From 8d00a6c8f6b08e7167bc03bf955cdc7e47c5132e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 22 Jul 2008 08:39:57 +0200 Subject: genirq: remove last NO_IDLE_HZ leftovers Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 8ccb462ea42c..f3047df2d23c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -197,10 +197,6 @@ extern int setup_irq(unsigned int irq, struct irqaction *new); #ifdef CONFIG_GENERIC_HARDIRQS -#ifndef handle_dynamic_tick -# define handle_dynamic_tick(a) do { } while (0) -#endif - #ifdef CONFIG_SMP #if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE) -- cgit v1.2.1 From 6902c0bead4ce266226fc0c5b3828b850bdc884a Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Fri, 6 Jun 2008 01:33:22 -0400 Subject: Input: gameport - make gameport_register_driver() return errors Perform actual driver registration right in gameport_register_driver() instead of offloading it to kgameportd and return proper error code to callers if driver registration fails. Note that driver <-> port matching is still done by kgameportd. Signed-off-by: Dmitry Torokhov --- include/linux/gameport.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/gameport.h b/include/linux/gameport.h index f64e29c0ef3f..5126125afd4e 100644 --- a/include/linux/gameport.h +++ b/include/linux/gameport.h @@ -146,10 +146,11 @@ static inline void gameport_unpin_driver(struct gameport *gameport) mutex_unlock(&gameport->drv_mutex); } -void __gameport_register_driver(struct gameport_driver *drv, struct module *owner); -static inline void gameport_register_driver(struct gameport_driver *drv) +int __gameport_register_driver(struct gameport_driver *drv, + struct module *owner, const char *mod_name); +static inline int gameport_register_driver(struct gameport_driver *drv) { - __gameport_register_driver(drv, THIS_MODULE); + return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); } void gameport_unregister_driver(struct gameport_driver *drv); -- cgit v1.2.1 From 8c4b3c29329eb7ffded3023e6d65bc415cb4e215 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Fri, 6 Jun 2008 01:33:51 -0400 Subject: Input: gameport - mark gameport_register_driver() __must_check Signed-off-by: Dmitry Torokhov --- include/linux/gameport.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/gameport.h b/include/linux/gameport.h index 5126125afd4e..0cd825f7363a 100644 --- a/include/linux/gameport.h +++ b/include/linux/gameport.h @@ -148,7 +148,7 @@ static inline void gameport_unpin_driver(struct gameport *gameport) int __gameport_register_driver(struct gameport_driver *drv, struct module *owner, const char *mod_name); -static inline int gameport_register_driver(struct gameport_driver *drv) +static inline int __must_check gameport_register_driver(struct gameport_driver *drv) { return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); } -- cgit v1.2.1 From 03bac96fae0efdb25e2059e5accbe4f3ee6328dd Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 23 Jun 2008 10:47:34 -0400 Subject: Input: expand keycode space Expand the number of potential key codes from 512 to 768 since people are coming up with more and more keys. Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 2 +- include/linux/mod_devicetable.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/input.h b/include/linux/input.h index a5802c9c81a4..7fae1dee356a 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -579,7 +579,7 @@ struct input_absinfo { /* We avoid low common keys in module aliases so they don't get huge. */ #define KEY_MIN_INTERESTING KEY_MUTE -#define KEY_MAX 0x1ff +#define KEY_MAX 0x2ff #define KEY_CNT (KEY_MAX+1) /* diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index c4db5827963d..0dddfa44ec19 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -274,7 +274,7 @@ struct pcmcia_device_id { /* Input */ #define INPUT_DEVICE_ID_EV_MAX 0x1f #define INPUT_DEVICE_ID_KEY_MIN_INTERESTING 0x71 -#define INPUT_DEVICE_ID_KEY_MAX 0x1ff +#define INPUT_DEVICE_ID_KEY_MAX 0x2ff #define INPUT_DEVICE_ID_REL_MAX 0x0f #define INPUT_DEVICE_ID_ABS_MAX 0x3f #define INPUT_DEVICE_ID_MSC_MAX 0x07 -- cgit v1.2.1 From 5a599a15182ed48e5bf54111feb3b21e425e194d Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Mon, 23 Jun 2008 10:47:53 -0400 Subject: Input: add keycodes for remote controls/phone keypads The new keys are separate from normal numeric keys and standard numeric keypads. The userspace should not attempt to apply modifiers like shift and NumLock to these so tey work properly regardless of the language mapping used. Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/linux/input.h b/include/linux/input.h index 7fae1dee356a..b86fb5581ce6 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -577,6 +577,19 @@ struct input_absinfo { #define KEY_BRL_DOT9 0x1f9 #define KEY_BRL_DOT10 0x1fa +#define KEY_NUMERIC_0 0x200 /* used by phones, remote controls, */ +#define KEY_NUMERIC_1 0x201 /* and other keypads */ +#define KEY_NUMERIC_2 0x202 +#define KEY_NUMERIC_3 0x203 +#define KEY_NUMERIC_4 0x204 +#define KEY_NUMERIC_5 0x205 +#define KEY_NUMERIC_6 0x206 +#define KEY_NUMERIC_7 0x207 +#define KEY_NUMERIC_8 0x208 +#define KEY_NUMERIC_9 0x209 +#define KEY_NUMERIC_STAR 0x20a +#define KEY_NUMERIC_POUND 0x20b + /* We avoid low common keys in module aliases so they don't get huge. */ #define KEY_MIN_INTERESTING KEY_MUTE #define KEY_MAX 0x2ff -- cgit v1.2.1 From feb2f55db45919aa80731f8877b60cab454b7b94 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 1 Aug 2008 11:53:29 +0300 Subject: [MTD] [OneNAND] Add defines for HF and sync write Signed-off-by: Adrian Hunter Signed-off-by: David Woodhouse --- include/linux/mtd/onenand_regs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h index d1b310c92eb4..0c6bbe28f38c 100644 --- a/include/linux/mtd/onenand_regs.h +++ b/include/linux/mtd/onenand_regs.h @@ -152,6 +152,8 @@ #define ONENAND_SYS_CFG1_INT (1 << 6) #define ONENAND_SYS_CFG1_IOBE (1 << 5) #define ONENAND_SYS_CFG1_RDY_CONF (1 << 4) +#define ONENAND_SYS_CFG1_HF (1 << 2) +#define ONENAND_SYS_CFG1_SYNC_WRITE (1 << 1) /* * Controller Status Register F240h (R) -- cgit v1.2.1 From 2e489e077a6ad118c4f247faedf330117b107cce Mon Sep 17 00:00:00 2001 From: Alexey Korolev Date: Tue, 5 Aug 2008 16:39:42 +0100 Subject: [MTD] [NOR] Add qry_mode_on()/qry_omde_off() to deal with odd chips There are some CFI chips which require non standard procedures to get into QRY mode. The possible way to support them would be trying different modes till QRY will be read. This patch introduce two new functions qry_mode_on qry_mode_off. qry_mode_on tries different commands in order switch chip into QRY mode. So if we have one more "odd" chip - we just could add several lines to qry_mode_on. Also using these functions remove unnecessary code duplicaton in porbe procedure. Currently there are two "odd" cases 1. Some old intel chips which require 0xFF before 0x98 2. ST M29DW chip which requires 0x98 to be sent at 0x555 (according to CFI should be 0x55) This patch is partialy based on the patch from Uwe (see "[PATCH 2/4] [RFC][MTD] cfi_probe: remove Intel chip workaround" thread ) Signed-off-by: Alexey Korolev Signed-off-by: Alexander Belyakov Signed-off-by: David Woodhouse --- include/linux/mtd/cfi.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index d6fb115f5a07..3058917d7b92 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -12,6 +12,7 @@ #include #include #include +#include #ifdef CONFIG_MTD_CFI_I1 #define cfi_interleave(cfi) 1 @@ -430,7 +431,6 @@ static inline uint32_t cfi_send_gen_cmd(u_char cmd, uint32_t cmd_addr, uint32_t { map_word val; uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type); - val = cfi_build_cmd(cmd, map, cfi); if (prev_val) @@ -483,6 +483,13 @@ static inline void cfi_udelay(int us) } } +int __xipram qry_present(struct map_info *map, __u32 base, + struct cfi_private *cfi); +int __xipram qry_mode_on(uint32_t base, struct map_info *map, + struct cfi_private *cfi); +void __xipram qry_mode_off(uint32_t base, struct map_info *map, + struct cfi_private *cfi); + struct cfi_extquery *cfi_read_pri(struct map_info *map, uint16_t adr, uint16_t size, const char* name); struct cfi_fixup { -- cgit v1.2.1 From e93cafe45fd74935e0aca2b79e533f0e3ed9640f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Anders=20Grafstr=C3=B6m?= Date: Tue, 5 Aug 2008 18:37:41 +0200 Subject: [MTD] [NOR] cfi_cmdset_0001: Timeouts for erase, write and unlock operations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Timeouts are currently given by the typical operation time times 8. It works in the general well-behaved case but not when an erase block is failing. For erase operations, it seems that a failing erase block will keep the device state machine in erasing state until the vendor specified maximum timeout period has passed. By this time the driver would have long since timed out, left erasing state and attempted further operations which all fail. This patch implements timeouts using values from the CFI Query structure when available. The patch also sets a longer timeout for locking operations. The current value used for locking/unlocking given by 1000000/HZ microseconds is too short for devices like J3 and J5 Strataflash which have a typical clear lock-bits time of 0.5 seconds. Signed-off-by: Anders Grafström Signed-off-by: David Woodhouse --- include/linux/mtd/flashchip.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h index 08dd131301c1..d4f38c5fd44e 100644 --- a/include/linux/mtd/flashchip.h +++ b/include/linux/mtd/flashchip.h @@ -73,6 +73,10 @@ struct flchip { int buffer_write_time; int erase_time; + int word_write_time_max; + int buffer_write_time_max; + int erase_time_max; + void *priv; }; -- cgit v1.2.1 From c314dfdc358847eef0fc07ec8682e1acc8cadd00 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Thu, 7 Aug 2008 11:55:07 +0100 Subject: [MTD] [NOR] Rename and export new cfi_qry_*() functions They need to be exported, so let's give them less generic-sounding names while we're at it. Original export patch, along with the suggestion about the nomenclature, from Stephen Rothwell. Signed-off-by: David Woodhouse --- include/linux/mtd/cfi.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index 3058917d7b92..ee5124ec319e 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -483,12 +483,12 @@ static inline void cfi_udelay(int us) } } -int __xipram qry_present(struct map_info *map, __u32 base, - struct cfi_private *cfi); -int __xipram qry_mode_on(uint32_t base, struct map_info *map, - struct cfi_private *cfi); -void __xipram qry_mode_off(uint32_t base, struct map_info *map, - struct cfi_private *cfi); +int __xipram cfi_qry_present(struct map_info *map, __u32 base, + struct cfi_private *cfi); +int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map, + struct cfi_private *cfi); +void __xipram cfi_qry_mode_off(uint32_t base, struct map_info *map, + struct cfi_private *cfi); struct cfi_extquery *cfi_read_pri(struct map_info *map, uint16_t adr, uint16_t size, const char* name); -- cgit v1.2.1 From b845b517b5e3706a3729f6ea83b88ab85f0725b0 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 8 Aug 2008 21:47:09 +0200 Subject: printk: robustify printk Avoid deadlocks against rq->lock and xtime_lock by deferring the klogd wakeup by polling from the timer tick. Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- include/linux/kernel.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index aaa998f65c7a..113ac8d0425f 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -200,6 +200,8 @@ extern struct ratelimit_state printk_ratelimit_state; extern int printk_ratelimit(void); extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, unsigned int interval_msec); +extern void printk_tick(void); +extern int printk_needs_cpu(int); #else static inline int vprintk(const char *s, va_list args) __attribute__ ((format (printf, 1, 0))); @@ -211,6 +213,8 @@ static inline int printk_ratelimit(void) { return 0; } static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \ unsigned int interval_msec) \ { return false; } +static inline void printk_tick(void) { } +static inline int printk_needs_cpu(int) { return 0; } #endif extern void asmlinkage __attribute__((format(printf, 1, 2))) -- cgit v1.2.1 From ced9cd40ac14111befd6b0c73ec90106c22a3fd7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 11 Aug 2008 14:38:12 +0200 Subject: printk: robustify printk, fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fix: include/linux/kernel.h: In function ‘printk_needs_cpu': include/linux/kernel.h:217: error: parameter name omitted Signed-off-by: Ingo Molnar --- include/linux/kernel.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 113ac8d0425f..3652a4564126 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -200,8 +200,6 @@ extern struct ratelimit_state printk_ratelimit_state; extern int printk_ratelimit(void); extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, unsigned int interval_msec); -extern void printk_tick(void); -extern int printk_needs_cpu(int); #else static inline int vprintk(const char *s, va_list args) __attribute__ ((format (printf, 1, 0))); @@ -213,10 +211,11 @@ static inline int printk_ratelimit(void) { return 0; } static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \ unsigned int interval_msec) \ { return false; } -static inline void printk_tick(void) { } -static inline int printk_needs_cpu(int) { return 0; } #endif +extern int printk_needs_cpu(int cpu); +extern void printk_tick(void); + extern void asmlinkage __attribute__((format(printf, 1, 2))) early_printk(const char *fmt, ...); -- cgit v1.2.1 From bb0eb217c980d50c45f3e793b4dcc70ab9ee820d Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 12 Aug 2008 12:40:50 +0300 Subject: [MTD] Define and use MTD_FAIL_ADDR_UNKNOWN instead of 0xffffffff Signed-off-by: Adrian Hunter Signed-off-by: David Woodhouse --- include/linux/mtd/mtd.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 922636548558..eae26bb6430a 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -25,8 +25,10 @@ #define MTD_ERASE_DONE 0x08 #define MTD_ERASE_FAILED 0x10 +#define MTD_FAIL_ADDR_UNKNOWN 0xffffffff + /* If the erase fails, fail_addr might indicate exactly which block failed. If - fail_addr = 0xffffffff, the failure was not at the device level or was not + fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not specific to any particular block. */ struct erase_info { struct mtd_info *mtd; -- cgit v1.2.1 From 36cd4fb5d277f34fe9e4db0deac2d4efd7dff735 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Wed, 6 Aug 2008 10:08:46 +0300 Subject: [MTD] [OneNAND] Add OMAP2 / OMAP3 OneNAND driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This driver had resided in the OMAP tree but is now to be in MTD. Original authors were: Jarkko Lavinen and Juha Yrjölä IRQ and DMA support written by Timo Teras Signed-off-by: Adrian Hunter Signed-off-by: David Woodhouse --- include/asm-arm/arch-omap/onenand.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-arm/arch-omap/onenand.h b/include/asm-arm/arch-omap/onenand.h index 6c959d0ce470..e30237117b69 100644 --- a/include/asm-arm/arch-omap/onenand.h +++ b/include/asm-arm/arch-omap/onenand.h @@ -16,6 +16,11 @@ struct omap_onenand_platform_data { int gpio_irq; struct mtd_partition *parts; int nr_parts; - int (*onenand_setup)(void __iomem *); + int (*onenand_setup)(void __iomem *, int freq); int dma_channel; }; + +int omap2_onenand_rephase(void); + +#define ONENAND_MAX_PARTITIONS 8 + -- cgit v1.2.1 From 17c1d2be28e485c0c8b09661db39d5bf2605069d Mon Sep 17 00:00:00 2001 From: Alexey Korolev Date: Wed, 20 Aug 2008 22:32:08 +0100 Subject: [MTD] [NAND] Fix missing kernel-doc [Reported by Randy Dunlap] Signed-off-by: Alexey Korolev Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 81774e5facf4..733d3f3b4eb8 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -248,6 +248,7 @@ struct nand_hw_control { * @read_page_raw: function to read a raw page without ECC * @write_page_raw: function to write a raw page without ECC * @read_page: function to read a page according to the ecc generator requirements + * @read_subpage: function to read parts of the page covered by ECC. * @write_page: function to write a page according to the ecc generator requirements * @read_oob: function to read chip OOB data * @write_oob: function to write chip OOB data -- cgit v1.2.1 From 1aa5dfb751d275ae7117d3b73ac423b4a46f2a73 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 20 Aug 2008 16:37:28 -0700 Subject: clocksource: keep track of original clocksource frequency The clocksource frequency is represented by clocksource->mult/2^(clocksource->shift). Currently, when NTP makes adjustments to the clock frequency, they are made directly to the mult value. This has the drawback that once changed, we cannot know what the orignal mult value was, or how much adjustment has been applied. This property causes problems in calculating proper ntp intervals when switching back and forth between clocksources. This patch separates the current mult value into a mult and mult_orig pair. The mult_orig value stays constant, while the ntp clocksource adjustments are done only to the mult value. This allows for correct ntp interval calculation and additionally lays the groundwork for a new notion of time, what I'm calling the monotonic-raw time, which is introduced in a following patch. Signed-off-by: John Stultz Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/clocksource.h | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 55e434feec99..f0a7fb984413 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -45,7 +45,8 @@ struct clocksource; * @read: returns a cycle value * @mask: bitmask for two's complement * subtraction of non 64 bit counters - * @mult: cycle to nanosecond multiplier + * @mult: cycle to nanosecond multiplier (adjusted by NTP) + * @mult_orig: cycle to nanosecond multiplier (unadjusted by NTP) * @shift: cycle to nanosecond divisor (power of two) * @flags: flags describing special properties * @vread: vsyscall based read @@ -63,6 +64,7 @@ struct clocksource { cycle_t (*read)(void); cycle_t mask; u32 mult; + u32 mult_orig; u32 shift; unsigned long flags; cycle_t (*vread)(void); @@ -201,16 +203,17 @@ static inline void clocksource_calculate_interval(struct clocksource *c, { u64 tmp; - /* XXX - All of this could use a whole lot of optimization */ + /* Do the ns -> cycle conversion first, using original mult */ tmp = length_nsec; tmp <<= c->shift; - tmp += c->mult/2; - do_div(tmp, c->mult); + tmp += c->mult_orig/2; + do_div(tmp, c->mult_orig); c->cycle_interval = (cycle_t)tmp; if (c->cycle_interval == 0) c->cycle_interval = 1; + /* Go back from cycles -> shifted ns, this time use ntp adjused mult */ c->xtime_interval = (u64)c->cycle_interval * c->mult; } -- cgit v1.2.1 From 2d42244ae71d6c7b0884b5664cf2eda30fb2ae68 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 20 Aug 2008 16:37:30 -0700 Subject: clocksource: introduce CLOCK_MONOTONIC_RAW In talking with Josip Loncaric, and his work on clock synchronization (see btime.sf.net), he mentioned that for really close synchronization, it is useful to have access to "hardware time", that is a notion of time that is not in any way adjusted by the clock slewing done to keep close time sync. Part of the issue is if we are using the kernel's ntp adjusted representation of time in order to measure how we should correct time, we can run into what Paul McKenney aptly described as "Painting a road using the lines we're painting as the guide". I had been thinking of a similar problem, and was trying to come up with a way to give users access to a purely hardware based time representation that avoided users having to know the underlying frequency and mask values needed to deal with the wide variety of possible underlying hardware counters. My solution is to introduce CLOCK_MONOTONIC_RAW. This exposes a nanosecond based time value, that increments starting at bootup and has no frequency adjustments made to it what so ever. The time is accessed from userspace via the posix_clock_gettime() syscall, passing CLOCK_MONOTONIC_RAW as the clock_id. Signed-off-by: John Stultz Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/clocksource.h | 3 +++ include/linux/time.h | 2 ++ 2 files changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index f0a7fb984413..f88d32f8ff7c 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -79,6 +79,7 @@ struct clocksource { /* timekeeping specific data, ignore */ cycle_t cycle_interval; u64 xtime_interval; + u32 raw_interval; /* * Second part is written at each timer interrupt * Keep it in a different cache line to dirty no @@ -87,6 +88,7 @@ struct clocksource { cycle_t cycle_last ____cacheline_aligned_in_smp; u64 xtime_nsec; s64 error; + struct timespec raw_time; #ifdef CONFIG_CLOCKSOURCE_WATCHDOG /* Watchdog related data, used by the framework */ @@ -215,6 +217,7 @@ static inline void clocksource_calculate_interval(struct clocksource *c, /* Go back from cycles -> shifted ns, this time use ntp adjused mult */ c->xtime_interval = (u64)c->cycle_interval * c->mult; + c->raw_interval = ((u64)c->cycle_interval * c->mult_orig) >> c->shift; } diff --git a/include/linux/time.h b/include/linux/time.h index e15206a7e82e..205f974b9ebf 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -117,6 +117,7 @@ extern int do_setitimer(int which, struct itimerval *value, extern unsigned int alarm_setitimer(unsigned int seconds); extern int do_getitimer(int which, struct itimerval *value); extern void getnstimeofday(struct timespec *tv); +extern void getrawmonotonic(struct timespec *ts); extern void getboottime(struct timespec *ts); extern void monotonic_to_bootbased(struct timespec *ts); @@ -214,6 +215,7 @@ struct itimerval { #define CLOCK_MONOTONIC 1 #define CLOCK_PROCESS_CPUTIME_ID 2 #define CLOCK_THREAD_CPUTIME_ID 3 +#define CLOCK_MONOTONIC_RAW 4 /* * The IDs of various hardware clocks: -- cgit v1.2.1 From 916c7a855174e3b53d182b97a26b2e27a29726a1 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Wed, 20 Aug 2008 16:46:08 -0700 Subject: ntp: fix ADJ_OFFSET_SS_READ bug and do_adjtimex() cleanup Thanks to the review by Michael Kerrisk a bug in the recent ADJ_OFFSET_SS_READ option was discovered, where the ntp time_offset was inadvertently set by it. This fixes this by making the adjtime code more separate from the ntp_adjtime code (both of which really want to be separate syscalls). Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Acked-by: John Stultz Signed-off-by: Ingo Molnar --- include/linux/timex.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/timex.h b/include/linux/timex.h index fc6035d29d56..c00bcdd3ae42 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -141,8 +141,15 @@ struct timex { #define ADJ_MICRO 0x1000 /* select microsecond resolution */ #define ADJ_NANO 0x2000 /* select nanosecond resolution */ #define ADJ_TICK 0x4000 /* tick value */ + +#ifdef __KERNEL__ +#define ADJ_ADJTIME 0x8000 /* switch between adjtime/adjtimex modes */ +#define ADJ_OFFSET_SINGLESHOT 0x0001 /* old-fashioned adjtime */ +#define ADJ_OFFSET_READONLY 0x2000 /* read-only adjtime */ +#else #define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */ -#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */ +#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */ +#endif /* xntp 3.4 compatibility names */ #define MOD_OFFSET ADJ_OFFSET -- cgit v1.2.1 From 942ed161944b3476639916cf544e6975b29c985a Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 26 Aug 2008 21:09:59 +0100 Subject: power_supply: Add function to return system-wide power state Certain drivers benefit from knowing whether the system is on ac or battery, for instance when determining which backlight registers to read. This adds a simple call to determine whether there's an online power supply other than any batteries. Signed-off-by: Matthew Garrett Signed-off-by: Anton Vorontsov --- include/linux/power_supply.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index ea96ead1d39d..f9348cba6dc1 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -165,6 +165,12 @@ struct power_supply_info { extern void power_supply_changed(struct power_supply *psy); extern int power_supply_am_i_supplied(struct power_supply *psy); +#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE) +extern int power_supply_is_system_supplied(void); +#else +static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } +#endif + extern int power_supply_register(struct device *parent, struct power_supply *psy); extern void power_supply_unregister(struct power_supply *psy); -- cgit v1.2.1 From 978b0116cd225682a29e3d1d5010319bf2de32c2 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 6 Sep 2008 20:04:36 +0200 Subject: softirq: allocate less vectors We don't need whole 32 of them, only NR_SOFTIRQS. Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/interrupt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 58ff4e74b2f3..54b3623434ec 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -252,6 +252,8 @@ enum HRTIMER_SOFTIRQ, #endif RCU_SOFTIRQ, /* Preferable RCU should always be the last softirq */ + + NR_SOFTIRQS }; /* softirq mask and active fields moved to irq_cpustat_t in -- cgit v1.2.1 From 4d5975e5016a9025814b92981de21eaf9203caa6 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 10 Sep 2008 12:06:15 -0400 Subject: Input: ads7846 - introduce .gpio_pendown to get pendown state The GPIO connected to ADS7846 nPENIRQ signal is usually used to get the pendown state as well. Introduce a .gpio_pendown, and use this to decide the pendown state if .get_pendown_state is NULL. Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- include/linux/spi/ads7846.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index daf744017a31..05eab2f11e63 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -43,6 +43,9 @@ struct ads7846_platform_data { u16 debounce_tol; /* tolerance used for filtering */ u16 debounce_rep; /* additional consecutive good readings * required after the first two */ + int gpio_pendown; /* the GPIO used to decide the pendown + * state if get_pendown_state == NULL + */ int (*get_pendown_state)(void); int (*filter_init) (struct ads7846_platform_data *pdata, void **filter_data); -- cgit v1.2.1 From f06febc96ba8e0af80bcc3eaec0a109e88275fac Mon Sep 17 00:00:00 2001 From: Frank Mayhar Date: Fri, 12 Sep 2008 09:54:39 -0700 Subject: timers: fix itimer/many thread hang Overview This patch reworks the handling of POSIX CPU timers, including the ITIMER_PROF, ITIMER_VIRT timers and rlimit handling. It was put together with the help of Roland McGrath, the owner and original writer of this code. The problem we ran into, and the reason for this rework, has to do with using a profiling timer in a process with a large number of threads. It appears that the performance of the old implementation of run_posix_cpu_timers() was at least O(n*3) (where "n" is the number of threads in a process) or worse. Everything is fine with an increasing number of threads until the time taken for that routine to run becomes the same as or greater than the tick time, at which point things degrade rather quickly. This patch fixes bug 9906, "Weird hang with NPTL and SIGPROF." Code Changes This rework corrects the implementation of run_posix_cpu_timers() to make it run in constant time for a particular machine. (Performance may vary between one machine and another depending upon whether the kernel is built as single- or multiprocessor and, in the latter case, depending upon the number of running processors.) To do this, at each tick we now update fields in signal_struct as well as task_struct. The run_posix_cpu_timers() function uses those fields to make its decisions. We define a new structure, "task_cputime," to contain user, system and scheduler times and use these in appropriate places: struct task_cputime { cputime_t utime; cputime_t stime; unsigned long long sum_exec_runtime; }; This is included in the structure "thread_group_cputime," which is a new substructure of signal_struct and which varies for uniprocessor versus multiprocessor kernels. For uniprocessor kernels, it uses "task_cputime" as a simple substructure, while for multiprocessor kernels it is a pointer: struct thread_group_cputime { struct task_cputime totals; }; struct thread_group_cputime { struct task_cputime *totals; }; We also add a new task_cputime substructure directly to signal_struct, to cache the earliest expiration of process-wide timers, and task_cputime also replaces the it_*_expires fields of task_struct (used for earliest expiration of thread timers). The "thread_group_cputime" structure contains process-wide timers that are updated via account_user_time() and friends. In the non-SMP case the structure is a simple aggregator; unfortunately in the SMP case that simplicity was not achievable due to cache-line contention between CPUs (in one measured case performance was actually _worse_ on a 16-cpu system than the same test on a 4-cpu system, due to this contention). For SMP, the thread_group_cputime counters are maintained as a per-cpu structure allocated using alloc_percpu(). The timer functions update only the timer field in the structure corresponding to the running CPU, obtained using per_cpu_ptr(). We define a set of inline functions in sched.h that we use to maintain the thread_group_cputime structure and hide the differences between UP and SMP implementations from the rest of the kernel. The thread_group_cputime_init() function initializes the thread_group_cputime structure for the given task. The thread_group_cputime_alloc() is a no-op for UP; for SMP it calls the out-of-line function thread_group_cputime_alloc_smp() to allocate and fill in the per-cpu structures and fields. The thread_group_cputime_free() function, also a no-op for UP, in SMP frees the per-cpu structures. The thread_group_cputime_clone_thread() function (also a UP no-op) for SMP calls thread_group_cputime_alloc() if the per-cpu structures haven't yet been allocated. The thread_group_cputime() function fills the task_cputime structure it is passed with the contents of the thread_group_cputime fields; in UP it's that simple but in SMP it must also safely check that tsk->signal is non-NULL (if it is it just uses the appropriate fields of task_struct) and, if so, sums the per-cpu values for each online CPU. Finally, the three functions account_group_user_time(), account_group_system_time() and account_group_exec_runtime() are used by timer functions to update the respective fields of the thread_group_cputime structure. Non-SMP operation is trivial and will not be mentioned further. The per-cpu structure is always allocated when a task creates its first new thread, via a call to thread_group_cputime_clone_thread() from copy_signal(). It is freed at process exit via a call to thread_group_cputime_free() from cleanup_signal(). All functions that formerly summed utime/stime/sum_sched_runtime values from from all threads in the thread group now use thread_group_cputime() to snapshot the values in the thread_group_cputime structure or the values in the task structure itself if the per-cpu structure hasn't been allocated. Finally, the code in kernel/posix-cpu-timers.c has changed quite a bit. The run_posix_cpu_timers() function has been split into a fast path and a slow path; the former safely checks whether there are any expired thread timers and, if not, just returns, while the slow path does the heavy lifting. With the dedicated thread group fields, timers are no longer "rebalanced" and the process_timer_rebalance() function and related code has gone away. All summing loops are gone and all code that used them now uses the thread_group_cputime() inline. When process-wide timers are set, the new task_cputime structure in signal_struct is used to cache the earliest expiration; this is checked in the fast path. Performance The fix appears not to add significant overhead to existing operations. It generally performs the same as the current code except in two cases, one in which it performs slightly worse (Case 5 below) and one in which it performs very significantly better (Case 2 below). Overall it's a wash except in those two cases. I've since done somewhat more involved testing on a dual-core Opteron system. Case 1: With no itimer running, for a test with 100,000 threads, the fixed kernel took 1428.5 seconds, 513 seconds more than the unfixed system, all of which was spent in the system. There were twice as many voluntary context switches with the fix as without it. Case 2: With an itimer running at .01 second ticks and 4000 threads (the most an unmodified kernel can handle), the fixed kernel ran the test in eight percent of the time (5.8 seconds as opposed to 70 seconds) and had better tick accuracy (.012 seconds per tick as opposed to .023 seconds per tick). Case 3: A 4000-thread test with an initial timer tick of .01 second and an interval of 10,000 seconds (i.e. a timer that ticks only once) had very nearly the same performance in both cases: 6.3 seconds elapsed for the fixed kernel versus 5.5 seconds for the unfixed kernel. With fewer threads (eight in these tests), the Case 1 test ran in essentially the same time on both the modified and unmodified kernels (5.2 seconds versus 5.8 seconds). The Case 2 test ran in about the same time as well, 5.9 seconds versus 5.4 seconds but again with much better tick accuracy, .013 seconds per tick versus .025 seconds per tick for the unmodified kernel. Since the fix affected the rlimit code, I also tested soft and hard CPU limits. Case 4: With a hard CPU limit of 20 seconds and eight threads (and an itimer running), the modified kernel was very slightly favored in that while it killed the process in 19.997 seconds of CPU time (5.002 seconds of wall time), only .003 seconds of that was system time, the rest was user time. The unmodified kernel killed the process in 20.001 seconds of CPU (5.014 seconds of wall time) of which .016 seconds was system time. Really, though, the results were too close to call. The results were essentially the same with no itimer running. Case 5: With a soft limit of 20 seconds and a hard limit of 2000 seconds (where the hard limit would never be reached) and an itimer running, the modified kernel exhibited worse tick accuracy than the unmodified kernel: .050 seconds/tick versus .028 seconds/tick. Otherwise, performance was almost indistinguishable. With no itimer running this test exhibited virtually identical behavior and times in both cases. In times past I did some limited performance testing. those results are below. On a four-cpu Opteron system without this fix, a sixteen-thread test executed in 3569.991 seconds, of which user was 3568.435s and system was 1.556s. On the same system with the fix, user and elapsed time were about the same, but system time dropped to 0.007 seconds. Performance with eight, four and one thread were comparable. Interestingly, the timer ticks with the fix seemed more accurate: The sixteen-thread test with the fix received 149543 ticks for 0.024 seconds per tick, while the same test without the fix received 58720 for 0.061 seconds per tick. Both cases were configured for an interval of 0.01 seconds. Again, the other tests were comparable. Each thread in this test computed the primes up to 25,000,000. I also did a test with a large number of threads, 100,000 threads, which is impossible without the fix. In this case each thread computed the primes only up to 10,000 (to make the runtime manageable). System time dominated, at 1546.968 seconds out of a total 2176.906 seconds (giving a user time of 629.938s). It received 147651 ticks for 0.015 seconds per tick, still quite accurate. There is obviously no comparable test without the fix. Signed-off-by: Frank Mayhar Cc: Roland McGrath Cc: Alexey Dobriyan Cc: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/posix-timers.h | 2 + include/linux/sched.h | 257 ++++++++++++++++++++++++++++++++++++++++--- include/linux/time.h | 3 + 3 files changed, 249 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index a7dd38f30ade..f9d8e9e94e9b 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -115,4 +115,6 @@ void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx, long clock_nanosleep_restart(struct restart_block *restart_block); +void update_rlimit_cpu(unsigned long rlim_new); + #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 3d9120c5ad15..26d7a5f2d0ba 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -425,6 +425,45 @@ struct pacct_struct { unsigned long ac_minflt, ac_majflt; }; +/** + * struct task_cputime - collected CPU time counts + * @utime: time spent in user mode, in &cputime_t units + * @stime: time spent in kernel mode, in &cputime_t units + * @sum_exec_runtime: total time spent on the CPU, in nanoseconds + * + * This structure groups together three kinds of CPU time that are + * tracked for threads and thread groups. Most things considering + * CPU time want to group these counts together and treat all three + * of them in parallel. + */ +struct task_cputime { + cputime_t utime; + cputime_t stime; + unsigned long long sum_exec_runtime; +}; +/* Alternate field names when used to cache expirations. */ +#define prof_exp stime +#define virt_exp utime +#define sched_exp sum_exec_runtime + +/** + * struct thread_group_cputime - thread group interval timer counts + * @totals: thread group interval timers; substructure for + * uniprocessor kernel, per-cpu for SMP kernel. + * + * This structure contains the version of task_cputime, above, that is + * used for thread group CPU clock calculations. + */ +#ifdef CONFIG_SMP +struct thread_group_cputime { + struct task_cputime *totals; +}; +#else +struct thread_group_cputime { + struct task_cputime totals; +}; +#endif + /* * NOTE! "signal_struct" does not have it's own * locking, because a shared signal_struct always @@ -470,6 +509,17 @@ struct signal_struct { cputime_t it_prof_expires, it_virt_expires; cputime_t it_prof_incr, it_virt_incr; + /* + * Thread group totals for process CPU clocks. + * See thread_group_cputime(), et al, for details. + */ + struct thread_group_cputime cputime; + + /* Earliest-expiration cache. */ + struct task_cputime cputime_expires; + + struct list_head cpu_timers[3]; + /* job control IDs */ /* @@ -500,7 +550,7 @@ struct signal_struct { * Live threads maintain their own counters and add to these * in __exit_signal, except for the group leader. */ - cputime_t utime, stime, cutime, cstime; + cputime_t cutime, cstime; cputime_t gtime; cputime_t cgtime; unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw; @@ -508,14 +558,6 @@ struct signal_struct { unsigned long inblock, oublock, cinblock, coublock; struct task_io_accounting ioac; - /* - * Cumulative ns of scheduled CPU time for dead threads in the - * group, not including a zombie group leader. (This only differs - * from jiffies_to_ns(utime + stime) if sched_clock uses something - * other than jiffies.) - */ - unsigned long long sum_sched_runtime; - /* * We don't bother to synchronize most readers of this at all, * because there is no reader checking a limit that actually needs @@ -527,8 +569,6 @@ struct signal_struct { */ struct rlimit rlim[RLIM_NLIMITS]; - struct list_head cpu_timers[3]; - /* keep the process-shared keyrings here so that they do the right * thing in threads created with CLONE_THREAD */ #ifdef CONFIG_KEYS @@ -1134,8 +1174,7 @@ struct task_struct { /* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */ unsigned long min_flt, maj_flt; - cputime_t it_prof_expires, it_virt_expires; - unsigned long long it_sched_expires; + struct task_cputime cputime_expires; struct list_head cpu_timers[3]; /* process credentials */ @@ -1585,6 +1624,7 @@ extern unsigned long long cpu_clock(int cpu); extern unsigned long long task_sched_runtime(struct task_struct *task); +extern unsigned long long thread_group_sched_runtime(struct task_struct *task); /* sched_exec is called by processes performing an exec */ #ifdef CONFIG_SMP @@ -2081,6 +2121,197 @@ static inline int spin_needbreak(spinlock_t *lock) #endif } +/* + * Thread group CPU time accounting. + */ +#ifdef CONFIG_SMP + +extern int thread_group_cputime_alloc_smp(struct task_struct *); +extern void thread_group_cputime_smp(struct task_struct *, struct task_cputime *); + +static inline void thread_group_cputime_init(struct signal_struct *sig) +{ + sig->cputime.totals = NULL; +} + +static inline int thread_group_cputime_clone_thread(struct task_struct *curr, + struct task_struct *new) +{ + if (curr->signal->cputime.totals) + return 0; + return thread_group_cputime_alloc_smp(curr); +} + +static inline void thread_group_cputime_free(struct signal_struct *sig) +{ + free_percpu(sig->cputime.totals); +} + +/** + * thread_group_cputime - Sum the thread group time fields across all CPUs. + * + * This is a wrapper for the real routine, thread_group_cputime_smp(). See + * that routine for details. + */ +static inline void thread_group_cputime( + struct task_struct *tsk, + struct task_cputime *times) +{ + thread_group_cputime_smp(tsk, times); +} + +/** + * thread_group_cputime_account_user - Maintain utime for a thread group. + * + * @tgtimes: Pointer to thread_group_cputime structure. + * @cputime: Time value by which to increment the utime field of that + * structure. + * + * If thread group time is being maintained, get the structure for the + * running CPU and update the utime field there. + */ +static inline void thread_group_cputime_account_user( + struct thread_group_cputime *tgtimes, + cputime_t cputime) +{ + if (tgtimes->totals) { + struct task_cputime *times; + + times = per_cpu_ptr(tgtimes->totals, get_cpu()); + times->utime = cputime_add(times->utime, cputime); + put_cpu_no_resched(); + } +} + +/** + * thread_group_cputime_account_system - Maintain stime for a thread group. + * + * @tgtimes: Pointer to thread_group_cputime structure. + * @cputime: Time value by which to increment the stime field of that + * structure. + * + * If thread group time is being maintained, get the structure for the + * running CPU and update the stime field there. + */ +static inline void thread_group_cputime_account_system( + struct thread_group_cputime *tgtimes, + cputime_t cputime) +{ + if (tgtimes->totals) { + struct task_cputime *times; + + times = per_cpu_ptr(tgtimes->totals, get_cpu()); + times->stime = cputime_add(times->stime, cputime); + put_cpu_no_resched(); + } +} + +/** + * thread_group_cputime_account_exec_runtime - Maintain exec runtime for a + * thread group. + * + * @tgtimes: Pointer to thread_group_cputime structure. + * @ns: Time value by which to increment the sum_exec_runtime field + * of that structure. + * + * If thread group time is being maintained, get the structure for the + * running CPU and update the sum_exec_runtime field there. + */ +static inline void thread_group_cputime_account_exec_runtime( + struct thread_group_cputime *tgtimes, + unsigned long long ns) +{ + if (tgtimes->totals) { + struct task_cputime *times; + + times = per_cpu_ptr(tgtimes->totals, get_cpu()); + times->sum_exec_runtime += ns; + put_cpu_no_resched(); + } +} + +#else /* CONFIG_SMP */ + +static inline void thread_group_cputime_init(struct signal_struct *sig) +{ + sig->cputime.totals.utime = cputime_zero; + sig->cputime.totals.stime = cputime_zero; + sig->cputime.totals.sum_exec_runtime = 0; +} + +static inline int thread_group_cputime_alloc(struct task_struct *tsk) +{ + return 0; +} + +static inline void thread_group_cputime_free(struct signal_struct *sig) +{ +} + +static inline int thread_group_cputime_clone_thread(struct task_struct *curr, + struct task_struct *tsk) +{ +} + +static inline void thread_group_cputime(struct task_struct *tsk, + struct task_cputime *cputime) +{ + *cputime = tsk->signal->cputime.totals; +} + +static inline void thread_group_cputime_account_user( + struct thread_group_cputime *tgtimes, + cputime_t cputime) +{ + tgtimes->totals->utime = cputime_add(tgtimes->totals->utime, cputime); +} + +static inline void thread_group_cputime_account_system( + struct thread_group_cputime *tgtimes, + cputime_t cputime) +{ + tgtimes->totals->stime = cputime_add(tgtimes->totals->stime, cputime); +} + +static inline void thread_group_cputime_account_exec_runtime( + struct thread_group_cputime *tgtimes, + unsigned long long ns) +{ + tgtimes->totals->sum_exec_runtime += ns; +} + +#endif /* CONFIG_SMP */ + +static inline void account_group_user_time(struct task_struct *tsk, + cputime_t cputime) +{ + struct signal_struct *sig; + + sig = tsk->signal; + if (likely(sig)) + thread_group_cputime_account_user(&sig->cputime, cputime); +} + +static inline void account_group_system_time(struct task_struct *tsk, + cputime_t cputime) +{ + struct signal_struct *sig; + + sig = tsk->signal; + if (likely(sig)) + thread_group_cputime_account_system(&sig->cputime, cputime); +} + +static inline void account_group_exec_runtime(struct task_struct *tsk, + unsigned long long ns) +{ + struct signal_struct *sig; + + sig = tsk->signal; + if (likely(sig)) + thread_group_cputime_account_exec_runtime(&sig->cputime, ns); +} + /* * Reevaluate whether the task has signals pending delivery. * Wake the task if so. diff --git a/include/linux/time.h b/include/linux/time.h index e15206a7e82e..1b70b3c293e9 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -125,6 +125,9 @@ extern int timekeeping_valid_for_hres(void); extern void update_wall_time(void); extern void update_xtime_cache(u64 nsec); +struct tms; +extern void do_sys_times(struct tms *); + /** * timespec_to_ns - Convert timespec to nanoseconds * @ts: pointer to the timespec variable to be converted -- cgit v1.2.1 From 0a8eaa4f9b58759595a1bfe13a1295fdc25ba026 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 14 Sep 2008 17:03:52 +0200 Subject: timers: fix itimer/many thread hang, fix #2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fix the UP build: In file included from arch/x86/kernel/asm-offsets_32.c:9, from arch/x86/kernel/asm-offsets.c:3: include/linux/sched.h: In function ‘thread_group_cputime_clone_thread’: include/linux/sched.h:2272: warning: no return statement in function returning non-void include/linux/sched.h: In function ‘thread_group_cputime_account_user’: include/linux/sched.h:2284: error: invalid type argument of ‘->’ (have ‘struct task_cputime’) include/linux/sched.h:2284: error: invalid type argument of ‘->’ (have ‘struct task_cputime’) include/linux/sched.h: In function ‘thread_group_cputime_account_system’: include/linux/sched.h:2291: error: invalid type argument of ‘->’ (have ‘struct task_cputime’) include/linux/sched.h:2291: error: invalid type argument of ‘->’ (have ‘struct task_cputime’) include/linux/sched.h: In function ‘thread_group_cputime_account_exec_runtime’: include/linux/sched.h:2298: error: invalid type argument of ‘->’ (have ‘struct task_cputime’) distcc[14501] ERROR: compile arch/x86/kernel/asm-offsets.c on a/30 failed make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1 Signed-off-by: Ingo Molnar --- include/linux/sched.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 26d7a5f2d0ba..ed355f02d329 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2251,6 +2251,7 @@ static inline void thread_group_cputime_free(struct signal_struct *sig) static inline int thread_group_cputime_clone_thread(struct task_struct *curr, struct task_struct *tsk) { + return 0; } static inline void thread_group_cputime(struct task_struct *tsk, @@ -2263,21 +2264,21 @@ static inline void thread_group_cputime_account_user( struct thread_group_cputime *tgtimes, cputime_t cputime) { - tgtimes->totals->utime = cputime_add(tgtimes->totals->utime, cputime); + tgtimes->totals.utime = cputime_add(tgtimes->totals.utime, cputime); } static inline void thread_group_cputime_account_system( struct thread_group_cputime *tgtimes, cputime_t cputime) { - tgtimes->totals->stime = cputime_add(tgtimes->totals->stime, cputime); + tgtimes->totals.stime = cputime_add(tgtimes->totals.stime, cputime); } static inline void thread_group_cputime_account_exec_runtime( struct thread_group_cputime *tgtimes, unsigned long long ns) { - tgtimes->totals->sum_exec_runtime += ns; + tgtimes->totals.sum_exec_runtime += ns; } #endif /* CONFIG_SMP */ -- cgit v1.2.1 From 5ce73a4a5a4893a1aa4cdeed1b1a5a6de42c43b6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 14 Sep 2008 17:11:46 +0200 Subject: timers: fix itimer/many thread hang, cleanups Signed-off-by: Ingo Molnar --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index ed355f02d329..7ce8d4e53565 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -430,7 +430,7 @@ struct pacct_struct { * @utime: time spent in user mode, in &cputime_t units * @stime: time spent in kernel mode, in &cputime_t units * @sum_exec_runtime: total time spent on the CPU, in nanoseconds - * + * * This structure groups together three kinds of CPU time that are * tracked for threads and thread groups. Most things considering * CPU time want to group these counts together and treat all three -- cgit v1.2.1 From 600715dcdf567c86f8b2c6173fcfb4b873e25a19 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Thu, 11 Sep 2008 01:31:45 -0700 Subject: generic: add phys_addr_t for holding physical addresses Add a kernel-wide "phys_addr_t" which is guaranteed to be able to hold any physical address. By default it equals the word size of the architecture, but a 32-bit architecture can set ARCH_PHYS_ADDR_T_64BIT if it needs a 64-bit phys_addr_t. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- include/asm-x86/page_32.h | 2 -- include/asm-x86/page_64.h | 1 - include/linux/types.h | 6 ++++++ 3 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h index ab8528793f08..d0e58605a520 100644 --- a/include/asm-x86/page_32.h +++ b/include/asm-x86/page_32.h @@ -33,7 +33,6 @@ typedef u64 pmdval_t; typedef u64 pudval_t; typedef u64 pgdval_t; typedef u64 pgprotval_t; -typedef u64 phys_addr_t; typedef union { struct { @@ -54,7 +53,6 @@ typedef unsigned long pmdval_t; typedef unsigned long pudval_t; typedef unsigned long pgdval_t; typedef unsigned long pgprotval_t; -typedef unsigned long phys_addr_t; typedef union { pteval_t pte; diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h index c6916c83e6b1..2456fbf2d7dc 100644 --- a/include/asm-x86/page_64.h +++ b/include/asm-x86/page_64.h @@ -79,7 +79,6 @@ typedef unsigned long pmdval_t; typedef unsigned long pudval_t; typedef unsigned long pgdval_t; typedef unsigned long pgprotval_t; -typedef unsigned long phys_addr_t; typedef struct page *pgtable_t; diff --git a/include/linux/types.h b/include/linux/types.h index d4a9ce6e2760..022c668496da 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -197,6 +197,12 @@ typedef u64 resource_size_t; typedef u32 resource_size_t; #endif +#ifdef CONFIG_PHYS_ADDR_T_64BIT +typedef u64 phys_addr_t; +#else +typedef u32 phys_addr_t; +#endif + struct ustat { __kernel_daddr_t f_tfree; __kernel_ino_t f_tinode; -- cgit v1.2.1 From 947d0496cf3e12ebfa70b3eaf561c25403247ce9 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Thu, 11 Sep 2008 01:31:48 -0700 Subject: generic: make PFN_PHYS explicitly return phys_addr_t PFN_PHYS, as its name suggests, turns a pfn into a physical address. However, it is a macro which just operates on its argument without modifying its type. pfns are typed unsigned long, but an unsigned long may not be long enough to hold a physical address (32-bit systems with more than 32 bits of physcial address). Make sure we cast to phys_addr_t to return a complete result. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- include/asm-x86/xen/page.h | 4 ++-- include/linux/pfn.h | 6 +++++- 2 files changed, 7 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h index 7b3835d3b77d..de9170b537ab 100644 --- a/include/asm-x86/xen/page.h +++ b/include/asm-x86/xen/page.h @@ -76,13 +76,13 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn) static inline xmaddr_t phys_to_machine(xpaddr_t phys) { unsigned offset = phys.paddr & ~PAGE_MASK; - return XMADDR(PFN_PHYS((u64)pfn_to_mfn(PFN_DOWN(phys.paddr))) | offset); + return XMADDR(PFN_PHYS(pfn_to_mfn(PFN_DOWN(phys.paddr))) | offset); } static inline xpaddr_t machine_to_phys(xmaddr_t machine) { unsigned offset = machine.maddr & ~PAGE_MASK; - return XPADDR(PFN_PHYS((u64)mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset); + return XPADDR(PFN_PHYS(mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset); } /* diff --git a/include/linux/pfn.h b/include/linux/pfn.h index bb01f8b92b56..7646637221f3 100644 --- a/include/linux/pfn.h +++ b/include/linux/pfn.h @@ -1,9 +1,13 @@ #ifndef _LINUX_PFN_H_ #define _LINUX_PFN_H_ +#ifndef __ASSEMBLY__ +#include +#endif + #define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) #define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) +#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT) #endif -- cgit v1.2.1 From 8308c54d7e312f7a03e2ce2057d0837e6fe3843f Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Thu, 11 Sep 2008 01:31:50 -0700 Subject: generic: redefine resource_size_t as phys_addr_t There's no good reason why a resource_size_t shouldn't just be a physical address, so simply redefine it in terms of phys_addr_t. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- include/linux/types.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/types.h b/include/linux/types.h index 022c668496da..f24f7beb47df 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -191,18 +191,14 @@ typedef __u32 __bitwise __wsum; #ifdef __KERNEL__ typedef unsigned __bitwise__ gfp_t; -#ifdef CONFIG_RESOURCES_64BIT -typedef u64 resource_size_t; -#else -typedef u32 resource_size_t; -#endif - #ifdef CONFIG_PHYS_ADDR_T_64BIT typedef u64 phys_addr_t; #else typedef u32 phys_addr_t; #endif +typedef phys_addr_t resource_size_t; + struct ustat { __kernel_daddr_t f_tfree; __kernel_ino_t f_tinode; -- cgit v1.2.1 From d7cfb60c5cf904ecf1e0ae23ec178175b86f0d4a Mon Sep 17 00:00:00 2001 From: Mark McLoughlin Date: Fri, 19 Sep 2008 13:13:44 +0100 Subject: hrtimer: remove hrtimer_clock_base::get_softirq_time() Peter Zijlstra noticed this 8 months ago and I just noticed it again. hrtimer_clock_base::get_softirq_time() is currently unused in the entire tree. In fact, looking at the logs, it appears as if it was never used. Remove it. Signed-off-by: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/linux/hrtimer.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 6d93dce61cbb..1b079bd29c35 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -145,7 +145,6 @@ struct hrtimer_sleeper { * @first: pointer to the timer node which expires first * @resolution: the resolution of the clock, in nanoseconds * @get_time: function to retrieve the current time of the clock - * @get_softirq_time: function to retrieve the current time from the softirq * @softirq_time: the time when running the hrtimer queue in the softirq * @offset: offset of this clock to the monotonic base * @reprogram: function to reprogram the timer event @@ -157,7 +156,6 @@ struct hrtimer_clock_base { struct rb_node *first; ktime_t resolution; ktime_t (*get_time)(void); - ktime_t (*get_softirq_time)(void); ktime_t softirq_time; #ifdef CONFIG_HIGH_RES_TIMERS ktime_t offset; -- cgit v1.2.1 From b91c4996df56fcd201f85c392a1de7bc3f6641f5 Mon Sep 17 00:00:00 2001 From: Mark McLoughlin Date: Fri, 19 Sep 2008 13:13:48 +0100 Subject: hrtimer: remove hrtimer_clock_base::reprogram() hrtimer_clock_base::reprogram() also appears to never have been used, so remove it. Signed-off-by: Mark McLoughlin Signed-off-by: Ingo Molnar --- include/linux/hrtimer.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 1b079bd29c35..68b0196d8696 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -147,7 +147,6 @@ struct hrtimer_sleeper { * @get_time: function to retrieve the current time of the clock * @softirq_time: the time when running the hrtimer queue in the softirq * @offset: offset of this clock to the monotonic base - * @reprogram: function to reprogram the timer event */ struct hrtimer_clock_base { struct hrtimer_cpu_base *cpu_base; @@ -159,9 +158,6 @@ struct hrtimer_clock_base { ktime_t softirq_time; #ifdef CONFIG_HIGH_RES_TIMERS ktime_t offset; - int (*reprogram)(struct hrtimer *t, - struct hrtimer_clock_base *b, - ktime_t n); #endif }; -- cgit v1.2.1 From bb34d92f643086d546b49cef680f6f305ed84414 Mon Sep 17 00:00:00 2001 From: Frank Mayhar Date: Fri, 12 Sep 2008 09:54:39 -0700 Subject: timers: fix itimer/many thread hang, v2 This is the second resubmission of the posix timer rework patch, posted a few days ago. This includes the changes from the previous resubmittion, which addressed Oleg Nesterov's comments, removing the RCU stuff from the patch and un-inlining the thread_group_cputime() function for SMP. In addition, per Ingo Molnar it simplifies the UP code, consolidating much of it with the SMP version and depending on lower-level SMP/UP handling to take care of the differences. It also cleans up some UP compile errors, moves the scheduler stats-related macros into kernel/sched_stats.h, cleans up a merge error in kernel/fork.c and has a few other minor fixes and cleanups as suggested by Oleg and Ingo. Thanks for the review, guys. Signed-off-by: Frank Mayhar Cc: Roland McGrath Cc: Alexey Dobriyan Cc: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/kernel_stat.h | 1 + include/linux/sched.h | 183 ++------------------------------------------ 2 files changed, 6 insertions(+), 178 deletions(-) (limited to 'include') diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index cf9f40a91c9c..cac3750cd65e 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -52,6 +52,7 @@ static inline int kstat_irqs(int irq) return sum; } +extern unsigned long long task_delta_exec(struct task_struct *); extern void account_user_time(struct task_struct *, cputime_t); extern void account_user_time_scaled(struct task_struct *, cputime_t); extern void account_system_time(struct task_struct *, int, cputime_t); diff --git a/include/linux/sched.h b/include/linux/sched.h index 7ce8d4e53565..b982fb48c8f0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -454,15 +454,9 @@ struct task_cputime { * This structure contains the version of task_cputime, above, that is * used for thread group CPU clock calculations. */ -#ifdef CONFIG_SMP struct thread_group_cputime { struct task_cputime *totals; }; -#else -struct thread_group_cputime { - struct task_cputime totals; -}; -#endif /* * NOTE! "signal_struct" does not have it's own @@ -2124,193 +2118,26 @@ static inline int spin_needbreak(spinlock_t *lock) /* * Thread group CPU time accounting. */ -#ifdef CONFIG_SMP -extern int thread_group_cputime_alloc_smp(struct task_struct *); -extern void thread_group_cputime_smp(struct task_struct *, struct task_cputime *); +extern int thread_group_cputime_alloc(struct task_struct *); +extern void thread_group_cputime(struct task_struct *, struct task_cputime *); static inline void thread_group_cputime_init(struct signal_struct *sig) { sig->cputime.totals = NULL; } -static inline int thread_group_cputime_clone_thread(struct task_struct *curr, - struct task_struct *new) +static inline int thread_group_cputime_clone_thread(struct task_struct *curr) { if (curr->signal->cputime.totals) return 0; - return thread_group_cputime_alloc_smp(curr); + return thread_group_cputime_alloc(curr); } -static inline void thread_group_cputime_free(struct signal_struct *sig) -{ - free_percpu(sig->cputime.totals); -} - -/** - * thread_group_cputime - Sum the thread group time fields across all CPUs. - * - * This is a wrapper for the real routine, thread_group_cputime_smp(). See - * that routine for details. - */ -static inline void thread_group_cputime( - struct task_struct *tsk, - struct task_cputime *times) -{ - thread_group_cputime_smp(tsk, times); -} - -/** - * thread_group_cputime_account_user - Maintain utime for a thread group. - * - * @tgtimes: Pointer to thread_group_cputime structure. - * @cputime: Time value by which to increment the utime field of that - * structure. - * - * If thread group time is being maintained, get the structure for the - * running CPU and update the utime field there. - */ -static inline void thread_group_cputime_account_user( - struct thread_group_cputime *tgtimes, - cputime_t cputime) -{ - if (tgtimes->totals) { - struct task_cputime *times; - - times = per_cpu_ptr(tgtimes->totals, get_cpu()); - times->utime = cputime_add(times->utime, cputime); - put_cpu_no_resched(); - } -} - -/** - * thread_group_cputime_account_system - Maintain stime for a thread group. - * - * @tgtimes: Pointer to thread_group_cputime structure. - * @cputime: Time value by which to increment the stime field of that - * structure. - * - * If thread group time is being maintained, get the structure for the - * running CPU and update the stime field there. - */ -static inline void thread_group_cputime_account_system( - struct thread_group_cputime *tgtimes, - cputime_t cputime) -{ - if (tgtimes->totals) { - struct task_cputime *times; - - times = per_cpu_ptr(tgtimes->totals, get_cpu()); - times->stime = cputime_add(times->stime, cputime); - put_cpu_no_resched(); - } -} - -/** - * thread_group_cputime_account_exec_runtime - Maintain exec runtime for a - * thread group. - * - * @tgtimes: Pointer to thread_group_cputime structure. - * @ns: Time value by which to increment the sum_exec_runtime field - * of that structure. - * - * If thread group time is being maintained, get the structure for the - * running CPU and update the sum_exec_runtime field there. - */ -static inline void thread_group_cputime_account_exec_runtime( - struct thread_group_cputime *tgtimes, - unsigned long long ns) -{ - if (tgtimes->totals) { - struct task_cputime *times; - - times = per_cpu_ptr(tgtimes->totals, get_cpu()); - times->sum_exec_runtime += ns; - put_cpu_no_resched(); - } -} - -#else /* CONFIG_SMP */ - -static inline void thread_group_cputime_init(struct signal_struct *sig) -{ - sig->cputime.totals.utime = cputime_zero; - sig->cputime.totals.stime = cputime_zero; - sig->cputime.totals.sum_exec_runtime = 0; -} - -static inline int thread_group_cputime_alloc(struct task_struct *tsk) -{ - return 0; -} static inline void thread_group_cputime_free(struct signal_struct *sig) { -} - -static inline int thread_group_cputime_clone_thread(struct task_struct *curr, - struct task_struct *tsk) -{ - return 0; -} - -static inline void thread_group_cputime(struct task_struct *tsk, - struct task_cputime *cputime) -{ - *cputime = tsk->signal->cputime.totals; -} - -static inline void thread_group_cputime_account_user( - struct thread_group_cputime *tgtimes, - cputime_t cputime) -{ - tgtimes->totals.utime = cputime_add(tgtimes->totals.utime, cputime); -} - -static inline void thread_group_cputime_account_system( - struct thread_group_cputime *tgtimes, - cputime_t cputime) -{ - tgtimes->totals.stime = cputime_add(tgtimes->totals.stime, cputime); -} - -static inline void thread_group_cputime_account_exec_runtime( - struct thread_group_cputime *tgtimes, - unsigned long long ns) -{ - tgtimes->totals.sum_exec_runtime += ns; -} - -#endif /* CONFIG_SMP */ - -static inline void account_group_user_time(struct task_struct *tsk, - cputime_t cputime) -{ - struct signal_struct *sig; - - sig = tsk->signal; - if (likely(sig)) - thread_group_cputime_account_user(&sig->cputime, cputime); -} - -static inline void account_group_system_time(struct task_struct *tsk, - cputime_t cputime) -{ - struct signal_struct *sig; - - sig = tsk->signal; - if (likely(sig)) - thread_group_cputime_account_system(&sig->cputime, cputime); -} - -static inline void account_group_exec_runtime(struct task_struct *tsk, - unsigned long long ns) -{ - struct signal_struct *sig; - - sig = tsk->signal; - if (likely(sig)) - thread_group_cputime_account_exec_runtime(&sig->cputime, ns); + free_percpu(sig->cputime.totals); } /* -- cgit v1.2.1 From 5a9fa73072854981a5c05eb7ba18a96d49c2804f Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 22 Sep 2008 14:42:50 -0700 Subject: posix-timers: kill ->it_sigev_signo and ->it_sigev_value With the recent changes ->it_sigev_signo and ->it_sigev_value are only used in sys_timer_create(), kill them. Signed-off-by: Oleg Nesterov Cc: mingo@elte.hu Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- include/linux/posix-timers.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index f9d8e9e94e9b..a7c721355549 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -45,8 +45,6 @@ struct k_itimer { int it_requeue_pending; /* waiting to requeue this timer */ #define REQUEUE_PENDING 1 int it_sigev_notify; /* notify word of sigevent struct */ - int it_sigev_signo; /* signo word of sigevent struct */ - sigval_t it_sigev_value; /* value word of sigevent struct */ struct task_struct *it_process; /* process to send signal to */ struct sigqueue *sigq; /* signal queue entry. */ union { -- cgit v1.2.1 From 1b02469088ac7a13d7e622b618b7410d0f1ce5ec Mon Sep 17 00:00:00 2001 From: Richard Kennedy Date: Mon, 22 Sep 2008 14:42:43 -0700 Subject: hrtimer: reorder struct hrtimer to save 8 bytes on 64bit builds reorder struct hrtimer to save 8 bytes on 64 bit builds when CONFIG_TIMER_STATS selected. (also removes 8 bytes from signal_struct) Signed-off-by: Richard Kennedy Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- include/linux/hrtimer.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 68b0196d8696..8730b60c9432 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -115,12 +115,12 @@ struct hrtimer { enum hrtimer_restart (*function)(struct hrtimer *); struct hrtimer_clock_base *base; unsigned long state; - enum hrtimer_cb_mode cb_mode; struct list_head cb_entry; + enum hrtimer_cb_mode cb_mode; #ifdef CONFIG_TIMER_STATS + int start_pid; void *start_site; char start_comm[16]; - int start_pid; #endif }; -- cgit v1.2.1 From d40e944c25fb4642adb2a4c580a48218a9f3f824 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Mon, 22 Sep 2008 14:42:44 -0700 Subject: ntp: improve adjtimex frequency rounding Change PPM_SCALE_INV_SHIFT so that it doesn't throw away any input bits (19 is the amount of the factor 2 in PPM_SCALE), the output frequency can then be calculated back to its input value, as the inverse divide produce a slightly larger value, which is then correctly rounded by the final shift. Reported-by: Martin Ziegler Signed-off-by: Roman Zippel Cc: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- include/linux/timex.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/timex.h b/include/linux/timex.h index c00bcdd3ae42..9007313b5b71 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -82,7 +82,7 @@ */ #define SHIFT_USEC 16 /* frequency offset scale (shift) */ #define PPM_SCALE (NSEC_PER_USEC << (NTP_SCALE_SHIFT - SHIFT_USEC)) -#define PPM_SCALE_INV_SHIFT 20 +#define PPM_SCALE_INV_SHIFT 19 #define PPM_SCALE_INV ((1ll << (PPM_SCALE_INV_SHIFT + NTP_SCALE_SHIFT)) / \ PPM_SCALE + 1) -- cgit v1.2.1 From 379daf6290814e41f14880094b7b773640df2461 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Thu, 25 Sep 2008 18:43:34 -0700 Subject: IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes Go through the iomem resource tree to check if any of the ioremap() requests span more than any slot in the iomem resource tree and do a WARN_ON() if we hit this check. This will raise a red-flag, if some driver is mapping more than what is needed. And hopefully identify possible corruptions much earlier. Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar --- include/linux/ioport.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ioport.h b/include/linux/ioport.h index fded376b94e3..01712cf1a38b 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -169,6 +169,7 @@ extern struct resource * __devm_request_region(struct device *dev, extern void __devm_release_region(struct device *dev, struct resource *parent, resource_size_t start, resource_size_t n); +extern int iomem_map_sanity_check(resource_size_t addr, unsigned long size); #endif /* __ASSEMBLY__ */ #endif /* _LINUX_IOPORT_H */ -- cgit v1.2.1 From e416de5e61e1a9b7f987804cbb67230b5f5293c6 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 23 Sep 2008 17:25:10 +0100 Subject: Export the ROM enable/disable helpers .... so that they can be used by MTD map drivers. Lets us close #9420 Signed-off-by: Alan Cox Signed-off-by: David Woodhouse --- include/linux/pci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index c0e14008a3c2..7a4cee00c1d6 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -631,6 +631,8 @@ int __must_check pci_assign_resource(struct pci_dev *dev, int i); int pci_select_bars(struct pci_dev *dev, unsigned long flags); /* ROM control related routines */ +int pci_enable_rom(struct pci_dev *pdev); +void pci_disable_rom(struct pci_dev *pdev); void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size); void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom); size_t pci_get_rom_size(void __iomem *rom, size_t size); -- cgit v1.2.1 From 7086efe1c1536f6bc160e7d60a9bfd645b91f279 Mon Sep 17 00:00:00 2001 From: Frank Mayhar Date: Fri, 12 Sep 2008 09:54:39 -0700 Subject: timers: fix itimer/many thread hang, v3 - fix UP lockup - another set of UP/SMP cleanups and simplifications Signed-off-by: Frank Mayhar Signed-off-by: Ingo Molnar --- include/linux/sched.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index b982fb48c8f0..23d9d5464544 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2134,7 +2134,6 @@ static inline int thread_group_cputime_clone_thread(struct task_struct *curr) return thread_group_cputime_alloc(curr); } - static inline void thread_group_cputime_free(struct signal_struct *sig) { free_percpu(sig->cputime.totals); -- cgit v1.2.1 From bbfbd8b151fe35c9a1180a7f5254c5d6b8387cc0 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 1 Oct 2008 16:13:54 +0900 Subject: sh: Move the shared INTC code out to drivers/sh/ The INTC code will be re-used across different architectures, so move this out to drivers/sh/ and include/linux/sh_intc.h respectively. Signed-off-by: Paul Mundt --- include/linux/sh_intc.h | 91 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 include/linux/sh_intc.h (limited to 'include') diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h new file mode 100644 index 000000000000..68e212ff9dde --- /dev/null +++ b/include/linux/sh_intc.h @@ -0,0 +1,91 @@ +#ifndef __SH_INTC_H +#define __SH_INTC_H + +typedef unsigned char intc_enum; + +struct intc_vect { + intc_enum enum_id; + unsigned short vect; +}; + +#define INTC_VECT(enum_id, vect) { enum_id, vect } +#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq)) + +struct intc_group { + intc_enum enum_id; + intc_enum enum_ids[32]; +}; + +#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } } + +struct intc_mask_reg { + unsigned long set_reg, clr_reg, reg_width; + intc_enum enum_ids[32]; +#ifdef CONFIG_SMP + unsigned long smp; +#endif +}; + +struct intc_prio_reg { + unsigned long set_reg, clr_reg, reg_width, field_width; + intc_enum enum_ids[16]; +#ifdef CONFIG_SMP + unsigned long smp; +#endif +}; + +struct intc_sense_reg { + unsigned long reg, reg_width, field_width; + intc_enum enum_ids[16]; +}; + +#ifdef CONFIG_SMP +#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8) +#else +#define INTC_SMP(stride, nr) +#endif + +struct intc_desc { + struct intc_vect *vectors; + unsigned int nr_vectors; + struct intc_group *groups; + unsigned int nr_groups; + struct intc_mask_reg *mask_regs; + unsigned int nr_mask_regs; + struct intc_prio_reg *prio_regs; + unsigned int nr_prio_regs; + struct intc_sense_reg *sense_regs; + unsigned int nr_sense_regs; + char *name; +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) + struct intc_mask_reg *ack_regs; + unsigned int nr_ack_regs; +#endif +}; + +#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a) +#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \ + mask_regs, prio_regs, sense_regs) \ +struct intc_desc symbol __initdata = { \ + _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ + _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ + _INTC_ARRAY(sense_regs), \ + chipname, \ +} + +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) +#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \ + mask_regs, prio_regs, sense_regs, ack_regs) \ +struct intc_desc symbol __initdata = { \ + _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ + _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ + _INTC_ARRAY(sense_regs), \ + chipname, \ + _INTC_ARRAY(ack_regs), \ +} +#endif + +void __init register_intc_controller(struct intc_desc *desc); +int intc_set_priority(unsigned int irq, unsigned int prio); + +#endif /* __SH_INTC_H */ -- cgit v1.2.1 From 225c9a8d1da274bf23efec43ec28b1c9e45e12f8 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 1 Oct 2008 16:24:32 +0900 Subject: video: sh_mobile_lcdcfb: Support HAVE_CLK=n configurations. This provides a workaround for users of sh_mobile_lcdcfb that don't define HAVE_CLK and have otherwise sane clock initialization. At the same time, move the sh_mobile_lcdc.h header to include/video/. Signed-off-by: Paul Mundt --- include/video/sh_mobile_lcdc.h | 72 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 include/video/sh_mobile_lcdc.h (limited to 'include') diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h new file mode 100644 index 000000000000..130102f663f5 --- /dev/null +++ b/include/video/sh_mobile_lcdc.h @@ -0,0 +1,72 @@ +#ifndef __ASM_SH_MOBILE_LCDC_H__ +#define __ASM_SH_MOBILE_LCDC_H__ + +#include + +enum { RGB8, /* 24bpp, 8:8:8 */ + RGB9, /* 18bpp, 9:9 */ + RGB12A, /* 24bpp, 12:12 */ + RGB12B, /* 12bpp */ + RGB16, /* 16bpp */ + RGB18, /* 18bpp */ + RGB24, /* 24bpp */ + SYS8A, /* 24bpp, 8:8:8 */ + SYS8B, /* 18bpp, 8:8:2 */ + SYS8C, /* 18bpp, 2:8:8 */ + SYS8D, /* 16bpp, 8:8 */ + SYS9, /* 18bpp, 9:9 */ + SYS12, /* 24bpp, 12:12 */ + SYS16A, /* 16bpp */ + SYS16B, /* 18bpp, 16:2 */ + SYS16C, /* 18bpp, 2:16 */ + SYS18, /* 18bpp */ + SYS24 };/* 24bpp */ + +enum { LCDC_CHAN_DISABLED = 0, + LCDC_CHAN_MAINLCD, + LCDC_CHAN_SUBLCD }; + +enum { LCDC_CLK_BUS, LCDC_CLK_PERIPHERAL, LCDC_CLK_EXTERNAL }; + +struct sh_mobile_lcdc_sys_bus_cfg { + unsigned long ldmt2r; + unsigned long ldmt3r; +}; + +struct sh_mobile_lcdc_sys_bus_ops { + void (*write_index)(void *handle, unsigned long data); + void (*write_data)(void *handle, unsigned long data); + unsigned long (*read_data)(void *handle); +}; + +struct sh_mobile_lcdc_board_cfg { + void *board_data; + int (*setup_sys)(void *board_data, void *sys_ops_handle, + struct sh_mobile_lcdc_sys_bus_ops *sys_ops); + void (*display_on)(void *board_data); + void (*display_off)(void *board_data); +}; + +struct sh_mobile_lcdc_lcd_size_cfg { /* width and height of panel in mm */ + unsigned long width; + unsigned long height; +}; + +struct sh_mobile_lcdc_chan_cfg { + int chan; + int bpp; + int interface_type; /* selects RGBn or SYSn I/F, see above */ + int clock_divider; + struct fb_videomode lcd_cfg; + struct sh_mobile_lcdc_lcd_size_cfg lcd_size_cfg; + struct sh_mobile_lcdc_board_cfg board_cfg; + struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */ +}; + +struct sh_mobile_lcdc_info { + unsigned long lddckr; + int clock_source; + struct sh_mobile_lcdc_chan_cfg ch[2]; +}; + +#endif /* __ASM_SH_MOBILE_LCDC_H__ */ -- cgit v1.2.1 From 1daef0a868370c5a96d031b9202e3354bea060e6 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 27 Jul 2008 18:19:01 -0400 Subject: NFS: Clean up nfs_sb_active/nfs_sb_deactive Instead of causing umount requests to block on server->active_wq while the asynchronous sillyrename deletes are executing, we can use the sb->s_active counter to obtain a reference to the super_block, and then release that reference in nfs_async_unlink_release(). Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index c9beacd16c00..4e477ae58699 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -119,7 +119,6 @@ struct nfs_server { void (*destroy)(struct nfs_server *); atomic_t active; /* Keep trace of any activity to this server */ - wait_queue_head_t active_wq; /* Wait for any activity to stop */ /* mountd-related mount options */ struct sockaddr_storage mountd_address; -- cgit v1.2.1 From 4eec952e42314b53e48fef1f54dd89cbf9789734 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 15 Jul 2008 17:58:13 -0400 Subject: NFS: Add options for finer control of the lookup cache Add the flag NFS_MOUNT_LOOKUP_CACHE_NONEG to turn off the caching of negative dentries. In reality what we do is to force nfs_lookup_revalidate() to always discard negative dentries. Add the flag NFS_MOUNT_LOOKUP_CACHE_NONE for enforcing stricter revalidation of dentries. It forces the revalidate code to always do a lookup instead of just checking the cached mtime of the parent directory. Signed-off-by: Trond Myklebust --- include/linux/nfs_mount.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/nfs_mount.h b/include/linux/nfs_mount.h index df7c6b7a7ebb..6549a06ac16e 100644 --- a/include/linux/nfs_mount.h +++ b/include/linux/nfs_mount.h @@ -65,4 +65,8 @@ struct nfs_mount_data { #define NFS_MOUNT_UNSHARED 0x8000 /* 5 */ #define NFS_MOUNT_FLAGMASK 0xFFFF +/* The following are for internal use only */ +#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000 +#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000 + #endif -- cgit v1.2.1 From a2b7ba9ca471438c2bb0c3bdf0ff2ed7fdce3d2f Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 7 Oct 2008 22:26:09 +0100 Subject: [ARM] S3C24XX: Move files out of include/asm-arm/plat-s3c* First move of items out of include/asm-arm/plat-s3c* to their new homes under arch/arm/plat-s3c/include/plat and arch/arm/plat-s3c24xx/include/plat directories. Note, we have to create a dummy arch/arm/plat-s3c/Makefile to allow us to add arch/arm/plat-s3c/include/plat to the path. Signed-off-by: Ben Dooks --- include/asm-arm/plat-s3c/debug-macro.S | 75 ----------- include/asm-arm/plat-s3c/regs-serial.h | 232 --------------------------------- include/asm-arm/plat-s3c/regs-timer.h | 115 ---------------- include/asm-arm/plat-s3c/uncompress.h | 2 +- include/asm-arm/plat-s3c24xx/cpu.h | 54 -------- include/asm-arm/plat-s3c24xx/devs.h | 49 ------- include/asm-arm/plat-s3c24xx/irq.h | 109 ---------------- include/asm-arm/plat-s3c24xx/pm.h | 73 ----------- include/asm-arm/plat-s3c24xx/s3c2400.h | 31 ----- include/asm-arm/plat-s3c24xx/s3c2410.h | 31 ----- include/asm-arm/plat-s3c24xx/s3c2440.h | 17 --- include/asm-arm/plat-s3c24xx/s3c2442.h | 17 --- include/asm-arm/plat-s3c24xx/s3c2443.h | 32 ----- 13 files changed, 1 insertion(+), 836 deletions(-) delete mode 100644 include/asm-arm/plat-s3c/debug-macro.S delete mode 100644 include/asm-arm/plat-s3c/regs-serial.h delete mode 100644 include/asm-arm/plat-s3c/regs-timer.h delete mode 100644 include/asm-arm/plat-s3c24xx/cpu.h delete mode 100644 include/asm-arm/plat-s3c24xx/devs.h delete mode 100644 include/asm-arm/plat-s3c24xx/irq.h delete mode 100644 include/asm-arm/plat-s3c24xx/pm.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2400.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2410.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2440.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2442.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2443.h (limited to 'include') diff --git a/include/asm-arm/plat-s3c/debug-macro.S b/include/asm-arm/plat-s3c/debug-macro.S deleted file mode 100644 index 84c40b847da8..000000000000 --- a/include/asm-arm/plat-s3c/debug-macro.S +++ /dev/null @@ -1,75 +0,0 @@ -/* linux/include/asm-arm/plat-s3c/debug-macro.S - * - * Copyright 2005, 2007 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include - -/* The S3C2440 implementations are used by default as they are the - * most widely re-used */ - - .macro fifo_level_s3c2440 rd, rx - ldr \rd, [ \rx, # S3C2410_UFSTAT ] - and \rd, \rd, #S3C2440_UFSTAT_TXMASK - .endm - -#ifndef fifo_level -#define fifo_level fifo_level_s3c2410 -#endif - - .macro fifo_full_s3c2440 rd, rx - ldr \rd, [ \rx, # S3C2410_UFSTAT ] - tst \rd, #S3C2440_UFSTAT_TXFULL - .endm - -#ifndef fifo_full -#define fifo_full fifo_full_s3c2440 -#endif - - .macro senduart,rd,rx - strb \rd, [\rx, # S3C2410_UTXH ] - .endm - - .macro busyuart, rd, rx - ldr \rd, [ \rx, # S3C2410_UFCON ] - tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? - beq 1001f @ - @ FIFO enabled... -1003: - fifo_full \rd, \rx - bne 1003b - b 1002f - -1001: - @ busy waiting for non fifo - ldr \rd, [ \rx, # S3C2410_UTRSTAT ] - tst \rd, #S3C2410_UTRSTAT_TXFE - beq 1001b - -1002: @ exit busyuart - .endm - - .macro waituart,rd,rx - ldr \rd, [ \rx, # S3C2410_UFCON ] - tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? - beq 1001f @ - @ FIFO enabled... -1003: - fifo_level \rd, \rx - teq \rd, #0 - bne 1003b - b 1002f -1001: - @ idle waiting for non fifo - ldr \rd, [ \rx, # S3C2410_UTRSTAT ] - tst \rd, #S3C2410_UTRSTAT_TXFE - beq 1001b - -1002: @ exit busyuart - .endm diff --git a/include/asm-arm/plat-s3c/regs-serial.h b/include/asm-arm/plat-s3c/regs-serial.h deleted file mode 100644 index a0daa647b92c..000000000000 --- a/include/asm-arm/plat-s3c/regs-serial.h +++ /dev/null @@ -1,232 +0,0 @@ -/* arch/arm/mach-s3c2410/include/mach/regs-serial.h - * - * From linux/include/asm-arm/hardware/serial_s3c2410.h - * - * Internal header file for Samsung S3C2410 serial ports (UART0-2) - * - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * - * Additional defines, (c) 2003 Simtec Electronics (linux@simtec.co.uk) - * - * Adapted from: - * - * Internal header file for MX1ADS serial ports (UART1 & 2) - * - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#ifndef __ASM_ARM_REGS_SERIAL_H -#define __ASM_ARM_REGS_SERIAL_H - -#define S3C24XX_VA_UART0 (S3C_VA_UART) -#define S3C24XX_VA_UART1 (S3C_VA_UART + 0x4000 ) -#define S3C24XX_VA_UART2 (S3C_VA_UART + 0x8000 ) -#define S3C24XX_VA_UART3 (S3C_VA_UART + 0xC000 ) - -#define S3C2410_PA_UART0 (S3C24XX_PA_UART) -#define S3C2410_PA_UART1 (S3C24XX_PA_UART + 0x4000 ) -#define S3C2410_PA_UART2 (S3C24XX_PA_UART + 0x8000 ) -#define S3C2443_PA_UART3 (S3C24XX_PA_UART + 0xC000 ) - -#define S3C2410_URXH (0x24) -#define S3C2410_UTXH (0x20) -#define S3C2410_ULCON (0x00) -#define S3C2410_UCON (0x04) -#define S3C2410_UFCON (0x08) -#define S3C2410_UMCON (0x0C) -#define S3C2410_UBRDIV (0x28) -#define S3C2410_UTRSTAT (0x10) -#define S3C2410_UERSTAT (0x14) -#define S3C2410_UFSTAT (0x18) -#define S3C2410_UMSTAT (0x1C) - -#define S3C2410_LCON_CFGMASK ((0xF<<3)|(0x3)) - -#define S3C2410_LCON_CS5 (0x0) -#define S3C2410_LCON_CS6 (0x1) -#define S3C2410_LCON_CS7 (0x2) -#define S3C2410_LCON_CS8 (0x3) -#define S3C2410_LCON_CSMASK (0x3) - -#define S3C2410_LCON_PNONE (0x0) -#define S3C2410_LCON_PEVEN (0x5 << 3) -#define S3C2410_LCON_PODD (0x4 << 3) -#define S3C2410_LCON_PMASK (0x7 << 3) - -#define S3C2410_LCON_STOPB (1<<2) -#define S3C2410_LCON_IRM (1<<6) - -#define S3C2440_UCON_CLKMASK (3<<10) -#define S3C2440_UCON_PCLK (0<<10) -#define S3C2440_UCON_UCLK (1<<10) -#define S3C2440_UCON_PCLK2 (2<<10) -#define S3C2440_UCON_FCLK (3<<10) -#define S3C2443_UCON_EPLL (3<<10) - -#define S3C2440_UCON2_FCLK_EN (1<<15) -#define S3C2440_UCON0_DIVMASK (15 << 12) -#define S3C2440_UCON1_DIVMASK (15 << 12) -#define S3C2440_UCON2_DIVMASK (7 << 12) -#define S3C2440_UCON_DIVSHIFT (12) - -#define S3C2412_UCON_CLKMASK (3<<10) -#define S3C2412_UCON_UCLK (1<<10) -#define S3C2412_UCON_USYSCLK (3<<10) -#define S3C2412_UCON_PCLK (0<<10) -#define S3C2412_UCON_PCLK2 (2<<10) - -#define S3C2410_UCON_UCLK (1<<10) -#define S3C2410_UCON_SBREAK (1<<4) - -#define S3C2410_UCON_TXILEVEL (1<<9) -#define S3C2410_UCON_RXILEVEL (1<<8) -#define S3C2410_UCON_TXIRQMODE (1<<2) -#define S3C2410_UCON_RXIRQMODE (1<<0) -#define S3C2410_UCON_RXFIFO_TOI (1<<7) -#define S3C2443_UCON_RXERR_IRQEN (1<<6) -#define S3C2443_UCON_LOOPBACK (1<<5) - -#define S3C2410_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ - S3C2410_UCON_RXILEVEL | \ - S3C2410_UCON_TXIRQMODE | \ - S3C2410_UCON_RXIRQMODE | \ - S3C2410_UCON_RXFIFO_TOI) - -#define S3C2410_UFCON_FIFOMODE (1<<0) -#define S3C2410_UFCON_TXTRIG0 (0<<6) -#define S3C2410_UFCON_RXTRIG8 (1<<4) -#define S3C2410_UFCON_RXTRIG12 (2<<4) - -/* S3C2440 FIFO trigger levels */ -#define S3C2440_UFCON_RXTRIG1 (0<<4) -#define S3C2440_UFCON_RXTRIG8 (1<<4) -#define S3C2440_UFCON_RXTRIG16 (2<<4) -#define S3C2440_UFCON_RXTRIG32 (3<<4) - -#define S3C2440_UFCON_TXTRIG0 (0<<6) -#define S3C2440_UFCON_TXTRIG16 (1<<6) -#define S3C2440_UFCON_TXTRIG32 (2<<6) -#define S3C2440_UFCON_TXTRIG48 (3<<6) - -#define S3C2410_UFCON_RESETBOTH (3<<1) -#define S3C2410_UFCON_RESETTX (1<<2) -#define S3C2410_UFCON_RESETRX (1<<1) - -#define S3C2410_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \ - S3C2410_UFCON_TXTRIG0 | \ - S3C2410_UFCON_RXTRIG8 ) - -#define S3C2410_UMCOM_AFC (1<<4) -#define S3C2410_UMCOM_RTS_LOW (1<<0) - -#define S3C2412_UMCON_AFC_63 (0<<5) /* same as s3c2443 */ -#define S3C2412_UMCON_AFC_56 (1<<5) -#define S3C2412_UMCON_AFC_48 (2<<5) -#define S3C2412_UMCON_AFC_40 (3<<5) -#define S3C2412_UMCON_AFC_32 (4<<5) -#define S3C2412_UMCON_AFC_24 (5<<5) -#define S3C2412_UMCON_AFC_16 (6<<5) -#define S3C2412_UMCON_AFC_8 (7<<5) - -#define S3C2410_UFSTAT_TXFULL (1<<9) -#define S3C2410_UFSTAT_RXFULL (1<<8) -#define S3C2410_UFSTAT_TXMASK (15<<4) -#define S3C2410_UFSTAT_TXSHIFT (4) -#define S3C2410_UFSTAT_RXMASK (15<<0) -#define S3C2410_UFSTAT_RXSHIFT (0) - -/* UFSTAT S3C2443 same as S3C2440 */ -#define S3C2440_UFSTAT_TXFULL (1<<14) -#define S3C2440_UFSTAT_RXFULL (1<<6) -#define S3C2440_UFSTAT_TXSHIFT (8) -#define S3C2440_UFSTAT_RXSHIFT (0) -#define S3C2440_UFSTAT_TXMASK (63<<8) -#define S3C2440_UFSTAT_RXMASK (63) - -#define S3C2410_UTRSTAT_TXE (1<<2) -#define S3C2410_UTRSTAT_TXFE (1<<1) -#define S3C2410_UTRSTAT_RXDR (1<<0) - -#define S3C2410_UERSTAT_OVERRUN (1<<0) -#define S3C2410_UERSTAT_FRAME (1<<2) -#define S3C2410_UERSTAT_BREAK (1<<3) -#define S3C2443_UERSTAT_PARITY (1<<1) - -#define S3C2410_UERSTAT_ANY (S3C2410_UERSTAT_OVERRUN | \ - S3C2410_UERSTAT_FRAME | \ - S3C2410_UERSTAT_BREAK) - -#define S3C2410_UMSTAT_CTS (1<<0) -#define S3C2410_UMSTAT_DeltaCTS (1<<2) - -#define S3C2443_DIVSLOT (0x2C) - -#ifndef __ASSEMBLY__ - -/* struct s3c24xx_uart_clksrc - * - * this structure defines a named clock source that can be used for the - * uart, so that the best clock can be selected for the requested baud - * rate. - * - * min_baud and max_baud define the range of baud-rates this clock is - * acceptable for, if they are both zero, it is assumed any baud rate that - * can be generated from this clock will be used. - * - * divisor gives the divisor from the clock to the one seen by the uart -*/ - -struct s3c24xx_uart_clksrc { - const char *name; - unsigned int divisor; - unsigned int min_baud; - unsigned int max_baud; -}; - -/* configuration structure for per-machine configurations for the - * serial port - * - * the pointer is setup by the machine specific initialisation from the - * arch/arm/mach-s3c2410/ directory. -*/ - -struct s3c2410_uartcfg { - unsigned char hwport; /* hardware port number */ - unsigned char unused; - unsigned short flags; - upf_t uart_flags; /* default uart flags */ - - unsigned long ucon; /* value of ucon for port */ - unsigned long ulcon; /* value of ulcon for port */ - unsigned long ufcon; /* value of ufcon for port */ - - struct s3c24xx_uart_clksrc *clocks; - unsigned int clocks_size; -}; - -/* s3c24xx_uart_devs - * - * this is exported from the core as we cannot use driver_register(), - * or platform_add_device() before the console_initcall() -*/ - -extern struct platform_device *s3c24xx_uart_devs[3]; - -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_ARM_REGS_SERIAL_H */ - diff --git a/include/asm-arm/plat-s3c/regs-timer.h b/include/asm-arm/plat-s3c/regs-timer.h deleted file mode 100644 index cc0eedd53e38..000000000000 --- a/include/asm-arm/plat-s3c/regs-timer.h +++ /dev/null @@ -1,115 +0,0 @@ -/* arch/arm/mach-s3c2410/include/mach/regs-timer.h - * - * Copyright (c) 2003 Simtec Electronics - * http://www.simtec.co.uk/products/SWLINUX/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * S3C2410 Timer configuration -*/ - - -#ifndef __ASM_ARCH_REGS_TIMER_H -#define __ASM_ARCH_REGS_TIMER_H - -#define S3C_TIMERREG(x) (S3C_VA_TIMER + (x)) -#define S3C_TIMERREG2(tmr,reg) S3C_TIMERREG((reg)+0x0c+((tmr)*0x0c)) - -#define S3C2410_TCFG0 S3C_TIMERREG(0x00) -#define S3C2410_TCFG1 S3C_TIMERREG(0x04) -#define S3C2410_TCON S3C_TIMERREG(0x08) - -#define S3C2410_TCFG_PRESCALER0_MASK (255<<0) -#define S3C2410_TCFG_PRESCALER1_MASK (255<<8) -#define S3C2410_TCFG_PRESCALER1_SHIFT (8) -#define S3C2410_TCFG_DEADZONE_MASK (255<<16) -#define S3C2410_TCFG_DEADZONE_SHIFT (16) - -#define S3C2410_TCFG1_MUX4_DIV2 (0<<16) -#define S3C2410_TCFG1_MUX4_DIV4 (1<<16) -#define S3C2410_TCFG1_MUX4_DIV8 (2<<16) -#define S3C2410_TCFG1_MUX4_DIV16 (3<<16) -#define S3C2410_TCFG1_MUX4_TCLK1 (4<<16) -#define S3C2410_TCFG1_MUX4_MASK (15<<16) -#define S3C2410_TCFG1_MUX4_SHIFT (16) - -#define S3C2410_TCFG1_MUX3_DIV2 (0<<12) -#define S3C2410_TCFG1_MUX3_DIV4 (1<<12) -#define S3C2410_TCFG1_MUX3_DIV8 (2<<12) -#define S3C2410_TCFG1_MUX3_DIV16 (3<<12) -#define S3C2410_TCFG1_MUX3_TCLK1 (4<<12) -#define S3C2410_TCFG1_MUX3_MASK (15<<12) - - -#define S3C2410_TCFG1_MUX2_DIV2 (0<<8) -#define S3C2410_TCFG1_MUX2_DIV4 (1<<8) -#define S3C2410_TCFG1_MUX2_DIV8 (2<<8) -#define S3C2410_TCFG1_MUX2_DIV16 (3<<8) -#define S3C2410_TCFG1_MUX2_TCLK1 (4<<8) -#define S3C2410_TCFG1_MUX2_MASK (15<<8) - - -#define S3C2410_TCFG1_MUX1_DIV2 (0<<4) -#define S3C2410_TCFG1_MUX1_DIV4 (1<<4) -#define S3C2410_TCFG1_MUX1_DIV8 (2<<4) -#define S3C2410_TCFG1_MUX1_DIV16 (3<<4) -#define S3C2410_TCFG1_MUX1_TCLK0 (4<<4) -#define S3C2410_TCFG1_MUX1_MASK (15<<4) - -#define S3C2410_TCFG1_MUX0_DIV2 (0<<0) -#define S3C2410_TCFG1_MUX0_DIV4 (1<<0) -#define S3C2410_TCFG1_MUX0_DIV8 (2<<0) -#define S3C2410_TCFG1_MUX0_DIV16 (3<<0) -#define S3C2410_TCFG1_MUX0_TCLK0 (4<<0) -#define S3C2410_TCFG1_MUX0_MASK (15<<0) - -#define S3C2410_TCFG1_MUX_DIV2 (0<<0) -#define S3C2410_TCFG1_MUX_DIV4 (1<<0) -#define S3C2410_TCFG1_MUX_DIV8 (2<<0) -#define S3C2410_TCFG1_MUX_DIV16 (3<<0) -#define S3C2410_TCFG1_MUX_TCLK (4<<0) -#define S3C2410_TCFG1_MUX_MASK (15<<0) - -#define S3C2410_TCFG1_SHIFT(x) ((x) * 4) - -/* for each timer, we have an count buffer, an compare buffer and - * an observation buffer -*/ - -/* WARNING - timer 4 has no buffer reg, and it's observation is at +4 */ - -#define S3C2410_TCNTB(tmr) S3C_TIMERREG2(tmr, 0x00) -#define S3C2410_TCMPB(tmr) S3C_TIMERREG2(tmr, 0x04) -#define S3C2410_TCNTO(tmr) S3C_TIMERREG2(tmr, (((tmr) == 4) ? 0x04 : 0x08)) - -#define S3C2410_TCON_T4RELOAD (1<<22) -#define S3C2410_TCON_T4MANUALUPD (1<<21) -#define S3C2410_TCON_T4START (1<<20) - -#define S3C2410_TCON_T3RELOAD (1<<19) -#define S3C2410_TCON_T3INVERT (1<<18) -#define S3C2410_TCON_T3MANUALUPD (1<<17) -#define S3C2410_TCON_T3START (1<<16) - -#define S3C2410_TCON_T2RELOAD (1<<15) -#define S3C2410_TCON_T2INVERT (1<<14) -#define S3C2410_TCON_T2MANUALUPD (1<<13) -#define S3C2410_TCON_T2START (1<<12) - -#define S3C2410_TCON_T1RELOAD (1<<11) -#define S3C2410_TCON_T1INVERT (1<<10) -#define S3C2410_TCON_T1MANUALUPD (1<<9) -#define S3C2410_TCON_T1START (1<<8) - -#define S3C2410_TCON_T0DEADZONE (1<<4) -#define S3C2410_TCON_T0RELOAD (1<<3) -#define S3C2410_TCON_T0INVERT (1<<2) -#define S3C2410_TCON_T0MANUALUPD (1<<1) -#define S3C2410_TCON_T0START (1<<0) - -#endif /* __ASM_ARCH_REGS_TIMER_H */ - - - diff --git a/include/asm-arm/plat-s3c/uncompress.h b/include/asm-arm/plat-s3c/uncompress.h index 19b9eda39485..4df006b9cc10 100644 --- a/include/asm-arm/plat-s3c/uncompress.h +++ b/include/asm-arm/plat-s3c/uncompress.h @@ -27,7 +27,7 @@ static void arch_detect_cpu(void); /* defines for UART registers */ -#include +#include #include /* working in physical space... */ diff --git a/include/asm-arm/plat-s3c24xx/cpu.h b/include/asm-arm/plat-s3c24xx/cpu.h deleted file mode 100644 index 23e420e8bd5b..000000000000 --- a/include/asm-arm/plat-s3c24xx/cpu.h +++ /dev/null @@ -1,54 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/cpu.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * Ben Dooks - * - * Header file for S3C24XX CPU support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -/* todo - fix when rmk changes iodescs to use `void __iomem *` */ - -#define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE } - -#ifndef MHZ -#define MHZ (1000*1000) -#endif - -#define print_mhz(m) ((m) / MHZ), ((m / 1000) % 1000) - -/* forward declaration */ -struct s3c24xx_uart_resources; -struct platform_device; -struct s3c2410_uartcfg; -struct map_desc; - -/* core initialisation functions */ - -extern void s3c24xx_init_irq(void); - -extern void s3c24xx_init_io(struct map_desc *mach_desc, int size); - -extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); - -extern void s3c24xx_init_clocks(int xtal); - -extern void s3c24xx_init_uartdevs(char *name, - struct s3c24xx_uart_resources *res, - struct s3c2410_uartcfg *cfg, int no); - -/* timer for 2410/2440 */ - -struct sys_timer; -extern struct sys_timer s3c24xx_timer; - -/* system device classes */ - -extern struct sysdev_class s3c2410_sysclass; -extern struct sysdev_class s3c2412_sysclass; -extern struct sysdev_class s3c2440_sysclass; -extern struct sysdev_class s3c2442_sysclass; -extern struct sysdev_class s3c2443_sysclass; diff --git a/include/asm-arm/plat-s3c24xx/devs.h b/include/asm-arm/plat-s3c24xx/devs.h deleted file mode 100644 index badaac9d64a8..000000000000 --- a/include/asm-arm/plat-s3c24xx/devs.h +++ /dev/null @@ -1,49 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/devs.h - * - * Copyright (c) 2004 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2410 standard platform devices - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ -#include - -struct s3c24xx_uart_resources { - struct resource *resources; - unsigned long nr_resources; -}; - -extern struct s3c24xx_uart_resources s3c2410_uart_resources[]; - -extern struct platform_device *s3c24xx_uart_devs[]; -extern struct platform_device *s3c24xx_uart_src[]; - -extern struct platform_device s3c_device_timer[]; - -extern struct platform_device s3c_device_usb; -extern struct platform_device s3c_device_lcd; -extern struct platform_device s3c_device_wdt; -extern struct platform_device s3c_device_i2c; -extern struct platform_device s3c_device_iis; -extern struct platform_device s3c_device_rtc; -extern struct platform_device s3c_device_adc; -extern struct platform_device s3c_device_sdi; -extern struct platform_device s3c_device_hsmmc; - -extern struct platform_device s3c_device_spi0; -extern struct platform_device s3c_device_spi1; - -extern struct platform_device s3c_device_nand; - -extern struct platform_device s3c_device_usbgadget; - -/* s3c2440 specific devices */ - -#ifdef CONFIG_CPU_S3C2440 - -extern struct platform_device s3c_device_camif; - -#endif diff --git a/include/asm-arm/plat-s3c24xx/irq.h b/include/asm-arm/plat-s3c24xx/irq.h deleted file mode 100644 index 45746a995343..000000000000 --- a/include/asm-arm/plat-s3c24xx/irq.h +++ /dev/null @@ -1,109 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/irq.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * Ben Dooks - * - * Header file for S3C24XX CPU IRQ support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#define irqdbf(x...) -#define irqdbf2(x...) - -#define EXTINT_OFF (IRQ_EINT4 - 4) - -/* these are exported for arch/arm/mach-* usage */ -extern struct irq_chip s3c_irq_level_chip; -extern struct irq_chip s3c_irq_chip; - -static inline void -s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit, - int subcheck) -{ - unsigned long mask; - unsigned long submask; - - submask = __raw_readl(S3C2410_INTSUBMSK); - mask = __raw_readl(S3C2410_INTMSK); - - submask |= (1UL << (irqno - IRQ_S3CUART_RX0)); - - /* check to see if we need to mask the parent IRQ */ - - if ((submask & subcheck) == subcheck) { - __raw_writel(mask | parentbit, S3C2410_INTMSK); - } - - /* write back masks */ - __raw_writel(submask, S3C2410_INTSUBMSK); - -} - -static inline void -s3c_irqsub_unmask(unsigned int irqno, unsigned int parentbit) -{ - unsigned long mask; - unsigned long submask; - - submask = __raw_readl(S3C2410_INTSUBMSK); - mask = __raw_readl(S3C2410_INTMSK); - - submask &= ~(1UL << (irqno - IRQ_S3CUART_RX0)); - mask &= ~parentbit; - - /* write back masks */ - __raw_writel(submask, S3C2410_INTSUBMSK); - __raw_writel(mask, S3C2410_INTMSK); -} - - -static inline void -s3c_irqsub_maskack(unsigned int irqno, unsigned int parentmask, unsigned int group) -{ - unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0); - - s3c_irqsub_mask(irqno, parentmask, group); - - __raw_writel(bit, S3C2410_SUBSRCPND); - - /* only ack parent if we've got all the irqs (seems we must - * ack, all and hope that the irq system retriggers ok when - * the interrupt goes off again) - */ - - if (1) { - __raw_writel(parentmask, S3C2410_SRCPND); - __raw_writel(parentmask, S3C2410_INTPND); - } -} - -static inline void -s3c_irqsub_ack(unsigned int irqno, unsigned int parentmask, unsigned int group) -{ - unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0); - - __raw_writel(bit, S3C2410_SUBSRCPND); - - /* only ack parent if we've got all the irqs (seems we must - * ack, all and hope that the irq system retriggers ok when - * the interrupt goes off again) - */ - - if (1) { - __raw_writel(parentmask, S3C2410_SRCPND); - __raw_writel(parentmask, S3C2410_INTPND); - } -} - -/* exported for use in arch/arm/mach-s3c2410 */ - -#ifdef CONFIG_PM -extern int s3c_irq_wake(unsigned int irqno, unsigned int state); -#else -#define s3c_irq_wake NULL -#endif - -extern int s3c_irqext_type(unsigned int irq, unsigned int type); diff --git a/include/asm-arm/plat-s3c24xx/pm.h b/include/asm-arm/plat-s3c24xx/pm.h deleted file mode 100644 index cc623667e48a..000000000000 --- a/include/asm-arm/plat-s3c24xx/pm.h +++ /dev/null @@ -1,73 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/pm.h - * - * Copyright (c) 2004 Simtec Electronics - * Written by Ben Dooks, - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -/* s3c2410_pm_init - * - * called from board at initialisation time to setup the power - * management -*/ - -#ifdef CONFIG_PM - -extern __init int s3c2410_pm_init(void); - -#else - -static inline int s3c2410_pm_init(void) -{ - return 0; -} -#endif - -/* configuration for the IRQ mask over sleep */ -extern unsigned long s3c_irqwake_intmask; -extern unsigned long s3c_irqwake_eintmask; - -/* IRQ masks for IRQs allowed to go to sleep (see irq.c) */ -extern unsigned long s3c_irqwake_intallow; -extern unsigned long s3c_irqwake_eintallow; - -/* per-cpu sleep functions */ - -extern void (*pm_cpu_prep)(void); -extern void (*pm_cpu_sleep)(void); - -/* Flags for PM Control */ - -extern unsigned long s3c_pm_flags; - -/* from sleep.S */ - -extern int s3c2410_cpu_save(unsigned long *saveblk); -extern void s3c2410_cpu_suspend(void); -extern void s3c2410_cpu_resume(void); - -extern unsigned long s3c2410_sleep_save_phys; - -/* sleep save info */ - -struct sleep_save { - void __iomem *reg; - unsigned long val; -}; - -#define SAVE_ITEM(x) \ - { .reg = (x) } - -extern void s3c2410_pm_do_save(struct sleep_save *ptr, int count); -extern void s3c2410_pm_do_restore(struct sleep_save *ptr, int count); - -#ifdef CONFIG_PM -extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state); -extern int s3c24xx_irq_resume(struct sys_device *dev); -#else -#define s3c24xx_irq_suspend NULL -#define s3c24xx_irq_resume NULL -#endif diff --git a/include/asm-arm/plat-s3c24xx/s3c2400.h b/include/asm-arm/plat-s3c24xx/s3c2400.h deleted file mode 100644 index 3a5a16821af8..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2400.h +++ /dev/null @@ -1,31 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2400.h - * - * Copyright (c) 2004 Simtec Electronics - * Ben Dooks - * - * Header file for S3C2400 cpu support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Modifications: - * 09-Fev-2006 LCVR First version, based on s3c2410.h -*/ - -#ifdef CONFIG_CPU_S3C2400 - -extern int s3c2400_init(void); - -extern void s3c2400_map_io(struct map_desc *mach_desc, int size); - -extern void s3c2400_init_uarts(struct s3c2410_uartcfg *cfg, int no); - -extern void s3c2400_init_clocks(int xtal); - -#else -#define s3c2400_init_clocks NULL -#define s3c2400_init_uarts NULL -#define s3c2400_map_io NULL -#define s3c2400_init NULL -#endif diff --git a/include/asm-arm/plat-s3c24xx/s3c2410.h b/include/asm-arm/plat-s3c24xx/s3c2410.h deleted file mode 100644 index 3cd1ec677b3f..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2410.h +++ /dev/null @@ -1,31 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2410.h - * - * Copyright (c) 2004 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2410 machine directory - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * -*/ - -#ifdef CONFIG_CPU_S3C2410 - -extern int s3c2410_init(void); - -extern void s3c2410_map_io(struct map_desc *mach_desc, int size); - -extern void s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no); - -extern void s3c2410_init_clocks(int xtal); - -#else -#define s3c2410_init_clocks NULL -#define s3c2410_init_uarts NULL -#define s3c2410_map_io NULL -#define s3c2410_init NULL -#endif - -extern int s3c2410_baseclk_add(void); diff --git a/include/asm-arm/plat-s3c24xx/s3c2440.h b/include/asm-arm/plat-s3c24xx/s3c2440.h deleted file mode 100644 index 107853bf9481..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2440.h +++ /dev/null @@ -1,17 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2440.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2440 cpu support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifdef CONFIG_CPU_S3C2440 -extern int s3c2440_init(void); -#else -#define s3c2440_init NULL -#endif diff --git a/include/asm-arm/plat-s3c24xx/s3c2442.h b/include/asm-arm/plat-s3c24xx/s3c2442.h deleted file mode 100644 index 451a23a2092a..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2442.h +++ /dev/null @@ -1,17 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2442.h - * - * Copyright (c) 2006 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2442 cpu support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifdef CONFIG_CPU_S3C2442 -extern int s3c2442_init(void); -#else -#define s3c2442_init NULL -#endif diff --git a/include/asm-arm/plat-s3c24xx/s3c2443.h b/include/asm-arm/plat-s3c24xx/s3c2443.h deleted file mode 100644 index 11d83b5c84e6..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2443.h +++ /dev/null @@ -1,32 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2443.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2443 cpu support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifdef CONFIG_CPU_S3C2443 - -struct s3c2410_uartcfg; - -extern int s3c2443_init(void); - -extern void s3c2443_map_io(struct map_desc *mach_desc, int size); - -extern void s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no); - -extern void s3c2443_init_clocks(int xtal); - -extern int s3c2443_baseclk_add(void); - -#else -#define s3c2443_init_clocks NULL -#define s3c2443_init_uarts NULL -#define s3c2443_map_io NULL -#define s3c2443_init NULL -#endif -- cgit v1.2.1 From 691beb13cdc88358334ef0ba867c080a247a760f Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 5 Oct 2008 14:48:22 -0400 Subject: NFS: Allow concurrent inode revalidation Currently, if two processes are both trying to revalidate metadata for the same inode, they will find themselves being serialised. There is no good justification for this now that we have improved our ability to detect stale attribute data, so we should remove that serialisation. Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 78a5922a2f11..ca563ee13e32 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -200,11 +200,10 @@ struct nfs_inode { /* * Bit offsets in flags field */ -#define NFS_INO_REVALIDATING (0) /* revalidating attrs */ -#define NFS_INO_ADVISE_RDPLUS (1) /* advise readdirplus */ -#define NFS_INO_STALE (2) /* possible stale inode */ -#define NFS_INO_ACL_LRU_SET (3) /* Inode is on the LRU list */ -#define NFS_INO_MOUNTPOINT (4) /* inode is remote mountpoint */ +#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */ +#define NFS_INO_STALE (1) /* possible stale inode */ +#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */ +#define NFS_INO_MOUNTPOINT (3) /* inode is remote mountpoint */ static inline struct nfs_inode *NFS_I(const struct inode *inode) { -- cgit v1.2.1 From d5120ae72a066b18f98e0c45ce73262f58030851 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 7 Oct 2008 23:09:51 +0100 Subject: [ARM] S3C24XX: Additional include moves Continue moving the include files into arch/arm Signed-off-by: Ben Dooks --- include/asm-arm/plat-s3c/map.h | 40 -------- include/asm-arm/plat-s3c/regs-adc.h | 60 ----------- include/asm-arm/plat-s3c/uncompress.h | 155 ----------------------------- include/asm-arm/plat-s3c24xx/clock.h | 64 ------------ include/asm-arm/plat-s3c24xx/common-smdk.h | 15 --- include/asm-arm/plat-s3c24xx/dma.h | 82 --------------- include/asm-arm/plat-s3c24xx/s3c2412.h | 29 ------ 7 files changed, 445 deletions(-) delete mode 100644 include/asm-arm/plat-s3c/map.h delete mode 100644 include/asm-arm/plat-s3c/regs-adc.h delete mode 100644 include/asm-arm/plat-s3c/uncompress.h delete mode 100644 include/asm-arm/plat-s3c24xx/clock.h delete mode 100644 include/asm-arm/plat-s3c24xx/common-smdk.h delete mode 100644 include/asm-arm/plat-s3c24xx/dma.h delete mode 100644 include/asm-arm/plat-s3c24xx/s3c2412.h (limited to 'include') diff --git a/include/asm-arm/plat-s3c/map.h b/include/asm-arm/plat-s3c/map.h deleted file mode 100644 index b84289d32a54..000000000000 --- a/include/asm-arm/plat-s3c/map.h +++ /dev/null @@ -1,40 +0,0 @@ -/* linux/include/asm-arm/plat-s3c/map.h - * - * Copyright 2003, 2007 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * S3C - Memory map definitions (virtual addresses) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_PLAT_MAP_H -#define __ASM_PLAT_MAP_H __FILE__ - -/* Fit all our registers in at 0xF4000000 upwards, trying to use as - * little of the VA space as possible so vmalloc and friends have a - * better chance of getting memory. - * - * we try to ensure stuff like the IRQ registers are available for - * an single MOVS instruction (ie, only 8 bits of set data) - */ - -#define S3C_ADDR_BASE (0xF4000000) - -#ifndef __ASSEMBLY__ -#define S3C_ADDR(x) ((void __iomem __force *)S3C_ADDR_BASE + (x)) -#else -#define S3C_ADDR(x) (S3C_ADDR_BASE + (x)) -#endif - -#define S3C_VA_IRQ S3C_ADDR(0x00000000) /* irq controller(s) */ -#define S3C_VA_SYS S3C_ADDR(0x00100000) /* system control */ -#define S3C_VA_MEM S3C_ADDR(0x00200000) /* system control */ -#define S3C_VA_TIMER S3C_ADDR(0x00300000) /* timer block */ -#define S3C_VA_WATCHDOG S3C_ADDR(0x00400000) /* watchdog */ -#define S3C_VA_UART S3C_ADDR(0x01000000) /* UART */ - -#endif /* __ASM_PLAT_MAP_H */ diff --git a/include/asm-arm/plat-s3c/regs-adc.h b/include/asm-arm/plat-s3c/regs-adc.h deleted file mode 100644 index 4323cccc86cd..000000000000 --- a/include/asm-arm/plat-s3c/regs-adc.h +++ /dev/null @@ -1,60 +0,0 @@ -/* arch/arm/mach-s3c2410/include/mach/regs-adc.h - * - * Copyright (c) 2004 Shannon Holland - * - * This program is free software; yosu can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * S3C2410 ADC registers -*/ - -#ifndef __ASM_ARCH_REGS_ADC_H -#define __ASM_ARCH_REGS_ADC_H "regs-adc.h" - -#define S3C2410_ADCREG(x) (x) - -#define S3C2410_ADCCON S3C2410_ADCREG(0x00) -#define S3C2410_ADCTSC S3C2410_ADCREG(0x04) -#define S3C2410_ADCDLY S3C2410_ADCREG(0x08) -#define S3C2410_ADCDAT0 S3C2410_ADCREG(0x0C) -#define S3C2410_ADCDAT1 S3C2410_ADCREG(0x10) - - -/* ADCCON Register Bits */ -#define S3C2410_ADCCON_ECFLG (1<<15) -#define S3C2410_ADCCON_PRSCEN (1<<14) -#define S3C2410_ADCCON_PRSCVL(x) (((x)&0xFF)<<6) -#define S3C2410_ADCCON_PRSCVLMASK (0xFF<<6) -#define S3C2410_ADCCON_SELMUX(x) (((x)&0x7)<<3) -#define S3C2410_ADCCON_MUXMASK (0x7<<3) -#define S3C2410_ADCCON_STDBM (1<<2) -#define S3C2410_ADCCON_READ_START (1<<1) -#define S3C2410_ADCCON_ENABLE_START (1<<0) -#define S3C2410_ADCCON_STARTMASK (0x3<<0) - - -/* ADCTSC Register Bits */ -#define S3C2410_ADCTSC_YM_SEN (1<<7) -#define S3C2410_ADCTSC_YP_SEN (1<<6) -#define S3C2410_ADCTSC_XM_SEN (1<<5) -#define S3C2410_ADCTSC_XP_SEN (1<<4) -#define S3C2410_ADCTSC_PULL_UP_DISABLE (1<<3) -#define S3C2410_ADCTSC_AUTO_PST (1<<2) -#define S3C2410_ADCTSC_XY_PST(x) (((x)&0x3)<<0) - -/* ADCDAT0 Bits */ -#define S3C2410_ADCDAT0_UPDOWN (1<<15) -#define S3C2410_ADCDAT0_AUTO_PST (1<<14) -#define S3C2410_ADCDAT0_XY_PST (0x3<<12) -#define S3C2410_ADCDAT0_XPDATA_MASK (0x03FF) - -/* ADCDAT1 Bits */ -#define S3C2410_ADCDAT1_UPDOWN (1<<15) -#define S3C2410_ADCDAT1_AUTO_PST (1<<14) -#define S3C2410_ADCDAT1_XY_PST (0x3<<12) -#define S3C2410_ADCDAT1_YPDATA_MASK (0x03FF) - -#endif /* __ASM_ARCH_REGS_ADC_H */ - - diff --git a/include/asm-arm/plat-s3c/uncompress.h b/include/asm-arm/plat-s3c/uncompress.h deleted file mode 100644 index 4df006b9cc10..000000000000 --- a/include/asm-arm/plat-s3c/uncompress.h +++ /dev/null @@ -1,155 +0,0 @@ -/* linux/include/asm-arm/plat-s3c/uncompress.h - * - * Copyright 2003, 2007 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * S3C - uncompress code - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_PLAT_UNCOMPRESS_H -#define __ASM_PLAT_UNCOMPRESS_H - -typedef unsigned int upf_t; /* cannot include linux/serial_core.h */ - -/* uart setup */ - -static unsigned int fifo_mask; -static unsigned int fifo_max; - -/* forward declerations */ - -static void arch_detect_cpu(void); - -/* defines for UART registers */ - -#include -#include - -/* working in physical space... */ -#undef S3C2410_WDOGREG -#define S3C2410_WDOGREG(x) ((S3C24XX_PA_WATCHDOG + (x))) - -/* how many bytes we allow into the FIFO at a time in FIFO mode */ -#define FIFO_MAX (14) - -#define uart_base S3C24XX_PA_UART + (0x4000*CONFIG_S3C_LOWLEVEL_UART_PORT) - -static __inline__ void -uart_wr(unsigned int reg, unsigned int val) -{ - volatile unsigned int *ptr; - - ptr = (volatile unsigned int *)(reg + uart_base); - *ptr = val; -} - -static __inline__ unsigned int -uart_rd(unsigned int reg) -{ - volatile unsigned int *ptr; - - ptr = (volatile unsigned int *)(reg + uart_base); - return *ptr; -} - -/* we can deal with the case the UARTs are being run - * in FIFO mode, so that we don't hold up our execution - * waiting for tx to happen... -*/ - -static void putc(int ch) -{ - if (uart_rd(S3C2410_UFCON) & S3C2410_UFCON_FIFOMODE) { - int level; - - while (1) { - level = uart_rd(S3C2410_UFSTAT); - level &= fifo_mask; - - if (level < fifo_max) - break; - } - - } else { - /* not using fifos */ - - while ((uart_rd(S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE) != S3C2410_UTRSTAT_TXE) - barrier(); - } - - /* write byte to transmission register */ - uart_wr(S3C2410_UTXH, ch); -} - -static inline void flush(void) -{ -} - -#define __raw_writel(d,ad) do { *((volatile unsigned int *)(ad)) = (d); } while(0) - -/* CONFIG_S3C_BOOT_WATCHDOG - * - * Simple boot-time watchdog setup, to reboot the system if there is - * any problem with the boot process -*/ - -#ifdef CONFIG_S3C_BOOT_WATCHDOG - -#define WDOG_COUNT (0xff00) - -static inline void arch_decomp_wdog(void) -{ - __raw_writel(WDOG_COUNT, S3C2410_WTCNT); -} - -static void arch_decomp_wdog_start(void) -{ - __raw_writel(WDOG_COUNT, S3C2410_WTDAT); - __raw_writel(WDOG_COUNT, S3C2410_WTCNT); - __raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x80), S3C2410_WTCON); -} - -#else -#define arch_decomp_wdog_start() -#define arch_decomp_wdog() -#endif - -#ifdef CONFIG_S3C_BOOT_ERROR_RESET - -static void arch_decomp_error(const char *x) -{ - putstr("\n\n"); - putstr(x); - putstr("\n\n -- System resetting\n"); - - __raw_writel(0x4000, S3C2410_WTDAT); - __raw_writel(0x4000, S3C2410_WTCNT); - __raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x40), S3C2410_WTCON); - - while(1); -} - -#define arch_error arch_decomp_error -#endif - -static void error(char *err); - -static void -arch_decomp_setup(void) -{ - /* we may need to setup the uart(s) here if we are not running - * on an BAST... the BAST will have left the uarts configured - * after calling linux. - */ - - arch_detect_cpu(); - arch_decomp_wdog_start(); -} - - -#endif /* __ASM_PLAT_UNCOMPRESS_H */ diff --git a/include/asm-arm/plat-s3c24xx/clock.h b/include/asm-arm/plat-s3c24xx/clock.h deleted file mode 100644 index 235b753cd877..000000000000 --- a/include/asm-arm/plat-s3c24xx/clock.h +++ /dev/null @@ -1,64 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/clock.h - * linux/arch/arm/mach-s3c2410/clock.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * http://www.simtec.co.uk/products/SWLINUX/ - * Written by Ben Dooks, - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -struct clk { - struct list_head list; - struct module *owner; - struct clk *parent; - const char *name; - int id; - int usage; - unsigned long rate; - unsigned long ctrlbit; - - int (*enable)(struct clk *, int enable); - int (*set_rate)(struct clk *c, unsigned long rate); - unsigned long (*get_rate)(struct clk *c); - unsigned long (*round_rate)(struct clk *c, unsigned long rate); - int (*set_parent)(struct clk *c, struct clk *parent); -}; - -/* other clocks which may be registered by board support */ - -extern struct clk s3c24xx_dclk0; -extern struct clk s3c24xx_dclk1; -extern struct clk s3c24xx_clkout0; -extern struct clk s3c24xx_clkout1; -extern struct clk s3c24xx_uclk; - -extern struct clk clk_usb_bus; - -/* core clock support */ - -extern struct clk clk_f; -extern struct clk clk_h; -extern struct clk clk_p; -extern struct clk clk_mpll; -extern struct clk clk_upll; -extern struct clk clk_xtal; - -/* exports for arch/arm/mach-s3c2410 - * - * Please DO NOT use these outside of arch/arm/mach-s3c2410 -*/ - -extern struct mutex clocks_mutex; - -extern int s3c2410_clkcon_enable(struct clk *clk, int enable); - -extern int s3c24xx_register_clock(struct clk *clk); -extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks); - -extern int s3c24xx_setup_clocks(unsigned long xtal, - unsigned long fclk, - unsigned long hclk, - unsigned long pclk); diff --git a/include/asm-arm/plat-s3c24xx/common-smdk.h b/include/asm-arm/plat-s3c24xx/common-smdk.h deleted file mode 100644 index 58d9094c935c..000000000000 --- a/include/asm-arm/plat-s3c24xx/common-smdk.h +++ /dev/null @@ -1,15 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/common-smdk.h - * - * Copyright (c) 2006 Simtec Electronics - * Ben Dooks - * - * Common code for SMDK2410 and SMDK2440 boards - * - * http://www.fluff.org/ben/smdk2440/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -extern void smdk_machine_init(void); diff --git a/include/asm-arm/plat-s3c24xx/dma.h b/include/asm-arm/plat-s3c24xx/dma.h deleted file mode 100644 index c78efe316fc8..000000000000 --- a/include/asm-arm/plat-s3c24xx/dma.h +++ /dev/null @@ -1,82 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/dma.h - * - * Copyright (C) 2006 Simtec Electronics - * Ben Dooks - * - * Samsung S3C24XX DMA support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -extern struct sysdev_class dma_sysclass; -extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; - -#define DMA_CH_VALID (1<<31) -#define DMA_CH_NEVER (1<<30) - -struct s3c24xx_dma_addr { - unsigned long from; - unsigned long to; -}; - -/* struct s3c24xx_dma_map - * - * this holds the mapping information for the channel selected - * to be connected to the specified device -*/ - -struct s3c24xx_dma_map { - const char *name; - struct s3c24xx_dma_addr hw_addr; - - unsigned long channels[S3C2410_DMA_CHANNELS]; - unsigned long channels_rx[S3C2410_DMA_CHANNELS]; -}; - -struct s3c24xx_dma_selection { - struct s3c24xx_dma_map *map; - unsigned long map_size; - unsigned long dcon_mask; - - void (*select)(struct s3c2410_dma_chan *chan, - struct s3c24xx_dma_map *map); - - void (*direction)(struct s3c2410_dma_chan *chan, - struct s3c24xx_dma_map *map, - enum s3c2410_dmasrc dir); -}; - -extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); - -/* struct s3c24xx_dma_order_ch - * - * channel map for one of the `enum dma_ch` dma channels. the list - * entry contains a set of low-level channel numbers, orred with - * DMA_CH_VALID, which are checked in the order in the array. -*/ - -struct s3c24xx_dma_order_ch { - unsigned int list[S3C2410_DMA_CHANNELS]; /* list of channels */ - unsigned int flags; /* flags */ -}; - -/* struct s3c24xx_dma_order - * - * information provided by either the core or the board to give the - * dma system a hint on how to allocate channels -*/ - -struct s3c24xx_dma_order { - struct s3c24xx_dma_order_ch channels[DMACH_MAX]; -}; - -extern int s3c24xx_dma_order_set(struct s3c24xx_dma_order *map); - -/* DMA init code, called from the cpu support code */ - -extern int s3c2410_dma_init(void); - -extern int s3c24xx_dma_init(unsigned int channels, unsigned int irq, - unsigned int stride); diff --git a/include/asm-arm/plat-s3c24xx/s3c2412.h b/include/asm-arm/plat-s3c24xx/s3c2412.h deleted file mode 100644 index 3ec97685e781..000000000000 --- a/include/asm-arm/plat-s3c24xx/s3c2412.h +++ /dev/null @@ -1,29 +0,0 @@ -/* linux/include/asm-arm/plat-s3c24xx/s3c2412.h - * - * Copyright (c) 2006 Simtec Electronics - * Ben Dooks - * - * Header file for s3c2412 cpu support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifdef CONFIG_CPU_S3C2412 - -extern int s3c2412_init(void); - -extern void s3c2412_map_io(struct map_desc *mach_desc, int size); - -extern void s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no); - -extern void s3c2412_init_clocks(int xtal); - -extern int s3c2412_baseclk_add(void); -#else -#define s3c2412_init_clocks NULL -#define s3c2412_init_uarts NULL -#define s3c2412_map_io NULL -#define s3c2412_init NULL -#endif -- cgit v1.2.1 From 9fa8d66f1e55bf197568c8c689043c2aad1ffc97 Mon Sep 17 00:00:00 2001 From: Richard Kennedy Date: Tue, 26 Aug 2008 16:23:20 +0100 Subject: NFS: remove 8 bytes of padding from struct nfs_fattr on 64 bit builds remove 8 bytes of padding from struct nfs_fattr on 64 bit builds This also removes padding from several nfs structures, including 16 bytes from nfs4_opendata, nfs4_createdata,nfs3_createdata & 8 bytes from nfs_read_data,nfs_write_data,nfs_removeres,nfs4_closedata This also reduces the reported stack usage of many nfs functions (30+). Signed-off-by: Richard Kennedy ---- This patch is against the latest git 2.6.27-rc4. I've built & run this on my AMD64 desktop, & successfully run _simple_ tests with a 64 bit client => 32 bit server & 32 bit client to 64 bit server. On fedora with gcc (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8) checkpatch reports 33 functions with reduced stack usage. e.g. __nfs_revalidate_inode [nfs] 216 => 200 _nfs4_proc_access [nfs] 304 => 288 _nfs4_proc_link [nfs] 536 => 504 _nfs4_proc_remove [nfs] 304 => 288 _nfs4_proc_rename [nfs] 584 => 552 nfs3_proc_access [nfs] 272 => 256 nfs3_proc_getacl [nfs] 384 => 368 nfs3_proc_link [nfs] 496 => 464 etc I can supply the complete list if anyone is interested. regards Richard Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 8c77c11224d1..9cabbb3a9e6d 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -36,6 +36,7 @@ struct nfs_fattr { __u32 nlink; __u32 uid; __u32 gid; + dev_t rdev; __u64 size; union { struct { @@ -46,7 +47,6 @@ struct nfs_fattr { __u64 used; } nfs3; } du; - dev_t rdev; struct nfs_fsid fsid; __u64 fileid; struct timespec atime; -- cgit v1.2.1 From d1ce02e1689dff9d413138f60a79b4e3affb4708 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Thu, 25 Sep 2008 11:57:12 -0400 Subject: NFS: SETCLIENTID truncates client ID and netid The sc_name field is currently 56 bytes long. This is not large enough to hold a pair of IPv6 addresses, the authentication type, the protocol name, and a uniquifier number. The maximum possible size of the name string using IPv6 addresses is just under 110 bytes, so I increased the size of the sc_name field to accomodate this maximum. In addition, the strings in the nfs4_setclientid structure are constructed with scnprintf(), which wants to terminate its output with '\0'. The sc_netid field was large enough only for a three byte netid string and a '\0' so inet6 netids were being truncated. Perhaps we don't need the overhead of scnprintf() to do a simple string copy, but I fixed this by increasing the size of the buffer by one byte. Since all three of the string buffers in nfs4_setclientid are constructed with scnprintf(), I increased the size of all three by one byte to document the requirement, although I don't think either the universal address field or the name field will be so small that these strings get truncated in this way. The size of the Linux client's client ID on the wire will be larger than before. RFC 3530 suggests the size limit for client IDs is 1024, and we are still well below that. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 9cabbb3a9e6d..f6e95bfad5de 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -672,16 +672,16 @@ struct nfs4_rename_res { struct nfs_fattr * new_fattr; }; -#define NFS4_SETCLIENTID_NAMELEN (56) +#define NFS4_SETCLIENTID_NAMELEN (128) struct nfs4_setclientid { const nfs4_verifier * sc_verifier; unsigned int sc_name_len; - char sc_name[NFS4_SETCLIENTID_NAMELEN]; + char sc_name[NFS4_SETCLIENTID_NAMELEN + 1]; u32 sc_prog; unsigned int sc_netid_len; - char sc_netid[RPCBIND_MAXNETIDLEN]; + char sc_netid[RPCBIND_MAXNETIDLEN + 1]; unsigned int sc_uaddr_len; - char sc_uaddr[RPCBIND_MAXUADDRLEN]; + char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; u32 sc_cb_ident; }; -- cgit v1.2.1 From 19d771f3caccaf66ce2fb539319222139e5b4e88 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 8 Oct 2008 13:54:52 -0400 Subject: NFS: Save padding bytes in struct nfs4_setclientid Peter Staubach suggested reducing NFS4_SETCLIENTID_NAMELEN by one byte so as to avoid 7 bytes of unnecessary padding. Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index f6e95bfad5de..6ee6ae3f095c 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -672,7 +672,7 @@ struct nfs4_rename_res { struct nfs_fattr * new_fattr; }; -#define NFS4_SETCLIENTID_NAMELEN (128) +#define NFS4_SETCLIENTID_NAMELEN (127) struct nfs4_setclientid { const nfs4_verifier * sc_verifier; unsigned int sc_name_len; -- cgit v1.2.1 From 40b10fc58a62a9698f4fa1916e61b0953139928a Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 28 Jul 2008 16:22:34 -0400 Subject: parisc: ropes.h - fix -> --- include/asm-parisc/ropes.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-parisc/ropes.h b/include/asm-parisc/ropes.h index 007a880615eb..09f51d5ab57c 100644 --- a/include/asm-parisc/ropes.h +++ b/include/asm-parisc/ropes.h @@ -1,7 +1,7 @@ #ifndef _ASM_PARISC_ROPES_H_ #define _ASM_PARISC_ROPES_H_ -#include +#include #ifdef CONFIG_64BIT /* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */ -- cgit v1.2.1 From 6c86cb8237bf08443806089130dc108051569a93 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 28 Jul 2008 22:52:18 -0400 Subject: parisc: move pdc_result to real2.S --- include/asm-parisc/pdc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h index 9eaa794c3e4a..46b75f9cce51 100644 --- a/include/asm-parisc/pdc.h +++ b/include/asm-parisc/pdc.h @@ -332,6 +332,9 @@ #define BOOT_CONSOLE_SPA_OFFSET 0x3c4 #define BOOT_CONSOLE_PATH_OFFSET 0x3a8 +/* size of the pdc_result buffer for firmware.c */ +#define NUM_PDC_RESULT 32 + #if !defined(__ASSEMBLY__) #ifdef __KERNEL__ -- cgit v1.2.1 From deae26bf6a10e47983606f5df080b91e97650ead Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 28 Jul 2008 23:02:13 -0400 Subject: parisc: move include/asm-parisc to arch/parisc/include/asm --- include/asm-parisc/Kbuild | 3 - include/asm-parisc/a.out.h | 20 - include/asm-parisc/agp.h | 24 - include/asm-parisc/asmregs.h | 183 ------ include/asm-parisc/assembly.h | 519 ----------------- include/asm-parisc/atomic.h | 348 ----------- include/asm-parisc/auxvec.h | 4 - include/asm-parisc/bitops.h | 239 -------- include/asm-parisc/bug.h | 92 --- include/asm-parisc/bugs.h | 19 - include/asm-parisc/byteorder.h | 82 --- include/asm-parisc/cache.h | 60 -- include/asm-parisc/cacheflush.h | 121 ---- include/asm-parisc/checksum.h | 210 ------- include/asm-parisc/compat.h | 165 ------ include/asm-parisc/compat_rt_sigframe.h | 50 -- include/asm-parisc/compat_signal.h | 2 - include/asm-parisc/compat_ucontext.h | 17 - include/asm-parisc/cputime.h | 6 - include/asm-parisc/current.h | 15 - include/asm-parisc/delay.h | 43 -- include/asm-parisc/device.h | 7 - include/asm-parisc/div64.h | 1 - include/asm-parisc/dma-mapping.h | 253 -------- include/asm-parisc/dma.h | 186 ------ include/asm-parisc/eisa_bus.h | 23 - include/asm-parisc/eisa_eeprom.h | 153 ----- include/asm-parisc/elf.h | 342 ----------- include/asm-parisc/emergency-restart.h | 6 - include/asm-parisc/errno.h | 124 ---- include/asm-parisc/fb.h | 19 - include/asm-parisc/fcntl.h | 39 -- include/asm-parisc/fixmap.h | 30 - include/asm-parisc/floppy.h | 271 --------- include/asm-parisc/futex.h | 77 --- include/asm-parisc/grfioctl.h | 113 ---- include/asm-parisc/hardirq.h | 29 - include/asm-parisc/hardware.h | 127 ---- include/asm-parisc/hw_irq.h | 8 - include/asm-parisc/ide.h | 61 -- include/asm-parisc/io.h | 293 ---------- include/asm-parisc/ioctl.h | 44 -- include/asm-parisc/ioctls.h | 90 --- include/asm-parisc/ipcbuf.h | 27 - include/asm-parisc/irq.h | 57 -- include/asm-parisc/irq_regs.h | 1 - include/asm-parisc/kdebug.h | 1 - include/asm-parisc/kmap_types.h | 30 - include/asm-parisc/led.h | 42 -- include/asm-parisc/linkage.h | 31 - include/asm-parisc/local.h | 1 - include/asm-parisc/machdep.h | 16 - include/asm-parisc/mc146818rtc.h | 9 - include/asm-parisc/mckinley.h | 9 - include/asm-parisc/mman.h | 61 -- include/asm-parisc/mmu.h | 7 - include/asm-parisc/mmu_context.h | 75 --- include/asm-parisc/mmzone.h | 73 --- include/asm-parisc/module.h | 32 -- include/asm-parisc/msgbuf.h | 37 -- include/asm-parisc/mutex.h | 9 - include/asm-parisc/page.h | 173 ------ include/asm-parisc/param.h | 22 - include/asm-parisc/parisc-device.h | 64 --- include/asm-parisc/parport.h | 18 - include/asm-parisc/pci.h | 294 ---------- include/asm-parisc/pdc.h | 760 ------------------------ include/asm-parisc/pdc_chassis.h | 381 ------------ include/asm-parisc/pdcpat.h | 308 ---------- include/asm-parisc/percpu.h | 7 - include/asm-parisc/perf.h | 74 --- include/asm-parisc/pgalloc.h | 149 ----- include/asm-parisc/pgtable.h | 508 ---------------- include/asm-parisc/poll.h | 1 - include/asm-parisc/posix_types.h | 129 ----- include/asm-parisc/prefetch.h | 39 -- include/asm-parisc/processor.h | 357 ------------ include/asm-parisc/psw.h | 62 -- include/asm-parisc/ptrace.h | 58 -- include/asm-parisc/real.h | 5 - include/asm-parisc/resource.h | 7 - include/asm-parisc/ropes.h | 322 ----------- include/asm-parisc/rt_sigframe.h | 23 - include/asm-parisc/rtc.h | 131 ----- include/asm-parisc/runway.h | 12 - include/asm-parisc/scatterlist.h | 27 - include/asm-parisc/sections.h | 12 - include/asm-parisc/segment.h | 6 - include/asm-parisc/sembuf.h | 29 - include/asm-parisc/serial.h | 10 - include/asm-parisc/setup.h | 6 - include/asm-parisc/shmbuf.h | 58 -- include/asm-parisc/shmparam.h | 8 - include/asm-parisc/sigcontext.h | 20 - include/asm-parisc/siginfo.h | 14 - include/asm-parisc/signal.h | 153 ----- include/asm-parisc/smp.h | 68 --- include/asm-parisc/socket.h | 62 -- include/asm-parisc/sockios.h | 13 - include/asm-parisc/spinlock.h | 194 ------- include/asm-parisc/spinlock_types.h | 21 - include/asm-parisc/stat.h | 100 ---- include/asm-parisc/statfs.h | 58 -- include/asm-parisc/string.h | 10 - include/asm-parisc/superio.h | 85 --- include/asm-parisc/system.h | 182 ------ include/asm-parisc/termbits.h | 200 ------- include/asm-parisc/termios.h | 90 --- include/asm-parisc/thread_info.h | 74 --- include/asm-parisc/timex.h | 20 - include/asm-parisc/tlb.h | 27 - include/asm-parisc/tlbflush.h | 80 --- include/asm-parisc/topology.h | 6 - include/asm-parisc/traps.h | 16 - include/asm-parisc/types.h | 36 -- include/asm-parisc/uaccess.h | 244 -------- include/asm-parisc/ucontext.h | 12 - include/asm-parisc/unaligned.h | 16 - include/asm-parisc/unistd.h | 991 -------------------------------- include/asm-parisc/unwind.h | 77 --- include/asm-parisc/user.h | 5 - include/asm-parisc/vga.h | 6 - include/asm-parisc/xor.h | 1 - 123 files changed, 11977 deletions(-) delete mode 100644 include/asm-parisc/Kbuild delete mode 100644 include/asm-parisc/a.out.h delete mode 100644 include/asm-parisc/agp.h delete mode 100644 include/asm-parisc/asmregs.h delete mode 100644 include/asm-parisc/assembly.h delete mode 100644 include/asm-parisc/atomic.h delete mode 100644 include/asm-parisc/auxvec.h delete mode 100644 include/asm-parisc/bitops.h delete mode 100644 include/asm-parisc/bug.h delete mode 100644 include/asm-parisc/bugs.h delete mode 100644 include/asm-parisc/byteorder.h delete mode 100644 include/asm-parisc/cache.h delete mode 100644 include/asm-parisc/cacheflush.h delete mode 100644 include/asm-parisc/checksum.h delete mode 100644 include/asm-parisc/compat.h delete mode 100644 include/asm-parisc/compat_rt_sigframe.h delete mode 100644 include/asm-parisc/compat_signal.h delete mode 100644 include/asm-parisc/compat_ucontext.h delete mode 100644 include/asm-parisc/cputime.h delete mode 100644 include/asm-parisc/current.h delete mode 100644 include/asm-parisc/delay.h delete mode 100644 include/asm-parisc/device.h delete mode 100644 include/asm-parisc/div64.h delete mode 100644 include/asm-parisc/dma-mapping.h delete mode 100644 include/asm-parisc/dma.h delete mode 100644 include/asm-parisc/eisa_bus.h delete mode 100644 include/asm-parisc/eisa_eeprom.h delete mode 100644 include/asm-parisc/elf.h delete mode 100644 include/asm-parisc/emergency-restart.h delete mode 100644 include/asm-parisc/errno.h delete mode 100644 include/asm-parisc/fb.h delete mode 100644 include/asm-parisc/fcntl.h delete mode 100644 include/asm-parisc/fixmap.h delete mode 100644 include/asm-parisc/floppy.h delete mode 100644 include/asm-parisc/futex.h delete mode 100644 include/asm-parisc/grfioctl.h delete mode 100644 include/asm-parisc/hardirq.h delete mode 100644 include/asm-parisc/hardware.h delete mode 100644 include/asm-parisc/hw_irq.h delete mode 100644 include/asm-parisc/ide.h delete mode 100644 include/asm-parisc/io.h delete mode 100644 include/asm-parisc/ioctl.h delete mode 100644 include/asm-parisc/ioctls.h delete 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-1,3 +0,0 @@ -include include/asm-generic/Kbuild.asm - -unifdef-y += pdc.h diff --git a/include/asm-parisc/a.out.h b/include/asm-parisc/a.out.h deleted file mode 100644 index eb04e34c5bb1..000000000000 --- a/include/asm-parisc/a.out.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef __PARISC_A_OUT_H__ -#define __PARISC_A_OUT_H__ - -struct exec -{ - unsigned int a_info; /* Use macros N_MAGIC, etc for access */ - unsigned a_text; /* length of text, in bytes */ - unsigned a_data; /* length of data, in bytes */ - unsigned a_bss; /* length of uninitialized data area for file, in bytes */ - unsigned a_syms; /* length of symbol table data in file, in bytes */ - unsigned a_entry; /* start address */ - unsigned a_trsize; /* length of relocation info for text, in bytes */ - unsigned a_drsize; /* length of relocation info for data, in bytes */ -}; - -#define N_TRSIZE(a) ((a).a_trsize) -#define N_DRSIZE(a) ((a).a_drsize) -#define N_SYMSIZE(a) ((a).a_syms) - -#endif /* __A_OUT_GNU_H__ */ diff --git a/include/asm-parisc/agp.h b/include/asm-parisc/agp.h deleted file mode 100644 index 9651660da639..000000000000 --- a/include/asm-parisc/agp.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef _ASM_PARISC_AGP_H -#define _ASM_PARISC_AGP_H - -/* - * PARISC specific AGP definitions. - * Copyright (c) 2006 Kyle McMartin - * - */ - -#define map_page_into_agp(page) /* nothing */ -#define unmap_page_from_agp(page) /* nothing */ -#define flush_agp_cache() mb() - -/* Convert a physical address to an address suitable for the GART. */ -#define phys_to_gart(x) (x) -#define gart_to_phys(x) (x) - -/* GATT allocation. Returns/accepts GATT kernel virtual address. */ -#define alloc_gatt_pages(order) \ - ((char *)__get_free_pages(GFP_KERNEL, (order))) -#define free_gatt_pages(table, order) \ - free_pages((unsigned long)(table), (order)) - -#endif /* _ASM_PARISC_AGP_H */ diff --git a/include/asm-parisc/asmregs.h b/include/asm-parisc/asmregs.h deleted file mode 100644 index d93c646e1887..000000000000 --- a/include/asm-parisc/asmregs.h +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright (C) 1999 Hewlett-Packard (Frank Rowand) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef _PARISC_ASMREGS_H -#define _PARISC_ASMREGS_H - -;! General Registers - -rp: .reg %r2 -arg3: .reg %r23 -arg2: .reg %r24 -arg1: .reg %r25 -arg0: .reg %r26 -dp: .reg %r27 -ret0: .reg %r28 -ret1: .reg %r29 -sl: .reg %r29 -sp: .reg %r30 - -#if 0 -/* PA20_REVISIT */ -arg7: .reg r19 -arg6: .reg r20 -arg5: .reg r21 -arg4: .reg r22 -gp: .reg r27 -ap: .reg r29 -#endif - - -r0: .reg %r0 -r1: .reg %r1 -r2: .reg %r2 -r3: .reg %r3 -r4: .reg %r4 -r5: .reg %r5 -r6: .reg %r6 -r7: .reg %r7 -r8: .reg %r8 -r9: .reg %r9 -r10: .reg %r10 -r11: .reg %r11 -r12: .reg %r12 -r13: .reg %r13 -r14: .reg %r14 -r15: .reg %r15 -r16: .reg %r16 -r17: .reg %r17 -r18: .reg %r18 -r19: .reg %r19 -r20: .reg %r20 -r21: .reg %r21 -r22: .reg %r22 -r23: .reg %r23 -r24: .reg %r24 -r25: .reg %r25 -r26: .reg %r26 -r27: .reg %r27 -r28: .reg %r28 -r29: .reg %r29 -r30: .reg %r30 -r31: .reg %r31 - - -;! Space Registers - -sr0: .reg %sr0 -sr1: .reg %sr1 -sr2: .reg %sr2 -sr3: .reg %sr3 -sr4: .reg %sr4 -sr5: .reg %sr5 -sr6: .reg %sr6 -sr7: .reg %sr7 - - -;! Floating Point Registers - -fr0: .reg %fr0 -fr1: .reg %fr1 -fr2: .reg %fr2 -fr3: .reg %fr3 -fr4: .reg %fr4 -fr5: .reg %fr5 -fr6: .reg %fr6 -fr7: .reg %fr7 -fr8: .reg %fr8 -fr9: .reg %fr9 -fr10: .reg %fr10 -fr11: .reg %fr11 -fr12: .reg %fr12 -fr13: .reg %fr13 -fr14: .reg %fr14 -fr15: .reg %fr15 -fr16: .reg %fr16 -fr17: .reg %fr17 -fr18: .reg %fr18 -fr19: .reg %fr19 -fr20: .reg %fr20 -fr21: .reg %fr21 -fr22: .reg %fr22 -fr23: .reg %fr23 -fr24: .reg %fr24 -fr25: .reg %fr25 -fr26: .reg %fr26 -fr27: .reg %fr27 -fr28: .reg %fr28 -fr29: .reg %fr29 -fr30: .reg %fr30 -fr31: .reg %fr31 - - -;! Control Registers - -rctr: .reg %cr0 -pidr1: .reg %cr8 -pidr2: .reg %cr9 -ccr: .reg %cr10 -sar: .reg %cr11 -pidr3: .reg %cr12 -pidr4: .reg %cr13 -iva: .reg %cr14 -eiem: .reg %cr15 -itmr: .reg %cr16 -pcsq: .reg %cr17 -pcoq: .reg %cr18 -iir: .reg %cr19 -isr: .reg %cr20 -ior: .reg %cr21 -ipsw: .reg %cr22 -eirr: .reg %cr23 -tr0: .reg %cr24 -tr1: .reg %cr25 -tr2: .reg %cr26 -tr3: .reg %cr27 -tr4: .reg %cr28 -tr5: .reg %cr29 -tr6: .reg %cr30 -tr7: .reg %cr31 - - -cr0: .reg %cr0 -cr8: .reg %cr8 -cr9: .reg %cr9 -cr10: .reg %cr10 -cr11: .reg %cr11 -cr12: .reg %cr12 -cr13: .reg %cr13 -cr14: .reg %cr14 -cr15: .reg %cr15 -cr16: .reg %cr16 -cr17: .reg %cr17 -cr18: .reg %cr18 -cr19: .reg %cr19 -cr20: .reg %cr20 -cr21: .reg %cr21 -cr22: .reg %cr22 -cr23: .reg %cr23 -cr24: .reg %cr24 -cr25: .reg %cr25 -cr26: .reg %cr26 -cr27: .reg %cr27 -cr28: .reg %cr28 -cr29: .reg %cr29 -cr30: .reg %cr30 -cr31: .reg %cr31 - -#endif diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h deleted file mode 100644 index ffb208840ecc..000000000000 --- a/include/asm-parisc/assembly.h +++ /dev/null @@ -1,519 +0,0 @@ -/* - * Copyright (C) 1999 Hewlett-Packard (Frank Rowand) - * Copyright (C) 1999 Philipp Rumpf - * Copyright (C) 1999 SuSE GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef _PARISC_ASSEMBLY_H -#define _PARISC_ASSEMBLY_H - -#define CALLEE_FLOAT_FRAME_SIZE 80 - -#ifdef CONFIG_64BIT -#define LDREG ldd -#define STREG std -#define LDREGX ldd,s -#define LDREGM ldd,mb -#define STREGM std,ma -#define SHRREG shrd -#define SHLREG shld -#define ANDCM andcm,* -#define COND(x) * ## x -#define RP_OFFSET 16 -#define FRAME_SIZE 128 -#define CALLEE_REG_FRAME_SIZE 144 -#define ASM_ULONG_INSN .dword -#else /* CONFIG_64BIT */ -#define LDREG ldw -#define STREG stw -#define LDREGX ldwx,s -#define LDREGM ldwm -#define STREGM stwm -#define SHRREG shr -#define SHLREG shlw -#define ANDCM andcm -#define COND(x) x -#define RP_OFFSET 20 -#define FRAME_SIZE 64 -#define CALLEE_REG_FRAME_SIZE 128 -#define ASM_ULONG_INSN .word -#endif - -#define CALLEE_SAVE_FRAME_SIZE (CALLEE_REG_FRAME_SIZE + CALLEE_FLOAT_FRAME_SIZE) - -#ifdef CONFIG_PA20 -#define LDCW ldcw,co -#define BL b,l -# ifdef CONFIG_64BIT -# define LEVEL 2.0w -# else -# define LEVEL 2.0 -# endif -#else -#define LDCW ldcw -#define BL bl -#define LEVEL 1.1 -#endif - -#ifdef __ASSEMBLY__ - -#ifdef CONFIG_64BIT -/* the 64-bit pa gnu assembler unfortunately defaults to .level 1.1 or 2.0 so - * work around that for now... */ - .level 2.0w -#endif - -#include -#include - -#include - - sp = 30 - gp = 27 - ipsw = 22 - - /* - * We provide two versions of each macro to convert from physical - * to virtual and vice versa. The "_r1" versions take one argument - * register, but trashes r1 to do the conversion. The other - * version takes two arguments: a src and destination register. - * However, the source and destination registers can not be - * the same register. - */ - - .macro tophys grvirt, grphys - ldil L%(__PAGE_OFFSET), \grphys - sub \grvirt, \grphys, \grphys - .endm - - .macro tovirt grphys, grvirt - ldil L%(__PAGE_OFFSET), \grvirt - add \grphys, \grvirt, \grvirt - .endm - - .macro tophys_r1 gr - ldil L%(__PAGE_OFFSET), %r1 - sub \gr, %r1, \gr - .endm - - .macro tovirt_r1 gr - ldil L%(__PAGE_OFFSET), %r1 - add \gr, %r1, \gr - .endm - - .macro delay value - ldil L%\value, 1 - ldo R%\value(1), 1 - addib,UV,n -1,1,. - addib,NUV,n -1,1,.+8 - nop - .endm - - .macro debug value - .endm - - - /* Shift Left - note the r and t can NOT be the same! */ - .macro shl r, sa, t - dep,z \r, 31-\sa, 32-\sa, \t - .endm - - /* The PA 2.0 shift left */ - .macro shlw r, sa, t - depw,z \r, 31-\sa, 32-\sa, \t - .endm - - /* And the PA 2.0W shift left */ - .macro shld r, sa, t - depd,z \r, 63-\sa, 64-\sa, \t - .endm - - /* Shift Right - note the r and t can NOT be the same! */ - .macro shr r, sa, t - extru \r, 31-\sa, 32-\sa, \t - .endm - - /* pa20w version of shift right */ - .macro shrd r, sa, t - extrd,u \r, 63-\sa, 64-\sa, \t - .endm - - /* load 32-bit 'value' into 'reg' compensating for the ldil - * sign-extension when running in wide mode. - * WARNING!! neither 'value' nor 'reg' can be expressions - * containing '.'!!!! */ - .macro load32 value, reg - ldil L%\value, \reg - ldo R%\value(\reg), \reg - .endm - - .macro loadgp -#ifdef CONFIG_64BIT - ldil L%__gp, %r27 - ldo R%__gp(%r27), %r27 -#else - ldil L%$global$, %r27 - ldo R%$global$(%r27), %r27 -#endif - .endm - -#define SAVE_SP(r, where) mfsp r, %r1 ! STREG %r1, where -#define REST_SP(r, where) LDREG where, %r1 ! mtsp %r1, r -#define SAVE_CR(r, where) mfctl r, %r1 ! STREG %r1, where -#define REST_CR(r, where) LDREG where, %r1 ! mtctl %r1, r - - .macro save_general regs - STREG %r1, PT_GR1 (\regs) - STREG %r2, PT_GR2 (\regs) - STREG %r3, PT_GR3 (\regs) - STREG %r4, PT_GR4 (\regs) - STREG %r5, PT_GR5 (\regs) - STREG %r6, PT_GR6 (\regs) - STREG %r7, PT_GR7 (\regs) - STREG %r8, PT_GR8 (\regs) - STREG %r9, PT_GR9 (\regs) - STREG %r10, PT_GR10(\regs) - STREG %r11, PT_GR11(\regs) - STREG %r12, PT_GR12(\regs) - STREG %r13, PT_GR13(\regs) - STREG %r14, PT_GR14(\regs) - STREG %r15, PT_GR15(\regs) - STREG %r16, PT_GR16(\regs) - STREG %r17, PT_GR17(\regs) - STREG %r18, PT_GR18(\regs) - STREG %r19, PT_GR19(\regs) - STREG %r20, PT_GR20(\regs) - STREG %r21, PT_GR21(\regs) - STREG %r22, PT_GR22(\regs) - STREG %r23, PT_GR23(\regs) - STREG %r24, PT_GR24(\regs) - STREG %r25, PT_GR25(\regs) - /* r26 is saved in get_stack and used to preserve a value across virt_map */ - STREG %r27, PT_GR27(\regs) - STREG %r28, PT_GR28(\regs) - /* r29 is saved in get_stack and used to point to saved registers */ - /* r30 stack pointer saved in get_stack */ - STREG %r31, PT_GR31(\regs) - .endm - - .macro rest_general regs - /* r1 used as a temp in rest_stack and is restored there */ - LDREG PT_GR2 (\regs), %r2 - LDREG PT_GR3 (\regs), %r3 - LDREG PT_GR4 (\regs), %r4 - LDREG PT_GR5 (\regs), %r5 - LDREG PT_GR6 (\regs), %r6 - LDREG PT_GR7 (\regs), %r7 - LDREG PT_GR8 (\regs), %r8 - LDREG PT_GR9 (\regs), %r9 - LDREG PT_GR10(\regs), %r10 - LDREG PT_GR11(\regs), %r11 - LDREG PT_GR12(\regs), %r12 - LDREG PT_GR13(\regs), %r13 - LDREG PT_GR14(\regs), %r14 - LDREG PT_GR15(\regs), %r15 - LDREG PT_GR16(\regs), %r16 - LDREG PT_GR17(\regs), %r17 - LDREG PT_GR18(\regs), %r18 - LDREG PT_GR19(\regs), %r19 - LDREG PT_GR20(\regs), %r20 - LDREG PT_GR21(\regs), %r21 - LDREG PT_GR22(\regs), %r22 - LDREG PT_GR23(\regs), %r23 - LDREG PT_GR24(\regs), %r24 - LDREG PT_GR25(\regs), %r25 - LDREG PT_GR26(\regs), %r26 - LDREG PT_GR27(\regs), %r27 - LDREG PT_GR28(\regs), %r28 - /* r29 points to register save area, and is restored in rest_stack */ - /* r30 stack pointer restored in rest_stack */ - LDREG PT_GR31(\regs), %r31 - .endm - - .macro save_fp regs - fstd,ma %fr0, 8(\regs) - fstd,ma %fr1, 8(\regs) - fstd,ma %fr2, 8(\regs) - fstd,ma %fr3, 8(\regs) - fstd,ma %fr4, 8(\regs) - fstd,ma %fr5, 8(\regs) - fstd,ma %fr6, 8(\regs) - fstd,ma %fr7, 8(\regs) - fstd,ma %fr8, 8(\regs) - fstd,ma %fr9, 8(\regs) - fstd,ma %fr10, 8(\regs) - fstd,ma %fr11, 8(\regs) - fstd,ma %fr12, 8(\regs) - fstd,ma %fr13, 8(\regs) - fstd,ma %fr14, 8(\regs) - fstd,ma %fr15, 8(\regs) - fstd,ma %fr16, 8(\regs) - fstd,ma %fr17, 8(\regs) - fstd,ma %fr18, 8(\regs) - fstd,ma %fr19, 8(\regs) - fstd,ma %fr20, 8(\regs) - fstd,ma %fr21, 8(\regs) - fstd,ma %fr22, 8(\regs) - fstd,ma %fr23, 8(\regs) - fstd,ma %fr24, 8(\regs) - fstd,ma %fr25, 8(\regs) - fstd,ma %fr26, 8(\regs) - fstd,ma %fr27, 8(\regs) - fstd,ma %fr28, 8(\regs) - fstd,ma %fr29, 8(\regs) - fstd,ma %fr30, 8(\regs) - fstd %fr31, 0(\regs) - .endm - - .macro rest_fp regs - fldd 0(\regs), %fr31 - fldd,mb -8(\regs), %fr30 - fldd,mb -8(\regs), %fr29 - fldd,mb -8(\regs), %fr28 - fldd,mb -8(\regs), %fr27 - fldd,mb -8(\regs), %fr26 - fldd,mb -8(\regs), %fr25 - fldd,mb -8(\regs), %fr24 - fldd,mb -8(\regs), %fr23 - fldd,mb -8(\regs), %fr22 - fldd,mb -8(\regs), %fr21 - fldd,mb -8(\regs), %fr20 - fldd,mb -8(\regs), %fr19 - fldd,mb -8(\regs), %fr18 - fldd,mb -8(\regs), %fr17 - fldd,mb -8(\regs), %fr16 - fldd,mb -8(\regs), %fr15 - fldd,mb -8(\regs), %fr14 - fldd,mb -8(\regs), %fr13 - fldd,mb -8(\regs), %fr12 - fldd,mb -8(\regs), %fr11 - fldd,mb -8(\regs), %fr10 - fldd,mb -8(\regs), %fr9 - fldd,mb -8(\regs), %fr8 - fldd,mb -8(\regs), %fr7 - fldd,mb -8(\regs), %fr6 - fldd,mb -8(\regs), %fr5 - fldd,mb -8(\regs), %fr4 - fldd,mb -8(\regs), %fr3 - fldd,mb -8(\regs), %fr2 - fldd,mb -8(\regs), %fr1 - fldd,mb -8(\regs), %fr0 - .endm - - .macro callee_save_float - fstd,ma %fr12, 8(%r30) - fstd,ma %fr13, 8(%r30) - fstd,ma %fr14, 8(%r30) - fstd,ma %fr15, 8(%r30) - fstd,ma %fr16, 8(%r30) - fstd,ma %fr17, 8(%r30) - fstd,ma %fr18, 8(%r30) - fstd,ma %fr19, 8(%r30) - fstd,ma %fr20, 8(%r30) - fstd,ma %fr21, 8(%r30) - .endm - - .macro callee_rest_float - fldd,mb -8(%r30), %fr21 - fldd,mb -8(%r30), %fr20 - fldd,mb -8(%r30), %fr19 - fldd,mb -8(%r30), %fr18 - fldd,mb -8(%r30), %fr17 - fldd,mb -8(%r30), %fr16 - fldd,mb -8(%r30), %fr15 - fldd,mb -8(%r30), %fr14 - fldd,mb -8(%r30), %fr13 - fldd,mb -8(%r30), %fr12 - .endm - -#ifdef CONFIG_64BIT - .macro callee_save - std,ma %r3, CALLEE_REG_FRAME_SIZE(%r30) - mfctl %cr27, %r3 - std %r4, -136(%r30) - std %r5, -128(%r30) - std %r6, -120(%r30) - std %r7, -112(%r30) - std %r8, -104(%r30) - std %r9, -96(%r30) - std %r10, -88(%r30) - std %r11, -80(%r30) - std %r12, -72(%r30) - std %r13, -64(%r30) - std %r14, -56(%r30) - std %r15, -48(%r30) - std %r16, -40(%r30) - std %r17, -32(%r30) - std %r18, -24(%r30) - std %r3, -16(%r30) - .endm - - .macro callee_rest - ldd -16(%r30), %r3 - ldd -24(%r30), %r18 - ldd -32(%r30), %r17 - ldd -40(%r30), %r16 - ldd -48(%r30), %r15 - ldd -56(%r30), %r14 - ldd -64(%r30), %r13 - ldd -72(%r30), %r12 - ldd -80(%r30), %r11 - ldd -88(%r30), %r10 - ldd -96(%r30), %r9 - ldd -104(%r30), %r8 - ldd -112(%r30), %r7 - ldd -120(%r30), %r6 - ldd -128(%r30), %r5 - ldd -136(%r30), %r4 - mtctl %r3, %cr27 - ldd,mb -CALLEE_REG_FRAME_SIZE(%r30), %r3 - .endm - -#else /* ! CONFIG_64BIT */ - - .macro callee_save - stw,ma %r3, CALLEE_REG_FRAME_SIZE(%r30) - mfctl %cr27, %r3 - stw %r4, -124(%r30) - stw %r5, -120(%r30) - stw %r6, -116(%r30) - stw %r7, -112(%r30) - stw %r8, -108(%r30) - stw %r9, -104(%r30) - stw %r10, -100(%r30) - stw %r11, -96(%r30) - stw %r12, -92(%r30) - stw %r13, -88(%r30) - stw %r14, -84(%r30) - stw %r15, -80(%r30) - stw %r16, -76(%r30) - stw %r17, -72(%r30) - stw %r18, -68(%r30) - stw %r3, -64(%r30) - .endm - - .macro callee_rest - ldw -64(%r30), %r3 - ldw -68(%r30), %r18 - ldw -72(%r30), %r17 - ldw -76(%r30), %r16 - ldw -80(%r30), %r15 - ldw -84(%r30), %r14 - ldw -88(%r30), %r13 - ldw -92(%r30), %r12 - ldw -96(%r30), %r11 - ldw -100(%r30), %r10 - ldw -104(%r30), %r9 - ldw -108(%r30), %r8 - ldw -112(%r30), %r7 - ldw -116(%r30), %r6 - ldw -120(%r30), %r5 - ldw -124(%r30), %r4 - mtctl %r3, %cr27 - ldw,mb -CALLEE_REG_FRAME_SIZE(%r30), %r3 - .endm -#endif /* ! CONFIG_64BIT */ - - .macro save_specials regs - - SAVE_SP (%sr0, PT_SR0 (\regs)) - SAVE_SP (%sr1, PT_SR1 (\regs)) - SAVE_SP (%sr2, PT_SR2 (\regs)) - SAVE_SP (%sr3, PT_SR3 (\regs)) - SAVE_SP (%sr4, PT_SR4 (\regs)) - SAVE_SP (%sr5, PT_SR5 (\regs)) - SAVE_SP (%sr6, PT_SR6 (\regs)) - SAVE_SP (%sr7, PT_SR7 (\regs)) - - SAVE_CR (%cr17, PT_IASQ0(\regs)) - mtctl %r0, %cr17 - SAVE_CR (%cr17, PT_IASQ1(\regs)) - - SAVE_CR (%cr18, PT_IAOQ0(\regs)) - mtctl %r0, %cr18 - SAVE_CR (%cr18, PT_IAOQ1(\regs)) - -#ifdef CONFIG_64BIT - /* cr11 (sar) is a funny one. 5 bits on PA1.1 and 6 bit on PA2.0 - * For PA2.0 mtsar or mtctl always write 6 bits, but mfctl only - * reads 5 bits. Use mfctl,w to read all six bits. Otherwise - * we lose the 6th bit on a save/restore over interrupt. - */ - mfctl,w %cr11, %r1 - STREG %r1, PT_SAR (\regs) -#else - SAVE_CR (%cr11, PT_SAR (\regs)) -#endif - SAVE_CR (%cr19, PT_IIR (\regs)) - - /* - * Code immediately following this macro (in intr_save) relies - * on r8 containing ipsw. - */ - mfctl %cr22, %r8 - STREG %r8, PT_PSW(\regs) - .endm - - .macro rest_specials regs - - REST_SP (%sr0, PT_SR0 (\regs)) - REST_SP (%sr1, PT_SR1 (\regs)) - REST_SP (%sr2, PT_SR2 (\regs)) - REST_SP (%sr3, PT_SR3 (\regs)) - REST_SP (%sr4, PT_SR4 (\regs)) - REST_SP (%sr5, PT_SR5 (\regs)) - REST_SP (%sr6, PT_SR6 (\regs)) - REST_SP (%sr7, PT_SR7 (\regs)) - - REST_CR (%cr17, PT_IASQ0(\regs)) - REST_CR (%cr17, PT_IASQ1(\regs)) - - REST_CR (%cr18, PT_IAOQ0(\regs)) - REST_CR (%cr18, PT_IAOQ1(\regs)) - - REST_CR (%cr11, PT_SAR (\regs)) - - REST_CR (%cr22, PT_PSW (\regs)) - .endm - - - /* First step to create a "relied upon translation" - * See PA 2.0 Arch. page F-4 and F-5. - * - * The ssm was originally necessary due to a "PCxT bug". - * But someone decided it needed to be added to the architecture - * and this "feature" went into rev3 of PA-RISC 1.1 Arch Manual. - * It's been carried forward into PA 2.0 Arch as well. :^( - * - * "ssm 0,%r0" is a NOP with side effects (prefetch barrier). - * rsm/ssm prevents the ifetch unit from speculatively fetching - * instructions past this line in the code stream. - * PA 2.0 processor will single step all insn in the same QUAD (4 insn). - */ - .macro pcxt_ssm_bug - rsm PSW_SM_I,%r0 - nop /* 1 */ - nop /* 2 */ - nop /* 3 */ - nop /* 4 */ - nop /* 5 */ - nop /* 6 */ - nop /* 7 */ - .endm - -#endif /* __ASSEMBLY__ */ -#endif diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h deleted file mode 100644 index 57fcc4a5ebb4..000000000000 --- a/include/asm-parisc/atomic.h +++ /dev/null @@ -1,348 +0,0 @@ -/* Copyright (C) 2000 Philipp Rumpf - * Copyright (C) 2006 Kyle McMartin - */ - -#ifndef _ASM_PARISC_ATOMIC_H_ -#define _ASM_PARISC_ATOMIC_H_ - -#include -#include - -/* - * Atomic operations that C can't guarantee us. Useful for - * resource counting etc.. - * - * And probably incredibly slow on parisc. OTOH, we don't - * have to write any serious assembly. prumpf - */ - -#ifdef CONFIG_SMP -#include -#include /* we use L1_CACHE_BYTES */ - -/* Use an array of spinlocks for our atomic_ts. - * Hash function to index into a different SPINLOCK. - * Since "a" is usually an address, use one spinlock per cacheline. - */ -# define ATOMIC_HASH_SIZE 4 -# define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) a)/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ])) - -extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned; - -/* Can't use raw_spin_lock_irq because of #include problems, so - * this is the substitute */ -#define _atomic_spin_lock_irqsave(l,f) do { \ - raw_spinlock_t *s = ATOMIC_HASH(l); \ - local_irq_save(f); \ - __raw_spin_lock(s); \ -} while(0) - -#define _atomic_spin_unlock_irqrestore(l,f) do { \ - raw_spinlock_t *s = ATOMIC_HASH(l); \ - __raw_spin_unlock(s); \ - local_irq_restore(f); \ -} while(0) - - -#else -# define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0) -# define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0) -#endif - -/* This should get optimized out since it's never called. -** Or get a link error if xchg is used "wrong". -*/ -extern void __xchg_called_with_bad_pointer(void); - - -/* __xchg32/64 defined in arch/parisc/lib/bitops.c */ -extern unsigned long __xchg8(char, char *); -extern unsigned long __xchg32(int, int *); -#ifdef CONFIG_64BIT -extern unsigned long __xchg64(unsigned long, unsigned long *); -#endif - -/* optimizer better get rid of switch since size is a constant */ -static __inline__ unsigned long -__xchg(unsigned long x, __volatile__ void * ptr, int size) -{ - switch(size) { -#ifdef CONFIG_64BIT - case 8: return __xchg64(x,(unsigned long *) ptr); -#endif - case 4: return __xchg32((int) x, (int *) ptr); - case 1: return __xchg8((char) x, (char *) ptr); - } - __xchg_called_with_bad_pointer(); - return x; -} - - -/* -** REVISIT - Abandoned use of LDCW in xchg() for now: -** o need to test sizeof(*ptr) to avoid clearing adjacent bytes -** o and while we are at it, could CONFIG_64BIT code use LDCD too? -** -** if (__builtin_constant_p(x) && (x == NULL)) -** if (((unsigned long)p & 0xf) == 0) -** return __ldcw(p); -*/ -#define xchg(ptr,x) \ - ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - - -#define __HAVE_ARCH_CMPXCHG 1 - -/* bug catcher for when unsupported size is used - won't link */ -extern void __cmpxchg_called_with_bad_pointer(void); - -/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */ -extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, unsigned int new_); -extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsigned long new_); - -/* don't worry...optimizer will get rid of most of this */ -static __inline__ unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) -{ - switch(size) { -#ifdef CONFIG_64BIT - case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); -#endif - case 4: return __cmpxchg_u32((unsigned int *)ptr, (unsigned int) old, (unsigned int) new_); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr,o,n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr))); \ - }) - -#include - -static inline unsigned long __cmpxchg_local(volatile void *ptr, - unsigned long old, - unsigned long new_, int size) -{ - switch (size) { -#ifdef CONFIG_64BIT - case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); -#endif - case 4: return __cmpxchg_u32(ptr, old, new_); - default: - return __cmpxchg_local_generic(ptr, old, new_, size); - } -} - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) -#ifdef CONFIG_64BIT -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif - -/* Note that we need not lock read accesses - aligned word writes/reads - * are atomic, so a reader never sees unconsistent values. - * - * Cache-line alignment would conflict with, for example, linux/module.h - */ - -typedef struct { volatile int counter; } atomic_t; - -/* It's possible to reduce all atomic operations to either - * __atomic_add_return, atomic_set and atomic_read (the latter - * is there only for consistency). - */ - -static __inline__ int __atomic_add_return(int i, atomic_t *v) -{ - int ret; - unsigned long flags; - _atomic_spin_lock_irqsave(v, flags); - - ret = (v->counter += i); - - _atomic_spin_unlock_irqrestore(v, flags); - return ret; -} - -static __inline__ void atomic_set(atomic_t *v, int i) -{ - unsigned long flags; - _atomic_spin_lock_irqsave(v, flags); - - v->counter = i; - - _atomic_spin_unlock_irqrestore(v, flags); -} - -static __inline__ int atomic_read(const atomic_t *v) -{ - return v->counter; -} - -/* exported interface */ -#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) - -/** - * atomic_add_unless - add unless the number is a given value - * @v: pointer of type atomic_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns non-zero if @v was not @u, and zero otherwise. - */ -static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) -{ - int c, old; - c = atomic_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c != (u); -} - -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -#define atomic_add(i,v) ((void)(__atomic_add_return( ((int)i),(v)))) -#define atomic_sub(i,v) ((void)(__atomic_add_return(-((int)i),(v)))) -#define atomic_inc(v) ((void)(__atomic_add_return( 1,(v)))) -#define atomic_dec(v) ((void)(__atomic_add_return( -1,(v)))) - -#define atomic_add_return(i,v) (__atomic_add_return( ((int)i),(v))) -#define atomic_sub_return(i,v) (__atomic_add_return(-((int)i),(v))) -#define atomic_inc_return(v) (__atomic_add_return( 1,(v))) -#define atomic_dec_return(v) (__atomic_add_return( -1,(v))) - -#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) - -#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) - -#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0) - -#define ATOMIC_INIT(i) ((atomic_t) { (i) }) - -#define smp_mb__before_atomic_dec() smp_mb() -#define smp_mb__after_atomic_dec() smp_mb() -#define smp_mb__before_atomic_inc() smp_mb() -#define smp_mb__after_atomic_inc() smp_mb() - -#ifdef CONFIG_64BIT - -typedef struct { volatile s64 counter; } atomic64_t; - -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) }) - -static __inline__ int -__atomic64_add_return(s64 i, atomic64_t *v) -{ - int ret; - unsigned long flags; - _atomic_spin_lock_irqsave(v, flags); - - ret = (v->counter += i); - - _atomic_spin_unlock_irqrestore(v, flags); - return ret; -} - -static __inline__ void -atomic64_set(atomic64_t *v, s64 i) -{ - unsigned long flags; - _atomic_spin_lock_irqsave(v, flags); - - v->counter = i; - - _atomic_spin_unlock_irqrestore(v, flags); -} - -static __inline__ s64 -atomic64_read(const atomic64_t *v) -{ - return v->counter; -} - -#define atomic64_add(i,v) ((void)(__atomic64_add_return( ((s64)i),(v)))) -#define atomic64_sub(i,v) ((void)(__atomic64_add_return(-((s64)i),(v)))) -#define atomic64_inc(v) ((void)(__atomic64_add_return( 1,(v)))) -#define atomic64_dec(v) ((void)(__atomic64_add_return( -1,(v)))) - -#define atomic64_add_return(i,v) (__atomic64_add_return( ((s64)i),(v))) -#define atomic64_sub_return(i,v) (__atomic64_add_return(-((s64)i),(v))) -#define atomic64_inc_return(v) (__atomic64_add_return( 1,(v))) -#define atomic64_dec_return(v) (__atomic64_add_return( -1,(v))) - -#define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0) - -#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) -#define atomic64_dec_and_test(v) (atomic64_dec_return(v) == 0) -#define atomic64_sub_and_test(i,v) (atomic64_sub_return((i),(v)) == 0) - -/* exported interface */ -#define atomic64_cmpxchg(v, o, n) \ - ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) -#define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) - -/** - * atomic64_add_unless - add unless the number is a given value - * @v: pointer of type atomic64_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns non-zero if @v was not @u, and zero otherwise. - */ -static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) -{ - long c, old; - c = atomic64_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic64_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c != (u); -} - -#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -#endif /* CONFIG_64BIT */ - -#include - -#endif /* _ASM_PARISC_ATOMIC_H_ */ diff --git a/include/asm-parisc/auxvec.h b/include/asm-parisc/auxvec.h deleted file mode 100644 index 9c3ac4b89dc9..000000000000 --- a/include/asm-parisc/auxvec.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __ASMPARISC_AUXVEC_H -#define __ASMPARISC_AUXVEC_H - -#endif diff --git a/include/asm-parisc/bitops.h b/include/asm-parisc/bitops.h deleted file mode 100644 index 7a6ea10bd231..000000000000 --- a/include/asm-parisc/bitops.h +++ /dev/null @@ -1,239 +0,0 @@ -#ifndef _PARISC_BITOPS_H -#define _PARISC_BITOPS_H - -#ifndef _LINUX_BITOPS_H -#error only can be included directly -#endif - -#include -#include /* for BITS_PER_LONG/SHIFT_PER_LONG */ -#include -#include - -/* - * HP-PARISC specific bit operations - * for a detailed description of the functions please refer - * to include/asm-i386/bitops.h or kerneldoc - */ - -#define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1)) - - -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() - -/* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion - * on use of volatile and __*_bit() (set/clear/change): - * *_bit() want use of volatile. - * __*_bit() are "relaxed" and don't use spinlock or volatile. - */ - -static __inline__ void set_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = 1UL << CHOP_SHIFTCOUNT(nr); - unsigned long flags; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - *addr |= mask; - _atomic_spin_unlock_irqrestore(addr, flags); -} - -static __inline__ void clear_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = ~(1UL << CHOP_SHIFTCOUNT(nr)); - unsigned long flags; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - *addr &= mask; - _atomic_spin_unlock_irqrestore(addr, flags); -} - -static __inline__ void change_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = 1UL << CHOP_SHIFTCOUNT(nr); - unsigned long flags; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - *addr ^= mask; - _atomic_spin_unlock_irqrestore(addr, flags); -} - -static __inline__ int test_and_set_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = 1UL << CHOP_SHIFTCOUNT(nr); - unsigned long old; - unsigned long flags; - int set; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - old = *addr; - set = (old & mask) ? 1 : 0; - if (!set) - *addr = old | mask; - _atomic_spin_unlock_irqrestore(addr, flags); - - return set; -} - -static __inline__ int test_and_clear_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = 1UL << CHOP_SHIFTCOUNT(nr); - unsigned long old; - unsigned long flags; - int set; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - old = *addr; - set = (old & mask) ? 1 : 0; - if (set) - *addr = old & ~mask; - _atomic_spin_unlock_irqrestore(addr, flags); - - return set; -} - -static __inline__ int test_and_change_bit(int nr, volatile unsigned long * addr) -{ - unsigned long mask = 1UL << CHOP_SHIFTCOUNT(nr); - unsigned long oldbit; - unsigned long flags; - - addr += (nr >> SHIFT_PER_LONG); - _atomic_spin_lock_irqsave(addr, flags); - oldbit = *addr; - *addr = oldbit ^ mask; - _atomic_spin_unlock_irqrestore(addr, flags); - - return (oldbit & mask) ? 1 : 0; -} - -#include - -#ifdef __KERNEL__ - -/** - * __ffs - find first bit in word. returns 0 to "BITS_PER_LONG-1". - * @word: The word to search - * - * __ffs() return is undefined if no bit is set. - * - * 32-bit fast __ffs by LaMont Jones "lamont At hp com". - * 64-bit enhancement by Grant Grundler "grundler At parisc-linux org". - * (with help from willy/jejb to get the semantics right) - * - * This algorithm avoids branches by making use of nullification. - * One side effect of "extr" instructions is it sets PSW[N] bit. - * How PSW[N] (nullify next insn) gets set is determined by the - * "condition" field (eg "<>" or "TR" below) in the extr* insn. - * Only the 1st and one of either the 2cd or 3rd insn will get executed. - * Each set of 3 insn will get executed in 2 cycles on PA8x00 vs 16 or so - * cycles for each mispredicted branch. - */ - -static __inline__ unsigned long __ffs(unsigned long x) -{ - unsigned long ret; - - __asm__( -#ifdef CONFIG_64BIT - " ldi 63,%1\n" - " extrd,u,*<> %0,63,32,%%r0\n" - " extrd,u,*TR %0,31,32,%0\n" /* move top 32-bits down */ - " addi -32,%1,%1\n" -#else - " ldi 31,%1\n" -#endif - " extru,<> %0,31,16,%%r0\n" - " extru,TR %0,15,16,%0\n" /* xxxx0000 -> 0000xxxx */ - " addi -16,%1,%1\n" - " extru,<> %0,31,8,%%r0\n" - " extru,TR %0,23,8,%0\n" /* 0000xx00 -> 000000xx */ - " addi -8,%1,%1\n" - " extru,<> %0,31,4,%%r0\n" - " extru,TR %0,27,4,%0\n" /* 000000x0 -> 0000000x */ - " addi -4,%1,%1\n" - " extru,<> %0,31,2,%%r0\n" - " extru,TR %0,29,2,%0\n" /* 0000000y, 1100b -> 0011b */ - " addi -2,%1,%1\n" - " extru,= %0,31,1,%%r0\n" /* check last bit */ - " addi -1,%1,%1\n" - : "+r" (x), "=r" (ret) ); - return ret; -} - -#include - -/* - * ffs: find first bit set. returns 1 to BITS_PER_LONG or 0 (if none set) - * This is defined the same way as the libc and compiler builtin - * ffs routines, therefore differs in spirit from the above ffz (man ffs). - */ -static __inline__ int ffs(int x) -{ - return x ? (__ffs((unsigned long)x) + 1) : 0; -} - -/* - * fls: find last (most significant) bit set. - * fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. - */ - -static __inline__ int fls(int x) -{ - int ret; - if (!x) - return 0; - - __asm__( - " ldi 1,%1\n" - " extru,<> %0,15,16,%%r0\n" - " zdep,TR %0,15,16,%0\n" /* xxxx0000 */ - " addi 16,%1,%1\n" - " extru,<> %0,7,8,%%r0\n" - " zdep,TR %0,23,24,%0\n" /* xx000000 */ - " addi 8,%1,%1\n" - " extru,<> %0,3,4,%%r0\n" - " zdep,TR %0,27,28,%0\n" /* x0000000 */ - " addi 4,%1,%1\n" - " extru,<> %0,1,2,%%r0\n" - " zdep,TR %0,29,30,%0\n" /* y0000000 (y&3 = 0) */ - " addi 2,%1,%1\n" - " extru,= %0,0,1,%%r0\n" - " addi 1,%1,%1\n" /* if y & 8, add 1 */ - : "+r" (x), "=r" (ret) ); - - return ret; -} - -#include -#include -#include -#include -#include - -#endif /* __KERNEL__ */ - -#include - -#ifdef __KERNEL__ - -#include - -/* '3' is bits per byte */ -#define LE_BYTE_ADDR ((sizeof(unsigned long) - 1) << 3) - -#define ext2_set_bit_atomic(l,nr,addr) \ - test_and_set_bit((nr) ^ LE_BYTE_ADDR, (unsigned long *)addr) -#define ext2_clear_bit_atomic(l,nr,addr) \ - test_and_clear_bit( (nr) ^ LE_BYTE_ADDR, (unsigned long *)addr) - -#endif /* __KERNEL__ */ - -#include - -#endif /* _PARISC_BITOPS_H */ diff --git a/include/asm-parisc/bug.h b/include/asm-parisc/bug.h deleted file mode 100644 index 8cfc553fc837..000000000000 --- a/include/asm-parisc/bug.h +++ /dev/null @@ -1,92 +0,0 @@ -#ifndef _PARISC_BUG_H -#define _PARISC_BUG_H - -/* - * Tell the user there is some problem. - * The offending file and line are encoded in the __bug_table section. - */ - -#ifdef CONFIG_BUG -#define HAVE_ARCH_BUG -#define HAVE_ARCH_WARN_ON - -/* the break instruction is used as BUG() marker. */ -#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff" -#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */ - -#if defined(CONFIG_64BIT) -#define ASM_WORD_INSN ".dword\t" -#else -#define ASM_WORD_INSN ".word\t" -#endif - -#ifdef CONFIG_DEBUG_BUGVERBOSE -#define BUG() \ - do { \ - asm volatile("\n" \ - "1:\t" PARISC_BUG_BREAK_ASM "\n" \ - "\t.pushsection __bug_table,\"a\"\n" \ - "2:\t" ASM_WORD_INSN "1b, %c0\n" \ - "\t.short %c1, %c2\n" \ - "\t.org 2b+%c3\n" \ - "\t.popsection" \ - : : "i" (__FILE__), "i" (__LINE__), \ - "i" (0), "i" (sizeof(struct bug_entry)) ); \ - for(;;) ; \ - } while(0) - -#else -#define BUG() \ - do { \ - asm volatile(PARISC_BUG_BREAK_ASM : : ); \ - for(;;) ; \ - } while(0) -#endif - -#ifdef CONFIG_DEBUG_BUGVERBOSE -#define __WARN() \ - do { \ - asm volatile("\n" \ - "1:\t" PARISC_BUG_BREAK_ASM "\n" \ - "\t.pushsection __bug_table,\"a\"\n" \ - "2:\t" ASM_WORD_INSN "1b, %c0\n" \ - "\t.short %c1, %c2\n" \ - "\t.org 2b+%c3\n" \ - "\t.popsection" \ - : : "i" (__FILE__), "i" (__LINE__), \ - "i" (BUGFLAG_WARNING), \ - "i" (sizeof(struct bug_entry)) ); \ - } while(0) -#else -#define __WARN() \ - do { \ - asm volatile("\n" \ - "1:\t" PARISC_BUG_BREAK_ASM "\n" \ - "\t.pushsection __bug_table,\"a\"\n" \ - "2:\t" ASM_WORD_INSN "1b\n" \ - "\t.short %c0\n" \ - "\t.org 2b+%c1\n" \ - "\t.popsection" \ - : : "i" (BUGFLAG_WARNING), \ - "i" (sizeof(struct bug_entry)) ); \ - } while(0) -#endif - - -#define WARN_ON(x) ({ \ - int __ret_warn_on = !!(x); \ - if (__builtin_constant_p(__ret_warn_on)) { \ - if (__ret_warn_on) \ - __WARN(); \ - } else { \ - if (unlikely(__ret_warn_on)) \ - __WARN(); \ - } \ - unlikely(__ret_warn_on); \ -}) - -#endif - -#include -#endif - diff --git a/include/asm-parisc/bugs.h b/include/asm-parisc/bugs.h deleted file mode 100644 index 9e6284342a5f..000000000000 --- a/include/asm-parisc/bugs.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * include/asm-parisc/bugs.h - * - * Copyright (C) 1999 Mike Shaver - */ - -/* - * This is included by init/main.c to check for architecture-dependent bugs. - * - * Needs: - * void check_bugs(void); - */ - -#include - -static inline void check_bugs(void) -{ -// identify_cpu(&boot_cpu_data); -} diff --git a/include/asm-parisc/byteorder.h b/include/asm-parisc/byteorder.h deleted file mode 100644 index db148313de5d..000000000000 --- a/include/asm-parisc/byteorder.h +++ /dev/null @@ -1,82 +0,0 @@ -#ifndef _PARISC_BYTEORDER_H -#define _PARISC_BYTEORDER_H - -#include -#include - -#ifdef __GNUC__ - -static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) -{ - __asm__("dep %0, 15, 8, %0\n\t" /* deposit 00ab -> 0bab */ - "shd %%r0, %0, 8, %0" /* shift 000000ab -> 00ba */ - : "=r" (x) - : "0" (x)); - return x; -} - -static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x) -{ - __asm__("shd %0, %0, 8, %0\n\t" /* shift xabcxabc -> cxab */ - "dep %0, 15, 8, %0\n\t" /* deposit cxab -> cbab */ - "shd %%r0, %0, 8, %0" /* shift 0000cbab -> 0cba */ - : "=r" (x) - : "0" (x)); - return x; -} - -static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) -{ - unsigned int temp; - __asm__("shd %0, %0, 16, %1\n\t" /* shift abcdabcd -> cdab */ - "dep %1, 15, 8, %1\n\t" /* deposit cdab -> cbab */ - "shd %0, %1, 8, %0" /* shift abcdcbab -> dcba */ - : "=r" (x), "=&r" (temp) - : "0" (x)); - return x; -} - - -#if BITS_PER_LONG > 32 -/* -** From "PA-RISC 2.0 Architecture", HP Professional Books. -** See Appendix I page 8 , "Endian Byte Swapping". -** -** Pretty cool algorithm: (* == zero'd bits) -** PERMH 01234567 -> 67452301 into %0 -** HSHL 67452301 -> 7*5*3*1* into %1 -** HSHR 67452301 -> *6*4*2*0 into %0 -** OR %0 | %1 -> 76543210 into %0 (all done!) -*/ -static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) { - __u64 temp; - __asm__("permh,3210 %0, %0\n\t" - "hshl %0, 8, %1\n\t" - "hshr,u %0, 8, %0\n\t" - "or %1, %0, %0" - : "=r" (x), "=&r" (temp) - : "0" (x)); - return x; -} -#define __arch__swab64(x) ___arch__swab64(x) -#define __BYTEORDER_HAS_U64__ -#elif !defined(__STRICT_ANSI__) -static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) -{ - __u32 t1 = ___arch__swab32((__u32) x); - __u32 t2 = ___arch__swab32((__u32) (x >> 32)); - return (((__u64) t1 << 32) | t2); -} -#define __arch__swab64(x) ___arch__swab64(x) -#define __BYTEORDER_HAS_U64__ -#endif - -#define __arch__swab16(x) ___arch__swab16(x) -#define __arch__swab24(x) ___arch__swab24(x) -#define __arch__swab32(x) ___arch__swab32(x) - -#endif /* __GNUC__ */ - -#include - -#endif /* _PARISC_BYTEORDER_H */ diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h deleted file mode 100644 index 32c2cca74345..000000000000 --- a/include/asm-parisc/cache.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * include/asm-parisc/cache.h - */ - -#ifndef __ARCH_PARISC_CACHE_H -#define __ARCH_PARISC_CACHE_H - - -/* - * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have - * 32-byte cachelines. The default configuration is not for SMP anyway, - * so if you're building for SMP, you should select the appropriate - * processor type. There is a potential livelock danger when running - * a machine with this value set too small, but it's more probable you'll - * just ruin performance. - */ -#ifdef CONFIG_PA20 -#define L1_CACHE_BYTES 64 -#define L1_CACHE_SHIFT 6 -#else -#define L1_CACHE_BYTES 32 -#define L1_CACHE_SHIFT 5 -#endif - -#ifndef __ASSEMBLY__ - -#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) - -#define SMP_CACHE_BYTES L1_CACHE_BYTES - -#define __read_mostly __attribute__((__section__(".data.read_mostly"))) - -void parisc_cache_init(void); /* initializes cache-flushing */ -void disable_sr_hashing_asm(int); /* low level support for above */ -void disable_sr_hashing(void); /* turns off space register hashing */ -void free_sid(unsigned long); -unsigned long alloc_sid(void); - -struct seq_file; -extern void show_cache_info(struct seq_file *m); - -extern int split_tlb; -extern int dcache_stride; -extern int icache_stride; -extern struct pdc_cache_info cache_info; -void parisc_setup_cache_timing(void); - -#define pdtlb(addr) asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr)); -#define pitlb(addr) asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr)); -#define pdtlb_kernel(addr) asm volatile("pdtlb 0(%0)" : : "r" (addr)); - -#endif /* ! __ASSEMBLY__ */ - -/* Classes of processor wrt: disabling space register hashing */ - -#define SRHASH_PCXST 0 /* pcxs, pcxt, pcxt_ */ -#define SRHASH_PCXL 1 /* pcxl */ -#define SRHASH_PA20 2 /* pcxu, pcxu_, pcxw, pcxw_ */ - -#endif diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h deleted file mode 100644 index b7ca6dc7fddc..000000000000 --- a/include/asm-parisc/cacheflush.h +++ /dev/null @@ -1,121 +0,0 @@ -#ifndef _PARISC_CACHEFLUSH_H -#define _PARISC_CACHEFLUSH_H - -#include - -/* The usual comment is "Caches aren't brain-dead on the ". - * Unfortunately, that doesn't apply to PA-RISC. */ - -/* Internal implementation */ -void flush_data_cache_local(void *); /* flushes local data-cache only */ -void flush_instruction_cache_local(void *); /* flushes local code-cache only */ -#ifdef CONFIG_SMP -void flush_data_cache(void); /* flushes data-cache only (all processors) */ -void flush_instruction_cache(void); /* flushes i-cache only (all processors) */ -#else -#define flush_data_cache() flush_data_cache_local(NULL) -#define flush_instruction_cache() flush_instruction_cache_local(NULL) -#endif - -#define flush_cache_dup_mm(mm) flush_cache_mm(mm) - -void flush_user_icache_range_asm(unsigned long, unsigned long); -void flush_kernel_icache_range_asm(unsigned long, unsigned long); -void flush_user_dcache_range_asm(unsigned long, unsigned long); -void flush_kernel_dcache_range_asm(unsigned long, unsigned long); -void flush_kernel_dcache_page_asm(void *); -void flush_kernel_icache_page(void *); -void flush_user_dcache_page(unsigned long); -void flush_user_icache_page(unsigned long); -void flush_user_dcache_range(unsigned long, unsigned long); -void flush_user_icache_range(unsigned long, unsigned long); - -/* Cache flush operations */ - -void flush_cache_all_local(void); -void flush_cache_all(void); -void flush_cache_mm(struct mm_struct *mm); - -#define flush_kernel_dcache_range(start,size) \ - flush_kernel_dcache_range_asm((start), (start)+(size)); - -#define flush_cache_vmap(start, end) flush_cache_all() -#define flush_cache_vunmap(start, end) flush_cache_all() - -extern void flush_dcache_page(struct page *page); - -#define flush_dcache_mmap_lock(mapping) \ - spin_lock_irq(&(mapping)->tree_lock) -#define flush_dcache_mmap_unlock(mapping) \ - spin_unlock_irq(&(mapping)->tree_lock) - -#define flush_icache_page(vma,page) do { \ - flush_kernel_dcache_page(page); \ - flush_kernel_icache_page(page_address(page)); \ -} while (0) - -#define flush_icache_range(s,e) do { \ - flush_kernel_dcache_range_asm(s,e); \ - flush_kernel_icache_range_asm(s,e); \ -} while (0) - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page)); \ - memcpy(dst, src, len); \ - flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \ -} while (0) - -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ -do { \ - flush_cache_page(vma, vaddr, page_to_pfn(page)); \ - memcpy(dst, src, len); \ -} while (0) - -void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn); -void flush_cache_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end); - -#define ARCH_HAS_FLUSH_ANON_PAGE -static inline void -flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr) -{ - if (PageAnon(page)) - flush_user_dcache_page(vmaddr); -} - -#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE -void flush_kernel_dcache_page_addr(void *addr); -static inline void flush_kernel_dcache_page(struct page *page) -{ - flush_kernel_dcache_page_addr(page_address(page)); -} - -#ifdef CONFIG_DEBUG_RODATA -void mark_rodata_ro(void); -#endif - -#ifdef CONFIG_PA8X00 -/* Only pa8800, pa8900 needs this */ -#define ARCH_HAS_KMAP - -void kunmap_parisc(void *addr); - -static inline void *kmap(struct page *page) -{ - might_sleep(); - return page_address(page); -} - -#define kunmap(page) kunmap_parisc(page_address(page)) - -#define kmap_atomic(page, idx) page_address(page) - -#define kunmap_atomic(addr, idx) kunmap_parisc(addr) - -#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn)) -#define kmap_atomic_to_page(ptr) virt_to_page(ptr) -#endif - -#endif /* _PARISC_CACHEFLUSH_H */ - diff --git a/include/asm-parisc/checksum.h b/include/asm-parisc/checksum.h deleted file mode 100644 index e9639ccc3fce..000000000000 --- a/include/asm-parisc/checksum.h +++ /dev/null @@ -1,210 +0,0 @@ -#ifndef _PARISC_CHECKSUM_H -#define _PARISC_CHECKSUM_H - -#include - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void *, int, __wsum); - -/* - * The same as csum_partial, but copies from src while it checksums. - * - * Here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy_nocheck(const void *, void *, int, __wsum); - -/* - * this is a new version of the above that records errors it finds in *errp, - * but continues and zeros the rest of the buffer. - */ -extern __wsum csum_partial_copy_from_user(const void __user *src, - void *dst, int len, __wsum sum, int *errp); - -/* - * Optimized for IP headers, which always checksum on 4 octet boundaries. - * - * Written by Randolph Chung , and then mucked with by - * LaMont Jones - */ -static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - unsigned int sum; - - __asm__ __volatile__ ( -" ldws,ma 4(%1), %0\n" -" addib,<= -4, %2, 2f\n" -"\n" -" ldws 4(%1), %%r20\n" -" ldws 8(%1), %%r21\n" -" add %0, %%r20, %0\n" -" ldws,ma 12(%1), %%r19\n" -" addc %0, %%r21, %0\n" -" addc %0, %%r19, %0\n" -"1: ldws,ma 4(%1), %%r19\n" -" addib,< 0, %2, 1b\n" -" addc %0, %%r19, %0\n" -"\n" -" extru %0, 31, 16, %%r20\n" -" extru %0, 15, 16, %%r21\n" -" addc %%r20, %%r21, %0\n" -" extru %0, 15, 16, %%r21\n" -" add %0, %%r21, %0\n" -" subi -1, %0, %0\n" -"2:\n" - : "=r" (sum), "=r" (iph), "=r" (ihl) - : "1" (iph), "2" (ihl) - : "r19", "r20", "r21", "memory"); - - return (__force __sum16)sum; -} - -/* - * Fold a partial checksum - */ -static inline __sum16 csum_fold(__wsum csum) -{ - u32 sum = (__force u32)csum; - /* add the swapped two 16-bit halves of sum, - a possible carry from adding the two 16-bit halves, - will carry from the lower half into the upper half, - giving us the correct sum in the upper half. */ - sum += (sum << 16) + (sum >> 16); - return (__force __sum16)(~sum >> 16); -} - -static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - __asm__( - " add %1, %0, %0\n" - " addc %2, %0, %0\n" - " addc %3, %0, %0\n" - " addc %%r0, %0, %0\n" - : "=r" (sum) - : "r" (daddr), "r"(saddr), "r"(proto+len), "0"(sum)); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -} - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ -static inline __sum16 ip_compute_csum(const void *buf, int len) -{ - return csum_fold (csum_partial(buf, len, 0)); -} - - -#define _HAVE_ARCH_IPV6_CSUM -static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr, - const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum) -{ - __asm__ __volatile__ ( - -#if BITS_PER_LONG > 32 - - /* - ** We can execute two loads and two adds per cycle on PA 8000. - ** But add insn's get serialized waiting for the carry bit. - ** Try to keep 4 registers with "live" values ahead of the ALU. - */ - -" ldd,ma 8(%1), %%r19\n" /* get 1st saddr word */ -" ldd,ma 8(%2), %%r20\n" /* get 1st daddr word */ -" add %8, %3, %3\n"/* add 16-bit proto + len */ -" add %%r19, %0, %0\n" -" ldd,ma 8(%1), %%r21\n" /* 2cd saddr */ -" ldd,ma 8(%2), %%r22\n" /* 2cd daddr */ -" add,dc %%r20, %0, %0\n" -" add,dc %%r21, %0, %0\n" -" add,dc %%r22, %0, %0\n" -" add,dc %3, %0, %0\n" /* fold in proto+len | carry bit */ -" extrd,u %0, 31, 32, %%r19\n" /* copy upper half down */ -" depdi 0, 31, 32, %0\n" /* clear upper half */ -" add %%r19, %0, %0\n" /* fold into 32-bits */ -" addc 0, %0, %0\n" /* add carry */ - -#else - - /* - ** For PA 1.x, the insn order doesn't matter as much. - ** Insn stream is serialized on the carry bit here too. - ** result from the previous operation (eg r0 + x) - */ - -" ldw,ma 4(%1), %%r19\n" /* get 1st saddr word */ -" ldw,ma 4(%2), %%r20\n" /* get 1st daddr word */ -" add %8, %3, %3\n" /* add 16-bit proto + len */ -" add %%r19, %0, %0\n" -" ldw,ma 4(%1), %%r21\n" /* 2cd saddr */ -" addc %%r20, %0, %0\n" -" ldw,ma 4(%2), %%r22\n" /* 2cd daddr */ -" addc %%r21, %0, %0\n" -" ldw,ma 4(%1), %%r19\n" /* 3rd saddr */ -" addc %%r22, %0, %0\n" -" ldw,ma 4(%2), %%r20\n" /* 3rd daddr */ -" addc %%r19, %0, %0\n" -" ldw,ma 4(%1), %%r21\n" /* 4th saddr */ -" addc %%r20, %0, %0\n" -" ldw,ma 4(%2), %%r22\n" /* 4th daddr */ -" addc %%r21, %0, %0\n" -" addc %%r22, %0, %0\n" -" addc %3, %0, %0\n" /* fold in proto+len, catch carry */ - -#endif - : "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len) - : "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto) - : "r19", "r20", "r21", "r22"); - return csum_fold(sum); -} - -/* - * Copy and checksum to user - */ -#define HAVE_CSUM_COPY_USER -static __inline__ __wsum csum_and_copy_to_user(const void *src, - void __user *dst, - int len, __wsum sum, - int *err_ptr) -{ - /* code stolen from include/asm-mips64 */ - sum = csum_partial(src, len, sum); - - if (copy_to_user(dst, src, len)) { - *err_ptr = -EFAULT; - return (__force __wsum)-1; - } - - return sum; -} - -#endif - diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h deleted file mode 100644 index 7f32611a7a5e..000000000000 --- a/include/asm-parisc/compat.h +++ /dev/null @@ -1,165 +0,0 @@ -#ifndef _ASM_PARISC_COMPAT_H -#define _ASM_PARISC_COMPAT_H -/* - * Architecture specific compatibility types - */ -#include -#include -#include - -#define COMPAT_USER_HZ 100 - -typedef u32 compat_size_t; -typedef s32 compat_ssize_t; -typedef s32 compat_time_t; -typedef s32 compat_clock_t; -typedef s32 compat_pid_t; -typedef u32 __compat_uid_t; -typedef u32 __compat_gid_t; -typedef u32 __compat_uid32_t; -typedef u32 __compat_gid32_t; -typedef u16 compat_mode_t; -typedef u32 compat_ino_t; -typedef u32 compat_dev_t; -typedef s32 compat_off_t; -typedef s64 compat_loff_t; -typedef u16 compat_nlink_t; -typedef u16 compat_ipc_pid_t; -typedef s32 compat_daddr_t; -typedef u32 compat_caddr_t; -typedef s32 compat_timer_t; - -typedef s32 compat_int_t; -typedef s32 compat_long_t; -typedef s64 compat_s64; -typedef u32 compat_uint_t; -typedef u32 compat_ulong_t; -typedef u64 compat_u64; - -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - -struct compat_stat { - compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ - compat_ino_t st_ino; /* 32 bits */ - compat_mode_t st_mode; /* 16 bits */ - compat_nlink_t st_nlink; /* 16 bits */ - u16 st_reserved1; /* old st_uid */ - u16 st_reserved2; /* old st_gid */ - compat_dev_t st_rdev; - compat_off_t st_size; - compat_time_t st_atime; - u32 st_atime_nsec; - compat_time_t st_mtime; - u32 st_mtime_nsec; - compat_time_t st_ctime; - u32 st_ctime_nsec; - s32 st_blksize; - s32 st_blocks; - u32 __unused1; /* ACL stuff */ - compat_dev_t __unused2; /* network */ - compat_ino_t __unused3; /* network */ - u32 __unused4; /* cnodes */ - u16 __unused5; /* netsite */ - short st_fstype; - compat_dev_t st_realdev; - u16 st_basemode; - u16 st_spareshort; - __compat_uid32_t st_uid; - __compat_gid32_t st_gid; - u32 st_spare4[3]; -}; - -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; - -struct compat_statfs { - s32 f_type; - s32 f_bsize; - s32 f_blocks; - s32 f_bfree; - s32 f_bavail; - s32 f_files; - s32 f_ffree; - __kernel_fsid_t f_fsid; - s32 f_namelen; - s32 f_frsize; - s32 f_spare[5]; -}; - -struct compat_sigcontext { - compat_int_t sc_flags; - compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */ - u64 sc_fr[32]; - compat_int_t sc_iasq[2]; - compat_int_t sc_iaoq[2]; - compat_int_t sc_sar; /* cr11 */ -}; - -#define COMPAT_RLIM_INFINITY 0xffffffff - -typedef u32 compat_old_sigset_t; /* at least 32 bits */ - -#define _COMPAT_NSIG 64 -#define _COMPAT_NSIG_BPW 32 - -typedef u32 compat_sigset_word; - -#define COMPAT_OFF_T_MAX 0x7fffffff -#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL - -/* - * A pointer passed in from user mode. This should not - * be used for syscall parameters, just declare them - * as pointers because the syscall entry code will have - * appropriately converted them already. - */ -typedef u32 compat_uptr_t; - -static inline void __user *compat_ptr(compat_uptr_t uptr) -{ - return (void __user *)(unsigned long)uptr; -} - -static inline compat_uptr_t ptr_to_compat(void __user *uptr) -{ - return (u32)(unsigned long)uptr; -} - -static __inline__ void __user *compat_alloc_user_space(long len) -{ - struct pt_regs *regs = ¤t->thread.regs; - return (void __user *)regs->gr[30]; -} - -static inline int __is_compat_task(struct task_struct *t) -{ - return test_ti_thread_flag(task_thread_info(t), TIF_32BIT); -} - -static inline int is_compat_task(void) -{ - return __is_compat_task(current); -} - -#endif /* _ASM_PARISC_COMPAT_H */ diff --git a/include/asm-parisc/compat_rt_sigframe.h b/include/asm-parisc/compat_rt_sigframe.h deleted file mode 100644 index 81bec28bdc48..000000000000 --- a/include/asm-parisc/compat_rt_sigframe.h +++ /dev/null @@ -1,50 +0,0 @@ -#include -#include -#include - -#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H -#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H - -/* In a deft move of uber-hackery, we decide to carry the top half of all - * 64-bit registers in a non-portable, non-ABI, hidden structure. - * Userspace can read the hidden structure if it *wants* but is never - * guaranteed to be in the same place. Infact the uc_sigmask from the - * ucontext_t structure may push the hidden register file downards - */ -struct compat_regfile { - /* Upper half of all the 64-bit registers that were truncated - on a copy to a 32-bit userspace */ - compat_int_t rf_gr[32]; - compat_int_t rf_iasq[2]; - compat_int_t rf_iaoq[2]; - compat_int_t rf_sar; -}; - -#define COMPAT_SIGRETURN_TRAMP 4 -#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 -#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP) - -struct compat_rt_sigframe { - /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c - Secondary to that it must protect the ERESTART_RESTARTBLOCK - trampoline we left on the stack (we were bad and didn't - change sp so we could run really fast.) */ - compat_uint_t tramp[COMPAT_TRAMP_SIZE]; - compat_siginfo_t info; - struct compat_ucontext uc; - /* Hidden location of truncated registers, *must* be last. */ - struct compat_regfile regs; -}; - -/* - * The 32-bit ABI wants at least 48 bytes for a function call frame: - * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of - * which Linux/parisc uses is sp-20 for the saved return pointer...) - * Then, the stack pointer must be rounded to a cache line (64 bytes). - */ -#define SIGFRAME32 64 -#define FUNCTIONCALLFRAME32 48 -#define PARISC_RT_SIGFRAME_SIZE32 \ - (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32) - -#endif diff --git a/include/asm-parisc/compat_signal.h b/include/asm-parisc/compat_signal.h deleted file mode 100644 index 6ad02c360b21..000000000000 --- a/include/asm-parisc/compat_signal.h +++ /dev/null @@ -1,2 +0,0 @@ -/* Use generic */ -#include diff --git a/include/asm-parisc/compat_ucontext.h b/include/asm-parisc/compat_ucontext.h deleted file mode 100644 index 2f7292afde3c..000000000000 --- a/include/asm-parisc/compat_ucontext.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef _ASM_PARISC_COMPAT_UCONTEXT_H -#define _ASM_PARISC_COMPAT_UCONTEXT_H - -#include - -/* 32-bit ucontext as seen from an 64-bit kernel */ -struct compat_ucontext { - compat_uint_t uc_flags; - compat_uptr_t uc_link; - compat_stack_t uc_stack; /* struct compat_sigaltstack (12 bytes)*/ - /* FIXME: Pad out to get uc_mcontext to start at an 8-byte aligned boundary */ - compat_uint_t pad[1]; - struct compat_sigcontext uc_mcontext; - compat_sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -#endif /* !_ASM_PARISC_COMPAT_UCONTEXT_H */ diff --git a/include/asm-parisc/cputime.h b/include/asm-parisc/cputime.h deleted file mode 100644 index dcdf2fbd7e72..000000000000 --- a/include/asm-parisc/cputime.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __PARISC_CPUTIME_H -#define __PARISC_CPUTIME_H - -#include - -#endif /* __PARISC_CPUTIME_H */ diff --git a/include/asm-parisc/current.h b/include/asm-parisc/current.h deleted file mode 100644 index 0fb9338e3bf2..000000000000 --- a/include/asm-parisc/current.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef _PARISC_CURRENT_H -#define _PARISC_CURRENT_H - -#include - -struct task_struct; - -static inline struct task_struct * get_current(void) -{ - return current_thread_info()->task; -} - -#define current get_current() - -#endif /* !(_PARISC_CURRENT_H) */ diff --git a/include/asm-parisc/delay.h b/include/asm-parisc/delay.h deleted file mode 100644 index 7a75e984674b..000000000000 --- a/include/asm-parisc/delay.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef _PARISC_DELAY_H -#define _PARISC_DELAY_H - -#include /* for mfctl() */ -#include /* for boot_cpu_data */ - - -/* - * Copyright (C) 1993 Linus Torvalds - * - * Delay routines - */ - -static __inline__ void __delay(unsigned long loops) { - asm volatile( - " .balignl 64,0x34000034\n" - " addib,UV -1,%0,.\n" - " nop\n" - : "=r" (loops) : "0" (loops)); -} - -static __inline__ void __cr16_delay(unsigned long clocks) { - unsigned long start; - - /* - * Note: Due to unsigned math, cr16 rollovers shouldn't be - * a problem here. However, on 32 bit, we need to make sure - * we don't pass in too big a value. The current default - * value of MAX_UDELAY_MS should help prevent this. - */ - - start = mfctl(16); - while ((mfctl(16) - start) < clocks) - ; -} - -static __inline__ void __udelay(unsigned long usecs) { - __cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL)); -} - -#define udelay(n) __udelay(n) - -#endif /* defined(_PARISC_DELAY_H) */ diff --git a/include/asm-parisc/device.h b/include/asm-parisc/device.h deleted file mode 100644 index d8f9872b0e2d..000000000000 --- a/include/asm-parisc/device.h +++ /dev/null @@ -1,7 +0,0 @@ -/* - * Arch specific extensions to struct device - * - * This file is released under the GPLv2 - */ -#include - diff --git a/include/asm-parisc/div64.h b/include/asm-parisc/div64.h deleted file mode 100644 index 6cd978cefb28..000000000000 --- a/include/asm-parisc/div64.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h deleted file mode 100644 index 53af696f23d2..000000000000 --- a/include/asm-parisc/dma-mapping.h +++ /dev/null @@ -1,253 +0,0 @@ -#ifndef _PARISC_DMA_MAPPING_H -#define _PARISC_DMA_MAPPING_H - -#include -#include -#include - -/* See Documentation/DMA-mapping.txt */ -struct hppa_dma_ops { - int (*dma_supported)(struct device *dev, u64 mask); - void *(*alloc_consistent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag); - void *(*alloc_noncoherent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag); - void (*free_consistent)(struct device *dev, size_t size, void *vaddr, dma_addr_t iova); - dma_addr_t (*map_single)(struct device *dev, void *addr, size_t size, enum dma_data_direction direction); - void (*unmap_single)(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction); - int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction); - void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nhwents, enum dma_data_direction direction); - void (*dma_sync_single_for_cpu)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction); - void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction); - void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction); - void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction); -}; - -/* -** We could live without the hppa_dma_ops indirection if we didn't want -** to support 4 different coherent dma models with one binary (they will -** someday be loadable modules): -** I/O MMU consistent method dma_sync behavior -** ============= ====================== ======================= -** a) PA-7x00LC uncachable host memory flush/purge -** b) U2/Uturn cachable host memory NOP -** c) Ike/Astro cachable host memory NOP -** d) EPIC/SAGA memory on EPIC/SAGA flush/reset DMA channel -** -** PA-7[13]00LC processors have a GSC bus interface and no I/O MMU. -** -** Systems (eg PCX-T workstations) that don't fall into the above -** categories will need to modify the needed drivers to perform -** flush/purge and allocate "regular" cacheable pages for everything. -*/ - -#ifdef CONFIG_PA11 -extern struct hppa_dma_ops pcxl_dma_ops; -extern struct hppa_dma_ops pcx_dma_ops; -#endif - -extern struct hppa_dma_ops *hppa_dma_ops; - -static inline void * -dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) -{ - return hppa_dma_ops->alloc_consistent(dev, size, dma_handle, flag); -} - -static inline void * -dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) -{ - return hppa_dma_ops->alloc_noncoherent(dev, size, dma_handle, flag); -} - -static inline void -dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle); -} - -static inline void -dma_free_noncoherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle); -} - -static inline dma_addr_t -dma_map_single(struct device *dev, void *ptr, size_t size, - enum dma_data_direction direction) -{ - return hppa_dma_ops->map_single(dev, ptr, size, direction); -} - -static inline void -dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) -{ - hppa_dma_ops->unmap_single(dev, dma_addr, size, direction); -} - -static inline int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - return hppa_dma_ops->map_sg(dev, sg, nents, direction); -} - -static inline void -dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, - enum dma_data_direction direction) -{ - hppa_dma_ops->unmap_sg(dev, sg, nhwentries, direction); -} - -static inline dma_addr_t -dma_map_page(struct device *dev, struct page *page, unsigned long offset, - size_t size, enum dma_data_direction direction) -{ - return dma_map_single(dev, (page_address(page) + (offset)), size, direction); -} - -static inline void -dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, - enum dma_data_direction direction) -{ - dma_unmap_single(dev, dma_address, size, direction); -} - - -static inline void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_single_for_cpu) - hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, 0, size, direction); -} - -static inline void -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_single_for_device) - hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, 0, size, direction); -} - -static inline void -dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_single_for_cpu) - hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, offset, size, direction); -} - -static inline void -dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_single_for_device) - hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, offset, size, direction); -} - -static inline void -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_sg_for_cpu) - hppa_dma_ops->dma_sync_sg_for_cpu(dev, sg, nelems, direction); -} - -static inline void -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_sg_for_device) - hppa_dma_ops->dma_sync_sg_for_device(dev, sg, nelems, direction); -} - -static inline int -dma_supported(struct device *dev, u64 mask) -{ - return hppa_dma_ops->dma_supported(dev, mask); -} - -static inline int -dma_set_mask(struct device *dev, u64 mask) -{ - if(!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - *dev->dma_mask = mask; - - return 0; -} - -static inline int -dma_get_cache_alignment(void) -{ - return dcache_stride; -} - -static inline int -dma_is_consistent(struct device *dev, dma_addr_t dma_addr) -{ - return (hppa_dma_ops->dma_sync_single_for_cpu == NULL); -} - -static inline void -dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction direction) -{ - if(hppa_dma_ops->dma_sync_single_for_cpu) - flush_kernel_dcache_range((unsigned long)vaddr, size); -} - -static inline void * -parisc_walk_tree(struct device *dev) -{ - struct device *otherdev; - if(likely(dev->platform_data != NULL)) - return dev->platform_data; - /* OK, just traverse the bus to find it */ - for(otherdev = dev->parent; otherdev; - otherdev = otherdev->parent) { - if(otherdev->platform_data) { - dev->platform_data = otherdev->platform_data; - break; - } - } - BUG_ON(!dev->platform_data); - return dev->platform_data; -} - -#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu); - - -#ifdef CONFIG_IOMMU_CCIO -struct parisc_device; -struct ioc; -void * ccio_get_iommu(const struct parisc_device *dev); -int ccio_request_resource(const struct parisc_device *dev, - struct resource *res); -int ccio_allocate_resource(const struct parisc_device *dev, - struct resource *res, unsigned long size, - unsigned long min, unsigned long max, unsigned long align); -#else /* !CONFIG_IOMMU_CCIO */ -#define ccio_get_iommu(dev) NULL -#define ccio_request_resource(dev, res) insert_resource(&iomem_resource, res) -#define ccio_allocate_resource(dev, res, size, min, max, align) \ - allocate_resource(&iomem_resource, res, size, min, max, \ - align, NULL, NULL) -#endif /* !CONFIG_IOMMU_CCIO */ - -#ifdef CONFIG_IOMMU_SBA -struct parisc_device; -void * sba_get_iommu(struct parisc_device *dev); -#endif - -/* At the moment, we panic on error for IOMMU resource exaustion */ -#define dma_mapping_error(dev, x) 0 - -#endif diff --git a/include/asm-parisc/dma.h b/include/asm-parisc/dma.h deleted file mode 100644 index 31ad0f05af3d..000000000000 --- a/include/asm-parisc/dma.h +++ /dev/null @@ -1,186 +0,0 @@ -/* $Id: dma.h,v 1.2 1999/04/27 00:46:18 deller Exp $ - * linux/include/asm/dma.h: Defines for using and allocating dma channels. - * Written by Hennus Bergman, 1992. - * High DMA channel support & info by Hannu Savolainen - * and John Boyd, Nov. 1992. - * (c) Copyright 2000, Grant Grundler - */ - -#ifndef _ASM_DMA_H -#define _ASM_DMA_H - -#include /* need byte IO */ -#include - -#define dma_outb outb -#define dma_inb inb - -/* -** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up -** (or rather not merge) DMAs into manageable chunks. -** On parisc, this is more of the software/tuning constraint -** rather than the HW. I/O MMU allocation algorithms can be -** faster with smaller sizes (to some degree). -*/ -#define DMA_CHUNK_SIZE (BITS_PER_LONG*PAGE_SIZE) - -/* The maximum address that we can perform a DMA transfer to on this platform -** New dynamic DMA interfaces should obsolete this.... -*/ -#define MAX_DMA_ADDRESS (~0UL) - -/* -** We don't have DMA channels... well V-class does but the -** Dynamic DMA Mapping interface will support them... right? :^) -** Note: this is not relevant right now for PA-RISC, but we cannot -** leave this as undefined because some things (e.g. sound) -** won't compile :-( -*/ -#define MAX_DMA_CHANNELS 8 -#define DMA_MODE_READ 0x44 /* I/O to memory, no autoinit, increment, single mode */ -#define DMA_MODE_WRITE 0x48 /* memory to I/O, no autoinit, increment, single mode */ -#define DMA_MODE_CASCADE 0xC0 /* pass thru DREQ->HRQ, DACK<-HLDA only */ - -#define DMA_AUTOINIT 0x10 - -/* 8237 DMA controllers */ -#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */ -#define IO_DMA2_BASE 0xC0 /* 16 bit master DMA, ch 4(=slave input)..7 */ - -/* DMA controller registers */ -#define DMA1_CMD_REG 0x08 /* command register (w) */ -#define DMA1_STAT_REG 0x08 /* status register (r) */ -#define DMA1_REQ_REG 0x09 /* request register (w) */ -#define DMA1_MASK_REG 0x0A /* single-channel mask (w) */ -#define DMA1_MODE_REG 0x0B /* mode register (w) */ -#define DMA1_CLEAR_FF_REG 0x0C /* clear pointer flip-flop (w) */ -#define DMA1_TEMP_REG 0x0D /* Temporary Register (r) */ -#define DMA1_RESET_REG 0x0D /* Master Clear (w) */ -#define DMA1_CLR_MASK_REG 0x0E /* Clear Mask */ -#define DMA1_MASK_ALL_REG 0x0F /* all-channels mask (w) */ -#define DMA1_EXT_MODE_REG (0x400 | DMA1_MODE_REG) - -#define DMA2_CMD_REG 0xD0 /* command register (w) */ -#define DMA2_STAT_REG 0xD0 /* status register (r) */ -#define DMA2_REQ_REG 0xD2 /* request register (w) */ -#define DMA2_MASK_REG 0xD4 /* single-channel mask (w) */ -#define DMA2_MODE_REG 0xD6 /* mode register (w) */ -#define DMA2_CLEAR_FF_REG 0xD8 /* clear pointer flip-flop (w) */ -#define DMA2_TEMP_REG 0xDA /* Temporary Register (r) */ -#define DMA2_RESET_REG 0xDA /* Master Clear (w) */ -#define DMA2_CLR_MASK_REG 0xDC /* Clear Mask */ -#define DMA2_MASK_ALL_REG 0xDE /* all-channels mask (w) */ -#define DMA2_EXT_MODE_REG (0x400 | DMA2_MODE_REG) - -static __inline__ unsigned long claim_dma_lock(void) -{ - return 0; -} - -static __inline__ void release_dma_lock(unsigned long flags) -{ -} - - -/* Get DMA residue count. After a DMA transfer, this - * should return zero. Reading this while a DMA transfer is - * still in progress will return unpredictable results. - * If called before the channel has been used, it may return 1. - * Otherwise, it returns the number of _bytes_ left to transfer. - * - * Assumes DMA flip-flop is clear. - */ -static __inline__ int get_dma_residue(unsigned int dmanr) -{ - unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE - : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE; - - /* using short to get 16-bit wrap around */ - unsigned short count; - - count = 1 + dma_inb(io_port); - count += dma_inb(io_port) << 8; - - return (dmanr<=3)? count : (count<<1); -} - -/* enable/disable a specific DMA channel */ -static __inline__ void enable_dma(unsigned int dmanr) -{ -#ifdef CONFIG_SUPERIO - if (dmanr<=3) - dma_outb(dmanr, DMA1_MASK_REG); - else - dma_outb(dmanr & 3, DMA2_MASK_REG); -#endif -} - -static __inline__ void disable_dma(unsigned int dmanr) -{ -#ifdef CONFIG_SUPERIO - if (dmanr<=3) - dma_outb(dmanr | 4, DMA1_MASK_REG); - else - dma_outb((dmanr & 3) | 4, DMA2_MASK_REG); -#endif -} - -/* reserve a DMA channel */ -#define request_dma(dmanr, device_id) (0) - -/* Clear the 'DMA Pointer Flip Flop'. - * Write 0 for LSB/MSB, 1 for MSB/LSB access. - * Use this once to initialize the FF to a known state. - * After that, keep track of it. :-) - * --- In order to do that, the DMA routines below should --- - * --- only be used while holding the DMA lock ! --- - */ -static __inline__ void clear_dma_ff(unsigned int dmanr) -{ -} - -/* set mode (above) for a specific DMA channel */ -static __inline__ void set_dma_mode(unsigned int dmanr, char mode) -{ -} - -/* Set only the page register bits of the transfer address. - * This is used for successive transfers when we know the contents of - * the lower 16 bits of the DMA current address register, but a 64k boundary - * may have been crossed. - */ -static __inline__ void set_dma_page(unsigned int dmanr, char pagenr) -{ -} - - -/* Set transfer address & page bits for specific DMA channel. - * Assumes dma flipflop is clear. - */ -static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int a) -{ -} - - -/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for - * a specific DMA channel. - * You must ensure the parameters are valid. - * NOTE: from a manual: "the number of transfers is one more - * than the initial word count"! This is taken into account. - * Assumes dma flip-flop is clear. - * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7. - */ -static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count) -{ -} - - -#define free_dma(dmanr) - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - -#endif /* _ASM_DMA_H */ diff --git a/include/asm-parisc/eisa_bus.h b/include/asm-parisc/eisa_bus.h deleted file mode 100644 index 201085f83dd5..000000000000 --- a/include/asm-parisc/eisa_bus.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * eisa_bus.h interface between the eisa BA driver and the bus enumerator - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Copyright (c) 2002 Daniel Engstrom <5116@telia.com> - * - */ - -#ifndef ASM_EISA_H -#define ASM_EISA_H - -extern void eisa_make_irq_level(int num); -extern void eisa_make_irq_edge(int num); -extern int eisa_enumerator(unsigned long eeprom_addr, - struct resource *io_parent, - struct resource *mem_parent); -extern int eisa_eeprom_init(unsigned long addr); - -#endif diff --git a/include/asm-parisc/eisa_eeprom.h b/include/asm-parisc/eisa_eeprom.h deleted file mode 100644 index 9c9da980402a..000000000000 --- a/include/asm-parisc/eisa_eeprom.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com> - * - */ - -#ifndef ASM_EISA_EEPROM_H -#define ASM_EISA_EEPROM_H - -extern void __iomem *eisa_eeprom_addr; - -#define HPEE_MAX_LENGTH 0x2000 /* maximum eeprom length */ - -#define HPEE_SLOT_INFO(slot) (20+(48*slot)) - -struct eeprom_header -{ - - u_int32_t num_writes; /* number of writes */ - u_int8_t flags; /* flags, usage? */ - u_int8_t ver_maj; - u_int8_t ver_min; - u_int8_t num_slots; /* number of EISA slots in system */ - u_int16_t csum; /* checksum, I don't know how to calulate this */ - u_int8_t pad[10]; -} __attribute__ ((packed)); - - -struct eeprom_eisa_slot_info -{ - u_int32_t eisa_slot_id; - u_int32_t config_data_offset; - u_int32_t num_writes; - u_int16_t csum; - u_int16_t num_functions; - u_int16_t config_data_length; - - /* bits 0..3 are the duplicate slot id */ -#define HPEE_SLOT_INFO_EMBEDDED 0x10 -#define HPEE_SLOT_INFO_VIRTUAL 0x20 -#define HPEE_SLOT_INFO_NO_READID 0x40 -#define HPEE_SLOT_INFO_DUPLICATE 0x80 - u_int8_t slot_info; - -#define HPEE_SLOT_FEATURES_ENABLE 0x01 -#define HPEE_SLOT_FEATURES_IOCHK 0x02 -#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80 - u_int8_t slot_features; - - u_int8_t ver_min; - u_int8_t ver_maj; - -#define HPEE_FUNCTION_INFO_HAVE_TYPE 0x01 -#define HPEE_FUNCTION_INFO_HAVE_MEMORY 0x02 -#define HPEE_FUNCTION_INFO_HAVE_IRQ 0x04 -#define HPEE_FUNCTION_INFO_HAVE_DMA 0x08 -#define HPEE_FUNCTION_INFO_HAVE_PORT 0x10 -#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20 -/* I think there are two slighty different - * versions of the function_info field - * one int the fixed header and one optional - * in the parsed slot data area */ -#define HPEE_FUNCTION_INFO_HAVE_FUNCTION 0x01 -#define HPEE_FUNCTION_INFO_F_DISABLED 0x80 -#define HPEE_FUNCTION_INFO_CFG_FREE_FORM 0x40 - u_int8_t function_info; - -#define HPEE_FLAG_BOARD_IS_ISA 0x01 /* flag and minor version for isa board */ - u_int8_t flags; - u_int8_t pad[24]; -} __attribute__ ((packed)); - - -#define HPEE_MEMORY_MAX_ENT 9 -/* memory descriptor: byte 0 */ -#define HPEE_MEMORY_WRITABLE 0x01 -#define HPEE_MEMORY_CACHABLE 0x02 -#define HPEE_MEMORY_TYPE_MASK 0x18 -#define HPEE_MEMORY_TYPE_SYS 0x00 -#define HPEE_MEMORY_TYPE_EXP 0x08 -#define HPEE_MEMORY_TYPE_VIR 0x10 -#define HPEE_MEMORY_TYPE_OTH 0x18 -#define HPEE_MEMORY_SHARED 0x20 -#define HPEE_MEMORY_MORE 0x80 - -/* memory descriptor: byte 1 */ -#define HPEE_MEMORY_WIDTH_MASK 0x03 -#define HPEE_MEMORY_WIDTH_BYTE 0x00 -#define HPEE_MEMORY_WIDTH_WORD 0x01 -#define HPEE_MEMORY_WIDTH_DWORD 0x02 -#define HPEE_MEMORY_DECODE_MASK 0x0c -#define HPEE_MEMORY_DECODE_20BITS 0x00 -#define HPEE_MEMORY_DECODE_24BITS 0x04 -#define HPEE_MEMORY_DECODE_32BITS 0x08 -/* byte 2 and 3 are a 16bit LE value - * containging the memory size in kilobytes */ -/* byte 4,5,6 are a 24bit LE value - * containing the memory base address */ - - -#define HPEE_IRQ_MAX_ENT 7 -/* Interrupt entry: byte 0 */ -#define HPEE_IRQ_CHANNEL_MASK 0xf -#define HPEE_IRQ_TRIG_LEVEL 0x20 -#define HPEE_IRQ_MORE 0x80 -/* byte 1 seems to be unused */ - -#define HPEE_DMA_MAX_ENT 4 - -/* dma entry: byte 0 */ -#define HPEE_DMA_CHANNEL_MASK 7 -#define HPEE_DMA_SIZE_MASK 0xc -#define HPEE_DMA_SIZE_BYTE 0x0 -#define HPEE_DMA_SIZE_WORD 0x4 -#define HPEE_DMA_SIZE_DWORD 0x8 -#define HPEE_DMA_SHARED 0x40 -#define HPEE_DMA_MORE 0x80 - -/* dma entry: byte 1 */ -#define HPEE_DMA_TIMING_MASK 0x30 -#define HPEE_DMA_TIMING_ISA 0x0 -#define HPEE_DMA_TIMING_TYPEA 0x10 -#define HPEE_DMA_TIMING_TYPEB 0x20 -#define HPEE_DMA_TIMING_TYPEC 0x30 - -#define HPEE_PORT_MAX_ENT 20 -/* port entry byte 0 */ -#define HPEE_PORT_SIZE_MASK 0x1f -#define HPEE_PORT_SHARED 0x40 -#define HPEE_PORT_MORE 0x80 -/* byte 1 and 2 is a 16bit LE value - * conating the start port number */ - -#define HPEE_PORT_INIT_MAX_LEN 60 /* in bytes here */ -/* port init entry byte 0 */ -#define HPEE_PORT_INIT_WIDTH_MASK 0x3 -#define HPEE_PORT_INIT_WIDTH_BYTE 0x0 -#define HPEE_PORT_INIT_WIDTH_WORD 0x1 -#define HPEE_PORT_INIT_WIDTH_DWORD 0x2 -#define HPEE_PORT_INIT_MASK 0x4 -#define HPEE_PORT_INIT_MORE 0x80 - -#define HPEE_SELECTION_MAX_ENT 26 - -#define HPEE_TYPE_MAX_LEN 80 - -#endif diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h deleted file mode 100644 index d0a4a8262818..000000000000 --- a/include/asm-parisc/elf.h +++ /dev/null @@ -1,342 +0,0 @@ -#ifndef __ASMPARISC_ELF_H -#define __ASMPARISC_ELF_H - -/* - * ELF register definitions.. - */ - -#include - -#define EM_PARISC 15 - -/* HPPA specific definitions. */ - -/* Legal values for e_flags field of Elf32_Ehdr. */ - -#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */ -#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */ -#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */ -#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */ -#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch - prediction. */ -#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */ -#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */ - -/* Defined values for `e_flags & EF_PARISC_ARCH' are: */ - -#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */ -#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */ -#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */ - -/* Additional section indices. */ - -#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared - symbols in ANSI C. */ -#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */ - -/* Legal values for sh_type field of Elf32_Shdr. */ - -#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */ -#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */ -#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */ - -/* Legal values for sh_flags field of Elf32_Shdr. */ - -#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ -#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ -#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ - -/* Legal values for ST_TYPE subfield of st_info (symbol type). */ - -#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ - -#define STT_HP_OPAQUE (STT_LOOS + 0x1) -#define STT_HP_STUB (STT_LOOS + 0x2) - -/* HPPA relocs. */ - -#define R_PARISC_NONE 0 /* No reloc. */ -#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ -#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ -#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ -#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */ -#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */ -#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */ -#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */ -#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */ -#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */ -#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */ -#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */ -#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */ -#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */ -#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */ -#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */ -#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */ -#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */ -#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */ -#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */ -#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */ -#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */ -#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */ -#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */ -#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ -#define R_PARISC_FPTR64 64 /* 64 bits function address. */ -#define R_PARISC_PLABEL32 65 /* 32 bits function address. */ -#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ -#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ -#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ -#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */ -#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */ -#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */ -#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */ -#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */ -#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */ -#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */ -#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */ -#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */ -#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */ -#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */ -#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */ -#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */ -#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */ -#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */ -#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */ -#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */ -#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */ -#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */ -#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */ -#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */ -#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */ -#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */ -#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */ -#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */ -#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */ -#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */ -#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */ -#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */ -#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */ -#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */ -#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */ -#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */ -#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */ -#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */ -#define R_PARISC_LORESERVE 128 -#define R_PARISC_COPY 128 /* Copy relocation. */ -#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */ -#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */ -#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */ -#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */ -#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */ -#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */ -#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/ -#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */ -#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */ -#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */ -#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */ -#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */ -#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */ -#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */ -#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */ -#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/ -#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/ -#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ -#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ -#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ -#define R_PARISC_HIRESERVE 255 - -#define PA_PLABEL_FDESC 0x02 /* bit set if PLABEL points to - * a function descriptor, not - * an address */ - -/* The following are PA function descriptors - * - * addr: the absolute address of the function - * gp: either the data pointer (r27) for non-PIC code or the - * the PLT pointer (r19) for PIC code */ - -/* Format for the Elf32 Function descriptor */ -typedef struct elf32_fdesc { - __u32 addr; - __u32 gp; -} Elf32_Fdesc; - -/* Format for the Elf64 Function descriptor */ -typedef struct elf64_fdesc { - __u64 dummy[2]; /* FIXME: nothing uses these, why waste - * the space */ - __u64 addr; - __u64 gp; -} Elf64_Fdesc; - -/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ - -#define PT_HP_TLS (PT_LOOS + 0x0) -#define PT_HP_CORE_NONE (PT_LOOS + 0x1) -#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) -#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) -#define PT_HP_CORE_COMM (PT_LOOS + 0x4) -#define PT_HP_CORE_PROC (PT_LOOS + 0x5) -#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) -#define PT_HP_CORE_STACK (PT_LOOS + 0x7) -#define PT_HP_CORE_SHM (PT_LOOS + 0x8) -#define PT_HP_CORE_MMF (PT_LOOS + 0x9) -#define PT_HP_PARALLEL (PT_LOOS + 0x10) -#define PT_HP_FASTBIND (PT_LOOS + 0x11) -#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) -#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) -#define PT_HP_STACK (PT_LOOS + 0x14) - -#define PT_PARISC_ARCHEXT 0x70000000 -#define PT_PARISC_UNWIND 0x70000001 - -/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */ - -#define PF_PARISC_SBP 0x08000000 - -#define PF_HP_PAGE_SIZE 0x00100000 -#define PF_HP_FAR_SHARED 0x00200000 -#define PF_HP_NEAR_SHARED 0x00400000 -#define PF_HP_CODE 0x01000000 -#define PF_HP_MODIFY 0x02000000 -#define PF_HP_LAZYSWAP 0x04000000 -#define PF_HP_SBP 0x08000000 - -/* - * The following definitions are those for 32-bit ELF binaries on a 32-bit - * kernel and for 64-bit binaries on a 64-bit kernel. To run 32-bit binaries - * on a 64-bit kernel, arch/parisc/kernel/binfmt_elf32.c defines these - * macros appropriately and then #includes binfmt_elf.c, which then includes - * this file. - */ -#ifndef ELF_CLASS - -/* - * This is used to ensure we don't load something for the wrong architecture. - * - * Note that this header file is used by default in fs/binfmt_elf.c. So - * the following macros are for the default case. However, for the 64 - * bit kernel we also support 32 bit parisc binaries. To do that - * arch/parisc/kernel/binfmt_elf32.c defines its own set of these - * macros, and then it includes fs/binfmt_elf.c to provide an alternate - * elf binary handler for 32 bit binaries (on the 64 bit kernel). - */ -#ifdef CONFIG_64BIT -#define ELF_CLASS ELFCLASS64 -#else -#define ELF_CLASS ELFCLASS32 -#endif - -typedef unsigned long elf_greg_t; - -/* - * This yields a string that ld.so will use to load implementation - * specific libraries for optimization. This is more specific in - * intent than poking at uname or /proc/cpuinfo. - */ - -#define ELF_PLATFORM ("PARISC\0") - -#define SET_PERSONALITY(ex, ibcs2) \ - current->personality = PER_LINUX; \ - current->thread.map_base = DEFAULT_MAP_BASE; \ - current->thread.task_size = DEFAULT_TASK_SIZE \ - -/* - * Fill in general registers in a core dump. This saves pretty - * much the same registers as hp-ux, although in a different order. - * Registers marked # below are not currently saved in pt_regs, so - * we use their current values here. - * - * gr0..gr31 - * sr0..sr7 - * iaoq0..iaoq1 - * iasq0..iasq1 - * cr11 (sar) - * cr19 (iir) - * cr20 (isr) - * cr21 (ior) - * # cr22 (ipsw) - * # cr0 (recovery counter) - * # cr24..cr31 (temporary registers) - * # cr8,9,12,13 (protection IDs) - * # cr10 (scr/ccr) - * # cr15 (ext int enable mask) - * - */ - -#define ELF_CORE_COPY_REGS(dst, pt) \ - memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \ - memcpy(dst + 0, pt->gr, 32 * sizeof(elf_greg_t)); \ - memcpy(dst + 32, pt->sr, 8 * sizeof(elf_greg_t)); \ - memcpy(dst + 40, pt->iaoq, 2 * sizeof(elf_greg_t)); \ - memcpy(dst + 42, pt->iasq, 2 * sizeof(elf_greg_t)); \ - dst[44] = pt->sar; dst[45] = pt->iir; \ - dst[46] = pt->isr; dst[47] = pt->ior; \ - dst[48] = mfctl(22); dst[49] = mfctl(0); \ - dst[50] = mfctl(24); dst[51] = mfctl(25); \ - dst[52] = mfctl(26); dst[53] = mfctl(27); \ - dst[54] = mfctl(28); dst[55] = mfctl(29); \ - dst[56] = mfctl(30); dst[57] = mfctl(31); \ - dst[58] = mfctl( 8); dst[59] = mfctl( 9); \ - dst[60] = mfctl(12); dst[61] = mfctl(13); \ - dst[62] = mfctl(10); dst[63] = mfctl(15); - -#endif /* ! ELF_CLASS */ - -#define ELF_NGREG 80 /* We only need 64 at present, but leave space - for expansion. */ -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -#define ELF_NFPREG 32 -typedef double elf_fpreg_t; -typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; - -struct task_struct; - -extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *); -#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs) - -struct pt_regs; /* forward declaration... */ - - -#define elf_check_arch(x) ((x)->e_machine == EM_PARISC && (x)->e_ident[EI_CLASS] == ELF_CLASS) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_PARISC -#define ELF_OSABI ELFOSABI_LINUX - -/* %r23 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a means for the dynamic - linker to call DT_FINI functions for shared libraries that have - been loaded before the code runs. - - So that we can use the same startup file with static executables, - we start programs with a value of 0 to indicate that there is no - such function. */ -#define ELF_PLAT_INIT(_r, load_addr) _r->gr[23] = 0 - -#define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 - -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. - - (2 * TASK_SIZE / 3) turns into something undefined when run through a - 32 bit preprocessor and in some cases results in the kernel trying to map - ld.so to the kernel virtual base. Use a sane value instead. /Jes - */ - -#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) - -/* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ - -#define ELF_HWCAP 0 - -#endif diff --git a/include/asm-parisc/emergency-restart.h b/include/asm-parisc/emergency-restart.h deleted file mode 100644 index 108d8c48e42e..000000000000 --- a/include/asm-parisc/emergency-restart.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_EMERGENCY_RESTART_H -#define _ASM_EMERGENCY_RESTART_H - -#include - -#endif /* _ASM_EMERGENCY_RESTART_H */ diff --git a/include/asm-parisc/errno.h b/include/asm-parisc/errno.h deleted file mode 100644 index e2f3ddc796be..000000000000 --- a/include/asm-parisc/errno.h +++ /dev/null @@ -1,124 +0,0 @@ -#ifndef _PARISC_ERRNO_H -#define _PARISC_ERRNO_H - -#include - -#define ENOMSG 35 /* No message of desired type */ -#define EIDRM 36 /* Identifier removed */ -#define ECHRNG 37 /* Channel number out of range */ -#define EL2NSYNC 38 /* Level 2 not synchronized */ -#define EL3HLT 39 /* Level 3 halted */ -#define EL3RST 40 /* Level 3 reset */ -#define ELNRNG 41 /* Link number out of range */ -#define EUNATCH 42 /* Protocol driver not attached */ -#define ENOCSI 43 /* No CSI structure available */ -#define EL2HLT 44 /* Level 2 halted */ -#define EDEADLK 45 /* Resource deadlock would occur */ -#define EDEADLOCK EDEADLK -#define ENOLCK 46 /* No record locks available */ -#define EILSEQ 47 /* Illegal byte sequence */ - -#define ENONET 50 /* Machine is not on the network */ -#define ENODATA 51 /* No data available */ -#define ETIME 52 /* Timer expired */ -#define ENOSR 53 /* Out of streams resources */ -#define ENOSTR 54 /* Device not a stream */ -#define ENOPKG 55 /* Package not installed */ - -#define ENOLINK 57 /* Link has been severed */ -#define EADV 58 /* Advertise error */ -#define ESRMNT 59 /* Srmount error */ -#define ECOMM 60 /* Communication error on send */ -#define EPROTO 61 /* Protocol error */ - -#define EMULTIHOP 64 /* Multihop attempted */ - -#define EDOTDOT 66 /* RFS specific error */ -#define EBADMSG 67 /* Not a data message */ -#define EUSERS 68 /* Too many users */ -#define EDQUOT 69 /* Quota exceeded */ -#define ESTALE 70 /* Stale NFS file handle */ -#define EREMOTE 71 /* Object is remote */ -#define EOVERFLOW 72 /* Value too large for defined data type */ - -/* these errnos are defined by Linux but not HPUX. */ - -#define EBADE 160 /* Invalid exchange */ -#define EBADR 161 /* Invalid request descriptor */ -#define EXFULL 162 /* Exchange full */ -#define ENOANO 163 /* No anode */ -#define EBADRQC 164 /* Invalid request code */ -#define EBADSLT 165 /* Invalid slot */ -#define EBFONT 166 /* Bad font file format */ -#define ENOTUNIQ 167 /* Name not unique on network */ -#define EBADFD 168 /* File descriptor in bad state */ -#define EREMCHG 169 /* Remote address changed */ -#define ELIBACC 170 /* Can not access a needed shared library */ -#define ELIBBAD 171 /* Accessing a corrupted shared library */ -#define ELIBSCN 172 /* .lib section in a.out corrupted */ -#define ELIBMAX 173 /* Attempting to link in too many shared libraries */ -#define ELIBEXEC 174 /* Cannot exec a shared library directly */ -#define ERESTART 175 /* Interrupted system call should be restarted */ -#define ESTRPIPE 176 /* Streams pipe error */ -#define EUCLEAN 177 /* Structure needs cleaning */ -#define ENOTNAM 178 /* Not a XENIX named type file */ -#define ENAVAIL 179 /* No XENIX semaphores available */ -#define EISNAM 180 /* Is a named type file */ -#define EREMOTEIO 181 /* Remote I/O error */ -#define ENOMEDIUM 182 /* No medium found */ -#define EMEDIUMTYPE 183 /* Wrong medium type */ -#define ENOKEY 184 /* Required key not available */ -#define EKEYEXPIRED 185 /* Key has expired */ -#define EKEYREVOKED 186 /* Key has been revoked */ -#define EKEYREJECTED 187 /* Key was rejected by service */ - -/* We now return you to your regularly scheduled HPUX. */ - -#define ENOSYM 215 /* symbol does not exist in executable */ -#define ENOTSOCK 216 /* Socket operation on non-socket */ -#define EDESTADDRREQ 217 /* Destination address required */ -#define EMSGSIZE 218 /* Message too long */ -#define EPROTOTYPE 219 /* Protocol wrong type for socket */ -#define ENOPROTOOPT 220 /* Protocol not available */ -#define EPROTONOSUPPORT 221 /* Protocol not supported */ -#define ESOCKTNOSUPPORT 222 /* Socket type not supported */ -#define EOPNOTSUPP 223 /* Operation not supported on transport endpoint */ -#define EPFNOSUPPORT 224 /* Protocol family not supported */ -#define EAFNOSUPPORT 225 /* Address family not supported by protocol */ -#define EADDRINUSE 226 /* Address already in use */ -#define EADDRNOTAVAIL 227 /* Cannot assign requested address */ -#define ENETDOWN 228 /* Network is down */ -#define ENETUNREACH 229 /* Network is unreachable */ -#define ENETRESET 230 /* Network dropped connection because of reset */ -#define ECONNABORTED 231 /* Software caused connection abort */ -#define ECONNRESET 232 /* Connection reset by peer */ -#define ENOBUFS 233 /* No buffer space available */ -#define EISCONN 234 /* Transport endpoint is already connected */ -#define ENOTCONN 235 /* Transport endpoint is not connected */ -#define ESHUTDOWN 236 /* Cannot send after transport endpoint shutdown */ -#define ETOOMANYREFS 237 /* Too many references: cannot splice */ -#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */ -#define ETIMEDOUT 238 /* Connection timed out */ -#define ECONNREFUSED 239 /* Connection refused */ -#define EREMOTERELEASE 240 /* Remote peer released connection */ -#define EHOSTDOWN 241 /* Host is down */ -#define EHOSTUNREACH 242 /* No route to host */ - -#define EALREADY 244 /* Operation already in progress */ -#define EINPROGRESS 245 /* Operation now in progress */ -#define EWOULDBLOCK 246 /* Operation would block (Linux returns EAGAIN) */ -#define ENOTEMPTY 247 /* Directory not empty */ -#define ENAMETOOLONG 248 /* File name too long */ -#define ELOOP 249 /* Too many symbolic links encountered */ -#define ENOSYS 251 /* Function not implemented */ - -#define ENOTSUP 252 /* Function not implemented (POSIX.4 / HPUX) */ -#define ECANCELLED 253 /* aio request was canceled before complete (POSIX.4 / HPUX) */ -#define ECANCELED ECANCELLED /* SuSv3 and Solaris wants one 'L' */ - -/* for robust mutexes */ -#define EOWNERDEAD 254 /* Owner died */ -#define ENOTRECOVERABLE 255 /* State not recoverable */ - - -#endif diff --git a/include/asm-parisc/fb.h b/include/asm-parisc/fb.h deleted file mode 100644 index 4d503a023ab2..000000000000 --- a/include/asm-parisc/fb.h +++ /dev/null @@ -1,19 +0,0 @@ -#ifndef _ASM_FB_H_ -#define _ASM_FB_H_ - -#include -#include -#include - -static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, - unsigned long off) -{ - pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE; -} - -static inline int fb_is_primary_device(struct fb_info *info) -{ - return 0; -} - -#endif /* _ASM_FB_H_ */ diff --git a/include/asm-parisc/fcntl.h b/include/asm-parisc/fcntl.h deleted file mode 100644 index 1e1c824764ee..000000000000 --- a/include/asm-parisc/fcntl.h +++ /dev/null @@ -1,39 +0,0 @@ -#ifndef _PARISC_FCNTL_H -#define _PARISC_FCNTL_H - -/* open/fcntl - O_SYNC is only implemented on blocks devices and on files - located on an ext2 file system */ -#define O_APPEND 000000010 -#define O_BLKSEEK 000000100 /* HPUX only */ -#define O_CREAT 000000400 /* not fcntl */ -#define O_EXCL 000002000 /* not fcntl */ -#define O_LARGEFILE 000004000 -#define O_SYNC 000100000 -#define O_NONBLOCK 000200004 /* HPUX has separate NDELAY & NONBLOCK */ -#define O_NOCTTY 000400000 /* not fcntl */ -#define O_DSYNC 001000000 /* HPUX only */ -#define O_RSYNC 002000000 /* HPUX only */ -#define O_NOATIME 004000000 -#define O_CLOEXEC 010000000 /* set close_on_exec */ - -#define O_DIRECTORY 000010000 /* must be a directory */ -#define O_NOFOLLOW 000000200 /* don't follow links */ -#define O_INVISIBLE 004000000 /* invisible I/O, for DMAPI/XDSM */ - -#define F_GETLK64 8 -#define F_SETLK64 9 -#define F_SETLKW64 10 - -#define F_GETOWN 11 /* for sockets. */ -#define F_SETOWN 12 /* for sockets. */ -#define F_SETSIG 13 /* for sockets. */ -#define F_GETSIG 14 /* for sockets. */ - -/* for posix fcntl() and lockf() */ -#define F_RDLCK 01 -#define F_WRLCK 02 -#define F_UNLCK 03 - -#include - -#endif diff --git a/include/asm-parisc/fixmap.h b/include/asm-parisc/fixmap.h deleted file mode 100644 index de3fe3a18229..000000000000 --- a/include/asm-parisc/fixmap.h +++ /dev/null @@ -1,30 +0,0 @@ -#ifndef _ASM_FIXMAP_H -#define _ASM_FIXMAP_H - -/* - * This file defines the locations of the fixed mappings on parisc. - * - * All of the values in this file are machine virtual addresses. - * - * All of the values in this file must be <4GB (because of assembly - * loading restrictions). If you place this region anywhere above - * __PAGE_OFFSET, you must adjust the memory map accordingly */ - -/* The alias region is used in kernel space to do copy/clear to or - * from areas congruently mapped with user space. It is 8MB large - * and must be 16MB aligned */ -#define TMPALIAS_MAP_START ((__PAGE_OFFSET) - 16*1024*1024) -/* This is the kernel area for all maps (vmalloc, dma etc.) most - * usually, it extends up to TMPALIAS_MAP_START. Virtual addresses - * 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */ -#define KERNEL_MAP_START (GATEWAY_PAGE_SIZE) -#define KERNEL_MAP_END (TMPALIAS_MAP_START) - -#ifndef __ASSEMBLY__ -extern void *vmalloc_start; -#define PCXL_DMA_MAP_SIZE (8*1024*1024) -#define VMALLOC_START ((unsigned long)vmalloc_start) -#define VMALLOC_END (KERNEL_MAP_END) -#endif /*__ASSEMBLY__*/ - -#endif /*_ASM_FIXMAP_H*/ diff --git a/include/asm-parisc/floppy.h b/include/asm-parisc/floppy.h deleted file mode 100644 index 4ca69f558fae..000000000000 --- a/include/asm-parisc/floppy.h +++ /dev/null @@ -1,271 +0,0 @@ -/* Architecture specific parts of the Floppy driver - * - * Linux/PA-RISC Project (http://www.parisc-linux.org/) - * Copyright (C) 2000 Matthew Wilcox (willy a debian . org) - * Copyright (C) 2000 Dave Kennedy - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_PARISC_FLOPPY_H -#define __ASM_PARISC_FLOPPY_H - -#include - - -/* - * The DMA channel used by the floppy controller cannot access data at - * addresses >= 16MB - * - * Went back to the 1MB limit, as some people had problems with the floppy - * driver otherwise. It doesn't matter much for performance anyway, as most - * floppy accesses go through the track buffer. - */ -#define _CROSS_64KB(a,s,vdma) \ -(!vdma && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64)) - -#define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1) - - -#define SW fd_routine[use_virtual_dma&1] -#define CSW fd_routine[can_use_virtual_dma & 1] - - -#define fd_inb(port) readb(port) -#define fd_outb(value, port) writeb(value, port) - -#define fd_request_dma() CSW._request_dma(FLOPPY_DMA,"floppy") -#define fd_free_dma() CSW._free_dma(FLOPPY_DMA) -#define fd_enable_irq() enable_irq(FLOPPY_IRQ) -#define fd_disable_irq() disable_irq(FLOPPY_IRQ) -#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL) -#define fd_get_dma_residue() SW._get_dma_residue(FLOPPY_DMA) -#define fd_dma_mem_alloc(size) SW._dma_mem_alloc(size) -#define fd_dma_setup(addr, size, mode, io) SW._dma_setup(addr, size, mode, io) - -#define FLOPPY_CAN_FALLBACK_ON_NODMA - -static int virtual_dma_count=0; -static int virtual_dma_residue=0; -static char *virtual_dma_addr=0; -static int virtual_dma_mode=0; -static int doing_pdma=0; - -static void floppy_hardint(int irq, void *dev_id, struct pt_regs * regs) -{ - register unsigned char st; - -#undef TRACE_FLPY_INT - -#ifdef TRACE_FLPY_INT - static int calls=0; - static int bytes=0; - static int dma_wait=0; -#endif - if (!doing_pdma) { - floppy_interrupt(irq, dev_id, regs); - return; - } - -#ifdef TRACE_FLPY_INT - if(!calls) - bytes = virtual_dma_count; -#endif - - { - register int lcount; - register char *lptr = virtual_dma_addr; - - for (lcount = virtual_dma_count; lcount; lcount--) { - st = fd_inb(virtual_dma_port+4) & 0xa0 ; - if (st != 0xa0) - break; - if (virtual_dma_mode) { - fd_outb(*lptr, virtual_dma_port+5); - } else { - *lptr = fd_inb(virtual_dma_port+5); - } - lptr++; - } - virtual_dma_count = lcount; - virtual_dma_addr = lptr; - st = fd_inb(virtual_dma_port+4); - } - -#ifdef TRACE_FLPY_INT - calls++; -#endif - if (st == 0x20) - return; - if (!(st & 0x20)) { - virtual_dma_residue += virtual_dma_count; - virtual_dma_count = 0; -#ifdef TRACE_FLPY_INT - printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n", - virtual_dma_count, virtual_dma_residue, calls, bytes, - dma_wait); - calls = 0; - dma_wait=0; -#endif - doing_pdma = 0; - floppy_interrupt(irq, dev_id, regs); - return; - } -#ifdef TRACE_FLPY_INT - if (!virtual_dma_count) - dma_wait++; -#endif -} - -static void fd_disable_dma(void) -{ - if(! (can_use_virtual_dma & 1)) - disable_dma(FLOPPY_DMA); - doing_pdma = 0; - virtual_dma_residue += virtual_dma_count; - virtual_dma_count=0; -} - -static int vdma_request_dma(unsigned int dmanr, const char * device_id) -{ - return 0; -} - -static void vdma_nop(unsigned int dummy) -{ -} - - -static int vdma_get_dma_residue(unsigned int dummy) -{ - return virtual_dma_count + virtual_dma_residue; -} - - -static int fd_request_irq(void) -{ - if(can_use_virtual_dma) - return request_irq(FLOPPY_IRQ, floppy_hardint, - IRQF_DISABLED, "floppy", NULL); - else - return request_irq(FLOPPY_IRQ, floppy_interrupt, - IRQF_DISABLED, "floppy", NULL); -} - -static unsigned long dma_mem_alloc(unsigned long size) -{ - return __get_dma_pages(GFP_KERNEL, get_order(size)); -} - - -static unsigned long vdma_mem_alloc(unsigned long size) -{ - return (unsigned long) vmalloc(size); - -} - -#define nodma_mem_alloc(size) vdma_mem_alloc(size) - -static void _fd_dma_mem_free(unsigned long addr, unsigned long size) -{ - if((unsigned int) addr >= (unsigned int) high_memory) - return vfree((void *)addr); - else - free_pages(addr, get_order(size)); -} - -#define fd_dma_mem_free(addr, size) _fd_dma_mem_free(addr, size) - -static void _fd_chose_dma_mode(char *addr, unsigned long size) -{ - if(can_use_virtual_dma == 2) { - if((unsigned int) addr >= (unsigned int) high_memory || - virt_to_bus(addr) >= 0x1000000 || - _CROSS_64KB(addr, size, 0)) - use_virtual_dma = 1; - else - use_virtual_dma = 0; - } else { - use_virtual_dma = can_use_virtual_dma & 1; - } -} - -#define fd_chose_dma_mode(addr, size) _fd_chose_dma_mode(addr, size) - - -static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io) -{ - doing_pdma = 1; - virtual_dma_port = io; - virtual_dma_mode = (mode == DMA_MODE_WRITE); - virtual_dma_addr = addr; - virtual_dma_count = size; - virtual_dma_residue = 0; - return 0; -} - -static int hard_dma_setup(char *addr, unsigned long size, int mode, int io) -{ -#ifdef FLOPPY_SANITY_CHECK - if (CROSS_64KB(addr, size)) { - printk("DMA crossing 64-K boundary %p-%p\n", addr, addr+size); - return -1; - } -#endif - /* actual, physical DMA */ - doing_pdma = 0; - clear_dma_ff(FLOPPY_DMA); - set_dma_mode(FLOPPY_DMA,mode); - set_dma_addr(FLOPPY_DMA,virt_to_bus(addr)); - set_dma_count(FLOPPY_DMA,size); - enable_dma(FLOPPY_DMA); - return 0; -} - -static struct fd_routine_l { - int (*_request_dma)(unsigned int dmanr, const char * device_id); - void (*_free_dma)(unsigned int dmanr); - int (*_get_dma_residue)(unsigned int dummy); - unsigned long (*_dma_mem_alloc) (unsigned long size); - int (*_dma_setup)(char *addr, unsigned long size, int mode, int io); -} fd_routine[] = { - { - request_dma, - free_dma, - get_dma_residue, - dma_mem_alloc, - hard_dma_setup - }, - { - vdma_request_dma, - vdma_nop, - vdma_get_dma_residue, - vdma_mem_alloc, - vdma_dma_setup - } -}; - - -static int FDC1 = 0x3f0; /* Lies. Floppy controller is memory mapped, not io mapped */ -static int FDC2 = -1; - -#define FLOPPY0_TYPE 0 -#define FLOPPY1_TYPE 0 - -#define N_FDC 1 -#define N_DRIVE 8 - -#define EXTRA_FLOPPY_PARAMS - -#endif /* __ASM_PARISC_FLOPPY_H */ diff --git a/include/asm-parisc/futex.h b/include/asm-parisc/futex.h deleted file mode 100644 index 0c705c3a55ef..000000000000 --- a/include/asm-parisc/futex.h +++ /dev/null @@ -1,77 +0,0 @@ -#ifndef _ASM_PARISC_FUTEX_H -#define _ASM_PARISC_FUTEX_H - -#ifdef __KERNEL__ - -#include -#include -#include - -static inline int -futex_atomic_op_inuser (int encoded_op, int __user *uaddr) -{ - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; - int oparg = (encoded_op << 8) >> 20; - int cmparg = (encoded_op << 20) >> 20; - int oldval = 0, ret; - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; - - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - - pagefault_disable(); - - switch (op) { - case FUTEX_OP_SET: - case FUTEX_OP_ADD: - case FUTEX_OP_OR: - case FUTEX_OP_ANDN: - case FUTEX_OP_XOR: - default: - ret = -ENOSYS; - } - - pagefault_enable(); - - if (!ret) { - switch (cmp) { - case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; - case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; - case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; - case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; - case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; - case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; - default: ret = -ENOSYS; - } - } - return ret; -} - -/* Non-atomic version */ -static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) -{ - int err = 0; - int uval; - - /* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is - * our gateway page, and causes no end of trouble... - */ - if (segment_eq(KERNEL_DS, get_fs()) && !uaddr) - return -EFAULT; - - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - - err = get_user(uval, uaddr); - if (err) return -EFAULT; - if (uval == oldval) - err = put_user(newval, uaddr); - if (err) return -EFAULT; - return uval; -} - -#endif /*__KERNEL__*/ -#endif /*_ASM_PARISC_FUTEX_H*/ diff --git a/include/asm-parisc/grfioctl.h b/include/asm-parisc/grfioctl.h deleted file mode 100644 index 671e06042b40..000000000000 --- a/include/asm-parisc/grfioctl.h +++ /dev/null @@ -1,113 +0,0 @@ -/* Architecture specific parts of HP's STI (framebuffer) driver. - * Structures are HP-UX compatible for XFree86 usage. - * - * Linux/PA-RISC Project (http://www.parisc-linux.org/) - * Copyright (C) 2001 Helge Deller (deller a parisc-linux org) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef __ASM_PARISC_GRFIOCTL_H -#define __ASM_PARISC_GRFIOCTL_H - -/* upper 32 bits of graphics id (HP/UX identifier) */ - -#define GRFGATOR 8 -#define S9000_ID_S300 9 -#define GRFBOBCAT 9 -#define GRFCATSEYE 9 -#define S9000_ID_98720 10 -#define GRFRBOX 10 -#define S9000_ID_98550 11 -#define GRFFIREEYE 11 -#define S9000_ID_A1096A 12 -#define GRFHYPERION 12 -#define S9000_ID_FRI 13 -#define S9000_ID_98730 14 -#define GRFDAVINCI 14 -#define S9000_ID_98705 0x26C08070 /* Tigershark */ -#define S9000_ID_98736 0x26D148AB -#define S9000_ID_A1659A 0x26D1482A /* CRX 8 plane color (=ELK) */ -#define S9000_ID_ELK S9000_ID_A1659A -#define S9000_ID_A1439A 0x26D148EE /* CRX24 = CRX+ (24-plane color) */ -#define S9000_ID_A1924A 0x26D1488C /* GRX gray-scale */ -#define S9000_ID_ELM S9000_ID_A1924A -#define S9000_ID_98765 0x27480DEF -#define S9000_ID_ELK_768 0x27482101 -#define S9000_ID_STINGER 0x27A4A402 -#define S9000_ID_TIMBER 0x27F12392 /* Bushmaster (710) Graphics */ -#define S9000_ID_TOMCAT 0x27FCCB6D /* dual-headed ELK (Dual CRX) */ -#define S9000_ID_ARTIST 0x2B4DED6D /* Artist (Gecko/712 & 715) onboard Graphics */ -#define S9000_ID_HCRX 0x2BCB015A /* Hyperdrive/Hyperbowl (A4071A) Graphics */ -#define CRX24_OVERLAY_PLANES 0x920825AA /* Overlay planes on CRX24 */ - -#define CRT_ID_ELK_1024 S9000_ID_ELK_768 /* Elk 1024x768 CRX */ -#define CRT_ID_ELK_1280 S9000_ID_A1659A /* Elk 1280x1024 CRX */ -#define CRT_ID_ELK_1024DB 0x27849CA5 /* Elk 1024x768 double buffer */ -#define CRT_ID_ELK_GS S9000_ID_A1924A /* Elk 1280x1024 GreyScale */ -#define CRT_ID_CRX24 S9000_ID_A1439A /* Piranha */ -#define CRT_ID_VISUALIZE_EG 0x2D08C0A7 /* Graffiti, A4450A (built-in B132+/B160L) */ -#define CRT_ID_THUNDER 0x2F23E5FC /* Thunder 1 VISUALIZE 48*/ -#define CRT_ID_THUNDER2 0x2F8D570E /* Thunder 2 VISUALIZE 48 XP*/ -#define CRT_ID_HCRX S9000_ID_HCRX /* Hyperdrive HCRX */ -#define CRT_ID_CRX48Z S9000_ID_STINGER /* Stinger */ -#define CRT_ID_DUAL_CRX S9000_ID_TOMCAT /* Tomcat */ -#define CRT_ID_PVRX S9000_ID_98705 /* Tigershark */ -#define CRT_ID_TIMBER S9000_ID_TIMBER /* Timber (710 builtin) */ -#define CRT_ID_TVRX S9000_ID_98765 /* TVRX (gto/falcon) */ -#define CRT_ID_ARTIST S9000_ID_ARTIST /* Artist */ -#define CRT_ID_SUMMIT 0x2FC1066B /* Summit FX2, FX4, FX6 ... */ -#define CRT_ID_LEGO 0x35ACDA30 /* Lego FX5, FX10 ... */ -#define CRT_ID_PINNACLE 0x35ACDA16 /* Pinnacle FXe */ - -/* structure for ioctl(GCDESCRIBE) */ - -#define gaddr_t unsigned long /* FIXME: PA2.0 (64bit) portable ? */ - -struct grf_fbinfo { - unsigned int id; /* upper 32 bits of graphics id */ - unsigned int mapsize; /* mapped size of framebuffer */ - unsigned int dwidth, dlength;/* x and y sizes */ - unsigned int width, length; /* total x and total y size */ - unsigned int xlen; /* x pitch size */ - unsigned int bpp, bppu; /* bits per pixel and used bpp */ - unsigned int npl, nplbytes; /* # of planes and bytes per plane */ - char name[32]; /* name of the device (from ROM) */ - unsigned int attr; /* attributes */ - gaddr_t fbbase, regbase;/* framebuffer and register base addr */ - gaddr_t regions[6]; /* region bases */ -}; - -#define GCID _IOR('G', 0, int) -#define GCON _IO('G', 1) -#define GCOFF _IO('G', 2) -#define GCAON _IO('G', 3) -#define GCAOFF _IO('G', 4) -#define GCMAP _IOWR('G', 5, int) -#define GCUNMAP _IOWR('G', 6, int) -#define GCMAP_HPUX _IO('G', 5) -#define GCUNMAP_HPUX _IO('G', 6) -#define GCLOCK _IO('G', 7) -#define GCUNLOCK _IO('G', 8) -#define GCLOCK_MINIMUM _IO('G', 9) -#define GCUNLOCK_MINIMUM _IO('G', 10) -#define GCSTATIC_CMAP _IO('G', 11) -#define GCVARIABLE_CMAP _IO('G', 12) -#define GCTERM _IOWR('G',20,int) /* multi-headed Tomcat */ -#define GCDESCRIBE _IOR('G', 21, struct grf_fbinfo) -#define GCFASTLOCK _IO('G', 26) - -#endif /* __ASM_PARISC_GRFIOCTL_H */ - diff --git a/include/asm-parisc/hardirq.h b/include/asm-parisc/hardirq.h deleted file mode 100644 index ce93133d5112..000000000000 --- a/include/asm-parisc/hardirq.h +++ /dev/null @@ -1,29 +0,0 @@ -/* hardirq.h: PA-RISC hard IRQ support. - * - * Copyright (C) 2001 Matthew Wilcox - * - * The locking is really quite interesting. There's a cpu-local - * count of how many interrupts are being handled, and a global - * lock. An interrupt can only be serviced if the global lock - * is free. You can't be sure no more interrupts are being - * serviced until you've acquired the lock and then checked - * all the per-cpu interrupt counts are all zero. It's a specialised - * br_lock, and that's exactly how Sparc does it. We don't because - * it's more locking for us. This way is lock-free in the interrupt path. - */ - -#ifndef _PARISC_HARDIRQ_H -#define _PARISC_HARDIRQ_H - -#include -#include - -typedef struct { - unsigned long __softirq_pending; /* set_bit is used on this */ -} ____cacheline_aligned irq_cpustat_t; - -#include /* Standard mappings for irq_cpustat_t above */ - -void ack_bad_irq(unsigned int irq); - -#endif /* _PARISC_HARDIRQ_H */ diff --git a/include/asm-parisc/hardware.h b/include/asm-parisc/hardware.h deleted file mode 100644 index 4e9626836bab..000000000000 --- a/include/asm-parisc/hardware.h +++ /dev/null @@ -1,127 +0,0 @@ -#ifndef _PARISC_HARDWARE_H -#define _PARISC_HARDWARE_H - -#include -#include - -#define HWTYPE_ANY_ID PA_HWTYPE_ANY_ID -#define HVERSION_ANY_ID PA_HVERSION_ANY_ID -#define HVERSION_REV_ANY_ID PA_HVERSION_REV_ANY_ID -#define SVERSION_ANY_ID PA_SVERSION_ANY_ID - -struct hp_hardware { - unsigned short hw_type:5; /* HPHW_xxx */ - unsigned short hversion; - unsigned long sversion:28; - unsigned short opt; - const char name[80]; /* The hardware description */ -}; - -struct parisc_device; - -enum cpu_type { - pcx = 0, /* pa7000 pa 1.0 */ - pcxs = 1, /* pa7000 pa 1.1a */ - pcxt = 2, /* pa7100 pa 1.1b */ - pcxt_ = 3, /* pa7200 (t') pa 1.1c */ - pcxl = 4, /* pa7100lc pa 1.1d */ - pcxl2 = 5, /* pa7300lc pa 1.1e */ - pcxu = 6, /* pa8000 pa 2.0 */ - pcxu_ = 7, /* pa8200 (u+) pa 2.0 */ - pcxw = 8, /* pa8500 pa 2.0 */ - pcxw_ = 9, /* pa8600 (w+) pa 2.0 */ - pcxw2 = 10, /* pa8700 pa 2.0 */ - mako = 11, /* pa8800 pa 2.0 */ - mako2 = 12 /* pa8900 pa 2.0 */ -}; - -extern const char * const cpu_name_version[][2]; /* mapping from enum cpu_type to strings */ - -struct parisc_driver; - -struct io_module { - volatile uint32_t nothing; /* reg 0 */ - volatile uint32_t io_eim; - volatile uint32_t io_dc_adata; - volatile uint32_t io_ii_cdata; - volatile uint32_t io_dma_link; /* reg 4 */ - volatile uint32_t io_dma_command; - volatile uint32_t io_dma_address; - volatile uint32_t io_dma_count; - volatile uint32_t io_flex; /* reg 8 */ - volatile uint32_t io_spa_address; - volatile uint32_t reserved1[2]; - volatile uint32_t io_command; /* reg 12 */ - volatile uint32_t io_status; - volatile uint32_t io_control; - volatile uint32_t io_data; - volatile uint32_t reserved2; /* reg 16 */ - volatile uint32_t chain_addr; - volatile uint32_t sub_mask_clr; - volatile uint32_t reserved3[13]; - volatile uint32_t undefined[480]; - volatile uint32_t unpriv[512]; -}; - -struct bc_module { - volatile uint32_t unused1[12]; - volatile uint32_t io_command; - volatile uint32_t io_status; - volatile uint32_t io_control; - volatile uint32_t unused2[1]; - volatile uint32_t io_err_resp; - volatile uint32_t io_err_info; - volatile uint32_t io_err_req; - volatile uint32_t unused3[11]; - volatile uint32_t io_io_low; - volatile uint32_t io_io_high; -}; - -#define HPHW_NPROC 0 -#define HPHW_MEMORY 1 -#define HPHW_B_DMA 2 -#define HPHW_OBSOLETE 3 -#define HPHW_A_DMA 4 -#define HPHW_A_DIRECT 5 -#define HPHW_OTHER 6 -#define HPHW_BCPORT 7 -#define HPHW_CIO 8 -#define HPHW_CONSOLE 9 -#define HPHW_FIO 10 -#define HPHW_BA 11 -#define HPHW_IOA 12 -#define HPHW_BRIDGE 13 -#define HPHW_FABRIC 14 -#define HPHW_MC 15 -#define HPHW_FAULTY 31 - - -/* hardware.c: */ -extern const char *parisc_hardware_description(struct parisc_device_id *id); -extern enum cpu_type parisc_get_cpu_type(unsigned long hversion); - -struct pci_dev; - -/* drivers.c: */ -extern struct parisc_device *alloc_pa_dev(unsigned long hpa, - struct hardware_path *path); -extern int register_parisc_device(struct parisc_device *dev); -extern int register_parisc_driver(struct parisc_driver *driver); -extern int count_parisc_driver(struct parisc_driver *driver); -extern int unregister_parisc_driver(struct parisc_driver *driver); -extern void walk_central_bus(void); -extern const struct parisc_device *find_pa_parent_type(const struct parisc_device *, int); -extern void print_parisc_devices(void); -extern char *print_pa_hwpath(struct parisc_device *dev, char *path); -extern char *print_pci_hwpath(struct pci_dev *dev, char *path); -extern void get_pci_node_path(struct pci_dev *dev, struct hardware_path *path); -extern void init_parisc_bus(void); -extern struct device *hwpath_to_device(struct hardware_path *modpath); -extern void device_to_hwpath(struct device *dev, struct hardware_path *path); - - -/* inventory.c: */ -extern void do_memory_inventory(void); -extern void do_device_inventory(void); - -#endif /* _PARISC_HARDWARE_H */ diff --git a/include/asm-parisc/hw_irq.h b/include/asm-parisc/hw_irq.h deleted file mode 100644 index 6707f7df3921..000000000000 --- a/include/asm-parisc/hw_irq.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef _ASM_HW_IRQ_H -#define _ASM_HW_IRQ_H - -/* - * linux/include/asm/hw_irq.h - */ - -#endif diff --git a/include/asm-parisc/ide.h b/include/asm-parisc/ide.h deleted file mode 100644 index c246ef75017d..000000000000 --- a/include/asm-parisc/ide.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * linux/include/asm-parisc/ide.h - * - * Copyright (C) 1994-1996 Linus Torvalds & authors - */ - -/* - * This file contains the PARISC architecture specific IDE code. - */ - -#ifndef __ASM_PARISC_IDE_H -#define __ASM_PARISC_IDE_H - -#ifdef __KERNEL__ - -#define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id)) -#define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id)) -#define ide_request_region(from,extent,name) request_region((from), (extent), (name)) -#define ide_release_region(from,extent) release_region((from), (extent)) -/* Generic I/O and MEMIO string operations. */ - -#define __ide_insw insw -#define __ide_insl insl -#define __ide_outsw outsw -#define __ide_outsl outsl - -static __inline__ void __ide_mm_insw(void __iomem *port, void *addr, u32 count) -{ - while (count--) { - *(u16 *)addr = __raw_readw(port); - addr += 2; - } -} - -static __inline__ void __ide_mm_insl(void __iomem *port, void *addr, u32 count) -{ - while (count--) { - *(u32 *)addr = __raw_readl(port); - addr += 4; - } -} - -static __inline__ void __ide_mm_outsw(void __iomem *port, void *addr, u32 count) -{ - while (count--) { - __raw_writew(*(u16 *)addr, port); - addr += 2; - } -} - -static __inline__ void __ide_mm_outsl(void __iomem *port, void *addr, u32 count) -{ - while (count--) { - __raw_writel(*(u32 *)addr, port); - addr += 4; - } -} - -#endif /* __KERNEL__ */ - -#endif /* __ASM_PARISC_IDE_H */ diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h deleted file mode 100644 index 55ddb1842107..000000000000 --- a/include/asm-parisc/io.h +++ /dev/null @@ -1,293 +0,0 @@ -#ifndef _ASM_IO_H -#define _ASM_IO_H - -#include -#include - -extern unsigned long parisc_vmerge_boundary; -extern unsigned long parisc_vmerge_max_size; - -#define BIO_VMERGE_BOUNDARY parisc_vmerge_boundary -#define BIO_VMERGE_MAX_SIZE parisc_vmerge_max_size - -#define virt_to_phys(a) ((unsigned long)__pa(a)) -#define phys_to_virt(a) __va(a) -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - -static inline unsigned long isa_bus_to_virt(unsigned long addr) { - BUG(); - return 0; -} - -static inline unsigned long isa_virt_to_bus(void *addr) { - BUG(); - return 0; -} - -/* - * Memory mapped I/O - * - * readX()/writeX() do byteswapping and take an ioremapped address - * __raw_readX()/__raw_writeX() don't byteswap and take an ioremapped address. - * gsc_*() don't byteswap and operate on physical addresses; - * eg dev->hpa or 0xfee00000. - */ - -static inline unsigned char gsc_readb(unsigned long addr) -{ - long flags; - unsigned char ret; - - __asm__ __volatile__( - " rsm 2,%0\n" - " ldbx 0(%2),%1\n" - " mtsm %0\n" - : "=&r" (flags), "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned short gsc_readw(unsigned long addr) -{ - long flags; - unsigned short ret; - - __asm__ __volatile__( - " rsm 2,%0\n" - " ldhx 0(%2),%1\n" - " mtsm %0\n" - : "=&r" (flags), "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned int gsc_readl(unsigned long addr) -{ - u32 ret; - - __asm__ __volatile__( - " ldwax 0(%1),%0\n" - : "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned long long gsc_readq(unsigned long addr) -{ - unsigned long long ret; - -#ifdef CONFIG_64BIT - __asm__ __volatile__( - " ldda 0(%1),%0\n" - : "=r" (ret) : "r" (addr) ); -#else - /* two reads may have side effects.. */ - ret = ((u64) gsc_readl(addr)) << 32; - ret |= gsc_readl(addr+4); -#endif - return ret; -} - -static inline void gsc_writeb(unsigned char val, unsigned long addr) -{ - long flags; - __asm__ __volatile__( - " rsm 2,%0\n" - " stbs %1,0(%2)\n" - " mtsm %0\n" - : "=&r" (flags) : "r" (val), "r" (addr) ); -} - -static inline void gsc_writew(unsigned short val, unsigned long addr) -{ - long flags; - __asm__ __volatile__( - " rsm 2,%0\n" - " sths %1,0(%2)\n" - " mtsm %0\n" - : "=&r" (flags) : "r" (val), "r" (addr) ); -} - -static inline void gsc_writel(unsigned int val, unsigned long addr) -{ - __asm__ __volatile__( - " stwas %0,0(%1)\n" - : : "r" (val), "r" (addr) ); -} - -static inline void gsc_writeq(unsigned long long val, unsigned long addr) -{ -#ifdef CONFIG_64BIT - __asm__ __volatile__( - " stda %0,0(%1)\n" - : : "r" (val), "r" (addr) ); -#else - /* two writes may have side effects.. */ - gsc_writel(val >> 32, addr); - gsc_writel(val, addr+4); -#endif -} - -/* - * The standard PCI ioremap interfaces - */ - -extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); - -/* Most machines react poorly to I/O-space being cacheable... Instead let's - * define ioremap() in terms of ioremap_nocache(). - */ -static inline void __iomem * ioremap(unsigned long offset, unsigned long size) -{ - return __ioremap(offset, size, _PAGE_NO_CACHE); -} -#define ioremap_nocache(off, sz) ioremap((off), (sz)) - -extern void iounmap(const volatile void __iomem *addr); - -static inline unsigned char __raw_readb(const volatile void __iomem *addr) -{ - return (*(volatile unsigned char __force *) (addr)); -} -static inline unsigned short __raw_readw(const volatile void __iomem *addr) -{ - return *(volatile unsigned short __force *) addr; -} -static inline unsigned int __raw_readl(const volatile void __iomem *addr) -{ - return *(volatile unsigned int __force *) addr; -} -static inline unsigned long long __raw_readq(const volatile void __iomem *addr) -{ - return *(volatile unsigned long long __force *) addr; -} - -static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr) -{ - *(volatile unsigned char __force *) addr = b; -} -static inline void __raw_writew(unsigned short b, volatile void __iomem *addr) -{ - *(volatile unsigned short __force *) addr = b; -} -static inline void __raw_writel(unsigned int b, volatile void __iomem *addr) -{ - *(volatile unsigned int __force *) addr = b; -} -static inline void __raw_writeq(unsigned long long b, volatile void __iomem *addr) -{ - *(volatile unsigned long long __force *) addr = b; -} - -/* readb can never be const, so use __fswab instead of le*_to_cpu */ -#define readb(addr) __raw_readb(addr) -#define readw(addr) __fswab16(__raw_readw(addr)) -#define readl(addr) __fswab32(__raw_readl(addr)) -#define readq(addr) __fswab64(__raw_readq(addr)) -#define writeb(b, addr) __raw_writeb(b, addr) -#define writew(b, addr) __raw_writew(cpu_to_le16(b), addr) -#define writel(b, addr) __raw_writel(cpu_to_le32(b), addr) -#define writeq(b, addr) __raw_writeq(cpu_to_le64(b), addr) - -#define readb_relaxed(addr) readb(addr) -#define readw_relaxed(addr) readw(addr) -#define readl_relaxed(addr) readl(addr) -#define readq_relaxed(addr) readq(addr) - -#define mmiowb() do { } while (0) - -void memset_io(volatile void __iomem *addr, unsigned char val, int count); -void memcpy_fromio(void *dst, const volatile void __iomem *src, int count); -void memcpy_toio(volatile void __iomem *dst, const void *src, int count); - -/* Port-space IO */ - -#define inb_p inb -#define inw_p inw -#define inl_p inl -#define outb_p outb -#define outw_p outw -#define outl_p outl - -extern unsigned char eisa_in8(unsigned short port); -extern unsigned short eisa_in16(unsigned short port); -extern unsigned int eisa_in32(unsigned short port); -extern void eisa_out8(unsigned char data, unsigned short port); -extern void eisa_out16(unsigned short data, unsigned short port); -extern void eisa_out32(unsigned int data, unsigned short port); - -#if defined(CONFIG_PCI) -extern unsigned char inb(int addr); -extern unsigned short inw(int addr); -extern unsigned int inl(int addr); - -extern void outb(unsigned char b, int addr); -extern void outw(unsigned short b, int addr); -extern void outl(unsigned int b, int addr); -#elif defined(CONFIG_EISA) -#define inb eisa_in8 -#define inw eisa_in16 -#define inl eisa_in32 -#define outb eisa_out8 -#define outw eisa_out16 -#define outl eisa_out32 -#else -static inline char inb(unsigned long addr) -{ - BUG(); - return -1; -} - -static inline short inw(unsigned long addr) -{ - BUG(); - return -1; -} - -static inline int inl(unsigned long addr) -{ - BUG(); - return -1; -} - -#define outb(x, y) BUG() -#define outw(x, y) BUG() -#define outl(x, y) BUG() -#endif - -/* - * String versions of in/out ops: - */ -extern void insb (unsigned long port, void *dst, unsigned long count); -extern void insw (unsigned long port, void *dst, unsigned long count); -extern void insl (unsigned long port, void *dst, unsigned long count); -extern void outsb (unsigned long port, const void *src, unsigned long count); -extern void outsw (unsigned long port, const void *src, unsigned long count); -extern void outsl (unsigned long port, const void *src, unsigned long count); - - -/* IO Port space is : BBiiii where BB is HBA number. */ -#define IO_SPACE_LIMIT 0x00ffffff - -/* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32 - * bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit - * mode (essentially just sign extending. This macro takes in a 32 - * bit I/O address (still with the leading f) and outputs the correct - * value for either 32 or 64 bit mode */ -#define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL))) - -#include - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif diff --git a/include/asm-parisc/ioctl.h b/include/asm-parisc/ioctl.h deleted file mode 100644 index ec8efa02beda..000000000000 --- a/include/asm-parisc/ioctl.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Linux/PA-RISC Project (http://www.parisc-linux.org/) - * Copyright (C) 1999,2003 Matthew Wilcox < willy at debian . org > - * portions from "linux/ioctl.h for Linux" by H.H. Bergman. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - - -#ifndef _ASM_PARISC_IOCTL_H -#define _ASM_PARISC_IOCTL_H - -/* ioctl command encoding: 32 bits total, command in lower 16 bits, - * size of the parameter structure in the lower 14 bits of the - * upper 16 bits. - * Encoding the size of the parameter structure in the ioctl request - * is useful for catching programs compiled with old versions - * and to avoid overwriting user space outside the user buffer area. - * The highest 2 bits are reserved for indicating the ``access mode''. - * NOTE: This limits the max parameter size to 16kB -1 ! - */ - -/* - * Direction bits. - */ -#define _IOC_NONE 0U -#define _IOC_WRITE 2U -#define _IOC_READ 1U - -#include - -#endif /* _ASM_PARISC_IOCTL_H */ diff --git a/include/asm-parisc/ioctls.h b/include/asm-parisc/ioctls.h deleted file mode 100644 index 6747fad07a3e..000000000000 --- a/include/asm-parisc/ioctls.h +++ /dev/null @@ -1,90 +0,0 @@ -#ifndef __ARCH_PARISC_IOCTLS_H__ -#define __ARCH_PARISC_IOCTLS_H__ - -#include - -/* 0x54 is just a magic number to make these relatively unique ('T') */ - -#define TCGETS _IOR('T', 16, struct termios) /* TCGETATTR */ -#define TCSETS _IOW('T', 17, struct termios) /* TCSETATTR */ -#define TCSETSW _IOW('T', 18, struct termios) /* TCSETATTRD */ -#define TCSETSF _IOW('T', 19, struct termios) /* TCSETATTRF */ -#define TCGETA _IOR('T', 1, struct termio) -#define TCSETA _IOW('T', 2, struct termio) -#define TCSETAW _IOW('T', 3, struct termio) -#define TCSETAF _IOW('T', 4, struct termio) -#define TCSBRK _IO('T', 5) -#define TCXONC _IO('T', 6) -#define TCFLSH _IO('T', 7) -#define TIOCEXCL 0x540C -#define TIOCNXCL 0x540D -#define TIOCSCTTY 0x540E -#define TIOCGPGRP _IOR('T', 30, int) -#define TIOCSPGRP _IOW('T', 29, int) -#define TIOCOUTQ 0x5411 -#define TIOCSTI 0x5412 -#define TIOCGWINSZ 0x5413 -#define TIOCSWINSZ 0x5414 -#define TIOCMGET 0x5415 -#define TIOCMBIS 0x5416 -#define TIOCMBIC 0x5417 -#define TIOCMSET 0x5418 -#define TIOCGSOFTCAR 0x5419 -#define TIOCSSOFTCAR 0x541A -#define FIONREAD 0x541B -#define TIOCINQ FIONREAD -#define TIOCLINUX 0x541C -#define TIOCCONS 0x541D -#define TIOCGSERIAL 0x541E -#define TIOCSSERIAL 0x541F -#define TIOCPKT 0x5420 -#define FIONBIO 0x5421 -#define TIOCNOTTY 0x5422 -#define TIOCSETD 0x5423 -#define TIOCGETD 0x5424 -#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ -#define TIOCSBRK 0x5427 /* BSD compatibility */ -#define TIOCCBRK 0x5428 /* BSD compatibility */ -#define TIOCGSID _IOR('T', 20, int) /* Return the session ID of FD */ -#define TCGETS2 _IOR('T',0x2A, struct termios2) -#define TCSETS2 _IOW('T',0x2B, struct termios2) -#define TCSETSW2 _IOW('T',0x2C, struct termios2) -#define TCSETSF2 _IOW('T',0x2D, struct termios2) -#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ -#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ - -#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ -#define FIOCLEX 0x5451 -#define FIOASYNC 0x5452 -#define TIOCSERCONFIG 0x5453 -#define TIOCSERGWILD 0x5454 -#define TIOCSERSWILD 0x5455 -#define TIOCGLCKTRMIOS 0x5456 -#define TIOCSLCKTRMIOS 0x5457 -#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ -#define TIOCSERGETLSR 0x5459 /* Get line status register */ -#define TIOCSERGETMULTI 0x545A /* Get multiport config */ -#define TIOCSERSETMULTI 0x545B /* Set multiport config */ - -#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ -#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ -#define TIOCGHAYESESP 0x545E /* Get Hayes ESP configuration */ -#define TIOCSHAYESESP 0x545F /* Set Hayes ESP configuration */ -#define FIOQSIZE 0x5460 /* Get exact space used by quota */ - -#define TIOCSTART 0x5461 -#define TIOCSTOP 0x5462 -#define TIOCSLTC 0x5462 - -/* Used for packet mode */ -#define TIOCPKT_DATA 0 -#define TIOCPKT_FLUSHREAD 1 -#define TIOCPKT_FLUSHWRITE 2 -#define TIOCPKT_STOP 4 -#define TIOCPKT_START 8 -#define TIOCPKT_NOSTOP 16 -#define TIOCPKT_DOSTOP 32 - -#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ - -#endif /* _ASM_PARISC_IOCTLS_H */ diff --git a/include/asm-parisc/ipcbuf.h b/include/asm-parisc/ipcbuf.h deleted file mode 100644 index bd956c425785..000000000000 --- a/include/asm-parisc/ipcbuf.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef __PARISC_IPCBUF_H__ -#define __PARISC_IPCBUF_H__ - -/* - * The ipc64_perm structure for PA-RISC is almost identical to - * kern_ipc_perm as we have always had 32-bit UIDs and GIDs in the kernel. - * 'seq' has been changed from long to int so that it's the same size - * on 64-bit kernels as on 32-bit ones. - */ - -struct ipc64_perm -{ - key_t key; - uid_t uid; - gid_t gid; - uid_t cuid; - gid_t cgid; - unsigned short int __pad1; - mode_t mode; - unsigned short int __pad2; - unsigned short int seq; - unsigned int __pad3; - unsigned long long int __unused1; - unsigned long long int __unused2; -}; - -#endif /* __PARISC_IPCBUF_H__ */ diff --git a/include/asm-parisc/irq.h b/include/asm-parisc/irq.h deleted file mode 100644 index 399c81981ed5..000000000000 --- a/include/asm-parisc/irq.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * include/asm-parisc/irq.h - * - * Copyright 2005 Matthew Wilcox - */ - -#ifndef _ASM_PARISC_IRQ_H -#define _ASM_PARISC_IRQ_H - -#include -#include - -#define NO_IRQ (-1) - -#ifdef CONFIG_GSC -#define GSC_IRQ_BASE 16 -#define GSC_IRQ_MAX 63 -#define CPU_IRQ_BASE 64 -#else -#define CPU_IRQ_BASE 16 -#endif - -#define TIMER_IRQ (CPU_IRQ_BASE + 0) -#define IPI_IRQ (CPU_IRQ_BASE + 1) -#define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1)) - -#define NR_IRQS (CPU_IRQ_MAX + 1) - -static __inline__ int irq_canonicalize(int irq) -{ - return (irq == 2) ? 9 : irq; -} - -struct irq_chip; - -/* - * Some useful "we don't have to do anything here" handlers. Should - * probably be provided by the generic code. - */ -void no_ack_irq(unsigned int irq); -void no_end_irq(unsigned int irq); -void cpu_ack_irq(unsigned int irq); -void cpu_end_irq(unsigned int irq); - -extern int txn_alloc_irq(unsigned int nbits); -extern int txn_claim_irq(int); -extern unsigned int txn_alloc_data(unsigned int); -extern unsigned long txn_alloc_addr(unsigned int); -extern unsigned long txn_affinity_addr(unsigned int irq, int cpu); - -extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *); -extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest); - -/* soft power switch support (power.c) */ -extern struct tasklet_struct power_tasklet; - -#endif /* _ASM_PARISC_IRQ_H */ diff --git a/include/asm-parisc/irq_regs.h b/include/asm-parisc/irq_regs.h deleted file mode 100644 index 3dd9c0b70270..000000000000 --- a/include/asm-parisc/irq_regs.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/kdebug.h b/include/asm-parisc/kdebug.h deleted file mode 100644 index 6ece1b037665..000000000000 --- a/include/asm-parisc/kdebug.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/kmap_types.h b/include/asm-parisc/kmap_types.h deleted file mode 100644 index 806aae3c5338..000000000000 --- a/include/asm-parisc/kmap_types.h +++ /dev/null @@ -1,30 +0,0 @@ -#ifndef _ASM_KMAP_TYPES_H -#define _ASM_KMAP_TYPES_H - - -#ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) -#endif - -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; - -#undef D - -#endif diff --git a/include/asm-parisc/led.h b/include/asm-parisc/led.h deleted file mode 100644 index c3405ab9d60a..000000000000 --- a/include/asm-parisc/led.h +++ /dev/null @@ -1,42 +0,0 @@ -#ifndef LED_H -#define LED_H - -#define LED7 0x80 /* top (or furthest right) LED */ -#define LED6 0x40 -#define LED5 0x20 -#define LED4 0x10 -#define LED3 0x08 -#define LED2 0x04 -#define LED1 0x02 -#define LED0 0x01 /* bottom (or furthest left) LED */ - -#define LED_LAN_TX LED0 /* for LAN transmit activity */ -#define LED_LAN_RCV LED1 /* for LAN receive activity */ -#define LED_DISK_IO LED2 /* for disk activity */ -#define LED_HEARTBEAT LED3 /* heartbeat */ - -/* values for pdc_chassis_lcd_info_ret_block.model: */ -#define DISPLAY_MODEL_LCD 0 /* KittyHawk LED or LCD */ -#define DISPLAY_MODEL_NONE 1 /* no LED or LCD */ -#define DISPLAY_MODEL_LASI 2 /* LASI style 8 bit LED */ -#define DISPLAY_MODEL_OLD_ASP 0x7F /* faked: ASP style 8 x 1 bit LED (only very old ASP versions) */ - -#define LED_CMD_REG_NONE 0 /* NULL == no addr for the cmd register */ - -/* register_led_driver() */ -int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg); - -/* registers the LED regions for procfs */ -void __init register_led_regions(void); - -#ifdef CONFIG_CHASSIS_LCD_LED -/* writes a string to the LCD display (if possible on this h/w) */ -int lcd_print(const char *str); -#else -#define lcd_print(str) -#endif - -/* main LED initialization function (uses PDC) */ -int __init led_init(void); - -#endif /* LED_H */ diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h deleted file mode 100644 index 0b19a7242d0c..000000000000 --- a/include/asm-parisc/linkage.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef __ASM_PARISC_LINKAGE_H -#define __ASM_PARISC_LINKAGE_H - -#ifndef __ALIGN -#define __ALIGN .align 4 -#define __ALIGN_STR ".align 4" -#endif - -/* - * In parisc assembly a semicolon marks a comment while a - * exclamation mark is used to separate independent lines. - */ -#ifdef __ASSEMBLY__ - -#define ENTRY(name) \ - .export name !\ - ALIGN !\ -name: - -#ifdef CONFIG_64BIT -#define ENDPROC(name) \ - END(name) -#else -#define ENDPROC(name) \ - .type name, @function !\ - END(name) -#endif - -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_PARISC_LINKAGE_H */ diff --git a/include/asm-parisc/local.h b/include/asm-parisc/local.h deleted file mode 100644 index c11c530f74d0..000000000000 --- a/include/asm-parisc/local.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/machdep.h b/include/asm-parisc/machdep.h deleted file mode 100644 index a231c97d703e..000000000000 --- a/include/asm-parisc/machdep.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef _PARISC_MACHDEP_H -#define _PARISC_MACHDEP_H - -#include - -#define MACH_RESTART 1 -#define MACH_HALT 2 -#define MACH_POWER_ON 3 -#define MACH_POWER_OFF 4 - -extern struct notifier_block *mach_notifier; -extern void pa7300lc_init(void); - -extern void (*cpu_lpmc)(int, struct pt_regs *); - -#endif diff --git a/include/asm-parisc/mc146818rtc.h b/include/asm-parisc/mc146818rtc.h deleted file mode 100644 index adf41631449f..000000000000 --- a/include/asm-parisc/mc146818rtc.h +++ /dev/null @@ -1,9 +0,0 @@ -/* - * Machine dependent access functions for RTC registers. - */ -#ifndef _ASM_MC146818RTC_H -#define _ASM_MC146818RTC_H - -/* empty include file to satisfy the include in genrtc.c */ - -#endif /* _ASM_MC146818RTC_H */ diff --git a/include/asm-parisc/mckinley.h b/include/asm-parisc/mckinley.h deleted file mode 100644 index d1ea6f12915e..000000000000 --- a/include/asm-parisc/mckinley.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef ASM_PARISC_MCKINLEY_H -#define ASM_PARISC_MCKINLEY_H -#ifdef __KERNEL__ - -/* declared in arch/parisc/kernel/setup.c */ -extern struct proc_dir_entry * proc_mckinley_root; - -#endif /*__KERNEL__*/ -#endif /*ASM_PARISC_MCKINLEY_H*/ diff --git a/include/asm-parisc/mman.h b/include/asm-parisc/mman.h deleted file mode 100644 index defe752cc996..000000000000 --- a/include/asm-parisc/mman.h +++ /dev/null @@ -1,61 +0,0 @@ -#ifndef __PARISC_MMAN_H__ -#define __PARISC_MMAN_H__ - -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x03 /* Mask for type of mapping */ -#define MAP_FIXED 0x04 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x10 /* don't use a file */ - -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_GROWSDOWN 0x8000 /* stack-like segment */ -#define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x20000 /* do not block on IO */ - -#define MS_SYNC 1 /* synchronous memory sync */ -#define MS_ASYNC 2 /* sync memory asynchronously */ -#define MS_INVALIDATE 4 /* invalidate the caches */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#define MADV_NORMAL 0 /* no further special treatment */ -#define MADV_RANDOM 1 /* expect random page references */ -#define MADV_SEQUENTIAL 2 /* expect sequential page references */ -#define MADV_WILLNEED 3 /* will need these pages */ -#define MADV_DONTNEED 4 /* don't need these pages */ -#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */ -#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */ -#define MADV_VPS_INHERIT 7 /* Inherit parents page size */ - -/* common/generic parameters */ -#define MADV_REMOVE 9 /* remove these pages & resources */ -#define MADV_DONTFORK 10 /* don't inherit across fork */ -#define MADV_DOFORK 11 /* do inherit across fork */ - -/* The range 12-64 is reserved for page size specification. */ -#define MADV_4K_PAGES 12 /* Use 4K pages */ -#define MADV_16K_PAGES 14 /* Use 16K pages */ -#define MADV_64K_PAGES 16 /* Use 64K pages */ -#define MADV_256K_PAGES 18 /* Use 256K pages */ -#define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */ -#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */ -#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */ -#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */ - -/* compatibility flags */ -#define MAP_FILE 0 -#define MAP_VARIABLE 0 - -#endif /* __PARISC_MMAN_H__ */ diff --git a/include/asm-parisc/mmu.h b/include/asm-parisc/mmu.h deleted file mode 100644 index 6a310cf8b734..000000000000 --- a/include/asm-parisc/mmu.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _PARISC_MMU_H_ -#define _PARISC_MMU_H_ - -/* On parisc, we store the space id here */ -typedef unsigned long mm_context_t; - -#endif /* _PARISC_MMU_H_ */ diff --git a/include/asm-parisc/mmu_context.h b/include/asm-parisc/mmu_context.h deleted file mode 100644 index 85856c74ad1d..000000000000 --- a/include/asm-parisc/mmu_context.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef __PARISC_MMU_CONTEXT_H -#define __PARISC_MMU_CONTEXT_H - -#include -#include -#include -#include -#include -#include - -static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) -{ -} - -/* on PA-RISC, we actually have enough contexts to justify an allocator - * for them. prumpf */ - -extern unsigned long alloc_sid(void); -extern void free_sid(unsigned long); - -static inline int -init_new_context(struct task_struct *tsk, struct mm_struct *mm) -{ - BUG_ON(atomic_read(&mm->mm_users) != 1); - - mm->context = alloc_sid(); - return 0; -} - -static inline void -destroy_context(struct mm_struct *mm) -{ - free_sid(mm->context); - mm->context = 0; -} - -static inline void load_context(mm_context_t context) -{ - mtsp(context, 3); -#if SPACEID_SHIFT == 0 - mtctl(context << 1,8); -#else - mtctl(context >> (SPACEID_SHIFT - 1),8); -#endif -} - -static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) -{ - - if (prev != next) { - mtctl(__pa(next->pgd), 25); - load_context(next->context); - } -} - -#define deactivate_mm(tsk,mm) do { } while (0) - -static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) -{ - /* - * Activate_mm is our one chance to allocate a space id - * for a new mm created in the exec path. There's also - * some lazy tlb stuff, which is currently dead code, but - * we only allocate a space id if one hasn't been allocated - * already, so we should be OK. - */ - - BUG_ON(next == &init_mm); /* Should never happen */ - - if (next->context == 0) - next->context = alloc_sid(); - - switch_mm(prev,next,current); -} -#endif diff --git a/include/asm-parisc/mmzone.h b/include/asm-parisc/mmzone.h deleted file mode 100644 index 9608d2cf214a..000000000000 --- a/include/asm-parisc/mmzone.h +++ /dev/null @@ -1,73 +0,0 @@ -#ifndef _PARISC_MMZONE_H -#define _PARISC_MMZONE_H - -#ifdef CONFIG_DISCONTIGMEM - -#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */ -extern int npmem_ranges; - -struct node_map_data { - pg_data_t pg_data; -}; - -extern struct node_map_data node_data[]; - -#define NODE_DATA(nid) (&node_data[nid].pg_data) - -#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) -#define node_end_pfn(nid) \ -({ \ - pg_data_t *__pgdat = NODE_DATA(nid); \ - __pgdat->node_start_pfn + __pgdat->node_spanned_pages; \ -}) - -/* We have these possible memory map layouts: - * Astro: 0-3.75, 67.75-68, 4-64 - * zx1: 0-1, 257-260, 4-256 - * Stretch (N-class): 0-2, 4-32, 34-xxx - */ - -/* Since each 1GB can only belong to one region (node), we can create - * an index table for pfn to nid lookup; each entry in pfnnid_map - * represents 1GB, and contains the node that the memory belongs to. */ - -#define PFNNID_SHIFT (30 - PAGE_SHIFT) -#define PFNNID_MAP_MAX 512 /* support 512GB */ -extern unsigned char pfnnid_map[PFNNID_MAP_MAX]; - -#ifndef CONFIG_64BIT -#define pfn_is_io(pfn) ((pfn & (0xf0000000UL >> PAGE_SHIFT)) == (0xf0000000UL >> PAGE_SHIFT)) -#else -/* io can be 0xf0f0f0f0f0xxxxxx or 0xfffffffff0000000 */ -#define pfn_is_io(pfn) ((pfn & (0xf000000000000000UL >> PAGE_SHIFT)) == (0xf000000000000000UL >> PAGE_SHIFT)) -#endif - -static inline int pfn_to_nid(unsigned long pfn) -{ - unsigned int i; - unsigned char r; - - if (unlikely(pfn_is_io(pfn))) - return 0; - - i = pfn >> PFNNID_SHIFT; - BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0])); - r = pfnnid_map[i]; - BUG_ON(r == 0xff); - - return (int)r; -} - -static inline int pfn_valid(int pfn) -{ - int nid = pfn_to_nid(pfn); - - if (nid >= 0) - return (pfn < node_end_pfn(nid)); - return 0; -} - -#else /* !CONFIG_DISCONTIGMEM */ -#define MAX_PHYSMEM_RANGES 1 -#endif -#endif /* _PARISC_MMZONE_H */ diff --git a/include/asm-parisc/module.h b/include/asm-parisc/module.h deleted file mode 100644 index c2cb49e934c1..000000000000 --- a/include/asm-parisc/module.h +++ /dev/null @@ -1,32 +0,0 @@ -#ifndef _ASM_PARISC_MODULE_H -#define _ASM_PARISC_MODULE_H -/* - * This file contains the parisc architecture specific module code. - */ -#ifdef CONFIG_64BIT -#define Elf_Shdr Elf64_Shdr -#define Elf_Sym Elf64_Sym -#define Elf_Ehdr Elf64_Ehdr -#define Elf_Addr Elf64_Addr -#define Elf_Rela Elf64_Rela -#else -#define Elf_Shdr Elf32_Shdr -#define Elf_Sym Elf32_Sym -#define Elf_Ehdr Elf32_Ehdr -#define Elf_Addr Elf32_Addr -#define Elf_Rela Elf32_Rela -#endif - -struct unwind_table; - -struct mod_arch_specific -{ - unsigned long got_offset, got_count, got_max; - unsigned long fdesc_offset, fdesc_count, fdesc_max; - unsigned long stub_offset, stub_count, stub_max; - unsigned long init_stub_offset, init_stub_count, init_stub_max; - int unwind_section; - struct unwind_table *unwind; -}; - -#endif /* _ASM_PARISC_MODULE_H */ diff --git a/include/asm-parisc/msgbuf.h b/include/asm-parisc/msgbuf.h deleted file mode 100644 index fe88f2649418..000000000000 --- a/include/asm-parisc/msgbuf.h +++ /dev/null @@ -1,37 +0,0 @@ -#ifndef _PARISC_MSGBUF_H -#define _PARISC_MSGBUF_H - -/* - * The msqid64_ds structure for parisc architecture, copied from sparc. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; -#ifndef CONFIG_64BIT - unsigned int __pad1; -#endif - __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef CONFIG_64BIT - unsigned int __pad2; -#endif - __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef CONFIG_64BIT - unsigned int __pad3; -#endif - __kernel_time_t msg_ctime; /* last change time */ - unsigned int msg_cbytes; /* current number of bytes on queue */ - unsigned int msg_qnum; /* number of messages in queue */ - unsigned int msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned int __unused1; - unsigned int __unused2; -}; - -#endif /* _PARISC_MSGBUF_H */ diff --git a/include/asm-parisc/mutex.h b/include/asm-parisc/mutex.h deleted file mode 100644 index 458c1f7fbc18..000000000000 --- a/include/asm-parisc/mutex.h +++ /dev/null @@ -1,9 +0,0 @@ -/* - * Pull in the generic implementation for the mutex fastpath. - * - * TODO: implement optimized primitives instead, or leave the generic - * implementation in place, or pick the atomic_xchg() based generic - * implementation. (see asm-generic/mutex-xchg.h for details) - */ - -#include diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h deleted file mode 100644 index c3941f09a878..000000000000 --- a/include/asm-parisc/page.h +++ /dev/null @@ -1,173 +0,0 @@ -#ifndef _PARISC_PAGE_H -#define _PARISC_PAGE_H - -#include - -#if defined(CONFIG_PARISC_PAGE_SIZE_4KB) -# define PAGE_SHIFT 12 -#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB) -# define PAGE_SHIFT 14 -#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB) -# define PAGE_SHIFT 16 -#else -# error "unknown default kernel page size" -#endif -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - - -#ifndef __ASSEMBLY__ - -#include -#include - -#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -#define copy_page(to,from) copy_user_page_asm((void *)(to), (void *)(from)) - -struct page; - -void copy_user_page_asm(void *to, void *from); -void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, - struct page *pg); -void clear_user_page(void *page, unsigned long vaddr, struct page *pg); - -/* - * These are used to make use of C type-checking.. - */ -#define STRICT_MM_TYPECHECKS -#ifdef STRICT_MM_TYPECHECKS -typedef struct { unsigned long pte; -#if !defined(CONFIG_64BIT) - unsigned long future_flags; - /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY - to 2, but then strangely the identical 32bit kernel boots on a - c3000(pa20), but not any longer on a 715(pa11). - Still investigating... HelgeD. - */ -#endif -} pte_t; /* either 32 or 64bit */ - -/* NOTE: even on 64 bits, these entries are __u32 because we allocate - * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */ -typedef struct { __u32 pmd; } pmd_t; -typedef struct { __u32 pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; - -#define pte_val(x) ((x).pte) -/* These do not work lvalues, so make sure we don't use them as such. */ -#define pmd_val(x) ((x).pmd + 0) -#define pgd_val(x) ((x).pgd + 0) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#define __pmd_val_set(x,n) (x).pmd = (n) -#define __pgd_val_set(x,n) (x).pgd = (n) - -#else -/* - * .. while these make it easier on the compiler - */ -typedef unsigned long pte_t; -typedef __u32 pmd_t; -typedef __u32 pgd_t; -typedef unsigned long pgprot_t; - -#define pte_val(x) (x) -#define pmd_val(x) (x) -#define pgd_val(x) (x) -#define pgprot_val(x) (x) - -#define __pte(x) (x) -#define __pmd(x) (x) -#define __pgd(x) (x) -#define __pgprot(x) (x) - -#define __pmd_val_set(x,n) (x) = (n) -#define __pgd_val_set(x,n) (x) = (n) - -#endif /* STRICT_MM_TYPECHECKS */ - -typedef struct page *pgtable_t; - -typedef struct __physmem_range { - unsigned long start_pfn; - unsigned long pages; /* PAGE_SIZE pages */ -} physmem_range_t; - -extern physmem_range_t pmem_ranges[]; -extern int npmem_ranges; - -#endif /* !__ASSEMBLY__ */ - -/* WARNING: The definitions below must match exactly to sizeof(pte_t) - * etc - */ -#ifdef CONFIG_64BIT -#define BITS_PER_PTE_ENTRY 3 -#define BITS_PER_PMD_ENTRY 2 -#define BITS_PER_PGD_ENTRY 2 -#else -#define BITS_PER_PTE_ENTRY 3 -#define BITS_PER_PMD_ENTRY 2 -#define BITS_PER_PGD_ENTRY BITS_PER_PMD_ENTRY -#endif -#define PGD_ENTRY_SIZE (1UL << BITS_PER_PGD_ENTRY) -#define PMD_ENTRY_SIZE (1UL << BITS_PER_PMD_ENTRY) -#define PTE_ENTRY_SIZE (1UL << BITS_PER_PTE_ENTRY) - -#define LINUX_GATEWAY_SPACE 0 - -/* This governs the relationship between virtual and physical addresses. - * If you alter it, make sure to take care of our various fixed mapping - * segments in fixmap.h */ -#ifdef CONFIG_64BIT -#define __PAGE_OFFSET (0x40000000) /* 1GB */ -#else -#define __PAGE_OFFSET (0x10000000) /* 256MB */ -#endif - -#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) - -/* The size of the gateway page (we leave lots of room for expansion) */ -#define GATEWAY_PAGE_SIZE 0x4000 - -/* The start of the actual kernel binary---used in vmlinux.lds.S - * Leave some space after __PAGE_OFFSET for detecting kernel null - * ptr derefs */ -#define KERNEL_BINARY_TEXT_START (__PAGE_OFFSET + 0x100000) - -/* These macros don't work for 64-bit C code -- don't allow in C at all */ -#ifdef __ASSEMBLY__ -# define PA(x) ((x)-__PAGE_OFFSET) -# define VA(x) ((x)+__PAGE_OFFSET) -#endif -#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) - -#ifndef CONFIG_DISCONTIGMEM -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#endif /* CONFIG_DISCONTIGMEM */ - -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SHIFT 22 /* 4MB (is this fixed?) */ -#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#endif - -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include -#include - -#endif /* _PARISC_PAGE_H */ diff --git a/include/asm-parisc/param.h b/include/asm-parisc/param.h deleted file mode 100644 index 32e03d877858..000000000000 --- a/include/asm-parisc/param.h +++ /dev/null @@ -1,22 +0,0 @@ -#ifndef _ASMPARISC_PARAM_H -#define _ASMPARISC_PARAM_H - -#ifdef __KERNEL__ -#define HZ CONFIG_HZ -#define USER_HZ 100 /* some user API use "ticks" */ -#define CLOCKS_PER_SEC (USER_HZ) /* like times() */ -#endif - -#ifndef HZ -#define HZ 100 -#endif - -#define EXEC_PAGESIZE 4096 - -#ifndef NOGROUP -#define NOGROUP (-1) -#endif - -#define MAXHOSTNAMELEN 64 /* max length of hostname */ - -#endif diff --git a/include/asm-parisc/parisc-device.h b/include/asm-parisc/parisc-device.h deleted file mode 100644 index 7aa13f2add7a..000000000000 --- a/include/asm-parisc/parisc-device.h +++ /dev/null @@ -1,64 +0,0 @@ -#ifndef _ASM_PARISC_PARISC_DEVICE_H_ -#define _ASM_PARISC_PARISC_DEVICE_H_ - -#include - -struct parisc_device { - struct resource hpa; /* Hard Physical Address */ - struct parisc_device_id id; - struct parisc_driver *driver; /* Driver for this device */ - char name[80]; /* The hardware description */ - int irq; - int aux_irq; /* Some devices have a second IRQ */ - - char hw_path; /* The module number on this bus */ - unsigned int num_addrs; /* some devices have additional address ranges. */ - unsigned long *addr; /* which will be stored here */ - -#ifdef CONFIG_64BIT - /* parms for pdc_pat_cell_module() call */ - unsigned long pcell_loc; /* Physical Cell location */ - unsigned long mod_index; /* PAT specific - Misc Module info */ - - /* generic info returned from pdc_pat_cell_module() */ - unsigned long mod_info; /* PAT specific - Misc Module info */ - unsigned long pmod_loc; /* physical Module location */ -#endif - u64 dma_mask; /* DMA mask for I/O */ - struct device dev; -}; - -struct parisc_driver { - struct parisc_driver *next; - char *name; - const struct parisc_device_id *id_table; - int (*probe) (struct parisc_device *dev); /* New device discovered */ - int (*remove) (struct parisc_device *dev); - struct device_driver drv; -}; - - -#define to_parisc_device(d) container_of(d, struct parisc_device, dev) -#define to_parisc_driver(d) container_of(d, struct parisc_driver, drv) -#define parisc_parent(d) to_parisc_device(d->dev.parent) - -static inline char *parisc_pathname(struct parisc_device *d) -{ - return d->dev.bus_id; -} - -static inline void -parisc_set_drvdata(struct parisc_device *d, void *p) -{ - dev_set_drvdata(&d->dev, p); -} - -static inline void * -parisc_get_drvdata(struct parisc_device *d) -{ - return dev_get_drvdata(&d->dev); -} - -extern struct bus_type parisc_bus_type; - -#endif /*_ASM_PARISC_PARISC_DEVICE_H_*/ diff --git a/include/asm-parisc/parport.h b/include/asm-parisc/parport.h deleted file mode 100644 index 00d9cc3e7b97..000000000000 --- a/include/asm-parisc/parport.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * - * parport.h: ia32-compatible parport initialisation - * - * This file should only be included by drivers/parport/parport_pc.c. - */ -#ifndef _ASM_PARPORT_H -#define _ASM_PARPORT_H 1 - - -static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma) -{ - /* nothing ! */ - return 0; -} - - -#endif /* !(_ASM_PARPORT_H) */ diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h deleted file mode 100644 index 4ba868f44a5e..000000000000 --- a/include/asm-parisc/pci.h +++ /dev/null @@ -1,294 +0,0 @@ -#ifndef __ASM_PARISC_PCI_H -#define __ASM_PARISC_PCI_H - -#include - - - -/* -** HP PCI platforms generally support multiple bus adapters. -** (workstations 1-~4, servers 2-~32) -** -** Newer platforms number the busses across PCI bus adapters *sparsely*. -** E.g. 0, 8, 16, ... -** -** Under a PCI bus, most HP platforms support PPBs up to two or three -** levels deep. See "Bit3" product line. -*/ -#define PCI_MAX_BUSSES 256 - - -/* To be used as: mdelay(pci_post_reset_delay); - * - * post_reset is the time the kernel should stall to prevent anyone from - * accessing the PCI bus once #RESET is de-asserted. - * PCI spec somewhere says 1 second but with multi-PCI bus systems, - * this makes the boot time much longer than necessary. - * 20ms seems to work for all the HP PCI implementations to date. - */ -#define pci_post_reset_delay 50 - - -/* -** pci_hba_data (aka H2P_OBJECT in HP/UX) -** -** This is the "common" or "base" data structure which HBA drivers -** (eg Dino or LBA) are required to place at the top of their own -** platform_data structure. I've heard this called "C inheritance" too. -** -** Data needed by pcibios layer belongs here. -*/ -struct pci_hba_data { - void __iomem *base_addr; /* aka Host Physical Address */ - const struct parisc_device *dev; /* device from PA bus walk */ - struct pci_bus *hba_bus; /* primary PCI bus below HBA */ - int hba_num; /* I/O port space access "key" */ - struct resource bus_num; /* PCI bus numbers */ - struct resource io_space; /* PIOP */ - struct resource lmmio_space; /* bus addresses < 4Gb */ - struct resource elmmio_space; /* additional bus addresses < 4Gb */ - struct resource gmmio_space; /* bus addresses > 4Gb */ - - /* NOTE: Dino code assumes it can use *all* of the lmmio_space, - * elmmio_space and gmmio_space as a contiguous array of - * resources. This #define represents the array size */ - #define DINO_MAX_LMMIO_RESOURCES 3 - - unsigned long lmmio_space_offset; /* CPU view - PCI view */ - void * iommu; /* IOMMU this device is under */ - /* REVISIT - spinlock to protect resources? */ - - #define HBA_NAME_SIZE 16 - char io_name[HBA_NAME_SIZE]; - char lmmio_name[HBA_NAME_SIZE]; - char elmmio_name[HBA_NAME_SIZE]; - char gmmio_name[HBA_NAME_SIZE]; -}; - -#define HBA_DATA(d) ((struct pci_hba_data *) (d)) - -/* -** We support 2^16 I/O ports per HBA. These are set up in the form -** 0xbbxxxx, where bb is the bus number and xxxx is the I/O port -** space address. -*/ -#define HBA_PORT_SPACE_BITS 16 - -#define HBA_PORT_BASE(h) ((h) << HBA_PORT_SPACE_BITS) -#define HBA_PORT_SPACE_SIZE (1UL << HBA_PORT_SPACE_BITS) - -#define PCI_PORT_HBA(a) ((a) >> HBA_PORT_SPACE_BITS) -#define PCI_PORT_ADDR(a) ((a) & (HBA_PORT_SPACE_SIZE - 1)) - -#ifdef CONFIG_64BIT -#define PCI_F_EXTEND 0xffffffff00000000UL -#define PCI_IS_LMMIO(hba,a) pci_is_lmmio(hba,a) - -/* We need to know if an address is LMMMIO or GMMIO. - * LMMIO requires mangling and GMMIO we must use as-is. - */ -static __inline__ int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a) -{ - return(((a) & PCI_F_EXTEND) == PCI_F_EXTEND); -} - -/* -** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses. -** See pci.c for more conversions used by Generic PCI code. -** -** Platform characteristics/firmware guarantee that -** (1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO -** (2) PA_VIEW == IO_VIEW for GMMIO -*/ -#define PCI_BUS_ADDR(hba,a) (PCI_IS_LMMIO(hba,a) \ - ? ((a) - hba->lmmio_space_offset) /* mangle LMMIO */ \ - : (a)) /* GMMIO */ -#define PCI_HOST_ADDR(hba,a) (((a) & PCI_F_EXTEND) == 0 \ - ? (a) + hba->lmmio_space_offset \ - : (a)) - -#else /* !CONFIG_64BIT */ - -#define PCI_BUS_ADDR(hba,a) (a) -#define PCI_HOST_ADDR(hba,a) (a) -#define PCI_F_EXTEND 0UL -#define PCI_IS_LMMIO(hba,a) (1) /* 32-bit doesn't support GMMIO */ - -#endif /* !CONFIG_64BIT */ - -/* -** KLUGE: linux/pci.h include asm/pci.h BEFORE declaring struct pci_bus -** (This eliminates some of the warnings). -*/ -struct pci_bus; -struct pci_dev; - -/* - * If the PCI device's view of memory is the same as the CPU's view of memory, - * PCI_DMA_BUS_IS_PHYS is true. The networking and block device layers use - * this boolean for bounce buffer decisions. - */ -#ifdef CONFIG_PA20 -/* All PA-2.0 machines have an IOMMU. */ -#define PCI_DMA_BUS_IS_PHYS 0 -#define parisc_has_iommu() do { } while (0) -#else - -#if defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA) -extern int parisc_bus_is_phys; /* in arch/parisc/kernel/setup.c */ -#define PCI_DMA_BUS_IS_PHYS parisc_bus_is_phys -#define parisc_has_iommu() do { parisc_bus_is_phys = 0; } while (0) -#else -#define PCI_DMA_BUS_IS_PHYS 1 -#define parisc_has_iommu() do { } while (0) -#endif - -#endif /* !CONFIG_PA20 */ - - -/* -** Most PCI devices (eg Tulip, NCR720) also export the same registers -** to both MMIO and I/O port space. Due to poor performance of I/O Port -** access under HP PCI bus adapters, strongly recommend the use of MMIO -** address space. -** -** While I'm at it more PA programming notes: -** -** 1) MMIO stores (writes) are posted operations. This means the processor -** gets an "ACK" before the write actually gets to the device. A read -** to the same device (or typically the bus adapter above it) will -** force in-flight write transaction(s) out to the targeted device -** before the read can complete. -** -** 2) The Programmed I/O (PIO) data may not always be strongly ordered with -** respect to DMA on all platforms. Ie PIO data can reach the processor -** before in-flight DMA reaches memory. Since most SMP PA platforms -** are I/O coherent, it generally doesn't matter...but sometimes -** it does. -** -** I've helped device driver writers debug both types of problems. -*/ -struct pci_port_ops { - u8 (*inb) (struct pci_hba_data *hba, u16 port); - u16 (*inw) (struct pci_hba_data *hba, u16 port); - u32 (*inl) (struct pci_hba_data *hba, u16 port); - void (*outb) (struct pci_hba_data *hba, u16 port, u8 data); - void (*outw) (struct pci_hba_data *hba, u16 port, u16 data); - void (*outl) (struct pci_hba_data *hba, u16 port, u32 data); -}; - - -struct pci_bios_ops { - void (*init)(void); - void (*fixup_bus)(struct pci_bus *bus); -}; - -/* pci_unmap_{single,page} is not a nop, thus... */ -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ - dma_addr_t ADDR_NAME; -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ - __u32 LEN_NAME; -#define pci_unmap_addr(PTR, ADDR_NAME) \ - ((PTR)->ADDR_NAME) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ - (((PTR)->ADDR_NAME) = (VAL)) -#define pci_unmap_len(PTR, LEN_NAME) \ - ((PTR)->LEN_NAME) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ - (((PTR)->LEN_NAME) = (VAL)) - -/* -** Stuff declared in arch/parisc/kernel/pci.c -*/ -extern struct pci_port_ops *pci_port; -extern struct pci_bios_ops *pci_bios; - -#ifdef CONFIG_PCI -extern void pcibios_register_hba(struct pci_hba_data *); -extern void pcibios_set_master(struct pci_dev *); -#else -static inline void pcibios_register_hba(struct pci_hba_data *x) -{ -} -#endif - -/* - * pcibios_assign_all_busses() is used in drivers/pci/pci.c:pci_do_scan_bus() - * 0 == check if bridge is numbered before re-numbering. - * 1 == pci_do_scan_bus() should automatically number all PCI-PCI bridges. - * - * We *should* set this to zero for "legacy" platforms and one - * for PAT platforms. - * - * But legacy platforms also need to renumber the busses below a Host - * Bus controller. Adding a 4-port Tulip card on the first PCI root - * bus of a C200 resulted in the secondary bus being numbered as 1. - * The second PCI host bus controller's root bus had already been - * assigned bus number 1 by firmware and sysfs complained. - * - * Firmware isn't doing anything wrong here since each controller - * is its own PCI domain. It's simpler and easier for us to renumber - * the busses rather than treat each Dino as a separate PCI domain. - * Eventually, we may want to introduce PCI domains for Superdome or - * rp7420/8420 boxes and then revisit this issue. - */ -#define pcibios_assign_all_busses() (1) -#define pcibios_scan_all_fns(a, b) (0) - -#define PCIBIOS_MIN_IO 0x10 -#define PCIBIOS_MIN_MEM 0x1000 /* NBPG - but pci/setup-res.c dies */ - -/* export the pci_ DMA API in terms of the dma_ one */ -#include - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - unsigned long cacheline_size; - u8 byte; - - pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); - if (byte == 0) - cacheline_size = 1024; - else - cacheline_size = (int) byte * 4; - - *strat = PCI_DMA_BURST_MULTIPLE; - *strategy_parameter = cacheline_size; -} -#endif - -extern void -pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res); - -extern void -pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region); - -static inline struct resource * -pcibios_select_root(struct pci_dev *pdev, struct resource *res) -{ - struct resource *root = NULL; - - if (res->flags & IORESOURCE_IO) - root = &ioport_resource; - if (res->flags & IORESOURCE_MEM) - root = &iomem_resource; - - return root; -} - -static inline void pcibios_penalize_isa_irq(int irq, int active) -{ - /* We don't need to penalize isa irq's */ -} - -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return channel ? 15 : 14; -} - -#endif /* __ASM_PARISC_PCI_H */ diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h deleted file mode 100644 index 46b75f9cce51..000000000000 --- a/include/asm-parisc/pdc.h +++ /dev/null @@ -1,760 +0,0 @@ -#ifndef _PARISC_PDC_H -#define _PARISC_PDC_H - -/* - * PDC return values ... - * All PDC calls return a subset of these errors. - */ - -#define PDC_WARN 3 /* Call completed with a warning */ -#define PDC_REQ_ERR_1 2 /* See above */ -#define PDC_REQ_ERR_0 1 /* Call would generate a requestor error */ -#define PDC_OK 0 /* Call completed successfully */ -#define PDC_BAD_PROC -1 /* Called non-existent procedure*/ -#define PDC_BAD_OPTION -2 /* Called with non-existent option */ -#define PDC_ERROR -3 /* Call could not complete without an error */ -#define PDC_NE_MOD -5 /* Module not found */ -#define PDC_NE_CELL_MOD -7 /* Cell module not found */ -#define PDC_INVALID_ARG -10 /* Called with an invalid argument */ -#define PDC_BUS_POW_WARN -12 /* Call could not complete in allowed power budget */ -#define PDC_NOT_NARROW -17 /* Narrow mode not supported */ - -/* - * PDC entry points... - */ - -#define PDC_POW_FAIL 1 /* perform a power-fail */ -#define PDC_POW_FAIL_PREPARE 0 /* prepare for powerfail */ - -#define PDC_CHASSIS 2 /* PDC-chassis functions */ -#define PDC_CHASSIS_DISP 0 /* update chassis display */ -#define PDC_CHASSIS_WARN 1 /* return chassis warnings */ -#define PDC_CHASSIS_DISPWARN 2 /* update&return chassis status */ -#define PDC_RETURN_CHASSIS_INFO 128 /* HVERSION dependent: return chassis LED/LCD info */ - -#define PDC_PIM 3 /* Get PIM data */ -#define PDC_PIM_HPMC 0 /* Transfer HPMC data */ -#define PDC_PIM_RETURN_SIZE 1 /* Get Max buffer needed for PIM*/ -#define PDC_PIM_LPMC 2 /* Transfer HPMC data */ -#define PDC_PIM_SOFT_BOOT 3 /* Transfer Soft Boot data */ -#define PDC_PIM_TOC 4 /* Transfer TOC data */ - -#define PDC_MODEL 4 /* PDC model information call */ -#define PDC_MODEL_INFO 0 /* returns information */ -#define PDC_MODEL_BOOTID 1 /* set the BOOT_ID */ -#define PDC_MODEL_VERSIONS 2 /* returns cpu-internal versions*/ -#define PDC_MODEL_SYSMODEL 3 /* return system model info */ -#define PDC_MODEL_ENSPEC 4 /* enable specific option */ -#define PDC_MODEL_DISPEC 5 /* disable specific option */ -#define PDC_MODEL_CPU_ID 6 /* returns cpu-id (only newer machines!) */ -#define PDC_MODEL_CAPABILITIES 7 /* returns OS32/OS64-flags */ -/* Values for PDC_MODEL_CAPABILITIES non-equivalent virtual aliasing support */ -#define PDC_MODEL_IOPDIR_FDC (1 << 2) -#define PDC_MODEL_NVA_MASK (3 << 4) -#define PDC_MODEL_NVA_SUPPORTED (0 << 4) -#define PDC_MODEL_NVA_SLOW (1 << 4) -#define PDC_MODEL_NVA_UNSUPPORTED (3 << 4) -#define PDC_MODEL_GET_BOOT__OP 8 /* returns boot test options */ -#define PDC_MODEL_SET_BOOT__OP 9 /* set boot test options */ - -#define PA89_INSTRUCTION_SET 0x4 /* capatibilies returned */ -#define PA90_INSTRUCTION_SET 0x8 - -#define PDC_CACHE 5 /* return/set cache (& TLB) info*/ -#define PDC_CACHE_INFO 0 /* returns information */ -#define PDC_CACHE_SET_COH 1 /* set coherence state */ -#define PDC_CACHE_RET_SPID 2 /* returns space-ID bits */ - -#define PDC_HPA 6 /* return HPA of processor */ -#define PDC_HPA_PROCESSOR 0 -#define PDC_HPA_MODULES 1 - -#define PDC_COPROC 7 /* Co-Processor (usually FP unit(s)) */ -#define PDC_COPROC_CFG 0 /* Co-Processor Cfg (FP unit(s) enabled?) */ - -#define PDC_IODC 8 /* talk to IODC */ -#define PDC_IODC_READ 0 /* read IODC entry point */ -/* PDC_IODC_RI_ * INDEX parameter of PDC_IODC_READ */ -#define PDC_IODC_RI_DATA_BYTES 0 /* IODC Data Bytes */ -/* 1, 2 obsolete - HVERSION dependent*/ -#define PDC_IODC_RI_INIT 3 /* Initialize module */ -#define PDC_IODC_RI_IO 4 /* Module input/output */ -#define PDC_IODC_RI_SPA 5 /* Module input/output */ -#define PDC_IODC_RI_CONFIG 6 /* Module input/output */ -/* 7 obsolete - HVERSION dependent */ -#define PDC_IODC_RI_TEST 8 /* Module input/output */ -#define PDC_IODC_RI_TLB 9 /* Module input/output */ -#define PDC_IODC_NINIT 2 /* non-destructive init */ -#define PDC_IODC_DINIT 3 /* destructive init */ -#define PDC_IODC_MEMERR 4 /* check for memory errors */ -#define PDC_IODC_INDEX_DATA 0 /* get first 16 bytes from mod IODC */ -#define PDC_IODC_BUS_ERROR -4 /* bus error return value */ -#define PDC_IODC_INVALID_INDEX -5 /* invalid index return value */ -#define PDC_IODC_COUNT -6 /* count is too small */ - -#define PDC_TOD 9 /* time-of-day clock (TOD) */ -#define PDC_TOD_READ 0 /* read TOD */ -#define PDC_TOD_WRITE 1 /* write TOD */ - - -#define PDC_STABLE 10 /* stable storage (sprockets) */ -#define PDC_STABLE_READ 0 -#define PDC_STABLE_WRITE 1 -#define PDC_STABLE_RETURN_SIZE 2 -#define PDC_STABLE_VERIFY_CONTENTS 3 -#define PDC_STABLE_INITIALIZE 4 - -#define PDC_NVOLATILE 11 /* often not implemented */ - -#define PDC_ADD_VALID 12 /* Memory validation PDC call */ -#define PDC_ADD_VALID_VERIFY 0 /* Make PDC_ADD_VALID verify region */ - -#define PDC_INSTR 15 /* get instr to invoke PDCE_CHECK() */ - -#define PDC_PROC 16 /* (sprockets) */ - -#define PDC_CONFIG 16 /* (sprockets) */ -#define PDC_CONFIG_DECONFIG 0 -#define PDC_CONFIG_DRECONFIG 1 -#define PDC_CONFIG_DRETURN_CONFIG 2 - -#define PDC_BLOCK_TLB 18 /* manage hardware block-TLB */ -#define PDC_BTLB_INFO 0 /* returns parameter */ -#define PDC_BTLB_INSERT 1 /* insert BTLB entry */ -#define PDC_BTLB_PURGE 2 /* purge BTLB entries */ -#define PDC_BTLB_PURGE_ALL 3 /* purge all BTLB entries */ - -#define PDC_TLB 19 /* manage hardware TLB miss handling */ -#define PDC_TLB_INFO 0 /* returns parameter */ -#define PDC_TLB_SETUP 1 /* set up miss handling */ - -#define PDC_MEM 20 /* Manage memory */ -#define PDC_MEM_MEMINFO 0 -#define PDC_MEM_ADD_PAGE 1 -#define PDC_MEM_CLEAR_PDT 2 -#define PDC_MEM_READ_PDT 3 -#define PDC_MEM_RESET_CLEAR 4 -#define PDC_MEM_GOODMEM 5 -#define PDC_MEM_TABLE 128 /* Non contig mem map (sprockets) */ -#define PDC_MEM_RETURN_ADDRESS_TABLE PDC_MEM_TABLE -#define PDC_MEM_GET_MEMORY_SYSTEM_TABLES_SIZE 131 -#define PDC_MEM_GET_MEMORY_SYSTEM_TABLES 132 -#define PDC_MEM_GET_PHYSICAL_LOCATION_FROM_MEMORY_ADDRESS 133 - -#define PDC_MEM_RET_SBE_REPLACED 5 /* PDC_MEM return values */ -#define PDC_MEM_RET_DUPLICATE_ENTRY 4 -#define PDC_MEM_RET_BUF_SIZE_SMALL 1 -#define PDC_MEM_RET_PDT_FULL -11 -#define PDC_MEM_RET_INVALID_PHYSICAL_LOCATION ~0ULL - -#define PDC_PSW 21 /* Get/Set default System Mask */ -#define PDC_PSW_MASK 0 /* Return mask */ -#define PDC_PSW_GET_DEFAULTS 1 /* Return defaults */ -#define PDC_PSW_SET_DEFAULTS 2 /* Set default */ -#define PDC_PSW_ENDIAN_BIT 1 /* set for big endian */ -#define PDC_PSW_WIDE_BIT 2 /* set for wide mode */ - -#define PDC_SYSTEM_MAP 22 /* find system modules */ -#define PDC_FIND_MODULE 0 -#define PDC_FIND_ADDRESS 1 -#define PDC_TRANSLATE_PATH 2 - -#define PDC_SOFT_POWER 23 /* soft power switch */ -#define PDC_SOFT_POWER_INFO 0 /* return info about the soft power switch */ -#define PDC_SOFT_POWER_ENABLE 1 /* enable/disable soft power switch */ - - -/* HVERSION dependent */ - -/* The PDC_MEM_MAP calls */ -#define PDC_MEM_MAP 128 /* on s700: return page info */ -#define PDC_MEM_MAP_HPA 0 /* returns hpa of a module */ - -#define PDC_EEPROM 129 /* EEPROM access */ -#define PDC_EEPROM_READ_WORD 0 -#define PDC_EEPROM_WRITE_WORD 1 -#define PDC_EEPROM_READ_BYTE 2 -#define PDC_EEPROM_WRITE_BYTE 3 -#define PDC_EEPROM_EEPROM_PASSWORD -1000 - -#define PDC_NVM 130 /* NVM (non-volatile memory) access */ -#define PDC_NVM_READ_WORD 0 -#define PDC_NVM_WRITE_WORD 1 -#define PDC_NVM_READ_BYTE 2 -#define PDC_NVM_WRITE_BYTE 3 - -#define PDC_SEED_ERROR 132 /* (sprockets) */ - -#define PDC_IO 135 /* log error info, reset IO system */ -#define PDC_IO_READ_AND_CLEAR_ERRORS 0 -#define PDC_IO_RESET 1 -#define PDC_IO_RESET_DEVICES 2 -/* sets bits 6&7 (little endian) of the HcControl Register */ -#define PDC_IO_USB_SUSPEND 0xC000000000000000 -#define PDC_IO_EEPROM_IO_ERR_TABLE_FULL -5 /* return value */ -#define PDC_IO_NO_SUSPEND -6 /* return value */ - -#define PDC_BROADCAST_RESET 136 /* reset all processors */ -#define PDC_DO_RESET 0 /* option: perform a broadcast reset */ -#define PDC_DO_FIRM_TEST_RESET 1 /* Do broadcast reset with bitmap */ -#define PDC_BR_RECONFIGURATION 2 /* reset w/reconfiguration */ -#define PDC_FIRM_TEST_MAGIC 0xab9ec36fUL /* for this reboot only */ - -#define PDC_LAN_STATION_ID 138 /* Hversion dependent mechanism for */ -#define PDC_LAN_STATION_ID_READ 0 /* getting the lan station address */ - -#define PDC_LAN_STATION_ID_SIZE 6 - -#define PDC_CHECK_RANGES 139 /* (sprockets) */ - -#define PDC_NV_SECTIONS 141 /* (sprockets) */ - -#define PDC_PERFORMANCE 142 /* performance monitoring */ - -#define PDC_SYSTEM_INFO 143 /* system information */ -#define PDC_SYSINFO_RETURN_INFO_SIZE 0 -#define PDC_SYSINFO_RRETURN_SYS_INFO 1 -#define PDC_SYSINFO_RRETURN_ERRORS 2 -#define PDC_SYSINFO_RRETURN_WARNINGS 3 -#define PDC_SYSINFO_RETURN_REVISIONS 4 -#define PDC_SYSINFO_RRETURN_DIAGNOSE 5 -#define PDC_SYSINFO_RRETURN_HV_DIAGNOSE 1005 - -#define PDC_RDR 144 /* (sprockets) */ -#define PDC_RDR_READ_BUFFER 0 -#define PDC_RDR_READ_SINGLE 1 -#define PDC_RDR_WRITE_SINGLE 2 - -#define PDC_INTRIGUE 145 /* (sprockets) */ -#define PDC_INTRIGUE_WRITE_BUFFER 0 -#define PDC_INTRIGUE_GET_SCRATCH_BUFSIZE 1 -#define PDC_INTRIGUE_START_CPU_COUNTERS 2 -#define PDC_INTRIGUE_STOP_CPU_COUNTERS 3 - -#define PDC_STI 146 /* STI access */ -/* same as PDC_PCI_XXX values (see below) */ - -/* Legacy PDC definitions for same stuff */ -#define PDC_PCI_INDEX 147 -#define PDC_PCI_INTERFACE_INFO 0 -#define PDC_PCI_SLOT_INFO 1 -#define PDC_PCI_INFLIGHT_BYTES 2 -#define PDC_PCI_READ_CONFIG 3 -#define PDC_PCI_WRITE_CONFIG 4 -#define PDC_PCI_READ_PCI_IO 5 -#define PDC_PCI_WRITE_PCI_IO 6 -#define PDC_PCI_READ_CONFIG_DELAY 7 -#define PDC_PCI_UPDATE_CONFIG_DELAY 8 -#define PDC_PCI_PCI_PATH_TO_PCI_HPA 9 -#define PDC_PCI_PCI_HPA_TO_PCI_PATH 10 -#define PDC_PCI_PCI_PATH_TO_PCI_BUS 11 -#define PDC_PCI_PCI_RESERVED 12 -#define PDC_PCI_PCI_INT_ROUTE_SIZE 13 -#define PDC_PCI_GET_INT_TBL_SIZE PDC_PCI_PCI_INT_ROUTE_SIZE -#define PDC_PCI_PCI_INT_ROUTE 14 -#define PDC_PCI_GET_INT_TBL PDC_PCI_PCI_INT_ROUTE -#define PDC_PCI_READ_MON_TYPE 15 -#define PDC_PCI_WRITE_MON_TYPE 16 - - -/* Get SCSI Interface Card info: SDTR, SCSI ID, mode (SE vs LVD) */ -#define PDC_INITIATOR 163 -#define PDC_GET_INITIATOR 0 -#define PDC_SET_INITIATOR 1 -#define PDC_DELETE_INITIATOR 2 -#define PDC_RETURN_TABLE_SIZE 3 -#define PDC_RETURN_TABLE 4 - -#define PDC_LINK 165 /* (sprockets) */ -#define PDC_LINK_PCI_ENTRY_POINTS 0 /* list (Arg1) = 0 */ -#define PDC_LINK_USB_ENTRY_POINTS 1 /* list (Arg1) = 1 */ - -/* cl_class - * page 3-33 of IO-Firmware ARS - * IODC ENTRY_INIT(Search first) RET[1] - */ -#define CL_NULL 0 /* invalid */ -#define CL_RANDOM 1 /* random access (as disk) */ -#define CL_SEQU 2 /* sequential access (as tape) */ -#define CL_DUPLEX 7 /* full-duplex point-to-point (RS-232, Net) */ -#define CL_KEYBD 8 /* half-duplex console (HIL Keyboard) */ -#define CL_DISPL 9 /* half-duplex console (display) */ -#define CL_FC 10 /* FiberChannel access media */ - -/* IODC ENTRY_INIT() */ -#define ENTRY_INIT_SRCH_FRST 2 -#define ENTRY_INIT_SRCH_NEXT 3 -#define ENTRY_INIT_MOD_DEV 4 -#define ENTRY_INIT_DEV 5 -#define ENTRY_INIT_MOD 6 -#define ENTRY_INIT_MSG 9 - -/* IODC ENTRY_IO() */ -#define ENTRY_IO_BOOTIN 0 -#define ENTRY_IO_BOOTOUT 1 -#define ENTRY_IO_CIN 2 -#define ENTRY_IO_COUT 3 -#define ENTRY_IO_CLOSE 4 -#define ENTRY_IO_GETMSG 9 -#define ENTRY_IO_BBLOCK_IN 16 -#define ENTRY_IO_BBLOCK_OUT 17 - -/* IODC ENTRY_SPA() */ - -/* IODC ENTRY_CONFIG() */ - -/* IODC ENTRY_TEST() */ - -/* IODC ENTRY_TLB() */ - -/* constants for OS (NVM...) */ -#define OS_ID_NONE 0 /* Undefined OS ID */ -#define OS_ID_HPUX 1 /* HP-UX OS */ -#define OS_ID_MPEXL 2 /* MPE XL OS */ -#define OS_ID_OSF 3 /* OSF OS */ -#define OS_ID_HPRT 4 /* HP-RT OS */ -#define OS_ID_NOVEL 5 /* NOVELL OS */ -#define OS_ID_LINUX 6 /* Linux */ - - -/* constants for PDC_CHASSIS */ -#define OSTAT_OFF 0 -#define OSTAT_FLT 1 -#define OSTAT_TEST 2 -#define OSTAT_INIT 3 -#define OSTAT_SHUT 4 -#define OSTAT_WARN 5 -#define OSTAT_RUN 6 -#define OSTAT_ON 7 - -/* Page Zero constant offsets used by the HPMC handler */ -#define BOOT_CONSOLE_HPA_OFFSET 0x3c0 -#define BOOT_CONSOLE_SPA_OFFSET 0x3c4 -#define BOOT_CONSOLE_PATH_OFFSET 0x3a8 - -/* size of the pdc_result buffer for firmware.c */ -#define NUM_PDC_RESULT 32 - -#if !defined(__ASSEMBLY__) -#ifdef __KERNEL__ - -#include - -extern int pdc_type; - -/* Values for pdc_type */ -#define PDC_TYPE_ILLEGAL -1 -#define PDC_TYPE_PAT 0 /* 64-bit PAT-PDC */ -#define PDC_TYPE_SYSTEM_MAP 1 /* 32-bit, but supports PDC_SYSTEM_MAP */ -#define PDC_TYPE_SNAKE 2 /* Doesn't support SYSTEM_MAP */ - -struct pdc_chassis_info { /* for PDC_CHASSIS_INFO */ - unsigned long actcnt; /* actual number of bytes returned */ - unsigned long maxcnt; /* maximum number of bytes that could be returned */ -}; - -struct pdc_coproc_cfg { /* for PDC_COPROC_CFG */ - unsigned long ccr_functional; - unsigned long ccr_present; - unsigned long revision; - unsigned long model; -}; - -struct pdc_model { /* for PDC_MODEL */ - unsigned long hversion; - unsigned long sversion; - unsigned long hw_id; - unsigned long boot_id; - unsigned long sw_id; - unsigned long sw_cap; - unsigned long arch_rev; - unsigned long pot_key; - unsigned long curr_key; -}; - -struct pdc_cache_cf { /* for PDC_CACHE (I/D-caches) */ - unsigned long -#ifdef CONFIG_64BIT - cc_padW:32, -#endif - cc_alias: 4, /* alias boundaries for virtual addresses */ - cc_block: 4, /* to determine most efficient stride */ - cc_line : 3, /* maximum amount written back as a result of store (multiple of 16 bytes) */ - cc_shift: 2, /* how much to shift cc_block left */ - cc_wt : 1, /* 0 = WT-Dcache, 1 = WB-Dcache */ - cc_sh : 2, /* 0 = separate I/D-cache, else shared I/D-cache */ - cc_cst : 3, /* 0 = incoherent D-cache, 1=coherent D-cache */ - cc_pad1 : 10, /* reserved */ - cc_hv : 3; /* hversion dependent */ -}; - -struct pdc_tlb_cf { /* for PDC_CACHE (I/D-TLB's) */ - unsigned long tc_pad0:12, /* reserved */ -#ifdef CONFIG_64BIT - tc_padW:32, -#endif - tc_sh : 2, /* 0 = separate I/D-TLB, else shared I/D-TLB */ - tc_hv : 1, /* HV */ - tc_page : 1, /* 0 = 2K page-size-machine, 1 = 4k page size */ - tc_cst : 3, /* 0 = incoherent operations, else coherent operations */ - tc_aid : 5, /* ITLB: width of access ids of processor (encoded!) */ - tc_pad1 : 8; /* ITLB: width of space-registers (encoded) */ -}; - -struct pdc_cache_info { /* main-PDC_CACHE-structure (caches & TLB's) */ - /* I-cache */ - unsigned long ic_size; /* size in bytes */ - struct pdc_cache_cf ic_conf; /* configuration */ - unsigned long ic_base; /* base-addr */ - unsigned long ic_stride; - unsigned long ic_count; - unsigned long ic_loop; - /* D-cache */ - unsigned long dc_size; /* size in bytes */ - struct pdc_cache_cf dc_conf; /* configuration */ - unsigned long dc_base; /* base-addr */ - unsigned long dc_stride; - unsigned long dc_count; - unsigned long dc_loop; - /* Instruction-TLB */ - unsigned long it_size; /* number of entries in I-TLB */ - struct pdc_tlb_cf it_conf; /* I-TLB-configuration */ - unsigned long it_sp_base; - unsigned long it_sp_stride; - unsigned long it_sp_count; - unsigned long it_off_base; - unsigned long it_off_stride; - unsigned long it_off_count; - unsigned long it_loop; - /* data-TLB */ - unsigned long dt_size; /* number of entries in D-TLB */ - struct pdc_tlb_cf dt_conf; /* D-TLB-configuration */ - unsigned long dt_sp_base; - unsigned long dt_sp_stride; - unsigned long dt_sp_count; - unsigned long dt_off_base; - unsigned long dt_off_stride; - unsigned long dt_off_count; - unsigned long dt_loop; -}; - -#if 0 -/* If you start using the next struct, you'll have to adjust it to - * work with 64-bit firmware I think -PB - */ -struct pdc_iodc { /* PDC_IODC */ - unsigned char hversion_model; - unsigned char hversion; - unsigned char spa; - unsigned char type; - unsigned int sversion_rev:4; - unsigned int sversion_model:19; - unsigned int sversion_opt:8; - unsigned char rev; - unsigned char dep; - unsigned char features; - unsigned char pad1; - unsigned int checksum:16; - unsigned int length:16; - unsigned int pad[15]; -} __attribute__((aligned(8))) ; -#endif - -#ifndef CONFIG_PA20 -/* no BLTBs in pa2.0 processors */ -struct pdc_btlb_info_range { - __u8 res00; - __u8 num_i; - __u8 num_d; - __u8 num_comb; -}; - -struct pdc_btlb_info { /* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */ - unsigned int min_size; /* minimum size of BTLB in pages */ - unsigned int max_size; /* maximum size of BTLB in pages */ - struct pdc_btlb_info_range fixed_range_info; - struct pdc_btlb_info_range variable_range_info; -}; - -#endif /* !CONFIG_PA20 */ - -#ifdef CONFIG_64BIT -struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */ - unsigned long entries_returned; - unsigned long entries_total; -}; - -struct pdc_memory_table { /* PDC_MEM/PDC_MEM_TABLE (arguments) */ - unsigned long paddr; - unsigned int pages; - unsigned int reserved; -}; -#endif /* CONFIG_64BIT */ - -struct pdc_system_map_mod_info { /* PDC_SYSTEM_MAP/FIND_MODULE */ - unsigned long mod_addr; - unsigned long mod_pgs; - unsigned long add_addrs; -}; - -struct pdc_system_map_addr_info { /* PDC_SYSTEM_MAP/FIND_ADDRESS */ - unsigned long mod_addr; - unsigned long mod_pgs; -}; - -struct pdc_initiator { /* PDC_INITIATOR */ - int host_id; - int factor; - int width; - int mode; -}; - -struct hardware_path { - char flags; /* see bit definitions below */ - char bc[6]; /* Bus Converter routing info to a specific */ - /* I/O adaptor (< 0 means none, > 63 resvd) */ - char mod; /* fixed field of specified module */ -}; - -/* - * Device path specifications used by PDC. - */ -struct pdc_module_path { - struct hardware_path path; - unsigned int layers[6]; /* device-specific info (ctlr #, unit # ...) */ -}; - -#ifndef CONFIG_PA20 -/* Only used on some pre-PA2.0 boxes */ -struct pdc_memory_map { /* PDC_MEMORY_MAP */ - unsigned long hpa; /* mod's register set address */ - unsigned long more_pgs; /* number of additional I/O pgs */ -}; -#endif - -struct pdc_tod { - unsigned long tod_sec; - unsigned long tod_usec; -}; - -/* architected results from PDC_PIM/transfer hpmc on a PA1.1 machine */ - -struct pdc_hpmc_pim_11 { /* PDC_PIM */ - __u32 gr[32]; - __u32 cr[32]; - __u32 sr[8]; - __u32 iasq_back; - __u32 iaoq_back; - __u32 check_type; - __u32 cpu_state; - __u32 rsvd1; - __u32 cache_check; - __u32 tlb_check; - __u32 bus_check; - __u32 assists_check; - __u32 rsvd2; - __u32 assist_state; - __u32 responder_addr; - __u32 requestor_addr; - __u32 path_info; - __u64 fr[32]; -}; - -/* - * architected results from PDC_PIM/transfer hpmc on a PA2.0 machine - * - * Note that PDC_PIM doesn't care whether or not wide mode was enabled - * so the results are different on PA1.1 vs. PA2.0 when in narrow mode. - * - * Note also that there are unarchitected results available, which - * are hversion dependent. Do a "ser pim 0 hpmc" after rebooting, since - * the firmware is probably the best way of printing hversion dependent - * data. - */ - -struct pdc_hpmc_pim_20 { /* PDC_PIM */ - __u64 gr[32]; - __u64 cr[32]; - __u64 sr[8]; - __u64 iasq_back; - __u64 iaoq_back; - __u32 check_type; - __u32 cpu_state; - __u32 cache_check; - __u32 tlb_check; - __u32 bus_check; - __u32 assists_check; - __u32 assist_state; - __u32 path_info; - __u64 responder_addr; - __u64 requestor_addr; - __u64 fr[32]; -}; - -void pdc_console_init(void); /* in pdc_console.c */ -void pdc_console_restart(void); - -void setup_pdc(void); /* in inventory.c */ - -/* wrapper-functions from pdc.c */ - -int pdc_add_valid(unsigned long address); -int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len); -int pdc_chassis_disp(unsigned long disp); -int pdc_chassis_warn(unsigned long *warn); -int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info); -int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index, - void *iodc_data, unsigned int iodc_data_size); -int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info, - struct pdc_module_path *mod_path, long mod_index); -int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, - long mod_index, long addr_index); -int pdc_model_info(struct pdc_model *model); -int pdc_model_sysmodel(char *name); -int pdc_model_cpuid(unsigned long *cpu_id); -int pdc_model_versions(unsigned long *versions, int id); -int pdc_model_capabilities(unsigned long *capabilities); -int pdc_cache_info(struct pdc_cache_info *cache); -int pdc_spaceid_bits(unsigned long *space_bits); -#ifndef CONFIG_PA20 -int pdc_btlb_info(struct pdc_btlb_info *btlb); -int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path); -#endif /* !CONFIG_PA20 */ -int pdc_lan_station_id(char *lan_addr, unsigned long net_hpa); - -int pdc_stable_read(unsigned long staddr, void *memaddr, unsigned long count); -int pdc_stable_write(unsigned long staddr, void *memaddr, unsigned long count); -int pdc_stable_get_size(unsigned long *size); -int pdc_stable_verify_contents(void); -int pdc_stable_initialize(void); - -int pdc_pci_irt_size(unsigned long *num_entries, unsigned long hpa); -int pdc_pci_irt(unsigned long num_entries, unsigned long hpa, void *tbl); - -int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *); -int pdc_tod_read(struct pdc_tod *tod); -int pdc_tod_set(unsigned long sec, unsigned long usec); - -#ifdef CONFIG_64BIT -int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, - struct pdc_memory_table *tbl, unsigned long entries); -#endif - -void set_firmware_width(void); -int pdc_do_firm_test_reset(unsigned long ftc_bitmap); -int pdc_do_reset(void); -int pdc_soft_power_info(unsigned long *power_reg); -int pdc_soft_power_button(int sw_control); -void pdc_io_reset(void); -void pdc_io_reset_devices(void); -int pdc_iodc_getc(void); -int pdc_iodc_print(const unsigned char *str, unsigned count); - -void pdc_emergency_unlock(void); -int pdc_sti_call(unsigned long func, unsigned long flags, - unsigned long inptr, unsigned long outputr, - unsigned long glob_cfg); - -static inline char * os_id_to_string(u16 os_id) { - switch(os_id) { - case OS_ID_NONE: return "No OS"; - case OS_ID_HPUX: return "HP-UX"; - case OS_ID_MPEXL: return "MPE-iX"; - case OS_ID_OSF: return "OSF"; - case OS_ID_HPRT: return "HP-RT"; - case OS_ID_NOVEL: return "Novell Netware"; - case OS_ID_LINUX: return "Linux"; - default: return "Unknown"; - } -} - -#endif /* __KERNEL__ */ - -#define PAGE0 ((struct zeropage *)__PAGE_OFFSET) - -/* DEFINITION OF THE ZERO-PAGE (PAG0) */ -/* based on work by Jason Eckhardt (jason@equator.com) */ - -/* flags of the device_path */ -#define PF_AUTOBOOT 0x80 -#define PF_AUTOSEARCH 0x40 -#define PF_TIMER 0x0F - -struct device_path { /* page 1-69 */ - unsigned char flags; /* flags see above! */ - unsigned char bc[6]; /* bus converter routing info */ - unsigned char mod; - unsigned int layers[6];/* device-specific layer-info */ -} __attribute__((aligned(8))) ; - -struct pz_device { - struct device_path dp; /* see above */ - /* struct iomod *hpa; */ - unsigned int hpa; /* HPA base address */ - /* char *spa; */ - unsigned int spa; /* SPA base address */ - /* int (*iodc_io)(struct iomod*, ...); */ - unsigned int iodc_io; /* device entry point */ - short pad; /* reserved */ - unsigned short cl_class;/* see below */ -} __attribute__((aligned(8))) ; - -struct zeropage { - /* [0x000] initialize vectors (VEC) */ - unsigned int vec_special; /* must be zero */ - /* int (*vec_pow_fail)(void);*/ - unsigned int vec_pow_fail; /* power failure handler */ - /* int (*vec_toc)(void); */ - unsigned int vec_toc; - unsigned int vec_toclen; - /* int (*vec_rendz)(void); */ - unsigned int vec_rendz; - int vec_pow_fail_flen; - int vec_pad[10]; - - /* [0x040] reserved processor dependent */ - int pad0[112]; - - /* [0x200] reserved */ - int pad1[84]; - - /* [0x350] memory configuration (MC) */ - int memc_cont; /* contiguous mem size (bytes) */ - int memc_phsize; /* physical memory size */ - int memc_adsize; /* additional mem size, bytes of SPA space used by PDC */ - unsigned int mem_pdc_hi; /* used for 64-bit */ - - /* [0x360] various parameters for the boot-CPU */ - /* unsigned int *mem_booterr[8]; */ - unsigned int mem_booterr[8]; /* ptr to boot errors */ - unsigned int mem_free; /* first location, where OS can be loaded */ - /* struct iomod *mem_hpa; */ - unsigned int mem_hpa; /* HPA of the boot-CPU */ - /* int (*mem_pdc)(int, ...); */ - unsigned int mem_pdc; /* PDC entry point */ - unsigned int mem_10msec; /* number of clock ticks in 10msec */ - - /* [0x390] initial memory module (IMM) */ - /* struct iomod *imm_hpa; */ - unsigned int imm_hpa; /* HPA of the IMM */ - int imm_soft_boot; /* 0 = was hard boot, 1 = was soft boot */ - unsigned int imm_spa_size; /* SPA size of the IMM in bytes */ - unsigned int imm_max_mem; /* bytes of mem in IMM */ - - /* [0x3A0] boot console, display device and keyboard */ - struct pz_device mem_cons; /* description of console device */ - struct pz_device mem_boot; /* description of boot device */ - struct pz_device mem_kbd; /* description of keyboard device */ - - /* [0x430] reserved */ - int pad430[116]; - - /* [0x600] processor dependent */ - __u32 pad600[1]; - __u32 proc_sti; /* pointer to STI ROM */ - __u32 pad608[126]; -}; - -#endif /* !defined(__ASSEMBLY__) */ - -#endif /* _PARISC_PDC_H */ diff --git a/include/asm-parisc/pdc_chassis.h b/include/asm-parisc/pdc_chassis.h deleted file mode 100644 index a609273dc6bf..000000000000 --- a/include/asm-parisc/pdc_chassis.h +++ /dev/null @@ -1,381 +0,0 @@ -/* - * include/asm-parisc/pdc_chassis.h - * - * Copyright (C) 2002 Laurent Canet - * Copyright (C) 2002 Thibaut Varene - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * TODO: - handle processor number on SMP systems (Reporting Entity ID) - * - handle message ID - * - handle timestamps - */ - - -#ifndef _PARISC_PDC_CHASSIS_H -#define _PARISC_PDC_CHASSIS_H - -/* - * ---------- - * Prototypes - * ---------- - */ - -int pdc_chassis_send_status(int message); -void parisc_pdc_chassis_init(void); - - -/* - * ----------------- - * Direct call names - * ----------------- - * They setup everything for you, the Log message and the corresponding LED state - */ - -#define PDC_CHASSIS_DIRECT_BSTART 0 -#define PDC_CHASSIS_DIRECT_BCOMPLETE 1 -#define PDC_CHASSIS_DIRECT_SHUTDOWN 2 -#define PDC_CHASSIS_DIRECT_PANIC 3 -#define PDC_CHASSIS_DIRECT_HPMC 4 -#define PDC_CHASSIS_DIRECT_LPMC 5 -#define PDC_CHASSIS_DIRECT_DUMP 6 /* not yet implemented */ -#define PDC_CHASSIS_DIRECT_OOPS 7 /* not yet implemented */ - - -/* - * ------------ - * LEDs control - * ------------ - * Set the three LEDs -- Run, Attn, and Fault. - */ - -/* Old PDC LED control */ -#define PDC_CHASSIS_DISP_DATA(v) ((unsigned long)(v) << 17) - -/* - * Available PDC PAT LED states - */ - -#define PDC_CHASSIS_LED_RUN_OFF (0ULL << 4) -#define PDC_CHASSIS_LED_RUN_FLASH (1ULL << 4) -#define PDC_CHASSIS_LED_RUN_ON (2ULL << 4) -#define PDC_CHASSIS_LED_RUN_NC (3ULL << 4) -#define PDC_CHASSIS_LED_ATTN_OFF (0ULL << 6) -#define PDC_CHASSIS_LED_ATTN_FLASH (1ULL << 6) -#define PDC_CHASSIS_LED_ATTN_NC (3ULL << 6) /* ATTN ON is invalid */ -#define PDC_CHASSIS_LED_FAULT_OFF (0ULL << 8) -#define PDC_CHASSIS_LED_FAULT_FLASH (1ULL << 8) -#define PDC_CHASSIS_LED_FAULT_ON (2ULL << 8) -#define PDC_CHASSIS_LED_FAULT_NC (3ULL << 8) -#define PDC_CHASSIS_LED_VALID (1ULL << 10) - -/* - * Valid PDC PAT LED states combinations - */ - -/* System running normally */ -#define PDC_CHASSIS_LSTATE_RUN_NORMAL (PDC_CHASSIS_LED_RUN_ON | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* System crashed and rebooted itself successfully */ -#define PDC_CHASSIS_LSTATE_RUN_CRASHREC (PDC_CHASSIS_LED_RUN_ON | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_FLASH | \ - PDC_CHASSIS_LED_VALID ) -/* There was a system interruption that did not take the system down */ -#define PDC_CHASSIS_LSTATE_RUN_SYSINT (PDC_CHASSIS_LED_RUN_ON | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* System running and unexpected reboot or non-critical error detected */ -#define PDC_CHASSIS_LSTATE_RUN_NCRIT (PDC_CHASSIS_LED_RUN_ON | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_FLASH | \ - PDC_CHASSIS_LED_VALID ) -/* Executing non-OS code */ -#define PDC_CHASSIS_LSTATE_NONOS (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* Boot failed - Executing non-OS code */ -#define PDC_CHASSIS_LSTATE_NONOS_BFAIL (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_ON | \ - PDC_CHASSIS_LED_VALID ) -/* Unexpected reboot occurred - Executing non-OS code */ -#define PDC_CHASSIS_LSTATE_NONOS_UNEXP (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_FLASH | \ - PDC_CHASSIS_LED_VALID ) -/* Executing non-OS code - Non-critical error detected */ -#define PDC_CHASSIS_LSTATE_NONOS_NCRIT (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* Boot failed - Executing non-OS code - Non-critical error detected */ -#define PDC_CHASSIS_LSTATE_BFAIL_NCRIT (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_ON | \ - PDC_CHASSIS_LED_VALID ) -/* Unexpected reboot/recovering - Executing non-OS code - Non-critical error detected */ -#define PDC_CHASSIS_LSTATE_UNEXP_NCRIT (PDC_CHASSIS_LED_RUN_FLASH | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_FLASH | \ - PDC_CHASSIS_LED_VALID ) -/* Cannot execute PDC */ -#define PDC_CHASSIS_LSTATE_CANNOT_PDC (PDC_CHASSIS_LED_RUN_OFF | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* Boot failed - OS not up - PDC has detected a failure that prevents boot */ -#define PDC_CHASSIS_LSTATE_FATAL_BFAIL (PDC_CHASSIS_LED_RUN_OFF | \ - PDC_CHASSIS_LED_ATTN_OFF | \ - PDC_CHASSIS_LED_FAULT_ON | \ - PDC_CHASSIS_LED_VALID ) -/* No code running - Non-critical error detected (double fault situation) */ -#define PDC_CHASSIS_LSTATE_NOCODE_NCRIT (PDC_CHASSIS_LED_RUN_OFF | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_OFF | \ - PDC_CHASSIS_LED_VALID ) -/* Boot failed - OS not up - Fatal failure detected - Non-critical error detected */ -#define PDC_CHASSIS_LSTATE_FATAL_NCRIT (PDC_CHASSIS_LED_RUN_OFF | \ - PDC_CHASSIS_LED_ATTN_FLASH | \ - PDC_CHASSIS_LED_FAULT_ON | \ - PDC_CHASSIS_LED_VALID ) -/* All other states are invalid */ - - -/* - * -------------- - * PDC Log events - * -------------- - * Here follows bits needed to fill up the log event sent to PDC_CHASSIS - * The log message contains: Alert level, Source, Source detail, - * Source ID, Problem detail, Caller activity, Activity status, - * Caller subactivity, Reporting entity type, Reporting entity ID, - * Data type, Unique message ID and EOM. - */ - -/* Alert level */ -#define PDC_CHASSIS_ALERT_FORWARD (0ULL << 36) /* no failure detected */ -#define PDC_CHASSIS_ALERT_SERPROC (1ULL << 36) /* service proc - no failure */ -#define PDC_CHASSIS_ALERT_NURGENT (2ULL << 36) /* non-urgent operator attn */ -#define PDC_CHASSIS_ALERT_BLOCKED (3ULL << 36) /* system blocked */ -#define PDC_CHASSIS_ALERT_CONF_CHG (4ULL << 36) /* unexpected configuration change */ -#define PDC_CHASSIS_ALERT_ENV_PB (5ULL << 36) /* boot possible, environmental pb */ -#define PDC_CHASSIS_ALERT_PENDING (6ULL << 36) /* boot possible, pending failure */ -#define PDC_CHASSIS_ALERT_PERF_IMP (8ULL << 36) /* boot possible, performance impaired */ -#define PDC_CHASSIS_ALERT_FUNC_IMP (10ULL << 36) /* boot possible, functionality impaired */ -#define PDC_CHASSIS_ALERT_SOFT_FAIL (12ULL << 36) /* software failure */ -#define PDC_CHASSIS_ALERT_HANG (13ULL << 36) /* system hang */ -#define PDC_CHASSIS_ALERT_ENV_FATAL (14ULL << 36) /* fatal power or environmental pb */ -#define PDC_CHASSIS_ALERT_HW_FATAL (15ULL << 36) /* fatal hardware problem */ - -/* Source */ -#define PDC_CHASSIS_SRC_NONE (0ULL << 28) /* unknown, no source stated */ -#define PDC_CHASSIS_SRC_PROC (1ULL << 28) /* processor */ -/* For later use ? */ -#define PDC_CHASSIS_SRC_PROC_CACHE (2ULL << 28) /* processor cache*/ -#define PDC_CHASSIS_SRC_PDH (3ULL << 28) /* processor dependent hardware */ -#define PDC_CHASSIS_SRC_PWR (4ULL << 28) /* power */ -#define PDC_CHASSIS_SRC_FAB (5ULL << 28) /* fabric connector */ -#define PDC_CHASSIS_SRC_PLATi (6ULL << 28) /* platform */ -#define PDC_CHASSIS_SRC_MEM (7ULL << 28) /* memory */ -#define PDC_CHASSIS_SRC_IO (8ULL << 28) /* I/O */ -#define PDC_CHASSIS_SRC_CELL (9ULL << 28) /* cell */ -#define PDC_CHASSIS_SRC_PD (10ULL << 28) /* protected domain */ - -/* Source detail field */ -#define PDC_CHASSIS_SRC_D_PROC (1ULL << 24) /* processor general */ - -/* Source ID - platform dependent */ -#define PDC_CHASSIS_SRC_ID_UNSPEC (0ULL << 16) - -/* Problem detail - problem source dependent */ -#define PDC_CHASSIS_PB_D_PROC_NONE (0ULL << 32) /* no problem detail */ -#define PDC_CHASSIS_PB_D_PROC_TIMEOUT (4ULL << 32) /* timeout */ - -/* Caller activity */ -#define PDC_CHASSIS_CALL_ACT_HPUX_BL (7ULL << 12) /* Boot Loader */ -#define PDC_CHASSIS_CALL_ACT_HPUX_PD (8ULL << 12) /* SAL_PD activities */ -#define PDC_CHASSIS_CALL_ACT_HPUX_EVENT (9ULL << 12) /* SAL_EVENTS activities */ -#define PDC_CHASSIS_CALL_ACT_HPUX_IO (10ULL << 12) /* SAL_IO activities */ -#define PDC_CHASSIS_CALL_ACT_HPUX_PANIC (11ULL << 12) /* System panic */ -#define PDC_CHASSIS_CALL_ACT_HPUX_INIT (12ULL << 12) /* System initialization */ -#define PDC_CHASSIS_CALL_ACT_HPUX_SHUT (13ULL << 12) /* System shutdown */ -#define PDC_CHASSIS_CALL_ACT_HPUX_WARN (14ULL << 12) /* System warning */ -#define PDC_CHASSIS_CALL_ACT_HPUX_DU (15ULL << 12) /* Display_Activity() update */ - -/* Activity status - implementation dependent */ -#define PDC_CHASSIS_ACT_STATUS_UNSPEC (0ULL << 0) - -/* Caller subactivity - implementation dependent */ -/* FIXME: other subactivities ? */ -#define PDC_CHASSIS_CALL_SACT_UNSPEC (0ULL << 4) /* implementation dependent */ - -/* Reporting entity type */ -#define PDC_CHASSIS_RET_GENERICOS (12ULL << 52) /* generic OSes */ -#define PDC_CHASSIS_RET_IA64_NT (13ULL << 52) /* IA-64 NT */ -#define PDC_CHASSIS_RET_HPUX (14ULL << 52) /* HP-UX */ -#define PDC_CHASSIS_RET_DIAG (15ULL << 52) /* offline diagnostics & utilities */ - -/* Reporting entity ID */ -#define PDC_CHASSIS_REID_UNSPEC (0ULL << 44) - -/* Data type */ -#define PDC_CHASSIS_DT_NONE (0ULL << 59) /* data field unused */ -/* For later use ? Do we need these ? */ -#define PDC_CHASSIS_DT_PHYS_ADDR (1ULL << 59) /* physical address */ -#define PDC_CHASSIS_DT_DATA_EXPECT (2ULL << 59) /* expected data */ -#define PDC_CHASSIS_DT_ACTUAL (3ULL << 59) /* actual data */ -#define PDC_CHASSIS_DT_PHYS_LOC (4ULL << 59) /* physical location */ -#define PDC_CHASSIS_DT_PHYS_LOC_EXT (5ULL << 59) /* physical location extension */ -#define PDC_CHASSIS_DT_TAG (6ULL << 59) /* tag */ -#define PDC_CHASSIS_DT_SYNDROME (7ULL << 59) /* syndrome */ -#define PDC_CHASSIS_DT_CODE_ADDR (8ULL << 59) /* code address */ -#define PDC_CHASSIS_DT_ASCII_MSG (9ULL << 59) /* ascii message */ -#define PDC_CHASSIS_DT_POST (10ULL << 59) /* POST code */ -#define PDC_CHASSIS_DT_TIMESTAMP (11ULL << 59) /* timestamp */ -#define PDC_CHASSIS_DT_DEV_STAT (12ULL << 59) /* device status */ -#define PDC_CHASSIS_DT_DEV_TYPE (13ULL << 59) /* device type */ -#define PDC_CHASSIS_DT_PB_DET (14ULL << 59) /* problem detail */ -#define PDC_CHASSIS_DT_ACT_LEV (15ULL << 59) /* activity level/timeout */ -#define PDC_CHASSIS_DT_SER_NUM (16ULL << 59) /* serial number */ -#define PDC_CHASSIS_DT_REV_NUM (17ULL << 59) /* revision number */ -#define PDC_CHASSIS_DT_INTERRUPT (18ULL << 59) /* interruption information */ -#define PDC_CHASSIS_DT_TEST_NUM (19ULL << 59) /* test number */ -#define PDC_CHASSIS_DT_STATE_CHG (20ULL << 59) /* major changes in system state */ -#define PDC_CHASSIS_DT_PROC_DEALLOC (21ULL << 59) /* processor deallocate */ -#define PDC_CHASSIS_DT_RESET (30ULL << 59) /* reset type and cause */ -#define PDC_CHASSIS_DT_PA_LEGACY (31ULL << 59) /* legacy PA hex chassis code */ - -/* System states - part of major changes in system state data field */ -#define PDC_CHASSIS_SYSTATE_BSTART (0ULL << 0) /* boot start */ -#define PDC_CHASSIS_SYSTATE_BCOMP (1ULL << 0) /* boot complete */ -#define PDC_CHASSIS_SYSTATE_CHANGE (2ULL << 0) /* major change */ -#define PDC_CHASSIS_SYSTATE_LED (3ULL << 0) /* LED change */ -#define PDC_CHASSIS_SYSTATE_PANIC (9ULL << 0) /* OS Panic */ -#define PDC_CHASSIS_SYSTATE_DUMP (10ULL << 0) /* memory dump */ -#define PDC_CHASSIS_SYSTATE_HPMC (11ULL << 0) /* processing HPMC */ -#define PDC_CHASSIS_SYSTATE_HALT (15ULL << 0) /* system halted */ - -/* Message ID */ -#define PDC_CHASSIS_MSG_ID (0ULL << 40) /* we do not handle msg IDs atm */ - -/* EOM - separates log entries */ -#define PDC_CHASSIS_EOM_CLEAR (0ULL << 43) -#define PDC_CHASSIS_EOM_SET (1ULL << 43) - -/* - * Preformated well known messages - */ - -/* Boot started */ -#define PDC_CHASSIS_PMSG_BSTART (PDC_CHASSIS_ALERT_SERPROC | \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_INIT | \ - PDC_CHASSIS_ACT_STATUS_UNSPEC | \ - PDC_CHASSIS_CALL_SACT_UNSPEC | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_REID_UNSPEC | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_BSTART | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -/* Boot complete */ -#define PDC_CHASSIS_PMSG_BCOMPLETE (PDC_CHASSIS_ALERT_SERPROC | \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_INIT | \ - PDC_CHASSIS_ACT_STATUS_UNSPEC | \ - PDC_CHASSIS_CALL_SACT_UNSPEC | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_REID_UNSPEC | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_BCOMP | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -/* Shutdown */ -#define PDC_CHASSIS_PMSG_SHUTDOWN (PDC_CHASSIS_ALERT_SERPROC | \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_SHUT | \ - PDC_CHASSIS_ACT_STATUS_UNSPEC | \ - PDC_CHASSIS_CALL_SACT_UNSPEC | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_REID_UNSPEC | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_HALT | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -/* Panic */ -#define PDC_CHASSIS_PMSG_PANIC (PDC_CHASSIS_ALERT_SOFT_FAIL | \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_PANIC| \ - PDC_CHASSIS_ACT_STATUS_UNSPEC | \ - PDC_CHASSIS_CALL_SACT_UNSPEC | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_REID_UNSPEC | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_PANIC | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -// FIXME: extrapolated data -/* HPMC */ -#define PDC_CHASSIS_PMSG_HPMC (PDC_CHASSIS_ALERT_CONF_CHG /*?*/ | \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_WARN | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_HPMC | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -/* LPMC */ -#define PDC_CHASSIS_PMSG_LPMC (PDC_CHASSIS_ALERT_BLOCKED /*?*/| \ - PDC_CHASSIS_SRC_PROC | \ - PDC_CHASSIS_SRC_D_PROC | \ - PDC_CHASSIS_SRC_ID_UNSPEC | \ - PDC_CHASSIS_PB_D_PROC_NONE | \ - PDC_CHASSIS_CALL_ACT_HPUX_WARN | \ - PDC_CHASSIS_ACT_STATUS_UNSPEC | \ - PDC_CHASSIS_CALL_SACT_UNSPEC | \ - PDC_CHASSIS_RET_HPUX | \ - PDC_CHASSIS_REID_UNSPEC | \ - PDC_CHASSIS_DT_STATE_CHG | \ - PDC_CHASSIS_SYSTATE_CHANGE | \ - PDC_CHASSIS_MSG_ID | \ - PDC_CHASSIS_EOM_SET ) - -#endif /* _PARISC_PDC_CHASSIS_H */ -/* vim: set ts=8 */ diff --git a/include/asm-parisc/pdcpat.h b/include/asm-parisc/pdcpat.h deleted file mode 100644 index 47539f117958..000000000000 --- a/include/asm-parisc/pdcpat.h +++ /dev/null @@ -1,308 +0,0 @@ -#ifndef __PARISC_PATPDC_H -#define __PARISC_PATPDC_H - -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright 2000 (c) Hewlett Packard (Paul Bame ) - * Copyright 2000,2004 (c) Grant Grundler - */ - - -#define PDC_PAT_CELL 64L /* Interface for gaining and - * manipulatin g cell state within PD */ -#define PDC_PAT_CELL_GET_NUMBER 0L /* Return Cell number */ -#define PDC_PAT_CELL_GET_INFO 1L /* Returns info about Cell */ -#define PDC_PAT_CELL_MODULE 2L /* Returns info about Module */ -#define PDC_PAT_CELL_SET_ATTENTION 9L /* Set Cell Attention indicator */ -#define PDC_PAT_CELL_NUMBER_TO_LOC 10L /* Cell Number -> Location */ -#define PDC_PAT_CELL_WALK_FABRIC 11L /* Walk the Fabric */ -#define PDC_PAT_CELL_GET_RDT_SIZE 12L /* Return Route Distance Table Sizes */ -#define PDC_PAT_CELL_GET_RDT 13L /* Return Route Distance Tables */ -#define PDC_PAT_CELL_GET_LOCAL_PDH_SZ 14L /* Read Local PDH Buffer Size */ -#define PDC_PAT_CELL_SET_LOCAL_PDH 15L /* Write Local PDH Buffer */ -#define PDC_PAT_CELL_GET_REMOTE_PDH_SZ 16L /* Return Remote PDH Buffer Size */ -#define PDC_PAT_CELL_GET_REMOTE_PDH 17L /* Read Remote PDH Buffer */ -#define PDC_PAT_CELL_GET_DBG_INFO 128L /* Return DBG Buffer Info */ -#define PDC_PAT_CELL_CHANGE_ALIAS 129L /* Change Non-Equivalent Alias Chacking */ - - -/* -** Arg to PDC_PAT_CELL_MODULE memaddr[4] -** -** Addresses on the Merced Bus != all Runway Bus addresses. -** This is intended for programming SBA/LBA chips range registers. -*/ -#define IO_VIEW 0UL -#define PA_VIEW 1UL - -/* PDC_PAT_CELL_MODULE entity type values */ -#define PAT_ENTITY_CA 0 /* central agent */ -#define PAT_ENTITY_PROC 1 /* processor */ -#define PAT_ENTITY_MEM 2 /* memory controller */ -#define PAT_ENTITY_SBA 3 /* system bus adapter */ -#define PAT_ENTITY_LBA 4 /* local bus adapter */ -#define PAT_ENTITY_PBC 5 /* processor bus converter */ -#define PAT_ENTITY_XBC 6 /* crossbar fabric connect */ -#define PAT_ENTITY_RC 7 /* fabric interconnect */ - -/* PDC_PAT_CELL_MODULE address range type values */ -#define PAT_PBNUM 0 /* PCI Bus Number */ -#define PAT_LMMIO 1 /* < 4G MMIO Space */ -#define PAT_GMMIO 2 /* > 4G MMIO Space */ -#define PAT_NPIOP 3 /* Non Postable I/O Port Space */ -#define PAT_PIOP 4 /* Postable I/O Port Space */ -#define PAT_AHPA 5 /* Addional HPA Space */ -#define PAT_UFO 6 /* HPA Space (UFO for Mariposa) */ -#define PAT_GNIP 7 /* GNI Reserved Space */ - - - -/* PDC PAT CHASSIS LOG -- Platform logging & forward progress functions */ - -#define PDC_PAT_CHASSIS_LOG 65L -#define PDC_PAT_CHASSIS_WRITE_LOG 0L /* Write Log Entry */ -#define PDC_PAT_CHASSIS_READ_LOG 1L /* Read Log Entry */ - - -/* PDC PAT CPU -- CPU configuration within the protection domain */ - -#define PDC_PAT_CPU 67L -#define PDC_PAT_CPU_INFO 0L /* Return CPU config info */ -#define PDC_PAT_CPU_DELETE 1L /* Delete CPU */ -#define PDC_PAT_CPU_ADD 2L /* Add CPU */ -#define PDC_PAT_CPU_GET_NUMBER 3L /* Return CPU Number */ -#define PDC_PAT_CPU_GET_HPA 4L /* Return CPU HPA */ -#define PDC_PAT_CPU_STOP 5L /* Stop CPU */ -#define PDC_PAT_CPU_RENDEZVOUS 6L /* Rendezvous CPU */ -#define PDC_PAT_CPU_GET_CLOCK_INFO 7L /* Return CPU Clock info */ -#define PDC_PAT_CPU_GET_RENDEZVOUS_STATE 8L /* Return Rendezvous State */ -#define PDC_PAT_CPU_PLUNGE_FABRIC 128L /* Plunge Fabric */ -#define PDC_PAT_CPU_UPDATE_CACHE_CLEANSING 129L /* Manipulate Cache - * Cleansing Mode */ -/* PDC PAT EVENT -- Platform Events */ - -#define PDC_PAT_EVENT 68L -#define PDC_PAT_EVENT_GET_CAPS 0L /* Get Capabilities */ -#define PDC_PAT_EVENT_SET_MODE 1L /* Set Notification Mode */ -#define PDC_PAT_EVENT_SCAN 2L /* Scan Event */ -#define PDC_PAT_EVENT_HANDLE 3L /* Handle Event */ -#define PDC_PAT_EVENT_GET_NB_CALL 4L /* Get Non-Blocking call Args */ - -/* PDC PAT HPMC -- Cause processor to go into spin loop, and wait - * for wake up from Monarch Processor. - */ - -#define PDC_PAT_HPMC 70L -#define PDC_PAT_HPMC_RENDEZ_CPU 0L /* go into spin loop */ -#define PDC_PAT_HPMC_SET_PARAMS 1L /* Allows OS to specify intr which PDC - * will use to interrupt OS during - * machine check rendezvous */ - -/* parameters for PDC_PAT_HPMC_SET_PARAMS: */ -#define HPMC_SET_PARAMS_INTR 1L /* Rendezvous Interrupt */ -#define HPMC_SET_PARAMS_WAKE 2L /* Wake up processor */ - - -/* PDC PAT IO -- On-line services for I/O modules */ - -#define PDC_PAT_IO 71L -#define PDC_PAT_IO_GET_SLOT_STATUS 5L /* Get Slot Status Info*/ -#define PDC_PAT_IO_GET_LOC_FROM_HARDWARE 6L /* Get Physical Location from */ - /* Hardware Path */ -#define PDC_PAT_IO_GET_HARDWARE_FROM_LOC 7L /* Get Hardware Path from - * Physical Location */ -#define PDC_PAT_IO_GET_PCI_CONFIG_FROM_HW 11L /* Get PCI Configuration - * Address from Hardware Path */ -#define PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG 12L /* Get Hardware Path - * from PCI Configuration Address */ -#define PDC_PAT_IO_READ_HOST_BRIDGE_INFO 13L /* Read Host Bridge State Info */ -#define PDC_PAT_IO_CLEAR_HOST_BRIDGE_INFO 14L /* Clear Host Bridge State Info*/ -#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE 15L /* Get PCI INT Routing Table - * Size */ -#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE 16L /* Get PCI INT Routing Table */ -#define PDC_PAT_IO_GET_HINT_TABLE_SIZE 17L /* Get Hint Table Size */ -#define PDC_PAT_IO_GET_HINT_TABLE 18L /* Get Hint Table */ -#define PDC_PAT_IO_PCI_CONFIG_READ 19L /* PCI Config Read */ -#define PDC_PAT_IO_PCI_CONFIG_WRITE 20L /* PCI Config Write */ -#define PDC_PAT_IO_GET_NUM_IO_SLOTS 21L /* Get Number of I/O Bay Slots in - * Cabinet */ -#define PDC_PAT_IO_GET_LOC_IO_SLOTS 22L /* Get Physical Location of I/O */ - /* Bay Slots in Cabinet */ -#define PDC_PAT_IO_BAY_STATUS_INFO 28L /* Get I/O Bay Slot Status Info */ -#define PDC_PAT_IO_GET_PROC_VIEW 29L /* Get Processor view of IO address */ -#define PDC_PAT_IO_PROG_SBA_DIR_RANGE 30L /* Program directed range */ - - -/* PDC PAT MEM -- Manage memory page deallocation */ - -#define PDC_PAT_MEM 72L -#define PDC_PAT_MEM_PD_INFO 0L /* Return PDT info for PD */ -#define PDC_PAT_MEM_PD_CLEAR 1L /* Clear PDT for PD */ -#define PDC_PAT_MEM_PD_READ 2L /* Read PDT entries for PD */ -#define PDC_PAT_MEM_PD_RESET 3L /* Reset clear bit for PD */ -#define PDC_PAT_MEM_CELL_INFO 5L /* Return PDT info For Cell */ -#define PDC_PAT_MEM_CELL_CLEAR 6L /* Clear PDT For Cell */ -#define PDC_PAT_MEM_CELL_READ 7L /* Read PDT entries For Cell */ -#define PDC_PAT_MEM_CELL_RESET 8L /* Reset clear bit For Cell */ -#define PDC_PAT_MEM_SETGM 9L /* Set Golden Memory value */ -#define PDC_PAT_MEM_ADD_PAGE 10L /* ADDs a page to the cell */ -#define PDC_PAT_MEM_ADDRESS 11L /* Get Physical Location From */ - /* Memory Address */ -#define PDC_PAT_MEM_GET_TXT_SIZE 12L /* Get Formatted Text Size */ -#define PDC_PAT_MEM_GET_PD_TXT 13L /* Get PD Formatted Text */ -#define PDC_PAT_MEM_GET_CELL_TXT 14L /* Get Cell Formatted Text */ -#define PDC_PAT_MEM_RD_STATE_INFO 15L /* Read Mem Module State Info*/ -#define PDC_PAT_MEM_CLR_STATE_INFO 16L /*Clear Mem Module State Info*/ -#define PDC_PAT_MEM_CLEAN_RANGE 128L /*Clean Mem in specific range*/ -#define PDC_PAT_MEM_GET_TBL_SIZE 131L /* Get Memory Table Size */ -#define PDC_PAT_MEM_GET_TBL 132L /* Get Memory Table */ - - -/* PDC PAT NVOLATILE -- Access Non-Volatile Memory */ - -#define PDC_PAT_NVOLATILE 73L -#define PDC_PAT_NVOLATILE_READ 0L /* Read Non-Volatile Memory */ -#define PDC_PAT_NVOLATILE_WRITE 1L /* Write Non-Volatile Memory */ -#define PDC_PAT_NVOLATILE_GET_SIZE 2L /* Return size of NVM */ -#define PDC_PAT_NVOLATILE_VERIFY 3L /* Verify contents of NVM */ -#define PDC_PAT_NVOLATILE_INIT 4L /* Initialize NVM */ - -/* PDC PAT PD */ -#define PDC_PAT_PD 74L /* Protection Domain Info */ -#define PDC_PAT_PD_GET_ADDR_MAP 0L /* Get Address Map */ - -/* PDC_PAT_PD_GET_ADDR_MAP entry types */ -#define PAT_MEMORY_DESCRIPTOR 1 - -/* PDC_PAT_PD_GET_ADDR_MAP memory types */ -#define PAT_MEMTYPE_MEMORY 0 -#define PAT_MEMTYPE_FIRMWARE 4 - -/* PDC_PAT_PD_GET_ADDR_MAP memory usage */ -#define PAT_MEMUSE_GENERAL 0 -#define PAT_MEMUSE_GI 128 -#define PAT_MEMUSE_GNI 129 - - -#ifndef __ASSEMBLY__ -#include - -#ifdef CONFIG_64BIT -#define is_pdc_pat() (PDC_TYPE_PAT == pdc_type) -extern int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num); -extern int pdc_pat_get_irt(void *r_addr, unsigned long cell_num); -#else /* ! CONFIG_64BIT */ -/* No PAT support for 32-bit kernels...sorry */ -#define is_pdc_pat() (0) -#define pdc_pat_get_irt_size(num_entries, cell_numn) PDC_BAD_PROC -#define pdc_pat_get_irt(r_addr, cell_num) PDC_BAD_PROC -#endif /* ! CONFIG_64BIT */ - - -struct pdc_pat_cell_num { - unsigned long cell_num; - unsigned long cell_loc; -}; - -struct pdc_pat_cpu_num { - unsigned long cpu_num; - unsigned long cpu_loc; -}; - -struct pdc_pat_pd_addr_map_entry { - unsigned char entry_type; /* 1 = Memory Descriptor Entry Type */ - unsigned char reserve1[5]; - unsigned char memory_type; - unsigned char memory_usage; - unsigned long paddr; - unsigned int pages; /* Length in 4K pages */ - unsigned int reserve2; - unsigned long cell_map; -}; - -/******************************************************************** -* PDC_PAT_CELL[Return Cell Module] memaddr[0] conf_base_addr -* ---------------------------------------------------------- -* Bit 0 to 51 - conf_base_addr -* Bit 52 to 62 - reserved -* Bit 63 - endianess bit -********************************************************************/ -#define PAT_GET_CBA(value) ((value) & 0xfffffffffffff000UL) - -/******************************************************************** -* PDC_PAT_CELL[Return Cell Module] memaddr[1] mod_info -* ---------------------------------------------------- -* Bit 0 to 7 - entity type -* 0 = central agent, 1 = processor, -* 2 = memory controller, 3 = system bus adapter, -* 4 = local bus adapter, 5 = processor bus converter, -* 6 = crossbar fabric connect, 7 = fabric interconnect, -* 8 to 254 reserved, 255 = unknown. -* Bit 8 to 15 - DVI -* Bit 16 to 23 - IOC functions -* Bit 24 to 39 - reserved -* Bit 40 to 63 - mod_pages -* number of 4K pages a module occupies starting at conf_base_addr -********************************************************************/ -#define PAT_GET_ENTITY(value) (((value) >> 56) & 0xffUL) -#define PAT_GET_DVI(value) (((value) >> 48) & 0xffUL) -#define PAT_GET_IOC(value) (((value) >> 40) & 0xffUL) -#define PAT_GET_MOD_PAGES(value) ((value) & 0xffffffUL) - - -/* -** PDC_PAT_CELL_GET_INFO return block -*/ -typedef struct pdc_pat_cell_info_rtn_block { - unsigned long cpu_info; - unsigned long cell_info; - unsigned long cell_location; - unsigned long reo_location; - unsigned long mem_size; - unsigned long dimm_status; - unsigned long pdc_rev; - unsigned long fabric_info0; - unsigned long fabric_info1; - unsigned long fabric_info2; - unsigned long fabric_info3; - unsigned long reserved[21]; -} pdc_pat_cell_info_rtn_block_t; - - -/* FIXME: mod[508] should really be a union of the various mod components */ -struct pdc_pat_cell_mod_maddr_block { /* PDC_PAT_CELL_MODULE */ - unsigned long cba; /* func 0 cfg space address */ - unsigned long mod_info; /* module information */ - unsigned long mod_location; /* physical location of the module */ - struct hardware_path mod_path; /* module path (device path - layers) */ - unsigned long mod[508]; /* PAT cell module components */ -} __attribute__((aligned(8))) ; - -typedef struct pdc_pat_cell_mod_maddr_block pdc_pat_cell_mod_maddr_block_t; - - -extern int pdc_pat_chassis_send_log(unsigned long status, unsigned long data); -extern int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info); -extern int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod, unsigned long view_type, void *mem_addr); -extern int pdc_pat_cell_num_to_loc(void *, unsigned long); - -extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa); - -extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset); - - -extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *val); -extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); - - -/* Flag to indicate this is a PAT box...don't use this unless you -** really have to...it might go away some day. -*/ -extern int pdc_pat; /* arch/parisc/kernel/inventory.c */ - -#endif /* __ASSEMBLY__ */ - -#endif /* ! __PARISC_PATPDC_H */ diff --git a/include/asm-parisc/percpu.h b/include/asm-parisc/percpu.h deleted file mode 100644 index a0dcd1970128..000000000000 --- a/include/asm-parisc/percpu.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _PARISC_PERCPU_H -#define _PARISC_PERCPU_H - -#include - -#endif - diff --git a/include/asm-parisc/perf.h b/include/asm-parisc/perf.h deleted file mode 100644 index a18e11972c09..000000000000 --- a/include/asm-parisc/perf.h +++ /dev/null @@ -1,74 +0,0 @@ -#ifndef _ASM_PERF_H_ -#define _ASM_PERF_H_ - -/* ioctls */ -#define PA_PERF_ON _IO('p', 1) -#define PA_PERF_OFF _IOR('p', 2, unsigned int) -#define PA_PERF_VERSION _IOR('p', 3, int) - -#define PA_PERF_DEV "perf" -#define PA_PERF_MINOR 146 - -/* Interface types */ -#define UNKNOWN_INTF 255 -#define ONYX_INTF 0 -#define CUDA_INTF 1 - -/* Common Onyx and Cuda images */ -#define CPI 0 -#define BUSUTIL 1 -#define TLBMISS 2 -#define TLBHANDMISS 3 -#define PTKN 4 -#define PNTKN 5 -#define IMISS 6 -#define DMISS 7 -#define DMISS_ACCESS 8 -#define BIG_CPI 9 -#define BIG_LS 10 -#define BR_ABORT 11 -#define ISNT 12 -#define QUADRANT 13 -#define RW_PDFET 14 -#define RW_WDFET 15 -#define SHLIB_CPI 16 - -/* Cuda only Images */ -#define FLOPS 17 -#define CACHEMISS 18 -#define BRANCHES 19 -#define CRSTACK 20 -#define I_CACHE_SPEC 21 -#define MAX_CUDA_IMAGES 22 - -/* Onyx only Images */ -#define ADDR_INV_ABORT_ALU 17 -#define BRAD_STALL 18 -#define CNTL_IN_PIPEL 19 -#define DSNT_XFH 20 -#define FET_SIG1 21 -#define FET_SIG2 22 -#define G7_1 23 -#define G7_2 24 -#define G7_3 25 -#define G7_4 26 -#define MPB_LABORT 27 -#define PANIC 28 -#define RARE_INST 29 -#define RW_DFET 30 -#define RW_IFET 31 -#define RW_SDFET 32 -#define SPEC_IFET 33 -#define ST_COND0 34 -#define ST_COND1 35 -#define ST_COND2 36 -#define ST_COND3 37 -#define ST_COND4 38 -#define ST_UNPRED0 39 -#define ST_UNPRED1 40 -#define UNPRED 41 -#define GO_STORE 42 -#define SHLIB_CALL 43 -#define MAX_ONYX_IMAGES 44 - -#endif diff --git a/include/asm-parisc/pgalloc.h b/include/asm-parisc/pgalloc.h deleted file mode 100644 index fc987a1c12a8..000000000000 --- a/include/asm-parisc/pgalloc.h +++ /dev/null @@ -1,149 +0,0 @@ -#ifndef _ASM_PGALLOC_H -#define _ASM_PGALLOC_H - -#include -#include -#include -#include -#include - -#include - -/* Allocate the top level pgd (page directory) - * - * Here (for 64 bit kernels) we implement a Hybrid L2/L3 scheme: we - * allocate the first pmd adjacent to the pgd. This means that we can - * subtract a constant offset to get to it. The pmd and pgd sizes are - * arranged so that a single pmd covers 4GB (giving a full 64-bit - * process access to 8TB) so our lookups are effectively L2 for the - * first 4GB of the kernel (i.e. for all ILP32 processes and all the - * kernel for machines with under 4GB of memory) */ -static inline pgd_t *pgd_alloc(struct mm_struct *mm) -{ - pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, - PGD_ALLOC_ORDER); - pgd_t *actual_pgd = pgd; - - if (likely(pgd != NULL)) { - memset(pgd, 0, PAGE_SIZE<> PxD_VALUE_SHIFT)); - /* The first pmd entry also is marked with _PAGE_GATEWAY as - * a signal that this pmd may not be freed */ - __pgd_val_set(*pgd, PxD_FLAG_ATTACHED); -#endif - } - return actual_pgd; -} - -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ -#ifdef CONFIG_64BIT - pgd -= PTRS_PER_PGD; -#endif - free_pages((unsigned long)pgd, PGD_ALLOC_ORDER); -} - -#if PT_NLEVELS == 3 - -/* Three Level Page Table Support for pmd's */ - -static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) -{ - __pgd_val_set(*pgd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) + - (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT)); -} - -static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) -{ - pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT, - PMD_ORDER); - if (pmd) - memset(pmd, 0, PAGE_SIZE<> PxD_VALUE_SHIFT)); - else -#endif - __pmd_val_set(*pmd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) - + (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT)); -} - -#define pmd_populate(mm, pmd, pte_page) \ - pmd_populate_kernel(mm, pmd, page_address(pte_page)) -#define pmd_pgtable(pmd) pmd_page(pmd) - -static inline pgtable_t -pte_alloc_one(struct mm_struct *mm, unsigned long address) -{ - struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - if (page) - pgtable_page_ctor(page); - return page; -} - -static inline pte_t * -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free(struct mm_struct *mm, struct page *pte) -{ - pgtable_page_dtor(pte); - pte_free_kernel(mm, page_address(pte)); -} - -#define check_pgt_cache() do { } while (0) - -#endif diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h deleted file mode 100644 index 470a4b88124d..000000000000 --- a/include/asm-parisc/pgtable.h +++ /dev/null @@ -1,508 +0,0 @@ -#ifndef _PARISC_PGTABLE_H -#define _PARISC_PGTABLE_H - -#include - -#include - -#ifndef __ASSEMBLY__ -/* - * we simulate an x86-style page table for the linux mm code - */ - -#include /* for vm_area_struct */ -#include -#include -#include - -/* - * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel - * memory. For the return value to be meaningful, ADDR must be >= - * PAGE_OFFSET. This operation can be relatively expensive (e.g., - * require a hash-, or multi-level tree-lookup or something of that - * sort) but it guarantees to return TRUE only if accessing the page - * at that address does not cause an error. Note that there may be - * addresses for which kern_addr_valid() returns FALSE even though an - * access would not cause an error (e.g., this is typically true for - * memory mapped I/O regions. - * - * XXX Need to implement this for parisc. - */ -#define kern_addr_valid(addr) (1) - -/* Certain architectures need to do special things when PTEs - * within a page table are directly modified. Thus, the following - * hook is made available. - */ -#define set_pte(pteptr, pteval) \ - do{ \ - *(pteptr) = (pteval); \ - } while(0) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) - -#endif /* !__ASSEMBLY__ */ - -#define pte_ERROR(e) \ - printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) -#define pmd_ERROR(e) \ - printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, (unsigned long)pmd_val(e)) -#define pgd_ERROR(e) \ - printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e)) - -/* This is the size of the initially mapped kernel memory */ -#ifdef CONFIG_64BIT -#define KERNEL_INITIAL_ORDER 24 /* 0 to 1<<24 = 16MB */ -#else -#define KERNEL_INITIAL_ORDER 23 /* 0 to 1<<23 = 8MB */ -#endif -#define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER) - -#if defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB) -#define PT_NLEVELS 3 -#define PGD_ORDER 1 /* Number of pages per pgd */ -#define PMD_ORDER 1 /* Number of pages per pmd */ -#define PGD_ALLOC_ORDER 2 /* first pgd contains pmd */ -#else -#define PT_NLEVELS 2 -#define PGD_ORDER 1 /* Number of pages per pgd */ -#define PGD_ALLOC_ORDER PGD_ORDER -#endif - -/* Definitions for 3rd level (we use PLD here for Page Lower directory - * because PTE_SHIFT is used lower down to mean shift that has to be - * done to get usable bits out of the PTE) */ -#define PLD_SHIFT PAGE_SHIFT -#define PLD_SIZE PAGE_SIZE -#define BITS_PER_PTE (PAGE_SHIFT - BITS_PER_PTE_ENTRY) -#define PTRS_PER_PTE (1UL << BITS_PER_PTE) - -/* Definitions for 2nd level */ -#define pgtable_cache_init() do { } while (0) - -#define PMD_SHIFT (PLD_SHIFT + BITS_PER_PTE) -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) -#if PT_NLEVELS == 3 -#define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY) -#else -#define BITS_PER_PMD 0 -#endif -#define PTRS_PER_PMD (1UL << BITS_PER_PMD) - -/* Definitions for 1st level */ -#define PGDIR_SHIFT (PMD_SHIFT + BITS_PER_PMD) -#define BITS_PER_PGD (PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY) -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE-1)) -#define PTRS_PER_PGD (1UL << BITS_PER_PGD) -#define USER_PTRS_PER_PGD PTRS_PER_PGD - -#define MAX_ADDRBITS (PGDIR_SHIFT + BITS_PER_PGD) -#define MAX_ADDRESS (1UL << MAX_ADDRBITS) - -#define SPACEID_SHIFT (MAX_ADDRBITS - 32) - -/* This calculates the number of initial pages we need for the initial - * page tables */ -#if (KERNEL_INITIAL_ORDER) >= (PMD_SHIFT) -# define PT_INITIAL (1 << (KERNEL_INITIAL_ORDER - PMD_SHIFT)) -#else -# define PT_INITIAL (1) /* all initial PTEs fit into one page */ -#endif - -/* - * pgd entries used up by user/kernel: - */ - -#define FIRST_USER_ADDRESS 0 - -/* NB: The tlb miss handlers make certain assumptions about the order */ -/* of the following bits, so be careful (One example, bits 25-31 */ -/* are moved together in one instruction). */ - -#define _PAGE_READ_BIT 31 /* (0x001) read access allowed */ -#define _PAGE_WRITE_BIT 30 /* (0x002) write access allowed */ -#define _PAGE_EXEC_BIT 29 /* (0x004) execute access allowed */ -#define _PAGE_GATEWAY_BIT 28 /* (0x008) privilege promotion allowed */ -#define _PAGE_DMB_BIT 27 /* (0x010) Data Memory Break enable (B bit) */ -#define _PAGE_DIRTY_BIT 26 /* (0x020) Page Dirty (D bit) */ -#define _PAGE_FILE_BIT _PAGE_DIRTY_BIT /* overload this bit */ -#define _PAGE_REFTRAP_BIT 25 /* (0x040) Page Ref. Trap enable (T bit) */ -#define _PAGE_NO_CACHE_BIT 24 /* (0x080) Uncached Page (U bit) */ -#define _PAGE_ACCESSED_BIT 23 /* (0x100) Software: Page Accessed */ -#define _PAGE_PRESENT_BIT 22 /* (0x200) Software: translation valid */ -#define _PAGE_FLUSH_BIT 21 /* (0x400) Software: translation valid */ - /* for cache flushing only */ -#define _PAGE_USER_BIT 20 /* (0x800) Software: User accessible page */ - -/* N.B. The bits are defined in terms of a 32 bit word above, so the */ -/* following macro is ok for both 32 and 64 bit. */ - -#define xlate_pabit(x) (31 - x) - -/* this defines the shift to the usable bits in the PTE it is set so - * that the valid bits _PAGE_PRESENT_BIT and _PAGE_USER_BIT are set - * to zero */ -#define PTE_SHIFT xlate_pabit(_PAGE_USER_BIT) - -/* PFN_PTE_SHIFT defines the shift of a PTE value to access the PFN field */ -#define PFN_PTE_SHIFT 12 - - -/* this is how many bits may be used by the file functions */ -#define PTE_FILE_MAX_BITS (BITS_PER_LONG - PTE_SHIFT) - -#define pte_to_pgoff(pte) (pte_val(pte) >> PTE_SHIFT) -#define pgoff_to_pte(off) ((pte_t) { ((off) << PTE_SHIFT) | _PAGE_FILE }) - -#define _PAGE_READ (1 << xlate_pabit(_PAGE_READ_BIT)) -#define _PAGE_WRITE (1 << xlate_pabit(_PAGE_WRITE_BIT)) -#define _PAGE_RW (_PAGE_READ | _PAGE_WRITE) -#define _PAGE_EXEC (1 << xlate_pabit(_PAGE_EXEC_BIT)) -#define _PAGE_GATEWAY (1 << xlate_pabit(_PAGE_GATEWAY_BIT)) -#define _PAGE_DMB (1 << xlate_pabit(_PAGE_DMB_BIT)) -#define _PAGE_DIRTY (1 << xlate_pabit(_PAGE_DIRTY_BIT)) -#define _PAGE_REFTRAP (1 << xlate_pabit(_PAGE_REFTRAP_BIT)) -#define _PAGE_NO_CACHE (1 << xlate_pabit(_PAGE_NO_CACHE_BIT)) -#define _PAGE_ACCESSED (1 << xlate_pabit(_PAGE_ACCESSED_BIT)) -#define _PAGE_PRESENT (1 << xlate_pabit(_PAGE_PRESENT_BIT)) -#define _PAGE_FLUSH (1 << xlate_pabit(_PAGE_FLUSH_BIT)) -#define _PAGE_USER (1 << xlate_pabit(_PAGE_USER_BIT)) -#define _PAGE_FILE (1 << xlate_pabit(_PAGE_FILE_BIT)) - -#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED) -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) -#define _PAGE_KERNEL (_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED) - -/* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds - * are page-aligned, we don't care about the PAGE_OFFSET bits, except - * for a few meta-information bits, so we shift the address to be - * able to effectively address 40/42/44-bits of physical address space - * depending on 4k/16k/64k PAGE_SIZE */ -#define _PxD_PRESENT_BIT 31 -#define _PxD_ATTACHED_BIT 30 -#define _PxD_VALID_BIT 29 - -#define PxD_FLAG_PRESENT (1 << xlate_pabit(_PxD_PRESENT_BIT)) -#define PxD_FLAG_ATTACHED (1 << xlate_pabit(_PxD_ATTACHED_BIT)) -#define PxD_FLAG_VALID (1 << xlate_pabit(_PxD_VALID_BIT)) -#define PxD_FLAG_MASK (0xf) -#define PxD_FLAG_SHIFT (4) -#define PxD_VALUE_SHIFT (8) /* (PAGE_SHIFT-PxD_FLAG_SHIFT) */ - -#ifndef __ASSEMBLY__ - -#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) -#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) -/* Others seem to make this executable, I don't know if that's correct - or not. The stack is mapped this way though so this is necessary - in the short term - dhd@linuxcare.com, 2000-08-08 */ -#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -#define PAGE_WRITEONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_WRITE | _PAGE_ACCESSED) -#define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) -#define PAGE_COPY PAGE_EXECREAD -#define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) -#define PAGE_KERNEL __pgprot(_PAGE_KERNEL) -#define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL & ~_PAGE_WRITE) -#define PAGE_KERNEL_UNC __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE) -#define PAGE_GATEWAY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ) -#define PAGE_FLUSH __pgprot(_PAGE_FLUSH) - - -/* - * We could have an execute only page using "gateway - promote to priv - * level 3", but that is kind of silly. So, the way things are defined - * now, we must always have read permission for pages with execute - * permission. For the fun of it we'll go ahead and support write only - * pages. - */ - - /*xwr*/ -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY -#define __P010 __P000 /* copy on write */ -#define __P011 __P001 /* copy on write */ -#define __P100 PAGE_EXECREAD -#define __P101 PAGE_EXECREAD -#define __P110 __P100 /* copy on write */ -#define __P111 __P101 /* copy on write */ - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY -#define __S010 PAGE_WRITEONLY -#define __S011 PAGE_SHARED -#define __S100 PAGE_EXECREAD -#define __S101 PAGE_EXECREAD -#define __S110 PAGE_RWX -#define __S111 PAGE_RWX - - -extern pgd_t swapper_pg_dir[]; /* declared in init_task.c */ - -/* initial page tables for 0-8MB for kernel */ - -extern pte_t pg0[]; - -/* zero page used for uninitialized stuff */ - -extern unsigned long *empty_zero_page; - -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ - -#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) - -#define pte_none(x) ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH)) -#define pte_present(x) (pte_val(x) & _PAGE_PRESENT) -#define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0) - -#define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK) -#define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) -#define pgd_flag(x) (pgd_val(x) & PxD_FLAG_MASK) -#define pgd_address(x) ((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) - -#if PT_NLEVELS == 3 -/* The first entry of the permanent pmd is not there if it contains - * the gateway marker */ -#define pmd_none(x) (!pmd_val(x) || pmd_flag(x) == PxD_FLAG_ATTACHED) -#else -#define pmd_none(x) (!pmd_val(x)) -#endif -#define pmd_bad(x) (!(pmd_flag(x) & PxD_FLAG_VALID)) -#define pmd_present(x) (pmd_flag(x) & PxD_FLAG_PRESENT) -static inline void pmd_clear(pmd_t *pmd) { -#if PT_NLEVELS == 3 - if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) - /* This is the entry pointing to the permanent pmd - * attached to the pgd; cannot clear it */ - __pmd_val_set(*pmd, PxD_FLAG_ATTACHED); - else -#endif - __pmd_val_set(*pmd, 0); -} - - - -#if PT_NLEVELS == 3 -#define pgd_page_vaddr(pgd) ((unsigned long) __va(pgd_address(pgd))) -#define pgd_page(pgd) virt_to_page((void *)pgd_page_vaddr(pgd)) - -/* For 64 bit we have three level tables */ - -#define pgd_none(x) (!pgd_val(x)) -#define pgd_bad(x) (!(pgd_flag(x) & PxD_FLAG_VALID)) -#define pgd_present(x) (pgd_flag(x) & PxD_FLAG_PRESENT) -static inline void pgd_clear(pgd_t *pgd) { -#if PT_NLEVELS == 3 - if(pgd_flag(*pgd) & PxD_FLAG_ATTACHED) - /* This is the permanent pmd attached to the pgd; cannot - * free it */ - return; -#endif - __pgd_val_set(*pgd, 0); -} -#else -/* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - */ -static inline int pgd_none(pgd_t pgd) { return 0; } -static inline int pgd_bad(pgd_t pgd) { return 0; } -static inline int pgd_present(pgd_t pgd) { return 1; } -static inline void pgd_clear(pgd_t * pgdp) { } -#endif - -/* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } -static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } -static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITE; } -static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; } -static inline int pte_special(pte_t pte) { return 0; } - -static inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~_PAGE_DIRTY; return pte; } -static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~_PAGE_ACCESSED; return pte; } -static inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= ~_PAGE_WRITE; return pte; } -static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= _PAGE_DIRTY; return pte; } -static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) |= _PAGE_WRITE; return pte; } -static inline pte_t pte_mkspecial(pte_t pte) { return pte; } - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ -#define __mk_pte(addr,pgprot) \ -({ \ - pte_t __pte; \ - \ - pte_val(__pte) = ((((addr)>>PAGE_SHIFT)<> PFN_PTE_SHIFT) - -#define pte_page(pte) (pfn_to_page(pte_pfn(pte))) - -#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_address(pmd))) - -#define __pmd_page(pmd) ((unsigned long) __va(pmd_address(pmd))) -#define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd)) - -#define pgd_index(address) ((address) >> PGDIR_SHIFT) - -/* to find an entry in a page-table-directory */ -#define pgd_offset(mm, address) \ -((mm)->pgd + ((address) >> PGDIR_SHIFT)) - -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* Find an entry in the second-level page table.. */ - -#if PT_NLEVELS == 3 -#define pmd_offset(dir,address) \ -((pmd_t *) pgd_page_vaddr(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1))) -#else -#define pmd_offset(dir,addr) ((pmd_t *) dir) -#endif - -/* Find an entry in the third-level page table.. */ -#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1)) -#define pte_offset_kernel(pmd, address) \ - ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address)) -#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) -#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address) -#define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) - -#define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) - -extern void paging_init (void); - -/* Used for deferring calls to flush_dcache_page() */ - -#define PG_dcache_dirty PG_arch_1 - -extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t); - -/* Encode and de-code a swap entry */ - -#define __swp_type(x) ((x).val & 0x1f) -#define __swp_offset(x) ( (((x).val >> 6) & 0x7) | \ - (((x).val >> 8) & ~0x7) ) -#define __swp_entry(type, offset) ((swp_entry_t) { (type) | \ - ((offset & 0x7) << 6) | \ - ((offset & ~0x7) << 8) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - if (!pte_young(*ptep)) - return 0; - return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep)); -#else - pte_t pte = *ptep; - if (!pte_young(pte)) - return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte)); - return 1; -#endif -} - -extern spinlock_t pa_dbit_lock; - -struct mm_struct; -static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - pte_t old_pte; - pte_t pte; - - spin_lock(&pa_dbit_lock); - pte = old_pte = *ptep; - pte_val(pte) &= ~_PAGE_PRESENT; - pte_val(pte) |= _PAGE_FLUSH; - set_pte_at(mm,addr,ptep,pte); - spin_unlock(&pa_dbit_lock); - - return old_pte; -} - -static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - unsigned long new, old; - - do { - old = pte_val(*ptep); - new = pte_val(pte_wrprotect(__pte (old))); - } while (cmpxchg((unsigned long *) ptep, old, new) != old); -#else - pte_t old_pte = *ptep; - set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); -#endif -} - -#define pte_same(A,B) (pte_val(A) == pte_val(B)) - -#endif /* !__ASSEMBLY__ */ - - -/* TLB page size encoding - see table 3-1 in parisc20.pdf */ -#define _PAGE_SIZE_ENCODING_4K 0 -#define _PAGE_SIZE_ENCODING_16K 1 -#define _PAGE_SIZE_ENCODING_64K 2 -#define _PAGE_SIZE_ENCODING_256K 3 -#define _PAGE_SIZE_ENCODING_1M 4 -#define _PAGE_SIZE_ENCODING_4M 5 -#define _PAGE_SIZE_ENCODING_16M 6 -#define _PAGE_SIZE_ENCODING_64M 7 - -#if defined(CONFIG_PARISC_PAGE_SIZE_4KB) -# define _PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_4K -#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB) -# define _PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_16K -#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB) -# define _PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_64K -#endif - - -#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ - remap_pfn_range(vma, vaddr, pfn, size, prot) - -#define pgprot_noncached(prot) __pgprot(pgprot_val(prot) | _PAGE_NO_CACHE) - -/* We provide our own get_unmapped_area to provide cache coherency */ - -#define HAVE_ARCH_UNMAPPED_AREA - -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR -#define __HAVE_ARCH_PTEP_SET_WRPROTECT -#define __HAVE_ARCH_PTE_SAME -#include - -#endif /* _PARISC_PGTABLE_H */ diff --git a/include/asm-parisc/poll.h b/include/asm-parisc/poll.h deleted file mode 100644 index c98509d3149e..000000000000 --- a/include/asm-parisc/poll.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/include/asm-parisc/posix_types.h b/include/asm-parisc/posix_types.h deleted file mode 100644 index bb725a6630bb..000000000000 --- a/include/asm-parisc/posix_types.h +++ /dev/null @@ -1,129 +0,0 @@ -#ifndef __ARCH_PARISC_POSIX_TYPES_H -#define __ARCH_PARISC_POSIX_TYPES_H - -/* - * This file is generally used by user-level software, so you need to - * be a little careful about namespace pollution etc. Also, we cannot - * assume GCC is being used. - */ -typedef unsigned long __kernel_ino_t; -typedef unsigned short __kernel_mode_t; -typedef unsigned short __kernel_nlink_t; -typedef long __kernel_off_t; -typedef int __kernel_pid_t; -typedef unsigned short __kernel_ipc_pid_t; -typedef unsigned int __kernel_uid_t; -typedef unsigned int __kernel_gid_t; -typedef int __kernel_suseconds_t; -typedef long __kernel_clock_t; -typedef int __kernel_timer_t; -typedef int __kernel_clockid_t; -typedef int __kernel_daddr_t; -/* Note these change from narrow to wide kernels */ -#ifdef CONFIG_64BIT -typedef unsigned long __kernel_size_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; -typedef long __kernel_time_t; -#else -typedef unsigned int __kernel_size_t; -typedef int __kernel_ssize_t; -typedef int __kernel_ptrdiff_t; -typedef long __kernel_time_t; -#endif -typedef char * __kernel_caddr_t; - -typedef unsigned short __kernel_uid16_t; -typedef unsigned short __kernel_gid16_t; -typedef unsigned int __kernel_uid32_t; -typedef unsigned int __kernel_gid32_t; - -#ifdef __GNUC__ -typedef long long __kernel_loff_t; -typedef long long __kernel_off64_t; -typedef unsigned long long __kernel_ino64_t; -#endif - -typedef unsigned int __kernel_old_dev_t; - -typedef struct { - int val[2]; -} __kernel_fsid_t; - -/* compatibility stuff */ -typedef __kernel_uid_t __kernel_old_uid_t; -typedef __kernel_gid_t __kernel_old_gid_t; - -#if defined(__KERNEL__) - -#undef __FD_SET -static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - __fdsetp->fds_bits[__tmp] |= (1UL<<__rem); -} - -#undef __FD_CLR -static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem); -} - -#undef __FD_ISSET -static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0; -} - -/* - * This will unroll the loop for the normal constant case (8 ints, - * for a 256-bit fd_set) - */ -#undef __FD_ZERO -static __inline__ void __FD_ZERO(__kernel_fd_set *__p) -{ - unsigned long *__tmp = __p->fds_bits; - int __i; - - if (__builtin_constant_p(__FDSET_LONGS)) { - switch (__FDSET_LONGS) { - case 16: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - __tmp[ 4] = 0; __tmp[ 5] = 0; - __tmp[ 6] = 0; __tmp[ 7] = 0; - __tmp[ 8] = 0; __tmp[ 9] = 0; - __tmp[10] = 0; __tmp[11] = 0; - __tmp[12] = 0; __tmp[13] = 0; - __tmp[14] = 0; __tmp[15] = 0; - return; - - case 8: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - __tmp[ 4] = 0; __tmp[ 5] = 0; - __tmp[ 6] = 0; __tmp[ 7] = 0; - return; - - case 4: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - return; - } - } - __i = __FDSET_LONGS; - while (__i) { - __i--; - *__tmp = 0; - __tmp++; - } -} - -#endif /* defined(__KERNEL__) */ - -#endif diff --git a/include/asm-parisc/prefetch.h b/include/asm-parisc/prefetch.h deleted file mode 100644 index c5edc60c059f..000000000000 --- a/include/asm-parisc/prefetch.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * include/asm-parisc/prefetch.h - * - * PA 2.0 defines data prefetch instructions on page 6-11 of the Kane book. - * In addition, many implementations do hardware prefetching of both - * instructions and data. - * - * PA7300LC (page 14-4 of the ERS) also implements prefetching by a load - * to gr0 but not in a way that Linux can use. If the load would cause an - * interruption (eg due to prefetching 0), it is suppressed on PA2.0 - * processors, but not on 7300LC. - * - */ - -#ifndef __ASM_PARISC_PREFETCH_H -#define __ASM_PARISC_PREFETCH_H - -#ifndef __ASSEMBLY__ -#ifdef CONFIG_PREFETCH - -#define ARCH_HAS_PREFETCH -static inline void prefetch(const void *addr) -{ - __asm__("ldw 0(%0), %%r0" : : "r" (addr)); -} - -/* LDD is a PA2.0 addition. */ -#ifdef CONFIG_PA20 -#define ARCH_HAS_PREFETCHW -static inline void prefetchw(const void *addr) -{ - __asm__("ldd 0(%0), %%r0" : : "r" (addr)); -} -#endif /* CONFIG_PA20 */ - -#endif /* CONFIG_PREFETCH */ -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_PARISC_PROCESSOR_H */ diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h deleted file mode 100644 index 3c9d34844c83..000000000000 --- a/include/asm-parisc/processor.h +++ /dev/null @@ -1,357 +0,0 @@ -/* - * include/asm-parisc/processor.h - * - * Copyright (C) 1994 Linus Torvalds - * Copyright (C) 2001 Grant Grundler - */ - -#ifndef __ASM_PARISC_PROCESSOR_H -#define __ASM_PARISC_PROCESSOR_H - -#ifndef __ASSEMBLY__ -#include - -#include -#include -#include -#include -#include -#include -#endif /* __ASSEMBLY__ */ - -#define KERNEL_STACK_SIZE (4*PAGE_SIZE) - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#ifdef CONFIG_PA20 -#define current_ia(x) __asm__("mfia %0" : "=r"(x)) -#else /* mfia added in pa2.0 */ -#define current_ia(x) __asm__("blr 0,%0\n\tnop" : "=r"(x)) -#endif -#define current_text_addr() ({ void *pc; current_ia(pc); pc; }) - -#define TASK_SIZE_OF(tsk) ((tsk)->thread.task_size) -#define TASK_SIZE TASK_SIZE_OF(current) -#define TASK_UNMAPPED_BASE (current->thread.map_base) - -#define DEFAULT_TASK_SIZE32 (0xFFF00000UL) -#define DEFAULT_MAP_BASE32 (0x40000000UL) - -#ifdef CONFIG_64BIT -#define DEFAULT_TASK_SIZE (MAX_ADDRESS-0xf000000) -#define DEFAULT_MAP_BASE (0x200000000UL) -#else -#define DEFAULT_TASK_SIZE DEFAULT_TASK_SIZE32 -#define DEFAULT_MAP_BASE DEFAULT_MAP_BASE32 -#endif - -#ifdef __KERNEL__ - -/* XXX: STACK_TOP actually should be STACK_BOTTOM for parisc. - * prumpf */ - -#define STACK_TOP TASK_SIZE -#define STACK_TOP_MAX DEFAULT_TASK_SIZE - -#endif - -#ifndef __ASSEMBLY__ - -/* - * Data detected about CPUs at boot time which is the same for all CPU's. - * HP boxes are SMP - ie identical processors. - * - * FIXME: some CPU rev info may be processor specific... - */ -struct system_cpuinfo_parisc { - unsigned int cpu_count; - unsigned int cpu_hz; - unsigned int hversion; - unsigned int sversion; - enum cpu_type cpu_type; - - struct { - struct pdc_model model; - unsigned long versions; - unsigned long cpuid; - unsigned long capabilities; - char sys_model_name[81]; /* PDC-ROM returnes this model name */ - } pdc; - - const char *cpu_name; /* e.g. "PA7300LC (PCX-L2)" */ - const char *family_name; /* e.g. "1.1e" */ -}; - - -/* Per CPU data structure - ie varies per CPU. */ -struct cpuinfo_parisc { - unsigned long it_value; /* Interval Timer at last timer Intr */ - unsigned long it_delta; /* Interval delta (tic_10ms / HZ * 100) */ - unsigned long irq_count; /* number of IRQ's since boot */ - unsigned long irq_max_cr16; /* longest time to handle a single IRQ */ - unsigned long cpuid; /* aka slot_number or set to NO_PROC_ID */ - unsigned long hpa; /* Host Physical address */ - unsigned long txn_addr; /* MMIO addr of EIR or id_eid */ -#ifdef CONFIG_SMP - unsigned long pending_ipi; /* bitmap of type ipi_message_type */ - unsigned long ipi_count; /* number ipi Interrupts */ -#endif - unsigned long bh_count; /* number of times bh was invoked */ - unsigned long prof_counter; /* per CPU profiling support */ - unsigned long prof_multiplier; /* per CPU profiling support */ - unsigned long fp_rev; - unsigned long fp_model; - unsigned int state; - struct parisc_device *dev; - unsigned long loops_per_jiffy; -}; - -extern struct system_cpuinfo_parisc boot_cpu_data; -extern struct cpuinfo_parisc cpu_data[NR_CPUS]; -#define current_cpu_data cpu_data[smp_processor_id()] - -#define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF) - -typedef struct { - int seg; -} mm_segment_t; - -#define ARCH_MIN_TASKALIGN 8 - -struct thread_struct { - struct pt_regs regs; - unsigned long task_size; - unsigned long map_base; - unsigned long flags; -}; - -/* Thread struct flags. */ -#define PARISC_UAC_NOPRINT (1UL << 0) /* see prctl and unaligned.c */ -#define PARISC_UAC_SIGBUS (1UL << 1) -#define PARISC_KERNEL_DEATH (1UL << 31) /* see die_if_kernel()... */ - -#define PARISC_UAC_SHIFT 0 -#define PARISC_UAC_MASK (PARISC_UAC_NOPRINT|PARISC_UAC_SIGBUS) - -#define SET_UNALIGN_CTL(task,value) \ - ({ \ - (task)->thread.flags = (((task)->thread.flags & ~PARISC_UAC_MASK) \ - | (((value) << PARISC_UAC_SHIFT) & \ - PARISC_UAC_MASK)); \ - 0; \ - }) - -#define GET_UNALIGN_CTL(task,addr) \ - ({ \ - put_user(((task)->thread.flags & PARISC_UAC_MASK) \ - >> PARISC_UAC_SHIFT, (int __user *) (addr)); \ - }) - -#define INIT_THREAD { \ - .regs = { .gr = { 0, }, \ - .fr = { 0, }, \ - .sr = { 0, }, \ - .iasq = { 0, }, \ - .iaoq = { 0, }, \ - .cr27 = 0, \ - }, \ - .task_size = DEFAULT_TASK_SIZE, \ - .map_base = DEFAULT_MAP_BASE, \ - .flags = 0 \ - } - -/* - * Return saved PC of a blocked thread. This is used by ps mostly. - */ - -unsigned long thread_saved_pc(struct task_struct *t); -void show_trace(struct task_struct *task, unsigned long *stack); - -/* - * Start user thread in another space. - * - * Note that we set both the iaoq and r31 to the new pc. When - * the kernel initially calls execve it will return through an - * rfi path that will use the values in the iaoq. The execve - * syscall path will return through the gateway page, and - * that uses r31 to branch to. - * - * For ELF we clear r23, because the dynamic linker uses it to pass - * the address of the finalizer function. - * - * We also initialize sr3 to an illegal value (illegal for our - * implementation, not for the architecture). - */ -typedef unsigned int elf_caddr_t; - -#define start_thread_som(regs, new_pc, new_sp) do { \ - unsigned long *sp = (unsigned long *)new_sp; \ - __u32 spaceid = (__u32)current->mm->context; \ - unsigned long pc = (unsigned long)new_pc; \ - /* offset pc for priv. level */ \ - pc |= 3; \ - \ - set_fs(USER_DS); \ - regs->iasq[0] = spaceid; \ - regs->iasq[1] = spaceid; \ - regs->iaoq[0] = pc; \ - regs->iaoq[1] = pc + 4; \ - regs->sr[2] = LINUX_GATEWAY_SPACE; \ - regs->sr[3] = 0xffff; \ - regs->sr[4] = spaceid; \ - regs->sr[5] = spaceid; \ - regs->sr[6] = spaceid; \ - regs->sr[7] = spaceid; \ - regs->gr[ 0] = USER_PSW; \ - regs->gr[30] = ((new_sp)+63)&~63; \ - regs->gr[31] = pc; \ - \ - get_user(regs->gr[26],&sp[0]); \ - get_user(regs->gr[25],&sp[-1]); \ - get_user(regs->gr[24],&sp[-2]); \ - get_user(regs->gr[23],&sp[-3]); \ -} while(0) - -/* The ELF abi wants things done a "wee bit" differently than - * som does. Supporting this behavior here avoids - * having our own version of create_elf_tables. - * - * Oh, and yes, that is not a typo, we are really passing argc in r25 - * and argv in r24 (rather than r26 and r25). This is because that's - * where __libc_start_main wants them. - * - * Duplicated from dl-machine.h for the benefit of readers: - * - * Our initial stack layout is rather different from everyone else's - * due to the unique PA-RISC ABI. As far as I know it looks like - * this: - - ----------------------------------- (user startup code creates this frame) - | 32 bytes of magic | - |---------------------------------| - | 32 bytes argument/sp save area | - |---------------------------------| (bprm->p) - | ELF auxiliary info | - | (up to 28 words) | - |---------------------------------| - | NULL | - |---------------------------------| - | Environment pointers | - |---------------------------------| - | NULL | - |---------------------------------| - | Argument pointers | - |---------------------------------| <- argv - | argc (1 word) | - |---------------------------------| <- bprm->exec (HACK!) - | N bytes of slack | - |---------------------------------| - | filename passed to execve | - |---------------------------------| (mm->env_end) - | env strings | - |---------------------------------| (mm->env_start, mm->arg_end) - | arg strings | - |---------------------------------| - | additional faked arg strings if | - | we're invoked via binfmt_script | - |---------------------------------| (mm->arg_start) - stack base is at TASK_SIZE - rlim_max. - -on downward growing arches, it looks like this: - stack base at TASK_SIZE - | filename passed to execve - | env strings - | arg strings - | faked arg strings - | slack - | ELF - | envps - | argvs - | argc - - * The pleasant part of this is that if we need to skip arguments we - * can just decrement argc and move argv, because the stack pointer - * is utterly unrelated to the location of the environment and - * argument vectors. - * - * Note that the S/390 people took the easy way out and hacked their - * GCC to make the stack grow downwards. - * - * Final Note: For entry from syscall, the W (wide) bit of the PSW - * is stuffed into the lowest bit of the user sp (%r30), so we fill - * it in here from the current->personality - */ - -#ifdef CONFIG_64BIT -#define USER_WIDE_MODE (!test_thread_flag(TIF_32BIT)) -#else -#define USER_WIDE_MODE 0 -#endif - -#define start_thread(regs, new_pc, new_sp) do { \ - elf_addr_t *sp = (elf_addr_t *)new_sp; \ - __u32 spaceid = (__u32)current->mm->context; \ - elf_addr_t pc = (elf_addr_t)new_pc | 3; \ - elf_caddr_t *argv = (elf_caddr_t *)bprm->exec + 1; \ - \ - set_fs(USER_DS); \ - regs->iasq[0] = spaceid; \ - regs->iasq[1] = spaceid; \ - regs->iaoq[0] = pc; \ - regs->iaoq[1] = pc + 4; \ - regs->sr[2] = LINUX_GATEWAY_SPACE; \ - regs->sr[3] = 0xffff; \ - regs->sr[4] = spaceid; \ - regs->sr[5] = spaceid; \ - regs->sr[6] = spaceid; \ - regs->sr[7] = spaceid; \ - regs->gr[ 0] = USER_PSW | (USER_WIDE_MODE ? PSW_W : 0); \ - regs->fr[ 0] = 0LL; \ - regs->fr[ 1] = 0LL; \ - regs->fr[ 2] = 0LL; \ - regs->fr[ 3] = 0LL; \ - regs->gr[30] = (((unsigned long)sp + 63) &~ 63) | (USER_WIDE_MODE ? 1 : 0); \ - regs->gr[31] = pc; \ - \ - get_user(regs->gr[25], (argv - 1)); \ - regs->gr[24] = (long) argv; \ - regs->gr[23] = 0; \ -} while(0) - -struct task_struct; -struct mm_struct; - -/* Free all resources held by a thread. */ -extern void release_thread(struct task_struct *); -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - -extern void map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm); - -extern unsigned long get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) ((tsk)->thread.regs.iaoq[0]) -#define KSTK_ESP(tsk) ((tsk)->thread.regs.gr[30]) - -#define cpu_relax() barrier() - -/* Used as a macro to identify the combined VIPT/PIPT cached - * CPUs which require a guarantee of coherency (no inequivalent - * aliases with different data, whether clean or not) to operate */ -static inline int parisc_requires_coherency(void) -{ -#ifdef CONFIG_PA8X00 - return (boot_cpu_data.cpu_type == mako) || - (boot_cpu_data.cpu_type == mako2); -#else - return 0; -#endif -} - -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_PARISC_PROCESSOR_H */ diff --git a/include/asm-parisc/psw.h b/include/asm-parisc/psw.h deleted file mode 100644 index 5a3e23c9ce63..000000000000 --- a/include/asm-parisc/psw.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef _PARISC_PSW_H - - -#define PSW_I 0x00000001 -#define PSW_D 0x00000002 -#define PSW_P 0x00000004 -#define PSW_Q 0x00000008 - -#define PSW_R 0x00000010 -#define PSW_F 0x00000020 -#define PSW_G 0x00000040 /* PA1.x only */ -#define PSW_O 0x00000080 /* PA2.0 only */ - -/* ssm/rsm instructions number PSW_W and PSW_E differently */ -#define PSW_SM_I PSW_I /* Enable External Interrupts */ -#define PSW_SM_D PSW_D -#define PSW_SM_P PSW_P -#define PSW_SM_Q PSW_Q /* Enable Interrupt State Collection */ -#define PSW_SM_R PSW_R /* Enable Recover Counter Trap */ -#define PSW_SM_W 0x200 /* PA2.0 only : Enable Wide Mode */ - -#define PSW_SM_QUIET PSW_SM_R+PSW_SM_Q+PSW_SM_P+PSW_SM_D+PSW_SM_I - -#define PSW_CB 0x0000ff00 - -#define PSW_M 0x00010000 -#define PSW_V 0x00020000 -#define PSW_C 0x00040000 -#define PSW_B 0x00080000 - -#define PSW_X 0x00100000 -#define PSW_N 0x00200000 -#define PSW_L 0x00400000 -#define PSW_H 0x00800000 - -#define PSW_T 0x01000000 -#define PSW_S 0x02000000 -#define PSW_E 0x04000000 -#define PSW_W 0x08000000 /* PA2.0 only */ -#define PSW_W_BIT 36 /* PA2.0 only */ - -#define PSW_Z 0x40000000 /* PA1.x only */ -#define PSW_Y 0x80000000 /* PA1.x only */ - -#ifdef CONFIG_64BIT -# define PSW_HI_CB 0x000000ff /* PA2.0 only */ -#endif - -#ifdef CONFIG_64BIT -# define USER_PSW_HI_MASK PSW_HI_CB -# define WIDE_PSW PSW_W -#else -# define WIDE_PSW 0 -#endif - -/* Used when setting up for rfi */ -#define KERNEL_PSW (WIDE_PSW | PSW_C | PSW_Q | PSW_P | PSW_D) -#define REAL_MODE_PSW (WIDE_PSW | PSW_Q) -#define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB) -#define USER_PSW (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I) - -#endif diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h deleted file mode 100644 index 3e94c5d85ff5..000000000000 --- a/include/asm-parisc/ptrace.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _PARISC_PTRACE_H -#define _PARISC_PTRACE_H - -/* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg -** Copyright (C) 2000 Grant Grundler, Hewlett-Packard -*/ - -#include - -/* This struct defines the way the registers are stored on the - * stack during a system call. - * - * N.B. gdb/strace care about the size and offsets within this - * structure. If you change things, you may break object compatibility - * for those applications. - */ - -struct pt_regs { - unsigned long gr[32]; /* PSW is in gr[0] */ - __u64 fr[32]; - unsigned long sr[ 8]; - unsigned long iasq[2]; - unsigned long iaoq[2]; - unsigned long cr27; - unsigned long pad0; /* available for other uses */ - unsigned long orig_r28; - unsigned long ksp; - unsigned long kpc; - unsigned long sar; /* CR11 */ - unsigned long iir; /* CR19 */ - unsigned long isr; /* CR20 */ - unsigned long ior; /* CR21 */ - unsigned long ipsw; /* CR22 */ -}; - -/* - * The numbers chosen here are somewhat arbitrary but absolutely MUST - * not overlap with any of the number assigned in . - * - * These ones are taken from IA-64 on the assumption that theirs are - * the most correct (and we also want to support PTRACE_SINGLEBLOCK - * since we have taken branch traps too) - */ -#define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ - -#ifdef __KERNEL__ - -#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS)) - -/* XXX should we use iaoq[1] or iaoq[0] ? */ -#define user_mode(regs) (((regs)->iaoq[0] & 3) ? 1 : 0) -#define user_space(regs) (((regs)->iasq[1] != 0) ? 1 : 0) -#define instruction_pointer(regs) ((regs)->iaoq[0] & ~3) -unsigned long profile_pc(struct pt_regs *); -extern void show_regs(struct pt_regs *); -#endif - -#endif diff --git a/include/asm-parisc/real.h b/include/asm-parisc/real.h deleted file mode 100644 index 82acb25db395..000000000000 --- a/include/asm-parisc/real.h +++ /dev/null @@ -1,5 +0,0 @@ -#ifndef _PARISC_REAL_H -#define _PARISC_REAL_H - - -#endif diff --git a/include/asm-parisc/resource.h b/include/asm-parisc/resource.h deleted file mode 100644 index 8b06343b62ed..000000000000 --- a/include/asm-parisc/resource.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _ASM_PARISC_RESOURCE_H -#define _ASM_PARISC_RESOURCE_H - -#define _STK_LIM_MAX 10 * _STK_LIM -#include - -#endif diff --git a/include/asm-parisc/ropes.h b/include/asm-parisc/ropes.h deleted file mode 100644 index 09f51d5ab57c..000000000000 --- a/include/asm-parisc/ropes.h +++ /dev/null @@ -1,322 +0,0 @@ -#ifndef _ASM_PARISC_ROPES_H_ -#define _ASM_PARISC_ROPES_H_ - -#include - -#ifdef CONFIG_64BIT -/* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */ -#define ZX1_SUPPORT -#endif - -#ifdef CONFIG_PROC_FS -/* depends on proc fs support. But costs CPU performance */ -#undef SBA_COLLECT_STATS -#endif - -/* -** The number of pdir entries to "free" before issuing -** a read to PCOM register to flush out PCOM writes. -** Interacts with allocation granularity (ie 4 or 8 entries -** allocated and free'd/purged at a time might make this -** less interesting). -*/ -#define DELAYED_RESOURCE_CNT 16 - -#define MAX_IOC 2 /* per Ike. Pluto/Astro only have 1. */ -#define ROPES_PER_IOC 8 /* per Ike half or Pluto/Astro */ - -struct ioc { - void __iomem *ioc_hpa; /* I/O MMU base address */ - char *res_map; /* resource map, bit == pdir entry */ - u64 *pdir_base; /* physical base address */ - unsigned long ibase; /* pdir IOV Space base - shared w/lba_pci */ - unsigned long imask; /* pdir IOV Space mask - shared w/lba_pci */ -#ifdef ZX1_SUPPORT - unsigned long iovp_mask; /* help convert IOVA to IOVP */ -#endif - unsigned long *res_hint; /* next avail IOVP - circular search */ - spinlock_t res_lock; - unsigned int res_bitshift; /* from the LEFT! */ - unsigned int res_size; /* size of resource map in bytes */ -#ifdef SBA_HINT_SUPPORT -/* FIXME : DMA HINTs not used */ - unsigned long hint_mask_pdir; /* bits used for DMA hints */ - unsigned int hint_shift_pdir; -#endif -#if DELAYED_RESOURCE_CNT > 0 - int saved_cnt; - struct sba_dma_pair { - dma_addr_t iova; - size_t size; - } saved[DELAYED_RESOURCE_CNT]; -#endif - -#ifdef SBA_COLLECT_STATS -#define SBA_SEARCH_SAMPLE 0x100 - unsigned long avg_search[SBA_SEARCH_SAMPLE]; - unsigned long avg_idx; /* current index into avg_search */ - unsigned long used_pages; - unsigned long msingle_calls; - unsigned long msingle_pages; - unsigned long msg_calls; - unsigned long msg_pages; - unsigned long usingle_calls; - unsigned long usingle_pages; - unsigned long usg_calls; - unsigned long usg_pages; -#endif - /* STUFF We don't need in performance path */ - unsigned int pdir_size; /* in bytes, determined by IOV Space size */ -}; - -struct sba_device { - struct sba_device *next; /* list of SBA's in system */ - struct parisc_device *dev; /* dev found in bus walk */ - const char *name; - void __iomem *sba_hpa; /* base address */ - spinlock_t sba_lock; - unsigned int flags; /* state/functionality enabled */ - unsigned int hw_rev; /* HW revision of chip */ - - struct resource chip_resv; /* MMIO reserved for chip */ - struct resource iommu_resv; /* MMIO reserved for iommu */ - - unsigned int num_ioc; /* number of on-board IOC's */ - struct ioc ioc[MAX_IOC]; -}; - -#define ASTRO_RUNWAY_PORT 0x582 -#define IKE_MERCED_PORT 0x803 -#define REO_MERCED_PORT 0x804 -#define REOG_MERCED_PORT 0x805 -#define PLUTO_MCKINLEY_PORT 0x880 - -static inline int IS_ASTRO(struct parisc_device *d) { - return d->id.hversion == ASTRO_RUNWAY_PORT; -} - -static inline int IS_IKE(struct parisc_device *d) { - return d->id.hversion == IKE_MERCED_PORT; -} - -static inline int IS_PLUTO(struct parisc_device *d) { - return d->id.hversion == PLUTO_MCKINLEY_PORT; -} - -#define PLUTO_IOVA_BASE (1UL*1024*1024*1024) /* 1GB */ -#define PLUTO_IOVA_SIZE (1UL*1024*1024*1024) /* 1GB */ -#define PLUTO_GART_SIZE (PLUTO_IOVA_SIZE / 2) - -#define SBA_PDIR_VALID_BIT 0x8000000000000000ULL - -#define SBA_AGPGART_COOKIE 0x0000badbadc0ffeeULL - -#define SBA_FUNC_ID 0x0000 /* function id */ -#define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */ - -#define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */ - -#define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE) -#define PLUTO_IOC_OFFSET (1 * SBA_FUNC_SIZE) -/* Ike's IOC's occupy functions 2 and 3 */ -#define IKE_IOC_OFFSET(p) ((p+2) * SBA_FUNC_SIZE) - -#define IOC_CTRL 0x8 /* IOC_CTRL offset */ -#define IOC_CTRL_TC (1 << 0) /* TOC Enable */ -#define IOC_CTRL_CE (1 << 1) /* Coalesce Enable */ -#define IOC_CTRL_DE (1 << 2) /* Dillon Enable */ -#define IOC_CTRL_RM (1 << 8) /* Real Mode */ -#define IOC_CTRL_NC (1 << 9) /* Non Coherent Mode */ -#define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */ -#define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */ - -/* -** Offsets into MBIB (Function 0 on Ike and hopefully Astro) -** Firmware programs this stuff. Don't touch it. -*/ -#define LMMIO_DIRECT0_BASE 0x300 -#define LMMIO_DIRECT0_MASK 0x308 -#define LMMIO_DIRECT0_ROUTE 0x310 - -#define LMMIO_DIST_BASE 0x360 -#define LMMIO_DIST_MASK 0x368 -#define LMMIO_DIST_ROUTE 0x370 - -#define IOS_DIST_BASE 0x390 -#define IOS_DIST_MASK 0x398 -#define IOS_DIST_ROUTE 0x3A0 - -#define IOS_DIRECT_BASE 0x3C0 -#define IOS_DIRECT_MASK 0x3C8 -#define IOS_DIRECT_ROUTE 0x3D0 - -/* -** Offsets into I/O TLB (Function 2 and 3 on Ike) -*/ -#define ROPE0_CTL 0x200 /* "regbus pci0" */ -#define ROPE1_CTL 0x208 -#define ROPE2_CTL 0x210 -#define ROPE3_CTL 0x218 -#define ROPE4_CTL 0x220 -#define ROPE5_CTL 0x228 -#define ROPE6_CTL 0x230 -#define ROPE7_CTL 0x238 - -#define IOC_ROPE0_CFG 0x500 /* pluto only */ -#define IOC_ROPE_AO 0x10 /* Allow "Relaxed Ordering" */ - -#define HF_ENABLE 0x40 - -#define IOC_IBASE 0x300 /* IO TLB */ -#define IOC_IMASK 0x308 -#define IOC_PCOM 0x310 -#define IOC_TCNFG 0x318 -#define IOC_PDIR_BASE 0x320 - -/* -** IOC supports 4/8/16/64KB page sizes (see TCNFG register) -** It's safer (avoid memory corruption) to keep DMA page mappings -** equivalently sized to VM PAGE_SIZE. -** -** We really can't avoid generating a new mapping for each -** page since the Virtual Coherence Index has to be generated -** and updated for each page. -** -** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse. -*/ -#define IOVP_SIZE PAGE_SIZE -#define IOVP_SHIFT PAGE_SHIFT -#define IOVP_MASK PAGE_MASK - -#define SBA_PERF_CFG 0x708 /* Performance Counter stuff */ -#define SBA_PERF_MASK1 0x718 -#define SBA_PERF_MASK2 0x730 - -/* -** Offsets into PCI Performance Counters (functions 12 and 13) -** Controlled by PERF registers in function 2 & 3 respectively. -*/ -#define SBA_PERF_CNT1 0x200 -#define SBA_PERF_CNT2 0x208 -#define SBA_PERF_CNT3 0x210 - -/* -** lba_device: Per instance Elroy data structure -*/ -struct lba_device { - struct pci_hba_data hba; - - spinlock_t lba_lock; - void *iosapic_obj; - -#ifdef CONFIG_64BIT - void __iomem *iop_base; /* PA_VIEW - for IO port accessor funcs */ -#endif - - int flags; /* state/functionality enabled */ - int hw_rev; /* HW revision of chip */ -}; - -#define ELROY_HVERS 0x782 -#define MERCURY_HVERS 0x783 -#define QUICKSILVER_HVERS 0x784 - -static inline int IS_ELROY(struct parisc_device *d) { - return (d->id.hversion == ELROY_HVERS); -} - -static inline int IS_MERCURY(struct parisc_device *d) { - return (d->id.hversion == MERCURY_HVERS); -} - -static inline int IS_QUICKSILVER(struct parisc_device *d) { - return (d->id.hversion == QUICKSILVER_HVERS); -} - -static inline int agp_mode_mercury(void __iomem *hpa) { - u64 bus_mode; - - bus_mode = readl(hpa + 0x0620); - if (bus_mode & 1) - return 1; - - return 0; -} - -/* -** I/O SAPIC init function -** Caller knows where an I/O SAPIC is. LBA has an integrated I/O SAPIC. -** Call setup as part of per instance initialization. -** (ie *not* init_module() function unless only one is present.) -** fixup_irq is to initialize PCI IRQ line support and -** virtualize pcidev->irq value. To be called by pci_fixup_bus(). -*/ -extern void *iosapic_register(unsigned long hpa); -extern int iosapic_fixup_irq(void *obj, struct pci_dev *pcidev); - -#define LBA_FUNC_ID 0x0000 /* function id */ -#define LBA_FCLASS 0x0008 /* function class, bist, header, rev... */ -#define LBA_CAPABLE 0x0030 /* capabilities register */ - -#define LBA_PCI_CFG_ADDR 0x0040 /* poke CFG address here */ -#define LBA_PCI_CFG_DATA 0x0048 /* read or write data here */ - -#define LBA_PMC_MTLT 0x0050 /* Firmware sets this - read only. */ -#define LBA_FW_SCRATCH 0x0058 /* Firmware writes the PCI bus number here. */ -#define LBA_ERROR_ADDR 0x0070 /* On error, address gets logged here */ - -#define LBA_ARB_MASK 0x0080 /* bit 0 enable arbitration. PAT/PDC enables */ -#define LBA_ARB_PRI 0x0088 /* firmware sets this. */ -#define LBA_ARB_MODE 0x0090 /* firmware sets this. */ -#define LBA_ARB_MTLT 0x0098 /* firmware sets this. */ - -#define LBA_MOD_ID 0x0100 /* Module ID. PDC_PAT_CELL reports 4 */ - -#define LBA_STAT_CTL 0x0108 /* Status & Control */ -#define LBA_BUS_RESET 0x01 /* Deassert PCI Bus Reset Signal */ -#define CLEAR_ERRLOG 0x10 /* "Clear Error Log" cmd */ -#define CLEAR_ERRLOG_ENABLE 0x20 /* "Clear Error Log" Enable */ -#define HF_ENABLE 0x40 /* enable HF mode (default is -1 mode) */ - -#define LBA_LMMIO_BASE 0x0200 /* < 4GB I/O address range */ -#define LBA_LMMIO_MASK 0x0208 - -#define LBA_GMMIO_BASE 0x0210 /* > 4GB I/O address range */ -#define LBA_GMMIO_MASK 0x0218 - -#define LBA_WLMMIO_BASE 0x0220 /* All < 4GB ranges under the same *SBA* */ -#define LBA_WLMMIO_MASK 0x0228 - -#define LBA_WGMMIO_BASE 0x0230 /* All > 4GB ranges under the same *SBA* */ -#define LBA_WGMMIO_MASK 0x0238 - -#define LBA_IOS_BASE 0x0240 /* I/O port space for this LBA */ -#define LBA_IOS_MASK 0x0248 - -#define LBA_ELMMIO_BASE 0x0250 /* Extra LMMIO range */ -#define LBA_ELMMIO_MASK 0x0258 - -#define LBA_EIOS_BASE 0x0260 /* Extra I/O port space */ -#define LBA_EIOS_MASK 0x0268 - -#define LBA_GLOBAL_MASK 0x0270 /* Mercury only: Global Address Mask */ -#define LBA_DMA_CTL 0x0278 /* firmware sets this */ - -#define LBA_IBASE 0x0300 /* SBA DMA support */ -#define LBA_IMASK 0x0308 - -/* FIXME: ignore DMA Hint stuff until we can measure performance */ -#define LBA_HINT_CFG 0x0310 -#define LBA_HINT_BASE 0x0380 /* 14 registers at every 8 bytes. */ - -#define LBA_BUS_MODE 0x0620 - -/* ERROR regs are needed for config cycle kluges */ -#define LBA_ERROR_CONFIG 0x0680 -#define LBA_SMART_MODE 0x20 -#define LBA_ERROR_STATUS 0x0688 -#define LBA_ROPE_CTL 0x06A0 - -#define LBA_IOSAPIC_BASE 0x800 /* Offset of IRQ logic */ - -#endif /*_ASM_PARISC_ROPES_H_*/ diff --git a/include/asm-parisc/rt_sigframe.h b/include/asm-parisc/rt_sigframe.h deleted file mode 100644 index f0dd3b30f6c4..000000000000 --- a/include/asm-parisc/rt_sigframe.h +++ /dev/null @@ -1,23 +0,0 @@ -#ifndef _ASM_PARISC_RT_SIGFRAME_H -#define _ASM_PARISC_RT_SIGFRAME_H - -#define SIGRETURN_TRAMP 4 -#define SIGRESTARTBLOCK_TRAMP 5 -#define TRAMP_SIZE (SIGRETURN_TRAMP + SIGRESTARTBLOCK_TRAMP) - -struct rt_sigframe { - /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c - Secondary to that it must protect the ERESTART_RESTARTBLOCK - trampoline we left on the stack (we were bad and didn't - change sp so we could run really fast.) */ - unsigned int tramp[TRAMP_SIZE]; - struct siginfo info; - struct ucontext uc; -}; - -#define SIGFRAME 128 -#define FUNCTIONCALLFRAME 96 -#define PARISC_RT_SIGFRAME_SIZE \ - (((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME) + SIGFRAME) & -SIGFRAME) - -#endif diff --git a/include/asm-parisc/rtc.h b/include/asm-parisc/rtc.h deleted file mode 100644 index 099d641a42c2..000000000000 --- a/include/asm-parisc/rtc.h +++ /dev/null @@ -1,131 +0,0 @@ -/* - * include/asm-parisc/rtc.h - * - * Copyright 2002 Randolph CHung - * - * Based on: include/asm-ppc/rtc.h and the genrtc driver in the - * 2.4 parisc linux tree - */ - -#ifndef __ASM_RTC_H__ -#define __ASM_RTC_H__ - -#ifdef __KERNEL__ - -#include - -#include - -#define SECS_PER_HOUR (60 * 60) -#define SECS_PER_DAY (SECS_PER_HOUR * 24) - - -#define RTC_PIE 0x40 /* periodic interrupt enable */ -#define RTC_AIE 0x20 /* alarm interrupt enable */ -#define RTC_UIE 0x10 /* update-finished interrupt enable */ - -#define RTC_BATT_BAD 0x100 /* battery bad */ - -/* some dummy definitions */ -#define RTC_SQWE 0x08 /* enable square-wave output */ -#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */ -#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */ -#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */ - -# define __isleap(year) \ - ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) - -/* How many days come before each month (0-12). */ -static const unsigned short int __mon_yday[2][13] = -{ - /* Normal years. */ - { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, - /* Leap years. */ - { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } -}; - -static inline unsigned int get_rtc_time(struct rtc_time *wtime) -{ - struct pdc_tod tod_data; - long int days, rem, y; - const unsigned short int *ip; - - memset(wtime, 0, sizeof(*wtime)); - if (pdc_tod_read(&tod_data) < 0) - return RTC_24H | RTC_BATT_BAD; - - // most of the remainder of this function is: -// Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc. -// This was originally a part of the GNU C Library. -// It is distributed under the GPL, and was swiped from offtime.c - - - days = tod_data.tod_sec / SECS_PER_DAY; - rem = tod_data.tod_sec % SECS_PER_DAY; - - wtime->tm_hour = rem / SECS_PER_HOUR; - rem %= SECS_PER_HOUR; - wtime->tm_min = rem / 60; - wtime->tm_sec = rem % 60; - - y = 1970; - -#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0)) -#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) - - while (days < 0 || days >= (__isleap (y) ? 366 : 365)) - { - /* Guess a corrected year, assuming 365 days per year. */ - long int yg = y + days / 365 - (days % 365 < 0); - - /* Adjust DAYS and Y to match the guessed year. */ - days -= ((yg - y) * 365 - + LEAPS_THRU_END_OF (yg - 1) - - LEAPS_THRU_END_OF (y - 1)); - y = yg; - } - wtime->tm_year = y - 1900; - - ip = __mon_yday[__isleap(y)]; - for (y = 11; days < (long int) ip[y]; --y) - continue; - days -= ip[y]; - wtime->tm_mon = y; - wtime->tm_mday = days + 1; - - return RTC_24H; -} - -static int set_rtc_time(struct rtc_time *wtime) -{ - u_int32_t secs; - - secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday, - wtime->tm_hour, wtime->tm_min, wtime->tm_sec); - - if(pdc_tod_set(secs, 0) < 0) - return -1; - else - return 0; - -} - -static inline unsigned int get_rtc_ss(void) -{ - struct rtc_time h; - - get_rtc_time(&h); - return h.tm_sec; -} - -static inline int get_rtc_pll(struct rtc_pll_info *pll) -{ - return -EINVAL; -} -static inline int set_rtc_pll(struct rtc_pll_info *pll) -{ - return -EINVAL; -} - -#endif /* __KERNEL__ */ -#endif /* __ASM_RTC_H__ */ diff --git a/include/asm-parisc/runway.h b/include/asm-parisc/runway.h deleted file mode 100644 index 5bea02da7e22..000000000000 --- a/include/asm-parisc/runway.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef ASM_PARISC_RUNWAY_H -#define ASM_PARISC_RUNWAY_H -#ifdef __KERNEL__ - -/* declared in arch/parisc/kernel/setup.c */ -extern struct proc_dir_entry * proc_runway_root; - -#define RUNWAY_STATUS 0x10 -#define RUNWAY_DEBUG 0x40 - -#endif /* __KERNEL__ */ -#endif /* ASM_PARISC_RUNWAY_H */ diff --git a/include/asm-parisc/scatterlist.h b/include/asm-parisc/scatterlist.h deleted file mode 100644 index 62269b31ebf4..000000000000 --- a/include/asm-parisc/scatterlist.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef _ASM_PARISC_SCATTERLIST_H -#define _ASM_PARISC_SCATTERLIST_H - -#include -#include - -struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; -#endif - unsigned long page_link; - unsigned int offset; - - unsigned int length; - - /* an IOVA can be 64-bits on some PA-Risc platforms. */ - dma_addr_t iova; /* I/O Virtual Address */ - __u32 iova_length; /* bytes mapped */ -}; - -#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg)) -#define sg_dma_address(sg) ((sg)->iova) -#define sg_dma_len(sg) ((sg)->iova_length) - -#define ISA_DMA_THRESHOLD (~0UL) - -#endif /* _ASM_PARISC_SCATTERLIST_H */ diff --git a/include/asm-parisc/sections.h b/include/asm-parisc/sections.h deleted file mode 100644 index 9d13c3507ad6..000000000000 --- a/include/asm-parisc/sections.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _PARISC_SECTIONS_H -#define _PARISC_SECTIONS_H - -/* nothing to see, move along */ -#include - -#ifdef CONFIG_64BIT -#undef dereference_function_descriptor -void *dereference_function_descriptor(void *); -#endif - -#endif diff --git a/include/asm-parisc/segment.h b/include/asm-parisc/segment.h deleted file mode 100644 index 26794ddb6524..000000000000 --- a/include/asm-parisc/segment.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __PARISC_SEGMENT_H -#define __PARISC_SEGMENT_H - -/* Only here because we have some old header files that expect it.. */ - -#endif diff --git a/include/asm-parisc/sembuf.h b/include/asm-parisc/sembuf.h deleted file mode 100644 index 1e59ffd3bd1e..000000000000 --- a/include/asm-parisc/sembuf.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef _PARISC_SEMBUF_H -#define _PARISC_SEMBUF_H - -/* - * The semid64_ds structure for parisc architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ -#ifndef CONFIG_64BIT - unsigned int __pad1; -#endif - __kernel_time_t sem_otime; /* last semop time */ -#ifndef CONFIG_64BIT - unsigned int __pad2; -#endif - __kernel_time_t sem_ctime; /* last change time */ - unsigned int sem_nsems; /* no. of semaphores in array */ - unsigned int __unused1; - unsigned int __unused2; -}; - -#endif /* _PARISC_SEMBUF_H */ diff --git a/include/asm-parisc/serial.h b/include/asm-parisc/serial.h deleted file mode 100644 index d7e3cc60dbc3..000000000000 --- a/include/asm-parisc/serial.h +++ /dev/null @@ -1,10 +0,0 @@ -/* - * include/asm-parisc/serial.h - */ - -/* - * This is used for 16550-compatible UARTs - */ -#define BASE_BAUD ( 1843200 / 16 ) - -#define SERIAL_PORT_DFNS diff --git a/include/asm-parisc/setup.h b/include/asm-parisc/setup.h deleted file mode 100644 index 7da2e5b8747e..000000000000 --- a/include/asm-parisc/setup.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _PARISC_SETUP_H -#define _PARISC_SETUP_H - -#define COMMAND_LINE_SIZE 1024 - -#endif /* _PARISC_SETUP_H */ diff --git a/include/asm-parisc/shmbuf.h b/include/asm-parisc/shmbuf.h deleted file mode 100644 index 0a3eada1863b..000000000000 --- a/include/asm-parisc/shmbuf.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _PARISC_SHMBUF_H -#define _PARISC_SHMBUF_H - -/* - * The shmid64_ds structure for parisc architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ -#ifndef CONFIG_64BIT - unsigned int __pad1; -#endif - __kernel_time_t shm_atime; /* last attach time */ -#ifndef CONFIG_64BIT - unsigned int __pad2; -#endif - __kernel_time_t shm_dtime; /* last detach time */ -#ifndef CONFIG_64BIT - unsigned int __pad3; -#endif - __kernel_time_t shm_ctime; /* last change time */ -#ifndef CONFIG_64BIT - unsigned int __pad4; -#endif - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned int shm_nattch; /* no. of current attaches */ - unsigned int __unused1; - unsigned int __unused2; -}; - -#ifdef CONFIG_64BIT -/* The 'unsigned int' (formerly 'unsigned long') data types below will - * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on - * a wide kernel, but if some of these values are meant to contain pointers - * they may need to be 'long long' instead. -PB XXX FIXME - */ -#endif -struct shminfo64 { - unsigned int shmmax; - unsigned int shmmin; - unsigned int shmmni; - unsigned int shmseg; - unsigned int shmall; - unsigned int __unused1; - unsigned int __unused2; - unsigned int __unused3; - unsigned int __unused4; -}; - -#endif /* _PARISC_SHMBUF_H */ diff --git a/include/asm-parisc/shmparam.h b/include/asm-parisc/shmparam.h deleted file mode 100644 index 628ddc22faa8..000000000000 --- a/include/asm-parisc/shmparam.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef _ASMPARISC_SHMPARAM_H -#define _ASMPARISC_SHMPARAM_H - -#define __ARCH_FORCE_SHMLBA 1 - -#define SHMLBA 0x00400000 /* attach addr needs to be 4 Mb aligned */ - -#endif /* _ASMPARISC_SHMPARAM_H */ diff --git a/include/asm-parisc/sigcontext.h b/include/asm-parisc/sigcontext.h deleted file mode 100644 index 27ef31bb3b6e..000000000000 --- a/include/asm-parisc/sigcontext.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef _ASMPARISC_SIGCONTEXT_H -#define _ASMPARISC_SIGCONTEXT_H - -#define PARISC_SC_FLAG_ONSTACK 1<<0 -#define PARISC_SC_FLAG_IN_SYSCALL 1<<1 - -/* We will add more stuff here as it becomes necessary, until we know - it works. */ -struct sigcontext { - unsigned long sc_flags; - - unsigned long sc_gr[32]; /* PSW in sc_gr[0] */ - unsigned long long sc_fr[32]; /* FIXME, do we need other state info? */ - unsigned long sc_iasq[2]; - unsigned long sc_iaoq[2]; - unsigned long sc_sar; /* cr11 */ -}; - - -#endif diff --git a/include/asm-parisc/siginfo.h b/include/asm-parisc/siginfo.h deleted file mode 100644 index d4909f55fe35..000000000000 --- a/include/asm-parisc/siginfo.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef _PARISC_SIGINFO_H -#define _PARISC_SIGINFO_H - -#include - -/* - * SIGTRAP si_codes - */ -#define TRAP_BRANCH (__SI_FAULT|3) /* process taken branch trap */ -#define TRAP_HWBKPT (__SI_FAULT|4) /* hardware breakpoint or watchpoint */ -#undef NSIGTRAP -#define NSIGTRAP 4 - -#endif diff --git a/include/asm-parisc/signal.h b/include/asm-parisc/signal.h deleted file mode 100644 index c20356375d1d..000000000000 --- a/include/asm-parisc/signal.h +++ /dev/null @@ -1,153 +0,0 @@ -#ifndef _ASM_PARISC_SIGNAL_H -#define _ASM_PARISC_SIGNAL_H - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGEMT 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGBUS 10 -#define SIGSEGV 11 -#define SIGSYS 12 /* Linux doesn't use this */ -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGUSR1 16 -#define SIGUSR2 17 -#define SIGCHLD 18 -#define SIGPWR 19 -#define SIGVTALRM 20 -#define SIGPROF 21 -#define SIGIO 22 -#define SIGPOLL SIGIO -#define SIGWINCH 23 -#define SIGSTOP 24 -#define SIGTSTP 25 -#define SIGCONT 26 -#define SIGTTIN 27 -#define SIGTTOU 28 -#define SIGURG 29 -#define SIGLOST 30 /* Linux doesn't use this either */ -#define SIGUNUSED 31 -#define SIGRESERVE SIGUNUSED - -#define SIGXCPU 33 -#define SIGXFSZ 34 -#define SIGSTKFLT 36 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 37 -#define SIGRTMAX _NSIG /* it's 44 under HP/UX */ - -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_ONSTACK 0x00000001 -#define SA_RESETHAND 0x00000004 -#define SA_NOCLDSTOP 0x00000008 -#define SA_SIGINFO 0x00000010 -#define SA_NODEFER 0x00000020 -#define SA_RESTART 0x00000040 -#define SA_NOCLDWAIT 0x00000080 -#define _SA_SIGGFAULT 0x00000100 /* HPUX */ - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -#define SA_RESTORER 0x04000000 /* obsolete -- ignored */ - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#ifdef __KERNEL__ - -#define _NSIG 64 -/* bits-per-word, where word apparently means 'long' not 'int' */ -#define _NSIG_BPW BITS_PER_LONG -#define _NSIG_WORDS (_NSIG / _NSIG_BPW) - -#endif /* __KERNEL__ */ - -#define SIG_BLOCK 0 /* for blocking signals */ -#define SIG_UNBLOCK 1 /* for unblocking signals */ -#define SIG_SETMASK 2 /* for setting the signal mask */ - -#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ -#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ -#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ - -# ifndef __ASSEMBLY__ - -# include - -/* Avoid too many header ordering problems. */ -struct siginfo; - -/* Type of a signal handler. */ -#ifdef CONFIG_64BIT -/* function pointers on 64-bit parisc are pointers to little structs and the - * compiler doesn't support code which changes or tests the address of - * the function in the little struct. This is really ugly -PB - */ -typedef char __user *__sighandler_t; -#else -typedef void __signalfn_t(int); -typedef __signalfn_t __user *__sighandler_t; -#endif - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - -#ifdef __KERNEL__ - -/* Most things should be clean enough to redefine this at will, if care - is taken to make libc match. */ - -typedef unsigned long old_sigset_t; /* at least 32 bits */ - -typedef struct { - /* next_signal() assumes this is a long - no choice */ - unsigned long sig[_NSIG_WORDS]; -} sigset_t; - -struct sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - sigset_t sa_mask; /* mask last for extensibility */ -}; - -struct k_sigaction { - struct sigaction sa; -}; - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - -#include - -#endif /* __KERNEL__ */ -#endif /* !__ASSEMBLY */ -#endif /* _ASM_PARISC_SIGNAL_H */ diff --git a/include/asm-parisc/smp.h b/include/asm-parisc/smp.h deleted file mode 100644 index 398cdbaf4e54..000000000000 --- a/include/asm-parisc/smp.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef __ASM_SMP_H -#define __ASM_SMP_H - - -#if defined(CONFIG_SMP) - -/* Page Zero Location PDC will look for the address to branch to when we poke -** slave CPUs still in "Icache loop". -*/ -#define PDC_OS_BOOT_RENDEZVOUS 0x10 -#define PDC_OS_BOOT_RENDEZVOUS_HI 0x28 - -#ifndef ASSEMBLY -#include -#include /* for NR_CPUS */ -#include -typedef unsigned long address_t; - -extern cpumask_t cpu_online_map; - - -/* - * Private routines/data - * - * physical and logical are equivalent until we support CPU hotplug. - */ -#define cpu_number_map(cpu) (cpu) -#define cpu_logical_map(cpu) (cpu) - -extern void smp_send_reschedule(int cpu); -extern void smp_send_all_nop(void); - -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); - -#endif /* !ASSEMBLY */ - -/* - * This magic constant controls our willingness to transfer - * a process across CPUs. Such a transfer incurs cache and tlb - * misses. The current value is inherited from i386. Still needs - * to be tuned for parisc. - */ - -#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */ - -extern unsigned long cpu_present_mask; - -#define raw_smp_processor_id() (current_thread_info()->cpu) - -#else /* CONFIG_SMP */ - -static inline void smp_send_all_nop(void) { return; } - -#endif - -#define NO_PROC_ID 0xFF /* No processor magic marker */ -#define ANY_PROC_ID 0xFF /* Any processor magic marker */ -static inline int __cpu_disable (void) { - return 0; -} -static inline void __cpu_die (unsigned int cpu) { - while(1) - ; -} -extern int __cpu_up (unsigned int cpu); - -#endif /* __ASM_SMP_H */ diff --git a/include/asm-parisc/socket.h b/include/asm-parisc/socket.h deleted file mode 100644 index fba402c95ac2..000000000000 --- a/include/asm-parisc/socket.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - -#include - -/* For setsockopt(2) */ -#define SOL_SOCKET 0xffff - -#define SO_DEBUG 0x0001 -#define SO_REUSEADDR 0x0004 -#define SO_KEEPALIVE 0x0008 -#define SO_DONTROUTE 0x0010 -#define SO_BROADCAST 0x0020 -#define SO_LINGER 0x0080 -#define SO_OOBINLINE 0x0100 -/* To add :#define SO_REUSEPORT 0x0200 */ -#define SO_SNDBUF 0x1001 -#define SO_RCVBUF 0x1002 -#define SO_SNDBUFFORCE 0x100a -#define SO_RCVBUFFORCE 0x100b -#define SO_SNDLOWAT 0x1003 -#define SO_RCVLOWAT 0x1004 -#define SO_SNDTIMEO 0x1005 -#define SO_RCVTIMEO 0x1006 -#define SO_ERROR 0x1007 -#define SO_TYPE 0x1008 -#define SO_PEERNAME 0x2000 - -#define SO_NO_CHECK 0x400b -#define SO_PRIORITY 0x400c -#define SO_BSDCOMPAT 0x400e -#define SO_PASSCRED 0x4010 -#define SO_PEERCRED 0x4011 -#define SO_TIMESTAMP 0x4012 -#define SCM_TIMESTAMP SO_TIMESTAMP -#define SO_TIMESTAMPNS 0x4013 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 0x4016 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 0x4017 -#define SO_SECURITY_ENCRYPTION_NETWORK 0x4018 - -#define SO_BINDTODEVICE 0x4019 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 0x401a -#define SO_DETACH_FILTER 0x401b - -#define SO_ACCEPTCONN 0x401c - -#define SO_PEERSEC 0x401d -#define SO_PASSSEC 0x401e - -#define SO_MARK 0x401f - -/* O_NONBLOCK clashes with the bits used for socket types. Therefore we - * have to define SOCK_NONBLOCK to a different value here. - */ -#define SOCK_NONBLOCK 0x40000000 - -#endif /* _ASM_SOCKET_H */ diff --git a/include/asm-parisc/sockios.h b/include/asm-parisc/sockios.h deleted file mode 100644 index dabfbc7483f6..000000000000 --- a/include/asm-parisc/sockios.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __ARCH_PARISC_SOCKIOS__ -#define __ARCH_PARISC_SOCKIOS__ - -/* Socket-level I/O control calls. */ -#define FIOSETOWN 0x8901 -#define SIOCSPGRP 0x8902 -#define FIOGETOWN 0x8903 -#define SIOCGPGRP 0x8904 -#define SIOCATMARK 0x8905 -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ - -#endif diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h deleted file mode 100644 index f3d2090a18dc..000000000000 --- a/include/asm-parisc/spinlock.h +++ /dev/null @@ -1,194 +0,0 @@ -#ifndef __ASM_SPINLOCK_H -#define __ASM_SPINLOCK_H - -#include -#include -#include - -static inline int __raw_spin_is_locked(raw_spinlock_t *x) -{ - volatile unsigned int *a = __ldcw_align(x); - return *a == 0; -} - -#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0) -#define __raw_spin_unlock_wait(x) \ - do { cpu_relax(); } while (__raw_spin_is_locked(x)) - -static inline void __raw_spin_lock_flags(raw_spinlock_t *x, - unsigned long flags) -{ - volatile unsigned int *a; - - mb(); - a = __ldcw_align(x); - while (__ldcw(a) == 0) - while (*a == 0) - if (flags & PSW_SM_I) { - local_irq_enable(); - cpu_relax(); - local_irq_disable(); - } else - cpu_relax(); - mb(); -} - -static inline void __raw_spin_unlock(raw_spinlock_t *x) -{ - volatile unsigned int *a; - mb(); - a = __ldcw_align(x); - *a = 1; - mb(); -} - -static inline int __raw_spin_trylock(raw_spinlock_t *x) -{ - volatile unsigned int *a; - int ret; - - mb(); - a = __ldcw_align(x); - ret = __ldcw(a) != 0; - mb(); - - return ret; -} - -/* - * Read-write spinlocks, allowing multiple readers but only one writer. - * Linux rwlocks are unfair to writers; they can be starved for an indefinite - * time by readers. With care, they can also be taken in interrupt context. - * - * In the PA-RISC implementation, we have a spinlock and a counter. - * Readers use the lock to serialise their access to the counter (which - * records how many readers currently hold the lock). - * Writers hold the spinlock, preventing any readers or other writers from - * grabbing the rwlock. - */ - -/* Note that we have to ensure interrupts are disabled in case we're - * interrupted by some other code that wants to grab the same read lock */ -static __inline__ void __raw_read_lock(raw_rwlock_t *rw) -{ - unsigned long flags; - local_irq_save(flags); - __raw_spin_lock_flags(&rw->lock, flags); - rw->counter++; - __raw_spin_unlock(&rw->lock); - local_irq_restore(flags); -} - -/* Note that we have to ensure interrupts are disabled in case we're - * interrupted by some other code that wants to grab the same read lock */ -static __inline__ void __raw_read_unlock(raw_rwlock_t *rw) -{ - unsigned long flags; - local_irq_save(flags); - __raw_spin_lock_flags(&rw->lock, flags); - rw->counter--; - __raw_spin_unlock(&rw->lock); - local_irq_restore(flags); -} - -/* Note that we have to ensure interrupts are disabled in case we're - * interrupted by some other code that wants to grab the same read lock */ -static __inline__ int __raw_read_trylock(raw_rwlock_t *rw) -{ - unsigned long flags; - retry: - local_irq_save(flags); - if (__raw_spin_trylock(&rw->lock)) { - rw->counter++; - __raw_spin_unlock(&rw->lock); - local_irq_restore(flags); - return 1; - } - - local_irq_restore(flags); - /* If write-locked, we fail to acquire the lock */ - if (rw->counter < 0) - return 0; - - /* Wait until we have a realistic chance at the lock */ - while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0) - cpu_relax(); - - goto retry; -} - -/* Note that we have to ensure interrupts are disabled in case we're - * interrupted by some other code that wants to read_trylock() this lock */ -static __inline__ void __raw_write_lock(raw_rwlock_t *rw) -{ - unsigned long flags; -retry: - local_irq_save(flags); - __raw_spin_lock_flags(&rw->lock, flags); - - if (rw->counter != 0) { - __raw_spin_unlock(&rw->lock); - local_irq_restore(flags); - - while (rw->counter != 0) - cpu_relax(); - - goto retry; - } - - rw->counter = -1; /* mark as write-locked */ - mb(); - local_irq_restore(flags); -} - -static __inline__ void __raw_write_unlock(raw_rwlock_t *rw) -{ - rw->counter = 0; - __raw_spin_unlock(&rw->lock); -} - -/* Note that we have to ensure interrupts are disabled in case we're - * interrupted by some other code that wants to read_trylock() this lock */ -static __inline__ int __raw_write_trylock(raw_rwlock_t *rw) -{ - unsigned long flags; - int result = 0; - - local_irq_save(flags); - if (__raw_spin_trylock(&rw->lock)) { - if (rw->counter == 0) { - rw->counter = -1; - result = 1; - } else { - /* Read-locked. Oh well. */ - __raw_spin_unlock(&rw->lock); - } - } - local_irq_restore(flags); - - return result; -} - -/* - * read_can_lock - would read_trylock() succeed? - * @lock: the rwlock in question. - */ -static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw) -{ - return rw->counter >= 0; -} - -/* - * write_can_lock - would write_trylock() succeed? - * @lock: the rwlock in question. - */ -static __inline__ int __raw_write_can_lock(raw_rwlock_t *rw) -{ - return !rw->counter; -} - -#define _raw_spin_relax(lock) cpu_relax() -#define _raw_read_relax(lock) cpu_relax() -#define _raw_write_relax(lock) cpu_relax() - -#endif /* __ASM_SPINLOCK_H */ diff --git a/include/asm-parisc/spinlock_types.h b/include/asm-parisc/spinlock_types.h deleted file mode 100644 index 3f72f47cf4b2..000000000000 --- a/include/asm-parisc/spinlock_types.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef __ASM_SPINLOCK_TYPES_H -#define __ASM_SPINLOCK_TYPES_H - -typedef struct { -#ifdef CONFIG_PA20 - volatile unsigned int slock; -# define __RAW_SPIN_LOCK_UNLOCKED { 1 } -#else - volatile unsigned int lock[4]; -# define __RAW_SPIN_LOCK_UNLOCKED { { 1, 1, 1, 1 } } -#endif -} raw_spinlock_t; - -typedef struct { - raw_spinlock_t lock; - volatile int counter; -} raw_rwlock_t; - -#define __RAW_RW_LOCK_UNLOCKED { __RAW_SPIN_LOCK_UNLOCKED, 0 } - -#endif diff --git a/include/asm-parisc/stat.h b/include/asm-parisc/stat.h deleted file mode 100644 index 9d5fbbc5c31f..000000000000 --- a/include/asm-parisc/stat.h +++ /dev/null @@ -1,100 +0,0 @@ -#ifndef _PARISC_STAT_H -#define _PARISC_STAT_H - -#include - -struct stat { - unsigned int st_dev; /* dev_t is 32 bits on parisc */ - ino_t st_ino; /* 32 bits */ - mode_t st_mode; /* 16 bits */ - nlink_t st_nlink; /* 16 bits */ - unsigned short st_reserved1; /* old st_uid */ - unsigned short st_reserved2; /* old st_gid */ - unsigned int st_rdev; - off_t st_size; - time_t st_atime; - unsigned int st_atime_nsec; - time_t st_mtime; - unsigned int st_mtime_nsec; - time_t st_ctime; - unsigned int st_ctime_nsec; - int st_blksize; - int st_blocks; - unsigned int __unused1; /* ACL stuff */ - unsigned int __unused2; /* network */ - ino_t __unused3; /* network */ - unsigned int __unused4; /* cnodes */ - unsigned short __unused5; /* netsite */ - short st_fstype; - unsigned int st_realdev; - unsigned short st_basemode; - unsigned short st_spareshort; - uid_t st_uid; - gid_t st_gid; - unsigned int st_spare4[3]; -}; - -#define STAT_HAVE_NSEC - -typedef __kernel_off64_t off64_t; - -struct hpux_stat64 { - unsigned int st_dev; /* dev_t is 32 bits on parisc */ - ino_t st_ino; /* 32 bits */ - mode_t st_mode; /* 16 bits */ - nlink_t st_nlink; /* 16 bits */ - unsigned short st_reserved1; /* old st_uid */ - unsigned short st_reserved2; /* old st_gid */ - unsigned int st_rdev; - off64_t st_size; - time_t st_atime; - unsigned int st_spare1; - time_t st_mtime; - unsigned int st_spare2; - time_t st_ctime; - unsigned int st_spare3; - int st_blksize; - __u64 st_blocks; - unsigned int __unused1; /* ACL stuff */ - unsigned int __unused2; /* network */ - ino_t __unused3; /* network */ - unsigned int __unused4; /* cnodes */ - unsigned short __unused5; /* netsite */ - short st_fstype; - unsigned int st_realdev; - unsigned short st_basemode; - unsigned short st_spareshort; - uid_t st_uid; - gid_t st_gid; - unsigned int st_spare4[3]; -}; - -/* This is the struct that 32-bit userspace applications are expecting. - * How 64-bit apps are going to be compiled, I have no idea. But at least - * this way, we don't have a wrapper in the kernel. - */ -struct stat64 { - unsigned long long st_dev; - unsigned int __pad1; - - unsigned int __st_ino; /* Not actually filled in */ - unsigned int st_mode; - unsigned int st_nlink; - unsigned int st_uid; - unsigned int st_gid; - unsigned long long st_rdev; - unsigned int __pad2; - signed long long st_size; - signed int st_blksize; - - signed long long st_blocks; - signed int st_atime; - unsigned int st_atime_nsec; - signed int st_mtime; - unsigned int st_mtime_nsec; - signed int st_ctime; - unsigned int st_ctime_nsec; - unsigned long long st_ino; -}; - -#endif diff --git a/include/asm-parisc/statfs.h b/include/asm-parisc/statfs.h deleted file mode 100644 index 1d2b8130b23d..000000000000 --- a/include/asm-parisc/statfs.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _PARISC_STATFS_H -#define _PARISC_STATFS_H - -#ifndef __KERNEL_STRICT_NAMES - -#include - -typedef __kernel_fsid_t fsid_t; - -#endif - -/* - * It appears that PARISC could be 64 _or_ 32 bit. - * 64-bit fields must be explicitly 64-bit in statfs64. - */ -struct statfs { - long f_type; - long f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; - __kernel_fsid_t f_fsid; - long f_namelen; - long f_frsize; - long f_spare[5]; -}; - -struct statfs64 { - long f_type; - long f_bsize; - __u64 f_blocks; - __u64 f_bfree; - __u64 f_bavail; - __u64 f_files; - __u64 f_ffree; - __kernel_fsid_t f_fsid; - long f_namelen; - long f_frsize; - long f_spare[5]; -}; - -struct compat_statfs64 { - __u32 f_type; - __u32 f_bsize; - __u64 f_blocks; - __u64 f_bfree; - __u64 f_bavail; - __u64 f_files; - __u64 f_ffree; - __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_spare[5]; -}; - -#endif diff --git a/include/asm-parisc/string.h b/include/asm-parisc/string.h deleted file mode 100644 index eda01be65e35..000000000000 --- a/include/asm-parisc/string.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef _PA_STRING_H_ -#define _PA_STRING_H_ - -#define __HAVE_ARCH_MEMSET -extern void * memset(void *, int, size_t); - -#define __HAVE_ARCH_MEMCPY -void * memcpy(void * dest,const void *src,size_t count); - -#endif diff --git a/include/asm-parisc/superio.h b/include/asm-parisc/superio.h deleted file mode 100644 index 6598acb4d46d..000000000000 --- a/include/asm-parisc/superio.h +++ /dev/null @@ -1,85 +0,0 @@ -#ifndef _PARISC_SUPERIO_H -#define _PARISC_SUPERIO_H - -#define IC_PIC1 0x20 /* PCI I/O address of master 8259 */ -#define IC_PIC2 0xA0 /* PCI I/O address of slave */ - -/* Config Space Offsets to configuration and base address registers */ -#define SIO_CR 0x5A /* Configuration Register */ -#define SIO_ACPIBAR 0x88 /* ACPI BAR */ -#define SIO_FDCBAR 0x90 /* Floppy Disk Controller BAR */ -#define SIO_SP1BAR 0x94 /* Serial 1 BAR */ -#define SIO_SP2BAR 0x98 /* Serial 2 BAR */ -#define SIO_PPBAR 0x9C /* Parallel BAR */ - -#define TRIGGER_1 0x67 /* Edge/level trigger register 1 */ -#define TRIGGER_2 0x68 /* Edge/level trigger register 2 */ - -/* Interrupt Routing Control registers */ -#define CFG_IR_SER 0x69 /* Serial 1 [0:3] and Serial 2 [4:7] */ -#define CFG_IR_PFD 0x6a /* Parallel [0:3] and Floppy [4:7] */ -#define CFG_IR_IDE 0x6b /* IDE1 [0:3] and IDE2 [4:7] */ -#define CFG_IR_INTAB 0x6c /* PCI INTA [0:3] and INT B [4:7] */ -#define CFG_IR_INTCD 0x6d /* PCI INTC [0:3] and INT D [4:7] */ -#define CFG_IR_PS2 0x6e /* PS/2 KBINT [0:3] and Mouse [4:7] */ -#define CFG_IR_FXBUS 0x6f /* FXIRQ[0] [0:3] and FXIRQ[1] [4:7] */ -#define CFG_IR_USB 0x70 /* FXIRQ[2] [0:3] and USB [4:7] */ -#define CFG_IR_ACPI 0x71 /* ACPI SCI [0:3] and reserved [4:7] */ - -#define CFG_IR_LOW CFG_IR_SER /* Lowest interrupt routing reg */ -#define CFG_IR_HIGH CFG_IR_ACPI /* Highest interrupt routing reg */ - -/* 8259 operational control words */ -#define OCW2_EOI 0x20 /* Non-specific EOI */ -#define OCW2_SEOI 0x60 /* Specific EOI */ -#define OCW3_IIR 0x0A /* Read request register */ -#define OCW3_ISR 0x0B /* Read service register */ -#define OCW3_POLL 0x0C /* Poll the PIC for an interrupt vector */ - -/* Interrupt lines. Only PIC1 is used */ -#define USB_IRQ 1 /* USB */ -#define SP1_IRQ 3 /* Serial port 1 */ -#define SP2_IRQ 4 /* Serial port 2 */ -#define PAR_IRQ 5 /* Parallel port */ -#define FDC_IRQ 6 /* Floppy controller */ -#define IDE_IRQ 7 /* IDE (pri+sec) */ - -/* ACPI registers */ -#define USB_REG_CR 0x1f /* USB Regulator Control Register */ - -#define SUPERIO_NIRQS 8 - -struct superio_device { - u32 fdc_base; - u32 sp1_base; - u32 sp2_base; - u32 pp_base; - u32 acpi_base; - int suckyio_irq_enabled; - struct pci_dev *lio_pdev; /* pci device for legacy IO (fn 1) */ - struct pci_dev *usb_pdev; /* pci device for USB (fn 2) */ -}; - -/* - * Does NS make a 87415 based plug in PCI card? If so, because of this - * macro we currently don't support it being plugged into a machine - * that contains a SuperIO chip AND has CONFIG_SUPERIO enabled. - * - * This could be fixed by checking to see if function 1 exists, and - * if it is SuperIO Legacy IO; but really now, is this combination - * going to EVER happen? - */ - -#define SUPERIO_IDE_FN 0 /* Function number of IDE controller */ -#define SUPERIO_LIO_FN 1 /* Function number of Legacy IO controller */ -#define SUPERIO_USB_FN 2 /* Function number of USB controller */ - -#define is_superio_device(x) \ - (((x)->vendor == PCI_VENDOR_ID_NS) && \ - ( ((x)->device == PCI_DEVICE_ID_NS_87415) \ - || ((x)->device == PCI_DEVICE_ID_NS_87560_LIO) \ - || ((x)->device == PCI_DEVICE_ID_NS_87560_USB) ) ) - -extern int superio_fixup_irq(struct pci_dev *pcidev); /* called by iosapic */ - -#endif /* _PARISC_SUPERIO_H */ diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h deleted file mode 100644 index ee80c920b464..000000000000 --- a/include/asm-parisc/system.h +++ /dev/null @@ -1,182 +0,0 @@ -#ifndef __PARISC_SYSTEM_H -#define __PARISC_SYSTEM_H - -#include - -/* The program status word as bitfields. */ -struct pa_psw { - unsigned int y:1; - unsigned int z:1; - unsigned int rv:2; - unsigned int w:1; - unsigned int e:1; - unsigned int s:1; - unsigned int t:1; - - unsigned int h:1; - unsigned int l:1; - unsigned int n:1; - unsigned int x:1; - unsigned int b:1; - unsigned int c:1; - unsigned int v:1; - unsigned int m:1; - - unsigned int cb:8; - - unsigned int o:1; - unsigned int g:1; - unsigned int f:1; - unsigned int r:1; - unsigned int q:1; - unsigned int p:1; - unsigned int d:1; - unsigned int i:1; -}; - -#ifdef CONFIG_64BIT -#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW + 4)) -#else -#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW)) -#endif - -struct task_struct; - -extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *); - -#define switch_to(prev, next, last) do { \ - (last) = _switch_to(prev, next); \ -} while(0) - -/* interrupt control */ -#define local_save_flags(x) __asm__ __volatile__("ssm 0, %0" : "=r" (x) : : "memory") -#define local_irq_disable() __asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory" ) -#define local_irq_enable() __asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory" ) - -#define local_irq_save(x) \ - __asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" ) -#define local_irq_restore(x) \ - __asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" ) - -#define irqs_disabled() \ -({ \ - unsigned long flags; \ - local_save_flags(flags); \ - (flags & PSW_I) == 0; \ -}) - -#define mfctl(reg) ({ \ - unsigned long cr; \ - __asm__ __volatile__( \ - "mfctl " #reg ",%0" : \ - "=r" (cr) \ - ); \ - cr; \ -}) - -#define mtctl(gr, cr) \ - __asm__ __volatile__("mtctl %0,%1" \ - : /* no outputs */ \ - : "r" (gr), "i" (cr) : "memory") - -/* these are here to de-mystefy the calling code, and to provide hooks */ -/* which I needed for debugging EIEM problems -PB */ -#define get_eiem() mfctl(15) -static inline void set_eiem(unsigned long val) -{ - mtctl(val, 15); -} - -#define mfsp(reg) ({ \ - unsigned long cr; \ - __asm__ __volatile__( \ - "mfsp " #reg ",%0" : \ - "=r" (cr) \ - ); \ - cr; \ -}) - -#define mtsp(gr, cr) \ - __asm__ __volatile__("mtsp %0,%1" \ - : /* no outputs */ \ - : "r" (gr), "i" (cr) : "memory") - - -/* -** This is simply the barrier() macro from linux/kernel.h but when serial.c -** uses tqueue.h uses smp_mb() defined using barrier(), linux/kernel.h -** hasn't yet been included yet so it fails, thus repeating the macro here. -** -** PA-RISC architecture allows for weakly ordered memory accesses although -** none of the processors use it. There is a strong ordered bit that is -** set in the O-bit of the page directory entry. Operating systems that -** can not tolerate out of order accesses should set this bit when mapping -** pages. The O-bit of the PSW should also be set to 1 (I don't believe any -** of the processor implemented the PSW O-bit). The PCX-W ERS states that -** the TLB O-bit is not implemented so the page directory does not need to -** have the O-bit set when mapping pages (section 3.1). This section also -** states that the PSW Y, Z, G, and O bits are not implemented. -** So it looks like nothing needs to be done for parisc-linux (yet). -** (thanks to chada for the above comment -ggg) -** -** The __asm__ op below simple prevents gcc/ld from reordering -** instructions across the mb() "call". -*/ -#define mb() __asm__ __volatile__("":::"memory") /* barrier() */ -#define rmb() mb() -#define wmb() mb() -#define smp_mb() mb() -#define smp_rmb() mb() -#define smp_wmb() mb() -#define smp_read_barrier_depends() do { } while(0) -#define read_barrier_depends() do { } while(0) - -#define set_mb(var, value) do { var = value; mb(); } while (0) - -#ifndef CONFIG_PA20 -/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data, - and GCC only guarantees 8-byte alignment for stack locals, we can't - be assured of 16-byte alignment for atomic lock data even if we - specify "__attribute ((aligned(16)))" in the type declaration. So, - we use a struct containing an array of four ints for the atomic lock - type and dynamically select the 16-byte aligned int from the array - for the semaphore. */ - -#define __PA_LDCW_ALIGNMENT 16 -#define __ldcw_align(a) ({ \ - unsigned long __ret = (unsigned long) &(a)->lock[0]; \ - __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) \ - & ~(__PA_LDCW_ALIGNMENT - 1); \ - (volatile unsigned int *) __ret; \ -}) -#define __LDCW "ldcw" - -#else /*CONFIG_PA20*/ -/* From: "Jim Hull" - I've attached a summary of the change, but basically, for PA 2.0, as - long as the ",CO" (coherent operation) completer is specified, then the - 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead - they only require "natural" alignment (4-byte for ldcw, 8-byte for - ldcd). */ - -#define __PA_LDCW_ALIGNMENT 4 -#define __ldcw_align(a) ((volatile unsigned int *)a) -#define __LDCW "ldcw,co" - -#endif /*!CONFIG_PA20*/ - -/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*. */ -#define __ldcw(a) ({ \ - unsigned __ret; \ - __asm__ __volatile__(__LDCW " 0(%1),%0" \ - : "=r" (__ret) : "r" (a)); \ - __ret; \ -}) - -#ifdef CONFIG_SMP -# define __lock_aligned __attribute__((__section__(".data.lock_aligned"))) -#endif - -#define arch_align_stack(x) (x) - -#endif diff --git a/include/asm-parisc/termbits.h b/include/asm-parisc/termbits.h deleted file mode 100644 index d8bbc73b16b7..000000000000 --- a/include/asm-parisc/termbits.h +++ /dev/null @@ -1,200 +0,0 @@ -#ifndef __ARCH_PARISC_TERMBITS_H__ -#define __ARCH_PARISC_TERMBITS_H__ - -#include - -typedef unsigned char cc_t; -typedef unsigned int speed_t; -typedef unsigned int tcflag_t; - -#define NCCS 19 -struct termios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ -}; - -struct termios2 { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -struct ktermios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -/* c_cc characters */ -#define VINTR 0 -#define VQUIT 1 -#define VERASE 2 -#define VKILL 3 -#define VEOF 4 -#define VTIME 5 -#define VMIN 6 -#define VSWTC 7 -#define VSTART 8 -#define VSTOP 9 -#define VSUSP 10 -#define VEOL 11 -#define VREPRINT 12 -#define VDISCARD 13 -#define VWERASE 14 -#define VLNEXT 15 -#define VEOL2 16 - - -/* c_iflag bits */ -#define IGNBRK 0000001 -#define BRKINT 0000002 -#define IGNPAR 0000004 -#define PARMRK 0000010 -#define INPCK 0000020 -#define ISTRIP 0000040 -#define INLCR 0000100 -#define IGNCR 0000200 -#define ICRNL 0000400 -#define IUCLC 0001000 -#define IXON 0002000 -#define IXANY 0004000 -#define IXOFF 0010000 -#define IMAXBEL 0040000 -#define IUTF8 0100000 - -/* c_oflag bits */ -#define OPOST 0000001 -#define OLCUC 0000002 -#define ONLCR 0000004 -#define OCRNL 0000010 -#define ONOCR 0000020 -#define ONLRET 0000040 -#define OFILL 0000100 -#define OFDEL 0000200 -#define NLDLY 0000400 -#define NL0 0000000 -#define NL1 0000400 -#define CRDLY 0003000 -#define CR0 0000000 -#define CR1 0001000 -#define CR2 0002000 -#define CR3 0003000 -#define TABDLY 0014000 -#define TAB0 0000000 -#define TAB1 0004000 -#define TAB2 0010000 -#define TAB3 0014000 -#define XTABS 0014000 -#define BSDLY 0020000 -#define BS0 0000000 -#define BS1 0020000 -#define VTDLY 0040000 -#define VT0 0000000 -#define VT1 0040000 -#define FFDLY 0100000 -#define FF0 0000000 -#define FF1 0100000 - -/* c_cflag bit meaning */ -#define CBAUD 0010017 -#define B0 0000000 /* hang up */ -#define B50 0000001 -#define B75 0000002 -#define B110 0000003 -#define B134 0000004 -#define B150 0000005 -#define B200 0000006 -#define B300 0000007 -#define B600 0000010 -#define B1200 0000011 -#define B1800 0000012 -#define B2400 0000013 -#define B4800 0000014 -#define B9600 0000015 -#define B19200 0000016 -#define B38400 0000017 -#define EXTA B19200 -#define EXTB B38400 -#define CSIZE 0000060 -#define CS5 0000000 -#define CS6 0000020 -#define CS7 0000040 -#define CS8 0000060 -#define CSTOPB 0000100 -#define CREAD 0000200 -#define PARENB 0000400 -#define PARODD 0001000 -#define HUPCL 0002000 -#define CLOCAL 0004000 -#define CBAUDEX 0010000 -#define BOTHER 0010000 -#define B57600 0010001 -#define B115200 0010002 -#define B230400 0010003 -#define B460800 0010004 -#define B500000 0010005 -#define B576000 0010006 -#define B921600 0010007 -#define B1000000 0010010 -#define B1152000 0010011 -#define B1500000 0010012 -#define B2000000 0010013 -#define B2500000 0010014 -#define B3000000 0010015 -#define B3500000 0010016 -#define B4000000 0010017 -#define CIBAUD 002003600000 /* input baud rate */ -#define CMSPAR 010000000000 /* mark or space (stick) parity */ -#define CRTSCTS 020000000000 /* flow control */ - -#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ - - -/* c_lflag bits */ -#define ISIG 0000001 -#define ICANON 0000002 -#define XCASE 0000004 -#define ECHO 0000010 -#define ECHOE 0000020 -#define ECHOK 0000040 -#define ECHONL 0000100 -#define NOFLSH 0000200 -#define TOSTOP 0000400 -#define ECHOCTL 0001000 -#define ECHOPRT 0002000 -#define ECHOKE 0004000 -#define FLUSHO 0010000 -#define PENDIN 0040000 -#define IEXTEN 0100000 - -/* tcflow() and TCXONC use these */ -#define TCOOFF 0 -#define TCOON 1 -#define TCIOFF 2 -#define TCION 3 - -/* tcflush() and TCFLSH use these */ -#define TCIFLUSH 0 -#define TCOFLUSH 1 -#define TCIOFLUSH 2 - -/* tcsetattr uses these */ -#define TCSANOW 0 -#define TCSADRAIN 1 -#define TCSAFLUSH 2 - -#endif diff --git a/include/asm-parisc/termios.h b/include/asm-parisc/termios.h deleted file mode 100644 index a2a57a4548af..000000000000 --- a/include/asm-parisc/termios.h +++ /dev/null @@ -1,90 +0,0 @@ -#ifndef _PARISC_TERMIOS_H -#define _PARISC_TERMIOS_H - -#include -#include - -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; - -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ - -#ifdef __KERNEL__ - -/* intr=^C quit=^\ erase=del kill=^U - eof=^D vtime=\0 vmin=\1 sxtc=\0 - start=^Q stop=^S susp=^Z eol=\0 - reprint=^R discard=^U werase=^W lnext=^V - eol2=\0 -*/ -#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" - -/* - * Translate a "termio" structure into a "termios". Ugh. - */ -#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \ - unsigned short __tmp; \ - get_user(__tmp,&(termio)->x); \ - *(unsigned short *) &(termios)->x = __tmp; \ -} - -#define user_termio_to_kernel_termios(termios, termio) \ -({ \ - SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \ - copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ -}) - -/* - * Translate a "termios" structure into a "termio". Ugh. - */ -#define kernel_termios_to_user_termio(termio, termios) \ -({ \ - put_user((termios)->c_iflag, &(termio)->c_iflag); \ - put_user((termios)->c_oflag, &(termio)->c_oflag); \ - put_user((termios)->c_cflag, &(termio)->c_cflag); \ - put_user((termios)->c_lflag, &(termio)->c_lflag); \ - put_user((termios)->c_line, &(termio)->c_line); \ - copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ -}) - -#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2)) -#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2)) -#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) -#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) - -#endif /* __KERNEL__ */ - -#endif /* _PARISC_TERMIOS_H */ diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h deleted file mode 100644 index 9f812741c355..000000000000 --- a/include/asm-parisc/thread_info.h +++ /dev/null @@ -1,74 +0,0 @@ -#ifndef _ASM_PARISC_THREAD_INFO_H -#define _ASM_PARISC_THREAD_INFO_H - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ -#include - -struct thread_info { - struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain;/* execution domain */ - unsigned long flags; /* thread_info flags (see TIF_*) */ - mm_segment_t addr_limit; /* user-level address space limit */ - __u32 cpu; /* current CPU */ - int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ - struct restart_block restart_block; -}; - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ - .addr_limit = KERNEL_DS, \ - .preempt_count = 1, \ - .restart_block = { \ - .fn = do_no_restart_syscall \ - } \ -} - -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - -/* thread information allocation */ - -#define THREAD_SIZE_ORDER 2 -/* Be sure to hunt all references to this down when you change the size of - * the kernel stack */ -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) -#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) - -/* how to get the thread information struct from C */ -#define current_thread_info() ((struct thread_info *)mfctl(30)) - -#endif /* !__ASSEMBLY */ - -#define PREEMPT_ACTIVE_BIT 28 -#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT) - -/* - * thread information flags - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_32BIT 4 /* 32 bit binary */ -#define TIF_MEMDIE 5 -#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */ - -#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) -#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) -#define _TIF_32BIT (1 << TIF_32BIT) -#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) - -#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \ - _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PARISC_THREAD_INFO_H */ diff --git a/include/asm-parisc/timex.h b/include/asm-parisc/timex.h deleted file mode 100644 index 3b68d77273d9..000000000000 --- a/include/asm-parisc/timex.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * linux/include/asm-parisc/timex.h - * - * PARISC architecture timex specifications - */ -#ifndef _ASMPARISC_TIMEX_H -#define _ASMPARISC_TIMEX_H - -#include - -#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ - -typedef unsigned long cycles_t; - -static inline cycles_t get_cycles (void) -{ - return mfctl(16); -} - -#endif diff --git a/include/asm-parisc/tlb.h b/include/asm-parisc/tlb.h deleted file mode 100644 index 383b1db310ee..000000000000 --- a/include/asm-parisc/tlb.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef _PARISC_TLB_H -#define _PARISC_TLB_H - -#define tlb_flush(tlb) \ -do { if ((tlb)->fullmm) \ - flush_tlb_mm((tlb)->mm);\ -} while (0) - -#define tlb_start_vma(tlb, vma) \ -do { if (!(tlb)->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define tlb_end_vma(tlb, vma) \ -do { if (!(tlb)->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define __tlb_remove_tlb_entry(tlb, pte, address) \ - do { } while (0) - -#include - -#define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd) -#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, pte) - -#endif diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h deleted file mode 100644 index b72ec66db699..000000000000 --- a/include/asm-parisc/tlbflush.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef _PARISC_TLBFLUSH_H -#define _PARISC_TLBFLUSH_H - -/* TLB flushing routines.... */ - -#include -#include -#include - - -/* This is for the serialisation of PxTLB broadcasts. At least on the - * N class systems, only one PxTLB inter processor broadcast can be - * active at any one time on the Merced bus. This tlb purge - * synchronisation is fairly lightweight and harmless so we activate - * it on all SMP systems not just the N class. We also need to have - * preemption disabled on uniprocessor machines, and spin_lock does that - * nicely. - */ -extern spinlock_t pa_tlb_lock; - -#define purge_tlb_start(x) spin_lock(&pa_tlb_lock) -#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock) - -extern void flush_tlb_all(void); -extern void flush_tlb_all_local(void *); - -/* - * flush_tlb_mm() - * - * XXX This code is NOT valid for HP-UX compatibility processes, - * (although it will probably work 99% of the time). HP-UX - * processes are free to play with the space id's and save them - * over long periods of time, etc. so we have to preserve the - * space and just flush the entire tlb. We need to check the - * personality in order to do that, but the personality is not - * currently being set correctly. - * - * Of course, Linux processes could do the same thing, but - * we don't support that (and the compilers, dynamic linker, - * etc. do not do that). - */ - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - BUG_ON(mm == &init_mm); /* Should never happen */ - -#ifdef CONFIG_SMP - flush_tlb_all(); -#else - if (mm) { - if (mm->context != 0) - free_sid(mm->context); - mm->context = alloc_sid(); - if (mm == current->active_mm) - load_context(mm->context); - } -#endif -} - -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long addr) -{ - /* For one page, it's not worth testing the split_tlb variable */ - - mb(); - mtsp(vma->vm_mm->context,1); - purge_tlb_start(); - pdtlb(addr); - pitlb(addr); - purge_tlb_end(); -} - -void __flush_tlb_range(unsigned long sid, - unsigned long start, unsigned long end); - -#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end) - -#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end) - -#endif diff --git a/include/asm-parisc/topology.h b/include/asm-parisc/topology.h deleted file mode 100644 index d8133eb0b1e7..000000000000 --- a/include/asm-parisc/topology.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_PARISC_TOPOLOGY_H -#define _ASM_PARISC_TOPOLOGY_H - -#include - -#endif /* _ASM_PARISC_TOPOLOGY_H */ diff --git a/include/asm-parisc/traps.h b/include/asm-parisc/traps.h deleted file mode 100644 index 1945f995f2df..000000000000 --- a/include/asm-parisc/traps.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef __ASM_TRAPS_H -#define __ASM_TRAPS_H - -#ifdef __KERNEL__ -struct pt_regs; - -/* traps.c */ -void parisc_terminate(char *msg, struct pt_regs *regs, - int code, unsigned long offset); - -/* mm/fault.c */ -void do_page_fault(struct pt_regs *regs, unsigned long code, - unsigned long address); -#endif - -#endif diff --git a/include/asm-parisc/types.h b/include/asm-parisc/types.h deleted file mode 100644 index 7f5a39bfb4ce..000000000000 --- a/include/asm-parisc/types.h +++ /dev/null @@ -1,36 +0,0 @@ -#ifndef _PARISC_TYPES_H -#define _PARISC_TYPES_H - -#include - -#ifndef __ASSEMBLY__ - -typedef unsigned short umode_t; - -#endif /* __ASSEMBLY__ */ - -/* - * These aren't exported outside the kernel to avoid name space clashes - */ -#ifdef __KERNEL__ - -#ifdef CONFIG_64BIT -#define BITS_PER_LONG 64 -#define SHIFT_PER_LONG 6 -#else -#define BITS_PER_LONG 32 -#define SHIFT_PER_LONG 5 -#endif - -#ifndef __ASSEMBLY__ - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif diff --git a/include/asm-parisc/uaccess.h b/include/asm-parisc/uaccess.h deleted file mode 100644 index 4878b9501f24..000000000000 --- a/include/asm-parisc/uaccess.h +++ /dev/null @@ -1,244 +0,0 @@ -#ifndef __PARISC_UACCESS_H -#define __PARISC_UACCESS_H - -/* - * User space memory access functions - */ -#include -#include -#include -#include - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -#define KERNEL_DS ((mm_segment_t){0}) -#define USER_DS ((mm_segment_t){1}) - -#define segment_eq(a,b) ((a).seg == (b).seg) - -#define get_ds() (KERNEL_DS) -#define get_fs() (current_thread_info()->addr_limit) -#define set_fs(x) (current_thread_info()->addr_limit = (x)) - -/* - * Note that since kernel addresses are in a separate address space on - * parisc, we don't need to do anything for access_ok(). - * We just let the page fault handler do the right thing. This also means - * that put_user is the same as __put_user, etc. - */ - -extern int __get_kernel_bad(void); -extern int __get_user_bad(void); -extern int __put_kernel_bad(void); -extern int __put_user_bad(void); - -static inline long access_ok(int type, const void __user * addr, - unsigned long size) -{ - return 1; -} - -#define put_user __put_user -#define get_user __get_user - -#if !defined(CONFIG_64BIT) -#define LDD_KERNEL(ptr) __get_kernel_bad(); -#define LDD_USER(ptr) __get_user_bad(); -#define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr) -#define STD_USER(x, ptr) __put_user_asm64(x,ptr) -#define ASM_WORD_INSN ".word\t" -#else -#define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr) -#define LDD_USER(ptr) __get_user_asm("ldd",ptr) -#define STD_KERNEL(x, ptr) __put_kernel_asm("std",x,ptr) -#define STD_USER(x, ptr) __put_user_asm("std",x,ptr) -#define ASM_WORD_INSN ".dword\t" -#endif - -/* - * The exception table contains two values: the first is an address - * for an instruction that is allowed to fault, and the second is - * the address to the fixup routine. - */ - -struct exception_table_entry { - unsigned long insn; /* address of insn that is allowed to fault. */ - long fixup; /* fixup routine */ -}; - -#define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\ - ".section __ex_table,\"aw\"\n" \ - ASM_WORD_INSN #fault_addr ", " #except_addr "\n\t" \ - ".previous\n" - -/* - * The page fault handler stores, in a per-cpu area, the following information - * if a fixup routine is available. - */ -struct exception_data { - unsigned long fault_ip; - unsigned long fault_space; - unsigned long fault_addr; -}; - -#define __get_user(x,ptr) \ -({ \ - register long __gu_err __asm__ ("r8") = 0; \ - register long __gu_val __asm__ ("r9") = 0; \ - \ - if (segment_eq(get_fs(),KERNEL_DS)) { \ - switch (sizeof(*(ptr))) { \ - case 1: __get_kernel_asm("ldb",ptr); break; \ - case 2: __get_kernel_asm("ldh",ptr); break; \ - case 4: __get_kernel_asm("ldw",ptr); break; \ - case 8: LDD_KERNEL(ptr); break; \ - default: __get_kernel_bad(); break; \ - } \ - } \ - else { \ - switch (sizeof(*(ptr))) { \ - case 1: __get_user_asm("ldb",ptr); break; \ - case 2: __get_user_asm("ldh",ptr); break; \ - case 4: __get_user_asm("ldw",ptr); break; \ - case 8: LDD_USER(ptr); break; \ - default: __get_user_bad(); break; \ - } \ - } \ - \ - (x) = (__typeof__(*(ptr))) __gu_val; \ - __gu_err; \ -}) - -#define __get_kernel_asm(ldx,ptr) \ - __asm__("\n1:\t" ldx "\t0(%2),%0\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\ - : "=r"(__gu_val), "=r"(__gu_err) \ - : "r"(ptr), "1"(__gu_err) \ - : "r1"); - -#define __get_user_asm(ldx,ptr) \ - __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_get_user_skip_1)\ - : "=r"(__gu_val), "=r"(__gu_err) \ - : "r"(ptr), "1"(__gu_err) \ - : "r1"); - -#define __put_user(x,ptr) \ -({ \ - register long __pu_err __asm__ ("r8") = 0; \ - __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x); \ - \ - if (segment_eq(get_fs(),KERNEL_DS)) { \ - switch (sizeof(*(ptr))) { \ - case 1: __put_kernel_asm("stb",__x,ptr); break; \ - case 2: __put_kernel_asm("sth",__x,ptr); break; \ - case 4: __put_kernel_asm("stw",__x,ptr); break; \ - case 8: STD_KERNEL(__x,ptr); break; \ - default: __put_kernel_bad(); break; \ - } \ - } \ - else { \ - switch (sizeof(*(ptr))) { \ - case 1: __put_user_asm("stb",__x,ptr); break; \ - case 2: __put_user_asm("sth",__x,ptr); break; \ - case 4: __put_user_asm("stw",__x,ptr); break; \ - case 8: STD_USER(__x,ptr); break; \ - default: __put_user_bad(); break; \ - } \ - } \ - \ - __pu_err; \ -}) - -/* - * The "__put_user/kernel_asm()" macros tell gcc they read from memory - * instead of writing. This is because they do not write to any memory - * gcc knows about, so there are no aliasing issues. These macros must - * also be aware that "fixup_put_user_skip_[12]" are executed in the - * context of the fault, and any registers used there must be listed - * as clobbers. In this case only "r1" is used by the current routines. - * r8/r9 are already listed as err/val. - */ - -#define __put_kernel_asm(stx,x,ptr) \ - __asm__ __volatile__ ( \ - "\n1:\t" stx "\t%2,0(%1)\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\ - : "=r"(__pu_err) \ - : "r"(ptr), "r"(x), "0"(__pu_err) \ - : "r1") - -#define __put_user_asm(stx,x,ptr) \ - __asm__ __volatile__ ( \ - "\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\ - : "=r"(__pu_err) \ - : "r"(ptr), "r"(x), "0"(__pu_err) \ - : "r1") - - -#if !defined(CONFIG_64BIT) - -#define __put_kernel_asm64(__val,ptr) do { \ - u64 __val64 = (u64)(__val); \ - u32 hi = (__val64) >> 32; \ - u32 lo = (__val64) & 0xffffffff; \ - __asm__ __volatile__ ( \ - "\n1:\tstw %2,0(%1)" \ - "\n2:\tstw %3,4(%1)\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ - ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ - : "=r"(__pu_err) \ - : "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \ - : "r1"); \ -} while (0) - -#define __put_user_asm64(__val,ptr) do { \ - u64 __val64 = (u64)(__val); \ - u32 hi = (__val64) >> 32; \ - u32 lo = (__val64) & 0xffffffff; \ - __asm__ __volatile__ ( \ - "\n1:\tstw %2,0(%%sr3,%1)" \ - "\n2:\tstw %3,4(%%sr3,%1)\n\t" \ - ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ - ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ - : "=r"(__pu_err) \ - : "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \ - : "r1"); \ -} while (0) - -#endif /* !defined(CONFIG_64BIT) */ - - -/* - * Complex access routines -- external declarations - */ - -extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long); -extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long); -extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long); -extern long lstrncpy_from_user(char *, const char __user *, long); -extern unsigned lclear_user(void __user *,unsigned long); -extern long lstrnlen_user(const char __user *,long); - -/* - * Complex access routines -- macros - */ - -#define strncpy_from_user lstrncpy_from_user -#define strnlen_user lstrnlen_user -#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL) -#define clear_user lclear_user -#define __clear_user lclear_user - -unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len); -#define __copy_to_user copy_to_user -unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len); -#define __copy_from_user copy_from_user -unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len); -#define __copy_in_user copy_in_user -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -#endif /* __PARISC_UACCESS_H */ diff --git a/include/asm-parisc/ucontext.h b/include/asm-parisc/ucontext.h deleted file mode 100644 index 6c8883e4b0bd..000000000000 --- a/include/asm-parisc/ucontext.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _ASM_PARISC_UCONTEXT_H -#define _ASM_PARISC_UCONTEXT_H - -struct ucontext { - unsigned int uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - struct sigcontext uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -#endif /* !_ASM_PARISC_UCONTEXT_H */ diff --git a/include/asm-parisc/unaligned.h b/include/asm-parisc/unaligned.h deleted file mode 100644 index dfc5d3321a54..000000000000 --- a/include/asm-parisc/unaligned.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef _ASM_PARISC_UNALIGNED_H -#define _ASM_PARISC_UNALIGNED_H - -#include -#include -#include -#define get_unaligned __get_unaligned_be -#define put_unaligned __put_unaligned_be - -#ifdef __KERNEL__ -struct pt_regs; -void handle_unaligned(struct pt_regs *regs); -int check_unaligned(struct pt_regs *regs); -#endif - -#endif /* _ASM_PARISC_UNALIGNED_H */ diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h deleted file mode 100644 index a7d857f0e4f4..000000000000 --- a/include/asm-parisc/unistd.h +++ /dev/null @@ -1,991 +0,0 @@ -#ifndef _ASM_PARISC_UNISTD_H_ -#define _ASM_PARISC_UNISTD_H_ - -/* - * This file contains the system call numbers. - */ - -/* - * HP-UX system calls get their native numbers for binary compatibility. - */ - -#define __NR_HPUX_exit 1 -#define __NR_HPUX_fork 2 -#define __NR_HPUX_read 3 -#define __NR_HPUX_write 4 -#define __NR_HPUX_open 5 -#define __NR_HPUX_close 6 -#define __NR_HPUX_wait 7 -#define __NR_HPUX_creat 8 -#define __NR_HPUX_link 9 -#define __NR_HPUX_unlink 10 -#define __NR_HPUX_execv 11 -#define __NR_HPUX_chdir 12 -#define __NR_HPUX_time 13 -#define __NR_HPUX_mknod 14 -#define __NR_HPUX_chmod 15 -#define __NR_HPUX_chown 16 -#define __NR_HPUX_break 17 -#define __NR_HPUX_lchmod 18 -#define __NR_HPUX_lseek 19 -#define __NR_HPUX_getpid 20 -#define __NR_HPUX_mount 21 -#define __NR_HPUX_umount 22 -#define __NR_HPUX_setuid 23 -#define __NR_HPUX_getuid 24 -#define __NR_HPUX_stime 25 -#define __NR_HPUX_ptrace 26 -#define __NR_HPUX_alarm 27 -#define __NR_HPUX_oldfstat 28 -#define __NR_HPUX_pause 29 -#define __NR_HPUX_utime 30 -#define __NR_HPUX_stty 31 -#define __NR_HPUX_gtty 32 -#define __NR_HPUX_access 33 -#define __NR_HPUX_nice 34 -#define __NR_HPUX_ftime 35 -#define __NR_HPUX_sync 36 -#define __NR_HPUX_kill 37 -#define __NR_HPUX_stat 38 -#define __NR_HPUX_setpgrp3 39 -#define __NR_HPUX_lstat 40 -#define __NR_HPUX_dup 41 -#define __NR_HPUX_pipe 42 -#define __NR_HPUX_times 43 -#define __NR_HPUX_profil 44 -#define __NR_HPUX_ki_call 45 -#define __NR_HPUX_setgid 46 -#define __NR_HPUX_getgid 47 -#define __NR_HPUX_sigsys 48 -#define __NR_HPUX_reserved1 49 -#define __NR_HPUX_reserved2 50 -#define __NR_HPUX_acct 51 -#define __NR_HPUX_set_userthreadid 52 -#define __NR_HPUX_oldlock 53 -#define __NR_HPUX_ioctl 54 -#define __NR_HPUX_reboot 55 -#define __NR_HPUX_symlink 56 -#define __NR_HPUX_utssys 57 -#define __NR_HPUX_readlink 58 -#define __NR_HPUX_execve 59 -#define __NR_HPUX_umask 60 -#define __NR_HPUX_chroot 61 -#define __NR_HPUX_fcntl 62 -#define __NR_HPUX_ulimit 63 -#define __NR_HPUX_getpagesize 64 -#define __NR_HPUX_mremap 65 -#define __NR_HPUX_vfork 66 -#define __NR_HPUX_vread 67 -#define __NR_HPUX_vwrite 68 -#define __NR_HPUX_sbrk 69 -#define __NR_HPUX_sstk 70 -#define __NR_HPUX_mmap 71 -#define __NR_HPUX_vadvise 72 -#define __NR_HPUX_munmap 73 -#define __NR_HPUX_mprotect 74 -#define __NR_HPUX_madvise 75 -#define __NR_HPUX_vhangup 76 -#define __NR_HPUX_swapoff 77 -#define __NR_HPUX_mincore 78 -#define __NR_HPUX_getgroups 79 -#define __NR_HPUX_setgroups 80 -#define __NR_HPUX_getpgrp2 81 -#define __NR_HPUX_setpgrp2 82 -#define __NR_HPUX_setitimer 83 -#define __NR_HPUX_wait3 84 -#define __NR_HPUX_swapon 85 -#define __NR_HPUX_getitimer 86 -#define __NR_HPUX_gethostname42 87 -#define __NR_HPUX_sethostname42 88 -#define __NR_HPUX_getdtablesize 89 -#define __NR_HPUX_dup2 90 -#define __NR_HPUX_getdopt 91 -#define __NR_HPUX_fstat 92 -#define __NR_HPUX_select 93 -#define __NR_HPUX_setdopt 94 -#define __NR_HPUX_fsync 95 -#define __NR_HPUX_setpriority 96 -#define __NR_HPUX_socket_old 97 -#define __NR_HPUX_connect_old 98 -#define __NR_HPUX_accept_old 99 -#define __NR_HPUX_getpriority 100 -#define __NR_HPUX_send_old 101 -#define __NR_HPUX_recv_old 102 -#define __NR_HPUX_socketaddr_old 103 -#define __NR_HPUX_bind_old 104 -#define __NR_HPUX_setsockopt_old 105 -#define __NR_HPUX_listen_old 106 -#define __NR_HPUX_vtimes_old 107 -#define __NR_HPUX_sigvector 108 -#define __NR_HPUX_sigblock 109 -#define __NR_HPUX_siggetmask 110 -#define __NR_HPUX_sigpause 111 -#define __NR_HPUX_sigstack 112 -#define __NR_HPUX_recvmsg_old 113 -#define __NR_HPUX_sendmsg_old 114 -#define __NR_HPUX_vtrace_old 115 -#define __NR_HPUX_gettimeofday 116 -#define __NR_HPUX_getrusage 117 -#define __NR_HPUX_getsockopt_old 118 -#define __NR_HPUX_resuba_old 119 -#define __NR_HPUX_readv 120 -#define __NR_HPUX_writev 121 -#define __NR_HPUX_settimeofday 122 -#define __NR_HPUX_fchown 123 -#define __NR_HPUX_fchmod 124 -#define __NR_HPUX_recvfrom_old 125 -#define __NR_HPUX_setresuid 126 -#define __NR_HPUX_setresgid 127 -#define __NR_HPUX_rename 128 -#define __NR_HPUX_truncate 129 -#define __NR_HPUX_ftruncate 130 -#define __NR_HPUX_flock_old 131 -#define __NR_HPUX_sysconf 132 -#define __NR_HPUX_sendto_old 133 -#define __NR_HPUX_shutdown_old 134 -#define __NR_HPUX_socketpair_old 135 -#define __NR_HPUX_mkdir 136 -#define __NR_HPUX_rmdir 137 -#define __NR_HPUX_utimes_old 138 -#define __NR_HPUX_sigcleanup_old 139 -#define __NR_HPUX_setcore 140 -#define __NR_HPUX_getpeername_old 141 -#define __NR_HPUX_gethostid 142 -#define __NR_HPUX_sethostid 143 -#define __NR_HPUX_getrlimit 144 -#define __NR_HPUX_setrlimit 145 -#define __NR_HPUX_killpg_old 146 -#define __NR_HPUX_cachectl 147 -#define __NR_HPUX_quotactl 148 -#define __NR_HPUX_get_sysinfo 149 -#define __NR_HPUX_getsockname_old 150 -#define __NR_HPUX_privgrp 151 -#define __NR_HPUX_rtprio 152 -#define __NR_HPUX_plock 153 -#define __NR_HPUX_reserved3 154 -#define __NR_HPUX_lockf 155 -#define __NR_HPUX_semget 156 -#define __NR_HPUX_osemctl 157 -#define __NR_HPUX_semop 158 -#define __NR_HPUX_msgget 159 -#define __NR_HPUX_omsgctl 160 -#define __NR_HPUX_msgsnd 161 -#define __NR_HPUX_msgrecv 162 -#define __NR_HPUX_shmget 163 -#define __NR_HPUX_oshmctl 164 -#define __NR_HPUX_shmat 165 -#define __NR_HPUX_shmdt 166 -#define __NR_HPUX_m68020_advise 167 -/* [168,189] are for Discless/DUX */ -#define __NR_HPUX_csp 168 -#define __NR_HPUX_cluster 169 -#define __NR_HPUX_mkrnod 170 -#define __NR_HPUX_test 171 -#define __NR_HPUX_unsp_open 172 -#define __NR_HPUX_reserved4 173 -#define __NR_HPUX_getcontext_old 174 -#define __NR_HPUX_osetcontext 175 -#define __NR_HPUX_bigio 176 -#define __NR_HPUX_pipenode 177 -#define __NR_HPUX_lsync 178 -#define __NR_HPUX_getmachineid 179 -#define __NR_HPUX_cnodeid 180 -#define __NR_HPUX_cnodes 181 -#define __NR_HPUX_swapclients 182 -#define __NR_HPUX_rmt_process 183 -#define __NR_HPUX_dskless_stats 184 -#define __NR_HPUX_sigprocmask 185 -#define __NR_HPUX_sigpending 186 -#define __NR_HPUX_sigsuspend 187 -#define __NR_HPUX_sigaction 188 -#define __NR_HPUX_reserved5 189 -#define __NR_HPUX_nfssvc 190 -#define __NR_HPUX_getfh 191 -#define __NR_HPUX_getdomainname 192 -#define __NR_HPUX_setdomainname 193 -#define __NR_HPUX_async_daemon 194 -#define __NR_HPUX_getdirentries 195 -#define __NR_HPUX_statfs 196 -#define __NR_HPUX_fstatfs 197 -#define __NR_HPUX_vfsmount 198 -#define __NR_HPUX_reserved6 199 -#define __NR_HPUX_waitpid 200 -/* 201 - 223 missing */ -#define __NR_HPUX_sigsetreturn 224 -#define __NR_HPUX_sigsetstatemask 225 -/* 226 missing */ -#define __NR_HPUX_cs 227 -#define __NR_HPUX_cds 228 -#define __NR_HPUX_set_no_trunc 229 -#define __NR_HPUX_pathconf 230 -#define __NR_HPUX_fpathconf 231 -/* 232, 233 missing */ -#define __NR_HPUX_nfs_fcntl 234 -#define __NR_HPUX_ogetacl 235 -#define __NR_HPUX_ofgetacl 236 -#define __NR_HPUX_osetacl 237 -#define __NR_HPUX_ofsetacl 238 -#define __NR_HPUX_pstat 239 -#define __NR_HPUX_getaudid 240 -#define __NR_HPUX_setaudid 241 -#define __NR_HPUX_getaudproc 242 -#define __NR_HPUX_setaudproc 243 -#define __NR_HPUX_getevent 244 -#define __NR_HPUX_setevent 245 -#define __NR_HPUX_audwrite 246 -#define __NR_HPUX_audswitch 247 -#define __NR_HPUX_audctl 248 -#define __NR_HPUX_ogetaccess 249 -#define __NR_HPUX_fsctl 250 -/* 251 - 258 missing */ -#define __NR_HPUX_swapfs 259 -#define __NR_HPUX_fss 260 -/* 261 - 266 missing */ -#define __NR_HPUX_tsync 267 -#define __NR_HPUX_getnumfds 268 -#define __NR_HPUX_poll 269 -#define __NR_HPUX_getmsg 270 -#define __NR_HPUX_putmsg 271 -#define __NR_HPUX_fchdir 272 -#define __NR_HPUX_getmount_cnt 273 -#define __NR_HPUX_getmount_entry 274 -#define __NR_HPUX_accept 275 -#define __NR_HPUX_bind 276 -#define __NR_HPUX_connect 277 -#define __NR_HPUX_getpeername 278 -#define __NR_HPUX_getsockname 279 -#define __NR_HPUX_getsockopt 280 -#define __NR_HPUX_listen 281 -#define __NR_HPUX_recv 282 -#define __NR_HPUX_recvfrom 283 -#define __NR_HPUX_recvmsg 284 -#define __NR_HPUX_send 285 -#define __NR_HPUX_sendmsg 286 -#define __NR_HPUX_sendto 287 -#define __NR_HPUX_setsockopt 288 -#define __NR_HPUX_shutdown 289 -#define __NR_HPUX_socket 290 -#define __NR_HPUX_socketpair 291 -#define __NR_HPUX_proc_open 292 -#define __NR_HPUX_proc_close 293 -#define __NR_HPUX_proc_send 294 -#define __NR_HPUX_proc_recv 295 -#define __NR_HPUX_proc_sendrecv 296 -#define __NR_HPUX_proc_syscall 297 -/* 298 - 311 missing */ -#define __NR_HPUX_semctl 312 -#define __NR_HPUX_msgctl 313 -#define __NR_HPUX_shmctl 314 -#define __NR_HPUX_mpctl 315 -#define __NR_HPUX_exportfs 316 -#define __NR_HPUX_getpmsg 317 -#define __NR_HPUX_putpmsg 318 -/* 319 missing */ -#define __NR_HPUX_msync 320 -#define __NR_HPUX_msleep 321 -#define __NR_HPUX_mwakeup 322 -#define __NR_HPUX_msem_init 323 -#define __NR_HPUX_msem_remove 324 -#define __NR_HPUX_adjtime 325 -#define __NR_HPUX_kload 326 -#define __NR_HPUX_fattach 327 -#define __NR_HPUX_fdetach 328 -#define __NR_HPUX_serialize 329 -#define __NR_HPUX_statvfs 330 -#define __NR_HPUX_fstatvfs 331 -#define __NR_HPUX_lchown 332 -#define __NR_HPUX_getsid 333 -#define __NR_HPUX_sysfs 334 -/* 335, 336 missing */ -#define __NR_HPUX_sched_setparam 337 -#define __NR_HPUX_sched_getparam 338 -#define __NR_HPUX_sched_setscheduler 339 -#define __NR_HPUX_sched_getscheduler 340 -#define __NR_HPUX_sched_yield 341 -#define __NR_HPUX_sched_get_priority_max 342 -#define __NR_HPUX_sched_get_priority_min 343 -#define __NR_HPUX_sched_rr_get_interval 344 -#define __NR_HPUX_clock_settime 345 -#define __NR_HPUX_clock_gettime 346 -#define __NR_HPUX_clock_getres 347 -#define __NR_HPUX_timer_create 348 -#define __NR_HPUX_timer_delete 349 -#define __NR_HPUX_timer_settime 350 -#define __NR_HPUX_timer_gettime 351 -#define __NR_HPUX_timer_getoverrun 352 -#define __NR_HPUX_nanosleep 353 -#define __NR_HPUX_toolbox 354 -/* 355 missing */ -#define __NR_HPUX_getdents 356 -#define __NR_HPUX_getcontext 357 -#define __NR_HPUX_sysinfo 358 -#define __NR_HPUX_fcntl64 359 -#define __NR_HPUX_ftruncate64 360 -#define __NR_HPUX_fstat64 361 -#define __NR_HPUX_getdirentries64 362 -#define __NR_HPUX_getrlimit64 363 -#define __NR_HPUX_lockf64 364 -#define __NR_HPUX_lseek64 365 -#define __NR_HPUX_lstat64 366 -#define __NR_HPUX_mmap64 367 -#define __NR_HPUX_setrlimit64 368 -#define __NR_HPUX_stat64 369 -#define __NR_HPUX_truncate64 370 -#define __NR_HPUX_ulimit64 371 -#define __NR_HPUX_pread 372 -#define __NR_HPUX_preadv 373 -#define __NR_HPUX_pwrite 374 -#define __NR_HPUX_pwritev 375 -#define __NR_HPUX_pread64 376 -#define __NR_HPUX_preadv64 377 -#define __NR_HPUX_pwrite64 378 -#define __NR_HPUX_pwritev64 379 -#define __NR_HPUX_setcontext 380 -#define __NR_HPUX_sigaltstack 381 -#define __NR_HPUX_waitid 382 -#define __NR_HPUX_setpgrp 383 -#define __NR_HPUX_recvmsg2 384 -#define __NR_HPUX_sendmsg2 385 -#define __NR_HPUX_socket2 386 -#define __NR_HPUX_socketpair2 387 -#define __NR_HPUX_setregid 388 -#define __NR_HPUX_lwp_create 389 -#define __NR_HPUX_lwp_terminate 390 -#define __NR_HPUX_lwp_wait 391 -#define __NR_HPUX_lwp_suspend 392 -#define __NR_HPUX_lwp_resume 393 -/* 394 missing */ -#define __NR_HPUX_lwp_abort_syscall 395 -#define __NR_HPUX_lwp_info 396 -#define __NR_HPUX_lwp_kill 397 -#define __NR_HPUX_ksleep 398 -#define __NR_HPUX_kwakeup 399 -/* 400 missing */ -#define __NR_HPUX_pstat_getlwp 401 -#define __NR_HPUX_lwp_exit 402 -#define __NR_HPUX_lwp_continue 403 -#define __NR_HPUX_getacl 404 -#define __NR_HPUX_fgetacl 405 -#define __NR_HPUX_setacl 406 -#define __NR_HPUX_fsetacl 407 -#define __NR_HPUX_getaccess 408 -#define __NR_HPUX_lwp_mutex_init 409 -#define __NR_HPUX_lwp_mutex_lock_sys 410 -#define __NR_HPUX_lwp_mutex_unlock 411 -#define __NR_HPUX_lwp_cond_init 412 -#define __NR_HPUX_lwp_cond_signal 413 -#define __NR_HPUX_lwp_cond_broadcast 414 -#define __NR_HPUX_lwp_cond_wait_sys 415 -#define __NR_HPUX_lwp_getscheduler 416 -#define __NR_HPUX_lwp_setscheduler 417 -#define __NR_HPUX_lwp_getstate 418 -#define __NR_HPUX_lwp_setstate 419 -#define __NR_HPUX_lwp_detach 420 -#define __NR_HPUX_mlock 421 -#define __NR_HPUX_munlock 422 -#define __NR_HPUX_mlockall 423 -#define __NR_HPUX_munlockall 424 -#define __NR_HPUX_shm_open 425 -#define __NR_HPUX_shm_unlink 426 -#define __NR_HPUX_sigqueue 427 -#define __NR_HPUX_sigwaitinfo 428 -#define __NR_HPUX_sigtimedwait 429 -#define __NR_HPUX_sigwait 430 -#define __NR_HPUX_aio_read 431 -#define __NR_HPUX_aio_write 432 -#define __NR_HPUX_lio_listio 433 -#define __NR_HPUX_aio_error 434 -#define __NR_HPUX_aio_return 435 -#define __NR_HPUX_aio_cancel 436 -#define __NR_HPUX_aio_suspend 437 -#define __NR_HPUX_aio_fsync 438 -#define __NR_HPUX_mq_open 439 -#define __NR_HPUX_mq_close 440 -#define __NR_HPUX_mq_unlink 441 -#define __NR_HPUX_mq_send 442 -#define __NR_HPUX_mq_receive 443 -#define __NR_HPUX_mq_notify 444 -#define __NR_HPUX_mq_setattr 445 -#define __NR_HPUX_mq_getattr 446 -#define __NR_HPUX_ksem_open 447 -#define __NR_HPUX_ksem_unlink 448 -#define __NR_HPUX_ksem_close 449 -#define __NR_HPUX_ksem_post 450 -#define __NR_HPUX_ksem_wait 451 -#define __NR_HPUX_ksem_read 452 -#define __NR_HPUX_ksem_trywait 453 -#define __NR_HPUX_lwp_rwlock_init 454 -#define __NR_HPUX_lwp_rwlock_destroy 455 -#define __NR_HPUX_lwp_rwlock_rdlock_sys 456 -#define __NR_HPUX_lwp_rwlock_wrlock_sys 457 -#define __NR_HPUX_lwp_rwlock_tryrdlock 458 -#define __NR_HPUX_lwp_rwlock_trywrlock 459 -#define __NR_HPUX_lwp_rwlock_unlock 460 -#define __NR_HPUX_ttrace 461 -#define __NR_HPUX_ttrace_wait 462 -#define __NR_HPUX_lf_wire_mem 463 -#define __NR_HPUX_lf_unwire_mem 464 -#define __NR_HPUX_lf_send_pin_map 465 -#define __NR_HPUX_lf_free_buf 466 -#define __NR_HPUX_lf_wait_nq 467 -#define __NR_HPUX_lf_wakeup_conn_q 468 -#define __NR_HPUX_lf_unused 469 -#define __NR_HPUX_lwp_sema_init 470 -#define __NR_HPUX_lwp_sema_post 471 -#define __NR_HPUX_lwp_sema_wait 472 -#define __NR_HPUX_lwp_sema_trywait 473 -#define __NR_HPUX_lwp_sema_destroy 474 -#define __NR_HPUX_statvfs64 475 -#define __NR_HPUX_fstatvfs64 476 -#define __NR_HPUX_msh_register 477 -#define __NR_HPUX_ptrace64 478 -#define __NR_HPUX_sendfile 479 -#define __NR_HPUX_sendpath 480 -#define __NR_HPUX_sendfile64 481 -#define __NR_HPUX_sendpath64 482 -#define __NR_HPUX_modload 483 -#define __NR_HPUX_moduload 484 -#define __NR_HPUX_modpath 485 -#define __NR_HPUX_getksym 486 -#define __NR_HPUX_modadm 487 -#define __NR_HPUX_modstat 488 -#define __NR_HPUX_lwp_detached_exit 489 -#define __NR_HPUX_crashconf 490 -#define __NR_HPUX_siginhibit 491 -#define __NR_HPUX_sigenable 492 -#define __NR_HPUX_spuctl 493 -#define __NR_HPUX_zerokernelsum 494 -#define __NR_HPUX_nfs_kstat 495 -#define __NR_HPUX_aio_read64 496 -#define __NR_HPUX_aio_write64 497 -#define __NR_HPUX_aio_error64 498 -#define __NR_HPUX_aio_return64 499 -#define __NR_HPUX_aio_cancel64 500 -#define __NR_HPUX_aio_suspend64 501 -#define __NR_HPUX_aio_fsync64 502 -#define __NR_HPUX_lio_listio64 503 -#define __NR_HPUX_recv2 504 -#define __NR_HPUX_recvfrom2 505 -#define __NR_HPUX_send2 506 -#define __NR_HPUX_sendto2 507 -#define __NR_HPUX_acl 508 -#define __NR_HPUX___cnx_p2p_ctl 509 -#define __NR_HPUX___cnx_gsched_ctl 510 -#define __NR_HPUX___cnx_pmon_ctl 511 - -#define __NR_HPUX_syscalls 512 - -/* - * Linux system call numbers. - * - * Cary Coutant says that we should just use another syscall gateway - * page to avoid clashing with the HPUX space, and I think he's right: - * it will would keep a branch out of our syscall entry path, at the - * very least. If we decide to change it later, we can ``just'' tweak - * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be - * 1024 or something. Oh, and recompile libc. =) - * - * 64-bit HPUX binaries get the syscall gateway address passed in a register - * from the kernel at startup, which seems a sane strategy. - */ - -#define __NR_Linux 0 -#define __NR_restart_syscall (__NR_Linux + 0) -#define __NR_exit (__NR_Linux + 1) -#define __NR_fork (__NR_Linux + 2) -#define __NR_read (__NR_Linux + 3) -#define __NR_write (__NR_Linux + 4) -#define __NR_open (__NR_Linux + 5) -#define __NR_close (__NR_Linux + 6) -#define __NR_waitpid (__NR_Linux + 7) -#define __NR_creat (__NR_Linux + 8) -#define __NR_link (__NR_Linux + 9) -#define __NR_unlink (__NR_Linux + 10) -#define __NR_execve (__NR_Linux + 11) -#define __NR_chdir (__NR_Linux + 12) -#define __NR_time (__NR_Linux + 13) -#define __NR_mknod (__NR_Linux + 14) -#define __NR_chmod (__NR_Linux + 15) -#define __NR_lchown (__NR_Linux + 16) -#define __NR_socket (__NR_Linux + 17) -#define __NR_stat (__NR_Linux + 18) -#define __NR_lseek (__NR_Linux + 19) -#define __NR_getpid (__NR_Linux + 20) -#define __NR_mount (__NR_Linux + 21) -#define __NR_bind (__NR_Linux + 22) -#define __NR_setuid (__NR_Linux + 23) -#define __NR_getuid (__NR_Linux + 24) -#define __NR_stime (__NR_Linux + 25) -#define __NR_ptrace (__NR_Linux + 26) -#define __NR_alarm (__NR_Linux + 27) -#define __NR_fstat (__NR_Linux + 28) -#define __NR_pause (__NR_Linux + 29) -#define __NR_utime (__NR_Linux + 30) -#define __NR_connect (__NR_Linux + 31) -#define __NR_listen (__NR_Linux + 32) -#define __NR_access (__NR_Linux + 33) -#define __NR_nice (__NR_Linux + 34) -#define __NR_accept (__NR_Linux + 35) -#define __NR_sync (__NR_Linux + 36) -#define __NR_kill (__NR_Linux + 37) -#define __NR_rename (__NR_Linux + 38) -#define __NR_mkdir (__NR_Linux + 39) -#define __NR_rmdir (__NR_Linux + 40) -#define __NR_dup (__NR_Linux + 41) -#define __NR_pipe (__NR_Linux + 42) -#define __NR_times (__NR_Linux + 43) -#define __NR_getsockname (__NR_Linux + 44) -#define __NR_brk (__NR_Linux + 45) -#define __NR_setgid (__NR_Linux + 46) -#define __NR_getgid (__NR_Linux + 47) -#define __NR_signal (__NR_Linux + 48) -#define __NR_geteuid (__NR_Linux + 49) -#define __NR_getegid (__NR_Linux + 50) -#define __NR_acct (__NR_Linux + 51) -#define __NR_umount2 (__NR_Linux + 52) -#define __NR_getpeername (__NR_Linux + 53) -#define __NR_ioctl (__NR_Linux + 54) -#define __NR_fcntl (__NR_Linux + 55) -#define __NR_socketpair (__NR_Linux + 56) -#define __NR_setpgid (__NR_Linux + 57) -#define __NR_send (__NR_Linux + 58) -#define __NR_uname (__NR_Linux + 59) -#define __NR_umask (__NR_Linux + 60) -#define __NR_chroot (__NR_Linux + 61) -#define __NR_ustat (__NR_Linux + 62) -#define __NR_dup2 (__NR_Linux + 63) -#define __NR_getppid (__NR_Linux + 64) -#define __NR_getpgrp (__NR_Linux + 65) -#define __NR_setsid (__NR_Linux + 66) -#define __NR_pivot_root (__NR_Linux + 67) -#define __NR_sgetmask (__NR_Linux + 68) -#define __NR_ssetmask (__NR_Linux + 69) -#define __NR_setreuid (__NR_Linux + 70) -#define __NR_setregid (__NR_Linux + 71) -#define __NR_mincore (__NR_Linux + 72) -#define __NR_sigpending (__NR_Linux + 73) -#define __NR_sethostname (__NR_Linux + 74) -#define __NR_setrlimit (__NR_Linux + 75) -#define __NR_getrlimit (__NR_Linux + 76) -#define __NR_getrusage (__NR_Linux + 77) -#define __NR_gettimeofday (__NR_Linux + 78) -#define __NR_settimeofday (__NR_Linux + 79) -#define __NR_getgroups (__NR_Linux + 80) -#define __NR_setgroups (__NR_Linux + 81) -#define __NR_sendto (__NR_Linux + 82) -#define __NR_symlink (__NR_Linux + 83) -#define __NR_lstat (__NR_Linux + 84) -#define __NR_readlink (__NR_Linux + 85) -#define __NR_uselib (__NR_Linux + 86) -#define __NR_swapon (__NR_Linux + 87) -#define __NR_reboot (__NR_Linux + 88) -#define __NR_mmap2 (__NR_Linux + 89) -#define __NR_mmap (__NR_Linux + 90) -#define __NR_munmap (__NR_Linux + 91) -#define __NR_truncate (__NR_Linux + 92) -#define __NR_ftruncate (__NR_Linux + 93) -#define __NR_fchmod (__NR_Linux + 94) -#define __NR_fchown (__NR_Linux + 95) -#define __NR_getpriority (__NR_Linux + 96) -#define __NR_setpriority (__NR_Linux + 97) -#define __NR_recv (__NR_Linux + 98) -#define __NR_statfs (__NR_Linux + 99) -#define __NR_fstatfs (__NR_Linux + 100) -#define __NR_stat64 (__NR_Linux + 101) -/* #define __NR_socketcall (__NR_Linux + 102) */ -#define __NR_syslog (__NR_Linux + 103) -#define __NR_setitimer (__NR_Linux + 104) -#define __NR_getitimer (__NR_Linux + 105) -#define __NR_capget (__NR_Linux + 106) -#define __NR_capset (__NR_Linux + 107) -#define __NR_pread64 (__NR_Linux + 108) -#define __NR_pwrite64 (__NR_Linux + 109) -#define __NR_getcwd (__NR_Linux + 110) -#define __NR_vhangup (__NR_Linux + 111) -#define __NR_fstat64 (__NR_Linux + 112) -#define __NR_vfork (__NR_Linux + 113) -#define __NR_wait4 (__NR_Linux + 114) -#define __NR_swapoff (__NR_Linux + 115) -#define __NR_sysinfo (__NR_Linux + 116) -#define __NR_shutdown (__NR_Linux + 117) -#define __NR_fsync (__NR_Linux + 118) -#define __NR_madvise (__NR_Linux + 119) -#define __NR_clone (__NR_Linux + 120) -#define __NR_setdomainname (__NR_Linux + 121) -#define __NR_sendfile (__NR_Linux + 122) -#define __NR_recvfrom (__NR_Linux + 123) -#define __NR_adjtimex (__NR_Linux + 124) -#define __NR_mprotect (__NR_Linux + 125) -#define __NR_sigprocmask (__NR_Linux + 126) -#define __NR_create_module (__NR_Linux + 127) -#define __NR_init_module (__NR_Linux + 128) -#define __NR_delete_module (__NR_Linux + 129) -#define __NR_get_kernel_syms (__NR_Linux + 130) -#define __NR_quotactl (__NR_Linux + 131) -#define __NR_getpgid (__NR_Linux + 132) -#define __NR_fchdir (__NR_Linux + 133) -#define __NR_bdflush (__NR_Linux + 134) -#define __NR_sysfs (__NR_Linux + 135) -#define __NR_personality (__NR_Linux + 136) -#define __NR_afs_syscall (__NR_Linux + 137) /* Syscall for Andrew File System */ -#define __NR_setfsuid (__NR_Linux + 138) -#define __NR_setfsgid (__NR_Linux + 139) -#define __NR__llseek (__NR_Linux + 140) -#define __NR_getdents (__NR_Linux + 141) -#define __NR__newselect (__NR_Linux + 142) -#define __NR_flock (__NR_Linux + 143) -#define __NR_msync (__NR_Linux + 144) -#define __NR_readv (__NR_Linux + 145) -#define __NR_writev (__NR_Linux + 146) -#define __NR_getsid (__NR_Linux + 147) -#define __NR_fdatasync (__NR_Linux + 148) -#define __NR__sysctl (__NR_Linux + 149) -#define __NR_mlock (__NR_Linux + 150) -#define __NR_munlock (__NR_Linux + 151) -#define __NR_mlockall (__NR_Linux + 152) -#define __NR_munlockall (__NR_Linux + 153) -#define __NR_sched_setparam (__NR_Linux + 154) -#define __NR_sched_getparam (__NR_Linux + 155) -#define __NR_sched_setscheduler (__NR_Linux + 156) -#define __NR_sched_getscheduler (__NR_Linux + 157) -#define __NR_sched_yield (__NR_Linux + 158) -#define __NR_sched_get_priority_max (__NR_Linux + 159) -#define __NR_sched_get_priority_min (__NR_Linux + 160) -#define __NR_sched_rr_get_interval (__NR_Linux + 161) -#define __NR_nanosleep (__NR_Linux + 162) -#define __NR_mremap (__NR_Linux + 163) -#define __NR_setresuid (__NR_Linux + 164) -#define __NR_getresuid (__NR_Linux + 165) -#define __NR_sigaltstack (__NR_Linux + 166) -#define __NR_query_module (__NR_Linux + 167) -#define __NR_poll (__NR_Linux + 168) -#define __NR_nfsservctl (__NR_Linux + 169) -#define __NR_setresgid (__NR_Linux + 170) -#define __NR_getresgid (__NR_Linux + 171) -#define __NR_prctl (__NR_Linux + 172) -#define __NR_rt_sigreturn (__NR_Linux + 173) -#define __NR_rt_sigaction (__NR_Linux + 174) -#define __NR_rt_sigprocmask (__NR_Linux + 175) -#define __NR_rt_sigpending (__NR_Linux + 176) -#define __NR_rt_sigtimedwait (__NR_Linux + 177) -#define __NR_rt_sigqueueinfo (__NR_Linux + 178) -#define __NR_rt_sigsuspend (__NR_Linux + 179) -#define __NR_chown (__NR_Linux + 180) -#define __NR_setsockopt (__NR_Linux + 181) -#define __NR_getsockopt (__NR_Linux + 182) -#define __NR_sendmsg (__NR_Linux + 183) -#define __NR_recvmsg (__NR_Linux + 184) -#define __NR_semop (__NR_Linux + 185) -#define __NR_semget (__NR_Linux + 186) -#define __NR_semctl (__NR_Linux + 187) -#define __NR_msgsnd (__NR_Linux + 188) -#define __NR_msgrcv (__NR_Linux + 189) -#define __NR_msgget (__NR_Linux + 190) -#define __NR_msgctl (__NR_Linux + 191) -#define __NR_shmat (__NR_Linux + 192) -#define __NR_shmdt (__NR_Linux + 193) -#define __NR_shmget (__NR_Linux + 194) -#define __NR_shmctl (__NR_Linux + 195) - -#define __NR_getpmsg (__NR_Linux + 196) /* Somebody *wants* streams? */ -#define __NR_putpmsg (__NR_Linux + 197) - -#define __NR_lstat64 (__NR_Linux + 198) -#define __NR_truncate64 (__NR_Linux + 199) -#define __NR_ftruncate64 (__NR_Linux + 200) -#define __NR_getdents64 (__NR_Linux + 201) -#define __NR_fcntl64 (__NR_Linux + 202) -#define __NR_attrctl (__NR_Linux + 203) -#define __NR_acl_get (__NR_Linux + 204) -#define __NR_acl_set (__NR_Linux + 205) -#define __NR_gettid (__NR_Linux + 206) -#define __NR_readahead (__NR_Linux + 207) -#define __NR_tkill (__NR_Linux + 208) -#define __NR_sendfile64 (__NR_Linux + 209) -#define __NR_futex (__NR_Linux + 210) -#define __NR_sched_setaffinity (__NR_Linux + 211) -#define __NR_sched_getaffinity (__NR_Linux + 212) -#define __NR_set_thread_area (__NR_Linux + 213) -#define __NR_get_thread_area (__NR_Linux + 214) -#define __NR_io_setup (__NR_Linux + 215) -#define __NR_io_destroy (__NR_Linux + 216) -#define __NR_io_getevents (__NR_Linux + 217) -#define __NR_io_submit (__NR_Linux + 218) -#define __NR_io_cancel (__NR_Linux + 219) -#define __NR_alloc_hugepages (__NR_Linux + 220) -#define __NR_free_hugepages (__NR_Linux + 221) -#define __NR_exit_group (__NR_Linux + 222) -#define __NR_lookup_dcookie (__NR_Linux + 223) -#define __NR_epoll_create (__NR_Linux + 224) -#define __NR_epoll_ctl (__NR_Linux + 225) -#define __NR_epoll_wait (__NR_Linux + 226) -#define __NR_remap_file_pages (__NR_Linux + 227) -#define __NR_semtimedop (__NR_Linux + 228) -#define __NR_mq_open (__NR_Linux + 229) -#define __NR_mq_unlink (__NR_Linux + 230) -#define __NR_mq_timedsend (__NR_Linux + 231) -#define __NR_mq_timedreceive (__NR_Linux + 232) -#define __NR_mq_notify (__NR_Linux + 233) -#define __NR_mq_getsetattr (__NR_Linux + 234) -#define __NR_waitid (__NR_Linux + 235) -#define __NR_fadvise64_64 (__NR_Linux + 236) -#define __NR_set_tid_address (__NR_Linux + 237) -#define __NR_setxattr (__NR_Linux + 238) -#define __NR_lsetxattr (__NR_Linux + 239) -#define __NR_fsetxattr (__NR_Linux + 240) -#define __NR_getxattr (__NR_Linux + 241) -#define __NR_lgetxattr (__NR_Linux + 242) -#define __NR_fgetxattr (__NR_Linux + 243) -#define __NR_listxattr (__NR_Linux + 244) -#define __NR_llistxattr (__NR_Linux + 245) -#define __NR_flistxattr (__NR_Linux + 246) -#define __NR_removexattr (__NR_Linux + 247) -#define __NR_lremovexattr (__NR_Linux + 248) -#define __NR_fremovexattr (__NR_Linux + 249) -#define __NR_timer_create (__NR_Linux + 250) -#define __NR_timer_settime (__NR_Linux + 251) -#define __NR_timer_gettime (__NR_Linux + 252) -#define __NR_timer_getoverrun (__NR_Linux + 253) -#define __NR_timer_delete (__NR_Linux + 254) -#define __NR_clock_settime (__NR_Linux + 255) -#define __NR_clock_gettime (__NR_Linux + 256) -#define __NR_clock_getres (__NR_Linux + 257) -#define __NR_clock_nanosleep (__NR_Linux + 258) -#define __NR_tgkill (__NR_Linux + 259) -#define __NR_mbind (__NR_Linux + 260) -#define __NR_get_mempolicy (__NR_Linux + 261) -#define __NR_set_mempolicy (__NR_Linux + 262) -#define __NR_vserver (__NR_Linux + 263) -#define __NR_add_key (__NR_Linux + 264) -#define __NR_request_key (__NR_Linux + 265) -#define __NR_keyctl (__NR_Linux + 266) -#define __NR_ioprio_set (__NR_Linux + 267) -#define __NR_ioprio_get (__NR_Linux + 268) -#define __NR_inotify_init (__NR_Linux + 269) -#define __NR_inotify_add_watch (__NR_Linux + 270) -#define __NR_inotify_rm_watch (__NR_Linux + 271) -#define __NR_migrate_pages (__NR_Linux + 272) -#define __NR_pselect6 (__NR_Linux + 273) -#define __NR_ppoll (__NR_Linux + 274) -#define __NR_openat (__NR_Linux + 275) -#define __NR_mkdirat (__NR_Linux + 276) -#define __NR_mknodat (__NR_Linux + 277) -#define __NR_fchownat (__NR_Linux + 278) -#define __NR_futimesat (__NR_Linux + 279) -#define __NR_fstatat64 (__NR_Linux + 280) -#define __NR_unlinkat (__NR_Linux + 281) -#define __NR_renameat (__NR_Linux + 282) -#define __NR_linkat (__NR_Linux + 283) -#define __NR_symlinkat (__NR_Linux + 284) -#define __NR_readlinkat (__NR_Linux + 285) -#define __NR_fchmodat (__NR_Linux + 286) -#define __NR_faccessat (__NR_Linux + 287) -#define __NR_unshare (__NR_Linux + 288) -#define __NR_set_robust_list (__NR_Linux + 289) -#define __NR_get_robust_list (__NR_Linux + 290) -#define __NR_splice (__NR_Linux + 291) -#define __NR_sync_file_range (__NR_Linux + 292) -#define __NR_tee (__NR_Linux + 293) -#define __NR_vmsplice (__NR_Linux + 294) -#define __NR_move_pages (__NR_Linux + 295) -#define __NR_getcpu (__NR_Linux + 296) -#define __NR_epoll_pwait (__NR_Linux + 297) -#define __NR_statfs64 (__NR_Linux + 298) -#define __NR_fstatfs64 (__NR_Linux + 299) -#define __NR_kexec_load (__NR_Linux + 300) -#define __NR_utimensat (__NR_Linux + 301) -#define __NR_signalfd (__NR_Linux + 302) -#define __NR_timerfd (__NR_Linux + 303) -#define __NR_eventfd (__NR_Linux + 304) -#define __NR_fallocate (__NR_Linux + 305) -#define __NR_timerfd_create (__NR_Linux + 306) -#define __NR_timerfd_settime (__NR_Linux + 307) -#define __NR_timerfd_gettime (__NR_Linux + 308) - -#define __NR_Linux_syscalls (__NR_timerfd_gettime + 1) - - -#define __IGNORE_select /* newselect */ -#define __IGNORE_fadvise64 /* fadvise64_64 */ -#define __IGNORE_utimes /* utime */ - - -#define HPUX_GATEWAY_ADDR 0xC0000004 -#define LINUX_GATEWAY_ADDR 0x100 - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -#define SYS_ify(syscall_name) __NR_##syscall_name - -#ifndef ASM_LINE_SEP -# define ASM_LINE_SEP ; -#endif - -/* Definition taken from glibc 2.3.3 - * sysdeps/unix/sysv/linux/hppa/sysdep.h - */ - -#ifdef PIC -/* WARNING: CANNOT BE USED IN A NOP! */ -# define K_STW_ASM_PIC " copy %%r19, %%r4\n" -# define K_LDW_ASM_PIC " copy %%r4, %%r19\n" -# define K_USING_GR4 "%r4", -#else -# define K_STW_ASM_PIC " \n" -# define K_LDW_ASM_PIC " \n" -# define K_USING_GR4 -#endif - -/* GCC has to be warned that a syscall may clobber all the ABI - registers listed as "caller-saves", see page 8, Table 2 - in section 2.2.6 of the PA-RISC RUN-TIME architecture - document. However! r28 is the result and will conflict with - the clobber list so it is left out. Also the input arguments - registers r20 -> r26 will conflict with the list so they - are treated specially. Although r19 is clobbered by the syscall - we cannot say this because it would violate ABI, thus we say - r4 is clobbered and use that register to save/restore r19 - across the syscall. */ - -#define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \ - "%r20", "%r29", "%r31" - -#undef K_INLINE_SYSCALL -#define K_INLINE_SYSCALL(name, nr, args...) ({ \ - long __sys_res; \ - { \ - register unsigned long __res __asm__("r28"); \ - K_LOAD_ARGS_##nr(args) \ - /* FIXME: HACK stw/ldw r19 around syscall */ \ - __asm__ volatile( \ - K_STW_ASM_PIC \ - " ble 0x100(%%sr2, %%r0)\n" \ - " ldi %1, %%r20\n" \ - K_LDW_ASM_PIC \ - : "=r" (__res) \ - : "i" (SYS_ify(name)) K_ASM_ARGS_##nr \ - : "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr \ - ); \ - __sys_res = (long)__res; \ - } \ - if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){ \ - errno = -__sys_res; \ - __sys_res = -1; \ - } \ - __sys_res; \ -}) - -#define K_LOAD_ARGS_0() -#define K_LOAD_ARGS_1(r26) \ - register unsigned long __r26 __asm__("r26") = (unsigned long)(r26); \ - K_LOAD_ARGS_0() -#define K_LOAD_ARGS_2(r26,r25) \ - register unsigned long __r25 __asm__("r25") = (unsigned long)(r25); \ - K_LOAD_ARGS_1(r26) -#define K_LOAD_ARGS_3(r26,r25,r24) \ - register unsigned long __r24 __asm__("r24") = (unsigned long)(r24); \ - K_LOAD_ARGS_2(r26,r25) -#define K_LOAD_ARGS_4(r26,r25,r24,r23) \ - register unsigned long __r23 __asm__("r23") = (unsigned long)(r23); \ - K_LOAD_ARGS_3(r26,r25,r24) -#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22) \ - register unsigned long __r22 __asm__("r22") = (unsigned long)(r22); \ - K_LOAD_ARGS_4(r26,r25,r24,r23) -#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \ - register unsigned long __r21 __asm__("r21") = (unsigned long)(r21); \ - K_LOAD_ARGS_5(r26,r25,r24,r23,r22) - -/* Even with zero args we use r20 for the syscall number */ -#define K_ASM_ARGS_0 -#define K_ASM_ARGS_1 K_ASM_ARGS_0, "r" (__r26) -#define K_ASM_ARGS_2 K_ASM_ARGS_1, "r" (__r25) -#define K_ASM_ARGS_3 K_ASM_ARGS_2, "r" (__r24) -#define K_ASM_ARGS_4 K_ASM_ARGS_3, "r" (__r23) -#define K_ASM_ARGS_5 K_ASM_ARGS_4, "r" (__r22) -#define K_ASM_ARGS_6 K_ASM_ARGS_5, "r" (__r21) - -/* The registers not listed as inputs but clobbered */ -#define K_CLOB_ARGS_6 -#define K_CLOB_ARGS_5 K_CLOB_ARGS_6, "%r21" -#define K_CLOB_ARGS_4 K_CLOB_ARGS_5, "%r22" -#define K_CLOB_ARGS_3 K_CLOB_ARGS_4, "%r23" -#define K_CLOB_ARGS_2 K_CLOB_ARGS_3, "%r24" -#define K_CLOB_ARGS_1 K_CLOB_ARGS_2, "%r25" -#define K_CLOB_ARGS_0 K_CLOB_ARGS_1, "%r26" - -#define _syscall0(type,name) \ -type name(void) \ -{ \ - return K_INLINE_SYSCALL(name, 0); \ -} - -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) \ -{ \ - return K_INLINE_SYSCALL(name, 1, arg1); \ -} - -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1, type2 arg2) \ -{ \ - return K_INLINE_SYSCALL(name, 2, arg1, arg2); \ -} - -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1, type2 arg2, type3 arg3) \ -{ \ - return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \ -} - -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ -{ \ - return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \ -} - -/* select takes 5 arguments */ -#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ -{ \ - return K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); \ -} - -#define __ARCH_WANT_OLD_READDIR -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SYS_ALARM -#define __ARCH_WANT_SYS_GETHOSTNAME -#define __ARCH_WANT_SYS_PAUSE -#define __ARCH_WANT_SYS_SGETMASK -#define __ARCH_WANT_SYS_SIGNAL -#define __ARCH_WANT_SYS_TIME -#define __ARCH_WANT_COMPAT_SYS_TIME -#define __ARCH_WANT_SYS_UTIME -#define __ARCH_WANT_SYS_WAITPID -#define __ARCH_WANT_SYS_SOCKETCALL -#define __ARCH_WANT_SYS_FADVISE64 -#define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_SYS_NICE -#define __ARCH_WANT_SYS_OLD_GETRLIMIT -#define __ARCH_WANT_SYS_OLDUMOUNT -#define __ARCH_WANT_SYS_SIGPENDING -#define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGACTION -#define __ARCH_WANT_SYS_RT_SIGSUSPEND -#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND - -#endif /* __ASSEMBLY__ */ - -#undef STR - -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - -#endif /* __KERNEL__ */ -#endif /* _ASM_PARISC_UNISTD_H_ */ diff --git a/include/asm-parisc/unwind.h b/include/asm-parisc/unwind.h deleted file mode 100644 index 2f7e6e50a158..000000000000 --- a/include/asm-parisc/unwind.h +++ /dev/null @@ -1,77 +0,0 @@ -#ifndef _UNWIND_H_ -#define _UNWIND_H_ - -#include - -/* From ABI specifications */ -struct unwind_table_entry { - unsigned int region_start; - unsigned int region_end; - unsigned int Cannot_unwind:1; /* 0 */ - unsigned int Millicode:1; /* 1 */ - unsigned int Millicode_save_sr0:1; /* 2 */ - unsigned int Region_description:2; /* 3..4 */ - unsigned int reserved1:1; /* 5 */ - unsigned int Entry_SR:1; /* 6 */ - unsigned int Entry_FR:4; /* number saved *//* 7..10 */ - unsigned int Entry_GR:5; /* number saved *//* 11..15 */ - unsigned int Args_stored:1; /* 16 */ - unsigned int Variable_Frame:1; /* 17 */ - unsigned int Separate_Package_Body:1; /* 18 */ - unsigned int Frame_Extension_Millicode:1; /* 19 */ - unsigned int Stack_Overflow_Check:1; /* 20 */ - unsigned int Two_Instruction_SP_Increment:1; /* 21 */ - unsigned int Ada_Region:1; /* 22 */ - unsigned int cxx_info:1; /* 23 */ - unsigned int cxx_try_catch:1; /* 24 */ - unsigned int sched_entry_seq:1; /* 25 */ - unsigned int reserved2:1; /* 26 */ - unsigned int Save_SP:1; /* 27 */ - unsigned int Save_RP:1; /* 28 */ - unsigned int Save_MRP_in_frame:1; /* 29 */ - unsigned int extn_ptr_defined:1; /* 30 */ - unsigned int Cleanup_defined:1; /* 31 */ - - unsigned int MPE_XL_interrupt_marker:1; /* 0 */ - unsigned int HP_UX_interrupt_marker:1; /* 1 */ - unsigned int Large_frame:1; /* 2 */ - unsigned int Pseudo_SP_Set:1; /* 3 */ - unsigned int reserved4:1; /* 4 */ - unsigned int Total_frame_size:27; /* 5..31 */ -}; - -struct unwind_table { - struct list_head list; - const char *name; - unsigned long gp; - unsigned long base_addr; - unsigned long start; - unsigned long end; - const struct unwind_table_entry *table; - unsigned long length; -}; - -struct unwind_frame_info { - struct task_struct *t; - /* Eventually we would like to be able to get at any of the registers - available; but for now we only try to get the sp and ip for each - frame */ - /* struct pt_regs regs; */ - unsigned long sp, ip, rp, r31; - unsigned long prev_sp, prev_ip; -}; - -struct unwind_table * -unwind_table_add(const char *name, unsigned long base_addr, - unsigned long gp, void *start, void *end); -void -unwind_table_remove(struct unwind_table *table); - -void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t, - struct pt_regs *regs); -void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t); -void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs); -int unwind_once(struct unwind_frame_info *info); -int unwind_to_user(struct unwind_frame_info *info); - -#endif diff --git a/include/asm-parisc/user.h b/include/asm-parisc/user.h deleted file mode 100644 index 80224753e508..000000000000 --- a/include/asm-parisc/user.h +++ /dev/null @@ -1,5 +0,0 @@ -/* This file should not exist, but lots of generic code still includes - it. It's a hangover from old a.out days and the traditional core - dump format. We are ELF-only, and so are our core dumps. If we - need to support HP/UX core format then we'll do it here - eventually. */ diff --git a/include/asm-parisc/vga.h b/include/asm-parisc/vga.h deleted file mode 100644 index 171399a88ca6..000000000000 --- a/include/asm-parisc/vga.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __ASM_PARISC_VGA_H__ -#define __ASM_PARISC_VGA_H__ - -/* nothing */ - -#endif /* __ASM_PARISC_VGA_H__ */ diff --git a/include/asm-parisc/xor.h b/include/asm-parisc/xor.h deleted file mode 100644 index c82eb12a5b18..000000000000 --- a/include/asm-parisc/xor.h +++ /dev/null @@ -1 +0,0 @@ -#include -- cgit v1.2.1 From fe9053b30bb48b99f7b45541249f5cfe96bdf7f7 Mon Sep 17 00:00:00 2001 From: Tom Talpey Date: Thu, 9 Oct 2008 14:59:59 -0400 Subject: RPC/RDMA: add data types and new FRMR memory registration enum. Internal RPC/RDMA structure updates in preparation for FRMR support. Signed-off-by: Tom Talpey Acked-by: Tom Tucker Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprtrdma.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h index 4de56b1d372b..55a5d92ca1e2 100644 --- a/include/linux/sunrpc/xprtrdma.h +++ b/include/linux/sunrpc/xprtrdma.h @@ -78,6 +78,7 @@ enum rpcrdma_memreg { RPCRDMA_MEMWINDOWS, RPCRDMA_MEMWINDOWS_ASYNC, RPCRDMA_MTHCAFMR, + RPCRDMA_FRMR, RPCRDMA_ALLPHYSICAL, RPCRDMA_LAST }; -- cgit v1.2.1 From 5675add36e76b9487e7f9e689f854cb8d6afd9b4 Mon Sep 17 00:00:00 2001 From: Tom Talpey Date: Thu, 9 Oct 2008 15:01:41 -0400 Subject: RPC/RDMA: harden connection logic against missing/late rdma_cm upcalls. Add defensive timeouts to wait_for_completion() calls in RDMA address resolution, and make them interruptible. Fix the timeout units to milliseconds (formerly jiffies) and move to private header. Signed-off-by: Tom Talpey Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprtrdma.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h index 55a5d92ca1e2..54a379c9e8eb 100644 --- a/include/linux/sunrpc/xprtrdma.h +++ b/include/linux/sunrpc/xprtrdma.h @@ -66,9 +66,6 @@ #define RPCRDMA_INLINE_PAD_THRESH (512)/* payload threshold to pad (bytes) */ -#define RDMA_RESOLVE_TIMEOUT (5*HZ) /* TBD 5 seconds */ -#define RDMA_CONNECT_RETRY_MAX (2) /* retries if no listener backlog */ - /* memory registration strategies */ #define RPCRDMA_PERSISTENT_REGISTRATION (1) -- cgit v1.2.1 From 061b1bd394ca8628b7c24eb4658ba3535da4249a Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 24 Sep 2008 14:46:44 -0700 Subject: Staging: add TAINT_CRAP for all drivers/staging code We need to add a flag for all code that is in the drivers/staging/ directory to prevent all other kernel developers from worrying about issues here, and to notify users that the drivers might not be as good as they are normally used to. Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a TAINT flag for the support level of a kernel module in the Novell enterprise kernel release. This is the kernel portion of this feature, the ability for the flag to be set needs to be done in the build process and will happen in a follow-up patch. Cc: Andreas Gruenbacher Cc: Jeff Mahoney Signed-off-by: Greg Kroah-Hartman --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2651f805ba6d..b36805cb95fb 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -260,6 +260,7 @@ extern enum system_states { #define TAINT_DIE (1<<7) #define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8) #define TAINT_WARN (1<<9) +#define TAINT_CRAP (1<<10) extern void dump_stack(void) __cold; -- cgit v1.2.1 From f9da8d157b60d8c5bfc5a21fc50538fdb754a65b Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Fri, 10 Oct 2008 23:14:14 -0400 Subject: Input: move map_to_7segment.h to include/linux The map_to_7segment.h provides generic 7segment LED mappings and is designed to be used by other drivers. Moving it to common area will make it more usable. Also exporting it to userspace will help users of sysfs interface. Signed-off-by: Atsushi Nemoto Acked-by: Henk Vergonet Signed-off-by: Dmitry Torokhov --- include/linux/Kbuild | 1 + include/linux/map_to_7segment.h | 187 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 188 insertions(+) create mode 100644 include/linux/map_to_7segment.h (limited to 'include') diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 4c4142c5aa6e..0b136c5990cc 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -106,6 +106,7 @@ header-y += keyctl.h header-y += limits.h header-y += magic.h header-y += major.h +header-y += map_to_7segment.h header-y += matroxfb.h header-y += meye.h header-y += minix_fs.h diff --git a/include/linux/map_to_7segment.h b/include/linux/map_to_7segment.h new file mode 100644 index 000000000000..7df8432c4402 --- /dev/null +++ b/include/linux/map_to_7segment.h @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2005 Henk Vergonet + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef MAP_TO_7SEGMENT_H +#define MAP_TO_7SEGMENT_H + +/* This file provides translation primitives and tables for the conversion + * of (ASCII) characters to a 7-segments notation. + * + * The 7 segment's wikipedia notation below is used as standard. + * See: http://en.wikipedia.org/wiki/Seven_segment_display + * + * Notation: +-a-+ + * f b + * +-g-+ + * e c + * +-d-+ + * + * Usage: + * + * Register a map variable, and fill it with a character set: + * static SEG7_DEFAULT_MAP(map_seg7); + * + * + * Then use for conversion: + * seg7 = map_to_seg7(&map_seg7, some_char); + * ... + * + * In device drivers it is recommended, if required, to make the char map + * accessible via the sysfs interface using the following scheme: + * + * static ssize_t show_map(struct device *dev, char *buf) { + * memcpy(buf, &map_seg7, sizeof(map_seg7)); + * return sizeof(map_seg7); + * } + * static ssize_t store_map(struct device *dev, const char *buf, size_t cnt) { + * if(cnt != sizeof(map_seg7)) + * return -EINVAL; + * memcpy(&map_seg7, buf, cnt); + * return cnt; + * } + * static DEVICE_ATTR(map_seg7, PERMS_RW, show_map, store_map); + * + * History: + * 2005-05-31 RFC linux-kernel@vger.kernel.org + */ +#include + + +#define BIT_SEG7_A 0 +#define BIT_SEG7_B 1 +#define BIT_SEG7_C 2 +#define BIT_SEG7_D 3 +#define BIT_SEG7_E 4 +#define BIT_SEG7_F 5 +#define BIT_SEG7_G 6 +#define BIT_SEG7_RESERVED 7 + +struct seg7_conversion_map { + unsigned char table[128]; +}; + +static inline int map_to_seg7(struct seg7_conversion_map *map, int c) +{ + return c >= 0 && c < sizeof(map->table) ? map->table[c] : -EINVAL; +} + +#define SEG7_CONVERSION_MAP(_name, _map) \ + struct seg7_conversion_map _name = { .table = { _map } } + +/* + * It is recommended to use a facility that allows user space to redefine + * custom character sets for LCD devices. Please use a sysfs interface + * as described above. + */ +#define MAP_TO_SEG7_SYSFS_FILE "map_seg7" + +/******************************************************************************* + * ASCII conversion table + ******************************************************************************/ + +#define _SEG7(l,a,b,c,d,e,f,g) \ + ( a<',1,1,0,0,0,0,1), _SEG7('?',1,1,1,0,0,1,0),\ + _SEG7('@',1,1,0,1,1,1,1), + +#define _MAP_65_90_ASCII_SEG7_ALPHA_UPPR \ + _SEG7('A',1,1,1,0,1,1,1), _SEG7('B',1,1,1,1,1,1,1), _SEG7('C',1,0,0,1,1,1,0),\ + _SEG7('D',1,1,1,1,1,1,0), _SEG7('E',1,0,0,1,1,1,1), _SEG7('F',1,0,0,0,1,1,1),\ + _SEG7('G',1,1,1,1,0,1,1), _SEG7('H',0,1,1,0,1,1,1), _SEG7('I',0,1,1,0,0,0,0),\ + _SEG7('J',0,1,1,1,0,0,0), _SEG7('K',0,1,1,0,1,1,1), _SEG7('L',0,0,0,1,1,1,0),\ + _SEG7('M',1,1,1,0,1,1,0), _SEG7('N',1,1,1,0,1,1,0), _SEG7('O',1,1,1,1,1,1,0),\ + _SEG7('P',1,1,0,0,1,1,1), _SEG7('Q',1,1,1,1,1,1,0), _SEG7('R',1,1,1,0,1,1,1),\ + _SEG7('S',1,0,1,1,0,1,1), _SEG7('T',0,0,0,1,1,1,1), _SEG7('U',0,1,1,1,1,1,0),\ + _SEG7('V',0,1,1,1,1,1,0), _SEG7('W',0,1,1,1,1,1,1), _SEG7('X',0,1,1,0,1,1,1),\ + _SEG7('Y',0,1,1,0,0,1,1), _SEG7('Z',1,1,0,1,1,0,1), + +#define _MAP_91_96_ASCII_SEG7_SYMBOL \ + _SEG7('[',1,0,0,1,1,1,0), _SEG7('\\',0,0,1,0,0,1,1),_SEG7(']',1,1,1,1,0,0,0),\ + _SEG7('^',1,1,0,0,0,1,0), _SEG7('_',0,0,0,1,0,0,0), _SEG7('`',0,1,0,0,0,0,0), + +#define _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ + _SEG7('A',1,1,1,0,1,1,1), _SEG7('b',0,0,1,1,1,1,1), _SEG7('c',0,0,0,1,1,0,1),\ + _SEG7('d',0,1,1,1,1,0,1), _SEG7('E',1,0,0,1,1,1,1), _SEG7('F',1,0,0,0,1,1,1),\ + _SEG7('G',1,1,1,1,0,1,1), _SEG7('h',0,0,1,0,1,1,1), _SEG7('i',0,0,1,0,0,0,0),\ + _SEG7('j',0,0,1,1,0,0,0), _SEG7('k',0,0,1,0,1,1,1), _SEG7('L',0,0,0,1,1,1,0),\ + _SEG7('M',1,1,1,0,1,1,0), _SEG7('n',0,0,1,0,1,0,1), _SEG7('o',0,0,1,1,1,0,1),\ + _SEG7('P',1,1,0,0,1,1,1), _SEG7('q',1,1,1,0,0,1,1), _SEG7('r',0,0,0,0,1,0,1),\ + _SEG7('S',1,0,1,1,0,1,1), _SEG7('T',0,0,0,1,1,1,1), _SEG7('u',0,0,1,1,1,0,0),\ + _SEG7('v',0,0,1,1,1,0,0), _SEG7('W',0,1,1,1,1,1,1), _SEG7('X',0,1,1,0,1,1,1),\ + _SEG7('y',0,1,1,1,0,1,1), _SEG7('Z',1,1,0,1,1,0,1), + +#define _MAP_123_126_ASCII_SEG7_SYMBOL \ + _SEG7('{',1,0,0,1,1,1,0), _SEG7('|',0,0,0,0,1,1,0), _SEG7('}',1,1,1,1,0,0,0),\ + _SEG7('~',1,0,0,0,0,0,0), + +/* Maps */ + +/* This set tries to map as close as possible to the visible characteristics + * of the ASCII symbol, lowercase and uppercase letters may differ in + * presentation on the display. + */ +#define MAP_ASCII7SEG_ALPHANUM \ + _MAP_0_32_ASCII_SEG7_NON_PRINTABLE \ + _MAP_33_47_ASCII_SEG7_SYMBOL \ + _MAP_48_57_ASCII_SEG7_NUMERIC \ + _MAP_58_64_ASCII_SEG7_SYMBOL \ + _MAP_65_90_ASCII_SEG7_ALPHA_UPPR \ + _MAP_91_96_ASCII_SEG7_SYMBOL \ + _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ + _MAP_123_126_ASCII_SEG7_SYMBOL + +/* This set tries to map as close as possible to the symbolic characteristics + * of the ASCII character for maximum discrimination. + * For now this means all alpha chars are in lower case representations. + * (This for example facilitates the use of hex numbers with uppercase input.) + */ +#define MAP_ASCII7SEG_ALPHANUM_LC \ + _MAP_0_32_ASCII_SEG7_NON_PRINTABLE \ + _MAP_33_47_ASCII_SEG7_SYMBOL \ + _MAP_48_57_ASCII_SEG7_NUMERIC \ + _MAP_58_64_ASCII_SEG7_SYMBOL \ + _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ + _MAP_91_96_ASCII_SEG7_SYMBOL \ + _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ + _MAP_123_126_ASCII_SEG7_SYMBOL + +#define SEG7_DEFAULT_MAP(_name) \ + SEG7_CONVERSION_MAP(_name,MAP_ASCII7SEG_ALPHANUM) + +#endif /* MAP_TO_7SEGMENT_H */ + -- cgit v1.2.1 From 6283815d1853b7daf31dc4adb83e5c1dc9568251 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 13 Oct 2008 11:55:12 +1100 Subject: md: linear: Represent dev_info->size and dev_info->offset in sectors. Rename them to num_sectors and start_sector which is more descriptive. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- include/linux/raid/linear.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/raid/linear.h b/include/linux/raid/linear.h index 7e375111d007..87090e98529f 100644 --- a/include/linux/raid/linear.h +++ b/include/linux/raid/linear.h @@ -5,8 +5,8 @@ struct dev_info { mdk_rdev_t *rdev; - sector_t size; - sector_t offset; + sector_t num_sectors; + sector_t start_sector; }; typedef struct dev_info dev_info_t; -- cgit v1.2.1 From ab5bd5cbc8d4b868378d062eed3d4240930fbb86 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 13 Oct 2008 11:55:12 +1100 Subject: md: Convert remaining 1k representations in linear.c to sectors. This patch renames hash_spacing and preshift to spacing and sector_shift respectively with the following change of semantics: Case 1: (sizeof(sector_t) <= sizeof(u32)). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In this case, we have sector_shift = preshift = 0 and spacing = 2 * hash_spacing. Hence, the index for the hash table which is computed by the new code in which_dev() as sector / spacing equals the old value which was (sector/2) / hash_spacing. Note also that the value of nb_zone stays the same because both sz and base double. Case 2: (sizeof(sector_t) > sizeof(u32)). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (aka the shifting dance case). Here we have sector_shift = preshift + 1 and spacing = 2 * hash_spacing during the computation of nb_zone and curr_sector, but spacing = hash_spacing in which_dev() because in the last hunk of the patch for linear.c we shift down conf->spacing (= 2 * hash_spacing) by one more bit than in the old code. Hence in the computation of nb_zone, sz and base have the same value as before, so nb_zone is not affected. Also curr_sector in the next hunk stays the same. In which_dev() the hash table index is computed as (sector >> sector_shift) / spacing In view of sector_shift = preshift + 1 and spacing = hash_spacing, this equals ((sector/2) >> preshift) / hash_spacing which is the value computed by the old code. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- include/linux/raid/linear.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/raid/linear.h b/include/linux/raid/linear.h index 87090e98529f..f38b9c586afb 100644 --- a/include/linux/raid/linear.h +++ b/include/linux/raid/linear.h @@ -15,9 +15,11 @@ struct linear_private_data { struct linear_private_data *prev; /* earlier version */ dev_info_t **hash_table; - sector_t hash_spacing; + sector_t spacing; sector_t array_sectors; - int preshift; /* shift before dividing by hash_spacing */ + int sector_shift; /* shift before dividing + * by spacing + */ dev_info_t disks[0]; }; -- cgit v1.2.1 From fb4d8c76e56a887b9eee99fbc55fe82b18625d30 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 13 Oct 2008 11:55:12 +1100 Subject: md: Remove unnecessary #includes, #defines, and function declarations. A lot of cruft has gathered over the years. Time to remove it. Signed-off-by: NeilBrown --- include/linux/raid/md.h | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'include') diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h index dc0e3fcb9f28..bb727fa1ce7f 100644 --- a/include/linux/raid/md.h +++ b/include/linux/raid/md.h @@ -19,27 +19,7 @@ #define _MD_H #include -#include -#include -#include -#include -#include -#include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include /* * 'md_p.h' holds the 'physical' layout of RAID devices @@ -83,10 +63,8 @@ extern void md_wakeup_thread(mdk_thread_t *thread); extern void md_check_recovery(mddev_t *mddev); extern void md_write_start(mddev_t *mddev, struct bio *bi); extern void md_write_end(mddev_t *mddev); -extern void md_handle_safemode(mddev_t *mddev); extern void md_done_sync(mddev_t *mddev, int blocks, int ok); extern void md_error (mddev_t *mddev, mdk_rdev_t *rdev); -extern void md_unplug_mddev(mddev_t *mddev); extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, sector_t sector, int size, struct page *page); -- cgit v1.2.1 From d710e13812600037a723a673dc5c96a071de98d3 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 13 Oct 2008 11:55:12 +1100 Subject: md: remove space after function name in declaration and call. Having function (args) instead of function(args) make is harder to search for calls of particular functions. So remove all those spaces. Signed-off-by: NeilBrown --- include/linux/raid/md.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h index bb727fa1ce7f..82bea14cae1a 100644 --- a/include/linux/raid/md.h +++ b/include/linux/raid/md.h @@ -54,17 +54,17 @@ extern int mdp_major; -extern int register_md_personality (struct mdk_personality *p); -extern int unregister_md_personality (struct mdk_personality *p); -extern mdk_thread_t * md_register_thread (void (*run) (mddev_t *mddev), +extern int register_md_personality(struct mdk_personality *p); +extern int unregister_md_personality(struct mdk_personality *p); +extern mdk_thread_t * md_register_thread(void (*run) (mddev_t *mddev), mddev_t *mddev, const char *name); -extern void md_unregister_thread (mdk_thread_t *thread); +extern void md_unregister_thread(mdk_thread_t *thread); extern void md_wakeup_thread(mdk_thread_t *thread); extern void md_check_recovery(mddev_t *mddev); extern void md_write_start(mddev_t *mddev, struct bio *bi); extern void md_write_end(mddev_t *mddev); extern void md_done_sync(mddev_t *mddev, int blocks, int ok); -extern void md_error (mddev_t *mddev, mdk_rdev_t *rdev); +extern void md_error(mddev_t *mddev, mdk_rdev_t *rdev); extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, sector_t sector, int size, struct page *page); -- cgit v1.2.1 From f0c0a376d0fcd4c5579ecf5e95f88387cba85211 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Sun, 17 Aug 2008 15:24:38 -0500 Subject: [SCSI] Add helper code so transport classes/driver can control queueing (v3) SCSI-ml manages the queueing limits for the device and host, but does not do so at the target level. However something something similar can come in userful when a driver is transitioning a transport object to the the blocked state, becuase at that time we do not want to queue io and we do not want the queuecommand to be called again. The patch adds code similar to the exisiting SCSI_ML_*BUSY handlers. You can now return SCSI_MLQUEUE_TARGET_BUSY when we hit a transport level queueing issue like the hw cannot allocate some resource at the iscsi session/connection level, or the target has temporarily closed or shrunk the queueing window, or if we are transitioning to the blocked state. bnx2i, when they rework their firmware according to netdev developers requests, will also need to be able to limit queueing at this level. bnx2i will hook into libiscsi, but will allocate a scsi host per netdevice/hba, so unlike pure software iscsi/iser which is allocating a host per session, it cannot set the scsi_host->can_queue and return SCSI_MLQUEUE_HOST_BUSY to reflect queueing limits on the transport. The iscsi class/driver can also set a scsi_target->can_queue value which reflects the max commands the driver/class can support. For iscsi this reflects the number of commands we can support for each session due to session/connection hw limits, driver limits, and to also reflect the session/targets's queueing window. Changes: v1 - initial patch. v2 - Fix scsi_run_queue handling of multiple blocked targets. Previously we would break from the main loop if a device was added back on the starved list. We now run over the list and check if any target is blocked. v3 - Rediff for scsi-misc. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/scsi.h | 1 + include/scsi/scsi_device.h | 10 ++++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 192f8716aa9e..3a5662b2817e 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -426,6 +426,7 @@ static inline int scsi_is_wlun(unsigned int lun) #define SCSI_MLQUEUE_HOST_BUSY 0x1055 #define SCSI_MLQUEUE_DEVICE_BUSY 0x1056 #define SCSI_MLQUEUE_EH_RETRY 0x1057 +#define SCSI_MLQUEUE_TARGET_BUSY 0x1058 /* * Use these to separate status msg and our bytes diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index b49e725be039..a37a8148a310 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -238,6 +238,16 @@ struct scsi_target { * for the device at a time. */ unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */ /* means no lun present */ + /* commands actually active on LLD. protected by host lock. */ + unsigned int target_busy; + /* + * LLDs should set this in the slave_alloc host template callout. + * If set to zero then there is not limit. + */ + unsigned int can_queue; + unsigned int target_blocked; + unsigned int max_target_blocked; +#define SCSI_DEFAULT_TARGET_BLOCKED 3 char scsi_level; struct execute_work ew; -- cgit v1.2.1 From fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 19 Aug 2008 18:45:23 -0500 Subject: [SCSI] fc class: unblock target after calling terminate callback (take 2) When we block a rport and the driver implements the terminate callback we will fail IO that was running quickly. However IO that was in the scsi_device/block queue sits there until the dev_loss_tmo fires, and this can make it look like IO is lost because new IO will get executed but that IO stuck in the blocked queue sits there for some time longer. With this patch when the fast io fail tmo fires, we will fail the blocked IO and any new IO. This patch also allows all drivers to partially support the fast io fail tmo. If the terminate io callback is not implemented, we will still fail blocked IO and any new IO, so multipath can handle that. This patch also allows the fc and iscsi classes to implement the same behavior. The timers are just unfornately named differently. This patch also fixes the problem where drivers were unblocking the target in their terminate callback, which was needed for rport removal, but for fast io fail timeout it would cause IO to bounce arround the scsi/block layer and the LLD queuecommand. And it for drivers that could have IO stuck but did not have a terminate callback the unblock calls in the class will fix them. v2. - fix up bit setting style to meet JamesS's pref. - Broke out new host byte error changes to make it easier to read. - added JamesS's ack from list. v1 - initial patch Signed-off-by: Mike Christie Acked-by: James Smart Signed-off-by: James Bottomley --- include/scsi/scsi_transport_fc.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 21018a4df452..fb8d01370663 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -357,6 +357,7 @@ struct fc_rport { /* aka fc_starget_attrs */ /* bit field values for struct fc_rport "flags" field: */ #define FC_RPORT_DEVLOSS_PENDING 0x01 #define FC_RPORT_SCAN_PENDING 0x02 +#define FC_RPORT_FAST_FAIL_TIMEDOUT 0x03 #define dev_to_rport(d) \ container_of(d, struct fc_rport, dev) @@ -683,7 +684,10 @@ fc_remote_port_chkready(struct fc_rport *rport) result = DID_NO_CONNECT << 16; break; case FC_PORTSTATE_BLOCKED: - result = DID_IMM_RETRY << 16; + if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT) + result = DID_NO_CONNECT << 16; + else + result = DID_IMM_RETRY << 16; break; default: result = DID_NO_CONNECT << 16; -- cgit v1.2.1 From a4dfaa6f2e55b736adf2719133996f7e7dc309bc Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 19 Aug 2008 18:45:25 -0500 Subject: [SCSI] scsi: add transport host byte errors (v3) Currently, if there is a transport problem the iscsi drivers will return outstanding commands (commands being exeucted by the driver/fw/hw) with DID_BUS_BUSY and block the session so no new commands can be queued. Commands that are caught between the failure handling and blocking are failed with DID_IMM_RETRY or one of the scsi ml queuecommand return values. When the recovery_timeout fires, the iscsi drivers then fail IO with DID_NO_CONNECT. For fcp, some drivers will fail some outstanding IO (disk but possibly not tape) with DID_BUS_BUSY or DID_ERROR or some other value that causes a retry and hits the scsi_error.c failfast check, block the rport, and commands caught in the race are failed with DID_IMM_RETRY. Other drivers, may hold onto all IO and wait for the terminate_rport_io or dev_loss_tmo_callbk to be called. The following patches attempt to unify what upper layers will see drivers like multipath can make a good guess. This relies on drivers being hooked into their transport class. This first patch just defines two new host byte errors so drivers can return the same value for when a rport/session is blocked and for when the fast_io_fail_tmo fires. The idea is that if the LLD/class detects a problem and is going to block a rport/session, then if the LLD wants or must return the command to scsi-ml, then it can return it with DID_TRANSPORT_DISRUPTED. This will requeue the IO into the same scsi queue it came from, until the fast io fail timer fires and the class decides what to do. When using multipath and the fast_io_fail_tmo fires then the class can fail commands with DID_TRANSPORT_FAILFAST or drivers can use DID_TRANSPORT_FAILFAST in their terminate_rport_io callbacks or the equivlent in iscsi if we ever implement more advanced recovery methods. A LLD, like lpfc, could continue to return DID_ERROR and then it will hit the normal failfast path, so drivers do not have fully be ported to work better. The point of the patches is that upper layers will not see a failure that could be recovered from while the rport/session is blocked until fast_io_fail_tmo/recovery_timeout fires. V3 Remove some comments. V2 Fixed patch/diff errors and renamed DID_TRANSPORT_BLOCKED to DID_TRANSPORT_DISRUPTED. V1 initial patch. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/scsi.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 3a5662b2817e..a109165714d6 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -381,6 +381,11 @@ static inline int scsi_is_wlun(unsigned int lun) #define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */ #define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also * without decrementing the retry count */ +#define DID_TRANSPORT_DISRUPTED 0x0e /* Transport error disrupted execution + * and the driver blocked the port to + * recover the link. Transport class will + * retry or fail IO */ +#define DID_TRANSPORT_FAILFAST 0x0f /* Transport class fastfailed the io */ #define DRIVER_OK 0x00 /* Driver status */ /* -- cgit v1.2.1 From f46e307da925a7b71a0018c0510cdc6e588b87fc Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 19 Aug 2008 18:45:27 -0500 Subject: [SCSI] fc class: Add support for new transport errors If the target is blocked and fast io fail tmo has not fired then we requeue with DID_TRANSPORT_DISRUPTED. Once that tmo fires we fail with DID_TRANSPORT_FAILFAST. v2 - seperate from "fc class: unblock target after calling terminate callback" to make it easier to review. - Add JamesS's ack from list. v2 - initial patch Signed-off-by: Mike Christie Acked-by: James Smart Signed-off-by: James Bottomley --- include/scsi/scsi_transport_fc.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index fb8d01370663..49d8913c4f86 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -679,15 +679,15 @@ fc_remote_port_chkready(struct fc_rport *rport) if (rport->roles & FC_PORT_ROLE_FCP_TARGET) result = 0; else if (rport->flags & FC_RPORT_DEVLOSS_PENDING) - result = DID_IMM_RETRY << 16; + result = DID_TRANSPORT_DISRUPTED << 16; else result = DID_NO_CONNECT << 16; break; case FC_PORTSTATE_BLOCKED: if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT) - result = DID_NO_CONNECT << 16; + result = DID_TRANSPORT_FAILFAST << 16; else - result = DID_IMM_RETRY << 16; + result = DID_TRANSPORT_DISRUPTED << 16; break; default: result = DID_NO_CONNECT << 16; -- cgit v1.2.1 From 6000a368cd8e6da1caf101411bdb494cd6fb8b09 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 19 Aug 2008 18:45:30 -0500 Subject: [SCSI] block: separate failfast into multiple bits. Multipath is best at handling transport errors. If it gets a device error then there is not much the multipath layer can do. It will just access the same device but from a different path. This patch breaks up failfast into device, transport and driver errors. The multipath layers (md and dm mutlipath) only ask the lower levels to fast fail transport errors. The user of failfast, read ahead, will ask to fast fail on all errors. Note that blk_noretry_request will return true if any failfast bit is set. This allows drivers that do not support the multipath failfast bits to continue to fail on any failfast error like before. Drivers like scsi that are able to fail fast specific errors can check for the specific fail fast type. In the next patch I will convert scsi. Signed-off-by: Mike Christie Cc: Jens Axboe Signed-off-by: James Bottomley --- include/linux/bio.h | 26 +++++++++++++++++--------- include/linux/blkdev.h | 15 ++++++++++++--- 2 files changed, 29 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/bio.h b/include/linux/bio.h index ff5b4cf9e2da..1beda208cbfb 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -129,25 +129,30 @@ struct bio { * bit 2 -- barrier * Insert a serialization point in the IO queue, forcing previously * submitted IO to be completed before this oen is issued. - * bit 3 -- fail fast, don't want low level driver retries - * bit 4 -- synchronous I/O hint: the block layer will unplug immediately + * bit 3 -- synchronous I/O hint: the block layer will unplug immediately * Note that this does NOT indicate that the IO itself is sync, just * that the block layer will not postpone issue of this IO by plugging. - * bit 5 -- metadata request + * bit 4 -- metadata request * Used for tracing to differentiate metadata and data IO. May also * get some preferential treatment in the IO scheduler - * bit 6 -- discard sectors + * bit 5 -- discard sectors * Informs the lower level device that this range of sectors is no longer * used by the file system and may thus be freed by the device. Used * for flash based storage. + * bit 6 -- fail fast device errors + * bit 7 -- fail fast transport errors + * bit 8 -- fail fast driver errors + * Don't want driver retries for any fast fail whatever the reason. */ #define BIO_RW 0 /* Must match RW in req flags (blkdev.h) */ #define BIO_RW_AHEAD 1 /* Must match FAILFAST in req flags */ #define BIO_RW_BARRIER 2 -#define BIO_RW_FAILFAST 3 -#define BIO_RW_SYNC 4 -#define BIO_RW_META 5 -#define BIO_RW_DISCARD 6 +#define BIO_RW_SYNC 3 +#define BIO_RW_META 4 +#define BIO_RW_DISCARD 5 +#define BIO_RW_FAILFAST_DEV 6 +#define BIO_RW_FAILFAST_TRANSPORT 7 +#define BIO_RW_FAILFAST_DRIVER 8 /* * upper 16 bits of bi_rw define the io priority of this bio @@ -174,7 +179,10 @@ struct bio { #define bio_sectors(bio) ((bio)->bi_size >> 9) #define bio_barrier(bio) ((bio)->bi_rw & (1 << BIO_RW_BARRIER)) #define bio_sync(bio) ((bio)->bi_rw & (1 << BIO_RW_SYNC)) -#define bio_failfast(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST)) +#define bio_failfast_dev(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DEV)) +#define bio_failfast_transport(bio) \ + ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_TRANSPORT)) +#define bio_failfast_driver(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DRIVER)) #define bio_rw_ahead(bio) ((bio)->bi_rw & (1 << BIO_RW_AHEAD)) #define bio_rw_meta(bio) ((bio)->bi_rw & (1 << BIO_RW_META)) #define bio_discard(bio) ((bio)->bi_rw & (1 << BIO_RW_DISCARD)) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a92d9e4ea96e..f3491d225268 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -87,7 +87,9 @@ enum { */ enum rq_flag_bits { __REQ_RW, /* not set, read. set, write */ - __REQ_FAILFAST, /* no low level driver retries */ + __REQ_FAILFAST_DEV, /* no driver retries of device errors */ + __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */ + __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */ __REQ_DISCARD, /* request to discard sectors */ __REQ_SORTED, /* elevator knows about this request */ __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ @@ -111,8 +113,10 @@ enum rq_flag_bits { }; #define REQ_RW (1 << __REQ_RW) +#define REQ_FAILFAST_DEV (1 << __REQ_FAILFAST_DEV) +#define REQ_FAILFAST_TRANSPORT (1 << __REQ_FAILFAST_TRANSPORT) +#define REQ_FAILFAST_DRIVER (1 << __REQ_FAILFAST_DRIVER) #define REQ_DISCARD (1 << __REQ_DISCARD) -#define REQ_FAILFAST (1 << __REQ_FAILFAST) #define REQ_SORTED (1 << __REQ_SORTED) #define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER) #define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) @@ -560,7 +564,12 @@ enum { #define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL) #define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE) -#define blk_noretry_request(rq) ((rq)->cmd_flags & REQ_FAILFAST) +#define blk_failfast_dev(rq) ((rq)->cmd_flags & REQ_FAILFAST_DEV) +#define blk_failfast_transport(rq) ((rq)->cmd_flags & REQ_FAILFAST_TRANSPORT) +#define blk_failfast_driver(rq) ((rq)->cmd_flags & REQ_FAILFAST_DRIVER) +#define blk_noretry_request(rq) (blk_failfast_dev(rq) || \ + blk_failfast_transport(rq) || \ + blk_failfast_driver(rq)) #define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED) #define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) -- cgit v1.2.1 From e5bd7b54e93ef7151469a12b8c28d863b9f8a088 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 24 Sep 2008 11:46:10 -0500 Subject: [SCSI] libiscsi: Support drivers initiating session removal If the driver knows when hardware is removed like with cxgb3i, bnx2i, qla4xxx and iser then we will want to remove the sessions/devices that are bound to that device before removing the host. cxgb3i and in the future bnx2i will remove the host and that will remove all the sessions on the hba. iser can call iscsi_kill_session when it gets an event that indicates that a hca is removed. And when qla4xxx is hooked in to the lib (it is only hooked into the class right now) it can call iscsi remove host like the partial offload card drivers. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/iscsi_if.h | 1 + include/scsi/libiscsi.h | 13 +++++++++++++ include/scsi/scsi_transport_iscsi.h | 3 ++- 3 files changed, 16 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 16be12f1cbe8..f274d248a91f 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -213,6 +213,7 @@ enum iscsi_err { ISCSI_ERR_DATA_DGST = ISCSI_ERR_BASE + 15, ISCSI_ERR_PARAM_NOT_FOUND = ISCSI_ERR_BASE + 16, ISCSI_ERR_NO_SCSI_CMD = ISCSI_ERR_BASE + 17, + ISCSI_ERR_INVALID_HOST = ISCSI_ERR_BASE + 18, }; /* diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 5e75bb7f311c..7d8cd159f592 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -287,6 +287,11 @@ struct iscsi_session { struct iscsi_pool cmdpool; /* PDU's pool */ }; +enum { + ISCSI_HOST_SETUP, + ISCSI_HOST_REMOVED, +}; + struct iscsi_host { char *initiatorname; /* hw address or netdev iscsi connection is bound to */ @@ -295,6 +300,12 @@ struct iscsi_host { /* local address */ int local_port; char local_address[ISCSI_ADDRESS_BUF_LEN]; + + wait_queue_head_t session_removal_wq; + /* protects sessions and state */ + spinlock_t lock; + int num_sessions; + int state; }; /* @@ -351,6 +362,8 @@ extern void iscsi_conn_stop(struct iscsi_cls_conn *, int); extern int iscsi_conn_bind(struct iscsi_cls_session *, struct iscsi_cls_conn *, int); extern void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err); +extern void iscsi_session_failure(struct iscsi_cls_session *cls_session, + enum iscsi_err err); extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, char *buf); extern void iscsi_suspend_tx(struct iscsi_conn *conn); diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 8b6c91df4c7a..8749d4d8e244 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -135,7 +135,8 @@ extern int iscsi_unregister_transport(struct iscsi_transport *tt); /* * control plane upcalls */ -extern void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error); +extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, + enum iscsi_err error); extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, char *data, uint32_t data_size); -- cgit v1.2.1 From 21536062d98938dfcfbae593a26c154e359749dc Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 24 Sep 2008 11:46:11 -0500 Subject: [SCSI] iscsi class: fix endpoint id handling Some endpoint code was using unsigned int and some was using uint64_t. This converts it all to uint64_t. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/scsi_transport_iscsi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 8749d4d8e244..c667cc396545 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -208,7 +208,7 @@ extern void iscsi_host_for_each_session(struct Scsi_Host *shost, struct iscsi_endpoint { void *dd_data; /* LLD private data */ struct device dev; - unsigned int id; + uint64_t id; }; /* -- cgit v1.2.1 From 8e12452549ba2dfa17db97bc495172fac221a7ab Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 24 Sep 2008 11:46:12 -0500 Subject: [SCSI] libiscsi: rename host reset to target reset I had this in my patchset to add target reset support, but it got dropped due to patching conflicts. This initial patch just renames the function and users. We are actually just dropping the session, and so this does not have anything to do with the host exactly. It does for software iscsi because we allocate a host per session, but for cxgb3i this makes no sense. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/libiscsi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 7d8cd159f592..61e53f14f7e1 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -313,7 +313,7 @@ struct iscsi_host { */ extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth); extern int iscsi_eh_abort(struct scsi_cmnd *sc); -extern int iscsi_eh_host_reset(struct scsi_cmnd *sc); +extern int iscsi_eh_target_reset(struct scsi_cmnd *sc); extern int iscsi_eh_device_reset(struct scsi_cmnd *sc); extern int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)); -- cgit v1.2.1 From 6f481e3cefeb33094e87af176587e6a3027f104e Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 24 Sep 2008 11:46:13 -0500 Subject: [SCSI] iscsi_tcp: return a descriptive error value during connection errors The segment->done functions return a iscsi error value which gives a lot more info than conn failed, so this patch has us return that value. I also add a new one for xmit failures. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/iscsi_if.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index f274d248a91f..0c9514de5df7 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -214,6 +214,7 @@ enum iscsi_err { ISCSI_ERR_PARAM_NOT_FOUND = ISCSI_ERR_BASE + 16, ISCSI_ERR_NO_SCSI_CMD = ISCSI_ERR_BASE + 17, ISCSI_ERR_INVALID_HOST = ISCSI_ERR_BASE + 18, + ISCSI_ERR_XMIT_FAILED = ISCSI_ERR_BASE + 19, }; /* -- cgit v1.2.1 From 69fd3a8d098faf41a04930afa83757c0555ee360 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 12 Oct 2008 16:18:36 +0200 Subject: [MTD] remove unused mtd parameter in of_mtd_parse_partitions() Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: David Woodhouse --- include/linux/mtd/partitions.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 5014f7a9f5df..c92b4d439609 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -73,7 +73,6 @@ struct device; struct device_node; int __devinit of_mtd_parse_partitions(struct device *dev, - struct mtd_info *mtd, struct device_node *node, struct mtd_partition **pparts); -- cgit v1.2.1 From 97e1c18e8d17bd87e1e383b2e9d9fc740332c8e2 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Fri, 18 Jul 2008 12:16:16 -0400 Subject: tracing: Kernel Tracepoints Implementation of kernel tracepoints. Inspired from the Linux Kernel Markers. Allows complete typing verification by declaring both tracing statement inline functions and probe registration/unregistration static inline functions within the same macro "DEFINE_TRACE". No format string is required. See the tracepoint Documentation and Samples patches for usage examples. Taken from the documentation patch : "A tracepoint placed in code provides a hook to call a function (probe) that you can provide at runtime. A tracepoint can be "on" (a probe is connected to it) or "off" (no probe is attached). When a tracepoint is "off" it has no effect, except for adding a tiny time penalty (checking a condition for a branch) and space penalty (adding a few bytes for the function call at the end of the instrumented function and adds a data structure in a separate section). When a tracepoint is "on", the function you provide is called each time the tracepoint is executed, in the execution context of the caller. When the function provided ends its execution, it returns to the caller (continuing from the tracepoint site). You can put tracepoints at important locations in the code. They are lightweight hooks that can pass an arbitrary number of parameters, which prototypes are described in a tracepoint declaration placed in a header file." Addition and removal of tracepoints is synchronized by RCU using the scheduler (and preempt_disable) as guarantees to find a quiescent state (this is really RCU "classic"). The update side uses rcu_barrier_sched() with call_rcu_sched() and the read/execute side uses "preempt_disable()/preempt_enable()". We make sure the previous array containing probes, which has been scheduled for deletion by the rcu callback, is indeed freed before we proceed to the next update. It therefore limits the rate of modification of a single tracepoint to one update per RCU period. The objective here is to permit fast batch add/removal of probes on _different_ tracepoints. Changelog : - Use #name ":" #proto as string to identify the tracepoint in the tracepoint table. This will make sure not type mismatch happens due to connexion of a probe with the wrong type to a tracepoint declared with the same name in a different header. - Add tracepoint_entry_free_old. - Change __TO_TRACE to get rid of the 'i' iterator. Masami Hiramatsu : Tested on x86-64. Performance impact of a tracepoint : same as markers, except that it adds about 70 bytes of instructions in an unlikely branch of each instrumented function (the for loop, the stack setup and the function call). It currently adds a memory read, a test and a conditional branch at the instrumentation site (in the hot path). Immediate values will eventually change this into a load immediate, test and branch, which removes the memory read which will make the i-cache impact smaller (changing the memory read for a load immediate removes 3-4 bytes per site on x86_32 (depending on mov prefixes), or 7-8 bytes on x86_64, it also saves the d-cache hit). About the performance impact of tracepoints (which is comparable to markers), even without immediate values optimizations, tests done by Hideo Aoki on ia64 show no regression. His test case was using hackbench on a kernel where scheduler instrumentation (about 5 events in code scheduler code) was added. Quoting Hideo Aoki about Markers : I evaluated overhead of kernel marker using linux-2.6-sched-fixes git tree, which includes several markers for LTTng, using an ia64 server. While the immediate trace mark feature isn't implemented on ia64, there is no major performance regression. So, I think that we don't have any issues to propose merging marker point patches into Linus's tree from the viewpoint of performance impact. I prepared two kernels to evaluate. The first one was compiled without CONFIG_MARKERS. The second one was enabled CONFIG_MARKERS. I downloaded the original hackbench from the following URL: http://devresources.linux-foundation.org/craiger/hackbench/src/hackbench.c I ran hackbench 5 times in each condition and calculated the average and difference between the kernels. The parameter of hackbench: every 50 from 50 to 800 The number of CPUs of the server: 2, 4, and 8 Below is the results. As you can see, major performance regression wasn't found in any case. Even if number of processes increases, differences between marker-enabled kernel and marker- disabled kernel doesn't increase. Moreover, if number of CPUs increases, the differences doesn't increase either. Curiously, marker-enabled kernel is better than marker-disabled kernel in more than half cases, although I guess it comes from the difference of memory access pattern. * 2 CPUs Number of | without | with | diff | diff | processes | Marker [Sec] | Marker [Sec] | [Sec] | [%] | -------------------------------------------------------------- 50 | 4.811 | 4.872 | +0.061 | +1.27 | 100 | 9.854 | 10.309 | +0.454 | +4.61 | 150 | 15.602 | 15.040 | -0.562 | -3.6 | 200 | 20.489 | 20.380 | -0.109 | -0.53 | 250 | 25.798 | 25.652 | -0.146 | -0.56 | 300 | 31.260 | 30.797 | -0.463 | -1.48 | 350 | 36.121 | 35.770 | -0.351 | -0.97 | 400 | 42.288 | 42.102 | -0.186 | -0.44 | 450 | 47.778 | 47.253 | -0.526 | -1.1 | 500 | 51.953 | 52.278 | +0.325 | +0.63 | 550 | 58.401 | 57.700 | -0.701 | -1.2 | 600 | 63.334 | 63.222 | -0.112 | -0.18 | 650 | 68.816 | 68.511 | -0.306 | -0.44 | 700 | 74.667 | 74.088 | -0.579 | -0.78 | 750 | 78.612 | 79.582 | +0.970 | +1.23 | 800 | 85.431 | 85.263 | -0.168 | -0.2 | -------------------------------------------------------------- * 4 CPUs Number of | without | with | diff | diff | processes | Marker [Sec] | Marker [Sec] | [Sec] | [%] | -------------------------------------------------------------- 50 | 2.586 | 2.584 | -0.003 | -0.1 | 100 | 5.254 | 5.283 | +0.030 | +0.56 | 150 | 8.012 | 8.074 | +0.061 | +0.76 | 200 | 11.172 | 11.000 | -0.172 | -1.54 | 250 | 13.917 | 14.036 | +0.119 | +0.86 | 300 | 16.905 | 16.543 | -0.362 | -2.14 | 350 | 19.901 | 20.036 | +0.135 | +0.68 | 400 | 22.908 | 23.094 | +0.186 | +0.81 | 450 | 26.273 | 26.101 | -0.172 | -0.66 | 500 | 29.554 | 29.092 | -0.461 | -1.56 | 550 | 32.377 | 32.274 | -0.103 | -0.32 | 600 | 35.855 | 35.322 | -0.533 | -1.49 | 650 | 39.192 | 38.388 | -0.804 | -2.05 | 700 | 41.744 | 41.719 | -0.025 | -0.06 | 750 | 45.016 | 44.496 | -0.520 | -1.16 | 800 | 48.212 | 47.603 | -0.609 | -1.26 | -------------------------------------------------------------- * 8 CPUs Number of | without | with | diff | diff | processes | Marker [Sec] | Marker [Sec] | [Sec] | [%] | -------------------------------------------------------------- 50 | 2.094 | 2.072 | -0.022 | -1.07 | 100 | 4.162 | 4.273 | +0.111 | +2.66 | 150 | 6.485 | 6.540 | +0.055 | +0.84 | 200 | 8.556 | 8.478 | -0.078 | -0.91 | 250 | 10.458 | 10.258 | -0.200 | -1.91 | 300 | 12.425 | 12.750 | +0.325 | +2.62 | 350 | 14.807 | 14.839 | +0.032 | +0.22 | 400 | 16.801 | 16.959 | +0.158 | +0.94 | 450 | 19.478 | 19.009 | -0.470 | -2.41 | 500 | 21.296 | 21.504 | +0.208 | +0.98 | 550 | 23.842 | 23.979 | +0.137 | +0.57 | 600 | 26.309 | 26.111 | -0.198 | -0.75 | 650 | 28.705 | 28.446 | -0.259 | -0.9 | 700 | 31.233 | 31.394 | +0.161 | +0.52 | 750 | 34.064 | 33.720 | -0.344 | -1.01 | 800 | 36.320 | 36.114 | -0.206 | -0.57 | -------------------------------------------------------------- Signed-off-by: Mathieu Desnoyers Acked-by: Masami Hiramatsu Acked-by: 'Peter Zijlstra' Signed-off-by: Ingo Molnar --- include/asm-generic/vmlinux.lds.h | 6 +- include/linux/module.h | 17 +++++ include/linux/tracepoint.h | 127 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+), 1 deletion(-) create mode 100644 include/linux/tracepoint.h (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7440a0dceddb..3d8e472a09c8 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -52,7 +52,10 @@ . = ALIGN(8); \ VMLINUX_SYMBOL(__start___markers) = .; \ *(__markers) \ - VMLINUX_SYMBOL(__stop___markers) = .; + VMLINUX_SYMBOL(__stop___markers) = .; \ + VMLINUX_SYMBOL(__start___tracepoints) = .; \ + *(__tracepoints) \ + VMLINUX_SYMBOL(__stop___tracepoints) = .; #define RO_DATA(align) \ . = ALIGN((align)); \ @@ -61,6 +64,7 @@ *(.rodata) *(.rodata.*) \ *(__vermagic) /* Kernel version magic */ \ *(__markers_strings) /* Markers: strings */ \ + *(__tracepoints_strings)/* Tracepoints: strings */ \ } \ \ .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \ diff --git a/include/linux/module.h b/include/linux/module.h index 68e09557c951..8b6113503863 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -331,6 +332,10 @@ struct module struct marker *markers; unsigned int num_markers; #endif +#ifdef CONFIG_TRACEPOINTS + struct tracepoint *tracepoints; + unsigned int num_tracepoints; +#endif #ifdef CONFIG_MODULE_UNLOAD /* What modules depend on me? */ @@ -454,6 +459,9 @@ extern void print_modules(void); extern void module_update_markers(void); +extern void module_update_tracepoints(void); +extern int module_get_iter_tracepoints(struct tracepoint_iter *iter); + #else /* !CONFIG_MODULES... */ #define EXPORT_SYMBOL(sym) #define EXPORT_SYMBOL_GPL(sym) @@ -558,6 +566,15 @@ static inline void module_update_markers(void) { } +static inline void module_update_tracepoints(void) +{ +} + +static inline int module_get_iter_tracepoints(struct tracepoint_iter *iter) +{ + return 0; +} + #endif /* CONFIG_MODULES */ struct device_driver; diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h new file mode 100644 index 000000000000..e623a6fca5c3 --- /dev/null +++ b/include/linux/tracepoint.h @@ -0,0 +1,127 @@ +#ifndef _LINUX_TRACEPOINT_H +#define _LINUX_TRACEPOINT_H + +/* + * Kernel Tracepoint API. + * + * See Documentation/tracepoint.txt. + * + * (C) Copyright 2008 Mathieu Desnoyers + * + * Heavily inspired from the Linux Kernel Markers. + * + * This file is released under the GPLv2. + * See the file COPYING for more details. + */ + +#include +#include + +struct module; +struct tracepoint; + +struct tracepoint { + const char *name; /* Tracepoint name */ + int state; /* State. */ + void **funcs; +} __attribute__((aligned(8))); + + +#define TPPROTO(args...) args +#define TPARGS(args...) args + +#ifdef CONFIG_TRACEPOINTS + +/* + * it_func[0] is never NULL because there is at least one element in the array + * when the array itself is non NULL. + */ +#define __DO_TRACE(tp, proto, args) \ + do { \ + void **it_func; \ + \ + rcu_read_lock_sched(); \ + it_func = rcu_dereference((tp)->funcs); \ + if (it_func) { \ + do { \ + ((void(*)(proto))(*it_func))(args); \ + } while (*(++it_func)); \ + } \ + rcu_read_unlock_sched(); \ + } while (0) + +/* + * Make sure the alignment of the structure in the __tracepoints section will + * not add unwanted padding between the beginning of the section and the + * structure. Force alignment to the same alignment as the section start. + */ +#define DEFINE_TRACE(name, proto, args) \ + static inline void trace_##name(proto) \ + { \ + static const char __tpstrtab_##name[] \ + __attribute__((section("__tracepoints_strings"))) \ + = #name ":" #proto; \ + static struct tracepoint __tracepoint_##name \ + __attribute__((section("__tracepoints"), aligned(8))) = \ + { __tpstrtab_##name, 0, NULL }; \ + if (unlikely(__tracepoint_##name.state)) \ + __DO_TRACE(&__tracepoint_##name, \ + TPPROTO(proto), TPARGS(args)); \ + } \ + static inline int register_trace_##name(void (*probe)(proto)) \ + { \ + return tracepoint_probe_register(#name ":" #proto, \ + (void *)probe); \ + } \ + static inline void unregister_trace_##name(void (*probe)(proto))\ + { \ + tracepoint_probe_unregister(#name ":" #proto, \ + (void *)probe); \ + } + +extern void tracepoint_update_probe_range(struct tracepoint *begin, + struct tracepoint *end); + +#else /* !CONFIG_TRACEPOINTS */ +#define DEFINE_TRACE(name, proto, args) \ + static inline void _do_trace_##name(struct tracepoint *tp, proto) \ + { } \ + static inline void trace_##name(proto) \ + { } \ + static inline int register_trace_##name(void (*probe)(proto)) \ + { \ + return -ENOSYS; \ + } \ + static inline void unregister_trace_##name(void (*probe)(proto))\ + { } + +static inline void tracepoint_update_probe_range(struct tracepoint *begin, + struct tracepoint *end) +{ } +#endif /* CONFIG_TRACEPOINTS */ + +/* + * Connect a probe to a tracepoint. + * Internal API, should not be used directly. + */ +extern int tracepoint_probe_register(const char *name, void *probe); + +/* + * Disconnect a probe from a tracepoint. + * Internal API, should not be used directly. + */ +extern int tracepoint_probe_unregister(const char *name, void *probe); + +struct tracepoint_iter { + struct module *module; + struct tracepoint *tracepoint; +}; + +extern void tracepoint_iter_start(struct tracepoint_iter *iter); +extern void tracepoint_iter_next(struct tracepoint_iter *iter); +extern void tracepoint_iter_stop(struct tracepoint_iter *iter); +extern void tracepoint_iter_reset(struct tracepoint_iter *iter); +extern int tracepoint_get_iter_range(struct tracepoint **tracepoint, + struct tracepoint *begin, struct tracepoint *end); + +#endif -- cgit v1.2.1 From 0a16b6075843325dc402edf80c1662838b929aff Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Fri, 18 Jul 2008 12:16:17 -0400 Subject: tracing, sched: LTTng instrumentation - scheduler Instrument the scheduler activity (sched_switch, migration, wakeups, wait for a task, signal delivery) and process/thread creation/destruction (fork, exit, kthread stop). Actually, kthread creation is not instrumented in this patch because it is architecture dependent. It allows to connect tracers such as ftrace which detects scheduling latencies, good/bad scheduler decisions. Tools like LTTng can export this scheduler information along with instrumentation of the rest of the kernel activity to perform post-mortem analysis on the scheduler activity. About the performance impact of tracepoints (which is comparable to markers), even without immediate values optimizations, tests done by Hideo Aoki on ia64 show no regression. His test case was using hackbench on a kernel where scheduler instrumentation (about 5 events in code scheduler code) was added. See the "Tracepoints" patch header for performance result detail. Changelog : - Change instrumentation location and parameter to match ftrace instrumentation, previously done with kernel markers. [ mingo@elte.hu: conflict resolutions ] Signed-off-by: Mathieu Desnoyers Acked-by: 'Peter Zijlstra' Signed-off-by: Ingo Molnar --- include/trace/sched.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 include/trace/sched.h (limited to 'include') diff --git a/include/trace/sched.h b/include/trace/sched.h new file mode 100644 index 000000000000..506ae1323656 --- /dev/null +++ b/include/trace/sched.h @@ -0,0 +1,45 @@ +#ifndef _TRACE_SCHED_H +#define _TRACE_SCHED_H + +#include +#include + +DEFINE_TRACE(sched_kthread_stop, + TPPROTO(struct task_struct *t), + TPARGS(t)); +DEFINE_TRACE(sched_kthread_stop_ret, + TPPROTO(int ret), + TPARGS(ret)); +DEFINE_TRACE(sched_wait_task, + TPPROTO(struct rq *rq, struct task_struct *p), + TPARGS(rq, p)); +DEFINE_TRACE(sched_wakeup, + TPPROTO(struct rq *rq, struct task_struct *p), + TPARGS(rq, p)); +DEFINE_TRACE(sched_wakeup_new, + TPPROTO(struct rq *rq, struct task_struct *p), + TPARGS(rq, p)); +DEFINE_TRACE(sched_switch, + TPPROTO(struct rq *rq, struct task_struct *prev, + struct task_struct *next), + TPARGS(rq, prev, next)); +DEFINE_TRACE(sched_migrate_task, + TPPROTO(struct rq *rq, struct task_struct *p, int dest_cpu), + TPARGS(rq, p, dest_cpu)); +DEFINE_TRACE(sched_process_free, + TPPROTO(struct task_struct *p), + TPARGS(p)); +DEFINE_TRACE(sched_process_exit, + TPPROTO(struct task_struct *p), + TPARGS(p)); +DEFINE_TRACE(sched_process_wait, + TPPROTO(struct pid *pid), + TPARGS(pid)); +DEFINE_TRACE(sched_process_fork, + TPPROTO(struct task_struct *parent, struct task_struct *child), + TPARGS(parent, child)); +DEFINE_TRACE(sched_signal_send, + TPPROTO(int sig, struct task_struct *p), + TPARGS(sig, p)); + +#endif -- cgit v1.2.1 From cf569a932217b97e2fc2c48aa597fe29519a0cff Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 23 Jul 2008 13:48:22 +0200 Subject: sched: clean up tracepoints make it a bit more structured hence more readable. Signed-off-by: Ingo Molnar --- include/trace/sched.h | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/trace/sched.h b/include/trace/sched.h index 506ae1323656..ad47369d01b5 100644 --- a/include/trace/sched.h +++ b/include/trace/sched.h @@ -6,40 +6,51 @@ DEFINE_TRACE(sched_kthread_stop, TPPROTO(struct task_struct *t), - TPARGS(t)); + TPARGS(t)); + DEFINE_TRACE(sched_kthread_stop_ret, TPPROTO(int ret), - TPARGS(ret)); + TPARGS(ret)); + DEFINE_TRACE(sched_wait_task, TPPROTO(struct rq *rq, struct task_struct *p), - TPARGS(rq, p)); + TPARGS(rq, p)); + DEFINE_TRACE(sched_wakeup, TPPROTO(struct rq *rq, struct task_struct *p), - TPARGS(rq, p)); + TPARGS(rq, p)); + DEFINE_TRACE(sched_wakeup_new, TPPROTO(struct rq *rq, struct task_struct *p), - TPARGS(rq, p)); + TPARGS(rq, p)); + DEFINE_TRACE(sched_switch, TPPROTO(struct rq *rq, struct task_struct *prev, struct task_struct *next), - TPARGS(rq, prev, next)); + TPARGS(rq, prev, next)); + DEFINE_TRACE(sched_migrate_task, TPPROTO(struct rq *rq, struct task_struct *p, int dest_cpu), - TPARGS(rq, p, dest_cpu)); + TPARGS(rq, p, dest_cpu)); + DEFINE_TRACE(sched_process_free, TPPROTO(struct task_struct *p), - TPARGS(p)); + TPARGS(p)); + DEFINE_TRACE(sched_process_exit, TPPROTO(struct task_struct *p), - TPARGS(p)); + TPARGS(p)); + DEFINE_TRACE(sched_process_wait, TPPROTO(struct pid *pid), - TPARGS(pid)); + TPARGS(pid)); + DEFINE_TRACE(sched_process_fork, TPPROTO(struct task_struct *parent, struct task_struct *child), - TPARGS(parent, child)); + TPARGS(parent, child)); + DEFINE_TRACE(sched_signal_send, TPPROTO(int sig, struct task_struct *p), - TPARGS(sig, p)); + TPARGS(sig, p)); #endif -- cgit v1.2.1 From 36dcd67ae994fece615b7c700958d215e884b9ae Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 29 Jul 2008 12:00:59 +0200 Subject: ftrace: ignore functions that cannot be kprobe-ed kprobes already has an extensive list of annotations for functions that should not be instrumented. Add notrace annotations to these functions as well. This is particularly useful for functions called by the NMI path. Signed-off-by: Ingo Molnar --- include/linux/kprobes.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 0be7795655fa..497b1d1f7a05 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -29,6 +29,7 @@ * and Prasanna S Panchamukhi * added function-return probes. */ +#include #include #include #include @@ -47,7 +48,7 @@ #define KPROBE_HIT_SSDONE 0x00000008 /* Attach to insert probes on any functions which should be ignored*/ -#define __kprobes __attribute__((__section__(".kprobes.text"))) +#define __kprobes __attribute__((__section__(".kprobes.text"))) notrace struct kprobe; struct pt_regs; @@ -256,7 +257,7 @@ void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head); #else /* CONFIG_KPROBES */ -#define __kprobes /**/ +#define __kprobes notrace struct jprobe; struct kretprobe; -- cgit v1.2.1 From 8da3821ba5634497da63d58a69e24a97697c4a2b Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 15:45:07 -0400 Subject: ftrace: create __mcount_loc section This patch creates a section in the kernel called "__mcount_loc". This will hold a list of pointers to the mcount relocation for each call site of mcount. For example: objdump -dr init/main.o [...] Disassembly of section .text: 0000000000000000 : 0: 55 push %rbp [...] 000000000000017b : 17b: 55 push %rbp 17c: 48 89 e5 mov %rsp,%rbp 17f: 53 push %rbx 180: 48 83 ec 08 sub $0x8,%rsp 184: e8 00 00 00 00 callq 189 185: R_X86_64_PC32 mcount+0xfffffffffffffffc [...] We will add a section to point to each function call. .section __mcount_loc,"a",@progbits [...] .quad .text + 0x185 [...] The offset to of the mcount call site in init_post is an offset from the start of the section, and not the start of the function init_post. The mcount relocation is at the call site 0x185 from the start of the .text section. .text + 0x185 == init_post + 0xa We need a way to add this __mcount_loc section in a way that we do not lose the relocations after final link. The .text section here will be attached to all other .text sections after final link and the offsets will be meaningless. We need to keep track of where these .text sections are. To do this, we use the start of the first function in the section. do_one_initcall. We can make a tmp.s file with this function as a reference to the start of the .text section. .section __mcount_loc,"a",@progbits [...] .quad do_one_initcall + 0x185 [...] Then we can compile the tmp.s into a tmp.o gcc -c tmp.s -o tmp.o And link it into back into main.o. ld -r main.o tmp.o -o tmp_main.o mv tmp_main.o main.o But we have a problem. What happens if the first function in a section is not exported, and is a static function. The linker will not let the tmp.o use it. This case exists in main.o as well. Disassembly of section .init.text: 0000000000000000 : 0: 55 push %rbp 1: 48 89 e5 mov %rsp,%rbp 4: e8 00 00 00 00 callq 9 5: R_X86_64_PC32 mcount+0xfffffffffffffffc The first function in .init.text is a static function. 00000000000000a8 t __setup_set_reset_devices 000000000000105f t __setup_str_set_reset_devices 0000000000000000 t set_reset_devices The lowercase 't' means that set_reset_devices is local and is not exported. If we simply try to link the tmp.o with the set_reset_devices we end up with two symbols: one local and one global. .section __mcount_loc,"a",@progbits .quad set_reset_devices + 0x10 00000000000000a8 t __setup_set_reset_devices 000000000000105f t __setup_str_set_reset_devices 0000000000000000 t set_reset_devices U set_reset_devices We still have an undefined reference to set_reset_devices, and if we try to compile the kernel, we will end up with an undefined reference to set_reset_devices, or even worst, it could be exported someplace else, and then we will have a reference to the wrong location. To handle this case, we make an intermediate step using objcopy. We convert set_reset_devices into a global exported symbol before linking it with tmp.o and set it back afterwards. 00000000000000a8 t __setup_set_reset_devices 000000000000105f t __setup_str_set_reset_devices 0000000000000000 T set_reset_devices 00000000000000a8 t __setup_set_reset_devices 000000000000105f t __setup_str_set_reset_devices 0000000000000000 T set_reset_devices 00000000000000a8 t __setup_set_reset_devices 000000000000105f t __setup_str_set_reset_devices 0000000000000000 t set_reset_devices Now we have a section in main.o called __mcount_loc that we can place somewhere in the kernel using vmlinux.ld.S and access it to convert all these locations that call mcount into nops before starting SMP and thus, eliminating the need to do this with kstop_machine. Note, A well documented perl script (scripts/recordmcount.pl) is used to do all this in one location. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/asm-generic/vmlinux.lds.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 3d8e472a09c8..838d9b2a0da1 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -37,6 +37,13 @@ #define MEM_DISCARD(sec) *(.mem##sec) #endif +#ifdef CONFIG_FTRACE_MCOUNT_RECORD +#define MCOUNT_REC() VMLINUX_SYMBOL(__start_mcount_loc) = .; \ + *(__mcount_loc) \ + VMLINUX_SYMBOL(__stop_mcount_loc) = .; +#else +#define MCOUNT_REC() +#endif /* .data section */ #define DATA_DATA \ @@ -192,6 +199,7 @@ /* __*init sections */ \ __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \ *(.ref.rodata) \ + MCOUNT_REC() \ DEV_KEEP(init.rodata) \ DEV_KEEP(exit.rodata) \ CPU_KEEP(init.rodata) \ -- cgit v1.2.1 From 68bf21aa15c85d2e9b623dcda2b1ed8893275fa1 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 15:45:08 -0400 Subject: ftrace: mcount call site on boot nops core This is the infrastructure to the converting the mcount call sites recorded by the __mcount_loc section into nops on boot. It also allows for using these sites to enable tracing as normal. When the __mcount_loc section is used, the "ftraced" kernel thread is disabled. This uses the current infrastructure to record the mcount call sites as well as convert them to nops. The mcount function is kept as a stub on boot up and not converted to the ftrace_record_ip function. We use the ftrace_record_ip to only record from the table. This patch does not handle modules. That comes with a later patch. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/asm-x86/ftrace.h | 10 ++++++++++ include/linux/ftrace.h | 6 ++++++ 2 files changed, 16 insertions(+) (limited to 'include') diff --git a/include/asm-x86/ftrace.h b/include/asm-x86/ftrace.h index be0e004ad148..1bb6f9bbe1ab 100644 --- a/include/asm-x86/ftrace.h +++ b/include/asm-x86/ftrace.h @@ -7,6 +7,16 @@ #ifndef __ASSEMBLY__ extern void mcount(void); + +static inline unsigned long ftrace_call_adjust(unsigned long addr) +{ + /* + * call mcount is "e8 <4 byte offset>" + * The addr points to the 4 byte offset and the caller of this + * function wants the pointer to e8. Simply subtract one. + */ + return addr - 1; +} #endif #endif /* CONFIG_FTRACE */ diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index bb384068272e..d4d6ab453b78 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -162,4 +162,10 @@ static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } #endif +#ifdef CONFIG_FTRACE_MCOUNT_RECORD +extern void ftrace_init(void); +#else +static inline void ftrace_init(void) { } +#endif + #endif /* _LINUX_FTRACE_H */ -- cgit v1.2.1 From 90d595fe5ca4b685465c068907e6e554760abea8 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 15:45:09 -0400 Subject: ftrace: enable mcount recording for modules This patch enables the loading of the __mcount_section of modules and changing all the callers of mcount into nops. The modification is done before the init_module function is called, so again, we do not need to use kstop_machine to make these changes. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index d4d6ab453b78..4936489f9ed8 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -164,8 +164,11 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } #ifdef CONFIG_FTRACE_MCOUNT_RECORD extern void ftrace_init(void); +extern void ftrace_init_module(unsigned long *start, unsigned long *end); #else static inline void ftrace_init(void) { } +static inline void +ftrace_init_module(unsigned long *start, unsigned long *end) { } #endif #endif /* _LINUX_FTRACE_H */ -- cgit v1.2.1 From 29e71abf56cebc5c5a4e184a6eb4360cc58554ad Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 15:45:10 -0400 Subject: ftrace: rebuild everything on change to FTRACE_MCOUNT_RECORD When enabling or disabling CONFIG_FTRACE_MCOUNT_RECORD, we want a full kernel compile to handle the adding of the __mcount_loc sections. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/kernel.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 75d81f157d2e..ecce4a4ccd5f 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -486,4 +486,9 @@ struct sysinfo { #define NUMA_BUILD 0 #endif +/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ +#ifdef CONFIG_FTRACE_MCOUNT_RECORD +# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD +#endif + #endif -- cgit v1.2.1 From 28614889bcb2558a47d02d52394b7fd9795a9547 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 22:47:18 -0400 Subject: ftrace: move notrace to compiler.h The notrace define belongs in compiler.h so that it can be used in init.h Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/compiler.h | 2 ++ include/linux/linkage.h | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 8322141ee480..98115d9d04da 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -44,6 +44,8 @@ extern void __chk_io_ptr(const volatile void __iomem *); # error Sorry, your compiler is too old/not recognized. #endif +#define notrace __attribute__((no_instrument_function)) + /* Intel compiler defines __GNUC__. So we will overwrite implementations * coming from above header files here */ diff --git a/include/linux/linkage.h b/include/linux/linkage.h index 56ba37394656..9fd1f859021b 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -4,8 +4,6 @@ #include #include -#define notrace __attribute__((no_instrument_function)) - #ifdef __cplusplus #define CPP_ASMLINKAGE extern "C" #else -- cgit v1.2.1 From fed1939c64d2288938fdc1c367d49082da65e195 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Aug 2008 22:47:19 -0400 Subject: ftrace: remove old pointers to mcount When a mcount pointer is recorded into a table, it is used to add or remove calls to mcount (replacing them with nops). If the code is removed via removing a module, the pointers still exist. At modifying the code a check is always made to make sure the code being replaced is the code expected. In-other-words, the code being replaced is compared to what it is expected to be before being replaced. There is a very small chance that the code being replaced just happens to look like code that calls mcount (very small since the call to mcount is relative). To remove this chance, this patch adds ftrace_release to allow module unloading to remove the pointers to mcount within the module. Another change for init calls is made to not trace calls marked with __init. The tracing can not be started until after init is done anyway. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 2 ++ include/linux/init.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 4936489f9ed8..6b232a2460c0 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -165,10 +165,12 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } #ifdef CONFIG_FTRACE_MCOUNT_RECORD extern void ftrace_init(void); extern void ftrace_init_module(unsigned long *start, unsigned long *end); +extern void ftrace_release(void *start, unsigned long size); #else static inline void ftrace_init(void) { } static inline void ftrace_init_module(unsigned long *start, unsigned long *end) { } +static inline void ftrace_release(void *start, unsigned long size) { } #endif #endif /* _LINUX_FTRACE_H */ diff --git a/include/linux/init.h b/include/linux/init.h index 93538b696e3d..27f61f6b3cb9 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -40,7 +40,7 @@ /* These are for everybody (although not all archs will actually discard it in modules) */ -#define __init __section(.init.text) __cold +#define __init __section(.init.text) __cold notrace #define __initdata __section(.init.data) #define __initconst __section(.init.rodata) #define __exitdata __section(.exit.data) -- cgit v1.2.1 From dd0e545f061f90099a3dcc13aa77e29c6295cf23 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 1 Aug 2008 12:26:41 -0400 Subject: ftrace: printk formatting infrastructure This patch adds a feature that can help kernel developers debug their code using ftrace. int ftrace_printk(const char *fmt, ...); This records into the ftrace buffer using printf formatting. The entry size in the buffers are still a fixed length. A new type has been added that allows for more entries to be used for a single recording. The start of the print is still the same as the other entries. It returns the number of characters written to the ftrace buffer. For example: Having a module with the following code: static int __init ftrace_print_test(void) { ftrace_printk("jiffies are %ld\n", jiffies); return 0; } Gives me: insmod-5441 3...1 7569us : ftrace_print_test: jiffies are 4296626666 for the latency_trace file and: insmod-5441 [03] 1959.370498: ftrace_print_test jiffies are 4296626666 for the trace file. Note: Only the infrastructure should go into the kernel. It is to help facilitate debugging for other kernel developers. Calls to ftrace_printk is not intended to be left in the kernel, and should be frowned upon just like scattering printks around in the code. But having this easily at your fingertips helps the debugging go faster and bugs be solved quicker. Maybe later on, we can hook this with markers and have their printf format be sucked into ftrace output. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 6b232a2460c0..f53b975e32fa 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -157,9 +157,18 @@ static inline void __ftrace_enabled_restore(int enabled) #ifdef CONFIG_TRACING extern void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3); +# define ftrace_printk(x...) __ftrace_printk(_THIS_IP_, x) +extern int +__ftrace_printk(unsigned long ip, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); #else static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } +static inline int +ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0))) +{ + return 0; +} #endif #ifdef CONFIG_FTRACE_MCOUNT_RECORD @@ -173,4 +182,5 @@ ftrace_init_module(unsigned long *start, unsigned long *end) { } static inline void ftrace_release(void *start, unsigned long size) { } #endif + #endif /* _LINUX_FTRACE_H */ -- cgit v1.2.1 From 2f2c99dba2398ef7d9c21f7c793180a50e68b1f0 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 1 Aug 2008 16:45:49 -0400 Subject: ftrace: ftrace_printk doc moved Based on Randy Dunlap's suggestion, the ftrace_printk kernel-doc belongs with the ftrace_printk macro that should be used. Not with the __ftrace_printk internal function. Signed-off-by: Steven Rostedt Acked-by: Randy Dunlap Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index f53b975e32fa..018af16bce5c 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -157,7 +157,24 @@ static inline void __ftrace_enabled_restore(int enabled) #ifdef CONFIG_TRACING extern void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3); -# define ftrace_printk(x...) __ftrace_printk(_THIS_IP_, x) + +/** + * ftrace_printk - printf formatting in the ftrace buffer + * @fmt: the printf format for printing + * + * Note: __ftrace_printk is an internal function for ftrace_printk and + * the @ip is passed in via the ftrace_printk macro. + * + * This function allows a kernel developer to debug fast path sections + * that printk is not appropriate for. By scattering in various + * printk like tracing in the code, a developer can quickly see + * where problems are occurring. + * + * This is intended as a debugging tool for the developer only. + * Please refrain from leaving ftrace_printks scattered around in + * your code. + */ +# define ftrace_printk(fmt...) __ftrace_printk(_THIS_IP_, fmt) extern int __ftrace_printk(unsigned long ip, const char *fmt, ...) __attribute__ ((format (printf, 2, 3))); -- cgit v1.2.1 From 3f5a54e371ca20b119b73704f6c01b71295c1714 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 30 Jul 2008 22:36:46 -0400 Subject: ftrace: dump out ftrace buffers to console on panic At OLS I had a lot of interest to be able to have the ftrace buffers dumped on panic. Usually one would expect to uses kexec and examine the buffers after a new kernel is loaded. But sometimes the resources do not permit kdump and kexec, so having an option to still see the sequence of events up to the crash is very advantageous. This patch adds the option to have the ftrace buffers dumped to the console in the latency_trace format on a panic. When the option is set, the default entries per CPU buffer are lowered to 16384, since the writing to the serial (if that is the console) may take an awful long time otherwise. [ Changes since -v1: Got alpine to send correctly (as well as spell check working). Removed config option. Moved the static variables into ftrace_dump itself. Gave printk a log level. ] Signed-off-by: Steven Rostedt Cc: Peter Zijlstra Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 018af16bce5c..f7fb92045bf0 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -178,6 +178,7 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3); extern int __ftrace_printk(unsigned long ip, const char *fmt, ...) __attribute__ ((format (printf, 2, 3))); +extern void ftrace_dump(void); #else static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } @@ -186,6 +187,7 @@ ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0))) { return 0; } +static inline void ftrace_dump(void) { } #endif #ifdef CONFIG_FTRACE_MCOUNT_RECORD -- cgit v1.2.1 From 7b928c23fa3e9fa37d1d4ba52ba963f41ee5aae0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 15 Aug 2008 17:48:02 +0200 Subject: ftrace: build fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fix: In file included from init/main.c:65: include/linux/ftrace.h:166: error: expected ‘,' or ‘;' before ‘{' token make[1]: *** [init/main.o] Error 1 make: *** [init/main.o] Error 2 Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index f7fb92045bf0..ce929cb55435 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -183,7 +183,10 @@ extern void ftrace_dump(void); static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } static inline int -ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0))) +ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0))); + +static inline int +ftrace_printk(const char *fmt, ...) { return 0; } -- cgit v1.2.1 From c5131ad6c3cbe8f6674993e29a76cecf8deb4384 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 15 Aug 2008 18:22:09 +0200 Subject: ftrace: ftrace_kill_atomic() build fix fix: kernel/built-in.o: In function `ftrace_dump': (.text+0x2e2ea): undefined reference to `ftrace_kill_atomic' Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index ce929cb55435..36c439927ff1 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -36,6 +36,7 @@ extern void ftrace_stub(unsigned long a0, unsigned long a1); # define register_ftrace_function(ops) do { } while (0) # define unregister_ftrace_function(ops) do { } while (0) # define clear_ftrace_function(ops) do { } while (0) +static inline void ftrace_kill_atomic(void) { } #endif /* CONFIG_FTRACE */ #ifdef CONFIG_DYNAMIC_FTRACE -- cgit v1.2.1 From 3700273586ee6a58b95dd07d9f8a02db4a9b476f Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Mon, 18 Aug 2008 16:24:56 +0800 Subject: ftrace: fix incorrect comment style of __ftrace_enabled_save() This patch fixes incorrect comment style of __ftrace_enabled_save(). Signed-off-by: Huang Ying Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 36c439927ff1..8b4cf38c80d2 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -99,9 +99,11 @@ static inline void tracer_disable(void) #endif } -/* Ftrace disable/restore without lock. Some synchronization mechanism +/* + * Ftrace disable/restore without lock. Some synchronization mechanism * must be used to prevent ftrace_enabled to be changed between - * disable/restore. */ + * disable/restore. + */ static inline int __ftrace_enabled_save(void) { #ifdef CONFIG_FTRACE -- cgit v1.2.1 From c0719e5a4b1ccc04180b7a7b71095c9fb7131919 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Sat, 6 Sep 2008 01:06:03 -0400 Subject: ftrace: use ftrace_release for all dynamic ftrace functions ftrace_release is necessary for all uses of dynamic ftrace and not just the archs that have CONFIG_FTRACE_MCOUNT_RECORD defined. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 8b4cf38c80d2..5de9903645d5 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -77,8 +77,10 @@ extern void mcount_call(void); extern int skip_trace(unsigned long ip); -void ftrace_disable_daemon(void); -void ftrace_enable_daemon(void); +extern void ftrace_release(void *start, unsigned long size); + +extern void ftrace_disable_daemon(void); +extern void ftrace_enable_daemon(void); #else # define skip_trace(ip) ({ 0; }) @@ -86,6 +88,7 @@ void ftrace_enable_daemon(void); # define ftrace_set_filter(buf, len, reset) do { } while (0) # define ftrace_disable_daemon() do { } while (0) # define ftrace_enable_daemon() do { } while (0) +static inline void ftrace_release(void *start, unsigned long size) { } #endif /* CONFIG_DYNAMIC_FTRACE */ /* totally disable ftrace - can not re-enable after this */ @@ -199,12 +202,10 @@ static inline void ftrace_dump(void) { } #ifdef CONFIG_FTRACE_MCOUNT_RECORD extern void ftrace_init(void); extern void ftrace_init_module(unsigned long *start, unsigned long *end); -extern void ftrace_release(void *start, unsigned long size); #else static inline void ftrace_init(void) { } static inline void ftrace_init_module(unsigned long *start, unsigned long *end) { } -static inline void ftrace_release(void *start, unsigned long size) { } #endif -- cgit v1.2.1 From 9e57fb35d711331a9b1410c5c56ebeb3733428a0 Mon Sep 17 00:00:00 2001 From: Pekka Paalanen Date: Tue, 16 Sep 2008 22:00:34 +0300 Subject: x86 mmiotrace: implement mmiotrace_printk() Offer mmiotrace users a function to inject markers from inside the kernel. This depends on the trace_vprintk() patch. Signed-off-by: Pekka Paalanen Acked-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/mmiotrace.h | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h index 61d19e1b7a0b..60cc3bf5c538 100644 --- a/include/linux/mmiotrace.h +++ b/include/linux/mmiotrace.h @@ -34,11 +34,15 @@ extern void unregister_kmmio_probe(struct kmmio_probe *p); /* Called from page fault handler. */ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr); -/* Called from ioremap.c */ #ifdef CONFIG_MMIOTRACE +/* Called from ioremap.c */ extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size, void __iomem *addr); extern void mmiotrace_iounmap(volatile void __iomem *addr); + +/* For anyone to insert markers. Remember trailing newline. */ +extern int mmiotrace_printk(const char *fmt, ...) + __attribute__ ((format (printf, 1, 2))); #else static inline void mmiotrace_ioremap(resource_size_t offset, unsigned long size, void __iomem *addr) @@ -48,7 +52,15 @@ static inline void mmiotrace_ioremap(resource_size_t offset, static inline void mmiotrace_iounmap(volatile void __iomem *addr) { } -#endif /* CONFIG_MMIOTRACE_HOOKS */ + +static inline int mmiotrace_printk(const char *fmt, ...) + __attribute__ ((format (printf, 1, 0))); + +static inline int mmiotrace_printk(const char *fmt, ...) +{ + return 0; +} +#endif /* CONFIG_MMIOTRACE */ enum mm_io_opcode { MMIO_READ = 0x1, /* struct mmiotrace_rw */ @@ -81,5 +93,6 @@ extern void enable_mmiotrace(void); extern void disable_mmiotrace(void); extern void mmio_trace_rw(struct mmiotrace_rw *rw); extern void mmio_trace_mapping(struct mmiotrace_map *map); +extern int mmio_trace_printk(const char *fmt, va_list args); #endif /* MMIOTRACE_H */ -- cgit v1.2.1 From 4427414170a63331a9cc36b9598502c5cdfe453b Mon Sep 17 00:00:00 2001 From: Pekka Paalanen Date: Tue, 16 Sep 2008 22:03:56 +0300 Subject: mmiotrace: remove left-over marker cruft Signed-off-by: Pekka Paalanen Acked-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/mmiotrace.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h index 60cc3bf5c538..139d7c88d9c9 100644 --- a/include/linux/mmiotrace.h +++ b/include/linux/mmiotrace.h @@ -67,8 +67,7 @@ enum mm_io_opcode { MMIO_WRITE = 0x2, /* struct mmiotrace_rw */ MMIO_PROBE = 0x3, /* struct mmiotrace_map */ MMIO_UNPROBE = 0x4, /* struct mmiotrace_map */ - MMIO_MARKER = 0x5, /* raw char data */ - MMIO_UNKNOWN_OP = 0x6, /* struct mmiotrace_rw */ + MMIO_UNKNOWN_OP = 0x5, /* struct mmiotrace_rw */ }; struct mmiotrace_rw { -- cgit v1.2.1 From e98d0eabef2748d88fa58760d104e8e68517406b Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Mon, 29 Sep 2008 11:05:13 -0400 Subject: markers: marker_synchronize_unregister() Create marker_synchronize_unregister() which must be called before the end of exit() to make sure every probe callers have exited the non preemptible section and thus are not executing the probe code anymore. Signed-off-by: Mathieu Desnoyers Signed-off-by: Ingo Molnar --- include/linux/marker.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/marker.h b/include/linux/marker.h index 1290653f9241..889196c7fbb1 100644 --- a/include/linux/marker.h +++ b/include/linux/marker.h @@ -160,4 +160,11 @@ extern int marker_probe_unregister_private_data(marker_probe_func *probe, extern void *marker_get_private_data(const char *name, marker_probe_func *probe, int num); +/* + * marker_synchronize_unregister must be called between the last marker probe + * unregistration and the end of module exit to make sure there is no caller + * executing a probe when it is freed. + */ +#define marker_synchronize_unregister() synchronize_sched() + #endif -- cgit v1.2.1 From 53c8c8fdfd2d2d515bdcb3d0f2a11d1f3f42ece1 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Fri, 3 Oct 2008 11:52:54 -0400 Subject: markers: turn marker_synchronize_unregister() into an inline Turn marker synchronize unregister into a static inline. There is no reason to keep it as a macro over a static inline. Signed-off-by: Mathieu Desnoyers Signed-off-by: Ingo Molnar --- include/linux/marker.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/marker.h b/include/linux/marker.h index 889196c7fbb1..38e32e781ed7 100644 --- a/include/linux/marker.h +++ b/include/linux/marker.h @@ -13,6 +13,7 @@ */ #include +#include struct module; struct marker; @@ -165,6 +166,9 @@ extern void *marker_get_private_data(const char *name, marker_probe_func *probe, * unregistration and the end of module exit to make sure there is no caller * executing a probe when it is freed. */ -#define marker_synchronize_unregister() synchronize_sched() +static inline void marker_synchronize_unregister(void) +{ + synchronize_sched(); +} #endif -- cgit v1.2.1 From d13744cd6e3fef373a3fe656ac349b4e7c49ff79 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Weisbecker?= Date: Tue, 23 Sep 2008 11:32:08 +0100 Subject: tracing/ftrace: add the boot tracer Add the boot/initcall tracer. It's primary purpose is to be able to trace the initcalls. It is intended to be used with scripts/bootgraph.pl after some small improvements. Note that it is not active after its init. To avoid tracing (and so crashing) before the whole tracing engine init, you have to explicitly call start_boot_trace() after do_pre_smp_initcalls() to enable it. Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 5de9903645d5..91954eb6460f 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -5,6 +5,8 @@ #include #include +#include +#include extern int ftrace_enabled; extern int @@ -209,4 +211,21 @@ ftrace_init_module(unsigned long *start, unsigned long *end) { } #endif +struct boot_trace { + pid_t caller; + initcall_t func; + int result; + unsigned long long duration; +}; + +#ifdef CONFIG_BOOT_TRACER +extern void trace_boot(struct boot_trace *it); +extern void start_boot_trace(void); +#else +static inline void trace_boot(struct boot_trace *it) { } +static inline void start_boot_trace(void) { } +#endif + + + #endif /* _LINUX_FTRACE_H */ -- cgit v1.2.1 From 7a8e76a3829f1067b70f715771ff88baf2fbf3c3 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Mon, 29 Sep 2008 23:02:38 -0400 Subject: tracing: unified trace buffer This is a unified tracing buffer that implements a ring buffer that hopefully everyone will eventually be able to use. The events recorded into the buffer have the following structure: struct ring_buffer_event { u32 type:2, len:3, time_delta:27; u32 array[]; }; The minimum size of an event is 8 bytes. All events are 4 byte aligned inside the buffer. There are 4 types (all internal use for the ring buffer, only the data type is exported to the interface users). RINGBUF_TYPE_PADDING: this type is used to note extra space at the end of a buffer page. RINGBUF_TYPE_TIME_EXTENT: This type is used when the time between events is greater than the 27 bit delta can hold. We add another 32 bits, and record that in its own event (8 byte size). RINGBUF_TYPE_TIME_STAMP: (Not implemented yet). This will hold data to help keep the buffer timestamps in sync. RINGBUF_TYPE_DATA: The event actually holds user data. The "len" field is only three bits. Since the data must be 4 byte aligned, this field is shifted left by 2, giving a max length of 28 bytes. If the data load is greater than 28 bytes, the first array field holds the full length of the data load and the len field is set to zero. Example, data size of 7 bytes: type = RINGBUF_TYPE_DATA len = 2 time_delta: - array[0..1]: <7 bytes of data> <1 byte empty> This event is saved in 12 bytes of the buffer. An event with 82 bytes of data: type = RINGBUF_TYPE_DATA len = 0 time_delta: - array[0]: 84 (Note the alignment) array[1..14]: <82 bytes of data> <2 bytes empty> The above event is saved in 92 bytes (if my math is correct). 82 bytes of data, 2 bytes empty, 4 byte header, 4 byte length. Do not reference the above event struct directly. Use the following functions to gain access to the event table, since the ring_buffer_event structure may change in the future. ring_buffer_event_length(event): get the length of the event. This is the size of the memory used to record this event, and not the size of the data pay load. ring_buffer_time_delta(event): get the time delta of the event This returns the delta time stamp since the last event. Note: Even though this is in the header, there should be no reason to access this directly, accept for debugging. ring_buffer_event_data(event): get the data from the event This is the function to use to get the actual data from the event. Note, it is only a pointer to the data inside the buffer. This data must be copied to another location otherwise you risk it being written over in the buffer. ring_buffer_lock: A way to lock the entire buffer. ring_buffer_unlock: unlock the buffer. ring_buffer_alloc: create a new ring buffer. Can choose between overwrite or consumer/producer mode. Overwrite will overwrite old data, where as consumer producer will throw away new data if the consumer catches up with the producer. The consumer/producer is the default. ring_buffer_free: free the ring buffer. ring_buffer_resize: resize the buffer. Changes the size of each cpu buffer. Note, it is up to the caller to provide that the buffer is not being used while this is happening. This requirement may go away but do not count on it. ring_buffer_lock_reserve: locks the ring buffer and allocates an entry on the buffer to write to. ring_buffer_unlock_commit: unlocks the ring buffer and commits it to the buffer. ring_buffer_write: writes some data into the ring buffer. ring_buffer_peek: Look at a next item in the cpu buffer. ring_buffer_consume: get the next item in the cpu buffer and consume it. That is, this function increments the head pointer. ring_buffer_read_start: Start an iterator of a cpu buffer. For now, this disables the cpu buffer, until you issue a finish. This is just because we do not want the iterator to be overwritten. This restriction may change in the future. But note, this is used for static reading of a buffer which is usually done "after" a trace. Live readings would want to use the ring_buffer_consume above, which will not disable the ring buffer. ring_buffer_read_finish: Finishes the read iterator and reenables the ring buffer. ring_buffer_iter_peek: Look at the next item in the cpu iterator. ring_buffer_read: Read the iterator and increment it. ring_buffer_iter_reset: Reset the iterator to point to the beginning of the cpu buffer. ring_buffer_iter_empty: Returns true if the iterator is at the end of the cpu buffer. ring_buffer_size: returns the size in bytes of each cpu buffer. Note, the real size is this times the number of CPUs. ring_buffer_reset_cpu: Sets the cpu buffer to empty ring_buffer_reset: sets all cpu buffers to empty ring_buffer_swap_cpu: swaps a cpu buffer from one buffer with a cpu buffer of another buffer. This is handy when you want to take a snap shot of a running trace on just one cpu. Having a backup buffer, to swap with facilitates this. Ftrace max latencies use this. ring_buffer_empty: Returns true if the ring buffer is empty. ring_buffer_empty_cpu: Returns true if the cpu buffer is empty. ring_buffer_record_disable: disable all cpu buffers (read only) ring_buffer_record_disable_cpu: disable a single cpu buffer (read only) ring_buffer_record_enable: enable all cpu buffers. ring_buffer_record_enabl_cpu: enable a single cpu buffer. ring_buffer_entries: The number of entries in a ring buffer. ring_buffer_overruns: The number of entries removed due to writing wrap. ring_buffer_time_stamp: Get the time stamp used by the ring buffer ring_buffer_normalize_time_stamp: normalize the ring buffer time stamp into nanosecs. I still need to implement the GTOD feature. But we need support from the cpu frequency infrastructure. But this can be done at a later time without affecting the ring buffer interface. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ring_buffer.h | 130 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 include/linux/ring_buffer.h (limited to 'include') diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h new file mode 100644 index 000000000000..c52375b8330d --- /dev/null +++ b/include/linux/ring_buffer.h @@ -0,0 +1,130 @@ +#ifndef _LINUX_RING_BUFFER_H +#define _LINUX_RING_BUFFER_H + +#include +#include + +struct ring_buffer; +struct ring_buffer_iter; + +/* + * Don't reference this struct directly, use functions below. + */ +struct ring_buffer_event { + u32 type:2, len:3, time_delta:27; + u32 array[]; +}; + +/** + * enum ring_buffer_type - internal ring buffer types + * + * @RINGBUF_TYPE_PADDING: Left over page padding + * array is ignored + * size is variable depending on how much + * padding is needed + * + * @RINGBUF_TYPE_TIME_EXTEND: Extend the time delta + * array[0] = time delta (28 .. 59) + * size = 8 bytes + * + * @RINGBUF_TYPE_TIME_STAMP: Sync time stamp with external clock + * array[0] = tv_nsec + * array[1] = tv_sec + * size = 16 bytes + * + * @RINGBUF_TYPE_DATA: Data record + * If len is zero: + * array[0] holds the actual length + * array[1..(length+3)/4-1] holds data + * else + * length = len << 2 + * array[0..(length+3)/4] holds data + */ +enum ring_buffer_type { + RINGBUF_TYPE_PADDING, + RINGBUF_TYPE_TIME_EXTEND, + /* FIXME: RINGBUF_TYPE_TIME_STAMP not implemented */ + RINGBUF_TYPE_TIME_STAMP, + RINGBUF_TYPE_DATA, +}; + +unsigned ring_buffer_event_length(struct ring_buffer_event *event); +void *ring_buffer_event_data(struct ring_buffer_event *event); + +/** + * ring_buffer_event_time_delta - return the delta timestamp of the event + * @event: the event to get the delta timestamp of + * + * The delta timestamp is the 27 bit timestamp since the last event. + */ +static inline unsigned +ring_buffer_event_time_delta(struct ring_buffer_event *event) +{ + return event->time_delta; +} + +void ring_buffer_lock(struct ring_buffer *buffer, unsigned long *flags); +void ring_buffer_unlock(struct ring_buffer *buffer, unsigned long flags); + +/* + * size is in bytes for each per CPU buffer. + */ +struct ring_buffer * +ring_buffer_alloc(unsigned long size, unsigned flags); +void ring_buffer_free(struct ring_buffer *buffer); + +int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size); + +struct ring_buffer_event * +ring_buffer_lock_reserve(struct ring_buffer *buffer, + unsigned long length, + unsigned long *flags); +int ring_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, + unsigned long flags); +int ring_buffer_write(struct ring_buffer *buffer, + unsigned long length, void *data); + +struct ring_buffer_event * +ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts); +struct ring_buffer_event * +ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts); + +struct ring_buffer_iter * +ring_buffer_read_start(struct ring_buffer *buffer, int cpu); +void ring_buffer_read_finish(struct ring_buffer_iter *iter); + +struct ring_buffer_event * +ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts); +struct ring_buffer_event * +ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts); +void ring_buffer_iter_reset(struct ring_buffer_iter *iter); +int ring_buffer_iter_empty(struct ring_buffer_iter *iter); + +unsigned long ring_buffer_size(struct ring_buffer *buffer); + +void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu); +void ring_buffer_reset(struct ring_buffer *buffer); + +int ring_buffer_swap_cpu(struct ring_buffer *buffer_a, + struct ring_buffer *buffer_b, int cpu); + +int ring_buffer_empty(struct ring_buffer *buffer); +int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu); + +void ring_buffer_record_disable(struct ring_buffer *buffer); +void ring_buffer_record_enable(struct ring_buffer *buffer); +void ring_buffer_record_disable_cpu(struct ring_buffer *buffer, int cpu); +void ring_buffer_record_enable_cpu(struct ring_buffer *buffer, int cpu); + +unsigned long ring_buffer_entries(struct ring_buffer *buffer); +unsigned long ring_buffer_overruns(struct ring_buffer *buffer); + +u64 ring_buffer_time_stamp(int cpu); +void ring_buffer_normalize_time_stamp(int cpu, u64 *ts); + +enum ring_buffer_flags { + RB_FL_OVERWRITE = 1 << 0, +}; + +#endif /* _LINUX_RING_BUFFER_H */ -- cgit v1.2.1 From d769041f865330034131525ee6a7f72eb4af2a24 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 1 Oct 2008 00:29:53 -0400 Subject: ring_buffer: implement new locking The old "lock always" scheme had issues with lockdep, and was not very efficient anyways. This patch does a new design to be partially lockless on writes. Writes will add new entries to the per cpu pages by simply disabling interrupts. When a write needs to go to another page than it will grab the lock. A new "read page" has been added so that the reader can pull out a page from the ring buffer to read without worrying about the writer writing over it. This allows us to not take the lock for all reads. The lock is now only taken when a read needs to go to a new page. This is far from lockless, and interrupts still need to be disabled, but it is a step towards a more lockless solution, and it also solves a lot of the issues that were noticed by the first conversion of ftrace to the ring buffers. Note: the ring_buffer_{un}lock API has been removed. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- include/linux/ring_buffer.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index c52375b8330d..536b0ca46a03 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -63,9 +63,6 @@ ring_buffer_event_time_delta(struct ring_buffer_event *event) return event->time_delta; } -void ring_buffer_lock(struct ring_buffer *buffer, unsigned long *flags); -void ring_buffer_unlock(struct ring_buffer *buffer, unsigned long flags); - /* * size is in bytes for each per CPU buffer. */ -- cgit v1.2.1 From cb5ab74204a6e2579d1119bf1348eb806526b12b Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 2 Oct 2008 12:59:20 +0200 Subject: tracing/fastboot: change the printing of boot tracer according to bootgraph.pl Change the boot tracer printing to make it parsable for the scripts/bootgraph.pl script. We have now to output two lines for each initcall, according to the printk in do_one_initcall() in init/main.c We need now the call's time and the return's time. Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 91954eb6460f..4455490d91bd 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -216,6 +216,8 @@ struct boot_trace { initcall_t func; int result; unsigned long long duration; + ktime_t calltime; + ktime_t rettime; }; #ifdef CONFIG_BOOT_TRACER -- cgit v1.2.1 From 5601020feb0c3010e9e3e0131e9697ac6a06777b Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 2 Oct 2008 13:26:05 +0200 Subject: tracing/fastboot: get the initcall name before it disappears After some initcall traces, some initcall names may be inconsistent. That's because these functions will disappear from the .init section and also their name from the symbols table. So we have to copy the name of the function in a buffer large enough during the trace appending. It is not costly for the ring_buffer because the number of initcall entries is commonly not really large. Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 4455490d91bd..e672e51c40a9 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -7,6 +7,7 @@ #include #include #include +#include extern int ftrace_enabled; extern int @@ -213,7 +214,7 @@ ftrace_init_module(unsigned long *start, unsigned long *end) { } struct boot_trace { pid_t caller; - initcall_t func; + char func[KSYM_NAME_LEN]; int result; unsigned long long duration; ktime_t calltime; @@ -221,10 +222,10 @@ struct boot_trace { }; #ifdef CONFIG_BOOT_TRACER -extern void trace_boot(struct boot_trace *it); +extern void trace_boot(struct boot_trace *it, initcall_t fn); extern void start_boot_trace(void); #else -static inline void trace_boot(struct boot_trace *it) { } +static inline void trace_boot(struct boot_trace *it, initcall_t fn) { } static inline void start_boot_trace(void) { } #endif -- cgit v1.2.1 From 3e1932ad59726d794a865cc159c0593d54bf0cb6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 2 Oct 2008 17:45:47 +0200 Subject: tracing/fastboot: build fix fix: In file included from kernel/sysctl.c:52: include/linux/ftrace.h:217: error: 'KSYM_NAME_LEN' undeclared here (not in a function) Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index e672e51c40a9..deded114dffd 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -1,14 +1,14 @@ #ifndef _LINUX_FTRACE_H #define _LINUX_FTRACE_H -#ifdef CONFIG_FTRACE - #include #include #include #include #include +#ifdef CONFIG_FTRACE + extern int ftrace_enabled; extern int ftrace_enable_sysctl(struct ctl_table *table, int write, -- cgit v1.2.1 From eb7fa935274bb233686fdf7a53f40c5d9ee76ed6 Mon Sep 17 00:00:00 2001 From: Steven Noonan Date: Thu, 2 Oct 2008 12:00:07 -0700 Subject: ftrace: ktime.h not included in ftrace.h Including eliminates the following error: include/linux/ftrace.h:220: error: expected specifier-qualifier-list before 'ktime_t' Signed-off-by: Steven Noonan Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index deded114dffd..ed53265d1f63 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -3,6 +3,7 @@ #include #include +#include #include #include #include -- cgit v1.2.1 From 097d036a2f25eecc42435c57e010aaf4a2eed2d9 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 3 Oct 2008 15:39:21 +0200 Subject: tracing/fastboot: only trace non-module initcalls At this time, only built-in initcalls interest us. We can't really produce a relevant graph if we include the modules initcall too. I had good results after this patch (see svg in attachment). Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index ed53265d1f63..5812dba4ee24 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -225,9 +225,11 @@ struct boot_trace { #ifdef CONFIG_BOOT_TRACER extern void trace_boot(struct boot_trace *it, initcall_t fn); extern void start_boot_trace(void); +extern void stop_boot_trace(void); #else static inline void trace_boot(struct boot_trace *it, initcall_t fn) { } static inline void start_boot_trace(void) { } +static inline void stop_boot_trace(void) { } #endif -- cgit v1.2.1 From ca538f6bbe583406f941f3041d40c41f9a13d1de Mon Sep 17 00:00:00 2001 From: Tim Bird Date: Thu, 9 Oct 2008 15:23:05 -0700 Subject: tracing/fastboot: add better resolution to initcall debug/tracing Change the time resolution for initcall_debug to microseconds, from milliseconds. This is handy to determine which initcalls you want to work on for faster booting. One one of my test machines, over 90% of the initcalls are less than a millisecond and (without this patch) these are all reported as 0 msecs. Working on the 900 us ones is more important than the 4 us ones. With 'quiet' on the kernel command line, this adds no significant overhead to kernel boot time. Signed-off-by: Tim Bird Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar --- include/linux/ftrace.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 5812dba4ee24..a3d46151be19 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -215,9 +215,9 @@ ftrace_init_module(unsigned long *start, unsigned long *end) { } struct boot_trace { pid_t caller; - char func[KSYM_NAME_LEN]; + char func[KSYM_NAME_LEN]; int result; - unsigned long long duration; + unsigned long long duration; /* usecs */ ktime_t calltime; ktime_t rettime; }; -- cgit v1.2.1 From bfadadfccc19e36f7d600c5ce7b3e5ba5197fbf0 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Fri, 10 Oct 2008 03:48:25 -0400 Subject: markers: fix synchronize marker unregister static inline Use a #define for synchronize marker unregister to fix include dependencies. Fixes the slab circular inclusion which triggers when slab.git is combined with tracing.git, where rcupdate includes slab, which includes markers which includes rcupdate. Signed-off-by: Mathieu Desnoyers Acked-by: Pekka Enberg Signed-off-by: Ingo Molnar --- include/linux/marker.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/marker.h b/include/linux/marker.h index 38e32e781ed7..889196c7fbb1 100644 --- a/include/linux/marker.h +++ b/include/linux/marker.h @@ -13,7 +13,6 @@ */ #include -#include struct module; struct marker; @@ -166,9 +165,6 @@ extern void *marker_get_private_data(const char *name, marker_probe_func *probe, * unregistration and the end of module exit to make sure there is no caller * executing a probe when it is freed. */ -static inline void marker_synchronize_unregister(void) -{ - synchronize_sched(); -} +#define marker_synchronize_unregister() synchronize_sched() #endif -- cgit v1.2.1 From f2461fc82a083dd60062e05e704c5fcc1c658ba1 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Mon, 6 Oct 2008 10:33:00 -0400 Subject: tracepoints: tracepoint_synchronize_unregister() Create tracepoint_synchronize_unregister() which must be called before the end of exit() to make sure every probe callers have exited the non preemptible section and thus are not executing the probe code anymore. Signed-off-by: Mathieu Desnoyers Signed-off-by: Ingo Molnar --- include/linux/tracepoint.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index e623a6fca5c3..199f4c207c1e 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -124,4 +124,11 @@ extern void tracepoint_iter_reset(struct tracepoint_iter *iter); extern int tracepoint_get_iter_range(struct tracepoint **tracepoint, struct tracepoint *begin, struct tracepoint *end); +/* + * tracepoint_synchronize_unregister must be called between the last tracepoint + * probe unregistration and the end of module exit to make sure there is no + * caller executing a probe when it is freed. + */ +#define tracepoint_synchronize_unregister() synchronize_sched() + #endif -- cgit v1.2.1 From 231375cc5cc3549bb413f94a164bdcbd5f9ce943 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Fri, 3 Oct 2008 15:01:33 -0400 Subject: tracepoints: synchronize unregister static inline Turn tracepoint synchronize unregister into a static inline. There is no reason to keep it as a macro over a static inline. Signed-off-by: Mathieu Desnoyers Signed-off-by: Ingo Molnar --- include/linux/tracepoint.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 199f4c207c1e..c5bb39c7a770 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -129,6 +129,9 @@ extern int tracepoint_get_iter_range(struct tracepoint **tracepoint, * probe unregistration and the end of module exit to make sure there is no * caller executing a probe when it is freed. */ -#define tracepoint_synchronize_unregister() synchronize_sched() +static inline void tracepoint_synchronize_unregister(void) +{ + synchronize_sched(); +} #endif -- cgit v1.2.1 From 6028aa01f759a1dae11e5d0e495b3dc9d2b0a47b Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 14 Oct 2008 21:23:26 +0900 Subject: [MTD] [NAND] sh_flctl: add support for Renesas SuperH FLCTL Several Renesas SuperH CPU has FLCTL. The FLCTL support NAND Flash. This driver support SH7723. Signed-off-by: Yoshihiro Shimoda Acked-by: Paul Mundt Signed-off-by: David Woodhouse --- include/linux/mtd/sh_flctl.h | 125 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 include/linux/mtd/sh_flctl.h (limited to 'include') diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h new file mode 100644 index 000000000000..e77c1cea404d --- /dev/null +++ b/include/linux/mtd/sh_flctl.h @@ -0,0 +1,125 @@ +/* + * SuperH FLCTL nand controller + * + * Copyright © 2008 Renesas Solutions Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SH_FLCTL_H__ +#define __SH_FLCTL_H__ + +#include +#include +#include + +/* FLCTL registers */ +#define FLCMNCR(f) (f->reg + 0x0) +#define FLCMDCR(f) (f->reg + 0x4) +#define FLCMCDR(f) (f->reg + 0x8) +#define FLADR(f) (f->reg + 0xC) +#define FLADR2(f) (f->reg + 0x3C) +#define FLDATAR(f) (f->reg + 0x10) +#define FLDTCNTR(f) (f->reg + 0x14) +#define FLINTDMACR(f) (f->reg + 0x18) +#define FLBSYTMR(f) (f->reg + 0x1C) +#define FLBSYCNT(f) (f->reg + 0x20) +#define FLDTFIFO(f) (f->reg + 0x24) +#define FLECFIFO(f) (f->reg + 0x28) +#define FLTRCR(f) (f->reg + 0x2C) +#define FL4ECCRESULT0(f) (f->reg + 0x80) +#define FL4ECCRESULT1(f) (f->reg + 0x84) +#define FL4ECCRESULT2(f) (f->reg + 0x88) +#define FL4ECCRESULT3(f) (f->reg + 0x8C) +#define FL4ECCCR(f) (f->reg + 0x90) +#define FL4ECCCNT(f) (f->reg + 0x94) +#define FLERRADR(f) (f->reg + 0x98) + +/* FLCMNCR control bits */ +#define ECCPOS2 (0x1 << 25) +#define _4ECCCNTEN (0x1 << 24) +#define _4ECCEN (0x1 << 23) +#define _4ECCCORRECT (0x1 << 22) +#define SNAND_E (0x1 << 18) /* SNAND (0=512 1=2048)*/ +#define QTSEL_E (0x1 << 17) +#define ENDIAN (0x1 << 16) /* 1 = little endian */ +#define FCKSEL_E (0x1 << 15) +#define ECCPOS_00 (0x00 << 12) +#define ECCPOS_01 (0x01 << 12) +#define ECCPOS_02 (0x02 << 12) +#define ACM_SACCES_MODE (0x01 << 10) +#define NANWF_E (0x1 << 9) +#define SE_D (0x1 << 8) /* Spare area disable */ +#define CE1_ENABLE (0x1 << 4) /* Chip Enable 1 */ +#define CE0_ENABLE (0x1 << 3) /* Chip Enable 0 */ +#define TYPESEL_SET (0x1 << 0) + +/* FLCMDCR control bits */ +#define ADRCNT2_E (0x1 << 31) /* 5byte address enable */ +#define ADRMD_E (0x1 << 26) /* Sector address access */ +#define CDSRC_E (0x1 << 25) /* Data buffer selection */ +#define DOSR_E (0x1 << 24) /* Status read check */ +#define SELRW (0x1 << 21) /* 0:read 1:write */ +#define DOADR_E (0x1 << 20) /* Address stage execute */ +#define ADRCNT_1 (0x00 << 18) /* Address data bytes: 1byte */ +#define ADRCNT_2 (0x01 << 18) /* Address data bytes: 2byte */ +#define ADRCNT_3 (0x02 << 18) /* Address data bytes: 3byte */ +#define ADRCNT_4 (0x03 << 18) /* Address data bytes: 4byte */ +#define DOCMD2_E (0x1 << 17) /* 2nd cmd stage execute */ +#define DOCMD1_E (0x1 << 16) /* 1st cmd stage execute */ + +/* FLTRCR control bits */ +#define TRSTRT (0x1 << 0) /* translation start */ +#define TREND (0x1 << 1) /* translation end */ + +/* FL4ECCCR control bits */ +#define _4ECCFA (0x1 << 2) /* 4 symbols correct fault */ +#define _4ECCEND (0x1 << 1) /* 4 symbols end */ +#define _4ECCEXST (0x1 << 0) /* 4 symbols exist */ + +#define INIT_FL4ECCRESULT_VAL 0x03FF03FF +#define LOOP_TIMEOUT_MAX 0x00010000 + +#define mtd_to_flctl(mtd) container_of(mtd, struct sh_flctl, mtd) + +struct sh_flctl { + struct mtd_info mtd; + struct nand_chip chip; + void __iomem *reg; + + uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ + int read_bytes; + int index; + int seqin_column; /* column in SEQIN cmd */ + int seqin_page_addr; /* page_addr in SEQIN cmd */ + uint32_t seqin_read_cmd; /* read cmd in SEQIN cmd */ + int erase1_page_addr; /* page_addr in ERASE1 cmd */ + uint32_t erase_ADRCNT; /* bits of FLCMDCR in ERASE1 cmd */ + uint32_t rw_ADRCNT; /* bits of FLCMDCR in READ WRITE cmd */ + + int hwecc_cant_correct[4]; + + unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ + unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ +}; + +struct sh_flctl_platform_data { + struct mtd_partition *parts; + int nr_parts; + unsigned long flcmncr_val; + + unsigned has_hwecc:1; +}; + +#endif /* __SH_FLCTL_H__ */ -- cgit v1.2.1 From 74baaaaec8b4f22e1ae279f5ecca4ff705b28912 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Tue, 14 Oct 2008 09:21:02 -0400 Subject: vfs: Remove the range_cont writeback mode. Ext4 was the only user of range_cont writeback mode and ext4 switched to a different method. So remove the range_cont mode which is not used in the kernel. Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" CC: linux-fsdevel@vger.kernel.org --- include/linux/writeback.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 12b15c561a1f..bd91987c065f 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -63,7 +63,6 @@ struct writeback_control { unsigned for_writepages:1; /* This is a writepages() call */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ - unsigned range_cont:1; }; /* -- cgit v1.2.1 From e6a7d3c04f8fe49099521e6dc9a46b0272381f2f Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 14 Oct 2008 11:58:31 -0700 Subject: netfilter: ctnetlink: remove bogus module dependency between ctnetlink and nf_nat This patch removes the module dependency between ctnetlink and nf_nat by means of an indirect call that is initialized when nf_nat is loaded. Now, nf_conntrack_netlink only requires nf_conntrack and nfnetlink. This patch puts nfnetlink_parse_nat_setup_hook into the nf_conntrack_core to avoid dependencies between ctnetlink, nf_conntrack_ipv4 and nf_conntrack_ipv6. This patch also introduces the function ctnetlink_change_nat that is only invoked from the creation path. Actually, the nat handling cannot be invoked from the update path since this is not allowed. By introducing this function, we remove the useless nat handling in the update path and we avoid deadlock-prone code. This patch also adds the required EAGAIN logic for nfnetlink. Signed-off-by: Pablo Neira Ayuso Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netfilter/nfnetlink.h | 3 +++ include/net/netfilter/nf_nat_core.h | 8 ++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h index 0d8424f76899..7d8e0455ccac 100644 --- a/include/linux/netfilter/nfnetlink.h +++ b/include/linux/netfilter/nfnetlink.h @@ -78,6 +78,9 @@ extern int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo); extern int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags); +extern void nfnl_lock(void); +extern void nfnl_unlock(void); + #define MODULE_ALIAS_NFNL_SUBSYS(subsys) \ MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys)) diff --git a/include/net/netfilter/nf_nat_core.h b/include/net/netfilter/nf_nat_core.h index f29eeb9777e0..58684066388c 100644 --- a/include/net/netfilter/nf_nat_core.h +++ b/include/net/netfilter/nf_nat_core.h @@ -25,4 +25,12 @@ static inline int nf_nat_initialized(struct nf_conn *ct, else return test_bit(IPS_DST_NAT_DONE_BIT, &ct->status); } + +struct nlattr; + +extern int +(*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct, + enum nf_nat_manip_type manip, + struct nlattr *attr); + #endif /* _NF_NAT_CORE_H */ -- cgit v1.2.1 From 4704f0e274829e3af00737d2d9adace2d71a9605 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 14 Oct 2008 19:16:07 -0400 Subject: NFS: Fix the resolution problem with nfs_inode_attrs_need_update() It appears that 'jiffies' timestamps do not have high enough resolution for nfs_inode_attrs_need_update(). One problem is that a GETATTR can be launched within < 1 jiffy of the last operation that updated the attribute. Another problem is that RPC calls can take < 1 jiffy to execute. We can fix this by switching the variables to use a simple global counter that gets incremented every time we start another GETATTR call. Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 10 +++------- include/linux/nfs_xdr.h | 1 + 2 files changed, 4 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index ca563ee13e32..ac8d0233b05c 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -137,7 +137,7 @@ struct nfs_inode { unsigned long attrtimeo_timestamp; __u64 change_attr; /* v4 only */ - unsigned long last_updated; + unsigned long attr_gencount; /* "Generation counter" for the attribute cache. This is * bumped whenever we update the metadata on the * server. @@ -344,15 +344,11 @@ extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ct extern void put_nfs_open_context(struct nfs_open_context *ctx); extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode); extern u64 nfs_compat_user_ino64(u64 fileid); +extern void nfs_fattr_init(struct nfs_fattr *fattr); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ extern __be32 root_nfs_parse_addr(char *name); /*__init*/ - -static inline void nfs_fattr_init(struct nfs_fattr *fattr) -{ - fattr->valid = 0; - fattr->time_start = jiffies; -} +extern unsigned long nfs_inc_attr_generation_counter(void); /* * linux/fs/nfs/file.c diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 6ee6ae3f095c..c1c31acb8a2b 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -56,6 +56,7 @@ struct nfs_fattr { __u64 change_attr; /* NFSv4 change attribute */ __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ unsigned long time_start; + unsigned long gencount; }; #define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */ -- cgit v1.2.1 From e1a65b5828edfddb29c6fb4eb556fa503295146b Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 13 Oct 2008 09:15:01 -0700 Subject: mac80211: fixme for kernel-doc Fix kernel-doc warnings in mac80211.h. Fields need real explanations added to them. Warning(lin2627-g3-kdocfixes//include/net/mac80211.h:659): No description found for parameter 'icv_len' Warning(lin2627-g3-kdocfixes//include/net/mac80211.h:659): No description found for parameter 'iv_len' Signed-off-by: Randy Dunlap Signed-off-by: John W. Linville --- include/net/mac80211.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 5617a1613c91..d861197f83c7 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -645,7 +645,8 @@ enum ieee80211_key_flags { * - Temporal Encryption Key (128 bits) * - Temporal Authenticator Tx MIC Key (64 bits) * - Temporal Authenticator Rx MIC Key (64 bits) - * + * @icv_len: FIXME + * @iv_len: FIXME */ struct ieee80211_key_conf { enum ieee80211_key_alg alg; -- cgit v1.2.1 From 5fdbf9765b7ba6a45100851154768de703d51e76 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Fri, 27 Jun 2008 14:58:02 -0300 Subject: KVM: x86: accessors for guest registers As suggested by Avi, introduce accessors to read/write guest registers. This simplifies the ->cache_regs/->decache_regs interface, and improves register caching which is important for VMX, where the cost of vmcs_read/vmcs_write is significant. [avi: fix warnings] Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 69794547f514..8c886be0103f 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -89,7 +89,7 @@ extern struct list_head vm_list; struct kvm_vcpu; struct kvm; -enum { +enum kvm_reg { VCPU_REGS_RAX = 0, VCPU_REGS_RCX = 1, VCPU_REGS_RDX = 2, @@ -108,6 +108,7 @@ enum { VCPU_REGS_R14 = 14, VCPU_REGS_R15 = 15, #endif + VCPU_REGS_RIP, NR_VCPU_REGS }; @@ -219,8 +220,13 @@ struct kvm_vcpu_arch { int interrupt_window_open; unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS); - unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */ - unsigned long rip; /* needs vcpu_load_rsp_rip() */ + /* + * rip and regs accesses must go through + * kvm_{register,rip}_{read,write} functions. + */ + unsigned long regs[NR_VCPU_REGS]; + u32 regs_avail; + u32 regs_dirty; unsigned long cr0; unsigned long cr2; @@ -414,8 +420,7 @@ struct kvm_x86_ops { unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr); void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value, int *exception); - void (*cache_regs)(struct kvm_vcpu *vcpu); - void (*decache_regs)(struct kvm_vcpu *vcpu); + void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); -- cgit v1.2.1 From d98e6346350ac909f095768beb28b82368bd126f Mon Sep 17 00:00:00 2001 From: Hollis Blanchard Date: Tue, 1 Jul 2008 16:23:49 -0500 Subject: KVM: Move KVM TRACE DEFINITIONS to common header Move KVM trace definitions from x86 specific kvm headers to common kvm headers to create a cross-architecture numbering scheme for trace events. This means the kvmtrace_format userspace tool won't need to know which architecture produced the log file being processed. Signed-off-by: Jerone Young Signed-off-by: Hollis Blanchard Signed-off-by: Avi Kivity --- include/asm-x86/kvm.h | 22 ---------------------- include/asm-x86/kvm_host.h | 18 ------------------ include/linux/kvm.h | 21 +++++++++++++++++++++ include/linux/kvm_host.h | 19 +++++++++++++++++++ 4 files changed, 40 insertions(+), 40 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm.h b/include/asm-x86/kvm.h index 78e954db1e7f..ba0dd791fadf 100644 --- a/include/asm-x86/kvm.h +++ b/include/asm-x86/kvm.h @@ -208,26 +208,4 @@ struct kvm_pit_channel_state { struct kvm_pit_state { struct kvm_pit_channel_state channels[3]; }; - -#define KVM_TRC_INJ_VIRQ (KVM_TRC_HANDLER + 0x02) -#define KVM_TRC_REDELIVER_EVT (KVM_TRC_HANDLER + 0x03) -#define KVM_TRC_PEND_INTR (KVM_TRC_HANDLER + 0x04) -#define KVM_TRC_IO_READ (KVM_TRC_HANDLER + 0x05) -#define KVM_TRC_IO_WRITE (KVM_TRC_HANDLER + 0x06) -#define KVM_TRC_CR_READ (KVM_TRC_HANDLER + 0x07) -#define KVM_TRC_CR_WRITE (KVM_TRC_HANDLER + 0x08) -#define KVM_TRC_DR_READ (KVM_TRC_HANDLER + 0x09) -#define KVM_TRC_DR_WRITE (KVM_TRC_HANDLER + 0x0A) -#define KVM_TRC_MSR_READ (KVM_TRC_HANDLER + 0x0B) -#define KVM_TRC_MSR_WRITE (KVM_TRC_HANDLER + 0x0C) -#define KVM_TRC_CPUID (KVM_TRC_HANDLER + 0x0D) -#define KVM_TRC_INTR (KVM_TRC_HANDLER + 0x0E) -#define KVM_TRC_NMI (KVM_TRC_HANDLER + 0x0F) -#define KVM_TRC_VMMCALL (KVM_TRC_HANDLER + 0x10) -#define KVM_TRC_HLT (KVM_TRC_HANDLER + 0x11) -#define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12) -#define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13) -#define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14) -#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15) - #endif /* ASM_X86__KVM_H */ diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 8c886be0103f..4f2bd884fd3a 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -691,24 +691,6 @@ enum { TASK_SWITCH_GATE = 3, }; -#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 5, d1, d2, d3, d4, d5) -#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 4, d1, d2, d3, d4, 0) -#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 3, d1, d2, d3, 0, 0) -#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 2, d1, d2, 0, 0, 0) -#define KVMTRACE_1D(evt, vcpu, d1, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 1, d1, 0, 0, 0, 0) -#define KVMTRACE_0D(evt, vcpu, name) \ - trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ - vcpu, 0, 0, 0, 0, 0, 0) #ifdef CONFIG_64BIT # define KVM_EX_ENTRY ".quad" diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 70a30651cd12..8a3ceadb1366 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -440,4 +440,25 @@ struct kvm_trace_rec { #define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state) #define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state) +#define KVM_TRC_INJ_VIRQ (KVM_TRC_HANDLER + 0x02) +#define KVM_TRC_REDELIVER_EVT (KVM_TRC_HANDLER + 0x03) +#define KVM_TRC_PEND_INTR (KVM_TRC_HANDLER + 0x04) +#define KVM_TRC_IO_READ (KVM_TRC_HANDLER + 0x05) +#define KVM_TRC_IO_WRITE (KVM_TRC_HANDLER + 0x06) +#define KVM_TRC_CR_READ (KVM_TRC_HANDLER + 0x07) +#define KVM_TRC_CR_WRITE (KVM_TRC_HANDLER + 0x08) +#define KVM_TRC_DR_READ (KVM_TRC_HANDLER + 0x09) +#define KVM_TRC_DR_WRITE (KVM_TRC_HANDLER + 0x0A) +#define KVM_TRC_MSR_READ (KVM_TRC_HANDLER + 0x0B) +#define KVM_TRC_MSR_WRITE (KVM_TRC_HANDLER + 0x0C) +#define KVM_TRC_CPUID (KVM_TRC_HANDLER + 0x0D) +#define KVM_TRC_INTR (KVM_TRC_HANDLER + 0x0E) +#define KVM_TRC_NMI (KVM_TRC_HANDLER + 0x0F) +#define KVM_TRC_VMMCALL (KVM_TRC_HANDLER + 0x10) +#define KVM_TRC_HLT (KVM_TRC_HANDLER + 0x11) +#define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12) +#define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13) +#define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14) +#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15) + #endif diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 8525afc53107..a18aaad2ab79 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -326,6 +326,25 @@ struct kvm_stats_debugfs_item { extern struct kvm_stats_debugfs_item debugfs_entries[]; extern struct dentry *kvm_debugfs_dir; +#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 5, d1, d2, d3, d4, d5) +#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 4, d1, d2, d3, d4, 0) +#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 3, d1, d2, d3, 0, 0) +#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 2, d1, d2, 0, 0, 0) +#define KVMTRACE_1D(evt, vcpu, d1, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 1, d1, 0, 0, 0, 0) +#define KVMTRACE_0D(evt, vcpu, name) \ + trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ + vcpu, 0, 0, 0, 0, 0, 0) + #ifdef CONFIG_KVM_TRACE int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg); void kvm_trace_cleanup(void); -- cgit v1.2.1 From 668f612fa0d8d4120ec5dc0725d7e1ca3152a954 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 2 Jul 2008 09:28:55 +0300 Subject: KVM: VMX: Move nmi injection failure processing to vm exit path Instead of processing nmi injection failure in the vm entry path, move it to the vm exit path (vm_complete_interrupts()). This separates nmi injection from nmi post-processing, and moves the nmi state from the VT state into vcpu state (new variable nmi_injected specifying an injection in progress). Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 4f2bd884fd3a..7cf69fd1dcfe 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -300,6 +300,7 @@ struct kvm_vcpu_arch { struct page *time_page; bool nmi_pending; + bool nmi_injected; u64 mtrr[0x100]; }; -- cgit v1.2.1 From 937a7eaef9f08342958d17055a350982b7bd92cb Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 3 Jul 2008 15:17:01 +0300 Subject: KVM: Add a pending interrupt queue Similar to the exception queue, this hold interrupts that have been accepted by the virtual processor core but not yet injected. Not yet used. Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 7cf69fd1dcfe..65c6a0e5b739 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -275,6 +275,11 @@ struct kvm_vcpu_arch { u32 error_code; } exception; + struct kvm_queued_interrupt { + bool pending; + u8 nr; + } interrupt; + struct { int active; u8 save_iopl; -- cgit v1.2.1 From 19bd8afdc4e6fbb47e4841f8d771f8cb29916d9f Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Sun, 13 Jul 2008 13:40:55 +0200 Subject: KVM: Consolidate XX_VECTOR defines Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 65c6a0e5b739..da3c1979b734 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -57,6 +57,7 @@ #define KVM_PAGES_PER_HPAGE (KVM_HPAGE_SIZE / PAGE_SIZE) #define DE_VECTOR 0 +#define DB_VECTOR 1 #define UD_VECTOR 6 #define NM_VECTOR 7 #define DF_VECTOR 8 -- cgit v1.2.1 From 77ab6db0a1c403387b403e9351ab3f5ae1df83e6 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Mon, 14 Jul 2008 12:28:51 +0200 Subject: KVM: VMX: Reinject real mode exception As we execute real mode guests in VM86 mode, exception have to be reinjected appropriately when the guest triggered them. For this purpose the patch adopts the real-mode injection pattern used in vmx_inject_irq to vmx_queue_exception, additionally taking care that the IP is set correctly for #BP exceptions. Furthermore it extends handle_rmode_exception to reinject all those exceptions that can be raised in real mode. This fixes the execution of himem.exe from FreeDOS and also makes its debug.com work properly. Note that guest debugging in real mode is broken now. This has to be fixed by the scheduled debugging infrastructure rework (will be done once base patches for QEMU have been accepted). Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index da3c1979b734..83afa10c77f5 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -58,6 +58,9 @@ #define DE_VECTOR 0 #define DB_VECTOR 1 +#define BP_VECTOR 3 +#define OF_VECTOR 4 +#define BR_VECTOR 5 #define UD_VECTOR 6 #define NM_VECTOR 7 #define DF_VECTOR 8 @@ -66,6 +69,7 @@ #define SS_VECTOR 12 #define GP_VECTOR 13 #define PF_VECTOR 14 +#define MF_VECTOR 16 #define MC_VECTOR 18 #define SELECTOR_TI_MASK (1 << 2) -- cgit v1.2.1 From e32c8f2c0720fb21c6f4a5f6ccbebdadc878f707 Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Mon, 14 Jul 2008 14:00:00 +0200 Subject: KVM: kvmtrace: Remove use of bit fields in kvm trace structure This patch fixes kvmtrace use on big endian systems. When using bit fields the compiler will lay data out in the wrong order expected when laid down into a file. This fixes it by using one variable instead of using bit fields. Signed-off-by: Jerone Young Signed-off-by: Christian Ehrhardt Signed-off-by: Avi Kivity --- include/linux/kvm.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 8a3ceadb1366..8a16b083df2e 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -311,9 +311,13 @@ struct kvm_s390_interrupt { /* This structure represents a single trace buffer record. */ struct kvm_trace_rec { - __u32 event:28; - __u32 extra_u32:3; - __u32 cycle_in:1; + /* variable rec_val + * is split into: + * bits 0 - 27 -> event id + * bits 28 -30 -> number of extra data args of size u32 + * bits 31 -> binary indicator for if tsc is in record + */ + __u32 rec_val; __u32 pid; __u32 vcpu_id; union { @@ -327,6 +331,13 @@ struct kvm_trace_rec { } u; }; +#define TRACE_REC_EVENT_ID(val) \ + (0x0fffffff & (val)) +#define TRACE_REC_NUM_DATA_ARGS(val) \ + (0x70000000 & ((val) << 28)) +#define TRACE_REC_TCS(val) \ + (0x80000000 & ((val) << 31)) + #define KVMIO 0xAE /* -- cgit v1.2.1 From 3f7f95c65ef6a89472a28da1b9436eaeee288831 Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Mon, 14 Jul 2008 14:00:01 +0200 Subject: KVM: kvmtrace: replace get_cycles with ktime_get v3 The current kvmtrace code uses get_cycles() while the interpretation would be easier using using nanoseconds. ktime_get() should give at least the same accuracy as get_cycles on all architectures (even better on 32bit archs) but at a better unit (e.g. comparable between hosts with different frequencies. [avi: avoid ktime_t in public header] Signed-off-by: Christian Ehrhardt Acked-by: Christian Borntraeger Signed-off-by: Avi Kivity --- include/linux/kvm.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 8a16b083df2e..5d08f11bb27f 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -322,12 +322,12 @@ struct kvm_trace_rec { __u32 vcpu_id; union { struct { - __u64 cycle_u64; + __u64 timestamp; __u32 extra_u32[KVM_TRC_EXTRA_MAX]; - } __attribute__((packed)) cycle; + } __attribute__((packed)) timestamp; struct { __u32 extra_u32[KVM_TRC_EXTRA_MAX]; - } nocycle; + } notimestamp; } u; }; -- cgit v1.2.1 From 31711f2294b38d8334efaf7dbac6da4781fd151e Mon Sep 17 00:00:00 2001 From: Jerone Young Date: Mon, 14 Jul 2008 14:00:03 +0200 Subject: KVM: ppc: adds trace points for ppc tlb activity This patch adds trace points to track powerpc TLB activities using the KVM_TRACE infrastructure. Signed-off-by: Jerone Young Signed-off-by: Christian Ehrhardt Signed-off-by: Avi Kivity --- include/linux/kvm.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 5d08f11bb27f..e21a5050d4d6 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -471,5 +471,8 @@ struct kvm_trace_rec { #define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13) #define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14) #define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15) +#define KVM_TRC_GTLB_WRITE (KVM_TRC_HANDLER + 0x16) +#define KVM_TRC_STLB_WRITE (KVM_TRC_HANDLER + 0x17) +#define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18) #endif -- cgit v1.2.1 From 3b4bd7969f7b61a1ab455bff084ee4f0a2411055 Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Mon, 14 Jul 2008 14:00:04 +0200 Subject: KVM: ppc: trace powerpc instruction emulation This patch adds a trace point for the instruction emulation on embedded powerpc utilizing the KVM_TRACE interface. Signed-off-by: Christian Ehrhardt Signed-off-by: Avi Kivity --- include/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index e21a5050d4d6..d29b64881447 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -474,5 +474,6 @@ struct kvm_trace_rec { #define KVM_TRC_GTLB_WRITE (KVM_TRC_HANDLER + 0x16) #define KVM_TRC_STLB_WRITE (KVM_TRC_HANDLER + 0x17) #define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18) +#define KVM_TRC_PPC_INSTR (KVM_TRC_HANDLER + 0x19) #endif -- cgit v1.2.1 From 564f15378f04921d5749f27ec53d5e68a6d1d446 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Sat, 26 Jul 2008 17:00:59 -0300 Subject: KVM: Add irq ack notifier list This can be used by kvm subsystems that are interested in when interrupts are acked, for example time drift compensation. Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 83afa10c77f5..d451928fc841 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -321,6 +321,12 @@ struct kvm_mem_alias { gfn_t target_gfn; }; +struct kvm_irq_ack_notifier { + struct hlist_node link; + unsigned gsi; + void (*irq_acked)(struct kvm_irq_ack_notifier *kian); +}; + struct kvm_arch{ int naliases; struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; @@ -336,6 +342,7 @@ struct kvm_arch{ struct kvm_pic *vpic; struct kvm_ioapic *vioapic; struct kvm_pit *vpit; + struct hlist_head irq_ack_notifier_list; int round_robin_prev_vcpu; unsigned int tss_addr; -- cgit v1.2.1 From 3807f345b2c610336c17c7624a0d496a38df75a0 Mon Sep 17 00:00:00 2001 From: Glauber Costa Date: Mon, 28 Jul 2008 11:47:52 -0300 Subject: x86: paravirt: factor out cpu_khz to common code KVM intends to use paravirt code to calibrate khz. Xen current code will do just fine. So as a first step, factor out code to pvclock.c. Signed-off-by: Glauber Costa Signed-off-by: Avi Kivity --- include/asm-x86/pvclock.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/pvclock.h b/include/asm-x86/pvclock.h index 1a38f6834800..ad29e277fd6d 100644 --- a/include/asm-x86/pvclock.h +++ b/include/asm-x86/pvclock.h @@ -6,6 +6,7 @@ /* some helper functions for xen and kvm pv clock sources */ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src); +unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src); void pvclock_read_wallclock(struct pvclock_wall_clock *wall, struct pvclock_vcpu_time_info *vcpu, struct timespec *ts); -- cgit v1.2.1 From 4d5c5d0fe89c921336b95f5e7e4f529a9df92f53 Mon Sep 17 00:00:00 2001 From: Ben-Ami Yassour Date: Mon, 28 Jul 2008 19:26:26 +0300 Subject: KVM: pci device assignment Based on a patch from: Amit Shah This patch adds support for handling PCI devices that are assigned to the guest. The device to be assigned to the guest is registered in the host kernel and interrupt delivery is handled. If a device is already assigned, or the device driver for it is still loaded on the host, the device assignment is failed by conveying a -EBUSY reply to the userspace. Devices that share their interrupt line are not supported at the moment. By itself, this patch will not make devices work within the guest. The VT-d extension is required to enable the device to perform DMA. Another alternative is PVDMA. Signed-off-by: Amit Shah Signed-off-by: Ben-Ami Yassour Signed-off-by: Weidong Han Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 16 ++++++++++++++++ include/linux/kvm.h | 19 +++++++++++++++++++ 2 files changed, 35 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index d451928fc841..99dddfcecf60 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -327,6 +327,21 @@ struct kvm_irq_ack_notifier { void (*irq_acked)(struct kvm_irq_ack_notifier *kian); }; +struct kvm_assigned_dev_kernel { + struct kvm_irq_ack_notifier ack_notifier; + struct work_struct interrupt_work; + struct list_head list; + struct kvm_assigned_pci_dev assigned_dev; + int assigned_dev_id; + int host_busnr; + int host_devfn; + int host_irq; + int guest_irq; + int irq_requested; + struct pci_dev *dev; + struct kvm *kvm; +}; + struct kvm_arch{ int naliases; struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; @@ -339,6 +354,7 @@ struct kvm_arch{ * Hash table of struct kvm_mmu_page. */ struct list_head active_mmu_pages; + struct list_head assigned_dev_head; struct kvm_pic *vpic; struct kvm_ioapic *vioapic; struct kvm_pit *vpit; diff --git a/include/linux/kvm.h b/include/linux/kvm.h index d29b64881447..ef4bc6f89778 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -383,6 +383,7 @@ struct kvm_trace_rec { #define KVM_CAP_MP_STATE 14 #define KVM_CAP_COALESCED_MMIO 15 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ +#define KVM_CAP_DEVICE_ASSIGNMENT 17 /* * ioctls for VM fds @@ -412,6 +413,10 @@ struct kvm_trace_rec { _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone) #define KVM_UNREGISTER_COALESCED_MMIO \ _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone) +#define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, \ + struct kvm_assigned_pci_dev) +#define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \ + struct kvm_assigned_irq) /* * ioctls for vcpu fds @@ -476,4 +481,18 @@ struct kvm_trace_rec { #define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18) #define KVM_TRC_PPC_INSTR (KVM_TRC_HANDLER + 0x19) +struct kvm_assigned_pci_dev { + __u32 assigned_dev_id; + __u32 busnr; + __u32 devfn; + __u32 flags; +}; + +struct kvm_assigned_irq { + __u32 assigned_dev_id; + __u32 host_irq; + __u32 guest_irq; + __u32 flags; +}; + #endif -- cgit v1.2.1 From 6ad18fba05228fb1d47cdbc0339fe8b3fca1ca26 Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Mon, 11 Aug 2008 10:01:49 -0700 Subject: KVM: Reduce stack usage in kvm_pv_mmu_op() We're in a hot path. We can't use kmalloc() because it might impact performance. So, we just stick the buffer that we need into the kvm_vcpu_arch structure. This is used very often, so it is not really a waste. We also have to move the buffer structure's definition to the arch-specific x86 kvm header. Signed-off-by: Dave Hansen Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 99dddfcecf60..9cb4b4dae5c6 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -201,6 +201,13 @@ struct kvm_mmu_page { }; }; +struct kvm_pv_mmu_op_buffer { + void *ptr; + unsigned len; + unsigned processed; + char buf[512] __aligned(sizeof(long)); +}; + /* * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level * 32-bit). The kvm_mmu structure abstracts the details of the current mmu @@ -248,6 +255,9 @@ struct kvm_vcpu_arch { bool tpr_access_reporting; struct kvm_mmu mmu; + /* only needed in kvm_pv_mmu_op() path, but it's hot so + * put it here to avoid allocation */ + struct kvm_pv_mmu_op_buffer mmu_op_buffer; struct kvm_mmu_memory_cache mmu_pte_chain_cache; struct kvm_mmu_memory_cache mmu_rmap_desc_cache; -- cgit v1.2.1 From 8349b5cd816adf102c078553ec8ca63b3beb457c Mon Sep 17 00:00:00 2001 From: Ben-Ami Yassour Date: Tue, 5 Aug 2008 15:30:13 +0300 Subject: KVM: remove unused field from the assigned dev struct Remove unused field: struct kvm_assigned_pci_dev assigned_dev from struct: struct kvm_assigned_dev_kernel Signed-off-by: Ben-Ami Yassour Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 9cb4b4dae5c6..225fdb835d44 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -341,7 +341,6 @@ struct kvm_assigned_dev_kernel { struct kvm_irq_ack_notifier ack_notifier; struct work_struct interrupt_work; struct list_head list; - struct kvm_assigned_pci_dev assigned_dev; int assigned_dev_id; int host_busnr; int host_devfn; -- cgit v1.2.1 From 8ceed34744f81c4a33d68ab825fd9ad3dd5f5505 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 14 Aug 2008 21:25:47 +0300 Subject: KVM: Simplify exception entries by using __ASM_SIZE and _ASM_PTR Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 225fdb835d44..b6d26b80b75b 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -734,15 +734,6 @@ enum { TASK_SWITCH_GATE = 3, }; - -#ifdef CONFIG_64BIT -# define KVM_EX_ENTRY ".quad" -# define KVM_EX_PUSH "pushq" -#else -# define KVM_EX_ENTRY ".long" -# define KVM_EX_PUSH "pushl" -#endif - /* * Hardware virtualization extension instructions may fault if a * reboot turns off virtualization while processes are running. @@ -754,11 +745,11 @@ asmlinkage void kvm_handle_fault_on_reboot(void); "666: " insn "\n\t" \ ".pushsection .fixup, \"ax\" \n" \ "667: \n\t" \ - KVM_EX_PUSH " $666b \n\t" \ + __ASM_SIZE(push) " $666b \n\t" \ "jmp kvm_handle_fault_on_reboot \n\t" \ ".popsection \n\t" \ ".pushsection __ex_table, \"a\" \n\t" \ - KVM_EX_ENTRY " 666b, 667b \n\t" \ + _ASM_PTR " 666b, 667b \n\t" \ ".popsection" #define KVM_ARCH_WANT_MMU_NOTIFIER -- cgit v1.2.1 From fa89a81766e33343fa8f0fe0e371819bf94a17a1 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 1 Sep 2008 15:57:51 +0300 Subject: KVM: Add statistics for guest irq injections These can help show whether a guest is making progress or not. Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index b6d26b80b75b..68a3ac13afce 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -413,6 +413,7 @@ struct kvm_vcpu_stat { u32 insn_emulation; u32 insn_emulation_fail; u32 hypercalls; + u32 irq_injections; }; struct descriptor_table { -- cgit v1.2.1 From d76901750ab9f71091d33ef3d2b5909d8a9a4ad4 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Mon, 8 Sep 2008 15:23:48 -0300 Subject: KVM: x86: do not execute halted vcpus Offline or uninitialized vcpu's can be executed if requested to perform userspace work. Follow Avi's suggestion to handle halted vcpu's in the main loop, simplifying kvm_emulate_halt(). Introduce a new vcpu->requests bit to indicate events that promote state from halted to running. Also standardize vcpu wake sites. Signed-off-by: Marcelo Tosatti redhat.com> Signed-off-by: Avi Kivity --- include/linux/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a18aaad2ab79..4b036430ea23 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -34,6 +34,7 @@ #define KVM_REQ_MMU_RELOAD 3 #define KVM_REQ_TRIPLE_FAULT 4 #define KVM_REQ_PENDING_TIMER 5 +#define KVM_REQ_UNHALT 6 struct kvm_vcpu; extern struct kmem_cache *kvm_vcpu_cache; -- cgit v1.2.1 From defed7ed926eca9f178a632df05baa866abe754e Mon Sep 17 00:00:00 2001 From: Sheng Yang Date: Thu, 11 Sep 2008 15:27:50 +0800 Subject: x86: Move FEATURE_CONTROL bits to msr-index.h For MSR_IA32_FEATURE_CONTROL is already there. Signed-off-by: Sheng Yang Signed-off-by: Avi Kivity --- include/asm-x86/msr-index.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-x86/msr-index.h b/include/asm-x86/msr-index.h index 0bb43301a202..dabd10f0bbee 100644 --- a/include/asm-x86/msr-index.h +++ b/include/asm-x86/msr-index.h @@ -178,6 +178,9 @@ #define MSR_IA32_EBL_CR_POWERON 0x0000002a #define MSR_IA32_FEATURE_CONTROL 0x0000003a +#define FEATURE_CONTROL_LOCKED (1<<0) +#define FEATURE_CONTROL_VMXON_ENABLED (1<<2) + #define MSR_IA32_APICBASE 0x0000001b #define MSR_IA32_APICBASE_BSP (1<<8) #define MSR_IA32_APICBASE_ENABLE (1<<11) -- cgit v1.2.1 From 387179464257921eb9aa3d15cc3ff194f6945a7c Mon Sep 17 00:00:00 2001 From: "Kay, Allen M" Date: Tue, 9 Sep 2008 18:37:29 +0300 Subject: VT-d: Changes to support KVM This patch extends the VT-d driver to support KVM [Ben: fixed memory pinning] [avi: move dma_remapping.h as well] Signed-off-by: Kay, Allen M Signed-off-by: Weidong Han Signed-off-by: Ben-Ami Yassour Signed-off-by: Amit Shah Acked-by: Mark Gross Signed-off-by: Avi Kivity --- include/linux/dma_remapping.h | 157 ++++++++++++++++++++ include/linux/intel-iommu.h | 327 ++++++++++++++++++++++++++++++++++++++++++ include/linux/iova.h | 52 +++++++ 3 files changed, 536 insertions(+) create mode 100644 include/linux/dma_remapping.h create mode 100644 include/linux/intel-iommu.h create mode 100644 include/linux/iova.h (limited to 'include') diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h new file mode 100644 index 000000000000..bff5c65f81dc --- /dev/null +++ b/include/linux/dma_remapping.h @@ -0,0 +1,157 @@ +#ifndef _DMA_REMAPPING_H +#define _DMA_REMAPPING_H + +/* + * We need a fixed PAGE_SIZE of 4K irrespective of + * arch PAGE_SIZE for IOMMU page tables. + */ +#define PAGE_SHIFT_4K (12) +#define PAGE_SIZE_4K (1UL << PAGE_SHIFT_4K) +#define PAGE_MASK_4K (((u64)-1) << PAGE_SHIFT_4K) +#define PAGE_ALIGN_4K(addr) (((addr) + PAGE_SIZE_4K - 1) & PAGE_MASK_4K) + +#define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT_4K) +#define DMA_32BIT_PFN IOVA_PFN(DMA_32BIT_MASK) +#define DMA_64BIT_PFN IOVA_PFN(DMA_64BIT_MASK) + + +/* + * 0: Present + * 1-11: Reserved + * 12-63: Context Ptr (12 - (haw-1)) + * 64-127: Reserved + */ +struct root_entry { + u64 val; + u64 rsvd1; +}; +#define ROOT_ENTRY_NR (PAGE_SIZE_4K/sizeof(struct root_entry)) +static inline bool root_present(struct root_entry *root) +{ + return (root->val & 1); +} +static inline void set_root_present(struct root_entry *root) +{ + root->val |= 1; +} +static inline void set_root_value(struct root_entry *root, unsigned long value) +{ + root->val |= value & PAGE_MASK_4K; +} + +struct context_entry; +static inline struct context_entry * +get_context_addr_from_root(struct root_entry *root) +{ + return (struct context_entry *) + (root_present(root)?phys_to_virt( + root->val & PAGE_MASK_4K): + NULL); +} + +/* + * low 64 bits: + * 0: present + * 1: fault processing disable + * 2-3: translation type + * 12-63: address space root + * high 64 bits: + * 0-2: address width + * 3-6: aval + * 8-23: domain id + */ +struct context_entry { + u64 lo; + u64 hi; +}; +#define context_present(c) ((c).lo & 1) +#define context_fault_disable(c) (((c).lo >> 1) & 1) +#define context_translation_type(c) (((c).lo >> 2) & 3) +#define context_address_root(c) ((c).lo & PAGE_MASK_4K) +#define context_address_width(c) ((c).hi & 7) +#define context_domain_id(c) (((c).hi >> 8) & ((1 << 16) - 1)) + +#define context_set_present(c) do {(c).lo |= 1;} while (0) +#define context_set_fault_enable(c) \ + do {(c).lo &= (((u64)-1) << 2) | 1;} while (0) +#define context_set_translation_type(c, val) \ + do { \ + (c).lo &= (((u64)-1) << 4) | 3; \ + (c).lo |= ((val) & 3) << 2; \ + } while (0) +#define CONTEXT_TT_MULTI_LEVEL 0 +#define context_set_address_root(c, val) \ + do {(c).lo |= (val) & PAGE_MASK_4K;} while (0) +#define context_set_address_width(c, val) do {(c).hi |= (val) & 7;} while (0) +#define context_set_domain_id(c, val) \ + do {(c).hi |= ((val) & ((1 << 16) - 1)) << 8;} while (0) +#define context_clear_entry(c) do {(c).lo = 0; (c).hi = 0;} while (0) + +/* + * 0: readable + * 1: writable + * 2-6: reserved + * 7: super page + * 8-11: available + * 12-63: Host physcial address + */ +struct dma_pte { + u64 val; +}; +#define dma_clear_pte(p) do {(p).val = 0;} while (0) + +#define DMA_PTE_READ (1) +#define DMA_PTE_WRITE (2) + +#define dma_set_pte_readable(p) do {(p).val |= DMA_PTE_READ;} while (0) +#define dma_set_pte_writable(p) do {(p).val |= DMA_PTE_WRITE;} while (0) +#define dma_set_pte_prot(p, prot) \ + do {(p).val = ((p).val & ~3) | ((prot) & 3); } while (0) +#define dma_pte_addr(p) ((p).val & PAGE_MASK_4K) +#define dma_set_pte_addr(p, addr) do {\ + (p).val |= ((addr) & PAGE_MASK_4K); } while (0) +#define dma_pte_present(p) (((p).val & 3) != 0) + +struct intel_iommu; + +struct dmar_domain { + int id; /* domain id */ + struct intel_iommu *iommu; /* back pointer to owning iommu */ + + struct list_head devices; /* all devices' list */ + struct iova_domain iovad; /* iova's that belong to this domain */ + + struct dma_pte *pgd; /* virtual address */ + spinlock_t mapping_lock; /* page table lock */ + int gaw; /* max guest address width */ + + /* adjusted guest address width, 0 is level 2 30-bit */ + int agaw; + +#define DOMAIN_FLAG_MULTIPLE_DEVICES 1 + int flags; +}; + +/* PCI domain-device relationship */ +struct device_domain_info { + struct list_head link; /* link to domain siblings */ + struct list_head global; /* link to global list */ + u8 bus; /* PCI bus numer */ + u8 devfn; /* PCI devfn number */ + struct pci_dev *dev; /* it's NULL for PCIE-to-PCI bridge */ + struct dmar_domain *domain; /* pointer to domain */ +}; + +extern int init_dmars(void); +extern void free_dmar_iommu(struct intel_iommu *iommu); + +extern int dmar_disabled; + +#ifndef CONFIG_DMAR_GFX_WA +static inline void iommu_prepare_gfx_mapping(void) +{ + return; +} +#endif /* !CONFIG_DMAR_GFX_WA */ + +#endif diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h new file mode 100644 index 000000000000..2e117f30a76c --- /dev/null +++ b/include/linux/intel-iommu.h @@ -0,0 +1,327 @@ +/* + * Copyright (c) 2006, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + * Copyright (C) 2006-2008 Intel Corporation + * Author: Ashok Raj + * Author: Anil S Keshavamurthy + */ + +#ifndef _INTEL_IOMMU_H_ +#define _INTEL_IOMMU_H_ + +#include +#include +#include +#include +#include +#include +#include + +/* + * Intel IOMMU register specification per version 1.0 public spec. + */ + +#define DMAR_VER_REG 0x0 /* Arch version supported by this IOMMU */ +#define DMAR_CAP_REG 0x8 /* Hardware supported capabilities */ +#define DMAR_ECAP_REG 0x10 /* Extended capabilities supported */ +#define DMAR_GCMD_REG 0x18 /* Global command register */ +#define DMAR_GSTS_REG 0x1c /* Global status register */ +#define DMAR_RTADDR_REG 0x20 /* Root entry table */ +#define DMAR_CCMD_REG 0x28 /* Context command reg */ +#define DMAR_FSTS_REG 0x34 /* Fault Status register */ +#define DMAR_FECTL_REG 0x38 /* Fault control register */ +#define DMAR_FEDATA_REG 0x3c /* Fault event interrupt data register */ +#define DMAR_FEADDR_REG 0x40 /* Fault event interrupt addr register */ +#define DMAR_FEUADDR_REG 0x44 /* Upper address register */ +#define DMAR_AFLOG_REG 0x58 /* Advanced Fault control */ +#define DMAR_PMEN_REG 0x64 /* Enable Protected Memory Region */ +#define DMAR_PLMBASE_REG 0x68 /* PMRR Low addr */ +#define DMAR_PLMLIMIT_REG 0x6c /* PMRR low limit */ +#define DMAR_PHMBASE_REG 0x70 /* pmrr high base addr */ +#define DMAR_PHMLIMIT_REG 0x78 /* pmrr high limit */ +#define DMAR_IQH_REG 0x80 /* Invalidation queue head register */ +#define DMAR_IQT_REG 0x88 /* Invalidation queue tail register */ +#define DMAR_IQA_REG 0x90 /* Invalidation queue addr register */ +#define DMAR_ICS_REG 0x98 /* Invalidation complete status register */ +#define DMAR_IRTA_REG 0xb8 /* Interrupt remapping table addr register */ + +#define OFFSET_STRIDE (9) +/* +#define dmar_readl(dmar, reg) readl(dmar + reg) +#define dmar_readq(dmar, reg) ({ \ + u32 lo, hi; \ + lo = readl(dmar + reg); \ + hi = readl(dmar + reg + 4); \ + (((u64) hi) << 32) + lo; }) +*/ +static inline u64 dmar_readq(void __iomem *addr) +{ + u32 lo, hi; + lo = readl(addr); + hi = readl(addr + 4); + return (((u64) hi) << 32) + lo; +} + +static inline void dmar_writeq(void __iomem *addr, u64 val) +{ + writel((u32)val, addr); + writel((u32)(val >> 32), addr + 4); +} + +#define DMAR_VER_MAJOR(v) (((v) & 0xf0) >> 4) +#define DMAR_VER_MINOR(v) ((v) & 0x0f) + +/* + * Decoding Capability Register + */ +#define cap_read_drain(c) (((c) >> 55) & 1) +#define cap_write_drain(c) (((c) >> 54) & 1) +#define cap_max_amask_val(c) (((c) >> 48) & 0x3f) +#define cap_num_fault_regs(c) ((((c) >> 40) & 0xff) + 1) +#define cap_pgsel_inv(c) (((c) >> 39) & 1) + +#define cap_super_page_val(c) (((c) >> 34) & 0xf) +#define cap_super_offset(c) (((find_first_bit(&cap_super_page_val(c), 4)) \ + * OFFSET_STRIDE) + 21) + +#define cap_fault_reg_offset(c) ((((c) >> 24) & 0x3ff) * 16) +#define cap_max_fault_reg_offset(c) \ + (cap_fault_reg_offset(c) + cap_num_fault_regs(c) * 16) + +#define cap_zlr(c) (((c) >> 22) & 1) +#define cap_isoch(c) (((c) >> 23) & 1) +#define cap_mgaw(c) ((((c) >> 16) & 0x3f) + 1) +#define cap_sagaw(c) (((c) >> 8) & 0x1f) +#define cap_caching_mode(c) (((c) >> 7) & 1) +#define cap_phmr(c) (((c) >> 6) & 1) +#define cap_plmr(c) (((c) >> 5) & 1) +#define cap_rwbf(c) (((c) >> 4) & 1) +#define cap_afl(c) (((c) >> 3) & 1) +#define cap_ndoms(c) (((unsigned long)1) << (4 + 2 * ((c) & 0x7))) +/* + * Extended Capability Register + */ + +#define ecap_niotlb_iunits(e) ((((e) >> 24) & 0xff) + 1) +#define ecap_iotlb_offset(e) ((((e) >> 8) & 0x3ff) * 16) +#define ecap_max_iotlb_offset(e) \ + (ecap_iotlb_offset(e) + ecap_niotlb_iunits(e) * 16) +#define ecap_coherent(e) ((e) & 0x1) +#define ecap_qis(e) ((e) & 0x2) +#define ecap_eim_support(e) ((e >> 4) & 0x1) +#define ecap_ir_support(e) ((e >> 3) & 0x1) +#define ecap_max_handle_mask(e) ((e >> 20) & 0xf) + + +/* IOTLB_REG */ +#define DMA_TLB_GLOBAL_FLUSH (((u64)1) << 60) +#define DMA_TLB_DSI_FLUSH (((u64)2) << 60) +#define DMA_TLB_PSI_FLUSH (((u64)3) << 60) +#define DMA_TLB_IIRG(type) ((type >> 60) & 7) +#define DMA_TLB_IAIG(val) (((val) >> 57) & 7) +#define DMA_TLB_READ_DRAIN (((u64)1) << 49) +#define DMA_TLB_WRITE_DRAIN (((u64)1) << 48) +#define DMA_TLB_DID(id) (((u64)((id) & 0xffff)) << 32) +#define DMA_TLB_IVT (((u64)1) << 63) +#define DMA_TLB_IH_NONLEAF (((u64)1) << 6) +#define DMA_TLB_MAX_SIZE (0x3f) + +/* INVALID_DESC */ +#define DMA_ID_TLB_GLOBAL_FLUSH (((u64)1) << 3) +#define DMA_ID_TLB_DSI_FLUSH (((u64)2) << 3) +#define DMA_ID_TLB_PSI_FLUSH (((u64)3) << 3) +#define DMA_ID_TLB_READ_DRAIN (((u64)1) << 7) +#define DMA_ID_TLB_WRITE_DRAIN (((u64)1) << 6) +#define DMA_ID_TLB_DID(id) (((u64)((id & 0xffff) << 16))) +#define DMA_ID_TLB_IH_NONLEAF (((u64)1) << 6) +#define DMA_ID_TLB_ADDR(addr) (addr) +#define DMA_ID_TLB_ADDR_MASK(mask) (mask) + +/* PMEN_REG */ +#define DMA_PMEN_EPM (((u32)1)<<31) +#define DMA_PMEN_PRS (((u32)1)<<0) + +/* GCMD_REG */ +#define DMA_GCMD_TE (((u32)1) << 31) +#define DMA_GCMD_SRTP (((u32)1) << 30) +#define DMA_GCMD_SFL (((u32)1) << 29) +#define DMA_GCMD_EAFL (((u32)1) << 28) +#define DMA_GCMD_WBF (((u32)1) << 27) +#define DMA_GCMD_QIE (((u32)1) << 26) +#define DMA_GCMD_SIRTP (((u32)1) << 24) +#define DMA_GCMD_IRE (((u32) 1) << 25) + +/* GSTS_REG */ +#define DMA_GSTS_TES (((u32)1) << 31) +#define DMA_GSTS_RTPS (((u32)1) << 30) +#define DMA_GSTS_FLS (((u32)1) << 29) +#define DMA_GSTS_AFLS (((u32)1) << 28) +#define DMA_GSTS_WBFS (((u32)1) << 27) +#define DMA_GSTS_QIES (((u32)1) << 26) +#define DMA_GSTS_IRTPS (((u32)1) << 24) +#define DMA_GSTS_IRES (((u32)1) << 25) + +/* CCMD_REG */ +#define DMA_CCMD_ICC (((u64)1) << 63) +#define DMA_CCMD_GLOBAL_INVL (((u64)1) << 61) +#define DMA_CCMD_DOMAIN_INVL (((u64)2) << 61) +#define DMA_CCMD_DEVICE_INVL (((u64)3) << 61) +#define DMA_CCMD_FM(m) (((u64)((m) & 0x3)) << 32) +#define DMA_CCMD_MASK_NOBIT 0 +#define DMA_CCMD_MASK_1BIT 1 +#define DMA_CCMD_MASK_2BIT 2 +#define DMA_CCMD_MASK_3BIT 3 +#define DMA_CCMD_SID(s) (((u64)((s) & 0xffff)) << 16) +#define DMA_CCMD_DID(d) ((u64)((d) & 0xffff)) + +/* FECTL_REG */ +#define DMA_FECTL_IM (((u32)1) << 31) + +/* FSTS_REG */ +#define DMA_FSTS_PPF ((u32)2) +#define DMA_FSTS_PFO ((u32)1) +#define dma_fsts_fault_record_index(s) (((s) >> 8) & 0xff) + +/* FRCD_REG, 32 bits access */ +#define DMA_FRCD_F (((u32)1) << 31) +#define dma_frcd_type(d) ((d >> 30) & 1) +#define dma_frcd_fault_reason(c) (c & 0xff) +#define dma_frcd_source_id(c) (c & 0xffff) +#define dma_frcd_page_addr(d) (d & (((u64)-1) << 12)) /* low 64 bit */ + +#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */ + +#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ +{\ + cycles_t start_time = get_cycles();\ + while (1) {\ + sts = op (iommu->reg + offset);\ + if (cond)\ + break;\ + if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\ + panic("DMAR hardware is malfunctioning\n");\ + cpu_relax();\ + }\ +} + +#define QI_LENGTH 256 /* queue length */ + +enum { + QI_FREE, + QI_IN_USE, + QI_DONE +}; + +#define QI_CC_TYPE 0x1 +#define QI_IOTLB_TYPE 0x2 +#define QI_DIOTLB_TYPE 0x3 +#define QI_IEC_TYPE 0x4 +#define QI_IWD_TYPE 0x5 + +#define QI_IEC_SELECTIVE (((u64)1) << 4) +#define QI_IEC_IIDEX(idx) (((u64)(idx & 0xffff) << 32)) +#define QI_IEC_IM(m) (((u64)(m & 0x1f) << 27)) + +#define QI_IWD_STATUS_DATA(d) (((u64)d) << 32) +#define QI_IWD_STATUS_WRITE (((u64)1) << 5) + +struct qi_desc { + u64 low, high; +}; + +struct q_inval { + spinlock_t q_lock; + struct qi_desc *desc; /* invalidation queue */ + int *desc_status; /* desc status */ + int free_head; /* first free entry */ + int free_tail; /* last free entry */ + int free_cnt; +}; + +#ifdef CONFIG_INTR_REMAP +/* 1MB - maximum possible interrupt remapping table size */ +#define INTR_REMAP_PAGE_ORDER 8 +#define INTR_REMAP_TABLE_REG_SIZE 0xf + +#define INTR_REMAP_TABLE_ENTRIES 65536 + +struct ir_table { + struct irte *base; +}; +#endif + +struct intel_iommu { + void __iomem *reg; /* Pointer to hardware regs, virtual addr */ + u64 cap; + u64 ecap; + int seg; + u32 gcmd; /* Holds TE, EAFL. Don't need SRTP, SFL, WBF */ + spinlock_t register_lock; /* protect register handling */ + int seq_id; /* sequence id of the iommu */ + +#ifdef CONFIG_DMAR + unsigned long *domain_ids; /* bitmap of domains */ + struct dmar_domain **domains; /* ptr to domains */ + spinlock_t lock; /* protect context, domain ids */ + struct root_entry *root_entry; /* virtual address */ + + unsigned int irq; + unsigned char name[7]; /* Device Name */ + struct msi_msg saved_msg; + struct sys_device sysdev; +#endif + struct q_inval *qi; /* Queued invalidation info */ +#ifdef CONFIG_INTR_REMAP + struct ir_table *ir_table; /* Interrupt remapping info */ +#endif +}; + +static inline void __iommu_flush_cache( + struct intel_iommu *iommu, void *addr, int size) +{ + if (!ecap_coherent(iommu->ecap)) + clflush_cache_range(addr, size); +} + +extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev); + +extern int alloc_iommu(struct dmar_drhd_unit *drhd); +extern void free_iommu(struct intel_iommu *iommu); +extern int dmar_enable_qi(struct intel_iommu *iommu); +extern void qi_global_iec(struct intel_iommu *iommu); + +extern void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu); + +void intel_iommu_domain_exit(struct dmar_domain *domain); +struct dmar_domain *intel_iommu_domain_alloc(struct pci_dev *pdev); +int intel_iommu_context_mapping(struct dmar_domain *domain, + struct pci_dev *pdev); +int intel_iommu_page_mapping(struct dmar_domain *domain, dma_addr_t iova, + u64 hpa, size_t size, int prot); +void intel_iommu_detach_dev(struct dmar_domain *domain, u8 bus, u8 devfn); +struct dmar_domain *intel_iommu_find_domain(struct pci_dev *pdev); +u64 intel_iommu_iova_to_pfn(struct dmar_domain *domain, u64 iova); + +#ifdef CONFIG_DMAR +int intel_iommu_found(void); +#else /* CONFIG_DMAR */ +static inline int intel_iommu_found(void) +{ + return 0; +} +#endif /* CONFIG_DMAR */ + +#endif diff --git a/include/linux/iova.h b/include/linux/iova.h new file mode 100644 index 000000000000..228f6c94b69c --- /dev/null +++ b/include/linux/iova.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2006, Intel Corporation. + * + * This file is released under the GPLv2. + * + * Copyright (C) 2006-2008 Intel Corporation + * Author: Anil S Keshavamurthy + * + */ + +#ifndef _IOVA_H_ +#define _IOVA_H_ + +#include +#include +#include +#include + +/* IO virtual address start page frame number */ +#define IOVA_START_PFN (1) + +/* iova structure */ +struct iova { + struct rb_node node; + unsigned long pfn_hi; /* IOMMU dish out addr hi */ + unsigned long pfn_lo; /* IOMMU dish out addr lo */ +}; + +/* holds all the iova translations for a domain */ +struct iova_domain { + spinlock_t iova_alloc_lock;/* Lock to protect iova allocation */ + spinlock_t iova_rbtree_lock; /* Lock to protect update of rbtree */ + struct rb_root rbroot; /* iova domain rbtree root */ + struct rb_node *cached32_node; /* Save last alloced node */ + unsigned long dma_32bit_pfn; +}; + +struct iova *alloc_iova_mem(void); +void free_iova_mem(struct iova *iova); +void free_iova(struct iova_domain *iovad, unsigned long pfn); +void __free_iova(struct iova_domain *iovad, struct iova *iova); +struct iova *alloc_iova(struct iova_domain *iovad, unsigned long size, + unsigned long limit_pfn, + bool size_aligned); +struct iova *reserve_iova(struct iova_domain *iovad, unsigned long pfn_lo, + unsigned long pfn_hi); +void copy_reserved_iova(struct iova_domain *from, struct iova_domain *to); +void init_iova_domain(struct iova_domain *iovad, unsigned long pfn_32bit); +struct iova *find_iova(struct iova_domain *iovad, unsigned long pfn); +void put_iova_domain(struct iova_domain *iovad); + +#endif -- cgit v1.2.1 From 62c476c7c7f25a5b245b9902a935636e6316e58c Mon Sep 17 00:00:00 2001 From: Ben-Ami Yassour Date: Sun, 14 Sep 2008 03:48:28 +0300 Subject: KVM: Device Assignment with VT-d Based on a patch by: Kay, Allen M This patch enables PCI device assignment based on VT-d support. When a device is assigned to the guest, the guest memory is pinned and the mapping is updated in the VT-d IOMMU. [Amit: Expose KVM_CAP_IOMMU so we can check if an IOMMU is present and also control enable/disable from userspace] Signed-off-by: Kay, Allen M Signed-off-by: Weidong Han Signed-off-by: Ben-Ami Yassour Signed-off-by: Amit Shah Acked-by: Mark Gross Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 23 +++----------------- include/linux/kvm.h | 3 +++ include/linux/kvm_host.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 68a3ac13afce..805629c0f15f 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -331,26 +331,6 @@ struct kvm_mem_alias { gfn_t target_gfn; }; -struct kvm_irq_ack_notifier { - struct hlist_node link; - unsigned gsi; - void (*irq_acked)(struct kvm_irq_ack_notifier *kian); -}; - -struct kvm_assigned_dev_kernel { - struct kvm_irq_ack_notifier ack_notifier; - struct work_struct interrupt_work; - struct list_head list; - int assigned_dev_id; - int host_busnr; - int host_devfn; - int host_irq; - int guest_irq; - int irq_requested; - struct pci_dev *dev; - struct kvm *kvm; -}; - struct kvm_arch{ int naliases; struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; @@ -364,6 +344,7 @@ struct kvm_arch{ */ struct list_head active_mmu_pages; struct list_head assigned_dev_head; + struct dmar_domain *intel_iommu_domain; struct kvm_pic *vpic; struct kvm_ioapic *vioapic; struct kvm_pit *vpit; @@ -514,6 +495,8 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, gpa_t addr, unsigned long *ret); +int is_mmio_pfn(pfn_t pfn); + extern bool tdp_enabled; enum emulation_result { diff --git a/include/linux/kvm.h b/include/linux/kvm.h index ef4bc6f89778..4269be171faf 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -384,6 +384,7 @@ struct kvm_trace_rec { #define KVM_CAP_COALESCED_MMIO 15 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ #define KVM_CAP_DEVICE_ASSIGNMENT 17 +#define KVM_CAP_IOMMU 18 /* * ioctls for VM fds @@ -495,4 +496,6 @@ struct kvm_assigned_irq { __u32 flags; }; +#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0) + #endif diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 4b036430ea23..6252802c3cc0 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -286,6 +286,53 @@ int kvm_cpu_has_interrupt(struct kvm_vcpu *v); int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu); +struct kvm_irq_ack_notifier { + struct hlist_node link; + unsigned gsi; + void (*irq_acked)(struct kvm_irq_ack_notifier *kian); +}; + +struct kvm_assigned_dev_kernel { + struct kvm_irq_ack_notifier ack_notifier; + struct work_struct interrupt_work; + struct list_head list; + int assigned_dev_id; + int host_busnr; + int host_devfn; + int host_irq; + int guest_irq; + int irq_requested; + struct pci_dev *dev; + struct kvm *kvm; +}; + +#ifdef CONFIG_DMAR +int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn, + unsigned long npages); +int kvm_iommu_map_guest(struct kvm *kvm, + struct kvm_assigned_dev_kernel *assigned_dev); +int kvm_iommu_unmap_guest(struct kvm *kvm); +#else /* CONFIG_DMAR */ +static inline int kvm_iommu_map_pages(struct kvm *kvm, + gfn_t base_gfn, + unsigned long npages) +{ + return 0; +} + +static inline int kvm_iommu_map_guest(struct kvm *kvm, + struct kvm_assigned_dev_kernel + *assigned_dev) +{ + return -ENODEV; +} + +static inline int kvm_iommu_unmap_guest(struct kvm *kvm) +{ + return 0; +} +#endif /* CONFIG_DMAR */ + static inline void kvm_guest_enter(void) { account_system_vtime(current); @@ -308,6 +355,11 @@ static inline gpa_t gfn_to_gpa(gfn_t gfn) return (gpa_t)gfn << PAGE_SHIFT; } +static inline hpa_t pfn_to_hpa(pfn_t pfn) +{ + return (hpa_t)pfn << PAGE_SHIFT; +} + static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) { set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); -- cgit v1.2.1 From e8bc217aef67d41d767ede6e7a7eb10f1d47c86c Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 23 Sep 2008 13:18:33 -0300 Subject: KVM: MMU: mode specific sync_page Examine guest pagetable and bring the shadow back in sync. Caller is responsible for local TLB flush before re-entering guest mode. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 805629c0f15f..8bad9bd9b37e 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -220,6 +220,8 @@ struct kvm_mmu { gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); void (*prefetch_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page); + int (*sync_page)(struct kvm_vcpu *vcpu, + struct kvm_mmu_page *sp); hpa_t root_hpa; int root_level; int shadow_root_level; -- cgit v1.2.1 From 0ba73cdadb8ac172f396df7e23c4a9cebd59b550 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 23 Sep 2008 13:18:34 -0300 Subject: KVM: MMU: sync roots on mmu reload Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 8bad9bd9b37e..475d8ab83bff 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -584,6 +584,7 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); int kvm_mmu_load(struct kvm_vcpu *vcpu); void kvm_mmu_unload(struct kvm_vcpu *vcpu); +void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); -- cgit v1.2.1 From a7052897b3bcd568a9f5bfaa558957039e7e7ec0 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 23 Sep 2008 13:18:35 -0300 Subject: KVM: x86: trap invlpg With pages out of sync invlpg needs to be trapped. For now simply nuke the entry. Untested on AMD. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 475d8ab83bff..8b935cc4c14b 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -222,6 +222,7 @@ struct kvm_mmu { struct kvm_mmu_page *page); int (*sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp); + void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva); hpa_t root_hpa; int root_level; int shadow_root_level; @@ -591,6 +592,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); int kvm_fix_hypercall(struct kvm_vcpu *vcpu); int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); +void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva); void kvm_enable_tdp(void); void kvm_disable_tdp(void); -- cgit v1.2.1 From 4731d4c7a07769cf2926c327177b97bb8c68cafc Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 23 Sep 2008 13:18:39 -0300 Subject: KVM: MMU: out of sync shadow core Allow guest pagetables to go out of sync. Instead of emulating write accesses to guest pagetables, or unshadowing them, we un-write-protect the page table and allow the guest to modify it at will. We rely on invlpg executions to synchronize individual ptes, and will synchronize the entire pagetable on tlb flushes. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 3 +++ include/linux/kvm_host.h | 1 + 2 files changed, 4 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 8b935cc4c14b..7d36fcc02818 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -195,6 +195,8 @@ struct kvm_mmu_page { */ int multimapped; /* More than one parent_pte? */ int root_count; /* Currently serving as active root */ + bool unsync; + bool unsync_children; union { u64 *parent_pte; /* !multimapped */ struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ @@ -371,6 +373,7 @@ struct kvm_vm_stat { u32 mmu_flooded; u32 mmu_recycled; u32 mmu_cache_miss; + u32 mmu_unsync; u32 remote_tlb_flush; u32 lpages; }; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 6252802c3cc0..73b7c52b9493 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -35,6 +35,7 @@ #define KVM_REQ_TRIPLE_FAULT 4 #define KVM_REQ_PENDING_TIMER 5 #define KVM_REQ_UNHALT 6 +#define KVM_REQ_MMU_SYNC 7 struct kvm_vcpu; extern struct kmem_cache *kvm_vcpu_cache; -- cgit v1.2.1 From 0074ff63ebc195701062ca46e0d82fcea0fa3a0a Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 23 Sep 2008 13:18:40 -0300 Subject: KVM: MMU: speed up mmu_unsync_walk Cache the unsynced children information in a per-page bitmap. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 7d36fcc02818..0992d721c5f7 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -201,6 +201,7 @@ struct kvm_mmu_page { u64 *parent_pte; /* !multimapped */ struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ }; + DECLARE_BITMAP(unsync_child_bitmap, 512); }; struct kvm_pv_mmu_op_buffer { -- cgit v1.2.1 From e5fcfc821a467bd0827635db8fd39ab1213987e5 Mon Sep 17 00:00:00 2001 From: Weidong Han Date: Thu, 25 Sep 2008 23:32:02 +0800 Subject: KVM: Device Assignment: Map mmio pages into VT-d page table Assigned device could DMA to mmio pages, so also need to map mmio pages into VT-d page table. Signed-off-by: Weidong Han Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 0992d721c5f7..ca6bbc0bd97c 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -502,8 +502,6 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, gpa_t addr, unsigned long *ret); -int is_mmio_pfn(pfn_t pfn); - extern bool tdp_enabled; enum emulation_result { -- cgit v1.2.1 From 8a98f6648a2b0756d8f26d6c13332f5526355fec Mon Sep 17 00:00:00 2001 From: Xiantao Zhang Date: Mon, 6 Oct 2008 13:47:38 +0800 Subject: KVM: Move device assignment logic to common code To share with other archs, this patch moves device assignment logic to common parts. Signed-off-by: Xiantao Zhang Signed-off-by: Avi Kivity --- include/linux/kvm.h | 2 ++ include/linux/kvm_host.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 4269be171faf..9acf34a6dfbb 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -383,7 +383,9 @@ struct kvm_trace_rec { #define KVM_CAP_MP_STATE 14 #define KVM_CAP_COALESCED_MMIO 15 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ +#ifdef CONFIG_X86 #define KVM_CAP_DEVICE_ASSIGNMENT 17 +#endif #define KVM_CAP_IOMMU 18 /* diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 73b7c52b9493..10c1146cd009 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -281,6 +281,7 @@ void kvm_free_physmem(struct kvm *kvm); struct kvm *kvm_arch_create_vm(void); void kvm_arch_destroy_vm(struct kvm *kvm); +void kvm_free_all_assigned_devices(struct kvm *kvm); int kvm_cpu_get_interrupt(struct kvm_vcpu *v); int kvm_cpu_has_interrupt(struct kvm_vcpu *v); -- cgit v1.2.1 From c77fb9dc7a0383c86eabef30272a763a482403e1 Mon Sep 17 00:00:00 2001 From: Xiantao Zhang Date: Sat, 27 Sep 2008 10:55:40 +0800 Subject: KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs Add a kvm_ prefix to avoid polluting kernel's name space. Signed-off-by: Xiantao Zhang Signed-off-by: Avi Kivity --- include/linux/kvm_host.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 10c1146cd009..b3b7598b4d94 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -288,6 +288,8 @@ int kvm_cpu_has_interrupt(struct kvm_vcpu *v); int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu); +int kvm_is_mmio_pfn(pfn_t pfn); + struct kvm_irq_ack_notifier { struct hlist_node link; unsigned gsi; -- cgit v1.2.1 From 3de42dc094ecd313dc7d551e007a134b52f8663d Mon Sep 17 00:00:00 2001 From: Xiantao Zhang Date: Mon, 6 Oct 2008 13:48:45 +0800 Subject: KVM: Separate irq ack notification out of arch/x86/kvm/irq.c Moving irq ack notification logic as common, and make it shared with ia64 side. Signed-off-by: Xiantao Zhang Signed-off-by: Avi Kivity --- include/asm-x86/kvm_host.h | 2 ++ include/linux/kvm_host.h | 6 ++++++ 2 files changed, 8 insertions(+) (limited to 'include') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index ca6bbc0bd97c..411fb8cfb24e 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -565,6 +565,8 @@ void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2, u32 error_code); +void kvm_pic_set_irq(void *opaque, int irq, int level); + void kvm_inject_nmi(struct kvm_vcpu *vcpu); void fx_init(struct kvm_vcpu *vcpu); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index b3b7598b4d94..3833c48fae3a 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -309,6 +309,12 @@ struct kvm_assigned_dev_kernel { struct pci_dev *dev; struct kvm *kvm; }; +void kvm_set_irq(struct kvm *kvm, int irq, int level); +void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi); +void kvm_register_irq_ack_notifier(struct kvm *kvm, + struct kvm_irq_ack_notifier *kian); +void kvm_unregister_irq_ack_notifier(struct kvm *kvm, + struct kvm_irq_ack_notifier *kian); #ifdef CONFIG_DMAR int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn, -- cgit v1.2.1 From 2381ad241d0bea1253a37f314b270848067640bb Mon Sep 17 00:00:00 2001 From: Xiantao Zhang Date: Wed, 8 Oct 2008 08:29:33 +0800 Subject: KVM: ia64: Add intel iommu support for guests. With intel iommu hardware, we can assign devices to kvm/ia64 guests. Signed-off-by: Xiantao Zhang Signed-off-by: Avi Kivity --- include/linux/kvm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 9acf34a6dfbb..797fcd781242 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -383,7 +383,7 @@ struct kvm_trace_rec { #define KVM_CAP_MP_STATE 14 #define KVM_CAP_COALESCED_MMIO 15 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ -#ifdef CONFIG_X86 +#if defined(CONFIG_X86)||defined(CONFIG_IA64) #define KVM_CAP_DEVICE_ASSIGNMENT 17 #endif #define KVM_CAP_IOMMU 18 -- cgit v1.2.1 From f61f1b5717dec9968efd6c8d61bd73b7a61b72a0 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Wed, 15 Oct 2008 07:46:27 -0700 Subject: x86: fix compat-vdso Jeff Chua reported that this patch: > -#define PTE_IDENT_ATTR 0x007 /* PRESENT+RW+USER */ > -#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ > +#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ > +#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ broke kernels with CONFIG_COMPAT_VDSO set with this init segfault: init[1]: segfault at ffffe01c up b7f0dc28 sp bfc26628 error 5 in ld-2.7.90.so[b7f0b000+1c000] Include USER bit in the PDE_IDENT_ATTR only, as the protection bits are combined from the PDE and PTE entries. This will allow the high mapped VDSO page in the case of CONFIG_COMPAT_VDSO to be user readable. Reported-by: Jeff Chua Signed-off-by: Suresh Siddha Tested-by: Jeff Chua Signed-off-by: Ingo Molnar --- include/asm-x86/pgtable.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index ed932453ef26..e9f10af50f49 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -138,8 +138,13 @@ #ifdef CONFIG_X86_64 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC #else +/* + * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection + * bits are combined, this will alow user to access the high address mapped + * VDSO in the presence of CONFIG_COMPAT_VDSO + */ #define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ -#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ +#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ #endif -- cgit v1.2.1 From be585c07dd577faac26014db4246e6d7c7a131e7 Mon Sep 17 00:00:00 2001 From: Jay Fenlason Date: Wed, 1 Oct 2008 18:13:20 -0400 Subject: firewire: Add more documentation to firewire-cdev.h Signed-off-by: Jay Fenlason Signed-off-by: Stefan Richter --- include/linux/firewire-cdev.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h index 0f0e271f97fa..4d078e99c017 100644 --- a/include/linux/firewire-cdev.h +++ b/include/linux/firewire-cdev.h @@ -154,8 +154,13 @@ struct fw_cdev_event_iso_interrupt { * @request: Valid if @common.type == %FW_CDEV_EVENT_REQUEST * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT * - * Convenience union for userspace use. Events could be read(2) into a char - * buffer and then cast to this union for further processing. + * Convenience union for userspace use. Events could be read(2) into an + * appropriately aligned char buffer and then cast to this union for further + * processing. Note that for a request, response or iso_interrupt event, + * the data[] or header[] may make the size of the full event larger than + * sizeof(union fw_cdev_event). Also note that if you attempt to read(2) + * an event into a buffer that is not large enough for it, the data that does + * not fit will be discarded so that the next read(2) will return a new event. */ union fw_cdev_event { struct fw_cdev_event_common common; -- cgit v1.2.1 From 22441cfa0c70dcd457f3c081fcf285c3bd155824 Mon Sep 17 00:00:00 2001 From: Pedro Ribeiro Date: Wed, 15 Oct 2008 15:47:49 -0700 Subject: IPV6: Fix default gateway criteria wrt. HIGH/LOW preference radv option Problem observed: In IPv6, in the presence of multiple routers candidates to default gateway in one segment, each sending a different value of preference, the Linux hosts connected to the segment weren't selecting the right one in all the combinations possible of LOW/MEDIUM/HIGH preference. This patch changes two files: include/linux/icmpv6.h Get the "router_pref" bitfield in the right place (as RFC4191 says), named the bit left with this fix as "home_agent" (RFC3775 say that's his function) net/ipv6/ndisc.c Corrects the binary logic behind the updating of the router preference in the flags of the routing table Result: With this two fixes applied, the default route used by the system was to consistent with the rules mentioned in RFC4191 in case of changes in the value of preference in router advertisements Signed-off-by: Pedro Ribeiro Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/icmpv6.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h index 03067443198a..a93a8dd33118 100644 --- a/include/linux/icmpv6.h +++ b/include/linux/icmpv6.h @@ -40,16 +40,18 @@ struct icmp6hdr { struct icmpv6_nd_ra { __u8 hop_limit; #if defined(__LITTLE_ENDIAN_BITFIELD) - __u8 reserved:4, + __u8 reserved:3, router_pref:2, + home_agent:1, other:1, managed:1; #elif defined(__BIG_ENDIAN_BITFIELD) __u8 managed:1, other:1, + home_agent:1, router_pref:2, - reserved:4; + reserved:3; #else #error "Please fix " #endif -- cgit v1.2.1 From 0b59268285ca6cdc46191f2995bf632088e3e277 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Thu, 16 Oct 2008 15:39:57 +0200 Subject: [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY The SET_PERSONALITY macro is always called with a second argument of 0. Remove the ibcs argument and the various tests to set the PER_SVR4 personality. Signed-off-by: Martin Schwidefsky --- include/asm-cris/elf.h | 2 +- include/asm-frv/elf.h | 2 +- include/asm-m32r/elf.h | 2 +- include/asm-m68k/elf.h | 2 +- include/asm-mn10300/elf.h | 2 +- include/asm-parisc/elf.h | 2 +- include/asm-um/elf-i386.h | 2 +- include/asm-um/elf-ppc.h | 2 +- include/asm-um/elf-x86_64.h | 2 +- include/asm-x86/elf.h | 4 ++-- include/asm-xtensa/elf.h | 2 +- 11 files changed, 12 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-cris/elf.h b/include/asm-cris/elf.h index 001f64ad11e8..f0d17fbc81ba 100644 --- a/include/asm-cris/elf.h +++ b/include/asm-cris/elf.h @@ -88,6 +88,6 @@ typedef unsigned long elf_fpregset_t; #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif diff --git a/include/asm-frv/elf.h b/include/asm-frv/elf.h index 9fb946bb7dc9..7279ec07d62e 100644 --- a/include/asm-frv/elf.h +++ b/include/asm-frv/elf.h @@ -137,6 +137,6 @@ do { \ #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif diff --git a/include/asm-m32r/elf.h b/include/asm-m32r/elf.h index 67bcd77494a5..0cc34c94bf2b 100644 --- a/include/asm-m32r/elf.h +++ b/include/asm-m32r/elf.h @@ -129,6 +129,6 @@ typedef elf_fpreg_t elf_fpregset_t; intent than poking at uname or /proc/cpuinfo. */ #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif /* _ASM_M32R__ELF_H */ diff --git a/include/asm-m68k/elf.h b/include/asm-m68k/elf.h index 14ea42152b97..0b0f49eb876b 100644 --- a/include/asm-m68k/elf.h +++ b/include/asm-m68k/elf.h @@ -114,6 +114,6 @@ typedef struct user_m68kfp_struct elf_fpregset_t; #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif diff --git a/include/asm-mn10300/elf.h b/include/asm-mn10300/elf.h index 256a70466ca4..bf09f8bb392e 100644 --- a/include/asm-mn10300/elf.h +++ b/include/asm-mn10300/elf.h @@ -141,7 +141,7 @@ do { \ #define ELF_PLATFORM (NULL) #ifdef __KERNEL__ -#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif #endif /* _ASM_ELF_H */ diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h index d0a4a8262818..7fa675799e6d 100644 --- a/include/asm-parisc/elf.h +++ b/include/asm-parisc/elf.h @@ -236,7 +236,7 @@ typedef unsigned long elf_greg_t; #define ELF_PLATFORM ("PARISC\0") -#define SET_PERSONALITY(ex, ibcs2) \ +#define SET_PERSONALITY(ex) \ current->personality = PER_LINUX; \ current->thread.map_base = DEFAULT_MAP_BASE; \ current->thread.task_size = DEFAULT_TASK_SIZE \ diff --git a/include/asm-um/elf-i386.h b/include/asm-um/elf-i386.h index 23d6893e8617..d0da9d7c5371 100644 --- a/include/asm-um/elf-i386.h +++ b/include/asm-um/elf-i386.h @@ -86,7 +86,7 @@ extern long elf_aux_hwcap; extern char * elf_aux_platform; #define ELF_PLATFORM (elf_aux_platform) -#define SET_PERSONALITY(ex, ibcs2) do { } while (0) +#define SET_PERSONALITY(ex) do { } while (0) extern unsigned long vsyscall_ehdr; extern unsigned long vsyscall_end; diff --git a/include/asm-um/elf-ppc.h b/include/asm-um/elf-ppc.h index d3b90b7ac3e9..af9463cd8ce5 100644 --- a/include/asm-um/elf-ppc.h +++ b/include/asm-um/elf-ppc.h @@ -5,7 +5,7 @@ extern long elf_aux_hwcap; #define ELF_HWCAP (elf_aux_hwcap) -#define SET_PERSONALITY(ex, ibcs2) do ; while(0) +#define SET_PERSONALITY(ex) do ; while(0) #define ELF_EXEC_PAGESIZE 4096 diff --git a/include/asm-um/elf-x86_64.h b/include/asm-um/elf-x86_64.h index 3b2d5224a7e1..6e8a9195e952 100644 --- a/include/asm-um/elf-x86_64.h +++ b/include/asm-um/elf-x86_64.h @@ -114,6 +114,6 @@ extern long elf_aux_hwcap; #define ELF_PLATFORM "x86_64" -#define SET_PERSONALITY(ex, ibcs2) do ; while(0) +#define SET_PERSONALITY(ex) do ; while(0) #endif diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h index 5c4745bec906..26bc15f01e78 100644 --- a/include/asm-x86/elf.h +++ b/include/asm-x86/elf.h @@ -186,7 +186,7 @@ do { \ set_fs(USER_DS); \ } while (0) -#define COMPAT_SET_PERSONALITY(ex, ibcs2) \ +#define COMPAT_SET_PERSONALITY(ex) \ do { \ if (test_thread_flag(TIF_IA32)) \ clear_thread_flag(TIF_ABI_PENDING); \ @@ -267,7 +267,7 @@ extern int force_personality32; For the moment, we have only optimizations for the Intel generations, but that could change... */ -#define SET_PERSONALITY(ex, ibcs2) set_personality_64bit() +#define SET_PERSONALITY(ex) set_personality_64bit() /* * An executable for which elf_read_implies_exec() returns TRUE will diff --git a/include/asm-xtensa/elf.h b/include/asm-xtensa/elf.h index ca6e5101a2cb..c3f53e755ca5 100644 --- a/include/asm-xtensa/elf.h +++ b/include/asm-xtensa/elf.h @@ -189,7 +189,7 @@ typedef struct { #endif } elf_xtregs_t; -#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT) struct task_struct; -- cgit v1.2.1 From 29d434b39c807320fbe4bcdce0ab98a0b9fcb285 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 16 Oct 2008 16:08:57 +0200 Subject: fuse: add include protectors Add include protectors to include/linux/fuse.h and fs/fuse/fuse_i.h. Signed-off-by: Tejun Heo Signed-off-by: Miklos Szeredi --- include/linux/fuse.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 265635dc9908..8bc1101e9b35 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -19,6 +19,9 @@ * - add file flags field to fuse_read_in and fuse_write_in */ +#ifndef _LINUX_FUSE_H +#define _LINUX_FUSE_H + #include #include @@ -409,3 +412,5 @@ struct fuse_dirent { #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) #define FUSE_DIRENT_SIZE(d) \ FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) + +#endif /* _LINUX_FUSE_H */ -- cgit v1.2.1 From a7c1b990f71574e077b94ce4582e2cf11cb891fe Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 16 Oct 2008 16:08:57 +0200 Subject: fuse: implement nonseekable open Let the client request nonseekable open using FOPEN_NONSEEKABLE and call nonseekable_open() on the file if requested. Signed-off-by: Tejun Heo Signed-off-by: Miklos Szeredi --- include/linux/fuse.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 8bc1101e9b35..350fe9767bbc 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -17,6 +17,9 @@ * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in * - add blksize field to fuse_attr * - add file flags field to fuse_read_in and fuse_write_in + * + * 7.10 + * - add nonseekable open flag */ #ifndef _LINUX_FUSE_H @@ -29,7 +32,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 9 +#define FUSE_KERNEL_MINOR_VERSION 10 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -101,9 +104,11 @@ struct fuse_file_lock { * * FOPEN_DIRECT_IO: bypass page cache for this open file * FOPEN_KEEP_CACHE: don't invalidate the data cache on open + * FOPEN_NONSEEKABLE: the file is not seekable */ #define FOPEN_DIRECT_IO (1 << 0) #define FOPEN_KEEP_CACHE (1 << 1) +#define FOPEN_NONSEEKABLE (1 << 2) /** * INIT request/reply flags -- cgit v1.2.1 From 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Thu, 16 Oct 2008 10:09:17 -0400 Subject: vfs: Add no_nrwrite_index_update writeback control flag If no_nrwrite_index_update is set we don't update nr_to_write and address space writeback_index in write_cache_pages. This change enables a file system to skip these updates in write_cache_pages and do them in the writepages() callback. This patch will be followed by an ext4 patch that make use of these new flags. Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" CC: linux-fsdevel@vger.kernel.org --- include/linux/writeback.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index bd91987c065f..e585657e9831 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -63,6 +63,15 @@ struct writeback_control { unsigned for_writepages:1; /* This is a writepages() call */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ + /* + * write_cache_pages() won't update wbc->nr_to_write and + * mapping->writeback_index if no_nrwrite_index_update + * is set. write_cache_pages() may write more than we + * requested and we want to make sure nr_to_write and + * writeback_index are updated in a consistent manner + * so we use a single control to update them + */ + unsigned no_nrwrite_index_update:1; }; /* -- cgit v1.2.1 From 38395738f581ce9417402f28774a8c4650264a00 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:42 -0700 Subject: x86: remove irq_vectors_limits there's no user left. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/mach-generic/irq_vectors_limits.h | 14 -------------- include/asm-x86/summit/irq_vectors_limits.h | 14 -------------- 2 files changed, 28 deletions(-) delete mode 100644 include/asm-x86/mach-generic/irq_vectors_limits.h delete mode 100644 include/asm-x86/summit/irq_vectors_limits.h (limited to 'include') diff --git a/include/asm-x86/mach-generic/irq_vectors_limits.h b/include/asm-x86/mach-generic/irq_vectors_limits.h deleted file mode 100644 index f7870e1a220d..000000000000 --- a/include/asm-x86/mach-generic/irq_vectors_limits.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef ASM_X86__MACH_GENERIC__IRQ_VECTORS_LIMITS_H -#define ASM_X86__MACH_GENERIC__IRQ_VECTORS_LIMITS_H - -/* - * For Summit or generic (i.e. installer) kernels, we have lots of I/O APICs, - * even with uni-proc kernels, so use a big array. - * - * This value should be the same in both the generic and summit subarches. - * Change one, change 'em both. - */ -#define NR_IRQS 224 -#define NR_IRQ_VECTORS 1024 - -#endif /* ASM_X86__MACH_GENERIC__IRQ_VECTORS_LIMITS_H */ diff --git a/include/asm-x86/summit/irq_vectors_limits.h b/include/asm-x86/summit/irq_vectors_limits.h deleted file mode 100644 index 890ce3f5e09a..000000000000 --- a/include/asm-x86/summit/irq_vectors_limits.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef _ASM_IRQ_VECTORS_LIMITS_H -#define _ASM_IRQ_VECTORS_LIMITS_H - -/* - * For Summit or generic (i.e. installer) kernels, we have lots of I/O APICs, - * even with uni-proc kernels, so use a big array. - * - * This value should be the same in both the generic and summit subarches. - * Change one, change 'em both. - */ -#define NR_IRQS 224 -#define NR_IRQ_VECTORS 1024 - -#endif /* _ASM_IRQ_VECTORS_LIMITS_H */ -- cgit v1.2.1 From 3ddfda11861d305b02ed810b522dcf48b74ca808 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:43 -0700 Subject: generic: add dyn_array support Allow crazy big arrays via bootmem at init stage. Architectures use CONFIG_HAVE_DYN_ARRAY to enable it. usage: | static struct irq_desc irq_desc_init __initdata = { | .status = IRQ_DISABLED, | .chip = &no_irq_chip, | .handle_irq = handle_bad_irq, | .depth = 1, | .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock), | #ifdef CONFIG_SMP | .affinity = CPU_MASK_ALL | #endif | }; | | static void __init init_work(void *data) | { | struct dyn_array *da = data; | struct irq_desc *desc; | int i; | | desc = *da->name; | | for (i = 0; i < *da->nr; i++) | memcpy(&desc[i], &irq_desc_init, sizeof(struct irq_desc)); | } | | struct irq_desc *irq_desc; | DEFINE_DYN_ARRAY(irq_desc, sizeof(struct irq_desc), nr_irqs, PAGE_SIZE, init_work); after pre_alloc_dyn_array() after setup_arch(), the array is ready to be used. Via this facility we can replace irq_desc[NR_IRQS] array with dyn_array irq_desc[nr_irqs]. v2: remove _nopanic in pre_alloc_dyn_array() Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-generic/vmlinux.lds.h | 7 +++++++ include/linux/init.h | 23 +++++++++++++++++++++++ 2 files changed, 30 insertions(+) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7440a0dceddb..7881406c03ec 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -210,6 +210,13 @@ * All archs are supposed to use RO_DATA() */ #define RODATA RO_DATA(4096) +#define DYN_ARRAY_INIT(align) \ + . = ALIGN((align)); \ + .dyn_array.init : AT(ADDR(.dyn_array.init) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__dyn_array_start) = .; \ + *(.dyn_array.init) \ + VMLINUX_SYMBOL(__dyn_array_end) = .; \ + } #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__security_initcall_start) = .; \ diff --git a/include/linux/init.h b/include/linux/init.h index 93538b696e3d..cf9fa7f174af 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -246,6 +246,29 @@ struct obs_kernel_param { /* Relies on boot_command_line being set */ void __init parse_early_param(void); + +struct dyn_array { + void **name; + unsigned long size; + unsigned int *nr; + unsigned long align; + void (*init_work)(void *); +}; +extern struct dyn_array *__dyn_array_start[], *__dyn_array_end[]; + +#define DEFINE_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ + static struct dyn_array __dyn_array_##nameX __initdata = \ + { .name = (void **)&nameX,\ + .size = sizeX,\ + .nr = &nrX,\ + .align = alignX,\ + .init_work = init_workX,\ + }; \ + static struct dyn_array *__dyn_array_ptr_##nameX __used \ + __attribute__((__section__(".dyn_array.init"))) = \ + &__dyn_array_##nameX + +extern void pre_alloc_dyn_array(void); #endif /* __ASSEMBLY__ */ /** -- cgit v1.2.1 From 1f3fcd4b1adc972d5c6a34cfed98931c46575b49 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:44 -0700 Subject: add per_cpu_dyn_array support allow dyn-array in per_cpu area, allocated dynamically. usage: | /* in .h */ | struct kernel_stat { | struct cpu_usage_stat cpustat; | unsigned int *irqs; | }; | | /* in .c */ | DEFINE_PER_CPU(struct kernel_stat, kstat); | | DEFINE_PER_CPU_DYN_ARRAY_ADDR(per_cpu__kstat_irqs, per_cpu__kstat.irqs, sizeof(unsigned int), nr_irqs, sizeof(unsigned long), NULL); after setup_percpu()/per_cpu_alloc_dyn_array(), the dyn_array in per_cpu area is ready to use. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-generic/vmlinux.lds.h | 6 ++++++ include/linux/init.h | 27 ++++++++++++++++++++++++--- 2 files changed, 30 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7881406c03ec..c68eda9d9a90 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -216,6 +216,12 @@ VMLINUX_SYMBOL(__dyn_array_start) = .; \ *(.dyn_array.init) \ VMLINUX_SYMBOL(__dyn_array_end) = .; \ + } \ + . = ALIGN((align)); \ + .per_cpu_dyn_array.init : AT(ADDR(.per_cpu_dyn_array.init) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__per_cpu_dyn_array_start) = .; \ + *(.per_cpu_dyn_array.init) \ + VMLINUX_SYMBOL(__per_cpu_dyn_array_end) = .; \ } #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ diff --git a/include/linux/init.h b/include/linux/init.h index cf9fa7f174af..332806826b8e 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -255,12 +255,13 @@ struct dyn_array { void (*init_work)(void *); }; extern struct dyn_array *__dyn_array_start[], *__dyn_array_end[]; +extern struct dyn_array *__per_cpu_dyn_array_start[], *__per_cpu_dyn_array_end[]; -#define DEFINE_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ +#define DEFINE_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \ static struct dyn_array __dyn_array_##nameX __initdata = \ - { .name = (void **)&nameX,\ + { .name = (void **)&(nameX),\ .size = sizeX,\ - .nr = &nrX,\ + .nr = &(nrX),\ .align = alignX,\ .init_work = init_workX,\ }; \ @@ -268,7 +269,27 @@ extern struct dyn_array *__dyn_array_start[], *__dyn_array_end[]; __attribute__((__section__(".dyn_array.init"))) = \ &__dyn_array_##nameX +#define DEFINE_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ + DEFINE_DYN_ARRAY_ADDR(nameX, nameX, sizeX, nrX, alignX, init_workX) + +#define DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \ + static struct dyn_array __per_cpu_dyn_array_##nameX __initdata = \ + { .name = (void **)&(addrX),\ + .size = sizeX,\ + .nr = &(nrX),\ + .align = alignX,\ + .init_work = init_workX,\ + }; \ + static struct dyn_array *__per_cpu_dyn_array_ptr_##nameX __used \ + __attribute__((__section__(".per_cpu_dyn_array.init"))) = \ + &__per_cpu_dyn_array_##nameX + +#define DEFINE_PER_CPU_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ + DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, nameX, nrX, alignX, init_workX) + extern void pre_alloc_dyn_array(void); +extern unsigned long per_cpu_dyn_array_size(void); +extern void per_cpu_alloc_dyn_array(int cpu, char *ptr); #endif /* __ASSEMBLY__ */ /** -- cgit v1.2.1 From 1f8ff037a871690c762d267d8a052529d3102fc9 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:45 -0700 Subject: x86: alloc dyn_array all together so could spare some memory with small alignment in bootmem also tighten the alignment checking, and make print out less debug info. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/init.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/init.h b/include/linux/init.h index 332806826b8e..59fbb4aaba6a 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -288,7 +288,7 @@ extern struct dyn_array *__per_cpu_dyn_array_start[], *__per_cpu_dyn_array_end[] DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, nameX, nrX, alignX, init_workX) extern void pre_alloc_dyn_array(void); -extern unsigned long per_cpu_dyn_array_size(void); +extern unsigned long per_cpu_dyn_array_size(unsigned long *align); extern void per_cpu_alloc_dyn_array(int cpu, char *ptr); #endif /* __ASSEMBLY__ */ -- cgit v1.2.1 From 85c0f90978bf50596dbd23854648020f1f9b5bfd Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:47 -0700 Subject: irq: introduce nr_irqs at this point nr_irqs is equal NR_IRQS convert a few easy users from NR_IRQS to dynamic nr_irqs. v2: according to Eric, we need to take care of arch without generic_hardirqs Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/interrupt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 58ff4e74b2f3..511803853a5b 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -15,6 +15,8 @@ #include #include +extern int nr_irqs; + /* * These correspond to the IORESOURCE_IRQ_* defines in * linux/ioport.h to select the interrupt line behaviour. When -- cgit v1.2.1 From 0799e432acfda879eaeef9622426bfa1434f3786 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:49:48 -0700 Subject: x86: use nr_irqs also add first_free_entry and pin_map_size, which were NR_IRQS derived constants. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/irq.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-x86/irq.h b/include/asm-x86/irq.h index 1e5f2909c1db..2a130c44f5de 100644 --- a/include/asm-x86/irq.h +++ b/include/asm-x86/irq.h @@ -10,6 +10,9 @@ #include #include +extern int pin_map_size; +extern int first_free_entry; + static inline int irq_canonicalize(int irq) { return ((irq == 2) ? 9 : irq); -- cgit v1.2.1 From d60458b224d6b997a582a05cb8c4b9bed9e17a1d Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:00 -0700 Subject: irq: make irq_desc to use dyn_array Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 1d73d1abb834..5f4b013624dc 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -179,7 +179,11 @@ struct irq_desc { const char *name; } ____cacheline_internodealigned_in_smp; +#ifdef CONFIG_HAVE_DYN_ARRAY +extern struct irq_desc *irq_desc; +#else extern struct irq_desc irq_desc[NR_IRQS]; +#endif /* * Migration helpers for obsolete names, they will go away: -- cgit v1.2.1 From d17a55ded3393ad3878010bb3a8243a15a8d8df5 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:01 -0700 Subject: irq: make irqs in kernel stat use per_cpu_dyn_array Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/kernel_stat.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index cf9f40a91c9c..fe1f7fe534b4 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,7 +28,11 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned int *irqs; +#else unsigned int irqs[NR_IRQS]; +#endif }; DECLARE_PER_CPU(struct kernel_stat, kstat); -- cgit v1.2.1 From 71f521bbaf375b685aeea20c6b0ed8600cd6edfe Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:03 -0700 Subject: x86, irq: get nr_irqs from madt Until now, NR_IRQS was derived from black magic defines that had to be "large enough" to both accomodate NR_CPUS and MAX_NR_IO_APICs. This resulted in a way too large irq_desc[] array on most x86 systems. Especially with larger CPU masks, the size of irq_desc can spiral out of control quickly. So be smarter about it and use precise allocation instead: determine the default maximum possible IRQ number from the ACPI MADT. Use a minimum limit of at least 32 IRQs for broken BIOSes. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/mpspec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/mpspec.h b/include/asm-x86/mpspec.h index be2241a818f1..a0748021250b 100644 --- a/include/asm-x86/mpspec.h +++ b/include/asm-x86/mpspec.h @@ -60,6 +60,7 @@ extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi); extern void mp_config_acpi_legacy_irqs(void); extern int mp_register_gsi(u32 gsi, int edge_level, int active_high_low); +extern int get_nr_irqs_via_madt(void); #ifdef CONFIG_X86_IO_APIC extern int mp_config_acpi_gsi(unsigned char number, unsigned int devfn, u8 pin, u32 gsi, int triggering, int polarity); -- cgit v1.2.1 From bfea1238beac9d306eeac081c67de5ca6aec4c7a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:04 -0700 Subject: x86: remove nr_irq_vectors remove unused defines derived from the (now obsolete) NR_IRQS define. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/irq_vectors.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/asm-x86/irq_vectors.h b/include/asm-x86/irq_vectors.h index c5d2d767a1f3..cb09802ce651 100644 --- a/include/asm-x86/irq_vectors.h +++ b/include/asm-x86/irq_vectors.h @@ -116,7 +116,6 @@ # else # define NR_IRQS (NR_VECTORS + (32 * MAX_IO_APICS)) # endif -# define NR_IRQ_VECTORS NR_IRQS #elif !defined(CONFIG_X86_VOYAGER) @@ -124,23 +123,15 @@ # define NR_IRQS 224 -# if (224 >= 32 * NR_CPUS) -# define NR_IRQ_VECTORS NR_IRQS -# else -# define NR_IRQ_VECTORS (32 * NR_CPUS) -# endif - # else /* IO_APIC || PARAVIRT */ # define NR_IRQS 16 -# define NR_IRQ_VECTORS NR_IRQS # endif #else /* !VISWS && !VOYAGER */ # define NR_IRQS 224 -# define NR_IRQ_VECTORS NR_IRQS #endif /* VISWS */ -- cgit v1.2.1 From 08678b0841267c1d00d771fe01548d86043d065e Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:05 -0700 Subject: generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[] add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 5f4b013624dc..80b8200f2adb 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -152,6 +152,10 @@ struct irq_chip { * @name: flow handler name for /proc/interrupts output */ struct irq_desc { + unsigned int irq; +#ifdef CONFIG_HAVE_SPARSE_IRQ + struct irq_desc *next; +#endif irq_flow_handler_t handle_irq; struct irq_chip *chip; struct msi_desc *msi_desc; @@ -179,9 +183,9 @@ struct irq_desc { const char *name; } ____cacheline_internodealigned_in_smp; -#ifdef CONFIG_HAVE_DYN_ARRAY -extern struct irq_desc *irq_desc; -#else +extern struct irq_desc *irq_to_desc(unsigned int irq); +#ifndef CONFIG_HAVE_DYN_ARRAY +/* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; #endif @@ -249,7 +253,10 @@ extern int no_irq_affinity; static inline int irq_balancing_disabled(unsigned int irq) { - return irq_desc[irq].status & IRQ_NO_BALANCING_MASK; + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status & IRQ_NO_BALANCING_MASK; } /* Handle irq action chains: */ @@ -281,7 +288,7 @@ extern unsigned int __do_IRQ(unsigned int irq); */ static inline void generic_handle_irq(unsigned int irq) { - struct irq_desc *desc = irq_desc + irq; + struct irq_desc *desc = irq_to_desc(irq); #ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ desc->handle_irq(irq, desc); @@ -325,7 +332,10 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, static inline void __set_irq_handler_unlocked(int irq, irq_flow_handler_t handler) { - irq_desc[irq].handle_irq = handler; + struct irq_desc *desc; + + desc = irq_to_desc(irq); + desc->handle_irq = handler; } /* @@ -359,7 +369,7 @@ extern void destroy_irq(unsigned int irq); /* Test to see if a driver has successfully requested an irq */ static inline int irq_has_action(unsigned int irq) { - struct irq_desc *desc = irq_desc + irq; + struct irq_desc *desc = irq_to_desc(irq); return desc->action != NULL; } @@ -374,10 +384,10 @@ extern int set_irq_chip_data(unsigned int irq, void *data); extern int set_irq_type(unsigned int irq, unsigned int type); extern int set_irq_msi(unsigned int irq, struct msi_desc *entry); -#define get_irq_chip(irq) (irq_desc[irq].chip) -#define get_irq_chip_data(irq) (irq_desc[irq].chip_data) -#define get_irq_data(irq) (irq_desc[irq].handler_data) -#define get_irq_msi(irq) (irq_desc[irq].msi_desc) +#define get_irq_chip(irq) (irq_to_desc(irq)->chip) +#define get_irq_chip_data(irq) (irq_to_desc(irq)->chip_data) +#define get_irq_data(irq) (irq_to_desc(irq)->handler_data) +#define get_irq_msi(irq) (irq_to_desc(irq)->msi_desc) #endif /* CONFIG_GENERIC_HARDIRQS */ -- cgit v1.2.1 From 3060d6fe28570640c2d7d66d38b9eaa848c3b9e3 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:08 -0700 Subject: x86: put timer_rand_state pointer into irq_desc irq_timer_state[] is a NR_IRQS sized array that is a side-by array to the real irq_desc[] array. Integrate that field into the (now dynamic) irq_desc dynamic array and save some RAM. v2: keep the old way to support arch not support irq_desc Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 80b8200f2adb..60c856aaac0f 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -127,6 +127,7 @@ struct irq_chip { const char *typename; }; +struct timer_rand_state; /** * struct irq_desc - interrupt descriptor * @@ -155,6 +156,7 @@ struct irq_desc { unsigned int irq; #ifdef CONFIG_HAVE_SPARSE_IRQ struct irq_desc *next; + struct timer_rand_state *timer_rand_state; #endif irq_flow_handler_t handle_irq; struct irq_chip *chip; -- cgit v1.2.1 From 7f95ec9e4c12fd067febfd57532da1166d75d858 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:09 -0700 Subject: x86: move kstat_irqs from kstat to irq_desc based on Eric's patch ... together mold it with dyn_array for irq_desc, will allcate kstat_irqs for nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already. v2: make sure system without generic_hardirqs works they don't have irq_desc v3: fix merging v4: [mingo@elte.hu] fix typo [ mingo@elte.hu ] irq: build fix fix: arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow': arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs' Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 7 +++++++ include/linux/kernel_stat.h | 22 +++++++++++++++------- 2 files changed, 22 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 60c856aaac0f..cbf471aee1ce 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -157,6 +157,11 @@ struct irq_desc { #ifdef CONFIG_HAVE_SPARSE_IRQ struct irq_desc *next; struct timer_rand_state *timer_rand_state; +#endif +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned int *kstat_irqs; +#else + unsigned int kstat_irqs[NR_CPUS]; #endif irq_flow_handler_t handle_irq; struct irq_chip *chip; @@ -190,6 +195,8 @@ extern struct irq_desc *irq_to_desc(unsigned int irq); /* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; #endif +#define kstat_irqs_this_cpu(DESC) \ + ((DESC)->kstat_irqs[smp_processor_id()]) /* * Migration helpers for obsolete names, they will go away: diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index fe1f7fe534b4..f10616712de5 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,10 +28,8 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned int *irqs; -#else - unsigned int irqs[NR_IRQS]; +#ifndef CONFIG_GENERIC_HARDIRQS + unsigned int irqs[NR_IRQS]; #endif }; @@ -43,15 +41,25 @@ DECLARE_PER_CPU(struct kernel_stat, kstat); extern unsigned long long nr_context_switches(void); +#ifndef CONFIG_GENERIC_HARDIRQS +static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) +{ + return kstat_cpu(cpu).irqs[irq]; +} +#else +extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); +#endif + /* * Number of interrupts per specific IRQ source, since bootup */ -static inline int kstat_irqs(int irq) +static inline unsigned int kstat_irqs(unsigned int irq) { - int cpu, sum = 0; + unsigned int sum = 0; + int cpu; for_each_possible_cpu(cpu) - sum += kstat_cpu(cpu).irqs[irq]; + sum += kstat_irqs_cpu(irq, cpu); return sum; } -- cgit v1.2.1 From 9059d8fa4a3a9153da53da890039f7f956cc9d19 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:10 -0700 Subject: irq: add irq_desc_without_new add an irq_desc accessor that will not allocate any sparse entry but returns failure if there's no entry present. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index cbf471aee1ce..c9ffef7c3b44 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -191,10 +191,23 @@ struct irq_desc { } ____cacheline_internodealigned_in_smp; extern struct irq_desc *irq_to_desc(unsigned int irq); +extern struct irq_desc *__irq_to_desc(unsigned int irq); + +#ifndef CONFIG_HAVE_SPARSE_IRQ + #ifndef CONFIG_HAVE_DYN_ARRAY /* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; +#else +extern struct irq_desc *irq_desc; #endif + +#else + +extern struct irq_desc *sparse_irqs; + +#endif + #define kstat_irqs_this_cpu(DESC) \ ((DESC)->kstat_irqs[smp_processor_id()]) -- cgit v1.2.1 From 2c6927a38f65b53b62f86158fba29a068c4e8b6a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:11 -0700 Subject: irq: replace loop with nr_irqs with for_each_irq_desc There are a handful of loops that go from 0 to nr_irqs and use get_irq_desc() on them. These would allocate all the irq_desc entries, regardless of the need for them. Use the smarter for_each_irq_desc() iterator that will only iterate over the present ones. v2: make sure arch without GENERIC_HARDIRQS work too Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index c9ffef7c3b44..9de16ca8b8e5 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -202,9 +202,16 @@ extern struct irq_desc irq_desc[NR_IRQS]; extern struct irq_desc *irq_desc; #endif +#ifdef CONFIG_GENERIC_HARDIRQS +#define for_each_irq_desc(irq, desc) \ + for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc = &irq_desc[irq]) +#endif + #else extern struct irq_desc *sparse_irqs; +#define for_each_irq_desc(irqX, desc) \ + for (desc = sparse_irqs, irqX = desc->irq; desc && irqX != -1U; desc = desc->next, irqX = desc ? desc->irq : -1U) #endif -- cgit v1.2.1 From c7fb03a475bd80c642c1345d85c7c550f63514b8 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:12 -0700 Subject: irq, fs/proc: replace loop with nr_irqs for proc/stat Replace another nr_irqs loop to avoid the allocation of all sparse irq entries - use for_each_irq_desc instead. v2: make sure arch without GENERIC_HARDIRQS works too Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/interrupt.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 511803853a5b..d4039a0b23f4 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -17,6 +17,11 @@ extern int nr_irqs; +#ifndef CONFIG_GENERIC_HARDIRQS +#define for_each_irq_desc(irq, desc) \ + for (irq = 0; irq < nr_irqs; irq++) +#endif + /* * These correspond to the IORESOURCE_IRQ_* defines in * linux/ioport.h to select the interrupt line behaviour. When -- cgit v1.2.1 From 46926b67fc663d357a1a8174328998a9e49da0b8 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:15 -0700 Subject: generic: add irq_desc in function in parameter So we could remove some duplicated calling to irq_desc v2: make sure irq_desc in init/main.c is not used without generic_hardirqs Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 9de16ca8b8e5..7b59e193a119 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -315,10 +315,8 @@ extern unsigned int __do_IRQ(unsigned int irq); * irqchip-style controller then we call the ->handle_irq() handler, * and it calls __do_IRQ() if it's attached to an irqtype-style controller. */ -static inline void generic_handle_irq(unsigned int irq) +static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc) { - struct irq_desc *desc = irq_to_desc(irq); - #ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ desc->handle_irq(irq, desc); #else @@ -329,6 +327,11 @@ static inline void generic_handle_irq(unsigned int irq) #endif } +static inline void generic_handle_irq(unsigned int irq) +{ + generic_handle_irq_desc(irq, irq_to_desc(irq)); +} + /* Handling of unhandled and spurious interrupts: */ extern void note_interrupt(unsigned int irq, struct irq_desc *desc, int action_ret); -- cgit v1.2.1 From cb5bc83225a86ca53bbb889ed8439e4fd6cf44ac Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:17 -0700 Subject: x86_64: rename irq_desc/irq_desc_alloc change names: irq_desc() ==> irq_desc_alloc __irq_desc() ==> irq_desc Also split a few of the uses in lowlevel x86 code. v2: need to check if desc is null in smp_irq_move_cleanup Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 7b59e193a119..5fe1b01c11fe 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -191,7 +191,7 @@ struct irq_desc { } ____cacheline_internodealigned_in_smp; extern struct irq_desc *irq_to_desc(unsigned int irq); -extern struct irq_desc *__irq_to_desc(unsigned int irq); +extern struct irq_desc *irq_to_desc_alloc(unsigned int irq); #ifndef CONFIG_HAVE_SPARSE_IRQ -- cgit v1.2.1 From 67fb283e148e9bd761f73691d3173b6eab9ba8db Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:18 -0700 Subject: irq: separate sparse_irqs from sparse_irqs_free so later don't need compare with -1U Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 5fe1b01c11fe..d5749852ee69 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -211,7 +211,7 @@ extern struct irq_desc *irq_desc; extern struct irq_desc *sparse_irqs; #define for_each_irq_desc(irqX, desc) \ - for (desc = sparse_irqs, irqX = desc->irq; desc && irqX != -1U; desc = desc->next, irqX = desc ? desc->irq : -1U) + for (desc = sparse_irqs, irqX = desc->irq; desc; desc = desc->next, irqX = desc ? desc->irq : -1U) #endif -- cgit v1.2.1 From e420dfb40c453a9760b86c7f338052bdb4dfa755 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:21 -0700 Subject: x86: put irq_2_iommu pointer into irq_desc when CONFIG_HAVE_SPARSE_IRQ preallocate some irq_2_iommu entries, and use get_one_free_irq_2_iomm to get new one and link to irq_desc if needed. else will use dyn_array or static array. v2: <= nr_irqs fix Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index d5749852ee69..788d5a35a580 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -128,6 +128,7 @@ struct irq_chip { }; struct timer_rand_state; +struct irq_2_iommu; /** * struct irq_desc - interrupt descriptor * @@ -162,6 +163,9 @@ struct irq_desc { unsigned int *kstat_irqs; #else unsigned int kstat_irqs[NR_CPUS]; +#endif +#if defined(CONFIG_INTR_REMAP) && defined(CONFIG_HAVE_SPARSE_IRQ) + struct irq_2_iommu *irq_2_iommu; #endif irq_flow_handler_t handle_irq; struct irq_chip *chip; -- cgit v1.2.1 From 6d50bc26836e16a9589e0b128d527c29e30d722a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:22 -0700 Subject: x86: use 28 bits irq NR for pci msi/msix and ht also print out irq no in /proc/interrups and /proc/stat in hex, so could tell bus/dev/func. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 788d5a35a580..704136138dc7 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -399,6 +399,7 @@ extern void set_irq_noprobe(unsigned int irq); extern void set_irq_probe(unsigned int irq); /* Handle dynamic irq creation and destruction */ +extern unsigned int create_irq_nr(unsigned int irq_want); extern int create_irq(void); extern void destroy_irq(unsigned int irq); -- cgit v1.2.1 From 8b8e8c1bf7275eca859fe551dfa484134eaf013b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:23 -0700 Subject: x86: remove irqbalance in kernel for 32 bit This has been deprecated for years, the user space irqbalanced utility works better with numa, has configurable policies, etc... Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 704136138dc7..2445d2b3d5dc 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -185,7 +185,7 @@ struct irq_desc { cpumask_t affinity; unsigned int cpu; #endif -#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE) +#ifdef CONFIG_GENERIC_PENDING_IRQ cpumask_t pending_mask; #endif #ifdef CONFIG_PROC_FS @@ -241,13 +241,13 @@ extern int setup_irq(unsigned int irq, struct irqaction *new); #ifdef CONFIG_SMP -#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE) +#ifdef CONFIG_GENERIC_PENDING_IRQ void set_pending_irq(unsigned int irq, cpumask_t mask); void move_native_irq(int irq); void move_masked_irq(int irq); -#else /* CONFIG_GENERIC_PENDING_IRQ || CONFIG_IRQBALANCE */ +#else /* CONFIG_GENERIC_PENDING_IRQ */ static inline void move_irq(int irq) { @@ -274,14 +274,6 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask) #endif /* CONFIG_SMP */ -#ifdef CONFIG_IRQBALANCE -extern void set_balance_irq_affinity(unsigned int irq, cpumask_t mask); -#else -static inline void set_balance_irq_affinity(unsigned int irq, cpumask_t mask) -{ -} -#endif - extern int no_irq_affinity; static inline int irq_balancing_disabled(unsigned int irq) -- cgit v1.2.1 From 497c9a195db918d3f035e8cb3021e5d4d035516e Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:28 -0700 Subject: x86: make 32bit support per_cpu vector so we can merge io_apic_32.c and io_apic_64.c v2: Use cpu_online_map as target cpus for bigsmp, just like 64-bit is doing. Also remove some unused TARGET_CPUS macro. v3: need to check if desc is null in smp_irq_move_cleanup also migration needs to reset vector too, so copy __target_IO_APIC_irq from 64bit. (the duplication will go away once the two files are unified.) Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/bigsmp/apic.h | 15 +++++---------- include/asm-x86/es7000/apic.h | 3 +-- include/asm-x86/genapic_32.h | 2 ++ include/asm-x86/hw_irq.h | 6 +++--- include/asm-x86/irq_vectors.h | 15 +++------------ include/asm-x86/mach-default/entry_arch.h | 1 + include/asm-x86/mach-default/mach_apic.h | 15 ++++++++++++++- include/asm-x86/mach-generic/mach_apic.h | 1 + include/asm-x86/numaq/apic.h | 2 -- include/asm-x86/summit/apic.h | 1 - 10 files changed, 30 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/include/asm-x86/bigsmp/apic.h b/include/asm-x86/bigsmp/apic.h index 0a9cd7c5ca0c..1d9543b9d358 100644 --- a/include/asm-x86/bigsmp/apic.h +++ b/include/asm-x86/bigsmp/apic.h @@ -9,22 +9,17 @@ static inline int apic_id_registered(void) return (1); } -/* Round robin the irqs amoung the online cpus */ static inline cpumask_t target_cpus(void) { - static unsigned long cpu = NR_CPUS; - do { - if (cpu >= NR_CPUS) - cpu = first_cpu(cpu_online_map); - else - cpu = next_cpu(cpu, cpu_online_map); - } while (cpu >= NR_CPUS); - return cpumask_of_cpu(cpu); +#ifdef CONFIG_SMP + return cpu_online_map; +#else + return cpumask_of_cpu(0); +#endif } #undef APIC_DEST_LOGICAL #define APIC_DEST_LOGICAL 0 -#define TARGET_CPUS (target_cpus()) #define APIC_DFR_VALUE (APIC_DFR_FLAT) #define INT_DELIVERY_MODE (dest_Fixed) #define INT_DEST_MODE (0) /* phys delivery to target proc */ diff --git a/include/asm-x86/es7000/apic.h b/include/asm-x86/es7000/apic.h index bd2c44d1f7ac..750afada5fbf 100644 --- a/include/asm-x86/es7000/apic.h +++ b/include/asm-x86/es7000/apic.h @@ -17,7 +17,6 @@ static inline cpumask_t target_cpus(void) return cpumask_of_cpu(smp_processor_id()); #endif } -#define TARGET_CPUS (target_cpus()) #if defined CONFIG_ES7000_CLUSTERED_APIC #define APIC_DFR_VALUE (APIC_DFR_CLUSTER) @@ -81,7 +80,7 @@ static inline void setup_apic_routing(void) int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id()); printk("Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n", (apic_version[apic] == 0x14) ? - "Physical Cluster" : "Logical Cluster", nr_ioapics, cpus_addr(TARGET_CPUS)[0]); + "Physical Cluster" : "Logical Cluster", nr_ioapics, cpus_addr(target_cpus())[0]); } static inline int multi_timer_check(int apic, int irq) diff --git a/include/asm-x86/genapic_32.h b/include/asm-x86/genapic_32.h index 34280f027664..6fe4f81bfcf9 100644 --- a/include/asm-x86/genapic_32.h +++ b/include/asm-x86/genapic_32.h @@ -57,6 +57,7 @@ struct genapic { unsigned (*get_apic_id)(unsigned long x); unsigned long apic_id_mask; unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask); + cpumask_t (*vector_allocation_domain)(int cpu); #ifdef CONFIG_SMP /* ipi */ @@ -104,6 +105,7 @@ struct genapic { APICFUNC(get_apic_id) \ .apic_id_mask = APIC_ID_MASK, \ APICFUNC(cpu_mask_to_apicid) \ + APICFUNC(vector_allocation_domain) \ APICFUNC(acpi_madt_oem_check) \ IPIFUNC(send_IPI_mask) \ IPIFUNC(send_IPI_allbutself) \ diff --git a/include/asm-x86/hw_irq.h b/include/asm-x86/hw_irq.h index 50f6e0316b50..51c787d17cbc 100644 --- a/include/asm-x86/hw_irq.h +++ b/include/asm-x86/hw_irq.h @@ -116,12 +116,12 @@ extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); #ifdef CONFIG_X86_32 extern void (*const interrupt[NR_IRQS])(void); -#else +#endif + typedef int vector_irq_t[NR_VECTORS]; DECLARE_PER_CPU(vector_irq_t, vector_irq); -#endif -#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_X86_64) +#ifdef CONFIG_X86_IO_APIC extern void lock_vector_lock(void); extern void unlock_vector_lock(void); extern void __setup_vector_irq(int cpu); diff --git a/include/asm-x86/irq_vectors.h b/include/asm-x86/irq_vectors.h index cb09802ce651..a8d065d85f57 100644 --- a/include/asm-x86/irq_vectors.h +++ b/include/asm-x86/irq_vectors.h @@ -19,19 +19,14 @@ /* * Reserve the lowest usable priority level 0x20 - 0x2f for triggering - * cleanup after irq migration on 64 bit. + * cleanup after irq migration. */ #define IRQ_MOVE_CLEANUP_VECTOR FIRST_EXTERNAL_VECTOR /* - * Vectors 0x20-0x2f are used for ISA interrupts on 32 bit. - * Vectors 0x30-0x3f are used for ISA interrupts on 64 bit. + * Vectors 0x30-0x3f are used for ISA interrupts. */ -#ifdef CONFIG_X86_32 -#define IRQ0_VECTOR (FIRST_EXTERNAL_VECTOR) -#else #define IRQ0_VECTOR (FIRST_EXTERNAL_VECTOR + 0x10) -#endif #define IRQ1_VECTOR (IRQ0_VECTOR + 1) #define IRQ2_VECTOR (IRQ0_VECTOR + 2) #define IRQ3_VECTOR (IRQ0_VECTOR + 3) @@ -96,11 +91,7 @@ * start at 0x31(0x41) to spread out vectors evenly between priority * levels. (0x80 is the syscall vector) */ -#ifdef CONFIG_X86_32 -# define FIRST_DEVICE_VECTOR 0x31 -#else -# define FIRST_DEVICE_VECTOR (IRQ15_VECTOR + 2) -#endif +#define FIRST_DEVICE_VECTOR (IRQ15_VECTOR + 2) #define NR_VECTORS 256 diff --git a/include/asm-x86/mach-default/entry_arch.h b/include/asm-x86/mach-default/entry_arch.h index 9283b60a1dd2..6b1add8e31dd 100644 --- a/include/asm-x86/mach-default/entry_arch.h +++ b/include/asm-x86/mach-default/entry_arch.h @@ -14,6 +14,7 @@ BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR) BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR) BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR) BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR) +BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR) #endif /* diff --git a/include/asm-x86/mach-default/mach_apic.h b/include/asm-x86/mach-default/mach_apic.h index 2a330a41b3dd..3c66f2cdaec1 100644 --- a/include/asm-x86/mach-default/mach_apic.h +++ b/include/asm-x86/mach-default/mach_apic.h @@ -85,6 +85,20 @@ static inline int apicid_to_node(int logical_apicid) return 0; #endif } + +static inline cpumask_t vector_allocation_domain(int cpu) +{ + /* Careful. Some cpus do not strictly honor the set of cpus + * specified in the interrupt destination when using lowest + * priority interrupt delivery mode. + * + * In particular there was a hyperthreading cpu observed to + * deliver interrupts to the wrong hyperthread when only one + * hyperthread was specified in the interrupt desitination. + */ + cpumask_t domain = { { [0] = APIC_ALL_CPUS, } }; + return domain; +} #endif static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid) @@ -138,6 +152,5 @@ static inline int check_phys_apicid_present(int boot_cpu_physical_apicid) static inline void enable_apic_mode(void) { } - #endif /* CONFIG_X86_LOCAL_APIC */ #endif /* ASM_X86__MACH_DEFAULT__MACH_APIC_H */ diff --git a/include/asm-x86/mach-generic/mach_apic.h b/include/asm-x86/mach-generic/mach_apic.h index 5d010c6881dd..5085b52da301 100644 --- a/include/asm-x86/mach-generic/mach_apic.h +++ b/include/asm-x86/mach-generic/mach_apic.h @@ -24,6 +24,7 @@ #define check_phys_apicid_present (genapic->check_phys_apicid_present) #define check_apicid_used (genapic->check_apicid_used) #define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid) +#define vector_allocation_domain (genapic->vector_allocation_domain) #define enable_apic_mode (genapic->enable_apic_mode) #define phys_pkg_id (genapic->phys_pkg_id) diff --git a/include/asm-x86/numaq/apic.h b/include/asm-x86/numaq/apic.h index a8344ba6ea15..0bf2a06b7a4e 100644 --- a/include/asm-x86/numaq/apic.h +++ b/include/asm-x86/numaq/apic.h @@ -12,8 +12,6 @@ static inline cpumask_t target_cpus(void) return CPU_MASK_ALL; } -#define TARGET_CPUS (target_cpus()) - #define NO_BALANCE_IRQ (1) #define esr_disable (1) diff --git a/include/asm-x86/summit/apic.h b/include/asm-x86/summit/apic.h index c5b2e4b10358..0f68037b8f24 100644 --- a/include/asm-x86/summit/apic.h +++ b/include/asm-x86/summit/apic.h @@ -22,7 +22,6 @@ static inline cpumask_t target_cpus(void) */ return cpumask_of_cpu(0); } -#define TARGET_CPUS (target_cpus()) #define INT_DELIVERY_MODE (dest_LowestPrio) #define INT_DEST_MODE 1 /* logical delivery broadcast to all procs */ -- cgit v1.2.1 From d83e94acd95789829804fd9e442bd18975f4dc89 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:33 -0700 Subject: x86, io-apic: remove union about dest for log/phy let user decide the meaning of the bits. This unifies the 32-bit and 64-bit io-apic code a bit. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/io_apic.h | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'include') diff --git a/include/asm-x86/io_apic.h b/include/asm-x86/io_apic.h index 8ec68a50cf10..ce818292d2c7 100644 --- a/include/asm-x86/io_apic.h +++ b/include/asm-x86/io_apic.h @@ -87,24 +87,8 @@ struct IO_APIC_route_entry { mask : 1, /* 0: enabled, 1: disabled */ __reserved_2 : 15; -#ifdef CONFIG_X86_32 - union { - struct { - __u32 __reserved_1 : 24, - physical_dest : 4, - __reserved_2 : 4; - } physical; - - struct { - __u32 __reserved_1 : 24, - logical_dest : 8; - } logical; - } dest; -#else __u32 __reserved_3 : 24, dest : 8; -#endif - } __attribute__ ((packed)); struct IR_IO_APIC_route_entry { -- cgit v1.2.1 From aa45f97b1bb40adae1288669e73350907ffae85e Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:40 -0700 Subject: x86: remove ioapic_force no user left. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/apic.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index d76a0839abe9..2d970f6bc2a1 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -40,8 +40,6 @@ extern void generic_apic_probe(void); extern unsigned int apic_verbosity; extern int local_apic_timer_c2_ok; -extern int ioapic_force; - extern int disable_apic; /* * Basic functions accessing APICs. -- cgit v1.2.1 From 42379b1122bab7f9aefdbd4b7004a6fa89dfbae5 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:45 -0700 Subject: pci: change msi-x vector to 32bit we are using 28bit pci (bus/dev/fn + 12 bits) as irq number, so the cache for irq number should be 32 bit too. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 98dc6243a706..1f8db240ca48 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -723,7 +723,7 @@ enum pci_dma_burst_strategy { }; struct msix_entry { - u16 vector; /* kernel uses to write allocated vector */ + u32 vector; /* kernel uses to write allocated vector */ u16 entry; /* driver uses to specify entry, OS writes */ }; -- cgit v1.2.1 From bcd562607f17b0c9f9ae96af849894dd06645f63 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:46 -0700 Subject: x86: irq: interrupt array size should be NR_VECTORS Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/hw_irq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/hw_irq.h b/include/asm-x86/hw_irq.h index 51c787d17cbc..39c7a4745d25 100644 --- a/include/asm-x86/hw_irq.h +++ b/include/asm-x86/hw_irq.h @@ -115,7 +115,7 @@ extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); #endif #ifdef CONFIG_X86_32 -extern void (*const interrupt[NR_IRQS])(void); +extern void (*const interrupt[NR_VECTORS])(void); #endif typedef int vector_irq_t[NR_VECTORS]; -- cgit v1.2.1 From 29ccbbf232c035b8c7ff0c5060fbe30a66ed9b99 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:49 -0700 Subject: x86: remove first_free_entry/pin_map_size no user now Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/irq.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/irq.h b/include/asm-x86/irq.h index 2a130c44f5de..1e5f2909c1db 100644 --- a/include/asm-x86/irq.h +++ b/include/asm-x86/irq.h @@ -10,9 +10,6 @@ #include #include -extern int pin_map_size; -extern int first_free_entry; - static inline int irq_canonicalize(int irq) { return ((irq == 2) ? 9 : irq); -- cgit v1.2.1 From 9d6a4d0823b3b8e29156f5e698b5a68687afad32 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:52 -0700 Subject: x86: probe nr_irqs even only mptable is used for !CONFIG_HAVE_SPARSE_IRQ fix: In file included from arch/x86/kernel/early-quirks.c:18: include/asm/io_apic.h: In function 'probe_nr_irqs': include/asm/io_apic.h:209: error: 'NR_IRQS' undeclared (first use in this function) include/asm/io_apic.h:209: error: (Each undeclared identifier is reported only once include/asm/io_apic.h:209: error: for each function it appears in.) v2: fix by Ingo Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/asm-x86/io_apic.h | 8 ++++++++ include/asm-x86/mpspec.h | 1 - 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/io_apic.h b/include/asm-x86/io_apic.h index ce818292d2c7..d35cbd7aa587 100644 --- a/include/asm-x86/io_apic.h +++ b/include/asm-x86/io_apic.h @@ -4,6 +4,7 @@ #include #include #include +#include /* * Intel IO-APIC support for SMP and UP systems. @@ -187,10 +188,17 @@ extern void restore_IO_APIC_setup(void); extern void reinit_intr_remapped_IO_APIC(int); #endif +extern int probe_nr_irqs(void); + #else /* !CONFIG_X86_IO_APIC */ #define io_apic_assign_pci_irqs 0 static const int timer_through_8259 = 0; static inline void ioapic_init_mappings(void) { } + +static inline int probe_nr_irqs(void) +{ + return NR_IRQS; +} #endif #endif /* ASM_X86__IO_APIC_H */ diff --git a/include/asm-x86/mpspec.h b/include/asm-x86/mpspec.h index a0748021250b..be2241a818f1 100644 --- a/include/asm-x86/mpspec.h +++ b/include/asm-x86/mpspec.h @@ -60,7 +60,6 @@ extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi); extern void mp_config_acpi_legacy_irqs(void); extern int mp_register_gsi(u32 gsi, int edge_level, int active_high_low); -extern int get_nr_irqs_via_madt(void); #ifdef CONFIG_X86_IO_APIC extern int mp_config_acpi_gsi(unsigned char number, unsigned int devfn, u8 pin, u32 gsi, int triggering, int polarity); -- cgit v1.2.1 From 8c464a4b23ca283b414022ebc77787f3c7040fa7 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 25 Aug 2008 12:41:19 -0700 Subject: sparseirq: move kstat_irqs from kstat to irq_desc - fix fix non-sparseirq architectures. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- include/linux/irq.h | 4 ++-- include/linux/kernel_stat.h | 10 ++++++++-- 2 files changed, 10 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 2445d2b3d5dc..93fe9a943e71 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -161,8 +161,6 @@ struct irq_desc { #endif #ifdef CONFIG_HAVE_DYN_ARRAY unsigned int *kstat_irqs; -#else - unsigned int kstat_irqs[NR_CPUS]; #endif #if defined(CONFIG_INTR_REMAP) && defined(CONFIG_HAVE_SPARSE_IRQ) struct irq_2_iommu *irq_2_iommu; @@ -219,8 +217,10 @@ extern struct irq_desc *sparse_irqs; #endif +#ifdef CONFIG_HAVE_DYN_ARRAY #define kstat_irqs_this_cpu(DESC) \ ((DESC)->kstat_irqs[smp_processor_id()]) +#endif /* * Migration helpers for obsolete names, they will go away: diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index f10616712de5..21249d8c1293 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,7 +28,7 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; -#ifndef CONFIG_GENERIC_HARDIRQS +#ifndef CONFIG_HAVE_DYN_ARRAY unsigned int irqs[NR_IRQS]; #endif }; @@ -41,7 +41,13 @@ DECLARE_PER_CPU(struct kernel_stat, kstat); extern unsigned long long nr_context_switches(void); -#ifndef CONFIG_GENERIC_HARDIRQS +#ifndef CONFIG_HAVE_DYN_ARRAY +#define kstat_irqs_this_cpu(irq) \ + (kstat_this_cpu.irqs[irq]) +#endif + + +#ifndef CONFIG_HAVE_DYN_ARRAY static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) { return kstat_cpu(cpu).irqs[irq]; -- cgit v1.2.1 From 1dd6ba2e179773597e20f17f66049a64e6c4b2ec Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Mon, 25 Aug 2008 21:27:26 +0400 Subject: x86: apic - unify smp_spurious/error_interrupt declaration According to entry_64.S we do pass pt_regs pointer into interrupt handlers but don't use them. So we safely may merge the declarations. Signed-off-by: Cyrill Gorcunov Signed-off-by: Ingo Molnar --- include/asm-x86/hw_irq.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include') diff --git a/include/asm-x86/hw_irq.h b/include/asm-x86/hw_irq.h index 39c7a4745d25..749d042f0556 100644 --- a/include/asm-x86/hw_irq.h +++ b/include/asm-x86/hw_irq.h @@ -96,13 +96,8 @@ extern asmlinkage void qic_call_function_interrupt(void); /* SMP */ extern void smp_apic_timer_interrupt(struct pt_regs *); -#ifdef CONFIG_X86_32 extern void smp_spurious_interrupt(struct pt_regs *); extern void smp_error_interrupt(struct pt_regs *); -#else -extern asmlinkage void smp_spurious_interrupt(void); -extern asmlinkage void smp_error_interrupt(void); -#endif #ifdef CONFIG_X86_SMP extern void smp_reschedule_interrupt(struct pt_regs *); extern void smp_call_function_interrupt(struct pt_regs *); -- cgit v1.2.1 From a11b5abef50722e42a7d13f6b799c4f606fcb797 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 3 Sep 2008 16:58:31 -0700 Subject: x2apic: fix reserved APIC register accesses in print_local_APIC() APIC_ARBPRI is a reserved register for XAPIC and beyond. APIC_RRR is a reserved register except for 82489DX, APIC for Pentium processors. APIC_EOI is a write only register. APIC_DFR is reserved in x2apic mode. Access to these registers in x2apic will result in #GP fault. Fix these apic register accesses. Signed-off-by: Yinghai Lu Signed-off-by: Suresh Siddha Cc: Maciej W. Rozycki Signed-off-by: Ingo Molnar --- include/asm-x86/apic.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include') diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index 2d970f6bc2a1..ef1d72dbdfe0 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -98,6 +98,20 @@ extern void check_x2apic(void); extern void enable_x2apic(void); extern void enable_IR_x2apic(void); extern void x2apic_icr_write(u32 low, u32 id); +static inline int x2apic_enabled(void) +{ + int msr, msr2; + + if (!cpu_has_x2apic) + return 0; + + rdmsr(MSR_IA32_APICBASE, msr, msr2); + if (msr & X2APIC_ENABLE) + return 1; + return 0; +} +#else +#define x2apic_enabled() 0 #endif struct apic_ops { -- cgit v1.2.1 From f6dd5c3106fb283e37d915eeb33019ef40510f85 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 3 Sep 2008 16:58:32 -0700 Subject: dmar: fix using early fixmap mapping for DMAR table parsing Very early detection of the DMAR tables will setup fixmap mapping. For parsing these tables later (while enabling dma and/or interrupt remapping), early fixmap mapping shouldn't be used. Fix it by calling table detection routines again, which will call generic apci_get_table() for setting up the correct mapping. Signed-off-by: Yinghai Lu Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar --- include/linux/dmar.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/dmar.h b/include/linux/dmar.h index c360c558e59e..f1984fc3e06d 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -45,7 +45,6 @@ extern struct list_head dmar_drhd_units; list_for_each_entry(drhd, &dmar_drhd_units, list) extern int dmar_table_init(void); -extern int early_dmar_detect(void); extern int dmar_dev_scope_init(void); /* Intel IOMMU detection */ -- cgit v1.2.1 From 58ac1e76ce77d515bd5cb65dbc465a040da341c6 Mon Sep 17 00:00:00 2001 From: "venkatesh.pallipadi@intel.com" Date: Fri, 5 Sep 2008 18:02:17 -0700 Subject: x86: HPET_MSI Basic HPET_MSI setup code Basic HPET MSI setup code. Routines to perform basic MSI read write in HPET memory map and setting up irq_chip for HPET MSI. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Shaohua Li Signed-off-by: Ingo Molnar --- include/asm-x86/hpet.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include') diff --git a/include/asm-x86/hpet.h b/include/asm-x86/hpet.h index cbbbb6d4dd32..58b273f6ef07 100644 --- a/include/asm-x86/hpet.h +++ b/include/asm-x86/hpet.h @@ -1,6 +1,8 @@ #ifndef ASM_X86__HPET_H #define ASM_X86__HPET_H +#include + #ifdef CONFIG_HPET_TIMER #define HPET_MMAP_SIZE 1024 @@ -10,6 +12,11 @@ #define HPET_CFG 0x010 #define HPET_STATUS 0x020 #define HPET_COUNTER 0x0f0 + +#define HPET_Tn_CFG(n) (0x100 + 0x20 * n) +#define HPET_Tn_CMP(n) (0x108 + 0x20 * n) +#define HPET_Tn_ROUTE(n) (0x110 + 0x20 * n) + #define HPET_T0_CFG 0x100 #define HPET_T0_CMP 0x108 #define HPET_T0_ROUTE 0x110 @@ -65,6 +72,20 @@ extern void hpet_disable(void); extern unsigned long hpet_readl(unsigned long a); extern void force_hpet_resume(void); +extern void hpet_msi_unmask(unsigned int irq); +extern void hpet_msi_mask(unsigned int irq); +extern void hpet_msi_write(unsigned int irq, struct msi_msg *msg); +extern void hpet_msi_read(unsigned int irq, struct msi_msg *msg); + +#ifdef CONFIG_PCI_MSI +extern int arch_setup_hpet_msi(unsigned int irq); +#else +static inline int arch_setup_hpet_msi(unsigned int irq) +{ + return -EINVAL; +} +#endif + #ifdef CONFIG_HPET_EMULATE_RTC #include -- cgit v1.2.1 From 4173a0e7371ece227559b44943c6fd456ee470d1 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Thu, 2 Oct 2008 12:18:21 -0500 Subject: x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3 Provide a means for UV interrupt MMRs to be setup with the message to be sent when an MSI is raised. Signed-off-by: Dean Nelson Signed-off-by: Ingo Molnar --- include/asm-x86/uv/uv_irq.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 include/asm-x86/uv/uv_irq.h (limited to 'include') diff --git a/include/asm-x86/uv/uv_irq.h b/include/asm-x86/uv/uv_irq.h new file mode 100644 index 000000000000..8bf5f32da9c6 --- /dev/null +++ b/include/asm-x86/uv/uv_irq.h @@ -0,0 +1,36 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * SGI UV IRQ definitions + * + * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved. + */ + +#ifndef ASM_X86__UV__UV_IRQ_H +#define ASM_X86__UV__UV_IRQ_H + +/* If a generic version of this structure gets defined, eliminate this one. */ +struct uv_IO_APIC_route_entry { + __u64 vector : 8, + delivery_mode : 3, + dest_mode : 1, + delivery_status : 1, + polarity : 1, + __reserved_1 : 1, + trigger : 1, + mask : 1, + __reserved_2 : 15, + dest : 32; +}; + +extern struct irq_chip uv_irq_chip; + +extern int arch_enable_uv_irq(char *, unsigned int, int, int, unsigned long); +extern void arch_disable_uv_irq(int, unsigned long); + +extern int uv_setup_irq(char *, int, int, unsigned long); +extern void uv_teardown_irq(unsigned int, int, unsigned long); + +#endif /* ASM_X86__UV__UV_IRQ_H */ -- cgit v1.2.1 From a50f70b17541c0060967c6df61133e968bad3652 Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Fri, 3 Oct 2008 11:58:54 -0500 Subject: x86: Add UV EFI table entry v4 Look for a UV entry in the EFI tables. Signed-off-by: Russ Anderson Signed-off-by: Paul Jackson Acked-by: Huang Ying Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- include/linux/efi.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/efi.h b/include/linux/efi.h index 807373d467f7..bb66feb164bd 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -208,6 +208,9 @@ typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_siz #define EFI_GLOBAL_VARIABLE_GUID \ EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c ) +#define UV_SYSTEM_TABLE_GUID \ + EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) + typedef struct { efi_guid_t guid; unsigned long table; @@ -255,6 +258,7 @@ extern struct efi { unsigned long boot_info; /* boot info table */ unsigned long hcdp; /* HCDP table */ unsigned long uga; /* UGA table */ + unsigned long uv_systab; /* UV system table */ efi_get_time_t *get_time; efi_set_time_t *set_time; efi_get_wakeup_time_t *get_wakeup_time; -- cgit v1.2.1 From 7f5942329e0787087a5e4dced838cee711ac2b58 Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Fri, 3 Oct 2008 11:59:15 -0500 Subject: x86: Add UV bios call infrastructure v4 Add the EFI callback function and associated wrapper code. Initialize SAL system table entry info at boot time. Signed-off-by: Russ Anderson Signed-off-by: Paul Jackson Acked-by: Huang Ying Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- include/asm-x86/efi.h | 13 +++++++++ include/asm-x86/uv/bios.h | 73 ++++++++++++++++++++++++++--------------------- 2 files changed, 54 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/include/asm-x86/efi.h b/include/asm-x86/efi.h index ed2de22e8705..313438e63348 100644 --- a/include/asm-x86/efi.h +++ b/include/asm-x86/efi.h @@ -94,4 +94,17 @@ extern void efi_reserve_early(void); extern void efi_call_phys_prelog(void); extern void efi_call_phys_epilog(void); +#ifndef CONFIG_EFI +/* + * IF EFI is not configured, have the EFI calls return -ENOSYS. + */ +#define efi_call0(_f) (-ENOSYS) +#define efi_call1(_f, _a1) (-ENOSYS) +#define efi_call2(_f, _a1, _a2) (-ENOSYS) +#define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS) +#define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS) +#define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS) +#define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS) +#endif /* CONFIG_EFI */ + #endif /* ASM_X86__EFI_H */ diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h index 7cd6d7ec1308..f63e46e5337c 100644 --- a/include/asm-x86/uv/bios.h +++ b/include/asm-x86/uv/bios.h @@ -2,9 +2,7 @@ #define ASM_X86__UV__BIOS_H /* - * BIOS layer definitions. - * - * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * UV BIOS layer definitions. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,50 +17,61 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) Russ Anderson */ #include -#define BIOS_FREQ_BASE 0x01000001 +/* + * Values for the BIOS calls. It is passed as the first * argument in the + * BIOS call. Passing any other value in the first argument will result + * in a BIOS_STATUS_UNIMPLEMENTED return status. + */ +enum uv_bios_cmd { + UV_BIOS_COMMON, + UV_BIOS_GET_SN_INFO, + UV_BIOS_FREQ_BASE +}; +/* + * Status values returned from a BIOS call. + */ enum { - BIOS_FREQ_BASE_PLATFORM = 0, - BIOS_FREQ_BASE_INTERVAL_TIMER = 1, - BIOS_FREQ_BASE_REALTIME_CLOCK = 2 + BIOS_STATUS_SUCCESS = 0, + BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, + BIOS_STATUS_EINVAL = -EINVAL, + BIOS_STATUS_UNAVAIL = -EBUSY }; -# define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7) \ - do { \ - /* XXX - the real call goes here */ \ - result.status = BIOS_STATUS_UNIMPLEMENTED; \ - isrv.v0 = 0; \ - isrv.v1 = 0; \ - } while (0) +/* + * The UV system table describes specific firmware + * capabilities available to the Linux kernel at runtime. + */ +struct uv_systab { + char signature[4]; /* must be "UVST" */ + u32 revision; /* distinguish different firmware revs */ + u64 function; /* BIOS runtime callback function ptr */ +}; enum { - BIOS_STATUS_SUCCESS = 0, - BIOS_STATUS_UNIMPLEMENTED = -1, - BIOS_STATUS_EINVAL = -2, - BIOS_STATUS_ERROR = -3 + BIOS_FREQ_BASE_PLATFORM = 0, + BIOS_FREQ_BASE_INTERVAL_TIMER = 1, + BIOS_FREQ_BASE_REALTIME_CLOCK = 2 }; -struct uv_bios_retval { - /* - * A zero status value indicates call completed without error. - * A negative status value indicates reason of call failure. - * A positive status value indicates success but an - * informational value should be printed (e.g., "reboot for - * change to take effect"). - */ - s64 status; - u64 v0; - u64 v1; - u64 v2; -}; +/* + * bios calls have 6 parameters + */ +extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); +extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); +extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); + +extern void uv_bios_init(void); extern long x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, unsigned long *drift_info); -extern const char *x86_bios_strerror(long status); #endif /* ASM_X86__UV__BIOS_H */ -- cgit v1.2.1 From 922402f15a85f7a064926eb1db68cc52bc4d4a91 Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Fri, 3 Oct 2008 11:59:33 -0500 Subject: x86: Add UV partition call v4 Add a bios call to return partitioning related info. Signed-off-by: Russ Anderson Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- include/asm-x86/uv/bios.h | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h index f63e46e5337c..3b305d897c84 100644 --- a/include/asm-x86/uv/bios.h +++ b/include/asm-x86/uv/bios.h @@ -61,6 +61,16 @@ enum { BIOS_FREQ_BASE_REALTIME_CLOCK = 2 }; +union partition_info_u { + u64 val; + struct { + u64 hub_version : 8, + partition_id : 16, + coherence_id : 16, + region_size : 24; + }; +}; + /* * bios calls have 6 parameters */ @@ -68,10 +78,16 @@ extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); +extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *); +extern s64 uv_bios_freq_base(u64, u64 *); + extern void uv_bios_init(void); -extern long -x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, - unsigned long *drift_info); +extern int uv_type; +extern long sn_partition_id; +extern long uv_coherency_id; +extern long uv_region_size; +#define partition_coherence_id() (uv_coherency_id) + #endif /* ASM_X86__UV__BIOS_H */ -- cgit v1.2.1 From fc8c2d763bacc02962048fa042e287debb1416aa Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Fri, 3 Oct 2008 11:59:50 -0500 Subject: x86: Add sysfs entries for UV v4 Create /sys/firmware/sgi_uv sysfs entries for partition_id and coherence_id. Signed-off-by: Russ Anderson Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- include/asm-x86/uv/bios.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h index 3b305d897c84..215f1969c266 100644 --- a/include/asm-x86/uv/bios.h +++ b/include/asm-x86/uv/bios.h @@ -89,5 +89,6 @@ extern long uv_coherency_id; extern long uv_region_size; #define partition_coherence_id() (uv_coherency_id) +extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ #endif /* ASM_X86__UV__BIOS_H */ -- cgit v1.2.1 From 7ef0c30dbf96a8d9a234e90c248eb19df3c031be Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 13:07:35 +0200 Subject: genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n Revert the sparse irq changes in m68k/s390/sparc and just define nr_irqs as NR_IRQS for those architectures. Signed-off-by: Thomas Gleixner --- include/linux/interrupt.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index d4039a0b23f4..5a57df2ee922 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -15,11 +15,13 @@ #include #include -extern int nr_irqs; - #ifndef CONFIG_GENERIC_HARDIRQS -#define for_each_irq_desc(irq, desc) \ +# define for_each_irq_desc(irq, desc) \ for (irq = 0; irq < nr_irqs; irq++) + +# define nr_irqs NR_IRQS +#else +extern int nr_irqs; #endif /* -- cgit v1.2.1 From 70dd4d992ab324a59cdcd6bedc3f4e729863d514 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 15:39:27 +0200 Subject: genirq: consolidate nr_irqs and for_each_irq_desc() Move all of those to linux/irq.h where they belong. Signed-off-by: Thomas Gleixner --- include/linux/interrupt.h | 9 --------- include/linux/irq.h | 17 ++++++++++++----- 2 files changed, 12 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 5a57df2ee922..58ff4e74b2f3 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -15,15 +15,6 @@ #include #include -#ifndef CONFIG_GENERIC_HARDIRQS -# define for_each_irq_desc(irq, desc) \ - for (irq = 0; irq < nr_irqs; irq++) - -# define nr_irqs NR_IRQS -#else -extern int nr_irqs; -#endif - /* * These correspond to the IORESOURCE_IRQ_* defines in * linux/ioport.h to select the interrupt line behaviour. When diff --git a/include/linux/irq.h b/include/linux/irq.h index 93fe9a943e71..dbe8734ae86c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -11,6 +11,18 @@ #include +#ifndef CONFIG_GENERIC_HARDIRQS +# define nr_irqs NR_IRQS + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0; irq < nr_irqs; irq++) +#else +extern int nr_irqs; + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++) +#endif + #ifndef CONFIG_S390 #include @@ -204,11 +216,6 @@ extern struct irq_desc irq_desc[NR_IRQS]; extern struct irq_desc *irq_desc; #endif -#ifdef CONFIG_GENERIC_HARDIRQS -#define for_each_irq_desc(irq, desc) \ - for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc = &irq_desc[irq]) -#endif - #else extern struct irq_desc *sparse_irqs; -- cgit v1.2.1 From c6b7674f323622d86316bf7951ad9cae1ce24642 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 14:31:29 +0200 Subject: genirq: use inline function for irq_to_desc For the non sparse irq case an inline function is perfectly fine. Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index dbe8734ae86c..7d1adacaadb4 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -204,8 +204,6 @@ struct irq_desc { const char *name; } ____cacheline_internodealigned_in_smp; -extern struct irq_desc *irq_to_desc(unsigned int irq); -extern struct irq_desc *irq_to_desc_alloc(unsigned int irq); #ifndef CONFIG_HAVE_SPARSE_IRQ @@ -216,8 +214,21 @@ extern struct irq_desc irq_desc[NR_IRQS]; extern struct irq_desc *irq_desc; #endif +static inline struct irq_desc *irq_to_desc(unsigned int irq) +{ + return (irq < nr_irqs) ? irq_desc + irq : NULL; +} + +static inline struct irq_desc *irq_to_desc_alloc(unsigned int irq) +{ + return irq_to_desc(irq); +} + #else +extern struct irq_desc *irq_to_desc(unsigned int irq); +extern struct irq_desc *irq_to_desc_alloc(unsigned int irq); + extern struct irq_desc *sparse_irqs; #define for_each_irq_desc(irqX, desc) \ for (desc = sparse_irqs, irqX = desc->irq; desc; desc = desc->next, irqX = desc ? desc->irq : -1U) -- cgit v1.2.1 From 2cc21ef843d4fb7da122239b644a1f6f0aca60a6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 14:16:55 +0200 Subject: genirq: remove sparse irq code This code is not ready, but we need to rip it out instead of rebasing as we would lose the APIC/IO_APIC unification otherwise. Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 7d1adacaadb4..68e0f3f9df30 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -167,15 +167,8 @@ struct irq_2_iommu; */ struct irq_desc { unsigned int irq; -#ifdef CONFIG_HAVE_SPARSE_IRQ - struct irq_desc *next; - struct timer_rand_state *timer_rand_state; -#endif #ifdef CONFIG_HAVE_DYN_ARRAY unsigned int *kstat_irqs; -#endif -#if defined(CONFIG_INTR_REMAP) && defined(CONFIG_HAVE_SPARSE_IRQ) - struct irq_2_iommu *irq_2_iommu; #endif irq_flow_handler_t handle_irq; struct irq_chip *chip; @@ -205,8 +198,6 @@ struct irq_desc { } ____cacheline_internodealigned_in_smp; -#ifndef CONFIG_HAVE_SPARSE_IRQ - #ifndef CONFIG_HAVE_DYN_ARRAY /* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; @@ -224,17 +215,6 @@ static inline struct irq_desc *irq_to_desc_alloc(unsigned int irq) return irq_to_desc(irq); } -#else - -extern struct irq_desc *irq_to_desc(unsigned int irq); -extern struct irq_desc *irq_to_desc_alloc(unsigned int irq); - -extern struct irq_desc *sparse_irqs; -#define for_each_irq_desc(irqX, desc) \ - for (desc = sparse_irqs, irqX = desc->irq; desc; desc = desc->next, irqX = desc ? desc->irq : -1U) - -#endif - #ifdef CONFIG_HAVE_DYN_ARRAY #define kstat_irqs_this_cpu(DESC) \ ((DESC)->kstat_irqs[smp_processor_id()]) -- cgit v1.2.1 From ee32c9732244bde4b9b59eeac2814c23e2b71f8d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 14:34:09 +0200 Subject: genirq: remove irq_to_desc_alloc Remove the leftover of sparseirqs. Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 68e0f3f9df30..3f33c7790300 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -210,11 +210,6 @@ static inline struct irq_desc *irq_to_desc(unsigned int irq) return (irq < nr_irqs) ? irq_desc + irq : NULL; } -static inline struct irq_desc *irq_to_desc_alloc(unsigned int irq) -{ - return irq_to_desc(irq); -} - #ifdef CONFIG_HAVE_DYN_ARRAY #define kstat_irqs_this_cpu(DESC) \ ((DESC)->kstat_irqs[smp_processor_id()]) -- cgit v1.2.1 From d6c88a507ef0b6afdb013cba4e7804ba7324d99a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 15:27:23 +0200 Subject: genirq: revert dynarray Revert the dynarray changes. They need more thought and polishing. Signed-off-by: Thomas Gleixner --- include/asm-generic/vmlinux.lds.h | 13 ------------ include/linux/init.h | 43 --------------------------------------- include/linux/irq.h | 15 -------------- include/linux/kernel_stat.h | 16 ++++++--------- 4 files changed, 6 insertions(+), 81 deletions(-) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index c68eda9d9a90..7440a0dceddb 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -210,19 +210,6 @@ * All archs are supposed to use RO_DATA() */ #define RODATA RO_DATA(4096) -#define DYN_ARRAY_INIT(align) \ - . = ALIGN((align)); \ - .dyn_array.init : AT(ADDR(.dyn_array.init) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__dyn_array_start) = .; \ - *(.dyn_array.init) \ - VMLINUX_SYMBOL(__dyn_array_end) = .; \ - } \ - . = ALIGN((align)); \ - .per_cpu_dyn_array.init : AT(ADDR(.per_cpu_dyn_array.init) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__per_cpu_dyn_array_start) = .; \ - *(.per_cpu_dyn_array.init) \ - VMLINUX_SYMBOL(__per_cpu_dyn_array_end) = .; \ - } #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__security_initcall_start) = .; \ diff --git a/include/linux/init.h b/include/linux/init.h index 59fbb4aaba6a..70ad53e1eab8 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -247,49 +247,6 @@ struct obs_kernel_param { /* Relies on boot_command_line being set */ void __init parse_early_param(void); -struct dyn_array { - void **name; - unsigned long size; - unsigned int *nr; - unsigned long align; - void (*init_work)(void *); -}; -extern struct dyn_array *__dyn_array_start[], *__dyn_array_end[]; -extern struct dyn_array *__per_cpu_dyn_array_start[], *__per_cpu_dyn_array_end[]; - -#define DEFINE_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \ - static struct dyn_array __dyn_array_##nameX __initdata = \ - { .name = (void **)&(nameX),\ - .size = sizeX,\ - .nr = &(nrX),\ - .align = alignX,\ - .init_work = init_workX,\ - }; \ - static struct dyn_array *__dyn_array_ptr_##nameX __used \ - __attribute__((__section__(".dyn_array.init"))) = \ - &__dyn_array_##nameX - -#define DEFINE_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ - DEFINE_DYN_ARRAY_ADDR(nameX, nameX, sizeX, nrX, alignX, init_workX) - -#define DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \ - static struct dyn_array __per_cpu_dyn_array_##nameX __initdata = \ - { .name = (void **)&(addrX),\ - .size = sizeX,\ - .nr = &(nrX),\ - .align = alignX,\ - .init_work = init_workX,\ - }; \ - static struct dyn_array *__per_cpu_dyn_array_ptr_##nameX __used \ - __attribute__((__section__(".per_cpu_dyn_array.init"))) = \ - &__per_cpu_dyn_array_##nameX - -#define DEFINE_PER_CPU_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \ - DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, nameX, nrX, alignX, init_workX) - -extern void pre_alloc_dyn_array(void); -extern unsigned long per_cpu_dyn_array_size(unsigned long *align); -extern void per_cpu_alloc_dyn_array(int cpu, char *ptr); #endif /* __ASSEMBLY__ */ /** diff --git a/include/linux/irq.h b/include/linux/irq.h index 3f33c7790300..38bf89f2ade0 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -139,8 +139,6 @@ struct irq_chip { const char *typename; }; -struct timer_rand_state; -struct irq_2_iommu; /** * struct irq_desc - interrupt descriptor * @@ -167,9 +165,6 @@ struct irq_2_iommu; */ struct irq_desc { unsigned int irq; -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned int *kstat_irqs; -#endif irq_flow_handler_t handle_irq; struct irq_chip *chip; struct msi_desc *msi_desc; @@ -198,23 +193,13 @@ struct irq_desc { } ____cacheline_internodealigned_in_smp; -#ifndef CONFIG_HAVE_DYN_ARRAY -/* could be removed if we get rid of all irq_desc reference */ extern struct irq_desc irq_desc[NR_IRQS]; -#else -extern struct irq_desc *irq_desc; -#endif static inline struct irq_desc *irq_to_desc(unsigned int irq) { return (irq < nr_irqs) ? irq_desc + irq : NULL; } -#ifdef CONFIG_HAVE_DYN_ARRAY -#define kstat_irqs_this_cpu(DESC) \ - ((DESC)->kstat_irqs[smp_processor_id()]) -#endif - /* * Migration helpers for obsolete names, they will go away: */ diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 21249d8c1293..a9d0d360b776 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,9 +28,7 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; -#ifndef CONFIG_HAVE_DYN_ARRAY unsigned int irqs[NR_IRQS]; -#endif }; DECLARE_PER_CPU(struct kernel_stat, kstat); @@ -41,20 +39,18 @@ DECLARE_PER_CPU(struct kernel_stat, kstat); extern unsigned long long nr_context_switches(void); -#ifndef CONFIG_HAVE_DYN_ARRAY -#define kstat_irqs_this_cpu(irq) \ - (kstat_this_cpu.irqs[irq]) -#endif +struct irq_desc; +static inline void kstat_incr_irqs_this_cpu(unsigned int irq, + struct irq_desc *desc) +{ + kstat_this_cpu.irqs[irq]++; +} -#ifndef CONFIG_HAVE_DYN_ARRAY static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) { return kstat_cpu(cpu).irqs[irq]; } -#else -extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); -#endif /* * Number of interrupts per specific IRQ source, since bootup -- cgit v1.2.1 From a1aca5de08a0cb840a90fb3f729a5940f8d21185 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 15 Oct 2008 19:29:15 +0200 Subject: genirq: remove artifacts from sparseirq removal Signed-off-by: Ingo Molnar --- include/linux/init.h | 1 - include/linux/kernel_stat.h | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/init.h b/include/linux/init.h index 70ad53e1eab8..93538b696e3d 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -246,7 +246,6 @@ struct obs_kernel_param { /* Relies on boot_command_line being set */ void __init parse_early_param(void); - #endif /* __ASSEMBLY__ */ /** diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index a9d0d360b776..89b6ecd41473 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,7 +28,7 @@ struct cpu_usage_stat { struct kernel_stat { struct cpu_usage_stat cpustat; - unsigned int irqs[NR_IRQS]; + unsigned int irqs[NR_IRQS]; }; DECLARE_PER_CPU(struct kernel_stat, kstat); -- cgit v1.2.1 From 811410fdb6b9d82a518542289efe9b2a51e3cbfb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 16 Oct 2008 14:16:11 +0200 Subject: genirq: add reverse iterator for irq_desc Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 38bf89f2ade0..31632aa65d16 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -21,6 +21,10 @@ extern int nr_irqs; # define for_each_irq_desc(irq, desc) \ for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++) + +# define for_each_irq_desc_reverse(irq, desc) \ + for (irq = nr_irqs -1, desc = irq_desc + (nr_irqs -1 ); \ + irq > 0; irq--, desc--) #endif #ifndef CONFIG_S390 -- cgit v1.2.1 From 2be3b52a5785a6a5c5349fbd315f57595f7074be Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 16 Oct 2008 14:50:27 +0200 Subject: proc: fixup irq iterator There is no need for irq_desc here. Even for sparse_irq we can handle this clever in for_each_irq_nr(). Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 31632aa65d16..0618fb362cb4 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -27,6 +27,9 @@ extern int nr_irqs; irq > 0; irq--, desc--) #endif +#define for_each_irq_nr(irq) \ + for (irq = 0; irq < nr_irqs; irq++) + #ifndef CONFIG_S390 #include -- cgit v1.2.1 From ae87221d3ce49d9de1e43756da834fd0bf05a2ad Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 24 Aug 2007 16:11:54 -0700 Subject: sysfs: crash debugging Print the name of the last-accessed sysfs file when we oops, to help track down oopses which occur in sysfs store/read handlers. Because these oopses tend to not leave any trace of the offending code in the stack traces. Cc: Kay Sievers Cc: Mathieu Desnoyers Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 37fa24152bd8..8ec406afb3eb 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -119,6 +119,8 @@ void sysfs_remove_file_from_group(struct kobject *kobj, void sysfs_notify(struct kobject *kobj, char *dir, char *attr); +void sysfs_printk_last_file(void); + extern int __must_check sysfs_init(void); #else /* CONFIG_SYSFS */ @@ -231,6 +233,10 @@ static inline int __must_check sysfs_init(void) return 0; } +static inline void sysfs_printk_last_file(void) +{ +} + #endif /* CONFIG_SYSFS */ #endif /* _SYSFS_H_ */ -- cgit v1.2.1 From 7fb6b5d51daf3613045258ee8add07022d8c39d3 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 21 Jul 2008 20:03:34 -0700 Subject: device create: remove device_create_drvdata Now that the tree is cleaned up, device_create_drvdata can be safely removed. Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index 246937c9cbc7..60f6456691a6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -502,7 +502,6 @@ extern struct device *device_create(struct class *cls, struct device *parent, dev_t devt, void *drvdata, const char *fmt, ...) __attribute__((format(printf, 5, 6))); -#define device_create_drvdata device_create extern void device_destroy(struct class *cls, dev_t devt); /* -- cgit v1.2.1 From 346e15beb5343c2eb8216d820f2ed8f150822b08 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Tue, 12 Aug 2008 16:46:19 -0400 Subject: driver core: basic infrastructure for per-module dynamic debug messages Base infrastructure to enable per-module debug messages. I've introduced CONFIG_DYNAMIC_PRINTK_DEBUG, which when enabled centralizes control of debugging statements on a per-module basis in one /proc file, currently, /dynamic_printk/modules. When, CONFIG_DYNAMIC_PRINTK_DEBUG, is not set, debugging statements can still be enabled as before, often by defining 'DEBUG' for the proper compilation unit. Thus, this patch set has no affect when CONFIG_DYNAMIC_PRINTK_DEBUG is not set. The infrastructure currently ties into all pr_debug() and dev_dbg() calls. That is, if CONFIG_DYNAMIC_PRINTK_DEBUG is set, all pr_debug() and dev_dbg() calls can be dynamically enabled/disabled on a per-module basis. Future plans include extending this functionality to subsystems, that define their own debug levels and flags. Usage: Dynamic debugging is controlled by the debugfs file, /dynamic_printk/modules. This file contains a list of the modules that can be enabled. The format of the file is as follows: . . . : Name of the module in which the debug call resides : whether the messages are enabled or not For example: snd_hda_intel enabled=0 fixup enabled=1 driver enabled=0 Enable a module: $echo "set enabled=1 " > dynamic_printk/modules Disable a module: $echo "set enabled=0 " > dynamic_printk/modules Enable all modules: $echo "set enabled=1 all" > dynamic_printk/modules Disable all modules: $echo "set enabled=0 all" > dynamic_printk/modules Finally, passing "dynamic_printk" at the command line enables debugging for all modules. This mode can be turned off via the above disable command. [gkh: minor cleanups and tweaks to make the build work quietly] Signed-off-by: Jason Baron Signed-off-by: Greg Kroah-Hartman --- include/asm-generic/vmlinux.lds.h | 10 ++++- include/linux/device.h | 6 ++- include/linux/dynamic_printk.h | 93 +++++++++++++++++++++++++++++++++++++++ include/linux/kernel.h | 7 ++- include/linux/module.h | 1 - 5 files changed, 113 insertions(+), 4 deletions(-) create mode 100644 include/linux/dynamic_printk.h (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7440a0dceddb..74c5faf26c05 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -268,7 +268,15 @@ CPU_DISCARD(init.data) \ CPU_DISCARD(init.rodata) \ MEM_DISCARD(init.data) \ - MEM_DISCARD(init.rodata) + MEM_DISCARD(init.rodata) \ + /* implement dynamic printk debug */ \ + VMLINUX_SYMBOL(__start___verbose_strings) = .; \ + *(__verbose_strings) \ + VMLINUX_SYMBOL(__stop___verbose_strings) = .; \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__start___verbose) = .; \ + *(__verbose) \ + VMLINUX_SYMBOL(__stop___verbose) = .; #define INIT_TEXT \ *(.init.text) \ diff --git a/include/linux/device.h b/include/linux/device.h index 60f6456691a6..fb034461b395 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -550,7 +550,11 @@ extern const char *dev_driver_string(const struct device *dev); #define dev_info(dev, format, arg...) \ dev_printk(KERN_INFO , dev , format , ## arg) -#ifdef DEBUG +#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG) +#define dev_dbg(dev, format, ...) do { \ + dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \ + } while (0) +#elif defined(DEBUG) #define dev_dbg(dev, format, arg...) \ dev_printk(KERN_DEBUG , dev , format , ## arg) #else diff --git a/include/linux/dynamic_printk.h b/include/linux/dynamic_printk.h new file mode 100644 index 000000000000..2d528d009074 --- /dev/null +++ b/include/linux/dynamic_printk.h @@ -0,0 +1,93 @@ +#ifndef _DYNAMIC_PRINTK_H +#define _DYNAMIC_PRINTK_H + +#define DYNAMIC_DEBUG_HASH_BITS 6 +#define DEBUG_HASH_TABLE_SIZE (1 << DYNAMIC_DEBUG_HASH_BITS) + +#define TYPE_BOOLEAN 1 + +#define DYNAMIC_ENABLED_ALL 0 +#define DYNAMIC_ENABLED_NONE 1 +#define DYNAMIC_ENABLED_SOME 2 + +extern int dynamic_enabled; + +/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which + * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They + * use independent hash functions, to reduce the chance of false positives. + */ +extern long long dynamic_printk_enabled; +extern long long dynamic_printk_enabled2; + +struct mod_debug { + char *modname; + char *logical_modname; + char *flag_names; + int type; + int hash; + int hash2; +} __attribute__((aligned(8))); + +int register_dynamic_debug_module(char *mod_name, int type, char *share_name, + char *flags, int hash, int hash2); + +#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG) +extern int unregister_dynamic_debug_module(char *mod_name); +extern int __dynamic_dbg_enabled_helper(char *modname, int type, + int value, int hash); + +#define __dynamic_dbg_enabled(module, type, value, level, hash) ({ \ + int __ret = 0; \ + if (unlikely((dynamic_printk_enabled & (1LL << DEBUG_HASH)) && \ + (dynamic_printk_enabled2 & (1LL << DEBUG_HASH2)))) \ + __ret = __dynamic_dbg_enabled_helper(module, type, \ + value, hash);\ + __ret; }) + +#define dynamic_pr_debug(fmt, ...) do { \ + static char mod_name[] \ + __attribute__((section("__verbose_strings"))) \ + = KBUILD_MODNAME; \ + static struct mod_debug descriptor \ + __used \ + __attribute__((section("__verbose"), aligned(8))) = \ + { mod_name, mod_name, NULL, TYPE_BOOLEAN, DEBUG_HASH, DEBUG_HASH2 };\ + if (__dynamic_dbg_enabled(KBUILD_MODNAME, TYPE_BOOLEAN, \ + 0, 0, DEBUG_HASH)) \ + printk(KERN_DEBUG KBUILD_MODNAME ":" fmt, \ + ##__VA_ARGS__); \ + } while (0) + +#define dynamic_dev_dbg(dev, format, ...) do { \ + static char mod_name[] \ + __attribute__((section("__verbose_strings"))) \ + = KBUILD_MODNAME; \ + static struct mod_debug descriptor \ + __used \ + __attribute__((section("__verbose"), aligned(8))) = \ + { mod_name, mod_name, NULL, TYPE_BOOLEAN, DEBUG_HASH, DEBUG_HASH2 };\ + if (__dynamic_dbg_enabled(KBUILD_MODNAME, TYPE_BOOLEAN, \ + 0, 0, DEBUG_HASH)) \ + dev_printk(KERN_DEBUG, dev, \ + KBUILD_MODNAME ": " format, \ + ##__VA_ARGS__); \ + } while (0) + +#else + +static inline int unregister_dynamic_debug_module(const char *mod_name) +{ + return 0; +} +static inline int __dynamic_dbg_enabled_helper(char *modname, int type, + int value, int hash) +{ + return 0; +} + +#define __dynamic_dbg_enabled(module, type, value, level, hash) ({ 0; }) +#define dynamic_pr_debug(fmt, ...) do { } while (0) +#define dynamic_dev_dbg(dev, format, ...) do { } while (0) +#endif + +#endif diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 75d81f157d2e..ededb6e83b41 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -303,8 +304,12 @@ static inline char *pack_hex_byte(char *buf, u8 byte) #define pr_info(fmt, arg...) \ printk(KERN_INFO fmt, ##arg) -#ifdef DEBUG /* If you are writing a driver, please use dev_dbg instead */ +#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG) +#define pr_debug(fmt, ...) do { \ + dynamic_pr_debug(fmt, ##__VA_ARGS__); \ + } while (0) +#elif defined(DEBUG) #define pr_debug(fmt, arg...) \ printk(KERN_DEBUG fmt, ##arg) #else diff --git a/include/linux/module.h b/include/linux/module.h index 68e09557c951..a41555cbe00a 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -345,7 +345,6 @@ struct module /* Reference counts */ struct module_ref ref[NR_CPUS]; #endif - }; #ifndef MODULE_ARCH_INIT #define MODULE_ARCH_INIT {} -- cgit v1.2.1 From f1282c844e86db5a041afa41335b5f9eea6cec0c Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Wed, 16 Jul 2008 08:58:04 +1000 Subject: sysfs: Support sysfs_notify from atomic context with new sysfs_notify_dirent Support sysfs_notify from atomic context with new sysfs_notify_dirent sysfs_notify currently takes sysfs_mutex. This means that it cannot be called in atomic context. sysfs_mutex is sometimes held over a malloc (sysfs_rename_dir) so it can block on low memory. In md I want to be able to notify on a sysfs attribute from atomic context, and I don't want to block on low memory because I could be in the writeout path for freeing memory. So: - export the "sysfs_dirent" structure along with sysfs_get, sysfs_put and sysfs_get_dirent so I can get the sysfs_dirent that I want to notify on and hold it in an md structure. - split sysfs_notify_dirent out of sysfs_notify so the sysfs_dirent can be notified on with no blocking (just a spinlock). Signed-off-by: Neil Brown Acked-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 8ec406afb3eb..d8e0230f1e68 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -78,6 +78,8 @@ struct sysfs_ops { ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t); }; +struct sysfs_dirent; + #ifdef CONFIG_SYSFS int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *), @@ -118,10 +120,13 @@ void sysfs_remove_file_from_group(struct kobject *kobj, const struct attribute *attr, const char *group); void sysfs_notify(struct kobject *kobj, char *dir, char *attr); - +void sysfs_notify_dirent(struct sysfs_dirent *sd); +struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, + const unsigned char *name); +struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd); +void sysfs_put(struct sysfs_dirent *sd); void sysfs_printk_last_file(void); - -extern int __must_check sysfs_init(void); +int __must_check sysfs_init(void); #else /* CONFIG_SYSFS */ @@ -227,6 +232,22 @@ static inline void sysfs_remove_file_from_group(struct kobject *kobj, static inline void sysfs_notify(struct kobject *kobj, char *dir, char *attr) { } +static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) +{ +} +static inline +struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, + const unsigned char *name) +{ + return NULL; +} +static inline struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd) +{ + return NULL; +} +static inline void sysfs_put(struct sysfs_dirent *sd) +{ +} static inline int __must_check sysfs_init(void) { -- cgit v1.2.1 From e61396627f91abb855ddd8925be9172fb5871944 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Sat, 20 Sep 2008 19:08:39 -0700 Subject: debug: Introduce a dev_WARN() function in the line of dev_printk(), this patch introduces a dev_WARN() function, that takes a struct device and then a printk format/args set of arguments. Unlike dev_printk(), the effect is that of WARN() in that a full warning message (including filename/line, module list, versions and a backtrace) is printed in addition to the device name and the arguments. Signed-off-by: Arjan van de Ven Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index fb034461b395..ec90e79f6a00 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -570,6 +570,14 @@ extern const char *dev_driver_string(const struct device *dev); ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) #endif +/* + * dev_WARN() acts like dev_printk(), but with the key difference + * of using a WARN/WARN_ON to get the message out, including the + * file/line information and a backtrace. + */ +#define dev_WARN(dev, format, arg...) \ + WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg); + /* Create alias, so I can be autoloaded. */ #define MODULE_ALIAS_CHARDEV(major,minor) \ MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) -- cgit v1.2.1 From d8bf254089a6c31d7d01a4d1d2f1861662900855 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Mon, 22 Sep 2008 14:41:40 -0700 Subject: platform: add new device registration helper Add a helper that registers simple platform_device w/o resources but with parent and device data. This is usefull to cleanup platform code from code that registers such simple devices as leds-gpio, generic-bl, etc. Signed-off-by: Dmitry Baryshkov Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- include/linux/platform_device.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 95ac21ab3a09..4b8cc6a32479 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -37,6 +37,8 @@ extern int platform_add_devices(struct platform_device **, int); extern struct platform_device *platform_device_register_simple(const char *, int id, struct resource *, unsigned int); +extern struct platform_device *platform_device_register_data(struct device *, + const char *, int, const void *, size_t); extern struct platform_device *platform_device_alloc(const char *name, int id); extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num); -- cgit v1.2.1 From 8c0e3998f5b71e68fe6b6e489a92e052715e563c Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Thu, 25 Sep 2008 16:45:13 -0700 Subject: sysfs: Make dir and name args to sysfs_notify() const Because they can be, and because code like this produces a warning if they're not: struct device_attribute dev_attr; sysfs_notify(&kobj, NULL, dev_attr.attr.name); Signed-off-by: Trent Piepho CC: Neil Brown Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index d8e0230f1e68..b330e289d71f 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -119,7 +119,7 @@ int sysfs_add_file_to_group(struct kobject *kobj, void sysfs_remove_file_from_group(struct kobject *kobj, const struct attribute *attr, const char *group); -void sysfs_notify(struct kobject *kobj, char *dir, char *attr); +void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); void sysfs_notify_dirent(struct sysfs_dirent *sd); struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd, const unsigned char *name); @@ -229,7 +229,8 @@ static inline void sysfs_remove_file_from_group(struct kobject *kobj, { } -static inline void sysfs_notify(struct kobject *kobj, char *dir, char *attr) +static inline void sysfs_notify(struct kobject *kobj, const char *dir, + const char *attr) { } static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) -- cgit v1.2.1 From 030c1d2bfcc2187650fb975456ca0b61a5bb77f4 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 8 May 2008 14:41:00 -0700 Subject: kobject: Fix kobject_rename and !CONFIG_SYSFS When looking at kobject_rename I found two bugs with that exist when sysfs support is disabled in the kernel. kobject_rename does not change the name on the kobject when sysfs support is not compiled in. kobject_rename without locking attempts to check the validity of a rename operation, which the kobject layer simply does not have the infrastructure to do. This patch documents the previously unstated requirement of kobject_rename that is the responsibility of the caller to provide mutual exclusion and to be certain that the new_name for the kobject is valid. This patch modifies sysfs_rename_dir in !CONFIG_SYSFS case to call kobject_set_name to actually change the kobject_name. This patch removes the bogus and misleading check in kobject_rename that attempts to see if a rename is valid. The check is bogus because we do not have the proper locking. The check is misleading because it looks like we can and do perform checking at the kobject level that we don't. Signed-off-by: Eric W. Biederman Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index b330e289d71f..39924a962207 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -20,6 +20,8 @@ struct kobject; struct module; +extern int kobject_set_name(struct kobject *kobj, const char *name, ...) + __attribute__((format(printf, 2, 3))); /* FIXME * The *owner field is no longer used, but leave around * until the tree gets cleaned up fully. @@ -147,7 +149,7 @@ static inline void sysfs_remove_dir(struct kobject *kobj) static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name) { - return 0; + return kobject_set_name(kobj, "%s", new_name); } static inline int sysfs_move_dir(struct kobject *kobj, -- cgit v1.2.1 From 0b4a4fea253e1296222603ccc55430ed7cd9413a Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 3 Jul 2008 18:05:28 -0700 Subject: kobject: Cleanup kobject_rename and !CONFIG_SYSFS It finally dawned on me what the clean fix to sysfs_rename_dir calling kobject_set_name is. Move the work into kobject_rename where it belongs. The callers serialize us anyway so this is safe. Signed-off-by: Eric W. Biederman Acked-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 39924a962207..b330e289d71f 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -20,8 +20,6 @@ struct kobject; struct module; -extern int kobject_set_name(struct kobject *kobj, const char *name, ...) - __attribute__((format(printf, 2, 3))); /* FIXME * The *owner field is no longer used, but leave around * until the tree gets cleaned up fully. @@ -149,7 +147,7 @@ static inline void sysfs_remove_dir(struct kobject *kobj) static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name) { - return kobject_set_name(kobj, "%s", new_name); + return 0; } static inline int sysfs_move_dir(struct kobject *kobj, -- cgit v1.2.1 From 99178b036c97293a65004ff5ec5cff9f833aaecd Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 26 Aug 2008 11:00:57 -0500 Subject: Driver core: add bus_sort_breadthfirst() function The PCI core wants to reorder the devices in the bus list. So move this functionality out of the pci core and into the driver core so that anyone else can also do this if needed. This also lets us change how struct device is attached to drivers in the future without messing with the PCI core. Acked-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index ec90e79f6a00..987f5912720a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -90,6 +90,9 @@ int __must_check bus_for_each_drv(struct bus_type *bus, struct device_driver *start, void *data, int (*fn)(struct device_driver *, void *)); +void bus_sort_breadthfirst(struct bus_type *bus, + int (*compare)(const struct device *a, + const struct device *b)); /* * Bus notifiers: Get notified of addition/removal of devices * and binding/unbinding of drivers to devices. -- cgit v1.2.1 From 1648993fb05c487947c1cec6307aca29d8002abe Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 15 Oct 2008 22:01:03 -0700 Subject: introduce generic header file for the software IO/TLB A series of patches introduce a generic header file for the software IO/TLB implementation in lib/swiotlb.c. Currently each architecture using this code defines the prototypes itself. The prototypes are moved to include/linux/swiotlb.h and this file is included in architecture specific code for X86 and IA64. This patch: Create include/linux/swiotlb.h file which contains all function prototypes for the lib/swiotlb.c file. (akpm: the dependent patches will be trickled through arch trees) Signed-off-by: Joerg Roedel Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swiotlb.h | 83 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 include/linux/swiotlb.h (limited to 'include') diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h new file mode 100644 index 000000000000..b18ec5533e8c --- /dev/null +++ b/include/linux/swiotlb.h @@ -0,0 +1,83 @@ +#ifndef __LINUX_SWIOTLB_H +#define __LINUX_SWIOTLB_H + +#include + +struct device; +struct dma_attrs; +struct scatterlist; + +extern void +swiotlb_init(void); + +extern void +*swiotlb_alloc_coherent(struct device *hwdev, size_t size, + dma_addr_t *dma_handle, gfp_t flags); + +extern void +swiotlb_free_coherent(struct device *hwdev, size_t size, + void *vaddr, dma_addr_t dma_handle); + +extern dma_addr_t +swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir); + +extern void +swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir); + +extern dma_addr_t +swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size, + int dir, struct dma_attrs *attrs); + +extern void +swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir, struct dma_attrs *attrs); + +extern int +swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, + int direction); + +extern void +swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, + int direction); + +extern int +swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, + int dir, struct dma_attrs *attrs); + +extern void +swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl, + int nelems, int dir, struct dma_attrs *attrs); + +extern void +swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir); + +extern void +swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, + int nelems, int dir); + +extern void +swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir); + +extern void +swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, + int nelems, int dir); + +extern void +swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr, + unsigned long offset, size_t size, int dir); + +extern void +swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, + unsigned long offset, size_t size, + int dir); + +extern int +swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr); + +extern int +swiotlb_dma_supported(struct device *hwdev, u64 mask); + +#endif /* __LINUX_SWIOTLB_H */ -- cgit v1.2.1 From 9363b9f23c9cc36cc8ef6c05fdf879ee4a96ae92 Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Wed, 15 Oct 2008 22:01:05 -0700 Subject: memrlimit: cgroup mm owner callback changes to add task info This patch adds an additional field to the mm_owner callbacks. This field is required to get to the mm that changed. Hold mmap_sem in write mode before calling the mm_owner_changed callback [hugh@veritas.com: fix mmap_sem deadlock] Signed-off-by: Balbir Singh Cc: Sudhir Kumar Cc: YAMAMOTO Takashi Cc: Paul Menage Cc: Li Zefan Cc: Pavel Emelianov Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Cc: David Rientjes Cc: Vivek Goyal Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index c98dd7cb7076..30934e4bfaab 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -326,7 +326,8 @@ struct cgroup_subsys { */ void (*mm_owner_changed)(struct cgroup_subsys *ss, struct cgroup *old, - struct cgroup *new); + struct cgroup *new, + struct task_struct *p); int subsys_id; int active; int disabled; -- cgit v1.2.1 From e0b0f9e4ead2468f84c26332ec42b118e76af572 Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Wed, 15 Oct 2008 22:01:16 -0700 Subject: h8300: update timer handler - new files New timer handler files. Signed-off-by: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-h8300/timer.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/asm-h8300/timer.h (limited to 'include') diff --git a/include/asm-h8300/timer.h b/include/asm-h8300/timer.h new file mode 100644 index 000000000000..def80464d38f --- /dev/null +++ b/include/asm-h8300/timer.h @@ -0,0 +1,25 @@ +#ifndef __H8300_TIMER_H +#define __H8300_TIMER_H + +void h8300_timer_tick(void); +void h8300_timer_setup(void); +void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day, + unsigned int *hour, unsigned int *min, unsigned int *sec); + +#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */ + +#define calc_param(cnt, div, rate, limit) \ +do { \ + cnt = TIMER_FREQ / HZ; \ + for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \ + if (rate[div] == 0) \ + continue; \ + if ((cnt / rate[div]) > limit) \ + break; \ + } \ + if (div == ARRAY_SIZE(divide_rate)) \ + panic("Timer counter overflow"); \ + cnt /= divide_rate[div]; \ +} while(0) + +#endif -- cgit v1.2.1 From 1bfcf1304ea79c46efc3724e548b13b4b442b418 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 15 Oct 2008 22:01:21 -0700 Subject: pm: rework disabling of user mode helpers during suspend/hibernation We currently use a PM notifier to disable user mode helpers before suspend and hibernation and to re-enable them during resume. However, this is not an ideal solution, because if any drivers want to upload firmware into memory before suspend, they have to use a PM notifier for this purpose and there is no guarantee that the ordering of PM notifiers will be as expected (ie. the notifier that disables user mode helpers has to be run after the driver's notifier used for uploading the firmware). For this reason, it seems better to move the disabling and enabling of user mode helpers to separate functions that will be called by the PM core as necessary. [akpm@linux-foundation.org: remove unneeded ifdefs] Signed-off-by: Rafael J. Wysocki Cc: Alan Stern Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kmod.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/kmod.h b/include/linux/kmod.h index a1a91577813c..92213a9194e1 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -99,4 +99,7 @@ struct file; extern int call_usermodehelper_pipe(char *path, char *argv[], char *envp[], struct file **filp); +extern int usermodehelper_disable(void); +extern void usermodehelper_enable(void); + #endif /* __LINUX_KMOD_H__ */ -- cgit v1.2.1 From d5c003b4d1690e666dbab02bc8e705947baa848c Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 15 Oct 2008 22:01:24 -0700 Subject: include: replace __FUNCTION__ with __func__ __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/acpi/acmacros.h | 6 +++--- include/acpi/platform/acgcc.h | 2 +- include/asm-generic/bug.h | 2 +- include/asm-x86/es7000/apic.h | 2 +- include/asm-x86/summit/apic.h | 2 +- include/linux/ext2_fs.h | 2 +- include/linux/ext3_fs.h | 4 ++-- include/linux/ext3_jbd.h | 14 +++++++------- include/linux/jbd.h | 4 ++-- include/linux/jbd2.h | 4 ++-- include/linux/pm.h | 2 +- include/linux/reiserfs_fs.h | 2 +- include/linux/rtmutex.h | 2 +- include/media/saa7146.h | 2 +- include/net/9p/9p.h | 4 ++-- include/net/bluetooth/bluetooth.h | 4 ++-- include/net/ieee80211.h | 2 +- include/net/ip_vs.h | 4 ++-- include/net/irda/irda.h | 2 +- include/net/sctp/sctp.h | 2 +- include/video/cyblafb.h | 2 +- 21 files changed, 35 insertions(+), 35 deletions(-) (limited to 'include') diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h index 57ab9e9d7593..74a9617776a8 100644 --- a/include/acpi/acmacros.h +++ b/include/acpi/acmacros.h @@ -467,7 +467,7 @@ struct acpi_integer_overlay { /* * If ACPI_GET_FUNCTION_NAME was not defined in the compiler-dependent header, * define it now. This is the case where there the compiler does not support - * a __FUNCTION__ macro or equivalent. + * a __func__ macro or equivalent. */ #ifndef ACPI_GET_FUNCTION_NAME #define ACPI_GET_FUNCTION_NAME _acpi_function_name @@ -475,12 +475,12 @@ struct acpi_integer_overlay { * The Name parameter should be the procedure name as a quoted string. * The function name is also used by the function exit macros below. * Note: (const char) is used to be compatible with the debug interfaces - * and macros such as __FUNCTION__. + * and macros such as __func__. */ #define ACPI_FUNCTION_NAME(name) static const char _acpi_function_name[] = #name; #else -/* Compiler supports __FUNCTION__ (or equivalent) -- Ignore this macro */ +/* Compiler supports __func__ (or equivalent) -- Ignore this macro */ #define ACPI_FUNCTION_NAME(name) #endif diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h index 8996dba90cd9..8e2cdc57b197 100644 --- a/include/acpi/platform/acgcc.h +++ b/include/acpi/platform/acgcc.h @@ -46,7 +46,7 @@ /* Function name is used for debug output. Non-ANSI, compiler-dependent */ -#define ACPI_GET_FUNCTION_NAME __FUNCTION__ +#define ACPI_GET_FUNCTION_NAME __func__ /* * This macro is used to tag functions as "printf-like" because diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index edc6ba82e090..0f6dabd4b517 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -22,7 +22,7 @@ struct bug_entry { #ifndef HAVE_ARCH_BUG #define BUG() do { \ - printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ + printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ panic("BUG!"); \ } while (0) #endif diff --git a/include/asm-x86/es7000/apic.h b/include/asm-x86/es7000/apic.h index bd2c44d1f7ac..aae50c2fb303 100644 --- a/include/asm-x86/es7000/apic.h +++ b/include/asm-x86/es7000/apic.h @@ -171,7 +171,7 @@ static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask) int new_apicid = cpu_to_logical_apicid(cpu); if (apicid_cluster(apicid) != apicid_cluster(new_apicid)){ - printk ("%s: Not a valid mask!\n",__FUNCTION__); + printk ("%s: Not a valid mask!\n", __func__); #if defined CONFIG_ES7000_CLUSTERED_APIC return 0xFF; #else diff --git a/include/asm-x86/summit/apic.h b/include/asm-x86/summit/apic.h index c5b2e4b10358..394b00bb5e72 100644 --- a/include/asm-x86/summit/apic.h +++ b/include/asm-x86/summit/apic.h @@ -160,7 +160,7 @@ static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask) int new_apicid = cpu_to_logical_apicid(cpu); if (apicid_cluster(apicid) != apicid_cluster(new_apicid)){ - printk ("%s: Not a valid mask!\n",__FUNCTION__); + printk ("%s: Not a valid mask!\n", __func__); return 0xFF; } apicid = apicid | new_apicid; diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h index 2efe7b863cff..78c775a83f7c 100644 --- a/include/linux/ext2_fs.h +++ b/include/linux/ext2_fs.h @@ -47,7 +47,7 @@ #ifdef EXT2FS_DEBUG # define ext2_debug(f, a...) { \ printk ("EXT2-fs DEBUG (%s, %d): %s:", \ - __FILE__, __LINE__, __FUNCTION__); \ + __FILE__, __LINE__, __func__); \ printk (f, ## a); \ } #else diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 8120fa1bc235..159d9b476cd7 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -43,7 +43,7 @@ #define ext3_debug(f, a...) \ do { \ printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \ - __FILE__, __LINE__, __FUNCTION__); \ + __FILE__, __LINE__, __func__); \ printk (KERN_DEBUG f, ## a); \ } while (0) #else @@ -871,7 +871,7 @@ extern void ext3_update_dynamic_rev (struct super_block *sb); #define ext3_std_error(sb, errno) \ do { \ if ((errno)) \ - __ext3_std_error((sb), __FUNCTION__, (errno)); \ + __ext3_std_error((sb), __func__, (errno)); \ } while (0) /* diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h index 8c43b13a02fe..cf82d519be40 100644 --- a/include/linux/ext3_jbd.h +++ b/include/linux/ext3_jbd.h @@ -137,17 +137,17 @@ int __ext3_journal_dirty_metadata(const char *where, handle_t *handle, struct buffer_head *bh); #define ext3_journal_get_undo_access(handle, bh) \ - __ext3_journal_get_undo_access(__FUNCTION__, (handle), (bh)) + __ext3_journal_get_undo_access(__func__, (handle), (bh)) #define ext3_journal_get_write_access(handle, bh) \ - __ext3_journal_get_write_access(__FUNCTION__, (handle), (bh)) + __ext3_journal_get_write_access(__func__, (handle), (bh)) #define ext3_journal_revoke(handle, blocknr, bh) \ - __ext3_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh)) + __ext3_journal_revoke(__func__, (handle), (blocknr), (bh)) #define ext3_journal_get_create_access(handle, bh) \ - __ext3_journal_get_create_access(__FUNCTION__, (handle), (bh)) + __ext3_journal_get_create_access(__func__, (handle), (bh)) #define ext3_journal_dirty_metadata(handle, bh) \ - __ext3_journal_dirty_metadata(__FUNCTION__, (handle), (bh)) + __ext3_journal_dirty_metadata(__func__, (handle), (bh)) #define ext3_journal_forget(handle, bh) \ - __ext3_journal_forget(__FUNCTION__, (handle), (bh)) + __ext3_journal_forget(__func__, (handle), (bh)) int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh); @@ -160,7 +160,7 @@ static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks) } #define ext3_journal_stop(handle) \ - __ext3_journal_stop(__FUNCTION__, (handle)) + __ext3_journal_stop(__func__, (handle)) static inline handle_t *ext3_journal_current_handle(void) { diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 07a9b52a2654..7ebbcb1c9ba4 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -61,7 +61,7 @@ extern u8 journal_enable_debug; do { \ if ((n) <= journal_enable_debug) { \ printk (KERN_DEBUG "(%s, %d): %s: ", \ - __FILE__, __LINE__, __FUNCTION__); \ + __FILE__, __LINE__, __func__); \ printk (f, ## a); \ } \ } while (0) @@ -984,7 +984,7 @@ extern int cleanup_journal_tail(journal_t *); #define jbd_ENOSYS() \ do { \ - printk (KERN_ERR "JBD unimplemented function %s\n", __FUNCTION__); \ + printk (KERN_ERR "JBD unimplemented function %s\n", __func__); \ current->state = TASK_UNINTERRUPTIBLE; \ schedule(); \ } while (1) diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index d2e91ea998fd..463d6f10b64f 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -61,7 +61,7 @@ extern u8 jbd2_journal_enable_debug; do { \ if ((n) <= jbd2_journal_enable_debug) { \ printk (KERN_DEBUG "(%s, %d): %s: ", \ - __FILE__, __LINE__, __FUNCTION__); \ + __FILE__, __LINE__, __func__); \ printk (f, ## a); \ } \ } while (0) @@ -1143,7 +1143,7 @@ extern int jbd2_cleanup_journal_tail(journal_t *); #define jbd_ENOSYS() \ do { \ - printk (KERN_ERR "JBD unimplemented function %s\n", __FUNCTION__); \ + printk (KERN_ERR "JBD unimplemented function %s\n", __func__); \ current->state = TASK_UNINTERRUPTIBLE; \ schedule(); \ } while (1) diff --git a/include/linux/pm.h b/include/linux/pm.h index 4dcce54b6d76..42de4003c4ee 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -419,7 +419,7 @@ extern void __suspend_report_result(const char *function, void *fn, int ret); #define suspend_report_result(fn, ret) \ do { \ - __suspend_report_result(__FUNCTION__, fn, ret); \ + __suspend_report_result(__func__, fn, ret); \ } while (0) #else /* !CONFIG_PM_SLEEP */ diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index e9963af16cda..bc5114d35e99 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -87,7 +87,7 @@ void reiserfs_warning(struct super_block *s, const char *fmt, ...); if( !( cond ) ) \ reiserfs_panic( NULL, "reiserfs[%i]: assertion " scond " failed at " \ __FILE__ ":%i:%s: " format "\n", \ - in_interrupt() ? -1 : task_pid_nr(current), __LINE__ , __FUNCTION__ , ##args ) + in_interrupt() ? -1 : task_pid_nr(current), __LINE__ , __func__ , ##args ) #define RASSERT(cond, format, args...) __RASSERT(cond, #cond, format, ##args) diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index 382bb7951166..f19b00b7d530 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -54,7 +54,7 @@ struct hrtimer_sleeper; #ifdef CONFIG_DEBUG_RT_MUTEXES # define __DEBUG_RT_MUTEX_INITIALIZER(mutexname) \ , .name = #mutexname, .file = __FILE__, .line = __LINE__ -# define rt_mutex_init(mutex) __rt_mutex_init(mutex, __FUNCTION__) +# define rt_mutex_init(mutex) __rt_mutex_init(mutex, __func__) extern void rt_mutex_debug_task_free(struct task_struct *tsk); #else # define __DEBUG_RT_MUTEX_INITIALIZER(mutexname) diff --git a/include/media/saa7146.h b/include/media/saa7146.h index 64a2ec746a3e..c5a6e22a4b37 100644 --- a/include/media/saa7146.h +++ b/include/media/saa7146.h @@ -24,7 +24,7 @@ extern unsigned int saa7146_debug; -//#define DEBUG_PROLOG printk("(0x%08x)(0x%08x) %s: %s(): ",(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,RPS_ADDR0))),(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,IER))),KBUILD_MODNAME,__FUNCTION__) +//#define DEBUG_PROLOG printk("(0x%08x)(0x%08x) %s: %s(): ",(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,RPS_ADDR0))),(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,IER))),KBUILD_MODNAME,__func__) #ifndef DEBUG_VARIABLE #define DEBUG_VARIABLE saa7146_debug diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index c3626c0ba9d3..fb163e2e0de6 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -61,7 +61,7 @@ extern unsigned int p9_debug_level; do { \ if ((p9_debug_level & level) == level) \ printk(KERN_NOTICE "-- %s (%d): " \ - format , __FUNCTION__, task_pid_nr(current) , ## arg); \ + format , __func__, task_pid_nr(current) , ## arg); \ } while (0) #define PRINT_FCALL_ERROR(s, fcall) P9_DPRINTK(P9_DEBUG_ERROR, \ @@ -76,7 +76,7 @@ do { \ #define P9_EPRINTK(level, format, arg...) \ do { \ printk(level "9p: %s (%d): " \ - format , __FUNCTION__, task_pid_nr(current), ## arg); \ + format , __func__, task_pid_nr(current), ## arg); \ } while (0) /** diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 6f8418bf4241..996d12df7594 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -54,8 +54,8 @@ #define SOL_RFCOMM 18 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg) -#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg) -#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __FUNCTION__ , ## arg) +#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __func__ , ## arg) +#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg) /* Connection and socket states */ enum { diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 6048579d0b24..93a56de3594b 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -114,7 +114,7 @@ extern u32 ieee80211_debug_level; #define IEEE80211_DEBUG(level, fmt, args...) \ do { if (ieee80211_debug_level & (level)) \ printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ - in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) + in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) static inline bool ieee80211_ratelimit_debug(u32 level) { return (ieee80211_debug_level & level) && net_ratelimit(); diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 0b2071d9326d..fe9fcf73c85e 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -165,13 +165,13 @@ static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len, do { \ if (level <= ip_vs_get_debug_level()) \ printk(KERN_DEBUG "Enter: %s, %s line %i\n", \ - __FUNCTION__, __FILE__, __LINE__); \ + __func__, __FILE__, __LINE__); \ } while (0) #define LeaveFunction(level) \ do { \ if (level <= ip_vs_get_debug_level()) \ printk(KERN_DEBUG "Leave: %s, %s line %i\n", \ - __FUNCTION__, __FILE__, __LINE__); \ + __func__, __FILE__, __LINE__); \ } while (0) #else #define EnterFunction(level) do {} while (0) diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h index 08387553b57e..7e582061b230 100644 --- a/include/net/irda/irda.h +++ b/include/net/irda/irda.h @@ -72,7 +72,7 @@ do { if (irda_debug >= (n)) \ #define IRDA_ASSERT(expr, func) \ do { if(!(expr)) { \ printk( "Assertion failed! %s:%s:%d %s\n", \ - __FILE__,__FUNCTION__,__LINE__,(#expr) ); \ + __FILE__,__func__,__LINE__,(#expr) ); \ func } } while (0) #define IRDA_ASSERT_LABEL(label) label #else diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 703305d00365..ed71b110edf7 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -303,7 +303,7 @@ extern int sctp_debug_flag; #define SCTP_ASSERT(expr, str, func) \ if (!(expr)) { \ SCTP_DEBUG_PRINTK("Assertion Failed: %s(%s) at %s:%s:%d\n", \ - str, (#expr), __FILE__, __FUNCTION__, __LINE__); \ + str, (#expr), __FILE__, __func__, __LINE__); \ func; \ } diff --git a/include/video/cyblafb.h b/include/video/cyblafb.h index 717440575380..d3c1d4e2c8e3 100644 --- a/include/video/cyblafb.h +++ b/include/video/cyblafb.h @@ -4,7 +4,7 @@ #endif #if CYBLAFB_DEBUG -#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a); +#define debug(f,a...) printk("%s:" f, __func__ , ## a); #else #define debug(f,a...) #endif -- cgit v1.2.1 From 693ac389326a87d608baa2902c45a6e78ed46681 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 15 Oct 2008 22:01:25 -0700 Subject: include/linux/mount.h: remove CVS keyword Remove a CVS keyword that wasn't updated for a long time from a comment. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mount.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/mount.h b/include/linux/mount.h index 30a1d63b6fb5..cab2a85e2ee8 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -5,8 +5,6 @@ * * Author: Marco van Wieringen * - * Version: $Id: mount.h,v 2.0 1996/11/17 16:48:14 mvw Exp mvw $ - * */ #ifndef _LINUX_MOUNT_H #define _LINUX_MOUNT_H -- cgit v1.2.1 From 1ecfea06386c6b1344e83c8f909c87c88262ba1d Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Wed, 15 Oct 2008 22:01:27 -0700 Subject: init.h: remove long-dead __setup_null_param() macro This macro appears to have been unused for ages, and there are no invocations of it anywhere in the source tree. Signed-off-by: Robert P. J. Day Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/init.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/init.h b/include/linux/init.h index 93538b696e3d..ad63824460e3 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -233,9 +233,6 @@ struct obs_kernel_param { __attribute__((aligned((sizeof(long))))) \ = { __setup_str_##unique_id, fn, early } -#define __setup_null_param(str, unique_id) \ - __setup_param(str, unique_id, NULL, 0) - #define __setup(str, fn) \ __setup_param(str, fn, fn, 0) @@ -296,7 +293,6 @@ void __init parse_early_param(void); void cleanup_module(void) __attribute__((alias(#exitfn))); #define __setup_param(str, unique_id, fn) /* nothing */ -#define __setup_null_param(str, unique_id) /* nothing */ #define __setup(str, func) /* nothing */ #endif -- cgit v1.2.1 From c80cfb0406c01bb5da91bfe30f5cb1fd96831138 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 15 Oct 2008 22:01:35 -0700 Subject: vsprintf: use new vsprintf symbolic function pointer format Use the '%pF' format to get rid of an "#ifdef DEBUG" and make some printks atomic. This removes the last in-tree uses of print_fn_descriptor_symbol(). I marked print_fn_descriptor_symbol() deprecated and scheduled it for removal next year to give time for out-of-tree modules to be updated. parisc's print_fn_descriptor_symbol() is currently broken there (it needs to dereference the function pointer similar to ia64 and power). This patch shouldn't make anything worse, but it means we need to fix dereference_function_descriptor() instead of print_fn_descriptor_symbol() to get meaningful initcall_debug output. Signed-off-by: Bjorn Helgaas Cc: Jesse Barnes Cc: Kyle McMartin Cc: "Rafael J. Wysocki" Cc: Kay Sievers Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kallsyms.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index b96144887444..f3fe34391d8e 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -93,12 +93,10 @@ static inline void print_symbol(const char *fmt, unsigned long addr) } /* - * Pretty-print a function pointer. - * - * ia64 and ppc64 function pointers are really function descriptors, - * which contain a pointer the real address. + * Pretty-print a function pointer. This function is deprecated. + * Please use the "%pF" vsprintf format instead. */ -static inline void print_fn_descriptor_symbol(const char *fmt, void *addr) +static inline void __deprecated print_fn_descriptor_symbol(const char *fmt, void *addr) { #if defined(CONFIG_IA64) || defined(CONFIG_PPC64) addr = *(void **)addr; -- cgit v1.2.1 From a25d644fc0e232f242d1f3baa63c149c42536ff0 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 15 Oct 2008 22:01:38 -0700 Subject: wait: kill is_sync_wait() is_sync_wait() is used to distinguish between sync and async waits. Basically sync waits are the ones initialized with init_waitqueue_entry() and async ones with init_waitqueue_func_entry(). The sync/async distinction is used only in prepare_to_wait[_exclusive]() and its only function is to skip setting the current task state if the wait is async. This has a few problems. * No one uses it. None of func_entry users use prepare_to_wait() functions, so the code path never gets executed. * The distinction is bogus. Maybe back when func_entry is used only by aio but it's now also used by epoll and in future possibly by 9p and poll/select. * Taking @state as argument and ignoring it silenly depending on how @wait is initialized is just a bad error-prone API. * It prevents func_entry waits from using wait->private for no good reason. This patch kills is_sync_wait() and the associated code paths from prepare_to_wait[_exclusive](). As there was no user of these code paths, this patch doesn't cause any behavior difference. Signed-off-by: Tejun Heo Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/wait.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/linux/wait.h b/include/linux/wait.h index 0081147a9fe8..ef609f842fac 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -108,15 +108,6 @@ static inline int waitqueue_active(wait_queue_head_t *q) return !list_empty(&q->task_list); } -/* - * Used to distinguish between sync and async io wait context: - * sync i/o typically specifies a NULL wait queue entry or a wait - * queue entry bound to a task (current task) to wake up. - * aio specifies a wait queue entry with an async notification - * callback routine, not associated with any task. - */ -#define is_sync_wait(wait) (!(wait) || ((wait)->private)) - extern void add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait); extern void add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_t *wait); extern void remove_wait_queue(wait_queue_head_t *q, wait_queue_t *wait); -- cgit v1.2.1 From 25ddbb18aae33ad255eb9f35aacebe3af01e1e9c Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 15 Oct 2008 22:01:41 -0700 Subject: Make the taint flags reliable It's somewhat unlikely that it happens, but right now a race window between interrupts or machine checks or oopses could corrupt the tainted bitmap because it is modified in a non atomic fashion. Convert the taint variable to an unsigned long and use only atomic bit operations on it. Unfortunately this means the intvec sysctl functions cannot be used on it anymore. It turned out the taint sysctl handler could actually be simplified a bit (since it only increases capabilities) so this patch actually removes code. [akpm@linux-foundation.org: remove unneeded include] Signed-off-by: Andi Kleen Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 75d81f157d2e..e971c55f45ac 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -235,9 +235,10 @@ extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in extern int panic_timeout; extern int panic_on_oops; extern int panic_on_unrecovered_nmi; -extern int tainted; extern const char *print_tainted(void); -extern void add_taint(unsigned); +extern void add_taint(unsigned flag); +extern int test_taint(unsigned flag); +extern unsigned long get_taint(void); extern int root_mountflags; /* Values used for system_state */ @@ -250,16 +251,16 @@ extern enum system_states { SYSTEM_SUSPEND_DISK, } system_state; -#define TAINT_PROPRIETARY_MODULE (1<<0) -#define TAINT_FORCED_MODULE (1<<1) -#define TAINT_UNSAFE_SMP (1<<2) -#define TAINT_FORCED_RMMOD (1<<3) -#define TAINT_MACHINE_CHECK (1<<4) -#define TAINT_BAD_PAGE (1<<5) -#define TAINT_USER (1<<6) -#define TAINT_DIE (1<<7) -#define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8) -#define TAINT_WARN (1<<9) +#define TAINT_PROPRIETARY_MODULE 0 +#define TAINT_FORCED_MODULE 1 +#define TAINT_UNSAFE_SMP 2 +#define TAINT_FORCED_RMMOD 3 +#define TAINT_MACHINE_CHECK 4 +#define TAINT_BAD_PAGE 5 +#define TAINT_USER 6 +#define TAINT_DIE 7 +#define TAINT_OVERRIDDEN_ACPI_TABLE 8 +#define TAINT_WARN 9 extern void dump_stack(void) __cold; -- cgit v1.2.1 From 22b8ce94708f7cdf0b04965c6f7443dfd374c35c Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Wed, 15 Oct 2008 22:01:46 -0700 Subject: profiling: dynamically enable readprofile at runtime Way too often, I have a machine that exhibits some kind of crappy behavior. The CPU looks wedged in the kernel or it is spending way too much system time and I wonder what is responsible. I try to run readprofile. But, of course, Ubuntu doesn't enable it by default. Dang! The reason we boot-time enable it is that it takes a big bufffer that we generally can only bootmem alloc. But, does it hurt to at least try and runtime-alloc it? To use: echo 2 > /sys/kernel/profile Then run readprofile like normal. This should fix the compile issue with allmodconfig. I've compile-tested on a bunch more configs now including a few more architectures. Signed-off-by: Dave Hansen Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/profile.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/profile.h b/include/linux/profile.h index 7e7087239af5..570045053ce9 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -35,7 +35,9 @@ enum profile_type { extern int prof_on __read_mostly; /* init basic kernel profiler */ -void __init profile_init(void); +int profile_init(void); +int profile_setup(char *str); +int create_proc_profile(void); void profile_tick(int type); /* @@ -84,9 +86,9 @@ struct pt_regs; #define prof_on 0 -static inline void profile_init(void) +static inline int profile_init(void) { - return; + return 0; } static inline void profile_tick(int type) -- cgit v1.2.1 From e1f8e87449147ffe5ea3de64a46af7de450ce279 Mon Sep 17 00:00:00 2001 From: Francois Cami Date: Wed, 15 Oct 2008 22:01:59 -0700 Subject: Remove Andrew Morton's old email accounts People can use the real name an an index into MAINTAINERS to find the current email address. Signed-off-by: Francois Cami Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/journal-head.h | 2 +- include/linux/task_io_accounting.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h index 8a62d1e84b9b..bb70ebb6a2d5 100644 --- a/include/linux/journal-head.h +++ b/include/linux/journal-head.h @@ -3,7 +3,7 @@ * * buffer_head fields for JBD * - * 27 May 2001 Andrew Morton + * 27 May 2001 Andrew Morton * Created - pulled out of fs.h */ diff --git a/include/linux/task_io_accounting.h b/include/linux/task_io_accounting.h index 5e88afc9a2fb..bdf855c2856f 100644 --- a/include/linux/task_io_accounting.h +++ b/include/linux/task_io_accounting.h @@ -5,7 +5,7 @@ * Don't include this header file directly - it is designed to be dragged in via * sched.h. * - * Blame akpm@osdl.org for all this. + * Blame Andrew Morton for all this. */ struct task_io_accounting { -- cgit v1.2.1 From f7ad160b49c49dc9cd383b9184c6fa4a9b4f7ebb Mon Sep 17 00:00:00 2001 From: Alex Raimondi Date: Wed, 15 Oct 2008 22:02:03 -0700 Subject: include/linux/clk.h: fix comment clk_get and clk_put may not be used from within interrupt context. Change comment to this function. Signed-off-by: Alex Raimondi Signed-off-by: Haavard Skinnemoen Acked-by: Russell King Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/clk.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/clk.h b/include/linux/clk.h index 5ca8c6fddb56..778777316ea4 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -35,6 +35,8 @@ struct clk; * clk_get may return different clock producers depending on @dev.) * * Drivers must assume that the clock source is not enabled. + * + * clk_get should not be called from within interrupt context. */ struct clk *clk_get(struct device *dev, const char *id); @@ -76,6 +78,8 @@ unsigned long clk_get_rate(struct clk *clk); * Note: drivers must ensure that all clk_enable calls made on this * clock source are balanced by clk_disable calls prior to calling * this function. + * + * clk_put should not be called from within interrupt context. */ void clk_put(struct clk *clk); -- cgit v1.2.1 From f7a5000f7a8924e9c5fad1801616601d6dc65a17 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 15 Oct 2008 22:02:05 -0700 Subject: compat: move cp_compat_stat to common code struct stat / compat_stat is the same on all architectures, so cp_compat_stat should be, too. Turns out it is, except that various architectures have slightly and some high2lowuid/high2lowgid or the direct assignment instead of the SET_UID/SET_GID that expands to the correct one anyway. This patch replaces the arch-specific cp_compat_stat implementations with a common one based on the x86-64 one. Signed-off-by: Christoph Hellwig Acked-by: David S. Miller [ sparc bits ] Acked-by: Kyle McMartin [ parisc bits ] Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/compat.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/compat.h b/include/linux/compat.h index cf8d11cad5ae..999dddd8d939 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -78,7 +78,6 @@ typedef struct { compat_sigset_word sig[_COMPAT_NSIG_WORDS]; } compat_sigset_t; -extern int cp_compat_stat(struct kstat *, struct compat_stat __user *); extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *); extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *); -- cgit v1.2.1 From b418da16dd44810e5d5a22bba377cca80512a524 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 15 Oct 2008 22:02:06 -0700 Subject: compat: generic compat get/settimeofday Nothing arch specific in get/settimeofday. The details of the timeval conversion varied a little from arch to arch, but all with the same results. Also add an extern declaration for sys_tz to linux/time.h because externs in .c files are fowned upon. I'll kill the externs in various other files in a sparate patch. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Christoph Hellwig Acked-by: David S. Miller [ sparc bits ] Cc: "Luck, Tony" Cc: Ralf Baechle Acked-by: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/compat.h | 5 +++++ include/linux/time.h | 2 ++ 2 files changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/compat.h b/include/linux/compat.h index 999dddd8d939..f061a1ea1b74 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -234,6 +234,11 @@ extern int get_compat_itimerspec(struct itimerspec *dst, extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, const struct itimerspec *src); +asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, + struct timezone __user *tz); +asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, + struct timezone __user *tz); + asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); extern int compat_printk(const char *fmt, ...); diff --git a/include/linux/time.h b/include/linux/time.h index e15206a7e82e..51e883df0fa5 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -29,6 +29,8 @@ struct timezone { #ifdef __KERNEL__ +extern struct timezone sys_tz; + /* Parameters used to convert the timespec values: */ #define MSEC_PER_SEC 1000L #define USEC_PER_MSEC 1000L -- cgit v1.2.1 From bdab0ba3d9ad8de257ee6236daf314723748fde6 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 15 Oct 2008 22:02:07 -0700 Subject: x86: rename iommu_num_pages function to iommu_nr_pages This series of patches re-introduces the iommu_num_pages function so that it can be used by each architecture specific IOMMU implementations. The series also changes IOMMU implementations for X86, Alpha, PowerPC and UltraSparc. The other implementations are not yet changed because the modifications required are not obvious and I can't test them on real hardware. This patch: This is a preparation patch for introducing a generic iommu_num_pages function. Signed-off-by: Joerg Roedel Cc: "David S. Miller" Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Ingo Molnar Cc: Thomas Gleixner Cc: FUJITA Tomonori Cc: Muli Ben-Yehuda Cc: Dave Airlie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-x86/iommu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/iommu.h b/include/asm-x86/iommu.h index 546ad3110fea..961e746da977 100644 --- a/include/asm-x86/iommu.h +++ b/include/asm-x86/iommu.h @@ -8,7 +8,7 @@ extern int force_iommu, no_iommu; extern int iommu_detected; extern int dmar_disabled; -extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len); +extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len); #ifdef CONFIG_GART_IOMMU extern int gart_iommu_aperture; -- cgit v1.2.1 From 56d936607408d71c4141b2ed501410b072f1e211 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 15 Oct 2008 22:02:10 -0700 Subject: introduce generic iommu_num_pages function This patch introduces the generic iommu_num_pages function. It can be used by a given memory area. Signed-off-by: Joerg Roedel Cc: "David S. Miller" Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Ingo Molnar Cc: Thomas Gleixner Cc: FUJITA Tomonori Cc: Muli Ben-Yehuda Cc: Dave Airlie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/iommu-helper.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h index a6d0586e2bf7..3b068e5b5671 100644 --- a/include/linux/iommu-helper.h +++ b/include/linux/iommu-helper.h @@ -23,4 +23,7 @@ extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size, extern void iommu_area_free(unsigned long *map, unsigned long start, unsigned int nr); +extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len, + unsigned long io_page_size); + #endif -- cgit v1.2.1 From 53112488bebe25c0f5f8a002470046c0fe9a6c61 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Wed, 15 Oct 2008 22:02:37 -0700 Subject: alpha: introduce field 'taso' into struct linux_binprm This change is Alpha-specific. It adds field 'taso' into struct linux_binprm to remember if the application is TASO. Previously, field sh_bang was used for this purpose. Signed-off-by: Kirill A. Shutemov Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Pavel Emelyanov Cc: Alexander Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/binfmts.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index 826f62350805..54980a3c7602 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -36,6 +36,9 @@ struct linux_binprm{ unsigned long p; /* current top of mem */ unsigned int sh_bang:1, misc_bang:1; +#ifdef __alpha__ + unsigned int taso:1; +#endif struct file * file; int e_uid, e_gid; kernel_cap_t cap_post_exec_permitted; -- cgit v1.2.1 From bf2a9a39639b8b51377905397a5005f444e9a892 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Wed, 15 Oct 2008 22:02:39 -0700 Subject: Allow recursion in binfmt_script and binfmt_misc binfmt_script and binfmt_misc disallow recursion to avoid stack overflow using sh_bang and misc_bang. It causes problem in some cases: $ echo '#!/bin/ls' > /tmp/t0 $ echo '#!/tmp/t0' > /tmp/t1 $ echo '#!/tmp/t1' > /tmp/t2 $ chmod +x /tmp/t* $ /tmp/t2 zsh: exec format error: /tmp/t2 Similar problem with binfmt_misc. This patch introduces field 'recursion_depth' into struct linux_binprm to track recursion level in binfmt_misc and binfmt_script. If recursion level more then BINPRM_MAX_RECURSION it generates -ENOEXEC. [akpm@linux-foundation.org: make linux_binprm.recursion_depth a uint] Signed-off-by: Kirill A. Shutemov Cc: Pavel Emelyanov Cc: Alexander Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/binfmts.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index 54980a3c7602..7394b5b349ff 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -39,6 +39,7 @@ struct linux_binprm{ #ifdef __alpha__ unsigned int taso:1; #endif + unsigned int recursion_depth; struct file * file; int e_uid, e_gid; kernel_cap_t cap_post_exec_permitted; @@ -61,6 +62,7 @@ struct linux_binprm{ #define BINPRM_FLAGS_EXECFD_BIT 1 #define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT) +#define BINPRM_MAX_RECURSION 4 /* * This structure defines the functions that are used to load the binary formats that -- cgit v1.2.1 From 2bec19feabd53cba75e9dab0e79afbe868a37113 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Wed, 15 Oct 2008 22:02:44 -0700 Subject: orion_spi: handle 88F6183 erratum Add support to orion_spi for the 88F6183 ARM SoC by adding code to work around a 6183-specific erratum. Signed-off-by: Lennert Buytenhek Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/spi/orion_spi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/spi/orion_spi.h b/include/linux/spi/orion_spi.h index b4d9fa6f797c..decf6d8c77b7 100644 --- a/include/linux/spi/orion_spi.h +++ b/include/linux/spi/orion_spi.h @@ -11,6 +11,7 @@ struct orion_spi_info { u32 tclk; /* no support yet */ + u32 enable_clock_fix; }; -- cgit v1.2.1 From 9d793b0bcbbbc37d80241862dfa5257963d5415e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 15 Oct 2008 22:02:47 -0700 Subject: i2o: Fix 32/64bit DMA locking The I2O ioctls assume 32bits. In itself that is fine as they are old cards and nobody uses 64bit. However on LKML it was noted this assumption is also made for allocated memory and is unsafe on 64bit systems. Fixing this is a mess. It turns out there is tons of crap buried in a header file that does racy 32/64bit filtering on the masks. So we: - Verify all callers of the racy code can sleep (i2o_dma_[re]alloc) - Move the code into a new i2o/memory.c file - Remove the gfp_mask argument so nobody can try and misuse the function - Wrap a mutex around the problem area (a single mutex is easy to do and none of this is performance relevant) - Switch the remaining problem kmalloc holdout to use i2o_dma_alloc Cc: Markus Lidel Cc: Vasily Averin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/i2o.h | 292 +++------------------------------------------------- 1 file changed, 12 insertions(+), 280 deletions(-) (limited to 'include') diff --git a/include/linux/i2o.h b/include/linux/i2o.h index 75ae6d8aba4f..4c4e57d1f19d 100644 --- a/include/linux/i2o.h +++ b/include/linux/i2o.h @@ -570,7 +570,6 @@ struct i2o_controller { #endif spinlock_t lock; /* lock for controller configuration */ - void *driver_data[I2O_MAX_DRIVERS]; /* storage for drivers */ }; @@ -691,289 +690,22 @@ static inline u32 i2o_dma_high(dma_addr_t dma_addr) }; #endif -/** - * i2o_sg_tablesize - Calculate the maximum number of elements in a SGL - * @c: I2O controller for which the calculation should be done - * @body_size: maximum body size used for message in 32-bit words. - * - * Return the maximum number of SG elements in a SG list. - */ -static inline u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size) -{ - i2o_status_block *sb = c->status_block.virt; - u16 sg_count = - (sb->inbound_frame_size - sizeof(struct i2o_message) / 4) - - body_size; - - if (c->pae_support) { - /* - * for 64-bit a SG attribute element must be added and each - * SG element needs 12 bytes instead of 8. - */ - sg_count -= 2; - sg_count /= 3; - } else - sg_count /= 2; - - if (c->short_req && (sg_count > 8)) - sg_count = 8; - - return sg_count; -}; - -/** - * i2o_dma_map_single - Map pointer to controller and fill in I2O message. - * @c: I2O controller - * @ptr: pointer to the data which should be mapped - * @size: size of data in bytes - * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE - * @sg_ptr: pointer to the SG list inside the I2O message - * - * This function does all necessary DMA handling and also writes the I2O - * SGL elements into the I2O message. For details on DMA handling see also - * dma_map_single(). The pointer sg_ptr will only be set to the end of the - * SG list if the allocation was successful. - * - * Returns DMA address which must be checked for failures using - * dma_mapping_error(). - */ -static inline dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr, +extern u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size); +extern dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr, size_t size, enum dma_data_direction direction, - u32 ** sg_ptr) -{ - u32 sg_flags; - u32 *mptr = *sg_ptr; - dma_addr_t dma_addr; - - switch (direction) { - case DMA_TO_DEVICE: - sg_flags = 0xd4000000; - break; - case DMA_FROM_DEVICE: - sg_flags = 0xd0000000; - break; - default: - return 0; - } - - dma_addr = dma_map_single(&c->pdev->dev, ptr, size, direction); - if (!dma_mapping_error(&c->pdev->dev, dma_addr)) { -#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64 - if ((sizeof(dma_addr_t) > 4) && c->pae_support) { - *mptr++ = cpu_to_le32(0x7C020002); - *mptr++ = cpu_to_le32(PAGE_SIZE); - } -#endif - - *mptr++ = cpu_to_le32(sg_flags | size); - *mptr++ = cpu_to_le32(i2o_dma_low(dma_addr)); -#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64 - if ((sizeof(dma_addr_t) > 4) && c->pae_support) - *mptr++ = cpu_to_le32(i2o_dma_high(dma_addr)); -#endif - *sg_ptr = mptr; - } - return dma_addr; -}; - -/** - * i2o_dma_map_sg - Map a SG List to controller and fill in I2O message. - * @c: I2O controller - * @sg: SG list to be mapped - * @sg_count: number of elements in the SG list - * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE - * @sg_ptr: pointer to the SG list inside the I2O message - * - * This function does all necessary DMA handling and also writes the I2O - * SGL elements into the I2O message. For details on DMA handling see also - * dma_map_sg(). The pointer sg_ptr will only be set to the end of the SG - * list if the allocation was successful. - * - * Returns 0 on failure or 1 on success. - */ -static inline int i2o_dma_map_sg(struct i2o_controller *c, + u32 ** sg_ptr); +extern int i2o_dma_map_sg(struct i2o_controller *c, struct scatterlist *sg, int sg_count, enum dma_data_direction direction, - u32 ** sg_ptr) -{ - u32 sg_flags; - u32 *mptr = *sg_ptr; - - switch (direction) { - case DMA_TO_DEVICE: - sg_flags = 0x14000000; - break; - case DMA_FROM_DEVICE: - sg_flags = 0x10000000; - break; - default: - return 0; - } - - sg_count = dma_map_sg(&c->pdev->dev, sg, sg_count, direction); - if (!sg_count) - return 0; - -#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64 - if ((sizeof(dma_addr_t) > 4) && c->pae_support) { - *mptr++ = cpu_to_le32(0x7C020002); - *mptr++ = cpu_to_le32(PAGE_SIZE); - } -#endif - - while (sg_count-- > 0) { - if (!sg_count) - sg_flags |= 0xC0000000; - *mptr++ = cpu_to_le32(sg_flags | sg_dma_len(sg)); - *mptr++ = cpu_to_le32(i2o_dma_low(sg_dma_address(sg))); -#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64 - if ((sizeof(dma_addr_t) > 4) && c->pae_support) - *mptr++ = cpu_to_le32(i2o_dma_high(sg_dma_address(sg))); -#endif - sg = sg_next(sg); - } - *sg_ptr = mptr; - - return 1; -}; - -/** - * i2o_dma_alloc - Allocate DMA memory - * @dev: struct device pointer to the PCI device of the I2O controller - * @addr: i2o_dma struct which should get the DMA buffer - * @len: length of the new DMA memory - * @gfp_mask: GFP mask - * - * Allocate a coherent DMA memory and write the pointers into addr. - * - * Returns 0 on success or -ENOMEM on failure. - */ -static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, - size_t len, gfp_t gfp_mask) -{ - struct pci_dev *pdev = to_pci_dev(dev); - int dma_64 = 0; - - if ((sizeof(dma_addr_t) > 4) && (pdev->dma_mask == DMA_64BIT_MASK)) { - dma_64 = 1; - if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) - return -ENOMEM; - } - - addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask); - - if ((sizeof(dma_addr_t) > 4) && dma_64) - if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)) - printk(KERN_WARNING "i2o: unable to set 64-bit DMA"); - - if (!addr->virt) - return -ENOMEM; - - memset(addr->virt, 0, len); - addr->len = len; - - return 0; -}; - -/** - * i2o_dma_free - Free DMA memory - * @dev: struct device pointer to the PCI device of the I2O controller - * @addr: i2o_dma struct which contains the DMA buffer - * - * Free a coherent DMA memory and set virtual address of addr to NULL. - */ -static inline void i2o_dma_free(struct device *dev, struct i2o_dma *addr) -{ - if (addr->virt) { - if (addr->phys) - dma_free_coherent(dev, addr->len, addr->virt, - addr->phys); - else - kfree(addr->virt); - addr->virt = NULL; - } -}; - -/** - * i2o_dma_realloc - Realloc DMA memory - * @dev: struct device pointer to the PCI device of the I2O controller - * @addr: pointer to a i2o_dma struct DMA buffer - * @len: new length of memory - * @gfp_mask: GFP mask - * - * If there was something allocated in the addr, free it first. If len > 0 - * than try to allocate it and write the addresses back to the addr - * structure. If len == 0 set the virtual address to NULL. - * - * Returns the 0 on success or negative error code on failure. - */ -static inline int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr, - size_t len, gfp_t gfp_mask) -{ - i2o_dma_free(dev, addr); - - if (len) - return i2o_dma_alloc(dev, addr, len, gfp_mask); - - return 0; -}; - -/* - * i2o_pool_alloc - Allocate an slab cache and mempool - * @mempool: pointer to struct i2o_pool to write data into. - * @name: name which is used to identify cache - * @size: size of each object - * @min_nr: minimum number of objects - * - * First allocates a slab cache with name and size. Then allocates a - * mempool which uses the slab cache for allocation and freeing. - * - * Returns 0 on success or negative error code on failure. - */ -static inline int i2o_pool_alloc(struct i2o_pool *pool, const char *name, - size_t size, int min_nr) -{ - pool->name = kmalloc(strlen(name) + 1, GFP_KERNEL); - if (!pool->name) - goto exit; - strcpy(pool->name, name); - - pool->slab = - kmem_cache_create(pool->name, size, 0, SLAB_HWCACHE_ALIGN, NULL); - if (!pool->slab) - goto free_name; - - pool->mempool = mempool_create_slab_pool(min_nr, pool->slab); - if (!pool->mempool) - goto free_slab; - - return 0; - - free_slab: - kmem_cache_destroy(pool->slab); - - free_name: - kfree(pool->name); - - exit: - return -ENOMEM; -}; - -/* - * i2o_pool_free - Free slab cache and mempool again - * @mempool: pointer to struct i2o_pool which should be freed - * - * Note that you have to return all objects to the mempool again before - * calling i2o_pool_free(). - */ -static inline void i2o_pool_free(struct i2o_pool *pool) -{ - mempool_destroy(pool->mempool); - kmem_cache_destroy(pool->slab); - kfree(pool->name); -}; - + u32 ** sg_ptr); +extern int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, size_t len); +extern void i2o_dma_free(struct device *dev, struct i2o_dma *addr); +extern int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr, + size_t len); +extern int i2o_pool_alloc(struct i2o_pool *pool, const char *name, + size_t size, int min_nr); +extern void i2o_pool_free(struct i2o_pool *pool); /* I2O driver (OSM) functions */ extern int i2o_driver_register(struct i2o_driver *); extern void i2o_driver_unregister(struct i2o_driver *); -- cgit v1.2.1 From bb979d7fc360bc37cbaff43a6fafceb897cb5e47 Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Wed, 15 Oct 2008 22:02:52 -0700 Subject: autofs4: cleanup autofs mount type usage Usage of the AUTOFS_TYPE_* defines is a little confusing and appears inconsistent. Signed-off-by: Ian Kent Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/auto_fs4.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h index b785c6f8644d..aa96a04ae023 100644 --- a/include/linux/auto_fs4.h +++ b/include/linux/auto_fs4.h @@ -29,6 +29,11 @@ #define AUTOFS_EXP_IMMEDIATE 1 #define AUTOFS_EXP_LEAVES 2 +#define AUTOFS_TYPE_ANY 0x0000 +#define AUTOFS_TYPE_INDIRECT 0x0001 +#define AUTOFS_TYPE_DIRECT 0x0002 +#define AUTOFS_TYPE_OFFSET 0x0004 + /* Daemon notification packet types */ enum autofs_notify { NFY_NONE, -- cgit v1.2.1 From 8d7b48e0bc5fa01a818eac713d4cb0763090cd0e Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Wed, 15 Oct 2008 22:02:54 -0700 Subject: autofs4: add miscellaneous device for ioctls Add a miscellaneous device to the autofs4 module for routing ioctls. This provides the ability to obtain an ioctl file handle for an autofs mount point that is possibly covered by another mount. The actual problem with autofs is that it can't reconnect to existing mounts. Immediately one things of just adding the ability to remount autofs file systems would solve it, but alas, that can't work. This is because autofs direct mounts and the implementation of "on demand mount and expire" of nested mount trees have the file system mounted on top of the mount trigger dentry. To resolve this a miscellaneous device node for routing ioctl commands to these mount points has been implemented in the autofs4 kernel module and a library added to autofs. This provides the ability to open a file descriptor for these over mounted autofs mount points. Please refer to Documentation/filesystems/autofs4-mount-control.txt for a discussion of the problem, implementation alternatives considered and a description of the interface. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: build fix] Signed-off-by: Ian Kent Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/auto_dev-ioctl.h | 157 +++++++++++++++++++++++++++++++++++++++++ include/linux/auto_fs4.h | 2 +- 2 files changed, 158 insertions(+), 1 deletion(-) create mode 100644 include/linux/auto_dev-ioctl.h (limited to 'include') diff --git a/include/linux/auto_dev-ioctl.h b/include/linux/auto_dev-ioctl.h new file mode 100644 index 000000000000..f4d05ccd731f --- /dev/null +++ b/include/linux/auto_dev-ioctl.h @@ -0,0 +1,157 @@ +/* + * Copyright 2008 Red Hat, Inc. All rights reserved. + * Copyright 2008 Ian Kent + * + * This file is part of the Linux kernel and is made available under + * the terms of the GNU General Public License, version 2, or at your + * option, any later version, incorporated herein by reference. + */ + +#ifndef _LINUX_AUTO_DEV_IOCTL_H +#define _LINUX_AUTO_DEV_IOCTL_H + +#include + +#define AUTOFS_DEVICE_NAME "autofs" + +#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1 +#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0 + +#define AUTOFS_DEVID_LEN 16 + +#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl) + +/* + * An ioctl interface for autofs mount point control. + */ + +/* + * All the ioctls use this structure. + * When sending a path size must account for the total length + * of the chunk of memory otherwise is is the size of the + * structure. + */ + +struct autofs_dev_ioctl { + __u32 ver_major; + __u32 ver_minor; + __u32 size; /* total size of data passed in + * including this struct */ + __s32 ioctlfd; /* automount command fd */ + + __u32 arg1; /* Command parameters */ + __u32 arg2; + + char path[0]; +}; + +static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in) +{ + in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR; + in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR; + in->size = sizeof(struct autofs_dev_ioctl); + in->ioctlfd = -1; + in->arg1 = 0; + in->arg2 = 0; + return; +} + +/* + * If you change this make sure you make the corresponding change + * to autofs-dev-ioctl.c:lookup_ioctl() + */ +enum { + /* Get various version info */ + AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71, + AUTOFS_DEV_IOCTL_PROTOVER_CMD, + AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, + + /* Open mount ioctl fd */ + AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, + + /* Close mount ioctl fd */ + AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, + + /* Mount/expire status returns */ + AUTOFS_DEV_IOCTL_READY_CMD, + AUTOFS_DEV_IOCTL_FAIL_CMD, + + /* Activate/deactivate autofs mount */ + AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, + AUTOFS_DEV_IOCTL_CATATONIC_CMD, + + /* Expiry timeout */ + AUTOFS_DEV_IOCTL_TIMEOUT_CMD, + + /* Get mount last requesting uid and gid */ + AUTOFS_DEV_IOCTL_REQUESTER_CMD, + + /* Check for eligible expire candidates */ + AUTOFS_DEV_IOCTL_EXPIRE_CMD, + + /* Request busy status */ + AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, + + /* Check if path is a mountpoint */ + AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, +}; + +#define AUTOFS_IOCTL 0x93 + +#define AUTOFS_DEV_IOCTL_VERSION \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_PROTOVER \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_PROTOSUBVER \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_OPENMOUNT \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_READY \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_FAIL \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_SETPIPEFD \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_CATATONIC \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_TIMEOUT \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_REQUESTER \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_EXPIRE \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_ASKUMOUNT \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl) + +#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \ + _IOWR(AUTOFS_IOCTL, \ + AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl) + +#endif /* _LINUX_AUTO_DEV_IOCTL_H */ diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h index aa96a04ae023..2253716d4b92 100644 --- a/include/linux/auto_fs4.h +++ b/include/linux/auto_fs4.h @@ -23,7 +23,7 @@ #define AUTOFS_MIN_PROTO_VERSION 3 #define AUTOFS_MAX_PROTO_VERSION 5 -#define AUTOFS_PROTO_SUBVERSION 0 +#define AUTOFS_PROTO_SUBVERSION 1 /* Mask for expire behaviour */ #define AUTOFS_EXP_IMMEDIATE 1 -- cgit v1.2.1 From 4fd5463c43d75ec919e27abdcfde1b199c19541e Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Wed, 15 Oct 2008 22:03:10 -0700 Subject: gpio: make gpiochip label const Mark gpiochip label as a const char pointer. Fixes things like arch/arm/common/scoop.c: In function `scoop_probe': arch/arm/common/scoop.c:250: warning: assignment discards qualifiers from pointer target type Signed-off-by: Dmitry Baryshkov Acked-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/gpio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 0f99ad38b012..2c5744b66dec 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -61,7 +61,7 @@ struct module; * is calculated by subtracting @base from the gpio number. */ struct gpio_chip { - char *label; + const char *label; struct device *dev; struct module *owner; -- cgit v1.2.1 From 3d599d1ca57f443e5c4ff5af1e69d90350082f77 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 15 Oct 2008 22:03:12 -0700 Subject: gpio_free might sleep, generic part MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the documentation gpio_free should only be called from task context only. To make this more explicit add a might sleep to all implementations. This is the generic part which changes gpiolib and the fallback implementation only. Signed-off-by: Uwe Kleine-König Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gpio.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 730a20b83576..e10c49a5b96e 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -8,6 +8,7 @@ #else +#include #include #include @@ -32,6 +33,8 @@ static inline int gpio_request(unsigned gpio, const char *label) static inline void gpio_free(unsigned gpio) { + might_sleep(); + /* GPIO can never have been requested */ WARN_ON(1); } -- cgit v1.2.1 From 0f6d504e73b49374c6093efe6aa60ab55058248a Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 15 Oct 2008 22:03:14 -0700 Subject: gpiolib: gpio_to_irq() hooks Add a new gpiolib mechanism: gpio_chip instances can provide mappings between their (input) GPIOs and any associated IRQs. This makes it easier for platforms to support IRQs that are provided by board-specific external chips instead of as part of their core (such as SOC-integrated GPIOs). Also update the irq_to_gpio() description, saying to avoid it because it's not always supported. Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/gpio.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 2c5744b66dec..04cb1d175df1 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -40,6 +40,8 @@ struct module; * returns either the value actually sensed, or zero * @direction_output: configures signal "offset" as output, or returns error * @set: assigns output value for signal "offset" + * @to_irq: optional hook supporting non-static gpio_to_irq() mappings; + * implementation may not sleep * @dbg_show: optional routine to show contents in debugfs; default code * will be used when this is omitted, but custom code can show extra * state (such as pullup/pulldown configuration). @@ -73,6 +75,10 @@ struct gpio_chip { unsigned offset, int value); void (*set)(struct gpio_chip *chip, unsigned offset, int value); + + int (*to_irq)(struct gpio_chip *chip, + unsigned offset); + void (*dbg_show)(struct seq_file *s, struct gpio_chip *chip); int base; @@ -112,6 +118,7 @@ extern void __gpio_set_value(unsigned gpio, int value); extern int __gpio_cansleep(unsigned gpio); +extern int __gpio_to_irq(unsigned gpio); #ifdef CONFIG_GPIO_SYSFS -- cgit v1.2.1 From 35e8bb5175c1a6ff6253f1a2acb30bfe52a2f500 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 15 Oct 2008 22:03:16 -0700 Subject: gpiolib: request/free hooks Add a new internal mechanism to gpiolib to support low power operations by letting gpio_chip instances see when their GPIOs are in use. When no GPIOs are active, chips may be able to enter lower powered runtime states by disabling clocks and/or power domains. Signed-off-by: David Brownell Cc: "Magnus Damm" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/gpio.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 04cb1d175df1..81797ec9ab29 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -35,6 +35,10 @@ struct module; * @label: for diagnostics * @dev: optional device providing the GPIOs * @owner: helps prevent removal of modules exporting active GPIOs + * @request: optional hook for chip-specific activation, such as + * enabling module power and clock; may sleep + * @free: optional hook for chip-specific deactivation, such as + * disabling module power and clock; may sleep * @direction_input: configures signal "offset" as input, or returns error * @get: returns value for signal "offset"; for output signals this * returns either the value actually sensed, or zero @@ -67,6 +71,11 @@ struct gpio_chip { struct device *dev; struct module *owner; + int (*request)(struct gpio_chip *chip, + unsigned offset); + void (*free)(struct gpio_chip *chip, + unsigned offset); + int (*direction_input)(struct gpio_chip *chip, unsigned offset); int (*get)(struct gpio_chip *chip, -- cgit v1.2.1 From 3a568051f3ae23d1a570a3d58eacde55279c632e Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 15 Oct 2008 22:03:33 -0700 Subject: neofb: remove open_lock mutex Remove mutex from the fb_open/fb_release functions as these operations are mutexed at fb layer. Signed-off-by: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/video/neomagic.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/video/neomagic.h b/include/video/neomagic.h index 38910da0ae59..08b663782956 100644 --- a/include/video/neomagic.h +++ b/include/video/neomagic.h @@ -123,7 +123,6 @@ typedef volatile struct { struct neofb_par { struct vgastate state; - struct mutex open_lock; unsigned int ref_count; unsigned char MiscOutReg; /* Misc */ -- cgit v1.2.1 From a6c0c37db654444dfce91cd75ad8a56bb15a0d25 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 15 Oct 2008 22:03:44 -0700 Subject: radeonfb: misc cleanup of engine and dst cache handling Fix a couple of incomplete tests of the chip families in the engine init/reset code and proper initialization of the destination cache mode. The result should better match what the latest X radeon driver does. Signed-off-by: Benjamin Herrenschmidt Acked-by: David S. Miller Cc: Krzysztof Halasa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/video/radeon.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/video/radeon.h b/include/video/radeon.h index 099ffa5e5bee..1cd09cc5b169 100644 --- a/include/video/radeon.h +++ b/include/video/radeon.h @@ -386,7 +386,7 @@ #define SC_BOTTOM_RIGHT 0x16F0 #define SRC_SC_BOTTOM_RIGHT 0x16F4 #define RB2D_DSTCACHE_MODE 0x3428 -#define RB2D_DSTCACHE_CTLSTAT 0x342C +#define RB2D_DSTCACHE_CTLSTAT_broken 0x342C /* do not use */ #define LVDS_GEN_CNTL 0x02d0 #define LVDS_PLL_CNTL 0x02d4 #define FP2_GEN_CNTL 0x0288 @@ -532,6 +532,9 @@ #define RB2D_DC_FLUSH_ALL (RB2D_DC_FLUSH_2D | RB2D_DC_FREE_2D) #define RB2D_DC_BUSY (1 << 31) +/* DSTCACHE_MODE bits constants */ +#define RB2D_DC_AUTOFLUSH_ENABLE (1 << 8) +#define RB2D_DC_DC_DISABLE_IGNORE_PE (1 << 17) /* CRTC_GEN_CNTL bit constants */ #define CRTC_DBL_SCAN_EN 0x00000001 -- cgit v1.2.1 From b1ee26bab14886350ba12a5c10cbc0696ac679bf Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 15 Oct 2008 22:03:46 -0700 Subject: radeonfb: accelerate imageblit and other improvements Implement support for HW color expansion of 1bpp images, along with some improvements to the FIFO handling and other accel operations. The offset fixup code is now unnecessary as the fbcon core will call our set_par upon switch back from KD_GRAPHICS before anything else happens. I removed it as it would slow down accel operations. The fifo wait has been improved to avoid hitting the HW register as often, and the various accel ops are now performing better caching of register values. Overall, this improve accel performances. The imageblit acceleration does result in a small overall regression in performances on some machines (on the order of 5% on some x86), probably becaus the SW path provides a better bus utilisation, but I decided to ingnore that as the performances is still very good, and on the other hand, some machines such as some sparc64 get a 3 fold performance improvement. Signed-off-by: Benjamin Herrenschmidt Acked-by: David S. Miller Cc: Krzysztof Halasa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/video/radeon.h | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/video/radeon.h b/include/video/radeon.h index 1cd09cc5b169..d5dcaf154ba4 100644 --- a/include/video/radeon.h +++ b/include/video/radeon.h @@ -525,6 +525,9 @@ #define CRTC_DISPLAY_DIS (1 << 10) #define CRTC_CRT_ON (1 << 15) +/* DSTCACHE_MODE bits constants */ +#define RB2D_DC_AUTOFLUSH_ENABLE (1 << 8) +#define RB2D_DC_DC_DISABLE_IGNORE_PE (1 << 17) /* DSTCACHE_CTLSTAT bit constants */ #define RB2D_DC_FLUSH_2D (1 << 0) @@ -866,15 +869,10 @@ #define GMC_DST_16BPP_YVYU422 0x00000c00 #define GMC_DST_32BPP_AYUV444 0x00000e00 #define GMC_DST_16BPP_ARGB4444 0x00000f00 -#define GMC_SRC_MONO 0x00000000 -#define GMC_SRC_MONO_LBKGD 0x00001000 -#define GMC_SRC_DSTCOLOR 0x00003000 #define GMC_BYTE_ORDER_MSB_TO_LSB 0x00000000 #define GMC_BYTE_ORDER_LSB_TO_MSB 0x00004000 #define GMC_DP_CONVERSION_TEMP_9300 0x00008000 #define GMC_DP_CONVERSION_TEMP_6500 0x00000000 -#define GMC_DP_SRC_RECT 0x02000000 -#define GMC_DP_SRC_HOST 0x03000000 #define GMC_DP_SRC_HOST_BYTEALIGN 0x04000000 #define GMC_3D_FCN_EN_CLR 0x00000000 #define GMC_3D_FCN_EN_SET 0x08000000 @@ -885,6 +883,9 @@ #define GMC_WRITE_MASK_LEAVE 0x00000000 #define GMC_WRITE_MASK_SET 0x40000000 #define GMC_CLR_CMP_CNTL_DIS (1 << 28) +#define GMC_SRC_DATATYPE_MASK (3 << 12) +#define GMC_SRC_DATATYPE_MONO_FG_BG (0 << 12) +#define GMC_SRC_DATATYPE_MONO_FG_LA (1 << 12) #define GMC_SRC_DATATYPE_COLOR (3 << 12) #define ROP3_S 0x00cc0000 #define ROP3_SRCCOPY 0x00cc0000 @@ -893,6 +894,7 @@ #define DP_SRC_SOURCE_MASK (7 << 24) #define GMC_BRUSH_NONE (15 << 4) #define DP_SRC_SOURCE_MEMORY (2 << 24) +#define DP_SRC_SOURCE_HOST_DATA (3 << 24) #define GMC_BRUSH_SOLIDCOLOR 0x000000d0 /* DP_MIX bit constants */ @@ -978,6 +980,12 @@ #define DISP_PWR_MAN_TV_ENABLE_RST (1 << 25) #define DISP_PWR_MAN_AUTO_PWRUP_EN (1 << 26) +/* RBBM_GUICNTL constants */ +#define RBBM_GUICNTL_HOST_DATA_SWAP_NONE (0 << 0) +#define RBBM_GUICNTL_HOST_DATA_SWAP_16BIT (1 << 0) +#define RBBM_GUICNTL_HOST_DATA_SWAP_32BIT (2 << 0) +#define RBBM_GUICNTL_HOST_DATA_SWAP_HDW (3 << 0) + /* masks */ #define CONFIG_MEMSIZE_MASK 0x1f000000 -- cgit v1.2.1 From 0b178883b36e6f522e4a7019bf5a147daf521a01 Mon Sep 17 00:00:00 2001 From: Kristoffer Ericson Date: Wed, 15 Oct 2008 22:03:51 -0700 Subject: fbdev: allow more chip revisions in Epson s1d13... video driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Epson s1d13xxx hardware is common in many handhelds, but our driver is currently locked to a single chip revision. This patch adds an array of known to work revisions (which can be extended). [akpm@linux-foundation.org: cleanups] Signed-off-by: Kristoffer Ericson Acked-by: Thibaut Varène Cc: Geert Uytterhoeven Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/video/s1d13xxxfb.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/video/s1d13xxxfb.h b/include/video/s1d13xxxfb.h index c99d261df8f7..fe41b8407946 100644 --- a/include/video/s1d13xxxfb.h +++ b/include/video/s1d13xxxfb.h @@ -14,7 +14,8 @@ #define S1D13XXXFB_H #define S1D_PALETTE_SIZE 256 -#define S1D_CHIP_REV 7 /* expected chip revision number for s1d13806 */ +#define S1D13506_CHIP_REV 4 /* expected chip revision number for s1d13506 */ +#define S1D13806_CHIP_REV 7 /* expected chip revision number for s1d13806 */ #define S1D_FBID "S1D13806" #define S1D_DEVICENAME "s1d13806fb" -- cgit v1.2.1 From e3a1938805d2e81b27d3d348788644f3bad004f2 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Wed, 15 Oct 2008 22:03:52 -0700 Subject: matroxfb: support G200eV chip Support the Matrox G200eV chip, based on timings that I found in the X.org matrox driver. Signed-off-by: Darrick J. Wong Acked-by: Krzysztof Helt Cc: Petr Vandrovec Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 1176f1f177e2..8edddc240e4f 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -587,6 +587,7 @@ #define PCI_DEVICE_ID_MATROX_G200_PCI 0x0520 #define PCI_DEVICE_ID_MATROX_G200_AGP 0x0521 #define PCI_DEVICE_ID_MATROX_G400 0x0525 +#define PCI_DEVICE_ID_MATROX_G200EV_PCI 0x0530 #define PCI_DEVICE_ID_MATROX_G550 0x2527 #define PCI_DEVICE_ID_MATROX_VIA 0x4536 -- cgit v1.2.1 From b53cde3557b8f97e6a635782875d442551a89bf1 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Wed, 15 Oct 2008 22:03:55 -0700 Subject: fbdev: add new TMIO framebuffer driver Add driver for TMIO framebuffer cells as found e.g. in Toshiba TC6393XB chips. Signed-off-by: Dmitry Baryshkov Cc: Ian Molton Acked-by: Samuel Ortiz Acked-by: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mfd/tmio.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index ec612e66391c..516d955ab8a1 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -1,6 +1,8 @@ #ifndef MFD_TMIO_H #define MFD_TMIO_H +#include + #define tmio_ioread8(addr) readb(addr) #define tmio_ioread16(addr) readw(addr) #define tmio_ioread16_rep(r, b, l) readsw(r, b, l) @@ -25,4 +27,21 @@ struct tmio_nand_data { unsigned int num_partitions; }; +#define FBIO_TMIO_ACC_WRITE 0x7C639300 +#define FBIO_TMIO_ACC_SYNC 0x7C639301 + +struct tmio_fb_data { + int (*lcd_set_power)(struct platform_device *fb_dev, + bool on); + int (*lcd_mode)(struct platform_device *fb_dev, + const struct fb_videomode *mode); + int num_modes; + struct fb_videomode *modes; + + /* in mm: size of screen */ + int height; + int width; +}; + + #endif -- cgit v1.2.1 From b563cf59c4d67da7d671788a9848416bfa4180ab Mon Sep 17 00:00:00 2001 From: Rene Herman Date: Wed, 15 Oct 2008 22:03:58 -0700 Subject: pnp: make the resource type an unsigned long PnP encodes the resource type directly as its struct resource->flags value which is an unsigned long. Make it so... Signed-off-by: Rene Herman Cc: "H. Peter Anvin" Acked-by: Bjorn Helgaas Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pnp.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pnp.h b/include/linux/pnp.h index be764e514e35..53b70fd1d9a5 100644 --- a/include/linux/pnp.h +++ b/include/linux/pnp.h @@ -22,9 +22,11 @@ struct pnp_dev; * Resource Management */ #ifdef CONFIG_PNP -struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int); +struct resource *pnp_get_resource(struct pnp_dev *dev, unsigned long type, + unsigned int num); #else -static inline struct resource *pnp_get_resource(struct pnp_dev *dev, unsigned int type, unsigned int num) +static inline struct resource *pnp_get_resource(struct pnp_dev *dev, + unsigned long type, unsigned int num) { return NULL; } -- cgit v1.2.1 From 60836eb63b941f407dc2a609f3f0f34fd74ef6c3 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 15 Oct 2008 22:04:00 -0700 Subject: telephony: remove CVS keywords Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/telephony.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/telephony.h b/include/linux/telephony.h index 0d0cf2a1e7bc..5b2b6261f193 100644 --- a/include/linux/telephony.h +++ b/include/linux/telephony.h @@ -28,10 +28,6 @@ * ON AN "AS IS" BASIS, AND QUICKNET TECHNOLOGIES, INC. HAS NO OBLIGATION * TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. * - * Version: $Revision: 4.2 $ - * - * $Id: telephony.h,v 4.2 2001/08/06 07:09:43 craigs Exp $ - * *****************************************************************************/ #ifndef TELEPHONY_H -- cgit v1.2.1 From b73c29f6b0ddbcf07b43c5c5e6354e5839b5e68d Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 15 Oct 2008 22:04:13 -0700 Subject: quota: remove CVS keywords Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk Acked-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/quota.h | 2 -- include/linux/quotaops.h | 3 --- 2 files changed, 5 deletions(-) (limited to 'include') diff --git a/include/linux/quota.h b/include/linux/quota.h index 376a05048bc5..40401b554484 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -28,8 +28,6 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * - * Version: $Id: quota.h,v 2.0 1996/11/17 16:48:14 mvw Exp mvw $ */ #ifndef _LINUX_QUOTA_ diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h index ca6b9b5c8d52..a558a4c1d35a 100644 --- a/include/linux/quotaops.h +++ b/include/linux/quotaops.h @@ -3,9 +3,6 @@ * macros expand to the right source-code. * * Author: Marco van Wieringen - * - * Version: $Id: quotaops.h,v 1.2 1998/01/15 16:22:26 ecd Exp $ - * */ #ifndef _LINUX_QUOTAOPS_ #define _LINUX_QUOTAOPS_ -- cgit v1.2.1 From f221e726bf4e082a05dcd573379ac859bfba7126 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Wed, 15 Oct 2008 22:04:23 -0700 Subject: sysctl: simplify ->strategy name and nlen parameters passed to ->strategy hook are unused, remove them. In general ->strategy hook should know what it's doing, and don't do something tricky for which, say, pointer to original userspace array may be needed (name). Signed-off-by: Alexey Dobriyan Acked-by: David S. Miller [ networking bits ] Cc: Ralf Baechle Cc: David Howells Cc: Matt Mackall Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sysctl.h | 2 +- include/net/ip.h | 2 +- include/net/ndisc.h | 5 ++--- 3 files changed, 4 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index d0437f36921f..39d471d1163b 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -972,7 +972,7 @@ extern int sysctl_perm(struct ctl_table_root *root, typedef struct ctl_table ctl_table; -typedef int ctl_handler (struct ctl_table *table, int __user *name, int nlen, +typedef int ctl_handler (struct ctl_table *table, void __user *oldval, size_t __user *oldlenp, void __user *newval, size_t newlen); diff --git a/include/net/ip.h b/include/net/ip.h index 1cbccaf0de3f..bc026ecb513f 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -396,7 +396,7 @@ extern void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport, int ipv4_doint_and_flush(ctl_table *ctl, int write, struct file* filp, void __user *buffer, size_t *lenp, loff_t *ppos); -int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen, +int ipv4_doint_and_flush_strategy(ctl_table *table, void __user *oldval, size_t __user *oldlenp, void __user *newval, size_t newlen); #ifdef CONFIG_PROC_FS diff --git a/include/net/ndisc.h b/include/net/ndisc.h index a01b7c4dc763..11dd0137c6a5 100644 --- a/include/net/ndisc.h +++ b/include/net/ndisc.h @@ -129,9 +129,8 @@ extern int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, void __user *buffer, size_t *lenp, loff_t *ppos); -int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name, - int nlen, void __user *oldval, - size_t __user *oldlenp, +int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, + void __user *oldval, size_t __user *oldlenp, void __user *newval, size_t newlen); #endif -- cgit v1.2.1 From 25cbe53ef1cb828ae012f3955a5aa18117114439 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 15 Oct 2008 22:04:25 -0700 Subject: pid_ns: kill the now unused task_child_reaper() task_child_reaper() has no callers anymore, kill it. Signed-off-by: Oleg Nesterov Acked-by: Serge Hallyn Acked-by: Pavel Emelyanov Acked-by: Sukadev Bhattiprolu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pid_namespace.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include') diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 1af82c4e17d4..d82fe825d62f 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -84,12 +84,6 @@ static inline struct pid_namespace *task_active_pid_ns(struct task_struct *tsk) return tsk->nsproxy->pid_ns; } -static inline struct task_struct *task_child_reaper(struct task_struct *tsk) -{ - BUG_ON(tsk != current); - return tsk->nsproxy->pid_ns->child_reaper; -} - void pidhash_init(void); void pidmap_init(void); -- cgit v1.2.1 From 612de10db06c0704a66bbe7fd13990cb1c2cb958 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 15 Oct 2008 22:04:33 -0700 Subject: parport: remove CVS keywords Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/parport.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/parport.h b/include/linux/parport.h index 6a0d7cdb5774..e1f83c5065c5 100644 --- a/include/linux/parport.h +++ b/include/linux/parport.h @@ -1,5 +1,3 @@ -/* $Id: parport.h,v 1.1 1998/05/17 10:57:52 andrea Exp andrea $ */ - /* * Any part of this program may be used in documents licensed under * the GNU Free Documentation License, Version 1.1 or any later version -- cgit v1.2.1 From ebf3f09c634906d371f2bfd71b41c7e0c52efe7e Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Wed, 15 Oct 2008 22:05:12 -0700 Subject: Configure out AIO support This patchs adds the CONFIG_AIO option which allows to remove support for asynchronous I/O operations, that are not necessarly used by applications, particularly on embedded devices. As this is a size-reduction option, it depends on CONFIG_EMBEDDED. It allows to save ~7 kilobytes of kernel code/data: text data bss dec hex filename 1115067 119180 217088 1451335 162547 vmlinux 1108025 119048 217088 1444161 160941 vmlinux.new -7042 -132 0 -7174 -1C06 +/- This patch has been originally written by Matt Mackall , and is part of the Linux Tiny project. [randy.dunlap@oracle.com: build fix] Signed-off-by: Thomas Petazzoni Cc: Benjamin LaHaise Cc: Zach Brown Signed-off-by: Matt Mackall Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/aio.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/aio.h b/include/linux/aio.h index 09b276c35227..f6b8cf99b596 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -204,12 +204,21 @@ struct kioctx { /* prototypes */ extern unsigned aio_max_size; +#ifdef CONFIG_AIO extern ssize_t wait_on_sync_kiocb(struct kiocb *iocb); extern int aio_put_req(struct kiocb *iocb); extern void kick_iocb(struct kiocb *iocb); extern int aio_complete(struct kiocb *iocb, long res, long res2); struct mm_struct; extern void exit_aio(struct mm_struct *mm); +#else +static inline ssize_t wait_on_sync_kiocb(struct kiocb *iocb) { return 0; } +static inline int aio_put_req(struct kiocb *iocb) { return 0; } +static inline void kick_iocb(struct kiocb *iocb) { } +static inline int aio_complete(struct kiocb *iocb, long res, long res2) { return 0; } +struct mm_struct; +static inline void exit_aio(struct mm_struct *mm) { } +#endif /* CONFIG_AIO */ #define io_wait_to_kiocb(wait) container_of(wait, struct kiocb, ki_wait) -- cgit v1.2.1 From c9f66169f1c696f9489503d7de92daff135c1efd Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 15 Oct 2008 22:05:15 -0700 Subject: resource: add resource_type() and IORESOURCE_TYPE_BITS Add resource_type() and IORESOURCE_TYPE_BITS. They make it easier to add more resource types without having to rewrite tons of code. Signed-off-by: Magnus Damm Cc: Ben Dooks Cc: Jean Delvare Cc: Paul Mundt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ioport.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ioport.h b/include/linux/ioport.h index ee9bcc6f32b6..0dde77272d7a 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -34,7 +34,8 @@ struct resource_list { */ #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ -#define IORESOURCE_IO 0x00000100 /* Resource type */ +#define IORESOURCE_TYPE_BITS 0x00000f00 /* Resource type */ +#define IORESOURCE_IO 0x00000100 #define IORESOURCE_MEM 0x00000200 #define IORESOURCE_IRQ 0x00000400 #define IORESOURCE_DMA 0x00000800 @@ -126,6 +127,10 @@ static inline resource_size_t resource_size(struct resource *res) { return res->end - res->start + 1; } +static inline unsigned long resource_type(struct resource *res) +{ + return res->flags & IORESOURCE_TYPE_BITS; +} /* Convenience shorthand with allocation */ #define request_region(start,n,name) __request_region(&ioport_resource, (start), (n), (name)) -- cgit v1.2.1 From cb76d5a4c4a74f4ff0bd4db5069f02fe4679a5ed Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 15 Oct 2008 16:50:59 +0100 Subject: FRV: Switch unaligned access to the packed-struct implementation Switch unaligned access to the packed-struct implementation for BE accesses as this reduces the size of the kernel a little. LE still uses the byte shift. Signed-off-by: Harvey Harrison Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- include/asm-frv/unaligned.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-frv/unaligned.h b/include/asm-frv/unaligned.h index 839a2fbffa0f..6c61c05b2e0c 100644 --- a/include/asm-frv/unaligned.h +++ b/include/asm-frv/unaligned.h @@ -13,7 +13,7 @@ #define _ASM_UNALIGNED_H #include -#include +#include #include #define get_unaligned __get_unaligned_be -- cgit v1.2.1 From 3e624fc72fba09b6f999a9fbb87b64efccd38036 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 16 Oct 2008 20:00:24 -0400 Subject: ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback The multiblock allocator needs to be able to release blocks (and issue a blkdev discard request) when the transaction which freed those blocks is committed. Previously this was done via a polling mechanism when blocks are allocated or freed. A much better way of doing things is to create a jbd2 callback function and attaching the list of blocks to be freed directly to the transaction structure. Signed-off-by: "Theodore Ts'o" --- include/linux/jbd2.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 463d6f10b64f..c7d106ef22e2 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -641,6 +641,11 @@ struct transaction_s */ int t_handle_count; + /* + * For use by the filesystem to store fs-specific data + * structures associated with the transaction + */ + struct list_head t_private_list; }; struct transaction_run_stats_s { @@ -935,6 +940,10 @@ struct journal_s pid_t j_last_sync_writer; + /* This function is called when a transaction is closed */ + void (*j_commit_callback)(journal_t *, + transaction_t *); + /* * Journal statistics */ -- cgit v1.2.1 From 54514a70adefe356afe854e2d3912d46668068e6 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 23 Sep 2008 22:15:57 -0700 Subject: softirq: Add support for triggering softirq work on softirqs. This is basically a genericization of Jens Axboe's block layer remote softirq changes. Signed-off-by: David S. Miller Signed-off-by: Jens Axboe --- include/linux/interrupt.h | 21 +++++++++++++++++++++ include/linux/smp.h | 4 +++- 2 files changed, 24 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 54b3623434ec..35a61dc60d51 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -11,6 +11,8 @@ #include #include #include +#include +#include #include #include #include @@ -273,6 +275,25 @@ extern void softirq_init(void); extern void raise_softirq_irqoff(unsigned int nr); extern void raise_softirq(unsigned int nr); +/* This is the worklist that queues up per-cpu softirq work. + * + * send_remote_sendirq() adds work to these lists, and + * the softirq handler itself dequeues from them. The queues + * are protected by disabling local cpu interrupts and they must + * only be accessed by the local cpu that they are for. + */ +DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list); + +/* Try to send a softirq to a remote cpu. If this cannot be done, the + * work will be queued to the local cpu. + */ +extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq); + +/* Like send_remote_softirq(), but the caller must disable local cpu interrupts + * and compute the current cpu, passed in as 'this_cpu'. + */ +extern void __send_remote_softirq(struct call_single_data *cp, int cpu, + int this_cpu, int softirq); /* Tasklets --- multithreaded analogue of BHs. diff --git a/include/linux/smp.h b/include/linux/smp.h index 66484d4a8459..2e4d58b26c06 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -7,6 +7,7 @@ */ #include +#include #include #include @@ -16,7 +17,8 @@ struct call_single_data { struct list_head list; void (*func) (void *info); void *info; - unsigned int flags; + u16 flags; + u16 priv; }; #ifdef CONFIG_SMP -- cgit v1.2.1 From 8677142710516d986d932d6f1fba7be8382c1fec Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 13 Oct 2008 14:19:05 +0200 Subject: block: fix nr_phys_segments miscalculation bug This fixes the bug reported by Nikanth Karthikesan : http://lkml.org/lkml/2008/10/2/203 The root cause of the bug is that blk_phys_contig_segment miscalculates q->max_segment_size. blk_phys_contig_segment checks: req->biotail->bi_size + next_req->bio->bi_size > q->max_segment_size But blk_recalc_rq_segments might expect that req->biotail and the previous bio in the req are supposed be merged into one segment. blk_recalc_rq_segments might also expect that next_req->bio and the next bio in the next_req are supposed be merged into one segment. In such case, we merge two requests that can't be merged here. Later, blk_rq_map_sg gives more segments than it should. We need to keep track of segment size in blk_recalc_rq_segments and use it to see if two requests can be merged. This patch implements it in the similar way that we used to do for hw merging (virtual merging). Signed-off-by: FUJITA Tomonori Signed-off-by: Jens Axboe --- include/linux/bio.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/bio.h b/include/linux/bio.h index ff5b4cf9e2da..dc3cec386a99 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -79,6 +79,13 @@ struct bio { unsigned int bi_size; /* residual I/O count */ + /* + * To keep track of the max segment size, we account for the + * sizes of the first and last mergeable segments in this bio. + */ + unsigned int bi_seg_front_size; + unsigned int bi_seg_back_size; + unsigned int bi_max_vecs; /* max bvl_vecs we can hold */ unsigned int bi_comp_cpu; /* completion CPU */ -- cgit v1.2.1 From 756f8243188e013bd067811cdc0cc60760abfdf9 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Thu, 16 Oct 2008 08:23:21 +0200 Subject: blktrace: add support for driver data This patch adds the new api call blk_add_driver_data() to blktrace. It allows to trace device driver-specific binary data. Signed-off-by: Stefan Raspl Signed-off-by: Martin Peschke Signed-off-by: Jens Axboe --- include/linux/blktrace_api.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'include') diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index 3a31eb506164..bdf505d33e77 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -24,6 +24,7 @@ enum blktrace_cat { BLK_TC_AHEAD = 1 << 11, /* readahead */ BLK_TC_META = 1 << 12, /* metadata */ BLK_TC_DISCARD = 1 << 13, /* discard requests */ + BLK_TC_DRV_DATA = 1 << 14, /* binary per-driver data */ BLK_TC_END = 1 << 15, /* only 16-bits, reminder */ }; @@ -51,6 +52,7 @@ enum blktrace_act { __BLK_TA_BOUNCE, /* bio was bounced */ __BLK_TA_REMAP, /* bio was remapped */ __BLK_TA_ABORT, /* request aborted */ + __BLK_TA_DRV_DATA, /* driver-specific binary data */ }; /* @@ -82,6 +84,7 @@ enum blktrace_notify { #define BLK_TA_BOUNCE (__BLK_TA_BOUNCE) #define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE)) #define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE)) +#define BLK_TA_DRV_DATA (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA)) #define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY)) #define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY)) @@ -317,6 +320,34 @@ static inline void blk_add_trace_remap(struct request_queue *q, struct bio *bio, __blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r); } +/** + * blk_add_driver_data - Add binary message with driver-specific data + * @q: queue the io is for + * @rq: io request + * @data: driver-specific data + * @len: length of driver-specific data + * + * Description: + * Some drivers might want to write driver-specific data per request. + * + **/ +static inline void blk_add_driver_data(struct request_queue *q, + struct request *rq, + void *data, size_t len) +{ + struct blk_trace *bt = q->blk_trace; + + if (likely(!bt)) + return; + + if (blk_pc_request(rq)) + __blk_add_trace(bt, 0, rq->data_len, 0, BLK_TA_DRV_DATA, + rq->errors, len, data); + else + __blk_add_trace(bt, rq->hard_sector, rq->hard_nr_sectors << 9, + 0, BLK_TA_DRV_DATA, rq->errors, len, data); +} + extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev, char __user *arg); extern int blk_trace_startstop(struct request_queue *q, int start); @@ -330,6 +361,7 @@ extern int blk_trace_remove(struct request_queue *q); #define blk_add_trace_generic(q, rq, rw, what) do { } while (0) #define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0) #define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0) +#define blk_add_driver_data(q, rq, data, len) do {} while (0) #define do_blk_trace_setup(q, name, dev, buts) (-ENOTTY) #define blk_trace_setup(q, name, dev, arg) (-ENOTTY) #define blk_trace_startstop(q, start) (-ENOTTY) -- cgit v1.2.1 From f73e2d13a16cc88c4faa4729967f92bfeec8a142 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 17 Oct 2008 14:03:08 +0200 Subject: block: remove __generic_unplug_device() from exports The only out-of-core user is IDE, and that should be using blk_start_queueing() instead. Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a92d9e4ea96e..8eed8b15f992 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -856,7 +856,6 @@ extern void blk_ordered_complete_seq(struct request_queue *, unsigned, int); extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *); extern void blk_dump_rq_flags(struct request *, char *); extern void generic_unplug_device(struct request_queue *); -extern void __generic_unplug_device(struct request_queue *); extern long nr_blockdev_pages(void); int blk_get_queue(struct request_queue *); -- cgit v1.2.1 From 8b81ef589ad1483dd977ef47fe00d4ce4d91a0ab Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 18:45:25 -0500 Subject: 9p: consolidate transport structure Right now there is a transport module structure which provides per-transport type functions and data and a transport structure which contains per-instance public data as well as function pointers to instance specific functions. This patch moves public transport visible instance data to the client structure (which in some cases had duplicate data) and consolidates the functions into the transport module structure. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 19 +++++++++++++++- include/net/9p/transport.h | 55 ++++++---------------------------------------- 2 files changed, 25 insertions(+), 49 deletions(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index c936dd14de41..c35fb548e7cf 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -26,6 +26,22 @@ #ifndef NET_9P_CLIENT_H #define NET_9P_CLIENT_H +/** + * enum p9_trans_status - different states of underlying transports + * @Connected: transport is connected and healthy + * @Disconnected: transport has been disconnected + * @Hung: transport is connected by wedged + * + * This enumeration details the various states a transport + * instatiation can be in. + */ + +enum p9_trans_status { + Connected, + Disconnected, + Hung, +}; + /** * struct p9_client - per client instance state * @lock: protect @fidlist @@ -48,7 +64,8 @@ struct p9_client { int msize; unsigned char dotu; struct p9_trans_module *trans_mod; - struct p9_trans *trans; + enum p9_trans_status status; + void *trans; struct p9_conn *conn; struct p9_idpool *fidpool; diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h index 3ca737120a90..3e0f2f6beba2 100644 --- a/include/net/9p/transport.h +++ b/include/net/9p/transport.h @@ -26,52 +26,6 @@ #ifndef NET_9P_TRANSPORT_H #define NET_9P_TRANSPORT_H -#include - -/** - * enum p9_trans_status - different states of underlying transports - * @Connected: transport is connected and healthy - * @Disconnected: transport has been disconnected - * @Hung: transport is connected by wedged - * - * This enumeration details the various states a transport - * instatiation can be in. - */ - -enum p9_trans_status { - Connected, - Disconnected, - Hung, -}; - -/** - * struct p9_trans - per-transport state and API - * @status: transport &p9_trans_status - * @msize: negotiated maximum packet size (duplicate from client) - * @extended: negotiated protocol extensions (duplicate from client) - * @priv: transport private data - * @close: member function to disconnect and close the transport - * @rpc: member function to issue a request to the transport - * - * This is the basic API for a transport instance. It is used as - * a handle by the client to issue requests. This interface is currently - * in flux during reorganization. - * - * Bugs: there is lots of duplicated data here and its not clear that - * the member functions need to be per-instance versus per transport - * module. - */ - -struct p9_trans { - enum p9_trans_status status; - int msize; - unsigned char extended; - void *priv; - void (*close) (struct p9_trans *); - int (*rpc) (struct p9_trans *t, struct p9_fcall *tc, - struct p9_fcall **rc); -}; - /** * struct p9_trans_module - transport module interface * @list: used to maintain a list of currently available transports @@ -79,12 +33,14 @@ struct p9_trans { * @maxsize: transport provided maximum packet size * @def: set if this transport should be considered the default * @create: member function to create a new connection on this transport + * @close: member function to disconnect and close the transport + * @rpc: member function to issue a request to the transport * * This is the basic API for a transport module which is registered by the * transport module with the 9P core network module and used by the client * to instantiate a new connection on a transport. * - * Bugs: the transport module list isn't protected. + * BUGS: the transport module list isn't protected. */ struct p9_trans_module { @@ -92,8 +48,11 @@ struct p9_trans_module { char *name; /* name of transport */ int maxsize; /* max message size of transport */ int def; /* this transport should be default */ - struct p9_trans * (*create)(const char *, char *, int, unsigned char); struct module *owner; + int (*create)(struct p9_client *, const char *, char *); + void (*close) (struct p9_client *); + int (*rpc) (struct p9_client *t, struct p9_fcall *tc, + struct p9_fcall **rc); }; void v9fs_register_trans(struct p9_trans_module *m); -- cgit v1.2.1 From fea511a644fb0fb938309c6ab286725ac31b87e2 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 18:45:23 -0500 Subject: 9p: move request management to client code The virtio transport uses a simplified request management system that I want to use for all transports. This patch adapts and moves the exisiting code for managing requests to the client common code. Later patches will apply these mechanisms to the other transports. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 77 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index c35fb548e7cf..140cf1d58452 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -26,6 +26,9 @@ #ifndef NET_9P_CLIENT_H #define NET_9P_CLIENT_H +/* Number of requests per row */ +#define P9_ROW_MAXTAG 255 + /** * enum p9_trans_status - different states of underlying transports * @Connected: transport is connected and healthy @@ -42,6 +45,62 @@ enum p9_trans_status { Hung, }; +/** + * enum p9_req_status_t - virtio request status + * @REQ_STATUS_IDLE: request slot unused + * @REQ_STATUS_ALLOC: request has been allocated but not sent + * @REQ_STATUS_SENT: request sent to server + * @REQ_STATUS_FLSH: a flush has been sent for this request + * @REQ_STATUS_RCVD: response received from server + * @REQ_STATUS_FLSHD: request has been flushed + * @REQ_STATUS_ERR: request encountered an error on the client side + * + * The @REQ_STATUS_IDLE state is used to mark a request slot as unused + * but use is actually tracked by the idpool structure which handles tag + * id allocation. + * + */ + +enum p9_req_status_t { + REQ_STATUS_IDLE, + REQ_STATUS_ALLOC, + REQ_STATUS_SENT, + REQ_STATUS_FLSH, + REQ_STATUS_RCVD, + REQ_STATUS_FLSHD, + REQ_STATUS_ERROR, +}; + +/** + * struct p9_req_t - request slots + * @status: status of this request slot + * @t_err: transport error + * @wq: wait_queue for the client to block on for this request + * @tc: the request fcall structure + * @rc: the response fcall structure + * @aux: transport specific data (provided for trans_fd migration) + * + * Transport use an array to track outstanding requests + * instead of a list. While this may incurr overhead during initial + * allocation or expansion, it makes request lookup much easier as the + * tag id is a index into an array. (We use tag+1 so that we can accomodate + * the -1 tag for the T_VERSION request). + * This also has the nice effect of only having to allocate wait_queues + * once, instead of constantly allocating and freeing them. Its possible + * other resources could benefit from this scheme as well. + * + */ + +struct p9_req_t { + int status; + int t_err; + wait_queue_head_t *wq; + struct p9_fcall *tc; + struct p9_fcall *rc; + u16 flush_tag; + void *aux; +}; + /** * struct p9_client - per client instance state * @lock: protect @fidlist @@ -52,9 +111,20 @@ enum p9_trans_status { * @conn: connection state information used by trans_fd * @fidpool: fid handle accounting for session * @fidlist: List of active fid handles + * @tagpool - transaction id accounting for session + * @reqs - 2D array of requests + * @max_tag - current maximum tag id allocated * * The client structure is used to keep track of various per-client * state that has been instantiated. + * In order to minimize per-transaction overhead we use a + * simple array to lookup requests instead of a hash table + * or linked list. In order to support larger number of + * transactions, we make this a 2D array, allocating new rows + * when we need to grow the total number of the transactions. + * + * Each row is 256 requests and we'll support up to 256 rows for + * a total of 64k concurrent requests per session. * * Bugs: duplicated data and potentially unnecessary elements. */ @@ -70,6 +140,10 @@ struct p9_client { struct p9_idpool *fidpool; struct list_head fidlist; + + struct p9_idpool *tagpool; + struct p9_req_t *reqs[P9_ROW_MAXTAG]; + int max_tag; }; /** @@ -131,4 +205,7 @@ struct p9_stat *p9_client_stat(struct p9_fid *fid); int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset); +struct p9_req_t *p9_tag_alloc(struct p9_client *, u16); +struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); + #endif /* NET_9P_CLIENT_H */ -- cgit v1.2.1 From 673d62cdaac6ffbce980a349d3174b3929ceb9e5 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 18:45:22 -0500 Subject: 9p: apply common request code to trans_fd Apply the now common p9_req_t structure to the fd transport. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 140cf1d58452..4fecaabd17bd 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -49,11 +49,12 @@ enum p9_trans_status { * enum p9_req_status_t - virtio request status * @REQ_STATUS_IDLE: request slot unused * @REQ_STATUS_ALLOC: request has been allocated but not sent + * @REQ_STATUS_UNSENT: request waiting to be sent * @REQ_STATUS_SENT: request sent to server * @REQ_STATUS_FLSH: a flush has been sent for this request * @REQ_STATUS_RCVD: response received from server * @REQ_STATUS_FLSHD: request has been flushed - * @REQ_STATUS_ERR: request encountered an error on the client side + * @REQ_STATUS_ERROR: request encountered an error on the client side * * The @REQ_STATUS_IDLE state is used to mark a request slot as unused * but use is actually tracked by the idpool structure which handles tag @@ -64,6 +65,7 @@ enum p9_trans_status { enum p9_req_status_t { REQ_STATUS_IDLE, REQ_STATUS_ALLOC, + REQ_STATUS_UNSENT, REQ_STATUS_SENT, REQ_STATUS_FLSH, REQ_STATUS_RCVD, @@ -79,6 +81,8 @@ enum p9_req_status_t { * @tc: the request fcall structure * @rc: the response fcall structure * @aux: transport specific data (provided for trans_fd migration) + * @tag: tag on request (BUG: redundant) + * @req_list: link for higher level objects to chain requests * * Transport use an array to track outstanding requests * instead of a list. While this may incurr overhead during initial @@ -99,6 +103,9 @@ struct p9_req_t { struct p9_fcall *rc; u16 flush_tag; void *aux; + + int tag; + struct list_head req_list; }; /** @@ -207,5 +214,6 @@ struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset); struct p9_req_t *p9_tag_alloc(struct p9_client *, u16); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); +void p9_free_req(struct p9_client *, struct p9_req_t *); #endif /* NET_9P_CLIENT_H */ -- cgit v1.2.1 From 91b8534fa8f5e01f249b1bf8df0a2540053549ad Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 18:45:21 -0500 Subject: 9p: make rpc code common and rework flush code This code moves the rpc function to the common client base, reorganizes the flush code to be more simple and stable, and makes the necessary adjustments to the underlying transports to adapt to the new structure. This reduces the overall amount of code duplication between the transports and should make adding new transports more straightforward. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 3 +-- include/net/9p/transport.h | 8 ++++---- 2 files changed, 5 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 4fecaabd17bd..6a71d9067818 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -212,8 +212,7 @@ struct p9_stat *p9_client_stat(struct p9_fid *fid); int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset); -struct p9_req_t *p9_tag_alloc(struct p9_client *, u16); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); -void p9_free_req(struct p9_client *, struct p9_req_t *); +void p9_client_cb(struct p9_client *c, struct p9_req_t *req); #endif /* NET_9P_CLIENT_H */ diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h index 3e0f2f6beba2..6d5886efb102 100644 --- a/include/net/9p/transport.h +++ b/include/net/9p/transport.h @@ -33,8 +33,8 @@ * @maxsize: transport provided maximum packet size * @def: set if this transport should be considered the default * @create: member function to create a new connection on this transport - * @close: member function to disconnect and close the transport - * @rpc: member function to issue a request to the transport + * @request: member function to issue a request to the transport + * @cancel: member function to cancel a request (if it hasn't been sent) * * This is the basic API for a transport module which is registered by the * transport module with the 9P core network module and used by the client @@ -51,8 +51,8 @@ struct p9_trans_module { struct module *owner; int (*create)(struct p9_client *, const char *, char *); void (*close) (struct p9_client *); - int (*rpc) (struct p9_client *t, struct p9_fcall *tc, - struct p9_fcall **rc); + int (*request) (struct p9_client *, struct p9_req_t *req); + int (*cancel) (struct p9_client *, struct p9_req_t *req); }; void v9fs_register_trans(struct p9_trans_module *m); -- cgit v1.2.1 From 0fc9655ec67ec5d4dfd08e469e0e9f0a494bf5bc Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 20:36:17 -0500 Subject: 9p: consolidate read/write functions Currently there are two separate versions of read and write. One for dealing with user buffers and the other for dealing with kernel buffers. There is a tremendous amount of code duplication in the otherwise identical versions of these functions. This patch adds an additional user buffer parameter to read and write and conditionalizes handling of the buffer on whether the kernel buffer or the user buffer is populated. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 6a71d9067818..c70a0f0b448d 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -201,13 +201,11 @@ int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode, char *extension); int p9_client_clunk(struct p9_fid *fid); int p9_client_remove(struct p9_fid *fid); -int p9_client_read(struct p9_fid *fid, char *data, u64 offset, u32 count); +int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, + u64 offset, u32 count); int p9_client_readn(struct p9_fid *fid, char *data, u64 offset, u32 count); -int p9_client_write(struct p9_fid *fid, char *data, u64 offset, u32 count); -int p9_client_uread(struct p9_fid *fid, char __user *data, u64 offset, - u32 count); -int p9_client_uwrite(struct p9_fid *fid, const char __user *data, u64 offset, - u32 count); +int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, + u64 offset, u32 count); struct p9_stat *p9_client_stat(struct p9_fid *fid); int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset); -- cgit v1.2.1 From fbedadc16e5c888e4df9df3b1757de4993508d35 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 20:36:16 -0500 Subject: 9p: move readn meta-function from client to fs layer There are a couple of methods in the client code which aren't actually wire operations. To keep things organized cleaner, these operations are being moved to the fs layer. This patch moves the readn meta-function (which executes multiple wire reads until a buffer is full) to the fs layer. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index c70a0f0b448d..bb8b0ede132d 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -203,7 +203,6 @@ int p9_client_clunk(struct p9_fid *fid); int p9_client_remove(struct p9_fid *fid); int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count); -int p9_client_readn(struct p9_fid *fid, char *data, u64 offset, u32 count); int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, u64 offset, u32 count); struct p9_stat *p9_client_stat(struct p9_fid *fid); -- cgit v1.2.1 From 06b55b464ee5b305aca75cb7d9424b184bf07f68 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 20:36:15 -0500 Subject: 9p: move dirread to fs layer Currently reading a directory is implemented in the client code. This function is not actually a wire operation, but a meta operation which calls read operations and processes the results. This patch moves this functionality to the fs layer and calls component wire operations instead of constructing their packets. This provides a cleaner separation and will help when we reorganize the client functions and protocol processing methods. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index bb8b0ede132d..eeb7d922816e 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -163,8 +163,6 @@ struct p9_client { * @uid: the numeric uid of the local user who owns this handle * @aux: transport specific information (unused?) * @rdir_fpos: tracks offset of file position when reading directory contents - * @rdir_pos: (unused?) - * @rdir_fcall: holds response of last directory read request * @flist: per-client-instance fid tracking * @dlist: per-dentry fid tracking * @@ -181,8 +179,6 @@ struct p9_fid { void *aux; int rdir_fpos; - int rdir_pos; - struct p9_fcall *rdir_fcall; struct list_head flist; struct list_head dlist; /* list of all fids attached to a dentry */ }; @@ -207,7 +203,6 @@ int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, u64 offset, u32 count); struct p9_stat *p9_client_stat(struct p9_fid *fid); int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); -struct p9_stat *p9_client_dirread(struct p9_fid *fid, u64 offset); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); void p9_client_cb(struct p9_client *c, struct p9_req_t *req); -- cgit v1.2.1 From ace51c4dd2f968f427c4627023759ae7e3786cba Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 13 Oct 2008 20:40:27 -0500 Subject: 9p: add new protocol support code This adds a new protocol processing support code based on Anthony Liguori's 9p library code. This code performs protocol marshalling/unmarshalling using printf like strings to represent protocol elements. It is my intent to use them to replace the current functions in conv.c as well as the p9_create_* functions. This should make the client implementation much more clear, and also make it much easier to add new protocol extensions by limiting the number of places in which changes need to be made. Signed-off-by: Eric Van Hensbergen --- include/net/9p/9p.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index fb163e2e0de6..f9e25268b70f 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -509,6 +509,8 @@ struct p9_rwstat { * @size: prefixed length of the structure * @id: protocol operating identifier of type &p9_msg_t * @tag: transaction id of the request + * @offset: used by marshalling routines to track currentposition in buffer + * @capacity: used by marshalling routines to track total capacity * @sdata: payload * @params: per-operation parameters * @@ -523,7 +525,11 @@ struct p9_fcall { u32 size; u8 id; u16 tag; - void *sdata; + + size_t offset; + size_t capacity; + + uint8_t *sdata; union { struct p9_tversion tversion; -- cgit v1.2.1 From 51d71f9f7a639c8a39401de1ec5ce9b0b6476c99 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Thu, 16 Oct 2008 08:29:31 -0500 Subject: 9p: remove 9p fcall debug prints One of the current debug options allows users to get a verbose dump of fcalls. This isn't really necessary as correctly parsed protocol frames can be printed as part of the code in the client functions. The consolidated printfcalls structure would require new entries to be added for every extension. This patch removes the debug print methods and their use. Signed-off-by: Eric Van Hensbergen --- include/net/9p/9p.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index f9e25268b70f..46d0b8f8e5ec 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -590,7 +590,6 @@ struct p9_fcall *p9_create_tstat(u32 fid); struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat, int dotu); -int p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int dotu); int p9_errstr2errno(char *errstr, int len); struct p9_idpool *p9_idpool_create(void); -- cgit v1.2.1 From cb198131b0e7aba755ac164744536d461e86ab82 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Thu, 16 Oct 2008 08:29:31 -0500 Subject: 9p: remove unnecessary tag field from p9_req_t structure This removes the vestigial tag field from the p9_req_t structure. Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index eeb7d922816e..475ef5cf1644 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -81,7 +81,6 @@ enum p9_req_status_t { * @tc: the request fcall structure * @rc: the response fcall structure * @aux: transport specific data (provided for trans_fd migration) - * @tag: tag on request (BUG: redundant) * @req_list: link for higher level objects to chain requests * * Transport use an array to track outstanding requests @@ -104,7 +103,6 @@ struct p9_req_t { u16 flush_tag; void *aux; - int tag; struct list_head req_list; }; -- cgit v1.2.1 From 51a87c552dfd428e304c865e24ecbe091556f226 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Thu, 16 Oct 2008 08:30:07 -0500 Subject: 9p: rework client code to use new protocol support functions Now that the new protocol functions are in place, this patch switches the client code to using the new support code. Signed-off-by: Eric Van Hensbergen --- include/net/9p/9p.h | 7 ++++++- include/net/9p/client.h | 7 +++++-- 2 files changed, 11 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 46d0b8f8e5ec..56c15aee6e61 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -39,6 +39,7 @@ * @P9_DEBUG_TRANS: transport tracing * @P9_DEBUG_SLABS: memory management tracing * @P9_DEBUG_FCALL: verbose dump of protocol messages + * @P9_DEBUG_FID: fid allocation/deallocation tracking * * These flags are passed at mount time to turn on various levels of * verbosity and tracing which will be output to the system logs. @@ -53,13 +54,17 @@ enum p9_debug_flags { P9_DEBUG_TRANS = (1<<6), P9_DEBUG_SLABS = (1<<7), P9_DEBUG_FCALL = (1<<8), + P9_DEBUG_FID = (1<<9), }; extern unsigned int p9_debug_level; #define P9_DPRINTK(level, format, arg...) \ do { \ - if ((p9_debug_level & level) == level) \ + if (level == P9_DEBUG_9P) \ + printk(KERN_NOTICE "(%8.8d) " \ + format , task_pid_nr(current) , ## arg); \ + else if ((p9_debug_level & level) == level) \ printk(KERN_NOTICE "-- %s (%d): " \ format , __func__, task_pid_nr(current) , ## arg); \ } while (0) diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 475ef5cf1644..1e49b4d1030b 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -77,6 +77,7 @@ enum p9_req_status_t { * struct p9_req_t - request slots * @status: status of this request slot * @t_err: transport error + * @flush_tag: tag of request being flushed (for flush requests) * @wq: wait_queue for the client to block on for this request * @tc: the request fcall structure * @rc: the response fcall structure @@ -97,10 +98,10 @@ enum p9_req_status_t { struct p9_req_t { int status; int t_err; + u16 flush_tag; wait_queue_head_t *wq; struct p9_fcall *tc; struct p9_fcall *rc; - u16 flush_tag; void *aux; struct list_head req_list; @@ -199,10 +200,12 @@ int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count); int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata, u64 offset, u32 count); -struct p9_stat *p9_client_stat(struct p9_fid *fid); +struct p9_wstat *p9_client_stat(struct p9_fid *fid); int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); void p9_client_cb(struct p9_client *c, struct p9_req_t *req); +void p9stat_free(struct p9_wstat *); + #endif /* NET_9P_CLIENT_H */ -- cgit v1.2.1 From 02da398b950c5d079c20afaa23f322383e96070a Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Thu, 16 Oct 2008 08:29:30 -0500 Subject: 9p: eliminate depricated conv functions Remove depricated conv functions which have been replaced with new protocol routines. This patch also reworks the one instance of the file-system code which directly calls conversion routines (to accomplish unpacking dirreads). Signed-off-by: Eric Van Hensbergen --- include/net/9p/9p.h | 107 +++++------------------------------------------- include/net/9p/client.h | 2 + 2 files changed, 12 insertions(+), 97 deletions(-) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 56c15aee6e61..cb5bc731e885 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -61,21 +61,18 @@ extern unsigned int p9_debug_level; #define P9_DPRINTK(level, format, arg...) \ do { \ - if (level == P9_DEBUG_9P) \ - printk(KERN_NOTICE "(%8.8d) " \ - format , task_pid_nr(current) , ## arg); \ - else if ((p9_debug_level & level) == level) \ - printk(KERN_NOTICE "-- %s (%d): " \ - format , __func__, task_pid_nr(current) , ## arg); \ + if ((p9_debug_level & level) == level) {\ + if (level == P9_DEBUG_9P) \ + printk(KERN_NOTICE "(%8.8d) " \ + format , task_pid_nr(current) , ## arg); \ + else \ + printk(KERN_NOTICE "-- %s (%d): " \ + format , __func__, task_pid_nr(current) , ## arg); \ + } \ } while (0) -#define PRINT_FCALL_ERROR(s, fcall) P9_DPRINTK(P9_DEBUG_ERROR, \ - "%s: %.*s\n", s, fcall?fcall->params.rerror.error.len:0, \ - fcall?fcall->params.rerror.error.str:""); - #else #define P9_DPRINTK(level, format, arg...) do { } while (0) -#define PRINT_FCALL_ERROR(s, fcall) do { } while (0) #endif #define P9_EPRINTK(level, format, arg...) \ @@ -330,33 +327,6 @@ struct p9_qid { * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat */ -struct p9_stat { - u16 size; - u16 type; - u32 dev; - struct p9_qid qid; - u32 mode; - u32 atime; - u32 mtime; - u64 length; - struct p9_str name; - struct p9_str uid; - struct p9_str gid; - struct p9_str muid; - struct p9_str extension; /* 9p2000.u extensions */ - u32 n_uid; /* 9p2000.u extensions */ - u32 n_gid; /* 9p2000.u extensions */ - u32 n_muid; /* 9p2000.u extensions */ -}; - -/* - * file metadata (stat) structure used to create Twstat message - * The is identical to &p9_stat, but the strings don't point to - * the same memory block and should be freed separately - * - * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat - */ - struct p9_wstat { u16 size; u16 type; @@ -498,12 +468,12 @@ struct p9_tstat { }; struct p9_rstat { - struct p9_stat stat; + struct p9_wstat stat; }; struct p9_twstat { u32 fid; - struct p9_stat stat; + struct p9_wstat stat; }; struct p9_rwstat { @@ -517,7 +487,6 @@ struct p9_rwstat { * @offset: used by marshalling routines to track currentposition in buffer * @capacity: used by marshalling routines to track total capacity * @sdata: payload - * @params: per-operation parameters * * &p9_fcall represents the structure for all 9P RPC * transactions. Requests are packaged into fcalls, and reponses @@ -535,66 +504,10 @@ struct p9_fcall { size_t capacity; uint8_t *sdata; - - union { - struct p9_tversion tversion; - struct p9_rversion rversion; - struct p9_tauth tauth; - struct p9_rauth rauth; - struct p9_rerror rerror; - struct p9_tflush tflush; - struct p9_rflush rflush; - struct p9_tattach tattach; - struct p9_rattach rattach; - struct p9_twalk twalk; - struct p9_rwalk rwalk; - struct p9_topen topen; - struct p9_ropen ropen; - struct p9_tcreate tcreate; - struct p9_rcreate rcreate; - struct p9_tread tread; - struct p9_rread rread; - struct p9_twrite twrite; - struct p9_rwrite rwrite; - struct p9_tclunk tclunk; - struct p9_rclunk rclunk; - struct p9_tremove tremove; - struct p9_rremove rremove; - struct p9_tstat tstat; - struct p9_rstat rstat; - struct p9_twstat twstat; - struct p9_rwstat rwstat; - } params; }; struct p9_idpool; -int p9_deserialize_stat(void *buf, u32 buflen, struct p9_stat *stat, - int dotu); -int p9_deserialize_fcall(void *buf, u32 buflen, struct p9_fcall *fc, int dotu); -void p9_set_tag(struct p9_fcall *fc, u16 tag); -struct p9_fcall *p9_create_tversion(u32 msize, char *version); -struct p9_fcall *p9_create_tattach(u32 fid, u32 afid, char *uname, - char *aname, u32 n_uname, int dotu); -struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname, - u32 n_uname, int dotu); -struct p9_fcall *p9_create_tflush(u16 oldtag); -struct p9_fcall *p9_create_twalk(u32 fid, u32 newfid, u16 nwname, - char **wnames); -struct p9_fcall *p9_create_topen(u32 fid, u8 mode); -struct p9_fcall *p9_create_tcreate(u32 fid, char *name, u32 perm, u8 mode, - char *extension, int dotu); -struct p9_fcall *p9_create_tread(u32 fid, u64 offset, u32 count); -struct p9_fcall *p9_create_twrite(u32 fid, u64 offset, u32 count, - const char *data); -struct p9_fcall *p9_create_twrite_u(u32 fid, u64 offset, u32 count, - const char __user *data); -struct p9_fcall *p9_create_tclunk(u32 fid); -struct p9_fcall *p9_create_tremove(u32 fid); -struct p9_fcall *p9_create_tstat(u32 fid); -struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat, - int dotu); - int p9_errstr2errno(char *errstr, int len); struct p9_idpool *p9_idpool_create(void); diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 1e49b4d1030b..1f17f3d93727 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -206,6 +206,8 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); void p9_client_cb(struct p9_client *c, struct p9_req_t *req); +int p9stat_read(char *, int, struct p9_wstat *, int); void p9stat_free(struct p9_wstat *); + #endif /* NET_9P_CLIENT_H */ -- cgit v1.2.1 From fe11edfaabf1787c05d782a7b33e6497d1118b1d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:11 +0200 Subject: ide: IDE_AFLAG_MEDIA_CHANGED -> IDE_DFLAG_MEDIA_CHANGED There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index c47e371554c1..155a57f55c60 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -464,7 +464,6 @@ struct ide_acpi_hwif_link; /* ATAPI device flags */ enum { IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), - IDE_AFLAG_MEDIA_CHANGED = (1 << 1), /* Drive cannot lock the door. */ IDE_AFLAG_NO_DOORLOCK = (1 << 2), @@ -578,7 +577,8 @@ enum { /* don't unload heads */ IDE_DFLAG_NO_UNLOAD = (1 << 27), /* heads unloaded, please don't reset port */ - IDE_DFLAG_PARKED = (1 << 28) + IDE_DFLAG_PARKED = (1 << 28), + IDE_DFLAG_MEDIA_CHANGED = (1 << 29), }; struct ide_drive_s { -- cgit v1.2.1 From da167876bd0f71f1c646e5dd98997544d8d90e8e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:11 +0200 Subject: ide: IDE_AFLAG_WP -> IDE_DFLAG_WP There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index 155a57f55c60..bd0a4d36b6d3 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -503,8 +503,6 @@ enum { IDE_AFLAG_CLIK_DRIVE = (1 << 19), /* Requires BH algorithm for packets */ IDE_AFLAG_ZIP_DRIVE = (1 << 20), - /* Write protect */ - IDE_AFLAG_WP = (1 << 21), /* Supports format progress report */ IDE_AFLAG_SRFP = (1 << 22), @@ -579,6 +577,8 @@ enum { /* heads unloaded, please don't reset port */ IDE_DFLAG_PARKED = (1 << 28), IDE_DFLAG_MEDIA_CHANGED = (1 << 29), + /* write protect */ + IDE_DFLAG_WP = (1 << 30), }; struct ide_drive_s { -- cgit v1.2.1 From e01286282eef85e4783b06fb2e0ed84fc111eb32 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:11 +0200 Subject: ide: IDE_AFLAG_FORMAT_IN_PROGRESS -> IDE_DFLAG_FORMAT_IN_PROGRESS There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index bd0a4d36b6d3..d111c3ebbbae 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -497,8 +497,6 @@ enum { IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), /* ide-floppy */ - /* Format in progress */ - IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), /* Avoid commands not supported in Clik drive */ IDE_AFLAG_CLIK_DRIVE = (1 << 19), /* Requires BH algorithm for packets */ @@ -579,6 +577,7 @@ enum { IDE_DFLAG_MEDIA_CHANGED = (1 << 29), /* write protect */ IDE_DFLAG_WP = (1 << 30), + IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 31), }; struct ide_drive_s { -- cgit v1.2.1 From 42619d35c7af2f88cad56425fe3981f1f65ff0bd Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:11 +0200 Subject: ide: remove IDE_AFLAG_NO_DOORLOCKING Just use IDE_DFLAG_DOORLOCKING instead. There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index d111c3ebbbae..ba51a93fa547 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -464,8 +464,6 @@ struct ide_acpi_hwif_link; /* ATAPI device flags */ enum { IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), - /* Drive cannot lock the door. */ - IDE_AFLAG_NO_DOORLOCK = (1 << 2), /* ide-cd */ /* Drive cannot eject the disc. */ -- cgit v1.2.1 From 79cb380397c834a35952d8497651d93b543ef968 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:13 +0200 Subject: ide: allow device drivers to specify per-device type /proc settings Turn ide_driver_t's 'proc' field into ->proc_entries method (and also 'settings' field into ->proc_devsets method). Then update all device drivers accordingly. There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index ba51a93fa547..488808891acb 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1120,8 +1120,8 @@ struct ide_driver_s { void (*resume)(ide_drive_t *); void (*shutdown)(ide_drive_t *); #ifdef CONFIG_IDE_PROC_FS - ide_proc_entry_t *proc; - const struct ide_proc_devset *settings; + ide_proc_entry_t * (*proc_entries)(ide_drive_t *); + const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); #endif }; -- cgit v1.2.1 From 806f80a6fc203ad0bde84e5a9e94572617d2ae45 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:14 +0200 Subject: ide: add generic ATA/ATAPI disk driver * Add struct ide_disk_ops containing protocol specific methods. * Add 'struct ide_disk_ops *' to ide_drive_t. * Convert ide-{disk,floppy} drivers to use struct ide_disk_ops. * Merge ide-{disk,floppy} drivers into generic ide-gd driver. While at it: - ide_disk_init_capacity() -> ide_disk_get_capacity() Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include') diff --git a/include/linux/ide.h b/include/linux/ide.h index 488808891acb..89e53cfbc787 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -461,6 +461,23 @@ struct ide_acpi_drive_link; struct ide_acpi_hwif_link; #endif +struct ide_drive_s; + +struct ide_disk_ops { + int (*check)(struct ide_drive_s *, const char *); + int (*get_capacity)(struct ide_drive_s *); + void (*setup)(struct ide_drive_s *); + void (*flush)(struct ide_drive_s *); + int (*init_media)(struct ide_drive_s *, struct gendisk *); + int (*set_doorlock)(struct ide_drive_s *, struct gendisk *, + int); + ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *, + sector_t); + int (*end_request)(struct ide_drive_s *, int, int); + int (*ioctl)(struct ide_drive_s *, struct inode *, + struct file *, unsigned int, unsigned long); +}; + /* ATAPI device flags */ enum { IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), @@ -594,6 +611,8 @@ struct ide_drive_s { #endif struct hwif_s *hwif; /* actually (ide_hwif_t *) */ + const struct ide_disk_ops *disk_ops; + unsigned long dev_flags; unsigned long sleep; /* sleep until this time */ -- cgit v1.2.1 From 30c7ed5aba72bb7357282cf8f411b2e74d82081c Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:14 +0200 Subject: ide: fix support for IDE PCI controllers using MMIO on frv Just include for __ide_mm_*() instead of defining them to normal I/O helpers so PCI bus <-> CPU byte-swapping is done as needed. Cc: David Howells Signed-off-by: Bartlomiej Zolnierkiewicz --- include/asm-frv/ide.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'include') diff --git a/include/asm-frv/ide.h b/include/asm-frv/ide.h index 7ebcc56a2229..361076611855 100644 --- a/include/asm-frv/ide.h +++ b/include/asm-frv/ide.h @@ -18,15 +18,7 @@ #include #include -/****************************************************************************/ -/* - * some bits needed for parts of the IDE subsystem to compile - */ -#define __ide_mm_insw(port, addr, n) insw((unsigned long) (port), addr, n) -#define __ide_mm_insl(port, addr, n) insl((unsigned long) (port), addr, n) -#define __ide_mm_outsw(port, addr, n) outsw((unsigned long) (port), addr, n) -#define __ide_mm_outsl(port, addr, n) outsl((unsigned long) (port), addr, n) - +#include #endif /* __KERNEL__ */ #endif /* _ASM_IDE_H */ -- cgit v1.2.1 From dc10f6119636a5ff13b633e722e720fe0253202b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:15 +0200 Subject: ide: remove M68K_IDE_SWAPW define from Since we solved this by overriding default ->{in,out}put_data methods in {q40,falcon}ide M68K_IDE_SWAP define can go away. Acked-by: Geert Uytterhoeven Cc: Roman Zippel Signed-off-by: Bartlomiej Zolnierkiewicz --- include/asm-m68k/ide.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/asm-m68k/ide.h b/include/asm-m68k/ide.h index 1daf6cbdd9f0..b996a3c8cff5 100644 --- a/include/asm-m68k/ide.h +++ b/include/asm-m68k/ide.h @@ -92,15 +92,6 @@ #define outsw_swapw(port, addr, n) raw_outsw_swapw((u16 *)port, addr, n) #endif - -/* Q40 and Atari have byteswapped IDE busses and since many interesting - * values in the identification string are text, chars and words they - * happened to be almost correct without swapping.. However *_capacity - * is needed for drives over 8 GB. RZ */ -#if defined(CONFIG_Q40) || defined(CONFIG_ATARI) -#define M68K_IDE_SWAPW (MACH_IS_Q40 || MACH_IS_ATARI) -#endif - #ifdef CONFIG_BLK_DEV_FALCON_IDE #define IDE_ARCH_LOCK -- cgit v1.2.1 From 21f45eb1d381aad30094751c60ae8171d6223a66 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 17 Oct 2008 18:09:15 +0200 Subject: ide: remove unused macros from Acked-by: Kyle McMartin Signed-off-by: Bartlomiej Zolnierkiewicz --- include/asm-parisc/ide.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/asm-parisc/ide.h b/include/asm-parisc/ide.h index c246ef75017d..81700a2321cf 100644 --- a/include/asm-parisc/ide.h +++ b/include/asm-parisc/ide.h @@ -13,10 +13,6 @@ #ifdef __KERNEL__ -#define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id)) -#define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id)) -#define ide_request_region(from,extent,name) request_region((from), (extent), (name)) -#define ide_release_region(from,extent) release_region((from), (extent)) /* Generic I/O and MEMIO string operations. */ #define __ide_insw insw -- cgit v1.2.1 From 719254faa17ffedc87ba0fadb9b34e535c9758d5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 17 Oct 2008 09:59:47 +0200 Subject: NOHZ: unify the nohz function calls in irq_enter() We have two separate nohz function calls in irq_enter() for no good reason. Just call a single NOHZ function from irq_enter() and call the bits in the tick code. Signed-off-by: Thomas Gleixner --- include/linux/tick.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/tick.h b/include/linux/tick.h index 98921a3e1aa8..b6ec8189ac0c 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -96,9 +96,11 @@ extern cpumask_t *tick_get_broadcast_oneshot_mask(void); extern void tick_clock_notify(void); extern int tick_check_oneshot_change(int allow_nohz); extern struct tick_sched *tick_get_tick_sched(int cpu); +extern void tick_check_idle(int cpu); # else static inline void tick_clock_notify(void) { } static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +static inline void tick_check_idle(int cpu) { } # endif #else /* CONFIG_GENERIC_CLOCKEVENTS */ @@ -106,26 +108,23 @@ static inline void tick_init(void) { } static inline void tick_cancel_sched_timer(int cpu) { } static inline void tick_clock_notify(void) { } static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +static inline void tick_check_idle(int cpu) { } #endif /* !CONFIG_GENERIC_CLOCKEVENTS */ # ifdef CONFIG_NO_HZ extern void tick_nohz_stop_sched_tick(int inidle); extern void tick_nohz_restart_sched_tick(void); -extern void tick_nohz_update_jiffies(void); extern ktime_t tick_nohz_get_sleep_length(void); -extern void tick_nohz_stop_idle(int cpu); extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); # else static inline void tick_nohz_stop_sched_tick(int inidle) { } static inline void tick_nohz_restart_sched_tick(void) { } -static inline void tick_nohz_update_jiffies(void) { } static inline ktime_t tick_nohz_get_sleep_length(void) { ktime_t len = { .tv64 = NSEC_PER_SEC/HZ }; return len; } -static inline void tick_nohz_stop_idle(int cpu) { } static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; } # endif /* !NO_HZ */ -- cgit v1.2.1 From 504e518953a330c8d44a95bdd65a5c9f50f1012e Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Thu, 16 Oct 2008 14:15:16 +1100 Subject: Make nfs_file_cred more robust. As not all files have an associated open_context (e.g. device special files), it is safest to test for the existence of the open context before de-referencing it. Signed-off-by: NeilBrown Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index ac8d0233b05c..4eaa8347a0d9 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -367,8 +367,12 @@ static inline struct nfs_open_context *nfs_file_open_context(struct file *filp) static inline struct rpc_cred *nfs_file_cred(struct file *file) { - if (file != NULL) - return nfs_file_open_context(file)->cred; + if (file != NULL) { + struct nfs_open_context *ctx = + nfs_file_open_context(file); + if (ctx) + return ctx->cred; + } return NULL; } -- cgit v1.2.1 From e7f4b8f1a5893ff8296b5b581e16a0b96f60a3b5 Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Fri, 17 Oct 2008 16:20:07 -0500 Subject: 9p: Improve debug support The new debug support lacks some of the information that the previous fcprint code provided -- this patch focuses on better presentation of debug data along with more helpful debug along error paths. Signed-off-by: Eric Van Hensbergen --- include/net/9p/9p.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index cb5bc731e885..d2c60c73619d 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -27,8 +27,6 @@ #ifndef NET_9P_H #define NET_9P_H -#ifdef CONFIG_NET_9P_DEBUG - /** * enum p9_debug_flags - bits for mount time debug parameter * @P9_DEBUG_ERROR: more verbose error messages including original error string @@ -55,10 +53,12 @@ enum p9_debug_flags { P9_DEBUG_SLABS = (1<<7), P9_DEBUG_FCALL = (1<<8), P9_DEBUG_FID = (1<<9), + P9_DEBUG_PKT = (1<<10), }; extern unsigned int p9_debug_level; +#ifdef CONFIG_NET_9P_DEBUG #define P9_DPRINTK(level, format, arg...) \ do { \ if ((p9_debug_level & level) == level) {\ -- cgit v1.2.1 From 97854829b97093ae172144a2597fc49ea203dcf3 Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Tue, 14 Oct 2008 19:48:07 -0300 Subject: V4L/DVB (9195): Frontend API Fix: 32APSK is a valid modulation for the DVB-S2 delivery Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- include/linux/dvb/frontend.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index 6e4ace270276..38942f731b9b 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h @@ -166,6 +166,7 @@ typedef enum fe_modulation { VSB_16, PSK_8, APSK_16, + APSK_32, DQPSK, } fe_modulation_t; -- cgit v1.2.1 From 5ba4ecc8b0166de4363cc31aa68d52abe0dff8de Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Tue, 14 Oct 2008 19:50:03 -0300 Subject: V4L/DVB (9196): Add support for DSS delivery Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- include/linux/dvb/frontend.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index 38942f731b9b..79a8ed8e6a7d 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h @@ -296,6 +296,7 @@ typedef enum fe_delivery_system { SYS_DVBC_ANNEX_AC, SYS_DVBC_ANNEX_B, SYS_DVBT, + SYS_DSS, SYS_DVBS, SYS_DVBS2, SYS_DVBH, -- cgit v1.2.1 From 7b31b57a37ab694b9693a0359bf8ed0967188533 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 13 Oct 2008 07:38:03 -0300 Subject: V4L/DVB (9209): v4l2: add comment to the v4l2-i2c-drv headers. Looking at these headers as they appear in the kernel makes you wonder why it is done that way. Refer to the v4l-dvb repository where the full unstripped header can be found to understand the reasoning behind this. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-i2c-drv-legacy.h | 11 +++++++++++ include/media/v4l2-i2c-drv.h | 11 +++++++++++ 2 files changed, 22 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-i2c-drv-legacy.h b/include/media/v4l2-i2c-drv-legacy.h index 975ffbf4e2c5..e65dd9d84e8b 100644 --- a/include/media/v4l2-i2c-drv-legacy.h +++ b/include/media/v4l2-i2c-drv-legacy.h @@ -21,6 +21,17 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +/* NOTE: the full version of this header is in the v4l-dvb repository + * and allows v4l i2c drivers to be compiled on older kernels as well. + * The version of this header as it appears in the kernel is a stripped + * version (without all the backwards compatibility stuff) and so it + * looks a bit odd. + * + * If you look at the full version then you will understand the reason + * for introducing this header since you really don't want to have all + * the tricky backwards compatibility code in each and every i2c driver. + */ + struct v4l2_i2c_driver_data { const char * const name; int driverid; diff --git a/include/media/v4l2-i2c-drv.h b/include/media/v4l2-i2c-drv.h index 40ecef29801d..efdc8bf27f87 100644 --- a/include/media/v4l2-i2c-drv.h +++ b/include/media/v4l2-i2c-drv.h @@ -21,6 +21,17 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +/* NOTE: the full version of this header is in the v4l-dvb repository + * and allows v4l i2c drivers to be compiled on older kernels as well. + * The version of this header as it appears in the kernel is a stripped + * version (without all the backwards compatibility stuff) and so it + * looks a bit odd. + * + * If you look at the full version then you will understand the reason + * for introducing this header since you really don't want to have all + * the tricky backwards compatibility code in each and every i2c driver. + */ + #ifndef __V4L2_I2C_DRV_H__ #define __V4L2_I2C_DRV_H__ -- cgit v1.2.1 From 363c35fc448943c3d6121332d28bcda2d2fbf87c Mon Sep 17 00:00:00 2001 From: Steven Toth Date: Sat, 11 Oct 2008 11:05:50 -0300 Subject: V4L/DVB (9222): S2API: Add Multiple-frontend on a single adapter support. A detailed description from the original patches 2 years ago: "The WinTV-HVR3000 has a single transport bus which is shared between a DVB-T and DVB-S modulator. These patches build on the bus acquisition cx88 work from a few weeks ago to add support for this. So to applications the HVR3000 looks like this: /dev/dvb/adapter0/fe0 (cx24123 DVB-S demod) /dev/dvb/adapter0/fe1 (cx22702 DVB-T demod) Additional boards continue as before, eg: /dev/dvb/adapter1/fe0 (lgdt3302 ATSC demod) The basic change is removing the single instance of the videobuf_dvb in cx8802_dev and saa7134_dev(?) and replacing it with a list and some supporting functions. *NOTE* This branch was taken before v4l-dvb was closed for 2.6.19 so two or three current cx88 patches appear to be reversed by this tree, this will be cleaned up in the near future. The patches missing change the mutex handing to core->lock, fix an enumeration problem." It should be recognised that a number of people have been maintaining this patchset. Significant levels of Kudos to everyone one involved, including but not limited to: Darron Broad Fabio M. Di Nitto Carlo Scarfoglio Hans Werner Without the work of these people, and countless others, my two year old patches would of died on the Mercurial linuxtv.org vine a long time ago. TODO: Revise these patches a little further so that the need for demux1 and dvr0 is optional, not mandatory on the HVR3000. HISTORY (darron): This is the last update to MFE prepared by Hans which is based upon the `scratchpad' diff created by Carlo. All MFE work prior to that point must be attributed to Fabio who ported and maintained Steve's original patch up to that time. Signed-off-by: Steven Toth Signed-off-by: Darron Broad Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 36 +++++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index b77748696329..09547ec3f3c3 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -24,12 +24,42 @@ struct videobuf_dvb { struct dvb_net net; }; -int videobuf_dvb_register(struct videobuf_dvb *dvb, +struct videobuf_dvb_frontend { + void *dev; + struct list_head felist; + int id; + struct videobuf_dvb dvb; +}; + +struct videobuf_dvb_frontends { + struct mutex lock; + struct dvb_adapter adapter; + int active_fe_id; /* Indicates which frontend in the felist is in use */ + struct videobuf_dvb_frontend frontend; +}; + +int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f, struct module *module, void *adapter_priv, struct device *device, - short *adapter_nr); -void videobuf_dvb_unregister(struct videobuf_dvb *dvb); + short *adapter_nr); //NEW + +void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f); + +int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f, + struct module *module, + void *adapter_priv, + struct device *device, + char *adapter_name, + short *adapter_nr); //NEW + +int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb); + +struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct videobuf_dvb_frontends *f, int id); + +struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id); +int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_frontend *p); + /* * Local variables: -- cgit v1.2.1 From 8e739090d6cdd43ddf938a3899c4f929db8d5ba8 Mon Sep 17 00:00:00 2001 From: Darron Broad Date: Sat, 11 Oct 2008 11:31:41 -0300 Subject: V4L/DVB (9225): MFE: Add configurable gate control This adds a configurable (one per card) gate control option for multi-frontend. Prior to this point gate control was assumed to be on the primary frontend, this is a fault when the gate to the analogue section is on the secondary which is the default for both the HVR-3000 and HVR-4000 in MFE. Signed-off-by: Darron Broad Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 09547ec3f3c3..47bc2c5e7ba9 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -36,6 +36,7 @@ struct videobuf_dvb_frontends { struct dvb_adapter adapter; int active_fe_id; /* Indicates which frontend in the felist is in use */ struct videobuf_dvb_frontend frontend; + int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */ }; int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f, -- cgit v1.2.1 From 59b1842da1c6f33ad2e8da82d3dfb3445751d964 Mon Sep 17 00:00:00 2001 From: Darron Broad Date: Sat, 11 Oct 2008 11:44:05 -0300 Subject: V4L/DVB (9227): MFE: Add multi-frontend mutual exclusion This add frontend R/W mutual exclusion. Prior to this point in time it was possible to open both frontends simultaneously which an MFE card cannot support. In order to stop this, a delayed open is performed which has the following function: - Return EBUSY after a configurable amount of time if a frontend is unavailable due to the other being in use. - Only allow opening of a frontend if the kernel thread of the other has stopped. This solution was chosen to allow switching between frontends to work as seamlessly as possible. When both frontends are actually opened simultaneously then one will only open, but if quick switching is performed between one of many then the new open will succeed in a clean fashion rather than interrupting a kernel thread. Signed-off-by: Darron Broad Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 47bc2c5e7ba9..1a401f7320b9 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -43,7 +43,8 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f, struct module *module, void *adapter_priv, struct device *device, - short *adapter_nr); //NEW + short *adapter_nr, + int mfe_shared); void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f); @@ -52,7 +53,8 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f, void *adapter_priv, struct device *device, char *adapter_name, - short *adapter_nr); //NEW + short *adapter_nr, + int mfe_shared); int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb); -- cgit v1.2.1 From 2a1d245b70f3f966f96767aaea1a2db6823e2f6e Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 15 Oct 2008 14:47:36 -0300 Subject: V4L/DVB (9240): saa7127: Fix two typos Signed-off-by: Jean Delvare Signed-off-by: Mauro Carvalho Chehab --- include/linux/i2c-id.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h index 493435bcdbe5..01d67ba9e985 100644 --- a/include/linux/i2c-id.h +++ b/include/linux/i2c-id.h @@ -60,7 +60,7 @@ #define I2C_DRIVERID_WM8775 69 /* wm8775 audio processor */ #define I2C_DRIVERID_CS53L32A 70 /* cs53l32a audio processor */ #define I2C_DRIVERID_CX25840 71 /* cx2584x video encoder */ -#define I2C_DRIVERID_SAA7127 72 /* saa7124 video encoder */ +#define I2C_DRIVERID_SAA7127 72 /* saa7127 video encoder */ #define I2C_DRIVERID_SAA711X 73 /* saa711x video encoders */ #define I2C_DRIVERID_AKITAIOEXP 74 /* IO Expander on Sharp SL-C1000 */ #define I2C_DRIVERID_INFRARED 75 /* I2C InfraRed on Video boards */ -- cgit v1.2.1 From 50c616fd0b43f50379aa70da96fd350312367367 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 16 Oct 2008 19:49:27 -0300 Subject: V4L/DVB (9241): soc-camera: move sensor power management to soc_camera_platform.c Switching sensors on and off is now done by sensor drivers themselves, typically using platform-provided hooks. Update soc_camera_platform.c to do the same. Also remove a refundant struct soc_camera_platform_info definition from soc_camera_platform.c. Tested-by: Magnus Damm Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera_platform.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/soc_camera_platform.h b/include/media/soc_camera_platform.h index 851f18220984..7c81ad32b1e5 100644 --- a/include/media/soc_camera_platform.h +++ b/include/media/soc_camera_platform.h @@ -9,6 +9,7 @@ struct soc_camera_platform_info { unsigned long format_depth; struct v4l2_pix_format format; unsigned long bus_param; + void (*power)(int); int (*set_capture)(struct soc_camera_platform_info *info, int enable); }; -- cgit v1.2.1 From 073afdd793243fff9f342c2606b9864052e9e3e5 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 16 Oct 2008 19:51:47 -0300 Subject: V4L/DVB (9245): video: add header to soc_camera_platform include file Update the soc_camera_platform header with licensing information. Signed-off-by: Magnus Damm Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera_platform.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/media/soc_camera_platform.h b/include/media/soc_camera_platform.h index 7c81ad32b1e5..1d092b4678aa 100644 --- a/include/media/soc_camera_platform.h +++ b/include/media/soc_camera_platform.h @@ -1,3 +1,13 @@ +/* + * Generic Platform Camera Driver Header + * + * Copyright (C) 2008 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + #ifndef __SOC_CAMERA_H__ #define __SOC_CAMERA_H__ -- cgit v1.2.1 From 7bdf84fc47f2d2ed2194b6ade480d043207c4098 Mon Sep 17 00:00:00 2001 From: Darron Broad Date: Wed, 15 Oct 2008 13:43:41 -0300 Subject: V4L/DVB (9265): videobuf: data storage optimisation To optimise data storage redundant vars are removed. Signed-off-by: Darron Broad Signed-off-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 1a401f7320b9..069215c77a65 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -16,7 +16,6 @@ struct videobuf_dvb { int nfeeds; /* videobuf_dvb_(un)register manges this */ - struct dvb_adapter adapter; struct dvb_demux demux; struct dmxdev dmxdev; struct dmx_frontend fe_hw; @@ -25,17 +24,17 @@ struct videobuf_dvb { }; struct videobuf_dvb_frontend { - void *dev; struct list_head felist; + void *dev; int id; struct videobuf_dvb dvb; }; struct videobuf_dvb_frontends { + struct list_head felist; struct mutex lock; struct dvb_adapter adapter; int active_fe_id; /* Indicates which frontend in the felist is in use */ - struct videobuf_dvb_frontend frontend; int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */ }; -- cgit v1.2.1 From 953cafc04e9ef9d2fd9f8afb3b3bbde1f8bb9317 Mon Sep 17 00:00:00 2001 From: Darron Broad Date: Wed, 15 Oct 2008 14:14:30 -0300 Subject: V4L/DVB (9268): tuner: add FMD1216MEX tuner This tuner was already supported by proxy as an FMD1216ME, however, the MEX uses a different FM Radio IF so this addition is now required. Signed-off-by: Darron Broad Signed-off-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab --- include/media/tuner.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/tuner.h b/include/media/tuner.h index 67c1f514d0e2..7d4e2db78076 100644 --- a/include/media/tuner.h +++ b/include/media/tuner.h @@ -123,6 +123,7 @@ #define TUNER_TEA5761 75 /* Only FM Radio Tuner */ #define TUNER_XC5000 76 /* Xceive Silicon Tuner */ #define TUNER_TCL_MF02GIP_5N 77 /* TCL MF02GIP_5N */ +#define TUNER_PHILIPS_FMD1216MEX_MK3 78 /* tv card specific */ #define TDA9887_PRESENT (1<<0) -- cgit v1.2.1 From 96b7a1a838fb5b8746fc22f4ff3cef358bf59f35 Mon Sep 17 00:00:00 2001 From: Darron Broad Date: Wed, 15 Oct 2008 20:26:34 -0300 Subject: V4L/DVB (9271): videobuf: data storage optimisation (2) To optimise data storage even further one other redundant var has been removed. This also removes a redundant assignment. Signed-off-by: Steven Toth Signed-off-by: Darron Broad Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 069215c77a65..52ddda90d3f6 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -25,7 +25,6 @@ struct videobuf_dvb { struct videobuf_dvb_frontend { struct list_head felist; - void *dev; int id; struct videobuf_dvb dvb; }; @@ -57,7 +56,7 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f, int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb); -struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct videobuf_dvb_frontends *f, int id); +struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(struct videobuf_dvb_frontends *f, int id); struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id); int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_frontend *p); -- cgit v1.2.1 From dcadd0826fce17e77cd6260569cbb3dd681c868c Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 17 Oct 2008 13:02:47 -0300 Subject: V4L/DVB (9276): videobuf-dvb: two functions are now static This patch marks those two functions as static: static int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe, static int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, Since MFE patches changed their calls by videobuf_dvb_register_bus. To avoid having to declare the prototypes, the patch moves videobuf_dvb_register_bus() to be after the declaration of the above functions used there. Cc: Steven Toth Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf-dvb.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'include') diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 52ddda90d3f6..80471c2b6343 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -46,16 +46,6 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f, void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f); -int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f, - struct module *module, - void *adapter_priv, - struct device *device, - char *adapter_name, - short *adapter_nr, - int mfe_shared); - -int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb); - struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(struct videobuf_dvb_frontends *f, int id); struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id); -- cgit v1.2.1 From ddb7f4cb819fb6b9df261ce4c80b3c6f4852620d Mon Sep 17 00:00:00 2001 From: "Carlos R. Mafra" Date: Wed, 30 Jul 2008 12:29:37 -0700 Subject: drm: remove #define's for non-linux systems There is no point in considering FreeBSD et al. in the linux kernel source code. Signed-off-by: Carlos R. Mafra Signed-off-by: Andrew Morton Signed-off-by: Dave Airlie --- include/drm/drm.h | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'include') diff --git a/include/drm/drm.h b/include/drm/drm.h index 38d3c6b8276a..0864c6920941 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -36,7 +36,6 @@ #ifndef _DRM_H_ #define _DRM_H_ -#if defined(__linux__) #if defined(__KERNEL__) #endif #include /* For _IO* macros */ @@ -46,22 +45,6 @@ #define DRM_IOC_WRITE _IOC_WRITE #define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) -#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) -#if defined(__FreeBSD__) && defined(IN_MODULE) -/* Prevent name collision when including sys/ioccom.h */ -#undef ioctl -#include -#define ioctl(a,b,c) xf86ioctl(a,b,c) -#else -#include -#endif /* __FreeBSD__ && xf86ioctl */ -#define DRM_IOCTL_NR(n) ((n) & 0xff) -#define DRM_IOC_VOID IOC_VOID -#define DRM_IOC_READ IOC_OUT -#define DRM_IOC_WRITE IOC_IN -#define DRM_IOC_READWRITE IOC_INOUT -#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) -#endif #define DRM_MAJOR 226 #define DRM_MAX_MINOR 15 -- cgit v1.2.1 From 0a3e67a4caac273a3bfc4ced3da364830b1ab241 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Tue, 30 Sep 2008 12:14:26 -0700 Subject: drm: Rework vblank-wait handling to allow interrupt reduction. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Previously, drivers supporting vblank interrupt waits would run the interrupt all the time, or all the time that any 3d client was running, preventing the CPU from sleeping for long when the system was otherwise idle. Now, interrupts are disabled any time that no client is waiting on a vblank event. The new method uses vblank counters on the chipsets when the interrupts are turned off, rather than counting interrupts, so that we can continue to present accurate vblank numbers. Co-author: Michel Dänzer Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/drm.h | 15 +++++++++ include/drm/drmP.h | 90 +++++++++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 94 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/drm/drm.h b/include/drm/drm.h index 0864c6920941..15e55039b7f1 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -454,6 +454,7 @@ struct drm_irq_busid { enum drm_vblank_seq_type { _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ + _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */ @@ -486,6 +487,19 @@ union drm_wait_vblank { struct drm_wait_vblank_reply reply; }; +#define _DRM_PRE_MODESET 1 +#define _DRM_POST_MODESET 2 + +/** + * DRM_IOCTL_MODESET_CTL ioctl argument type + * + * \sa drmModesetCtl(). + */ +struct drm_modeset_ctl { + uint32_t crtc; + uint32_t cmd; +}; + /** * DRM_IOCTL_AGP_ENABLE ioctl argument type. * @@ -570,6 +584,7 @@ struct drm_set_version { #define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, struct drm_client) #define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, struct drm_stats) #define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, struct drm_set_version) +#define DRM_IOCTL_MODESET_CTL DRM_IOW(0x08, struct drm_modeset_ctl) #define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique) #define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth) diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 1c1b13e29223..e79ce0781f0b 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -580,10 +580,53 @@ struct drm_driver { int (*kernel_context_switch) (struct drm_device *dev, int old, int new); void (*kernel_context_switch_unlock) (struct drm_device *dev); - int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence); - int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence); int (*dri_library_name) (struct drm_device *dev, char *buf); + /** + * get_vblank_counter - get raw hardware vblank counter + * @dev: DRM device + * @crtc: counter to fetch + * + * Driver callback for fetching a raw hardware vblank counter + * for @crtc. If a device doesn't have a hardware counter, the + * driver can simply return the value of drm_vblank_count and + * make the enable_vblank() and disable_vblank() hooks into no-ops, + * leaving interrupts enabled at all times. + * + * Wraparound handling and loss of events due to modesetting is dealt + * with in the DRM core code. + * + * RETURNS + * Raw vblank counter value. + */ + u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); + + /** + * enable_vblank - enable vblank interrupt events + * @dev: DRM device + * @crtc: which irq to enable + * + * Enable vblank interrupts for @crtc. If the device doesn't have + * a hardware vblank counter, this routine should be a no-op, since + * interrupts will have to stay on to keep the count accurate. + * + * RETURNS + * Zero on success, appropriate errno if the given @crtc's vblank + * interrupt cannot be enabled. + */ + int (*enable_vblank) (struct drm_device *dev, int crtc); + + /** + * disable_vblank - disable vblank interrupt events + * @dev: DRM device + * @crtc: which irq to enable + * + * Disable vblank interrupts for @crtc. If the device doesn't have + * a hardware vblank counter, this routine should be a no-op, since + * interrupts will have to stay on to keep the count accurate. + */ + void (*disable_vblank) (struct drm_device *dev, int crtc); + /** * Called by \c drm_device_is_agp. Typically used to determine if a * card is really attached to AGP or not. @@ -601,7 +644,7 @@ struct drm_driver { irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); void (*irq_preinstall) (struct drm_device *dev); - void (*irq_postinstall) (struct drm_device *dev); + int (*irq_postinstall) (struct drm_device *dev); void (*irq_uninstall) (struct drm_device *dev); void (*reclaim_buffers) (struct drm_device *dev, struct drm_file * file_priv); @@ -730,13 +773,28 @@ struct drm_device { /** \name VBLANK IRQ support */ /*@{ */ - wait_queue_head_t vbl_queue; /**< VBLANK wait queue */ - atomic_t vbl_received; - atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */ + /* + * At load time, disabling the vblank interrupt won't be allowed since + * old clients may not call the modeset ioctl and therefore misbehave. + * Once the modeset ioctl *has* been called though, we can safely + * disable them when unused. + */ + int vblank_disable_allowed; + + wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ + atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ spinlock_t vbl_lock; - struct list_head vbl_sigs; /**< signal list to send on VBLANK */ - struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */ - unsigned int vbl_pending; + struct list_head *vbl_sigs; /**< signal list to send on VBLANK */ + atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/ + atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ + u32 *last_vblank; /* protected by dev->vbl_lock, used */ + /* for wraparound handling */ + int *vblank_enabled; /* so we don't call enable more than + once per disable */ + int *vblank_inmodeset; /* Display driver is setting mode */ + struct timer_list vblank_disable_timer; + + u32 max_vblank_count; /**< size of vblank counter register */ spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ void (*locked_tasklet_func)(struct drm_device *dev); @@ -757,6 +815,7 @@ struct drm_device { struct pci_controller *hose; #endif struct drm_sg_mem *sg; /**< Scatter gather memory */ + int num_crtcs; /**< Number of CRTCs on this device */ void *dev_private; /**< device private data */ struct drm_sigdata sigdata; /**< For block_all_signals */ sigset_t sigmask; @@ -990,10 +1049,19 @@ extern void drm_driver_irq_preinstall(struct drm_device *dev); extern void drm_driver_irq_postinstall(struct drm_device *dev); extern void drm_driver_irq_uninstall(struct drm_device *dev); +extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); extern int drm_wait_vblank(struct drm_device *dev, void *data, - struct drm_file *file_priv); + struct drm_file *filp); extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); -extern void drm_vbl_send_signals(struct drm_device *dev); +extern void drm_locked_tasklet(struct drm_device *dev, + void(*func)(struct drm_device *)); +extern u32 drm_vblank_count(struct drm_device *dev, int crtc); +extern void drm_handle_vblank(struct drm_device *dev, int crtc); +extern int drm_vblank_get(struct drm_device *dev, int crtc); +extern void drm_vblank_put(struct drm_device *dev, int crtc); +/* Modesetting support */ +extern int drm_modeset_ctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); /* AGP/GART support (drm_agpsupport.h) */ -- cgit v1.2.1 From 673a394b1e3b69be886ff24abfd6df97c52e8d08 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 30 Jul 2008 12:06:12 -0700 Subject: drm: Add GEM ("graphics execution manager") to i915 driver. GEM allows the creation of persistent buffer objects accessible by the graphics device through new ioctls for managing execution of commands on the device. The userland API is almost entirely driver-specific to ensure that any driver building on this model can easily map the interface to individual driver requirements. GEM is used by the 2d driver for managing its internal state allocations and will be used for pixmap storage to reduce memory consumption and enable zero-copy GLX_EXT_texture_from_pixmap, and in the 3d driver is used to enable GL_EXT_framebuffer_object and GL_ARB_pixel_buffer_object. Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/drm.h | 31 +++++ include/drm/drmP.h | 151 ++++++++++++++++++++++ include/drm/i915_drm.h | 332 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 514 insertions(+) (limited to 'include') diff --git a/include/drm/drm.h b/include/drm/drm.h index 15e55039b7f1..f46ba4b57da4 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -570,6 +570,34 @@ struct drm_set_version { int drm_dd_minor; }; +/** DRM_IOCTL_GEM_CLOSE ioctl argument type */ +struct drm_gem_close { + /** Handle of the object to be closed. */ + uint32_t handle; + uint32_t pad; +}; + +/** DRM_IOCTL_GEM_FLINK ioctl argument type */ +struct drm_gem_flink { + /** Handle for the object being named */ + uint32_t handle; + + /** Returned global name */ + uint32_t name; +}; + +/** DRM_IOCTL_GEM_OPEN ioctl argument type */ +struct drm_gem_open { + /** Name of object being opened */ + uint32_t name; + + /** Returned handle for the object */ + uint32_t handle; + + /** Returned size of the object */ + uint64_t size; +}; + #define DRM_IOCTL_BASE 'd' #define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr) #define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type) @@ -585,6 +613,9 @@ struct drm_set_version { #define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, struct drm_stats) #define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, struct drm_set_version) #define DRM_IOCTL_MODESET_CTL DRM_IOW(0x08, struct drm_modeset_ctl) +#define DRM_IOCTL_GEM_CLOSE DRM_IOW (0x09, struct drm_gem_close) +#define DRM_IOCTL_GEM_FLINK DRM_IOWR(0x0a, struct drm_gem_flink) +#define DRM_IOCTL_GEM_OPEN DRM_IOWR(0x0b, struct drm_gem_open) #define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique) #define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth) diff --git a/include/drm/drmP.h b/include/drm/drmP.h index e79ce0781f0b..1469a1bd8821 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -104,6 +104,7 @@ struct drm_device; #define DRIVER_DMA_QUEUE 0x200 #define DRIVER_FB_DMA 0x400 #define DRIVER_IRQ_VBL2 0x800 +#define DRIVER_GEM 0x1000 /***********************************************************************/ /** \name Begin the DRM... */ @@ -387,6 +388,10 @@ struct drm_file { struct drm_minor *minor; int remove_auth_on_close; unsigned long lock_count; + /** Mapping of mm object handles to object pointers. */ + struct idr object_idr; + /** Lock for synchronization of access to object_idr. */ + spinlock_t table_lock; struct file *filp; void *driver_priv; }; @@ -557,6 +562,56 @@ struct drm_ati_pcigart_info { int table_size; }; +/** + * This structure defines the drm_mm memory object, which will be used by the + * DRM for its buffer objects. + */ +struct drm_gem_object { + /** Reference count of this object */ + struct kref refcount; + + /** Handle count of this object. Each handle also holds a reference */ + struct kref handlecount; + + /** Related drm device */ + struct drm_device *dev; + + /** File representing the shmem storage */ + struct file *filp; + + /** + * Size of the object, in bytes. Immutable over the object's + * lifetime. + */ + size_t size; + + /** + * Global name for this object, starts at 1. 0 means unnamed. + * Access is covered by the object_name_lock in the related drm_device + */ + int name; + + /** + * Memory domains. These monitor which caches contain read/write data + * related to the object. When transitioning from one set of domains + * to another, the driver is called to ensure that caches are suitably + * flushed and invalidated + */ + uint32_t read_domains; + uint32_t write_domain; + + /** + * While validating an exec operation, the + * new read/write domain values are computed here. + * They will be transferred to the above values + * at the point that any cache flushing occurs + */ + uint32_t pending_read_domains; + uint32_t pending_write_domain; + + void *driver_private; +}; + /** * DRM driver structure. This structure represent the common code for * a family of cards. There will one drm_device for each card present @@ -657,6 +712,18 @@ struct drm_driver { void (*set_version) (struct drm_device *dev, struct drm_set_version *sv); + int (*proc_init)(struct drm_minor *minor); + void (*proc_cleanup)(struct drm_minor *minor); + + /** + * Driver-specific constructor for drm_gem_objects, to set up + * obj->driver_private. + * + * Returns 0 on success. + */ + int (*gem_init_object) (struct drm_gem_object *obj); + void (*gem_free_object) (struct drm_gem_object *obj); + int major; int minor; int patchlevel; @@ -830,6 +897,22 @@ struct drm_device { spinlock_t drw_lock; struct idr drw_idr; /*@} */ + + /** \name GEM information */ + /*@{ */ + spinlock_t object_name_lock; + struct idr object_name_idr; + atomic_t object_count; + atomic_t object_memory; + atomic_t pin_count; + atomic_t pin_memory; + atomic_t gtt_count; + atomic_t gtt_memory; + uint32_t gtt_total; + uint32_t invalidate_domains; /* domains pending invalidation */ + uint32_t flush_domains; /* domains pending flush */ + /*@} */ + }; static __inline__ int drm_core_check_feature(struct drm_device *dev, @@ -926,6 +1009,10 @@ extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type); extern int drm_free_agp(DRM_AGP_MEM * handle, int pages); extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); +extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, + struct page **pages, + unsigned long num_pages, + uint32_t gtt_offset); extern int drm_unbind_agp(DRM_AGP_MEM * handle); /* Misc. IOCTL support (drm_ioctl.h) */ @@ -988,6 +1075,9 @@ extern int drm_getmagic(struct drm_device *dev, void *data, extern int drm_authmagic(struct drm_device *dev, void *data, struct drm_file *file_priv); +/* Cache management (drm_cache.c) */ +void drm_clflush_pages(struct page *pages[], unsigned long num_pages); + /* Locking IOCTL support (drm_lock.h) */ extern int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv); @@ -1094,6 +1184,7 @@ extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size extern int drm_agp_free_memory(DRM_AGP_MEM * handle); extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start); extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle); +extern void drm_agp_chipset_flush(struct drm_device *dev); /* Stub support (drm_stub.h) */ extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, @@ -1156,6 +1247,66 @@ extern unsigned long drm_mm_tail_space(struct drm_mm *mm); extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size); extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size); +/* Graphics Execution Manager library functions (drm_gem.c) */ +int drm_gem_init(struct drm_device *dev); +void drm_gem_object_free(struct kref *kref); +struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, + size_t size); +void drm_gem_object_handle_free(struct kref *kref); + +static inline void +drm_gem_object_reference(struct drm_gem_object *obj) +{ + kref_get(&obj->refcount); +} + +static inline void +drm_gem_object_unreference(struct drm_gem_object *obj) +{ + if (obj == NULL) + return; + + kref_put(&obj->refcount, drm_gem_object_free); +} + +int drm_gem_handle_create(struct drm_file *file_priv, + struct drm_gem_object *obj, + int *handlep); + +static inline void +drm_gem_object_handle_reference(struct drm_gem_object *obj) +{ + drm_gem_object_reference(obj); + kref_get(&obj->handlecount); +} + +static inline void +drm_gem_object_handle_unreference(struct drm_gem_object *obj) +{ + if (obj == NULL) + return; + + /* + * Must bump handle count first as this may be the last + * ref, in which case the object would disappear before we + * checked for a name + */ + kref_put(&obj->handlecount, drm_gem_object_handle_free); + drm_gem_object_unreference(obj); +} + +struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, + struct drm_file *filp, + int handle); +int drm_gem_close_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_gem_flink_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_gem_open_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); +void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); + extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev); extern void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev); extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev); diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index 05c66cf03a9e..59d08fca25a4 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -143,6 +143,22 @@ typedef struct _drm_i915_sarea { #define DRM_I915_GET_VBLANK_PIPE 0x0e #define DRM_I915_VBLANK_SWAP 0x0f #define DRM_I915_HWS_ADDR 0x11 +#define DRM_I915_GEM_INIT 0x13 +#define DRM_I915_GEM_EXECBUFFER 0x14 +#define DRM_I915_GEM_PIN 0x15 +#define DRM_I915_GEM_UNPIN 0x16 +#define DRM_I915_GEM_BUSY 0x17 +#define DRM_I915_GEM_THROTTLE 0x18 +#define DRM_I915_GEM_ENTERVT 0x19 +#define DRM_I915_GEM_LEAVEVT 0x1a +#define DRM_I915_GEM_CREATE 0x1b +#define DRM_I915_GEM_PREAD 0x1c +#define DRM_I915_GEM_PWRITE 0x1d +#define DRM_I915_GEM_MMAP 0x1e +#define DRM_I915_GEM_SET_DOMAIN 0x1f +#define DRM_I915_GEM_SW_FINISH 0x20 +#define DRM_I915_GEM_SET_TILING 0x21 +#define DRM_I915_GEM_GET_TILING 0x22 #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) #define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH) @@ -160,6 +176,20 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t) #define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t) #define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t) +#define DRM_IOCTL_I915_GEM_PIN DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin) +#define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin) +#define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy) +#define DRM_IOCTL_I915_GEM_THROTTLE DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE) +#define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT) +#define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT) +#define DRM_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create) +#define DRM_IOCTL_I915_GEM_PREAD DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread) +#define DRM_IOCTL_I915_GEM_PWRITE DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite) +#define DRM_IOCTL_I915_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap) +#define DRM_IOCTL_I915_GEM_SET_DOMAIN DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SET_DOMAIN, struct drm_i915_gem_set_domain) +#define DRM_IOCTL_I915_GEM_SW_FINISH DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish) +#define DRM_IOCTL_I915_GEM_SET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling) +#define DRM_IOCTL_I915_GEM_GET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling) /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. @@ -200,6 +230,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_IRQ_ACTIVE 1 #define I915_PARAM_ALLOW_BATCHBUFFER 2 #define I915_PARAM_LAST_DISPATCH 3 +#define I915_PARAM_HAS_GEM 5 typedef struct drm_i915_getparam { int param; @@ -267,4 +298,305 @@ typedef struct drm_i915_hws_addr { uint64_t addr; } drm_i915_hws_addr_t; +struct drm_i915_gem_init { + /** + * Beginning offset in the GTT to be managed by the DRM memory + * manager. + */ + uint64_t gtt_start; + /** + * Ending offset in the GTT to be managed by the DRM memory + * manager. + */ + uint64_t gtt_end; +}; + +struct drm_i915_gem_create { + /** + * Requested size for the object. + * + * The (page-aligned) allocated size for the object will be returned. + */ + uint64_t size; + /** + * Returned handle for the object. + * + * Object handles are nonzero. + */ + uint32_t handle; + uint32_t pad; +}; + +struct drm_i915_gem_pread { + /** Handle for the object being read. */ + uint32_t handle; + uint32_t pad; + /** Offset into the object to read from */ + uint64_t offset; + /** Length of data to read */ + uint64_t size; + /** + * Pointer to write the data into. + * + * This is a fixed-size type for 32/64 compatibility. + */ + uint64_t data_ptr; +}; + +struct drm_i915_gem_pwrite { + /** Handle for the object being written to. */ + uint32_t handle; + uint32_t pad; + /** Offset into the object to write to */ + uint64_t offset; + /** Length of data to write */ + uint64_t size; + /** + * Pointer to read the data from. + * + * This is a fixed-size type for 32/64 compatibility. + */ + uint64_t data_ptr; +}; + +struct drm_i915_gem_mmap { + /** Handle for the object being mapped. */ + uint32_t handle; + uint32_t pad; + /** Offset in the object to map. */ + uint64_t offset; + /** + * Length of data to map. + * + * The value will be page-aligned. + */ + uint64_t size; + /** + * Returned pointer the data was mapped at. + * + * This is a fixed-size type for 32/64 compatibility. + */ + uint64_t addr_ptr; +}; + +struct drm_i915_gem_set_domain { + /** Handle for the object */ + uint32_t handle; + + /** New read domains */ + uint32_t read_domains; + + /** New write domain */ + uint32_t write_domain; +}; + +struct drm_i915_gem_sw_finish { + /** Handle for the object */ + uint32_t handle; +}; + +struct drm_i915_gem_relocation_entry { + /** + * Handle of the buffer being pointed to by this relocation entry. + * + * It's appealing to make this be an index into the mm_validate_entry + * list to refer to the buffer, but this allows the driver to create + * a relocation list for state buffers and not re-write it per + * exec using the buffer. + */ + uint32_t target_handle; + + /** + * Value to be added to the offset of the target buffer to make up + * the relocation entry. + */ + uint32_t delta; + + /** Offset in the buffer the relocation entry will be written into */ + uint64_t offset; + + /** + * Offset value of the target buffer that the relocation entry was last + * written as. + * + * If the buffer has the same offset as last time, we can skip syncing + * and writing the relocation. This value is written back out by + * the execbuffer ioctl when the relocation is written. + */ + uint64_t presumed_offset; + + /** + * Target memory domains read by this operation. + */ + uint32_t read_domains; + + /** + * Target memory domains written by this operation. + * + * Note that only one domain may be written by the whole + * execbuffer operation, so that where there are conflicts, + * the application will get -EINVAL back. + */ + uint32_t write_domain; +}; + +/** @{ + * Intel memory domains + * + * Most of these just align with the various caches in + * the system and are used to flush and invalidate as + * objects end up cached in different domains. + */ +/** CPU cache */ +#define I915_GEM_DOMAIN_CPU 0x00000001 +/** Render cache, used by 2D and 3D drawing */ +#define I915_GEM_DOMAIN_RENDER 0x00000002 +/** Sampler cache, used by texture engine */ +#define I915_GEM_DOMAIN_SAMPLER 0x00000004 +/** Command queue, used to load batch buffers */ +#define I915_GEM_DOMAIN_COMMAND 0x00000008 +/** Instruction cache, used by shader programs */ +#define I915_GEM_DOMAIN_INSTRUCTION 0x00000010 +/** Vertex address cache */ +#define I915_GEM_DOMAIN_VERTEX 0x00000020 +/** GTT domain - aperture and scanout */ +#define I915_GEM_DOMAIN_GTT 0x00000040 +/** @} */ + +struct drm_i915_gem_exec_object { + /** + * User's handle for a buffer to be bound into the GTT for this + * operation. + */ + uint32_t handle; + + /** Number of relocations to be performed on this buffer */ + uint32_t relocation_count; + /** + * Pointer to array of struct drm_i915_gem_relocation_entry containing + * the relocations to be performed in this buffer. + */ + uint64_t relocs_ptr; + + /** Required alignment in graphics aperture */ + uint64_t alignment; + + /** + * Returned value of the updated offset of the object, for future + * presumed_offset writes. + */ + uint64_t offset; +}; + +struct drm_i915_gem_execbuffer { + /** + * List of buffers to be validated with their relocations to be + * performend on them. + * + * This is a pointer to an array of struct drm_i915_gem_validate_entry. + * + * These buffers must be listed in an order such that all relocations + * a buffer is performing refer to buffers that have already appeared + * in the validate list. + */ + uint64_t buffers_ptr; + uint32_t buffer_count; + + /** Offset in the batchbuffer to start execution from. */ + uint32_t batch_start_offset; + /** Bytes used in batchbuffer from batch_start_offset */ + uint32_t batch_len; + uint32_t DR1; + uint32_t DR4; + uint32_t num_cliprects; + /** This is a struct drm_clip_rect *cliprects */ + uint64_t cliprects_ptr; +}; + +struct drm_i915_gem_pin { + /** Handle of the buffer to be pinned. */ + uint32_t handle; + uint32_t pad; + + /** alignment required within the aperture */ + uint64_t alignment; + + /** Returned GTT offset of the buffer. */ + uint64_t offset; +}; + +struct drm_i915_gem_unpin { + /** Handle of the buffer to be unpinned. */ + uint32_t handle; + uint32_t pad; +}; + +struct drm_i915_gem_busy { + /** Handle of the buffer to check for busy */ + uint32_t handle; + + /** Return busy status (1 if busy, 0 if idle) */ + uint32_t busy; +}; + +#define I915_TILING_NONE 0 +#define I915_TILING_X 1 +#define I915_TILING_Y 2 + +#define I915_BIT_6_SWIZZLE_NONE 0 +#define I915_BIT_6_SWIZZLE_9 1 +#define I915_BIT_6_SWIZZLE_9_10 2 +#define I915_BIT_6_SWIZZLE_9_11 3 +#define I915_BIT_6_SWIZZLE_9_10_11 4 +/* Not seen by userland */ +#define I915_BIT_6_SWIZZLE_UNKNOWN 5 + +struct drm_i915_gem_set_tiling { + /** Handle of the buffer to have its tiling state updated */ + uint32_t handle; + + /** + * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X, + * I915_TILING_Y). + * + * This value is to be set on request, and will be updated by the + * kernel on successful return with the actual chosen tiling layout. + * + * The tiling mode may be demoted to I915_TILING_NONE when the system + * has bit 6 swizzling that can't be managed correctly by GEM. + * + * Buffer contents become undefined when changing tiling_mode. + */ + uint32_t tiling_mode; + + /** + * Stride in bytes for the object when in I915_TILING_X or + * I915_TILING_Y. + */ + uint32_t stride; + + /** + * Returned address bit 6 swizzling required for CPU access through + * mmap mapping. + */ + uint32_t swizzle_mode; +}; + +struct drm_i915_gem_get_tiling { + /** Handle of the buffer to get tiling state for. */ + uint32_t handle; + + /** + * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X, + * I915_TILING_Y). + */ + uint32_t tiling_mode; + + /** + * Returned address bit 6 swizzling required for CPU access through + * mmap mapping. + */ + uint32_t swizzle_mode; +}; + #endif /* _I915_DRM_H_ */ -- cgit v1.2.1 From ed4c9c4acf948b42b138747fcb8843ecb1a24ce4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= Date: Wed, 20 Aug 2008 11:08:52 -0400 Subject: i915: Add chip set ID param. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Kristian Høgsberg Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/i915_drm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index 59d08fca25a4..eb4b35031a55 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -230,6 +230,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_IRQ_ACTIVE 1 #define I915_PARAM_ALLOW_BATCHBUFFER 2 #define I915_PARAM_LAST_DISPATCH 3 +#define I915_PARAM_CHIPSET_ID 4 #define I915_PARAM_HAS_GEM 5 typedef struct drm_i915_getparam { -- cgit v1.2.1 From dbb19d302baa8ba518599701914f600935fc53fa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= Date: Wed, 20 Aug 2008 11:04:27 -0400 Subject: i915 gem: install and uninstall irq handler in entervt and leavevt ioctls. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Kristian Høgsberg Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/drmP.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 1469a1bd8821..51ee72c962b1 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1134,6 +1134,7 @@ extern void drm_core_reclaim_buffers(struct drm_device *dev, extern int drm_control(struct drm_device *dev, void *data, struct drm_file *file_priv); extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); +extern int drm_irq_install(struct drm_device *dev); extern int drm_irq_uninstall(struct drm_device *dev); extern void drm_driver_irq_preinstall(struct drm_device *dev); extern void drm_driver_irq_postinstall(struct drm_device *dev); -- cgit v1.2.1 From 9bfbd5cb72c9edb8504a4a7a0aa89cdb2fcb4845 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 15 Sep 2008 15:00:33 -0700 Subject: drm: kill drm_device->irq Like the last patch but adds a macro to get at the irq value instead of dereferencing pdev directly. Should make things easier for the BSD guys and if we ever support non-PCI devices. Signed-off-by: Jesse Barnes Signed-off-by: Dave Airlie --- include/drm/drmP.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 51ee72c962b1..90a9e0247d58 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -824,7 +824,6 @@ struct drm_device { /** \name Context support */ /*@{ */ - int irq; /**< Interrupt used by board */ int irq_enabled; /**< True if irq handler is enabled */ __volatile__ long context_flag; /**< Context swapping flag */ __volatile__ long interrupt_flag; /**< Interruption handler flag */ @@ -915,6 +914,11 @@ struct drm_device { }; +static inline int drm_dev_to_irq(struct drm_device *dev) +{ + return dev->pdev->irq; +} + static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature) { -- cgit v1.2.1 From ba1eb1d825fdef40f69871caf8e5842d00efbbc5 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 14 Oct 2008 19:55:10 -0700 Subject: i915: Map status page cached for chips with GTT-based HWS location. This should improve performance by avoiding uncached reads by the CPU (the point of having a status page), and may improve stability. This patch only affects G33, GM45 and G45 chips as those are the only ones using GTT-based HWS mappings. Signed-off-by: Keith Packard Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/drmP.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 90a9e0247d58..59c796b46ee7 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1016,7 +1016,8 @@ extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, struct page **pages, unsigned long num_pages, - uint32_t gtt_offset); + uint32_t gtt_offset, + uint32_t type); extern int drm_unbind_agp(DRM_AGP_MEM * handle); /* Misc. IOCTL support (drm_ioctl.h) */ -- cgit v1.2.1 From f0738e92403466d45cfb5008da668260c77fff4b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 16 Oct 2008 17:12:02 +1000 Subject: drm/radeon: add support for RS740 IGP chipsets. This adds support for the HS2100 IGP chipset. Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 135bd19499fc..e3a7b93fdefc 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -237,6 +237,10 @@ {0x1002, 0x7835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x791e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ {0x1002, 0x791f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ + {0x1002, 0x796c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ + {0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ + {0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ + {0x1002, 0x796f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ {0, 0, 0} #define r128_PCI_IDS \ -- cgit v1.2.1 From b2ceddfa52cbeb244b90096f1e8d3e9f7e0ce299 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 17 Oct 2008 09:19:33 +1000 Subject: radeon: add RS400 family support. This adds support for the RS400 family of IGPs for Intel CPUs. Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index e3a7b93fdefc..401cc8b7e88c 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -113,8 +113,10 @@ {0x1002, 0x5964, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \ {0x1002, 0x5965, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \ {0x1002, 0x5969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \ - {0x1002, 0x5a61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS480|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \ - {0x1002, 0x5a62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS480|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \ + {0x1002, 0x5a41, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_IGPGART}, \ + {0x1002, 0x5a42, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \ + {0x1002, 0x5a61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_IGPGART}, \ + {0x1002, 0x5a62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \ {0x1002, 0x5b60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5b62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5b63, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \ -- cgit v1.2.1 From edc6f389f6ae9cb7621270a8ddbb1892bd8df125 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 17 Oct 2008 09:21:45 +1000 Subject: radeon: fix PCI bus mastering support enables. Someone noticed these registers moved around for later chips, so we redo the codepaths per-chip. PCIE chips don't appear to require explicit enables. Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 44 ++++++++++++++++++++++---------------------- 1 file changed, 22 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 401cc8b7e88c..da04109741e8 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -84,18 +84,18 @@ {0x1002, 0x5462, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \ {0x1002, 0x5464, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \ {0x1002, 0x5657, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5548, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5549, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x554F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5550, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5551, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5552, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5554, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5548, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5549, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x554F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5550, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5551, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5552, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5554, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ {0x1002, 0x564A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x564B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x564F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ @@ -124,16 +124,16 @@ {0x1002, 0x5b65, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5c61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280|RADEON_IS_MOBILITY}, \ {0x1002, 0x5c63, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280|RADEON_IS_MOBILITY}, \ - {0x1002, 0x5d48, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d49, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d4a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d4c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d4d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d4e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d4f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d50, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d52, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ - {0x1002, 0x5d57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R420|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d48, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d49, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d4a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d4c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d4d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d4e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d4f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d50, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d52, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x5d57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5e48, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5e4a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_NEW_MEMMAP}, \ {0x1002, 0x5e4b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_NEW_MEMMAP}, \ -- cgit v1.2.1 From 5b775f672cc993ba9dba5626811ab1f2ac42883b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 26 Aug 2008 16:22:06 -0700 Subject: USB: add USB test and measurement class driver This driver was originaly written by Stefan Kopp, but massively reworked by Greg for submission. Thanks to Felipe Balbi for lots of work in cleaning up this driver. Thanks to Oliver Neukum for reviewing previous versions and pointing out problems. Cc: Stefan Kopp Cc: Marcel Janssen Cc: Felipe Balbi Cc: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/Kbuild | 2 +- include/linux/usb/tmc.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 44 insertions(+), 1 deletion(-) create mode 100644 include/linux/usb/tmc.h (limited to 'include') diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild index 42e84fc315e3..29fd73b0bffc 100644 --- a/include/linux/usb/Kbuild +++ b/include/linux/usb/Kbuild @@ -4,4 +4,4 @@ header-y += ch9.h header-y += gadgetfs.h header-y += midi.h header-y += g_printer.h - +header-y += tmc.h diff --git a/include/linux/usb/tmc.h b/include/linux/usb/tmc.h new file mode 100644 index 000000000000..c045ae12556c --- /dev/null +++ b/include/linux/usb/tmc.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2007 Stefan Kopp, Gechingen, Germany + * Copyright (C) 2008 Novell, Inc. + * Copyright (C) 2008 Greg Kroah-Hartman + * + * This file holds USB constants defined by the USB Device Class + * Definition for Test and Measurement devices published by the USB-IF. + * + * It also has the ioctl definitions for the usbtmc kernel driver that + * userspace needs to know about. + */ + +#ifndef __LINUX_USB_TMC_H +#define __LINUX_USB_TMC_H + +/* USB TMC status values */ +#define USBTMC_STATUS_SUCCESS 0x01 +#define USBTMC_STATUS_PENDING 0x02 +#define USBTMC_STATUS_FAILED 0x80 +#define USBTMC_STATUS_TRANSFER_NOT_IN_PROGRESS 0x81 +#define USBTMC_STATUS_SPLIT_NOT_IN_PROGRESS 0x82 +#define USBTMC_STATUS_SPLIT_IN_PROGRESS 0x83 + +/* USB TMC requests values */ +#define USBTMC_REQUEST_INITIATE_ABORT_BULK_OUT 1 +#define USBTMC_REQUEST_CHECK_ABORT_BULK_OUT_STATUS 2 +#define USBTMC_REQUEST_INITIATE_ABORT_BULK_IN 3 +#define USBTMC_REQUEST_CHECK_ABORT_BULK_IN_STATUS 4 +#define USBTMC_REQUEST_INITIATE_CLEAR 5 +#define USBTMC_REQUEST_CHECK_CLEAR_STATUS 6 +#define USBTMC_REQUEST_GET_CAPABILITIES 7 +#define USBTMC_REQUEST_INDICATOR_PULSE 64 + +/* Request values for USBTMC driver's ioctl entry point */ +#define USBTMC_IOC_NR 91 +#define USBTMC_IOCTL_INDICATOR_PULSE _IO(USBTMC_IOC_NR, 1) +#define USBTMC_IOCTL_CLEAR _IO(USBTMC_IOC_NR, 2) +#define USBTMC_IOCTL_ABORT_BULK_OUT _IO(USBTMC_IOC_NR, 3) +#define USBTMC_IOCTL_ABORT_BULK_IN _IO(USBTMC_IOC_NR, 4) +#define USBTMC_IOCTL_CLEAR_OUT_HALT _IO(USBTMC_IOC_NR, 6) +#define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7) + +#endif -- cgit v1.2.1 From 55b447bf79ad25591437d24b78caa9d0ae4fec82 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Tue, 29 Jul 2008 15:26:15 +0200 Subject: USB: kill URBs permanently looking at usb_kill_urb() it seems to me that it is unnecessarily lenient. In the use case of disconnect() you never want to use the URB again (for the same device) But leaving urb->reject elevated will make it easier to avoid races between read/write and disconnect. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/usb.h b/include/linux/usb.h index 94ac74aba6b6..3371c91e7ff4 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1459,6 +1459,8 @@ extern struct urb *usb_get_urb(struct urb *urb); extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_unlink_urb(struct urb *urb); extern void usb_kill_urb(struct urb *urb); +extern void usb_poison_urb(struct urb *urb); +extern void usb_unpoison_urb(struct urb *urb); extern void usb_kill_anchored_urbs(struct usb_anchor *anchor); extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor); extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor); -- cgit v1.2.1 From 6a2839bedc1502b3f0366cc3ad1099a1d92cf8fb Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Tue, 29 Jul 2008 16:18:47 +0200 Subject: USB: extend poisoning to anchors this extends the poisoning concept to anchors. This way poisoning will work with fire and forget drivers. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/usb.h b/include/linux/usb.h index 3371c91e7ff4..d97927970f54 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1135,6 +1135,7 @@ struct usb_anchor { struct list_head urb_list; wait_queue_head_t wait; spinlock_t lock; + unsigned int poisoned:1; }; static inline void init_usb_anchor(struct usb_anchor *anchor) @@ -1462,6 +1463,7 @@ extern void usb_kill_urb(struct urb *urb); extern void usb_poison_urb(struct urb *urb); extern void usb_unpoison_urb(struct urb *urb); extern void usb_kill_anchored_urbs(struct usb_anchor *anchor); +extern void usb_poison_anchored_urbs(struct usb_anchor *anchor); extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor); extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor); extern void usb_unanchor_urb(struct urb *urb); -- cgit v1.2.1 From 60beed95e38793c0baff7f94433c1f639d8d5efd Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 18 Aug 2008 17:38:22 -0700 Subject: usb gadget: function activation/deactivation Add a new mechanism to the composite gadget framework, letting functions deactivate (and reactivate) themselves. Think of it as a refcounted wrapper for the software pullup control. A key example of why to use this mechanism involves functions that require a userspace daemon. Those functions shuld use this new mechanism to prevent the gadget from enumerating until those daemons are activated. Without this mechanism, hosts would see devices that malfunction until the relevant daemons start. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/composite.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index c932390c6da0..935c380ffe47 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -130,6 +130,9 @@ struct usb_function { int usb_add_function(struct usb_configuration *, struct usb_function *); +int usb_function_deactivate(struct usb_function *); +int usb_function_activate(struct usb_function *); + int usb_interface_id(struct usb_configuration *, struct usb_function *); /** @@ -316,9 +319,13 @@ struct usb_composite_dev { struct usb_composite_driver *driver; u8 next_string_id; - spinlock_t lock; + /* the gadget driver won't enable the data pullup + * while the deactivation count is nonzero. + */ + unsigned deactivations; - /* REVISIT use and existence of lock ... */ + /* protects at least deactivation count */ + spinlock_t lock; }; extern int usb_string_id(struct usb_composite_dev *c); -- cgit v1.2.1 From 3086775a4916b0fe128d924d83f4e7d7c39e4d0e Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 18 Aug 2008 17:39:30 -0700 Subject: usb gadget: cdc obex glue The following patch introduces a new f_obex.c function driver. It allows userspace obex servers to use usb as transport layer for their messages. [ dbrownell@users.sourceforge.net: various fixes and cleanups ] Signed-off-by: Felipe Balbi Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/cdc.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h index ca228bb94218..18a729343ffa 100644 --- a/include/linux/usb/cdc.h +++ b/include/linux/usb/cdc.h @@ -160,6 +160,15 @@ struct usb_cdc_mdlm_detail_desc { __u8 bDetailData[0]; } __attribute__ ((packed)); +/* "OBEX Control Model Functional Descriptor" */ +struct usb_cdc_obex_desc { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubType; + + __le16 bcdVersion; +} __attribute__ ((packed)); + /*-------------------------------------------------------------------------*/ /* -- cgit v1.2.1 From 0b14c3881d4b91272b779f4037e263d392de058f Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Sat, 20 Sep 2008 14:41:47 -0700 Subject: USB: Fix spelling in usb/serial.h Fixes a minor typo in the comments for usb_set_serial_data. Signed-off-by: Geoff Levand Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/serial.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 655341d0f534..0b8617a9176d 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -192,7 +192,7 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data) * The driver.owner field should be set to the module owner of this driver. * The driver.name field should be set to the name of this driver (remember * it will show up in sysfs, so it needs to be short and to the point. - * Useing the module name is a good idea.) + * Using the module name is a good idea.) */ struct usb_serial_driver { const char *description; -- cgit v1.2.1 From cbc30118d7a376dab4113f299c0c8f035737a5c3 Mon Sep 17 00:00:00 2001 From: Stephen Ware Date: Tue, 30 Sep 2008 11:39:38 -0700 Subject: usb: vstusb.c : new driver for spectrometers used by Vernier Software & Technology, Inc. This patch adds the vstusb driver to the drivers/usb/misc directory. This driver provides support for Vernier Software & Technology spectrometers, all made by Ocean Optics. The driver provides both IOCTL and read()/write() methods for sending raw data to spectrometers across the bulk channel. Each method allows for a configured timeout. From: Stephen Ware Signed-off-by: Dennis O'Brien Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/Kbuild | 1 + include/linux/usb/vstusb.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 72 insertions(+) create mode 100644 include/linux/usb/vstusb.h (limited to 'include') diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild index 29fd73b0bffc..54c446309a2a 100644 --- a/include/linux/usb/Kbuild +++ b/include/linux/usb/Kbuild @@ -5,3 +5,4 @@ header-y += gadgetfs.h header-y += midi.h header-y += g_printer.h header-y += tmc.h +header-y += vstusb.h diff --git a/include/linux/usb/vstusb.h b/include/linux/usb/vstusb.h new file mode 100644 index 000000000000..1cfac67191ff --- /dev/null +++ b/include/linux/usb/vstusb.h @@ -0,0 +1,71 @@ +/***************************************************************************** + * File: drivers/usb/misc/vstusb.h + * + * Purpose: Support for the bulk USB Vernier Spectrophotometers + * + * Author: EQware Engineering, Inc. + * Oregon City, OR, USA 97045 + * + * Copyright: 2007, 2008 + * Vernier Software & Technology + * Beaverton, OR, USA 97005 + * + * Web: www.vernier.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + *****************************************************************************/ +/***************************************************************************** + * + * The vstusb module is a standard usb 'client' driver running on top of the + * standard usb host controller stack. + * + * In general, vstusb supports standard bulk usb pipes. It supports multiple + * devices and multiple pipes per device. + * + * The vstusb driver supports two interfaces: + * 1 - ioctl SEND_PIPE/RECV_PIPE - a general bulk write/read msg + * interface to any pipe with timeout support; + * 2 - standard read/write with ioctl config - offers standard read/write + * interface with ioctl configured pipes and timeouts. + * + * Both interfaces can be signal from other process and will abort its i/o + * operation. + * + * A timeout of 0 means NO timeout. The user can still terminate the read via + * signal. + * + * If using multiple threads with this driver, the user should ensure that + * any reads, writes, or ioctls are complete before closing the device. + * Changing read/write timeouts or pipes takes effect on next read/write. + * + *****************************************************************************/ + +struct vstusb_args { + union { + /* this struct is used for IOCTL_VSTUSB_SEND_PIPE, * + * IOCTL_VSTUSB_RECV_PIPE, and read()/write() fops */ + struct { + void __user *buffer; + size_t count; + unsigned int timeout_ms; + int pipe; + }; + + /* this one is used for IOCTL_VSTUSB_CONFIG_RW */ + struct { + int rd_pipe; + int rd_timeout_ms; + int wr_pipe; + int wr_timeout_ms; + }; + }; +}; + +#define VST_IOC_MAGIC 'L' +#define VST_IOC_FIRST 0x20 +#define IOCTL_VSTUSB_SEND_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST) +#define IOCTL_VSTUSB_RECV_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 1) +#define IOCTL_VSTUSB_CONFIG_RW _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 2) -- cgit v1.2.1 From 1987625226a918cd20c334ffce5e2a224cba0718 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 25 Aug 2008 22:40:25 +0200 Subject: USB: anchor API changes needed for btusb This extends the anchor API as btusb needs for autosuspend. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/usb.h b/include/linux/usb.h index d97927970f54..8fa973bede5e 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1469,6 +1469,9 @@ extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor); extern void usb_unanchor_urb(struct urb *urb); extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, unsigned int timeout); +extern struct urb *usb_get_from_anchor(struct usb_anchor *anchor); +extern void usb_scuttle_anchored_urbs(struct usb_anchor *anchor); +extern int usb_anchor_empty(struct usb_anchor *anchor); /** * usb_urb_dir_in - check if an URB describes an IN transfer -- cgit v1.2.1 From aaf7ea20000436df3cbb397ccb734ad1e2e5164d Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Wed, 15 Oct 2008 08:38:49 +0200 Subject: [MTD] [NAND] GPIO NAND flash driver The patch adds support for NAND flashes connected to GPIOs. Signed-off-by: Russell King Signed-off-by: Mike Rapoport Signed-off-by: David Woodhouse --- include/linux/mtd/nand-gpio.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 include/linux/mtd/nand-gpio.h (limited to 'include') diff --git a/include/linux/mtd/nand-gpio.h b/include/linux/mtd/nand-gpio.h new file mode 100644 index 000000000000..51534e50f7fc --- /dev/null +++ b/include/linux/mtd/nand-gpio.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_MTD_NAND_GPIO_H +#define __LINUX_MTD_NAND_GPIO_H + +#include + +struct gpio_nand_platdata { + int gpio_nce; + int gpio_nwp; + int gpio_cle; + int gpio_ale; + int gpio_rdy; + void (*adjust_parts)(struct gpio_nand_platdata *, size_t); + struct mtd_partition *parts; + unsigned int num_parts; + unsigned int options; + int chip_delay; +}; + +#endif -- cgit v1.2.1 From dd3a1db900f2a215a7d7dd71b836e149a6cf5fed Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 16 Oct 2008 18:20:58 +0200 Subject: genirq: improve include files Move the irq_desc related iterators out of irq.h, into irqnr.h, also available via interrupt.h. This way non-genirq (and even non-hardirq) architectures get the common definitions and iterators. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- include/linux/interrupt.h | 1 + include/linux/irq.h | 20 +------------------- include/linux/irqnr.h | 24 ++++++++++++++++++++++++ 3 files changed, 26 insertions(+), 19 deletions(-) create mode 100644 include/linux/irqnr.h (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 58ff4e74b2f3..72fcfcff5637 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include diff --git a/include/linux/irq.h b/include/linux/irq.h index 0618fb362cb4..d058c57be02d 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -11,25 +11,6 @@ #include -#ifndef CONFIG_GENERIC_HARDIRQS -# define nr_irqs NR_IRQS - -# define for_each_irq_desc(irq, desc) \ - for (irq = 0; irq < nr_irqs; irq++) -#else -extern int nr_irqs; - -# define for_each_irq_desc(irq, desc) \ - for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++) - -# define for_each_irq_desc_reverse(irq, desc) \ - for (irq = nr_irqs -1, desc = irq_desc + (nr_irqs -1 ); \ - irq > 0; irq--, desc--) -#endif - -#define for_each_irq_nr(irq) \ - for (irq = 0; irq < nr_irqs; irq++) - #ifndef CONFIG_S390 #include @@ -37,6 +18,7 @@ extern int nr_irqs; #include #include #include +#include #include #include diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h new file mode 100644 index 000000000000..3171ddc3b39d --- /dev/null +++ b/include/linux/irqnr.h @@ -0,0 +1,24 @@ +#ifndef _LINUX_IRQNR_H +#define _LINUX_IRQNR_H + +#ifndef CONFIG_GENERIC_HARDIRQS +#include +# define nr_irqs NR_IRQS + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0; irq < nr_irqs; irq++) +#else +extern int nr_irqs; + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++) + +# define for_each_irq_desc_reverse(irq, desc) \ + for (irq = nr_irqs -1, desc = irq_desc + (nr_irqs -1 ); \ + irq > 0; irq--, desc--) +#endif + +#define for_each_irq_nr(irq) \ + for (irq = 0; irq < nr_irqs; irq++) + +#endif -- cgit v1.2.1 From 1c1b6ffce5737d764cc474b9bd6677bb9a344094 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Wed, 24 Sep 2008 23:36:23 +0200 Subject: mfd: provide and use setup hook for tc6393xb Instead of using bitfields for initial gpio setup, provide generic setup/teardown hooks that can be used to set the gpio states, register child devices, etc. Signed-off-by: Dmitry Baryshkov Signed-off-by: Samuel Ortiz --- include/linux/mfd/tc6393xb.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index fec7b3f7a81f..1fa820646d98 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -21,8 +21,6 @@ struct tc6393xb_platform_data { u16 scr_pll2cr; /* PLL2 Control */ u16 scr_gper; /* GP Enable */ - u32 scr_gpo_doecr; /* GPO Data OE Control */ - u32 scr_gpo_dsr; /* GPO Data Set */ int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); @@ -31,6 +29,8 @@ struct tc6393xb_platform_data { int irq_base; /* base for subdevice irqs */ int gpio_base; + int (*setup)(struct platform_device *dev); + void (*teardown)(struct platform_device *dev); struct tmio_nand_data *nand_data; }; -- cgit v1.2.1 From f98a0bd0e4b77b12e49ce01f4c9f04503931c291 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Wed, 24 Sep 2008 23:46:10 +0200 Subject: mfd: do tcb6393xb state restore on resume only if requested As requested by Ian make state restore only if it's requested by platform data: some platforms do correctly save the state of the chip during suspend/resume, but some (like tosa) incorrectly power off the chip at suspend, so the driver supports restoring some bits of the tc6393xb state (not full, merely enough to support resume on tosa). With this patch this code is disabled by default. Signed-off-by: Dmitry Baryshkov Acked-by: Ian Molton Signed-off-by: Samuel Ortiz --- include/linux/mfd/tc6393xb.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 1fa820646d98..3ce10ae0f397 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -33,6 +33,10 @@ struct tc6393xb_platform_data { void (*teardown)(struct platform_device *dev); struct tmio_nand_data *nand_data; + + unsigned resume_restore : 1; /* make special actions + to preserve the state + on suspend/resume */ }; /* -- cgit v1.2.1 From 51a55623565c6ca864f7cf19e87c2d4bde1c0c5e Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 3 Oct 2008 20:11:36 +0200 Subject: mfd: add OHCI cell to tc6393xb Add information regarding OHCI cell of the tc6393xb Signed-off-by: Dmitry Baryshkov Acked-by: Ian Molton Signed-off-by: Samuel Ortiz --- include/linux/mfd/tc6393xb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 3ce10ae0f397..4437736ebe19 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -44,6 +44,7 @@ struct tc6393xb_platform_data { */ #define IRQ_TC6393_NAND 0 #define IRQ_TC6393_MMC 1 +#define IRQ_TC6393_OHCI 2 #define TC6393XB_NR_IRQS 8 -- cgit v1.2.1 From 9e78cfe53f3c2bc1b37870697c3cde1543fefa8b Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sat, 4 Oct 2008 00:50:36 +0200 Subject: mfd: support tmiofb cell on tc6393xb Add support for tmiofb cell found in tc6393xb chip. Signed-off-by: Dmitry Baryshkov Cc: Ian Molton Signed-off-by: Samuel Ortiz --- include/linux/mfd/tc6393xb.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 4437736ebe19..626e448205c5 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -17,6 +17,8 @@ #ifndef MFD_TC6393XB_H #define MFD_TC6393XB_H +#include + /* Also one should provide the CK3P6MI clock */ struct tc6393xb_platform_data { u16 scr_pll2cr; /* PLL2 Control */ @@ -33,18 +35,24 @@ struct tc6393xb_platform_data { void (*teardown)(struct platform_device *dev); struct tmio_nand_data *nand_data; + struct tmio_fb_data *fb_data; unsigned resume_restore : 1; /* make special actions to preserve the state on suspend/resume */ }; +extern int tc6393xb_lcd_mode(struct platform_device *fb, + const struct fb_videomode *mode); +extern int tc6393xb_lcd_set_power(struct platform_device *fb, bool on); + /* * Relative to irq_base */ #define IRQ_TC6393_NAND 0 #define IRQ_TC6393_MMC 1 #define IRQ_TC6393_OHCI 2 +#define IRQ_TC6393_FB 4 #define TC6393XB_NR_IRQS 8 -- cgit v1.2.1 From a603a7fa8717fb778bba91b5a879babf333dc6a3 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 15 Oct 2008 12:15:39 +0200 Subject: mfd: TWL4030 core driver This patch adds the core of the TWL4030 driver, which supports chips including the TPS65950. These chips are multi-function; see http://focus.ti.com/docs/prod/folders/print/tps65950.html Public specs are in the works. For now, the block diagram on the second page of the datasheet is fairly informative. There are some known issues with this core code. Most notably, the IRQ dispatching needs simplification (to use more of genirq), generalization (integrating support for secondary IRQ dispatch as well as primary, and removing the build dependency on OMAP), and then probably updating to leverage threaded IRQ support (expected to arrive in mainline "soon"). Once the core is in mainline, drivers for other parts of this chip can follow its lead and start swimming upstream too. Signed-off-by: David Brownell Signed-off-by: Samuel Ortiz --- include/linux/i2c/twl4030.h | 339 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 339 insertions(+) create mode 100644 include/linux/i2c/twl4030.h (limited to 'include') diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h new file mode 100644 index 000000000000..cdb453162a97 --- /dev/null +++ b/include/linux/i2c/twl4030.h @@ -0,0 +1,339 @@ +/* + * twl4030.h - header for TWL4030 PM and audio CODEC device + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * Based on tlv320aic23.c: + * Copyright (c) by Kai Svahn + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __TWL4030_H_ +#define __TWL4030_H_ + +/* + * Using the twl4030 core we address registers using a pair + * { module id, relative register offset } + * which that core then maps to the relevant + * { i2c slave, absolute register address } + * + * The module IDs are meaningful only to the twl4030 core code, + * which uses them as array indices to look up the first register + * address each module uses within a given i2c slave. + */ + +/* Slave 0 (i2c address 0x48) */ +#define TWL4030_MODULE_USB 0x00 + +/* Slave 1 (i2c address 0x49) */ +#define TWL4030_MODULE_AUDIO_VOICE 0x01 +#define TWL4030_MODULE_GPIO 0x02 +#define TWL4030_MODULE_INTBR 0x03 +#define TWL4030_MODULE_PIH 0x04 +#define TWL4030_MODULE_TEST 0x05 + +/* Slave 2 (i2c address 0x4a) */ +#define TWL4030_MODULE_KEYPAD 0x06 +#define TWL4030_MODULE_MADC 0x07 +#define TWL4030_MODULE_INTERRUPTS 0x08 +#define TWL4030_MODULE_LED 0x09 +#define TWL4030_MODULE_MAIN_CHARGE 0x0A +#define TWL4030_MODULE_PRECHARGE 0x0B +#define TWL4030_MODULE_PWM0 0x0C +#define TWL4030_MODULE_PWM1 0x0D +#define TWL4030_MODULE_PWMA 0x0E +#define TWL4030_MODULE_PWMB 0x0F + +/* Slave 3 (i2c address 0x4b) */ +#define TWL4030_MODULE_BACKUP 0x10 +#define TWL4030_MODULE_INT 0x11 +#define TWL4030_MODULE_PM_MASTER 0x12 +#define TWL4030_MODULE_PM_RECEIVER 0x13 +#define TWL4030_MODULE_RTC 0x14 +#define TWL4030_MODULE_SECURED_REG 0x15 + +/* + * Read and write single 8-bit registers + */ +int twl4030_i2c_write_u8(u8 mod_no, u8 val, u8 reg); +int twl4030_i2c_read_u8(u8 mod_no, u8 *val, u8 reg); + +/* + * Read and write several 8-bit registers at once. + * + * IMPORTANT: For twl4030_i2c_write(), allocate num_bytes + 1 + * for the value, and populate your data starting at offset 1. + */ +int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes); +int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes); + +/*----------------------------------------------------------------------*/ + +/* + * NOTE: at up to 1024 registers, this is a big chip. + * + * Avoid putting register declarations in this file, instead of into + * a driver-private file, unless some of the registers in a block + * need to be shared with other drivers. One example is blocks that + * have Secondary IRQ Handler (SIH) registers. + */ + +#define TWL4030_SIH_CTRL_EXCLEN_MASK BIT(0) +#define TWL4030_SIH_CTRL_PENDDIS_MASK BIT(1) +#define TWL4030_SIH_CTRL_COR_MASK BIT(2) + +/*----------------------------------------------------------------------*/ + +/* + * GPIO Block Register offsets (use TWL4030_MODULE_GPIO) + */ + +#define REG_GPIODATAIN1 0x0 +#define REG_GPIODATAIN2 0x1 +#define REG_GPIODATAIN3 0x2 +#define REG_GPIODATADIR1 0x3 +#define REG_GPIODATADIR2 0x4 +#define REG_GPIODATADIR3 0x5 +#define REG_GPIODATAOUT1 0x6 +#define REG_GPIODATAOUT2 0x7 +#define REG_GPIODATAOUT3 0x8 +#define REG_CLEARGPIODATAOUT1 0x9 +#define REG_CLEARGPIODATAOUT2 0xA +#define REG_CLEARGPIODATAOUT3 0xB +#define REG_SETGPIODATAOUT1 0xC +#define REG_SETGPIODATAOUT2 0xD +#define REG_SETGPIODATAOUT3 0xE +#define REG_GPIO_DEBEN1 0xF +#define REG_GPIO_DEBEN2 0x10 +#define REG_GPIO_DEBEN3 0x11 +#define REG_GPIO_CTRL 0x12 +#define REG_GPIOPUPDCTR1 0x13 +#define REG_GPIOPUPDCTR2 0x14 +#define REG_GPIOPUPDCTR3 0x15 +#define REG_GPIOPUPDCTR4 0x16 +#define REG_GPIOPUPDCTR5 0x17 +#define REG_GPIO_ISR1A 0x19 +#define REG_GPIO_ISR2A 0x1A +#define REG_GPIO_ISR3A 0x1B +#define REG_GPIO_IMR1A 0x1C +#define REG_GPIO_IMR2A 0x1D +#define REG_GPIO_IMR3A 0x1E +#define REG_GPIO_ISR1B 0x1F +#define REG_GPIO_ISR2B 0x20 +#define REG_GPIO_ISR3B 0x21 +#define REG_GPIO_IMR1B 0x22 +#define REG_GPIO_IMR2B 0x23 +#define REG_GPIO_IMR3B 0x24 +#define REG_GPIO_EDR1 0x28 +#define REG_GPIO_EDR2 0x29 +#define REG_GPIO_EDR3 0x2A +#define REG_GPIO_EDR4 0x2B +#define REG_GPIO_EDR5 0x2C +#define REG_GPIO_SIH_CTRL 0x2D + +/* Up to 18 signals are available as GPIOs, when their + * pins are not assigned to another use (such as ULPI/USB). + */ +#define TWL4030_GPIO_MAX 18 + +/*----------------------------------------------------------------------*/ + +/* + * Keypad register offsets (use TWL4030_MODULE_KEYPAD) + * ... SIH/interrupt only + */ + +#define TWL4030_KEYPAD_KEYP_ISR1 0x11 +#define TWL4030_KEYPAD_KEYP_IMR1 0x12 +#define TWL4030_KEYPAD_KEYP_ISR2 0x13 +#define TWL4030_KEYPAD_KEYP_IMR2 0x14 +#define TWL4030_KEYPAD_KEYP_SIR 0x15 /* test register */ +#define TWL4030_KEYPAD_KEYP_EDR 0x16 +#define TWL4030_KEYPAD_KEYP_SIH_CTRL 0x17 + +/*----------------------------------------------------------------------*/ + +/* + * Multichannel ADC register offsets (use TWL4030_MODULE_MADC) + * ... SIH/interrupt only + */ + +#define TWL4030_MADC_ISR1 0x61 +#define TWL4030_MADC_IMR1 0x62 +#define TWL4030_MADC_ISR2 0x63 +#define TWL4030_MADC_IMR2 0x64 +#define TWL4030_MADC_SIR 0x65 /* test register */ +#define TWL4030_MADC_EDR 0x66 +#define TWL4030_MADC_SIH_CTRL 0x67 + +/*----------------------------------------------------------------------*/ + +/* + * Battery charger register offsets (use TWL4030_MODULE_INTERRUPTS) + */ + +#define TWL4030_INTERRUPTS_BCIISR1A 0x0 +#define TWL4030_INTERRUPTS_BCIISR2A 0x1 +#define TWL4030_INTERRUPTS_BCIIMR1A 0x2 +#define TWL4030_INTERRUPTS_BCIIMR2A 0x3 +#define TWL4030_INTERRUPTS_BCIISR1B 0x4 +#define TWL4030_INTERRUPTS_BCIISR2B 0x5 +#define TWL4030_INTERRUPTS_BCIIMR1B 0x6 +#define TWL4030_INTERRUPTS_BCIIMR2B 0x7 +#define TWL4030_INTERRUPTS_BCISIR1 0x8 /* test register */ +#define TWL4030_INTERRUPTS_BCISIR2 0x9 /* test register */ +#define TWL4030_INTERRUPTS_BCIEDR1 0xa +#define TWL4030_INTERRUPTS_BCIEDR2 0xb +#define TWL4030_INTERRUPTS_BCIEDR3 0xc +#define TWL4030_INTERRUPTS_BCISIHCTRL 0xd + +/*----------------------------------------------------------------------*/ + +/* + * Power Interrupt block register offsets (use TWL4030_MODULE_INT) + */ + +#define TWL4030_INT_PWR_ISR1 0x0 +#define TWL4030_INT_PWR_IMR1 0x1 +#define TWL4030_INT_PWR_ISR2 0x2 +#define TWL4030_INT_PWR_IMR2 0x3 +#define TWL4030_INT_PWR_SIR 0x4 /* test register */ +#define TWL4030_INT_PWR_EDR1 0x5 +#define TWL4030_INT_PWR_EDR2 0x6 +#define TWL4030_INT_PWR_SIH_CTRL 0x7 + +/*----------------------------------------------------------------------*/ + +struct twl4030_bci_platform_data { + int *battery_tmp_tbl; + unsigned int tblsize; +}; + +/* TWL4030_GPIO_MAX (18) GPIOs, with interrupts */ +struct twl4030_gpio_platform_data { + int gpio_base; + unsigned irq_base, irq_end; + + /* For gpio-N, bit (1 << N) in "pullups" is set if that pullup + * should be enabled. Else, if that bit is set in "pulldowns", + * that pulldown is enabled. Don't waste power by letting any + * digital inputs float... + */ + u32 pullups; + u32 pulldowns; + + int (*setup)(struct device *dev, + unsigned gpio, unsigned ngpio); + int (*teardown)(struct device *dev, + unsigned gpio, unsigned ngpio); +}; + +struct twl4030_madc_platform_data { + int irq_line; +}; + +struct twl4030_keypad_data { + int rows; + int cols; + int *keymap; + int irq; + unsigned int keymapsize; + unsigned int rep:1; +}; + +enum twl4030_usb_mode { + T2_USB_MODE_ULPI = 1, + T2_USB_MODE_CEA2011_3PIN = 2, +}; + +struct twl4030_usb_data { + enum twl4030_usb_mode usb_mode; +}; + +struct twl4030_platform_data { + unsigned irq_base, irq_end; + struct twl4030_bci_platform_data *bci; + struct twl4030_gpio_platform_data *gpio; + struct twl4030_madc_platform_data *madc; + struct twl4030_keypad_data *keypad; + struct twl4030_usb_data *usb; + + /* REVISIT more to come ... _nothing_ should be hard-wired */ +}; + +/*----------------------------------------------------------------------*/ + +/* + * FIXME completely stop using TWL4030_IRQ_BASE ... instead, pass the + * IRQ data to subsidiary devices using platform device resources. + */ + +/* IRQ information-need base */ +#include +/* TWL4030 interrupts */ + +/* #define TWL4030_MODIRQ_GPIO (TWL4030_IRQ_BASE + 0) */ +#define TWL4030_MODIRQ_KEYPAD (TWL4030_IRQ_BASE + 1) +#define TWL4030_MODIRQ_BCI (TWL4030_IRQ_BASE + 2) +#define TWL4030_MODIRQ_MADC (TWL4030_IRQ_BASE + 3) +/* #define TWL4030_MODIRQ_USB (TWL4030_IRQ_BASE + 4) */ +#define TWL4030_MODIRQ_PWR (TWL4030_IRQ_BASE + 5) + +#define TWL4030_PWRIRQ_PWRBTN (TWL4030_PWR_IRQ_BASE + 0) +#define TWL4030_PWRIRQ_CHG_PRES (TWL4030_PWR_IRQ_BASE + 1) +#define TWL4030_PWRIRQ_USB_PRES (TWL4030_PWR_IRQ_BASE + 2) +#define TWL4030_PWRIRQ_RTC (TWL4030_PWR_IRQ_BASE + 3) +#define TWL4030_PWRIRQ_HOT_DIE (TWL4030_PWR_IRQ_BASE + 4) +#define TWL4030_PWRIRQ_PWROK_TIMEOUT (TWL4030_PWR_IRQ_BASE + 5) +#define TWL4030_PWRIRQ_MBCHG (TWL4030_PWR_IRQ_BASE + 6) +#define TWL4030_PWRIRQ_SC_DETECT (TWL4030_PWR_IRQ_BASE + 7) + +/* Rest are unsued currently*/ + +/* Offsets to Power Registers */ +#define TWL4030_VDAC_DEV_GRP 0x3B +#define TWL4030_VDAC_DEDICATED 0x3E +#define TWL4030_VAUX1_DEV_GRP 0x17 +#define TWL4030_VAUX1_DEDICATED 0x1A +#define TWL4030_VAUX2_DEV_GRP 0x1B +#define TWL4030_VAUX2_DEDICATED 0x1E +#define TWL4030_VAUX3_DEV_GRP 0x1F +#define TWL4030_VAUX3_DEDICATED 0x22 + +/* TWL4030 GPIO interrupt definitions */ + +#define TWL4030_GPIO_IRQ_NO(n) (TWL4030_GPIO_IRQ_BASE + (n)) +#define TWL4030_GPIO_IS_ENABLE 1 + +/* + * Exported TWL4030 GPIO APIs + * + * WARNING -- use standard GPIO and IRQ calls instead; these will vanish. + */ +int twl4030_get_gpio_datain(int gpio); +int twl4030_request_gpio(int gpio); +int twl4030_set_gpio_debounce(int gpio, int enable); +int twl4030_free_gpio(int gpio); + +#if defined(CONFIG_TWL4030_BCI_BATTERY) || \ + defined(CONFIG_TWL4030_BCI_BATTERY_MODULE) + extern int twl4030charger_usb_en(int enable); +#else + static inline int twl4030charger_usb_en(int enable) { return 0; } +#endif + +#endif /* End of __TWL4030_H */ -- cgit v1.2.1 From 26b8f5e1e2d1229c186d8e61d26513c43a058c5e Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 15 Oct 2008 12:20:06 +0200 Subject: mfd: add base support for Dialog DA9030/DA9034 PMICs DA9030 (a.k.a ARAVA) and DA9034 (a.k.a MICCO) are PMICs designed by Dialog Semiconductor, usually found on PXA-based platforms. These PMICs are I2C-based, multi-function devices, usually with LEDs, PWMs for backlight, BUCKs and LDOs, ADCs and touchscreen controller (on DA9034). This is the base support for the I2C operations, event registration and handling, sub-devices management. Signed-off-by: Mike Rapoport Signed-off-by: Eric Miao Signed-off-by: Liam Girdwood Signed-off-by: Samuel Ortiz --- include/linux/mfd/da903x.h | 201 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 201 insertions(+) create mode 100644 include/linux/mfd/da903x.h (limited to 'include') diff --git a/include/linux/mfd/da903x.h b/include/linux/mfd/da903x.h new file mode 100644 index 000000000000..cad314c12439 --- /dev/null +++ b/include/linux/mfd/da903x.h @@ -0,0 +1,201 @@ +#ifndef __LINUX_PMIC_DA903X_H +#define __LINUX_PMIC_DA903X_H + +/* Unified sub device IDs for DA9030/DA9034 */ +enum { + DA9030_ID_LED_1, + DA9030_ID_LED_2, + DA9030_ID_LED_3, + DA9030_ID_LED_4, + DA9030_ID_LED_PC, + DA9030_ID_VIBRA, + DA9030_ID_WLED, + DA9030_ID_BUCK1, + DA9030_ID_BUCK2, + DA9030_ID_LDO1, + DA9030_ID_LDO2, + DA9030_ID_LDO3, + DA9030_ID_LDO4, + DA9030_ID_LDO5, + DA9030_ID_LDO6, + DA9030_ID_LDO7, + DA9030_ID_LDO8, + DA9030_ID_LDO9, + DA9030_ID_LDO10, + DA9030_ID_LDO11, + DA9030_ID_LDO12, + DA9030_ID_LDO13, + DA9030_ID_LDO14, + DA9030_ID_LDO15, + DA9030_ID_LDO16, + DA9030_ID_LDO17, + DA9030_ID_LDO18, + DA9030_ID_LDO19, + DA9030_ID_LDO_INT, /* LDO Internal */ + + DA9034_ID_LED_1, + DA9034_ID_LED_2, + DA9034_ID_VIBRA, + DA9034_ID_WLED, + DA9034_ID_TOUCH, + + DA9034_ID_BUCK1, + DA9034_ID_BUCK2, + DA9034_ID_LDO1, + DA9034_ID_LDO2, + DA9034_ID_LDO3, + DA9034_ID_LDO4, + DA9034_ID_LDO5, + DA9034_ID_LDO6, + DA9034_ID_LDO7, + DA9034_ID_LDO8, + DA9034_ID_LDO9, + DA9034_ID_LDO10, + DA9034_ID_LDO11, + DA9034_ID_LDO12, + DA9034_ID_LDO13, + DA9034_ID_LDO14, + DA9034_ID_LDO15, +}; + +/* + * DA9030/DA9034 LEDs sub-devices uses generic "struct led_info" + * as the platform_data + */ + +/* DA9030 flags for "struct led_info" + */ +#define DA9030_LED_RATE_ON (0 << 5) +#define DA9030_LED_RATE_052S (1 << 5) +#define DA9030_LED_DUTY_1_16 (0 << 3) +#define DA9030_LED_DUTY_1_8 (1 << 3) +#define DA9030_LED_DUTY_1_4 (2 << 3) +#define DA9030_LED_DUTY_1_2 (3 << 3) + +#define DA9030_VIBRA_MODE_1P3V (0 << 1) +#define DA9030_VIBRA_MODE_2P7V (1 << 1) +#define DA9030_VIBRA_FREQ_1HZ (0 << 2) +#define DA9030_VIBRA_FREQ_2HZ (1 << 2) +#define DA9030_VIBRA_FREQ_4HZ (2 << 2) +#define DA9030_VIBRA_FREQ_8HZ (3 << 2) +#define DA9030_VIBRA_DUTY_ON (0 << 4) +#define DA9030_VIBRA_DUTY_75P (1 << 4) +#define DA9030_VIBRA_DUTY_50P (2 << 4) +#define DA9030_VIBRA_DUTY_25P (3 << 4) + +/* DA9034 flags for "struct led_info" */ +#define DA9034_LED_RAMP (1 << 7) + +/* DA9034 touch screen platform data */ +struct da9034_touch_pdata { + int interval_ms; /* sampling interval while pen down */ + int x_inverted; + int y_inverted; +}; + +struct da903x_subdev_info { + int id; + const char *name; + void *platform_data; +}; + +struct da903x_platform_data { + int num_subdevs; + struct da903x_subdev_info *subdevs; +}; + +/* bit definitions for DA9030 events */ +#define DA9030_EVENT_ONKEY (1 << 0) +#define DA9030_EVENT_PWREN (1 << 1) +#define DA9030_EVENT_EXTON (1 << 2) +#define DA9030_EVENT_CHDET (1 << 3) +#define DA9030_EVENT_TBAT (1 << 4) +#define DA9030_EVENT_VBATMON (1 << 5) +#define DA9030_EVENT_VBATMON_TXON (1 << 6) +#define DA9030_EVENT_CHIOVER (1 << 7) +#define DA9030_EVENT_TCTO (1 << 8) +#define DA9030_EVENT_CCTO (1 << 9) +#define DA9030_EVENT_ADC_READY (1 << 10) +#define DA9030_EVENT_VBUS_4P4 (1 << 11) +#define DA9030_EVENT_VBUS_4P0 (1 << 12) +#define DA9030_EVENT_SESS_VALID (1 << 13) +#define DA9030_EVENT_SRP_DETECT (1 << 14) +#define DA9030_EVENT_WATCHDOG (1 << 15) +#define DA9030_EVENT_LDO15 (1 << 16) +#define DA9030_EVENT_LDO16 (1 << 17) +#define DA9030_EVENT_LDO17 (1 << 18) +#define DA9030_EVENT_LDO18 (1 << 19) +#define DA9030_EVENT_LDO19 (1 << 20) +#define DA9030_EVENT_BUCK2 (1 << 21) + +/* bit definitions for DA9034 events */ +#define DA9034_EVENT_ONKEY (1 << 0) +#define DA9034_EVENT_EXTON (1 << 2) +#define DA9034_EVENT_CHDET (1 << 3) +#define DA9034_EVENT_TBAT (1 << 4) +#define DA9034_EVENT_VBATMON (1 << 5) +#define DA9034_EVENT_REV_IOVER (1 << 6) +#define DA9034_EVENT_CH_IOVER (1 << 7) +#define DA9034_EVENT_CH_TCTO (1 << 8) +#define DA9034_EVENT_CH_CCTO (1 << 9) +#define DA9034_EVENT_USB_DEV (1 << 10) +#define DA9034_EVENT_OTGCP_IOVER (1 << 11) +#define DA9034_EVENT_VBUS_4P55 (1 << 12) +#define DA9034_EVENT_VBUS_3P8 (1 << 13) +#define DA9034_EVENT_SESS_1P8 (1 << 14) +#define DA9034_EVENT_SRP_READY (1 << 15) +#define DA9034_EVENT_ADC_MAN (1 << 16) +#define DA9034_EVENT_ADC_AUTO4 (1 << 17) +#define DA9034_EVENT_ADC_AUTO5 (1 << 18) +#define DA9034_EVENT_ADC_AUTO6 (1 << 19) +#define DA9034_EVENT_PEN_DOWN (1 << 20) +#define DA9034_EVENT_TSI_READY (1 << 21) +#define DA9034_EVENT_UART_TX (1 << 22) +#define DA9034_EVENT_UART_RX (1 << 23) +#define DA9034_EVENT_HEADSET (1 << 25) +#define DA9034_EVENT_HOOKSWITCH (1 << 26) +#define DA9034_EVENT_WATCHDOG (1 << 27) + +extern int da903x_register_notifier(struct device *dev, + struct notifier_block *nb, unsigned int events); +extern int da903x_unregister_notifier(struct device *dev, + struct notifier_block *nb, unsigned int events); + +/* Status Query Interface */ +#define DA9030_STATUS_ONKEY (1 << 0) +#define DA9030_STATUS_PWREN1 (1 << 1) +#define DA9030_STATUS_EXTON (1 << 2) +#define DA9030_STATUS_CHDET (1 << 3) +#define DA9030_STATUS_TBAT (1 << 4) +#define DA9030_STATUS_VBATMON (1 << 5) +#define DA9030_STATUS_VBATMON_TXON (1 << 6) +#define DA9030_STATUS_MCLKDET (1 << 7) + +#define DA9034_STATUS_ONKEY (1 << 0) +#define DA9034_STATUS_EXTON (1 << 2) +#define DA9034_STATUS_CHDET (1 << 3) +#define DA9034_STATUS_TBAT (1 << 4) +#define DA9034_STATUS_VBATMON (1 << 5) +#define DA9034_STATUS_PEN_DOWN (1 << 6) +#define DA9034_STATUS_MCLKDET (1 << 7) +#define DA9034_STATUS_USB_DEV (1 << 8) +#define DA9034_STATUS_HEADSET (1 << 9) +#define DA9034_STATUS_HOOKSWITCH (1 << 10) +#define DA9034_STATUS_REMCON (1 << 11) +#define DA9034_STATUS_VBUS_VALID_4P55 (1 << 12) +#define DA9034_STATUS_VBUS_VALID_3P8 (1 << 13) +#define DA9034_STATUS_SESS_VALID_1P8 (1 << 14) +#define DA9034_STATUS_SRP_READY (1 << 15) + +extern int da903x_query_status(struct device *dev, unsigned int status); + + +/* NOTE: the two functions below are not intended for use outside + * of the DA9034 sub-device drivers + */ +extern int da903x_write(struct device *dev, int reg, uint8_t val); +extern int da903x_read(struct device *dev, int reg, uint8_t *val); +extern int da903x_update(struct device *dev, int reg, uint8_t val, uint8_t mask); +extern int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask); +extern int da903x_clr_bits(struct device *dev, int reg, uint8_t bit_mask); +#endif /* __LINUX_PMIC_DA903X_H */ -- cgit v1.2.1 From 7acb706ca97fce84bda4a902a33de2f3dae10260 Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Thu, 9 Oct 2008 20:06:09 +0200 Subject: mfd: update TMIO drivers to use the clock API This patch updates the remaining two TMIO drivers to use the clock API rather than callback hooks into platform code. Signed-off-by: Ian Molton Signed-off-by: Samuel Ortiz --- include/linux/mfd/t7l66xb.h | 2 -- include/linux/mfd/tc6387xb.h | 3 --- 2 files changed, 5 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/t7l66xb.h b/include/linux/mfd/t7l66xb.h index e83c7f2036f9..b4629818aea5 100644 --- a/include/linux/mfd/t7l66xb.h +++ b/include/linux/mfd/t7l66xb.h @@ -15,8 +15,6 @@ #include struct t7l66xb_platform_data { - int (*enable_clk32k)(struct platform_device *dev); - void (*disable_clk32k)(struct platform_device *dev); int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); int (*suspend)(struct platform_device *dev); diff --git a/include/linux/mfd/tc6387xb.h b/include/linux/mfd/tc6387xb.h index fa06e0610b8e..b4888209494a 100644 --- a/include/linux/mfd/tc6387xb.h +++ b/include/linux/mfd/tc6387xb.h @@ -11,9 +11,6 @@ #define MFD_TC6387XB_H struct tc6387xb_platform_data { - int (*enable_clk32k)(struct platform_device *dev); - void (*disable_clk32k)(struct platform_device *dev); - int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); int (*suspend)(struct platform_device *dev); -- cgit v1.2.1 From 7994b1c55ec19238067a47f09b0463db3a48c33c Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 9 Oct 2008 18:47:27 +0900 Subject: video: remove unused sh_mobile_lcdc platform data Remove lddckr from the platform data, these days we calculate the register value from clock source and clock dividers anyway. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- include/video/sh_mobile_lcdc.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h index 130102f663f5..bfb42dbc5cc8 100644 --- a/include/video/sh_mobile_lcdc.h +++ b/include/video/sh_mobile_lcdc.h @@ -64,7 +64,6 @@ struct sh_mobile_lcdc_chan_cfg { }; struct sh_mobile_lcdc_info { - unsigned long lddckr; int clock_source; struct sh_mobile_lcdc_chan_cfg ch[2]; }; -- cgit v1.2.1 From f400f510df4e29bd00ffe07981ec703070cb9e19 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 9 Oct 2008 18:48:16 +0900 Subject: video: add sh_mobile_lcdc platform flags Add platform data flags for detailed lcd display configuration. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- include/video/sh_mobile_lcdc.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h index bfb42dbc5cc8..1a4bc6ada606 100644 --- a/include/video/sh_mobile_lcdc.h +++ b/include/video/sh_mobile_lcdc.h @@ -28,6 +28,12 @@ enum { LCDC_CHAN_DISABLED = 0, enum { LCDC_CLK_BUS, LCDC_CLK_PERIPHERAL, LCDC_CLK_EXTERNAL }; +#define LCDC_FLAGS_DWPOL (1 << 0) /* Rising edge dot clock data latch */ +#define LCDC_FLAGS_DIPOL (1 << 1) /* Active low display enable polarity */ +#define LCDC_FLAGS_DAPOL (1 << 2) /* Active low display data polarity */ +#define LCDC_FLAGS_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */ +#define LCDC_FLAGS_DWCNT (1 << 4) /* Disable dotclock during blanking */ + struct sh_mobile_lcdc_sys_bus_cfg { unsigned long ldmt2r; unsigned long ldmt3r; @@ -57,6 +63,7 @@ struct sh_mobile_lcdc_chan_cfg { int bpp; int interface_type; /* selects RGBn or SYSn I/F, see above */ int clock_divider; + unsigned long flags; /* LCDC_FLAGS_... */ struct fb_videomode lcd_cfg; struct sh_mobile_lcdc_lcd_size_cfg lcd_size_cfg; struct sh_mobile_lcdc_board_cfg board_cfg; -- cgit v1.2.1 From 10a03a42d140a029bcba531df2897839f3569871 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 20 Oct 2008 03:31:54 -0700 Subject: netfilter: netns: use NFPROTO_NUMPROTO instead of NUMPROTO for tables array The netfilter families have been decoupled from regular protocol families. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/net/netns/x_tables.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h index 0cb63ed2c1fc..b8093971ccb4 100644 --- a/include/net/netns/x_tables.h +++ b/include/net/netns/x_tables.h @@ -2,9 +2,9 @@ #define __NETNS_X_TABLES_H #include -#include +#include struct netns_xt { - struct list_head tables[NPROTO]; + struct list_head tables[NFPROTO_NUMPROTO]; }; #endif -- cgit v1.2.1 From 62695a84eb8f2e718bf4dfb21700afaa7a08e0ea Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:26:09 -0700 Subject: vmscan: move isolate_lru_page() to vmscan.c On large memory systems, the VM can spend way too much time scanning through pages that it cannot (or should not) evict from memory. Not only does it use up CPU time, but it also provokes lock contention and can leave large systems under memory presure in a catatonic state. This patch series improves VM scalability by: 1) putting filesystem backed, swap backed and unevictable pages onto their own LRUs, so the system only scans the pages that it can/should evict from memory 2) switching to two handed clock replacement for the anonymous LRUs, so the number of pages that need to be scanned when the system starts swapping is bound to a reasonable number 3) keeping unevictable pages off the LRU completely, so the VM does not waste CPU time scanning them. ramfs, ramdisk, SHM_LOCKED shared memory segments and mlock()ed VMA pages are keept on the unevictable list. This patch: isolate_lru_page logically belongs to be in vmscan.c than migrate.c. It is tough, because we don't need that function without memory migration so there is a valid argument to have it in migrate.c. However a subsequent patch needs to make use of it in the core mm, so we can happily move it to vmscan.c. Also, make the function a little more generic by not requiring that it adds an isolated page to a given list. Callers can do that. Note that we now have '__isolate_lru_page()', that does something quite different, visible outside of vmscan.c for use with memory controller. Methinks we need to rationalize these names/purposes. --lts [akpm@linux-foundation.org: fix mm/memory_hotplug.c build] Signed-off-by: Nick Piggin Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/migrate.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 03aea612d284..3f34005068d4 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -7,7 +7,6 @@ typedef struct page *new_page_t(struct page *, unsigned long private, int **); #ifdef CONFIG_MIGRATION -extern int isolate_lru_page(struct page *p, struct list_head *pagelist); extern int putback_lru_pages(struct list_head *l); extern int migrate_page(struct address_space *, struct page *, struct page *); @@ -21,8 +20,6 @@ extern int migrate_vmas(struct mm_struct *mm, const nodemask_t *from, const nodemask_t *to, unsigned long flags); #else -static inline int isolate_lru_page(struct page *p, struct list_head *list) - { return -ENOSYS; } static inline int putback_lru_pages(struct list_head *l) { return 0; } static inline int migrate_pages(struct list_head *l, new_page_t x, unsigned long private) { return -ENOSYS; } -- cgit v1.2.1 From b69408e88bd86b98feb7b9a38fd865e1ddb29827 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sat, 18 Oct 2008 20:26:14 -0700 Subject: vmscan: Use an indexed array for LRU variables Currently we are defining explicit variables for the inactive and active list. An indexed array can be more generic and avoid repeating similar code in several places in the reclaim code. We are saving a few bytes in terms of code size: Before: text data bss dec hex filename 4097753 573120 4092484 8763357 85b7dd vmlinux After: text data bss dec hex filename 4097729 573120 4092484 8763333 85b7c5 vmlinux Having an easy way to add new lru lists may ease future work on the reclaim code. Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Signed-off-by: Christoph Lameter Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 17 +++++----------- include/linux/mm_inline.h | 49 +++++++++++++++++++++++++++++++++++----------- include/linux/mmzone.h | 26 ++++++++++++++++++------ 3 files changed, 63 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index fdf3967e1397..a6ac0d491fe6 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -69,10 +69,8 @@ extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem, extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, int priority); -extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem, - struct zone *zone, int priority); -extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, - struct zone *zone, int priority); +extern long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone, + int priority, enum lru_list lru); #else /* CONFIG_CGROUP_MEM_RES_CTLR */ static inline void page_reset_bad_cgroup(struct page *page) @@ -159,14 +157,9 @@ static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, { } -static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem, - struct zone *zone, int priority) -{ - return 0; -} - -static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, - struct zone *zone, int priority) +static inline long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, + struct zone *zone, int priority, + enum lru_list lru) { return 0; } diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 895bc4e93039..2704729777ef 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -1,40 +1,67 @@ +static inline void +add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list l) +{ + list_add(&page->lru, &zone->lru[l].list); + __inc_zone_state(zone, NR_LRU_BASE + l); +} + +static inline void +del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l) +{ + list_del(&page->lru); + __dec_zone_state(zone, NR_LRU_BASE + l); +} + static inline void add_page_to_active_list(struct zone *zone, struct page *page) { - list_add(&page->lru, &zone->active_list); - __inc_zone_state(zone, NR_ACTIVE); + add_page_to_lru_list(zone, page, LRU_ACTIVE); } static inline void add_page_to_inactive_list(struct zone *zone, struct page *page) { - list_add(&page->lru, &zone->inactive_list); - __inc_zone_state(zone, NR_INACTIVE); + add_page_to_lru_list(zone, page, LRU_INACTIVE); } static inline void del_page_from_active_list(struct zone *zone, struct page *page) { - list_del(&page->lru); - __dec_zone_state(zone, NR_ACTIVE); + del_page_from_lru_list(zone, page, LRU_ACTIVE); } static inline void del_page_from_inactive_list(struct zone *zone, struct page *page) { - list_del(&page->lru); - __dec_zone_state(zone, NR_INACTIVE); + del_page_from_lru_list(zone, page, LRU_INACTIVE); } static inline void del_page_from_lru(struct zone *zone, struct page *page) { + enum lru_list l = LRU_INACTIVE; + list_del(&page->lru); if (PageActive(page)) { __ClearPageActive(page); - __dec_zone_state(zone, NR_ACTIVE); - } else { - __dec_zone_state(zone, NR_INACTIVE); + l = LRU_ACTIVE; } + __dec_zone_state(zone, NR_LRU_BASE + l); } +/** + * page_lru - which LRU list should a page be on? + * @page: the page to test + * + * Returns the LRU list a page should be on, as an index + * into the array of LRU lists. + */ +static inline enum lru_list page_lru(struct page *page) +{ + enum lru_list lru = LRU_BASE; + + if (PageActive(page)) + lru += LRU_ACTIVE; + + return lru; +} diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 428328a05fa1..156e18f3919b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -81,8 +81,9 @@ struct zone_padding { enum zone_stat_item { /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, - NR_INACTIVE, - NR_ACTIVE, + NR_LRU_BASE, + NR_INACTIVE = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */ + NR_ACTIVE, /* " " " " " */ NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ @@ -107,6 +108,19 @@ enum zone_stat_item { #endif NR_VM_ZONE_STAT_ITEMS }; +enum lru_list { + LRU_BASE, + LRU_INACTIVE=LRU_BASE, /* must match order of NR_[IN]ACTIVE */ + LRU_ACTIVE, /* " " " " " */ + NR_LRU_LISTS }; + +#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) + +static inline int is_active_lru(enum lru_list l) +{ + return (l == LRU_ACTIVE); +} + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ @@ -251,10 +265,10 @@ struct zone { /* Fields commonly accessed by the page reclaim scanner */ spinlock_t lru_lock; - struct list_head active_list; - struct list_head inactive_list; - unsigned long nr_scan_active; - unsigned long nr_scan_inactive; + struct { + struct list_head list; + unsigned long nr_scan; + } lru[NR_LRU_LISTS]; unsigned long pages_scanned; /* since last reclaim */ unsigned long flags; /* zone flags, see below */ -- cgit v1.2.1 From f04e9ebbe4909f9a41efd55149bc353299f4e83b Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Sat, 18 Oct 2008 20:26:19 -0700 Subject: swap: use an array for the LRU pagevecs Turn the pagevecs into an array just like the LRUs. This significantly cleans up the source code and reduces the size of the kernel by about 13kB after all the LRU lists have been created further down in the split VM patch series. Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagevec.h | 13 +++++++++++-- include/linux/swap.h | 18 ++++++++++++++++-- 2 files changed, 27 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 8eb7fa76c1d0..6b8f11bcc948 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -23,8 +23,7 @@ struct pagevec { void __pagevec_release(struct pagevec *pvec); void __pagevec_release_nonlru(struct pagevec *pvec); void __pagevec_free(struct pagevec *pvec); -void __pagevec_lru_add(struct pagevec *pvec); -void __pagevec_lru_add_active(struct pagevec *pvec); +void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru); void pagevec_strip(struct pagevec *pvec); unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping, pgoff_t start, unsigned nr_pages); @@ -81,6 +80,16 @@ static inline void pagevec_free(struct pagevec *pvec) __pagevec_free(pvec); } +static inline void __pagevec_lru_add(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_INACTIVE); +} + +static inline void __pagevec_lru_add_active(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_ACTIVE); +} + static inline void pagevec_lru_add(struct pagevec *pvec) { if (pagevec_count(pvec)) diff --git a/include/linux/swap.h b/include/linux/swap.h index de40f169a4e4..fcc169610d09 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -171,8 +171,8 @@ extern unsigned int nr_free_pagecache_pages(void); /* linux/mm/swap.c */ -extern void lru_cache_add(struct page *); -extern void lru_cache_add_active(struct page *); +extern void __lru_cache_add(struct page *, enum lru_list lru); +extern void lru_cache_add_lru(struct page *, enum lru_list lru); extern void activate_page(struct page *); extern void mark_page_accessed(struct page *); extern void lru_add_drain(void); @@ -180,6 +180,20 @@ extern int lru_add_drain_all(void); extern void rotate_reclaimable_page(struct page *page); extern void swap_setup(void); +/** + * lru_cache_add: add a page to the page lists + * @page: the page to add + */ +static inline void lru_cache_add(struct page *page) +{ + __lru_cache_add(page, LRU_INACTIVE); +} + +static inline void lru_cache_add_active(struct page *page) +{ + __lru_cache_add(page, LRU_ACTIVE); +} + /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask); -- cgit v1.2.1 From 68a22394c286a2daf06ee8d65d8835f738faefa5 Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Sat, 18 Oct 2008 20:26:23 -0700 Subject: vmscan: free swap space on swap-in/activation If vm_swap_full() (swap space more than 50% full), the system will free swap space at swapin time. With this patch, the system will also free the swap space in the pageout code, when we decide that the page is not a candidate for swapout (and just wasting swap space). Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Signed-off-by: MinChan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagevec.h | 1 + include/linux/swap.h | 6 ++++++ 2 files changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 6b8f11bcc948..fea3a982ee55 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -25,6 +25,7 @@ void __pagevec_release_nonlru(struct pagevec *pvec); void __pagevec_free(struct pagevec *pvec); void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru); void pagevec_strip(struct pagevec *pvec); +void pagevec_swap_free(struct pagevec *pvec); unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping, pgoff_t start, unsigned nr_pages); unsigned pagevec_lookup_tag(struct pagevec *pvec, diff --git a/include/linux/swap.h b/include/linux/swap.h index fcc169610d09..833be56ad835 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -265,6 +265,7 @@ extern sector_t swapdev_block(int, pgoff_t); extern struct swap_info_struct *get_swap_info_struct(unsigned); extern int can_share_swap_page(struct page *); extern int remove_exclusive_swap_page(struct page *); +extern int remove_exclusive_swap_page_ref(struct page *); struct backing_dev_info; /* linux/mm/thrash.c */ @@ -353,6 +354,11 @@ static inline int remove_exclusive_swap_page(struct page *p) return 0; } +static inline int remove_exclusive_swap_page_ref(struct page *page) +{ + return 0; +} + static inline swp_entry_t get_swap_page(void) { swp_entry_t entry; -- cgit v1.2.1 From b2e185384f534781fd22f5ce170b2ad26f97df70 Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Sat, 18 Oct 2008 20:26:30 -0700 Subject: define page_file_cache() function Define page_file_cache() function to answer the question: is page backed by a file? Originally part of Rik van Riel's split-lru patch. Extracted to make available for other, independent reclaim patches. Moved inline function to linux/mm_inline.h where it will be needed by subsequent "split LRU" and "noreclaim" patches. Unfortunately this needs to use a page flag, since the PG_swapbacked state needs to be preserved all the way to the point where the page is last removed from the LRU. Trying to derive the status from other info in the page resulted in wrong VM statistics in earlier split VM patchsets. The total number of page flags in use on a 32 bit machine after this patch is 19. [akpm@linux-foundation.org: fix up out-of-order merge fallout] [hugh@veritas.com: splitlru: shmem_getpage SetPageSwapBacked sooner[ Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Signed-off-by: MinChan Kim Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_inline.h | 27 +++++++++++++++++++++++++++ include/linux/page-flags.h | 8 ++++++-- 2 files changed, 33 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 2704729777ef..96e970485b6c 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -1,3 +1,28 @@ +#ifndef LINUX_MM_INLINE_H +#define LINUX_MM_INLINE_H + +/** + * page_is_file_cache - should the page be on a file LRU or anon LRU? + * @page: the page to test + * + * Returns !0 if @page is page cache page backed by a regular filesystem, + * or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed. + * Used by functions that manipulate the LRU lists, to sort a page + * onto the right LRU list. + * + * We would like to get this info without a page flag, but the state + * needs to survive until the page is last deleted from the LRU, which + * could be as far down as __page_cache_release. + */ +static inline int page_is_file_cache(struct page *page) +{ + if (PageSwapBacked(page)) + return 0; + + /* The page is page cache backed by a normal filesystem. */ + return 1; +} + static inline void add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list l) { @@ -65,3 +90,5 @@ static inline enum lru_list page_lru(struct page *page) return lru; } + +#endif diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index c74d3e875314..57b688cfb5e2 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -93,6 +93,7 @@ enum pageflags { PG_mappedtodisk, /* Has blocks allocated on-disk */ PG_reclaim, /* To be reclaimed asap */ PG_buddy, /* Page is free, on buddy lists */ + PG_swapbacked, /* Page is backed by RAM/swap */ #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ #endif @@ -176,6 +177,7 @@ PAGEFLAG(SavePinned, savepinned); /* Xen */ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) +PAGEFLAG(SwapBacked, swapbacked) __CLEARPAGEFLAG(SwapBacked, swapbacked) __PAGEFLAG(SlobPage, slob_page) __PAGEFLAG(SlobFree, slob_free) @@ -334,7 +336,8 @@ static inline void __ClearPageTail(struct page *page) * Flags checked in bad_page(). Pages on the free list should not have * these flags set. It they are, there is a problem. */ -#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | 1 << PG_reclaim | 1 << PG_dirty) +#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | \ + 1 << PG_reclaim | 1 << PG_dirty | 1 << PG_swapbacked) /* * Flags checked when a page is freed. Pages being freed should not have @@ -347,7 +350,8 @@ static inline void __ClearPageTail(struct page *page) * Pages being prepped should not have these flags set. It they are, there * is a problem. */ -#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | 1 << PG_reserved | 1 << PG_dirty) +#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | \ + 1 << PG_reserved | 1 << PG_dirty | 1 << PG_swapbacked) #endif /* !__GENERATING_BOUNDS_H */ #endif /* PAGE_FLAGS_H */ -- cgit v1.2.1 From 4f98a2fee8acdb4ac84545df98cccecfd130f8db Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Sat, 18 Oct 2008 20:26:32 -0700 Subject: vmscan: split LRU lists into anon & file sets Split the LRU lists in two, one set for pages that are backed by real file systems ("file") and one for pages that are backed by memory and swap ("anon"). The latter includes tmpfs. The advantage of doing this is that the VM will not have to scan over lots of anonymous pages (which we generally do not want to swap out), just to find the page cache pages that it should evict. This patch has the infrastructure and a basic policy to balance how much we scan the anon lists and how much we scan the file lists. The big policy changes are in separate patches. [lee.schermerhorn@hp.com: collect lru meminfo statistics from correct offset] [kosaki.motohiro@jp.fujitsu.com: prevent incorrect oom under split_lru] [kosaki.motohiro@jp.fujitsu.com: fix pagevec_move_tail() doesn't treat unevictable page] [hugh@veritas.com: memcg swapbacked pages active] [hugh@veritas.com: splitlru: BDI_CAP_SWAP_BACKED] [akpm@linux-foundation.org: fix /proc/vmstat units] [nishimura@mxp.nes.nec.co.jp: memcg: fix handling of shmem migration] [kosaki.motohiro@jp.fujitsu.com: adjust Quicklists field of /proc/meminfo] [kosaki.motohiro@jp.fujitsu.com: fix style issue of get_scan_ratio()] Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Signed-off-by: KOSAKI Motohiro Signed-off-by: Hugh Dickins Signed-off-by: Daisuke Nishimura Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/backing-dev.h | 13 ++++++++++++ include/linux/memcontrol.h | 2 +- include/linux/mm_inline.h | 50 ++++++++++++++++++++++++++++++++++----------- include/linux/mmzone.h | 47 +++++++++++++++++++++++++++++++++++------- include/linux/pagevec.h | 29 ++++++++++++++++++++------ include/linux/swap.h | 20 +++++++++++++----- include/linux/vmstat.h | 10 +++++++++ 7 files changed, 140 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 0a24d5550eb3..bee52abb8a4d 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -175,6 +175,8 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); * BDI_CAP_READ_MAP: Can be mapped for reading * BDI_CAP_WRITE_MAP: Can be mapped for writing * BDI_CAP_EXEC_MAP: Can be mapped for execution + * + * BDI_CAP_SWAP_BACKED: Count shmem/tmpfs objects as swap-backed. */ #define BDI_CAP_NO_ACCT_DIRTY 0x00000001 #define BDI_CAP_NO_WRITEBACK 0x00000002 @@ -184,6 +186,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); #define BDI_CAP_WRITE_MAP 0x00000020 #define BDI_CAP_EXEC_MAP 0x00000040 #define BDI_CAP_NO_ACCT_WB 0x00000080 +#define BDI_CAP_SWAP_BACKED 0x00000100 #define BDI_CAP_VMFLAGS \ (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP) @@ -248,6 +251,11 @@ static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi) BDI_CAP_NO_WRITEBACK)); } +static inline bool bdi_cap_swap_backed(struct backing_dev_info *bdi) +{ + return bdi->capabilities & BDI_CAP_SWAP_BACKED; +} + static inline bool mapping_cap_writeback_dirty(struct address_space *mapping) { return bdi_cap_writeback_dirty(mapping->backing_dev_info); @@ -258,4 +266,9 @@ static inline bool mapping_cap_account_dirty(struct address_space *mapping) return bdi_cap_account_dirty(mapping->backing_dev_info); } +static inline bool mapping_cap_swap_backed(struct address_space *mapping) +{ + return bdi_cap_swap_backed(mapping->backing_dev_info); +} + #endif /* _LINUX_BACKING_DEV_H */ diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index a6ac0d491fe6..8d8f05c1515a 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -44,7 +44,7 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, unsigned long *scanned, int order, int mode, struct zone *z, struct mem_cgroup *mem_cont, - int active); + int active, int file); extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask); int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem); diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 96e970485b6c..2eb599465d56 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -5,7 +5,7 @@ * page_is_file_cache - should the page be on a file LRU or anon LRU? * @page: the page to test * - * Returns !0 if @page is page cache page backed by a regular filesystem, + * Returns LRU_FILE if @page is page cache page backed by a regular filesystem, * or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed. * Used by functions that manipulate the LRU lists, to sort a page * onto the right LRU list. @@ -20,7 +20,7 @@ static inline int page_is_file_cache(struct page *page) return 0; /* The page is page cache backed by a normal filesystem. */ - return 1; + return LRU_FILE; } static inline void @@ -38,39 +38,64 @@ del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l) } static inline void -add_page_to_active_list(struct zone *zone, struct page *page) +add_page_to_inactive_anon_list(struct zone *zone, struct page *page) { - add_page_to_lru_list(zone, page, LRU_ACTIVE); + add_page_to_lru_list(zone, page, LRU_INACTIVE_ANON); } static inline void -add_page_to_inactive_list(struct zone *zone, struct page *page) +add_page_to_active_anon_list(struct zone *zone, struct page *page) { - add_page_to_lru_list(zone, page, LRU_INACTIVE); + add_page_to_lru_list(zone, page, LRU_ACTIVE_ANON); } static inline void -del_page_from_active_list(struct zone *zone, struct page *page) +add_page_to_inactive_file_list(struct zone *zone, struct page *page) { - del_page_from_lru_list(zone, page, LRU_ACTIVE); + add_page_to_lru_list(zone, page, LRU_INACTIVE_FILE); } static inline void -del_page_from_inactive_list(struct zone *zone, struct page *page) +add_page_to_active_file_list(struct zone *zone, struct page *page) { - del_page_from_lru_list(zone, page, LRU_INACTIVE); + add_page_to_lru_list(zone, page, LRU_ACTIVE_FILE); +} + +static inline void +del_page_from_inactive_anon_list(struct zone *zone, struct page *page) +{ + del_page_from_lru_list(zone, page, LRU_INACTIVE_ANON); +} + +static inline void +del_page_from_active_anon_list(struct zone *zone, struct page *page) +{ + del_page_from_lru_list(zone, page, LRU_ACTIVE_ANON); +} + +static inline void +del_page_from_inactive_file_list(struct zone *zone, struct page *page) +{ + del_page_from_lru_list(zone, page, LRU_INACTIVE_FILE); +} + +static inline void +del_page_from_active_file_list(struct zone *zone, struct page *page) +{ + del_page_from_lru_list(zone, page, LRU_INACTIVE_FILE); } static inline void del_page_from_lru(struct zone *zone, struct page *page) { - enum lru_list l = LRU_INACTIVE; + enum lru_list l = LRU_BASE; list_del(&page->lru); if (PageActive(page)) { __ClearPageActive(page); - l = LRU_ACTIVE; + l += LRU_ACTIVE; } + l += page_is_file_cache(page); __dec_zone_state(zone, NR_LRU_BASE + l); } @@ -87,6 +112,7 @@ static inline enum lru_list page_lru(struct page *page) if (PageActive(page)) lru += LRU_ACTIVE; + lru += page_is_file_cache(page); return lru; } diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 156e18f3919b..59a4c8fd6ebd 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -82,21 +82,23 @@ enum zone_stat_item { /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, NR_LRU_BASE, - NR_INACTIVE = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */ - NR_ACTIVE, /* " " " " " */ + NR_INACTIVE_ANON = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */ + NR_ACTIVE_ANON, /* " " " " " */ + NR_INACTIVE_FILE, /* " " " " " */ + NR_ACTIVE_FILE, /* " " " " " */ NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ NR_FILE_PAGES, NR_FILE_DIRTY, NR_WRITEBACK, - /* Second 128 byte cacheline */ NR_SLAB_RECLAIMABLE, NR_SLAB_UNRECLAIMABLE, NR_PAGETABLE, /* used for pagetables */ NR_UNSTABLE_NFS, /* NFS unstable pages */ NR_BOUNCE, NR_VMSCAN_WRITE, + /* Second 128 byte cacheline */ NR_WRITEBACK_TEMP, /* Writeback using temporary buffers */ #ifdef CONFIG_NUMA NUMA_HIT, /* allocated in intended node */ @@ -108,17 +110,36 @@ enum zone_stat_item { #endif NR_VM_ZONE_STAT_ITEMS }; +/* + * We do arithmetic on the LRU lists in various places in the code, + * so it is important to keep the active lists LRU_ACTIVE higher in + * the array than the corresponding inactive lists, and to keep + * the *_FILE lists LRU_FILE higher than the corresponding _ANON lists. + * + * This has to be kept in sync with the statistics in zone_stat_item + * above and the descriptions in vmstat_text in mm/vmstat.c + */ +#define LRU_BASE 0 +#define LRU_ACTIVE 1 +#define LRU_FILE 2 + enum lru_list { - LRU_BASE, - LRU_INACTIVE=LRU_BASE, /* must match order of NR_[IN]ACTIVE */ - LRU_ACTIVE, /* " " " " " */ + LRU_INACTIVE_ANON = LRU_BASE, + LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE, + LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE, + LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE, NR_LRU_LISTS }; #define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) +static inline int is_file_lru(enum lru_list l) +{ + return (l == LRU_INACTIVE_FILE || l == LRU_ACTIVE_FILE); +} + static inline int is_active_lru(enum lru_list l) { - return (l == LRU_ACTIVE); + return (l == LRU_ACTIVE_ANON || l == LRU_ACTIVE_FILE); } struct per_cpu_pages { @@ -269,6 +290,18 @@ struct zone { struct list_head list; unsigned long nr_scan; } lru[NR_LRU_LISTS]; + + /* + * The pageout code in vmscan.c keeps track of how many of the + * mem/swap backed and file backed pages are refeferenced. + * The higher the rotated/scanned ratio, the more valuable + * that cache is. + * + * The anon LRU stats live in [0], file LRU stats in [1] + */ + unsigned long recent_rotated[2]; + unsigned long recent_scanned[2]; + unsigned long pages_scanned; /* since last reclaim */ unsigned long flags; /* zone flags, see below */ diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index fea3a982ee55..5fc96a4e760f 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -81,20 +81,37 @@ static inline void pagevec_free(struct pagevec *pvec) __pagevec_free(pvec); } -static inline void __pagevec_lru_add(struct pagevec *pvec) +static inline void __pagevec_lru_add_anon(struct pagevec *pvec) { - ____pagevec_lru_add(pvec, LRU_INACTIVE); + ____pagevec_lru_add(pvec, LRU_INACTIVE_ANON); } -static inline void __pagevec_lru_add_active(struct pagevec *pvec) +static inline void __pagevec_lru_add_active_anon(struct pagevec *pvec) { - ____pagevec_lru_add(pvec, LRU_ACTIVE); + ____pagevec_lru_add(pvec, LRU_ACTIVE_ANON); } -static inline void pagevec_lru_add(struct pagevec *pvec) +static inline void __pagevec_lru_add_file(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_INACTIVE_FILE); +} + +static inline void __pagevec_lru_add_active_file(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_ACTIVE_FILE); +} + + +static inline void pagevec_lru_add_file(struct pagevec *pvec) +{ + if (pagevec_count(pvec)) + __pagevec_lru_add_file(pvec); +} + +static inline void pagevec_lru_add_anon(struct pagevec *pvec) { if (pagevec_count(pvec)) - __pagevec_lru_add(pvec); + __pagevec_lru_add_anon(pvec); } #endif /* _LINUX_PAGEVEC_H */ diff --git a/include/linux/swap.h b/include/linux/swap.h index 833be56ad835..7d09d79997a4 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -184,14 +184,24 @@ extern void swap_setup(void); * lru_cache_add: add a page to the page lists * @page: the page to add */ -static inline void lru_cache_add(struct page *page) +static inline void lru_cache_add_anon(struct page *page) { - __lru_cache_add(page, LRU_INACTIVE); + __lru_cache_add(page, LRU_INACTIVE_ANON); } -static inline void lru_cache_add_active(struct page *page) +static inline void lru_cache_add_active_anon(struct page *page) { - __lru_cache_add(page, LRU_ACTIVE); + __lru_cache_add(page, LRU_ACTIVE_ANON); +} + +static inline void lru_cache_add_file(struct page *page) +{ + __lru_cache_add(page, LRU_INACTIVE_FILE); +} + +static inline void lru_cache_add_active_file(struct page *page) +{ + __lru_cache_add(page, LRU_ACTIVE_FILE); } /* linux/mm/vmscan.c */ @@ -199,7 +209,7 @@ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask); extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, gfp_t gfp_mask); -extern int __isolate_lru_page(struct page *page, int mode); +extern int __isolate_lru_page(struct page *page, int mode, int file); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; extern int remove_mapping(struct address_space *mapping, struct page *page); diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 58334d439516..ff5179f2b153 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -159,6 +159,16 @@ static inline unsigned long zone_page_state(struct zone *zone, return x; } +extern unsigned long global_lru_pages(void); + +static inline unsigned long zone_lru_pages(struct zone *zone) +{ + return (zone_page_state(zone, NR_ACTIVE_ANON) + + zone_page_state(zone, NR_ACTIVE_FILE) + + zone_page_state(zone, NR_INACTIVE_ANON) + + zone_page_state(zone, NR_INACTIVE_FILE)); +} + #ifdef CONFIG_NUMA /* * Determine the per node value of a stat item. This function -- cgit v1.2.1 From 556adecba110bf5f1db6c6b56416cfab5bcab698 Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Sat, 18 Oct 2008 20:26:34 -0700 Subject: vmscan: second chance replacement for anonymous pages We avoid evicting and scanning anonymous pages for the most part, but under some workloads we can end up with most of memory filled with anonymous pages. At that point, we suddenly need to clear the referenced bits on all of memory, which can take ages on very large memory systems. We can reduce the maximum number of pages that need to be scanned by not taking the referenced state into account when deactivating an anonymous page. After all, every anonymous page starts out referenced, so why check? If an anonymous page gets referenced again before it reaches the end of the inactive list, we move it back to the active list. To keep the maximum amount of necessary work reasonable, we scale the active to inactive ratio with the size of memory, using the formula active:inactive ratio = sqrt(memory in GB * 10). Kswapd CPU use now seems to scale by the amount of pageout bandwidth, instead of by the amount of memory present in the system. [kamezawa.hiroyu@jp.fujitsu.com: fix OOM with memcg] [kamezawa.hiroyu@jp.fujitsu.com: memcg: lru scan fix] Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_inline.h | 19 +++++++++++++++++++ include/linux/mmzone.h | 6 ++++++ 2 files changed, 25 insertions(+) (limited to 'include') diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 2eb599465d56..f451fedd1e75 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -117,4 +117,23 @@ static inline enum lru_list page_lru(struct page *page) return lru; } +/** + * inactive_anon_is_low - check if anonymous pages need to be deactivated + * @zone: zone to check + * + * Returns true if the zone does not have enough inactive anon pages, + * meaning some active anon pages need to be deactivated. + */ +static inline int inactive_anon_is_low(struct zone *zone) +{ + unsigned long active, inactive; + + active = zone_page_state(zone, NR_ACTIVE_ANON); + inactive = zone_page_state(zone, NR_INACTIVE_ANON); + + if (inactive * zone->inactive_ratio < active) + return 1; + + return 0; +} #endif diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 59a4c8fd6ebd..9c5111f49a32 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -323,6 +323,12 @@ struct zone { */ int prev_priority; + /* + * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on + * this zone's LRU. Maintained by the pageout code. + */ + unsigned int inactive_ratio; + ZONE_PADDING(_pad2_) /* Rarely used or read-mostly fields */ -- cgit v1.2.1 From 8a7a8544a4f6554ec2d8048ac9f9672f442db5a2 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:37 -0700 Subject: pageflag helpers for configed-out flags Define proper false/noop inline functions for noreclaim page flags when !defined(CONFIG_UNEVICTABLE_LRU) Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-flags.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 57b688cfb5e2..3d31616dcd23 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -162,6 +162,18 @@ static inline int Page##uname(struct page *page) \ #define TESTSCFLAG(uname, lname) \ TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname) +#define SETPAGEFLAG_NOOP(uname) \ +static inline void SetPage##uname(struct page *page) { } + +#define CLEARPAGEFLAG_NOOP(uname) \ +static inline void ClearPage##uname(struct page *page) { } + +#define __CLEARPAGEFLAG_NOOP(uname) \ +static inline void __ClearPage##uname(struct page *page) { } + +#define TESTCLEARFLAG_FALSE(uname) \ +static inline int TestClearPage##uname(struct page *page) { return 0; } + struct page; /* forward declaration */ TESTPAGEFLAG(Locked, locked) -- cgit v1.2.1 From 894bc310419ac95f4fa4142dc364401a7e607f65 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:39 -0700 Subject: Unevictable LRU Infrastructure When the system contains lots of mlocked or otherwise unevictable pages, the pageout code (kswapd) can spend lots of time scanning over these pages. Worse still, the presence of lots of unevictable pages can confuse kswapd into thinking that more aggressive pageout modes are required, resulting in all kinds of bad behaviour. Infrastructure to manage pages excluded from reclaim--i.e., hidden from vmscan. Based on a patch by Larry Woodman of Red Hat. Reworked to maintain "unevictable" pages on a separate per-zone LRU list, to "hide" them from vmscan. Kosaki Motohiro added the support for the memory controller unevictable lru list. Pages on the unevictable list have both PG_unevictable and PG_lru set. Thus, PG_unevictable is analogous to and mutually exclusive with PG_active--it specifies which LRU list the page is on. The unevictable infrastructure is enabled by a new mm Kconfig option [CONFIG_]UNEVICTABLE_LRU. A new function 'page_evictable(page, vma)' in vmscan.c tests whether or not a page may be evictable. Subsequent patches will add the various !evictable tests. We'll want to keep these tests light-weight for use in shrink_active_list() and, possibly, the fault path. To avoid races between tasks putting pages [back] onto an LRU list and tasks that might be moving the page from non-evictable to evictable state, the new function 'putback_lru_page()' -- inverse to 'isolate_lru_page()' -- tests the "evictability" of a page after placing it on the LRU, before dropping the reference. If the page has become unevictable, putback_lru_page() will redo the 'putback', thus moving the page to the unevictable list. This way, we avoid "stranding" evictable pages on the unevictable list. [akpm@linux-foundation.org: fix fallout from out-of-order merge] [riel@redhat.com: fix UNEVICTABLE_LRU and !PROC_PAGE_MONITOR build] [nishimura@mxp.nes.nec.co.jp: remove redundant mapping check] [kosaki.motohiro@jp.fujitsu.com: unevictable-lru-infrastructure: putback_lru_page()/unevictable page handling rework] [kosaki.motohiro@jp.fujitsu.com: kill unnecessary lock_page() in vmscan.c] [kosaki.motohiro@jp.fujitsu.com: revert migration change of unevictable lru infrastructure] [kosaki.motohiro@jp.fujitsu.com: revert to unevictable-lru-infrastructure-kconfig-fix.patch] [kosaki.motohiro@jp.fujitsu.com: restore patch failure of vmstat-unevictable-and-mlocked-pages-vm-events.patch] Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Debugged-by: Benjamin Kidwell Signed-off-by: Daisuke Nishimura Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 2 +- include/linux/mm_inline.h | 23 ++++++++++++++++------- include/linux/mmzone.h | 24 +++++++++++++++++++++++- include/linux/page-flags.h | 22 +++++++++++++++++++++- include/linux/pagevec.h | 1 - include/linux/swap.h | 12 ++++++++++++ 6 files changed, 73 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 8d8f05c1515a..ee1b2fcb4410 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -34,9 +34,9 @@ extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); +extern void mem_cgroup_move_lists(struct page *page, enum lru_list lru); extern void mem_cgroup_uncharge_page(struct page *page); extern void mem_cgroup_uncharge_cache_page(struct page *page); -extern void mem_cgroup_move_lists(struct page *page, bool active); extern int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask); extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index f451fedd1e75..67d7697fd019 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -91,11 +91,16 @@ del_page_from_lru(struct zone *zone, struct page *page) enum lru_list l = LRU_BASE; list_del(&page->lru); - if (PageActive(page)) { - __ClearPageActive(page); - l += LRU_ACTIVE; + if (PageUnevictable(page)) { + __ClearPageUnevictable(page); + l = LRU_UNEVICTABLE; + } else { + if (PageActive(page)) { + __ClearPageActive(page); + l += LRU_ACTIVE; + } + l += page_is_file_cache(page); } - l += page_is_file_cache(page); __dec_zone_state(zone, NR_LRU_BASE + l); } @@ -110,9 +115,13 @@ static inline enum lru_list page_lru(struct page *page) { enum lru_list lru = LRU_BASE; - if (PageActive(page)) - lru += LRU_ACTIVE; - lru += page_is_file_cache(page); + if (PageUnevictable(page)) + lru = LRU_UNEVICTABLE; + else { + if (PageActive(page)) + lru += LRU_ACTIVE; + lru += page_is_file_cache(page); + } return lru; } diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9c5111f49a32..d1f60d5fe2ea 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -86,6 +86,11 @@ enum zone_stat_item { NR_ACTIVE_ANON, /* " " " " " */ NR_INACTIVE_FILE, /* " " " " " */ NR_ACTIVE_FILE, /* " " " " " */ +#ifdef CONFIG_UNEVICTABLE_LRU + NR_UNEVICTABLE, /* " " " " " */ +#else + NR_UNEVICTABLE = NR_ACTIVE_FILE, /* avoid compiler errors in dead code */ +#endif NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ @@ -128,10 +133,18 @@ enum lru_list { LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE, LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE, LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE, - NR_LRU_LISTS }; +#ifdef CONFIG_UNEVICTABLE_LRU + LRU_UNEVICTABLE, +#else + LRU_UNEVICTABLE = LRU_ACTIVE_FILE, /* avoid compiler errors in dead code */ +#endif + NR_LRU_LISTS +}; #define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) +#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++) + static inline int is_file_lru(enum lru_list l) { return (l == LRU_INACTIVE_FILE || l == LRU_ACTIVE_FILE); @@ -142,6 +155,15 @@ static inline int is_active_lru(enum lru_list l) return (l == LRU_ACTIVE_ANON || l == LRU_ACTIVE_FILE); } +static inline int is_unevictable_lru(enum lru_list l) +{ +#ifdef CONFIG_UNEVICTABLE_LRU + return (l == LRU_UNEVICTABLE); +#else + return 0; +#endif +} + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3d31616dcd23..ec1a1baad348 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -94,6 +94,9 @@ enum pageflags { PG_reclaim, /* To be reclaimed asap */ PG_buddy, /* Page is free, on buddy lists */ PG_swapbacked, /* Page is backed by RAM/swap */ +#ifdef CONFIG_UNEVICTABLE_LRU + PG_unevictable, /* Page is "unevictable" */ +#endif #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ #endif @@ -182,6 +185,7 @@ PAGEFLAG(Referenced, referenced) TESTCLEARFLAG(Referenced, referenced) PAGEFLAG(Dirty, dirty) TESTSCFLAG(Dirty, dirty) __CLEARPAGEFLAG(Dirty, dirty) PAGEFLAG(LRU, lru) __CLEARPAGEFLAG(LRU, lru) PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active) + TESTCLEARFLAG(Active, active) __PAGEFLAG(Slab, slab) PAGEFLAG(Checked, checked) /* Used by some filesystems */ PAGEFLAG(Pinned, pinned) TESTSCFLAG(Pinned, pinned) /* Xen */ @@ -225,6 +229,15 @@ PAGEFLAG(SwapCache, swapcache) PAGEFLAG_FALSE(SwapCache) #endif +#ifdef CONFIG_UNEVICTABLE_LRU +PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) + TESTCLEARFLAG(Unevictable, unevictable) +#else +PAGEFLAG_FALSE(Unevictable) TESTCLEARFLAG_FALSE(Unevictable) + SETPAGEFLAG_NOOP(Unevictable) CLEARPAGEFLAG_NOOP(Unevictable) + __CLEARPAGEFLAG_NOOP(Unevictable) +#endif + #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PAGEFLAG(Uncached, uncached) #else @@ -340,9 +353,16 @@ static inline void __ClearPageTail(struct page *page) #endif /* !PAGEFLAGS_EXTENDED */ +#ifdef CONFIG_UNEVICTABLE_LRU +#define __PG_UNEVICTABLE (1 << PG_unevictable) +#else +#define __PG_UNEVICTABLE 0 +#endif + #define PAGE_FLAGS (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \ 1 << PG_buddy | 1 << PG_writeback | \ - 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active) + 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ + __PG_UNEVICTABLE) /* * Flags checked in bad_page(). Pages on the free list should not have diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 5fc96a4e760f..e90a2cb02915 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -101,7 +101,6 @@ static inline void __pagevec_lru_add_active_file(struct pagevec *pvec) ____pagevec_lru_add(pvec, LRU_ACTIVE_FILE); } - static inline void pagevec_lru_add_file(struct pagevec *pvec) { if (pagevec_count(pvec)) diff --git a/include/linux/swap.h b/include/linux/swap.h index 7d09d79997a4..a2113044d20a 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -180,6 +180,8 @@ extern int lru_add_drain_all(void); extern void rotate_reclaimable_page(struct page *page); extern void swap_setup(void); +extern void add_page_to_unevictable_list(struct page *page); + /** * lru_cache_add: add a page to the page lists * @page: the page to add @@ -228,6 +230,16 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order) } #endif +#ifdef CONFIG_UNEVICTABLE_LRU +extern int page_evictable(struct page *page, struct vm_area_struct *vma); +#else +static inline int page_evictable(struct page *page, + struct vm_area_struct *vma) +{ + return 1; +} +#endif + extern int kswapd_run(int nid); #ifdef CONFIG_MMU -- cgit v1.2.1 From bbfd28eee9fbd73e780b19beb3dc562befbb94fa Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:40 -0700 Subject: unevictable lru: add event counting with statistics Fix to unevictable-lru-page-statistics.patch Add unevictable lru infrastructure vm events to the statistics patch. Rename the "NORECL_" and "noreclaim_" symbols and text strings to "UNEVICTABLE_" and "unevictable_", respectively. Currently, both the infrastructure and the mlocked pages event are added by a single patch later in the series. This makes it difficult to add or rework the incremental patches. The events actually "belong" with the stats, so pull them up to here. Also, restore the event counting to putback_lru_page(). This was removed from previous patch in series where it was "misplaced". The actual events weren't defined that early. Signed-off-by: Lee Schermerhorn Cc: Rik van Riel Reviewed-by: KOSAKI Motohiro Cc: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmstat.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index ff5179f2b153..135840cd7feb 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -40,6 +40,11 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, PAGEOUTRUN, ALLOCSTALL, PGROTATED, #ifdef CONFIG_HUGETLB_PAGE HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL, +#endif +#ifdef CONFIG_UNEVICTABLE_LRU + UNEVICTABLE_PGCULLED, /* culled to noreclaim list */ + UNEVICTABLE_PGSCANNED, /* scanned for reclaimability */ + UNEVICTABLE_PGRESCUED, /* rescued from noreclaim list */ #endif NR_VM_EVENT_ITEMS }; -- cgit v1.2.1 From ba9ddf49391645e6bb93219131a40446538a5e76 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:42 -0700 Subject: Ramfs and Ram Disk pages are unevictable Christoph Lameter pointed out that ram disk pages also clutter the LRU lists. When vmscan finds them dirty and tries to clean them, the ram disk writeback function just redirties the page so that it goes back onto the active list. Round and round she goes... With the ram disk driver [rd.c] replaced by the newer 'brd.c', this is no longer the case, as ram disk pages are no longer maintained on the lru. [This makes them unmigratable for defrag or memory hot remove, but that can be addressed by a separate patch series.] However, the ramfs pages behave like ram disk pages used to, so: Define new address_space flag [shares address_space flags member with mapping's gfp mask] to indicate that the address space contains all unevictable pages. This will provide for efficient testing of ramfs pages in page_evictable(). Also provide wrapper functions to set/test the unevictable state to minimize #ifdefs in ramfs driver and any other users of this facility. Set the unevictable state on address_space structures for new ramfs inodes. Test the unevictable state in page_evictable() to cull unevictable pages. These changes depend on [CONFIG_]UNEVICTABLE_LRU. [riel@redhat.com: undo the brd.c part] Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Debugged-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 5da31c12101c..09164d2c5c27 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -32,6 +32,28 @@ static inline void mapping_set_error(struct address_space *mapping, int error) } } +#ifdef CONFIG_UNEVICTABLE_LRU +#define AS_UNEVICTABLE (__GFP_BITS_SHIFT + 2) /* e.g., ramdisk, SHM_LOCK */ + +static inline void mapping_set_unevictable(struct address_space *mapping) +{ + set_bit(AS_UNEVICTABLE, &mapping->flags); +} + +static inline int mapping_unevictable(struct address_space *mapping) +{ + if (mapping && (mapping->flags & AS_UNEVICTABLE)) + return 1; + return 0; +} +#else +static inline void mapping_set_unevictable(struct address_space *mapping) { } +static inline int mapping_unevictable(struct address_space *mapping) +{ + return 0; +} +#endif + static inline gfp_t mapping_gfp_mask(struct address_space * mapping) { return (__force gfp_t)mapping->flags & __GFP_BITS_MASK; -- cgit v1.2.1 From 89e004ea55abe201b29e2d6e35124101f1288ef7 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:43 -0700 Subject: SHM_LOCKED pages are unevictable Shmem segments locked into memory via shmctl(SHM_LOCKED) should not be kept on the normal LRU, since scanning them is a waste of time and might throw off kswapd's balancing algorithms. Place them on the unevictable LRU list instead. Use the AS_UNEVICTABLE flag to mark address_space of SHM_LOCKed shared memory regions as unevictable. Then these pages will be culled off the normal LRU lists during vmscan. Add new wrapper function to clear the mapping's unevictable state when/if shared memory segment is munlocked. Add 'scan_mapping_unevictable_page()' to mm/vmscan.c to scan all pages in the shmem segment's mapping [struct address_space] for evictability now that they're no longer locked. If so, move them to the appropriate zone lru list. Changes depend on [CONFIG_]UNEVICTABLE_LRU. [kosaki.motohiro@jp.fujitsu.com: revert shm change] Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: Kosaki Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 4 ++-- include/linux/pagemap.h | 12 +++++++++--- include/linux/swap.h | 4 ++++ 3 files changed, 15 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index c61ba10768ea..40236290e2ae 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -700,10 +700,10 @@ static inline int page_mapped(struct page *page) extern void show_free_areas(void); #ifdef CONFIG_SHMEM -int shmem_lock(struct file *file, int lock, struct user_struct *user); +extern int shmem_lock(struct file *file, int lock, struct user_struct *user); #else static inline int shmem_lock(struct file *file, int lock, - struct user_struct *user) + struct user_struct *user) { return 0; } diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 09164d2c5c27..4b6c4d8d26b8 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -40,14 +40,20 @@ static inline void mapping_set_unevictable(struct address_space *mapping) set_bit(AS_UNEVICTABLE, &mapping->flags); } +static inline void mapping_clear_unevictable(struct address_space *mapping) +{ + clear_bit(AS_UNEVICTABLE, &mapping->flags); +} + static inline int mapping_unevictable(struct address_space *mapping) { - if (mapping && (mapping->flags & AS_UNEVICTABLE)) - return 1; - return 0; + if (likely(mapping)) + return test_bit(AS_UNEVICTABLE, &mapping->flags); + return !!mapping; } #else static inline void mapping_set_unevictable(struct address_space *mapping) { } +static inline void mapping_clear_unevictable(struct address_space *mapping) { } static inline int mapping_unevictable(struct address_space *mapping) { return 0; diff --git a/include/linux/swap.h b/include/linux/swap.h index a2113044d20a..7edb4cbc29f9 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -232,12 +232,16 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order) #ifdef CONFIG_UNEVICTABLE_LRU extern int page_evictable(struct page *page, struct vm_area_struct *vma); +extern void scan_mapping_unevictable_pages(struct address_space *); #else static inline int page_evictable(struct page *page, struct vm_area_struct *vma) { return 1; } +static inline void scan_mapping_unevictable_pages(struct address_space *mapping) +{ +} #endif extern int kswapd_run(int nid); -- cgit v1.2.1 From b291f000393f5a0b679012b39d79fbc85c018233 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:26:44 -0700 Subject: mlock: mlocked pages are unevictable Make sure that mlocked pages also live on the unevictable LRU, so kswapd will not scan them over and over again. This is achieved through various strategies: 1) add yet another page flag--PG_mlocked--to indicate that the page is locked for efficient testing in vmscan and, optionally, fault path. This allows early culling of unevictable pages, preventing them from getting to page_referenced()/try_to_unmap(). Also allows separate accounting of mlock'd pages, as Nick's original patch did. Note: Nick's original mlock patch used a PG_mlocked flag. I had removed this in favor of the PG_unevictable flag + an mlock_count [new page struct member]. I restored the PG_mlocked flag to eliminate the new count field. 2) add the mlock/unevictable infrastructure to mm/mlock.c, with internal APIs in mm/internal.h. This is a rework of Nick's original patch to these files, taking into account that mlocked pages are now kept on unevictable LRU list. 3) update vmscan.c:page_evictable() to check PageMlocked() and, if vma passed in, the vm_flags. Note that the vma will only be passed in for new pages in the fault path; and then only if the "cull unevictable pages in fault path" patch is included. 4) add try_to_unlock() to rmap.c to walk a page's rmap and ClearPageMlocked() if no other vmas have it mlocked. Reuses as much of try_to_unmap() as possible. This effectively replaces the use of one of the lru list links as an mlock count. If this mechanism let's pages in mlocked vmas leak through w/o PG_mlocked set [I don't know that it does], we should catch them later in try_to_unmap(). One hopes this will be rare, as it will be relatively expensive. Original mm/internal.h, mm/rmap.c and mm/mlock.c changes: Signed-off-by: Nick Piggin splitlru: introduce __get_user_pages(): New munlock processing need to GUP_FLAGS_IGNORE_VMA_PERMISSIONS. because current get_user_pages() can't grab PROT_NONE pages theresore it cause PROT_NONE pages can't munlock. [akpm@linux-foundation.org: fix this for pagemap-pass-mm-into-pagewalkers.patch] [akpm@linux-foundation.org: untangle patch interdependencies] [akpm@linux-foundation.org: fix things after out-of-order merging] [hugh@veritas.com: fix page-flags mess] [lee.schermerhorn@hp.com: fix munlock page table walk - now requires 'mm'] [kosaki.motohiro@jp.fujitsu.com: build fix] [kosaki.motohiro@jp.fujitsu.com: fix truncate race and sevaral comments] [kosaki.motohiro@jp.fujitsu.com: splitlru: introduce __get_user_pages()] Signed-off-by: KOSAKI Motohiro Signed-off-by: Rik van Riel Signed-off-by: Lee Schermerhorn Cc: Nick Piggin Cc: Dave Hansen Cc: Matt Mackall Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 5 +++++ include/linux/page-flags.h | 19 ++++++++++++++++--- include/linux/rmap.h | 14 ++++++++++++++ 3 files changed, 35 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 40236290e2ae..ffee2f743418 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -131,6 +131,11 @@ extern unsigned int kobjsize(const void *objp); #define VM_SequentialReadHint(v) ((v)->vm_flags & VM_SEQ_READ) #define VM_RandomReadHint(v) ((v)->vm_flags & VM_RAND_READ) +/* + * special vmas that are non-mergable, non-mlock()able + */ +#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP) + /* * mapping from the currently active vm_flags protection bits (the * low four bits) to a page protection mask.. diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index ec1a1baad348..b12f93a3c345 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -96,6 +96,7 @@ enum pageflags { PG_swapbacked, /* Page is backed by RAM/swap */ #ifdef CONFIG_UNEVICTABLE_LRU PG_unevictable, /* Page is "unevictable" */ + PG_mlocked, /* Page is vma mlocked */ #endif #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ @@ -232,7 +233,17 @@ PAGEFLAG_FALSE(SwapCache) #ifdef CONFIG_UNEVICTABLE_LRU PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) TESTCLEARFLAG(Unevictable, unevictable) + +#define MLOCK_PAGES 1 +PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked) + TESTSCFLAG(Mlocked, mlocked) + #else + +#define MLOCK_PAGES 0 +PAGEFLAG_FALSE(Mlocked) + SETPAGEFLAG_NOOP(Mlocked) TESTCLEARFLAG_FALSE(Mlocked) + PAGEFLAG_FALSE(Unevictable) TESTCLEARFLAG_FALSE(Unevictable) SETPAGEFLAG_NOOP(Unevictable) CLEARPAGEFLAG_NOOP(Unevictable) __CLEARPAGEFLAG_NOOP(Unevictable) @@ -354,15 +365,17 @@ static inline void __ClearPageTail(struct page *page) #endif /* !PAGEFLAGS_EXTENDED */ #ifdef CONFIG_UNEVICTABLE_LRU -#define __PG_UNEVICTABLE (1 << PG_unevictable) +#define __PG_UNEVICTABLE (1 << PG_unevictable) +#define __PG_MLOCKED (1 << PG_mlocked) #else -#define __PG_UNEVICTABLE 0 +#define __PG_UNEVICTABLE 0 +#define __PG_MLOCKED 0 #endif #define PAGE_FLAGS (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \ 1 << PG_buddy | 1 << PG_writeback | \ 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ - __PG_UNEVICTABLE) + __PG_UNEVICTABLE | __PG_MLOCKED) /* * Flags checked in bad_page(). Pages on the free list should not have diff --git a/include/linux/rmap.h b/include/linux/rmap.h index fed6f5e0b411..955667e6a52d 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -117,6 +117,19 @@ unsigned long page_address_in_vma(struct page *, struct vm_area_struct *); */ int page_mkclean(struct page *); +#ifdef CONFIG_UNEVICTABLE_LRU +/* + * called in munlock()/munmap() path to check for other vmas holding + * the page mlocked. + */ +int try_to_munlock(struct page *); +#else +static inline int try_to_munlock(struct page *page) +{ + return 0; /* a.k.a. SWAP_SUCCESS */ +} +#endif + #else /* !CONFIG_MMU */ #define anon_vma_init() do {} while (0) @@ -140,5 +153,6 @@ static inline int page_mkclean(struct page *page) #define SWAP_SUCCESS 0 #define SWAP_AGAIN 1 #define SWAP_FAIL 2 +#define SWAP_MLOCK 3 #endif /* _LINUX_RMAP_H */ -- cgit v1.2.1 From 5344b7e648980cc2ca613ec03a56a8222ff48820 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:26:51 -0700 Subject: vmstat: mlocked pages statistics Add NR_MLOCK zone page state, which provides a (conservative) count of mlocked pages (actually, the number of mlocked pages moved off the LRU). Reworked by lts to fit in with the modified mlock page support in the Reclaim Scalability series. [kosaki.motohiro@jp.fujitsu.com: fix incorrect Mlocked field of /proc/meminfo] [lee.schermerhorn@hp.com: mlocked-pages: add event counting with statistics] Signed-off-by: Nick Piggin Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 2 ++ include/linux/vmstat.h | 4 ++++ 2 files changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index d1f60d5fe2ea..da2d053a95f1 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -88,8 +88,10 @@ enum zone_stat_item { NR_ACTIVE_FILE, /* " " " " " */ #ifdef CONFIG_UNEVICTABLE_LRU NR_UNEVICTABLE, /* " " " " " */ + NR_MLOCK, /* mlock()ed pages found and moved off LRU */ #else NR_UNEVICTABLE = NR_ACTIVE_FILE, /* avoid compiler errors in dead code */ + NR_MLOCK = NR_ACTIVE_FILE, #endif NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 135840cd7feb..05b805020be2 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -45,6 +45,10 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, UNEVICTABLE_PGCULLED, /* culled to noreclaim list */ UNEVICTABLE_PGSCANNED, /* scanned for reclaimability */ UNEVICTABLE_PGRESCUED, /* rescued from noreclaim list */ + UNEVICTABLE_PGMLOCKED, + UNEVICTABLE_PGMUNLOCKED, + UNEVICTABLE_PGCLEARED, /* on COW, page truncate */ + UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */ #endif NR_VM_EVENT_ITEMS }; -- cgit v1.2.1 From 64d6519dda3905dfb94d3f93c07c5f263f41813f Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:52 -0700 Subject: swap: cull unevictable pages in fault path In the fault paths that install new anonymous pages, check whether the page is evictable or not using lru_cache_add_active_or_unevictable(). If the page is evictable, just add it to the active lru list [via the pagevec cache], else add it to the unevictable list. This "proactive" culling in the fault path mimics the handling of mlocked pages in Nick Piggin's series to keep mlocked pages off the lru lists. Notes: 1) This patch is optional--e.g., if one is concerned about the additional test in the fault path. We can defer the moving of nonreclaimable pages until when vmscan [shrink_*_list()] encounters them. Vmscan will only need to handle such pages once, but if there are a lot of them it could impact system performance. 2) The 'vma' argument to page_evictable() is require to notice that we're faulting a page into an mlock()ed vma w/o having to scan the page's rmap in the fault path. Culling mlock()ed anon pages is currently the only reason for this patch. 3) We can't cull swap pages in read_swap_cache_async() because the vma argument doesn't necessarily correspond to the swap cache offset passed in by swapin_readahead(). This could [did!] result in mlocking pages in non-VM_LOCKED vmas if [when] we tried to cull in this path. 4) Move set_pte_at() to after where we add page to lru to keep it hidden from other tasks that might walk the page table. We already do it in this order in do_anonymous() page. And, these are COW'd anon pages. Is this safe? [riel@redhat.com: undo an overzealous code cleanup] Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swap.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/swap.h b/include/linux/swap.h index 7edb4cbc29f9..07eda69412fb 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -173,6 +173,8 @@ extern unsigned int nr_free_pagecache_pages(void); /* linux/mm/swap.c */ extern void __lru_cache_add(struct page *, enum lru_list lru); extern void lru_cache_add_lru(struct page *, enum lru_list lru); +extern void lru_cache_add_active_or_unevictable(struct page *, + struct vm_area_struct *); extern void activate_page(struct page *); extern void mark_page_accessed(struct page *); extern void lru_add_drain(void); -- cgit v1.2.1 From af936a1606246a10c145feac3770f6287f483f02 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:53 -0700 Subject: vmscan: unevictable LRU scan sysctl This patch adds a function to scan individual or all zones' unevictable lists and move any pages that have become evictable onto the respective zone's inactive list, where shrink_inactive_list() will deal with them. Adds sysctl to scan all nodes, and per node attributes to individual nodes' zones. Kosaki: If evictable page found in unevictable lru when write /proc/sys/vm/scan_unevictable_pages, print filename and file offset of these pages. [akpm@linux-foundation.org: fix one CONFIG_MMU=n build error] [kosaki.motohiro@jp.fujitsu.com: adapt vmscan-unevictable-lru-scan-sysctl.patch to new sysfs API] Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: KOSAKI Motohiro Signed-off-by: KOSAKI Motohiro Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rmap.h | 3 +++ include/linux/swap.h | 15 +++++++++++++++ 2 files changed, 18 insertions(+) (limited to 'include') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 955667e6a52d..1da48db8db09 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -75,6 +75,9 @@ void anon_vma_unlink(struct vm_area_struct *); void anon_vma_link(struct vm_area_struct *); void __anon_vma_link(struct vm_area_struct *); +extern struct anon_vma *page_lock_anon_vma(struct page *page); +extern void page_unlock_anon_vma(struct anon_vma *anon_vma); + /* * rmap interfaces called when adding or removing pte of page */ diff --git a/include/linux/swap.h b/include/linux/swap.h index 07eda69412fb..a3af95b2cb6d 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -235,15 +236,29 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order) #ifdef CONFIG_UNEVICTABLE_LRU extern int page_evictable(struct page *page, struct vm_area_struct *vma); extern void scan_mapping_unevictable_pages(struct address_space *); + +extern unsigned long scan_unevictable_pages; +extern int scan_unevictable_handler(struct ctl_table *, int, struct file *, + void __user *, size_t *, loff_t *); +extern int scan_unevictable_register_node(struct node *node); +extern void scan_unevictable_unregister_node(struct node *node); #else static inline int page_evictable(struct page *page, struct vm_area_struct *vma) { return 1; } + static inline void scan_mapping_unevictable_pages(struct address_space *mapping) { } + +static inline int scan_unevictable_register_node(struct node *node) +{ + return 0; +} + +static inline void scan_unevictable_unregister_node(struct node *node) { } #endif extern int kswapd_run(int nid); -- cgit v1.2.1 From 985737cf2ea096ea946aed82c7484d40defc71a8 Mon Sep 17 00:00:00 2001 From: Lee Schermerhorn Date: Sat, 18 Oct 2008 20:26:53 -0700 Subject: mlock: count attempts to free mlocked page Allow free of mlock()ed pages. This shouldn't happen, but during developement, it occasionally did. This patch allows us to survive that condition, while keeping the statistics and events correct for debug. Signed-off-by: Lee Schermerhorn Signed-off-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmstat.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 05b805020be2..9cd3ab0f554d 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -49,6 +49,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, UNEVICTABLE_PGMUNLOCKED, UNEVICTABLE_PGCLEARED, /* on COW, page truncate */ UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */ + UNEVICTABLE_MLOCKFREED, #endif NR_VM_EVENT_ITEMS }; -- cgit v1.2.1 From 902d2e8ae0de29f483840ba1134af27343b9564d Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Sat, 18 Oct 2008 20:26:54 -0700 Subject: vmscan: kill unused lru functions Several LRU manupuration function are not used now. So they can be removed. Signed-off-by: KOSAKI Motohiro Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_inline.h | 48 ----------------------------------------------- 1 file changed, 48 deletions(-) (limited to 'include') diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 67d7697fd019..c948350c378e 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -37,54 +37,6 @@ del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l) __dec_zone_state(zone, NR_LRU_BASE + l); } -static inline void -add_page_to_inactive_anon_list(struct zone *zone, struct page *page) -{ - add_page_to_lru_list(zone, page, LRU_INACTIVE_ANON); -} - -static inline void -add_page_to_active_anon_list(struct zone *zone, struct page *page) -{ - add_page_to_lru_list(zone, page, LRU_ACTIVE_ANON); -} - -static inline void -add_page_to_inactive_file_list(struct zone *zone, struct page *page) -{ - add_page_to_lru_list(zone, page, LRU_INACTIVE_FILE); -} - -static inline void -add_page_to_active_file_list(struct zone *zone, struct page *page) -{ - add_page_to_lru_list(zone, page, LRU_ACTIVE_FILE); -} - -static inline void -del_page_from_inactive_anon_list(struct zone *zone, struct page *page) -{ - del_page_from_lru_list(zone, page, LRU_INACTIVE_ANON); -} - -static inline void -del_page_from_active_anon_list(struct zone *zone, struct page *page) -{ - del_page_from_lru_list(zone, page, LRU_ACTIVE_ANON); -} - -static inline void -del_page_from_inactive_file_list(struct zone *zone, struct page *page) -{ - del_page_from_lru_list(zone, page, LRU_INACTIVE_FILE); -} - -static inline void -del_page_from_active_file_list(struct zone *zone, struct page *page) -{ - del_page_from_lru_list(zone, page, LRU_INACTIVE_FILE); -} - static inline void del_page_from_lru(struct zone *zone, struct page *page) { -- cgit v1.2.1 From f45840b5c128445da70e7ec33adc47b4a12bdaf4 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:26:57 -0700 Subject: mm: pagecache insertion fewer atomics Setting and clearing the page locked when inserting it into swapcache / pagecache when it has no other references can use non-atomic page flags operations because no other CPU may be operating on it at this time. This saves one atomic operation when inserting a page into pagecache. Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 4b6c4d8d26b8..7334b2b6c4c6 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -299,14 +299,14 @@ extern int __lock_page_killable(struct page *page); extern void __lock_page_nosync(struct page *page); extern void unlock_page(struct page *page); -static inline void set_page_locked(struct page *page) +static inline void __set_page_locked(struct page *page) { - set_bit(PG_locked, &page->flags); + __set_bit(PG_locked, &page->flags); } -static inline void clear_page_locked(struct page *page) +static inline void __clear_page_locked(struct page *page) { - clear_bit(PG_locked, &page->flags); + __clear_bit(PG_locked, &page->flags); } static inline int trylock_page(struct page *page) @@ -438,17 +438,17 @@ extern void __remove_from_page_cache(struct page *page); /* * Like add_to_page_cache_locked, but used to add newly allocated pages: - * the page is new, so we can just run set_page_locked() against it. + * the page is new, so we can just run __set_page_locked() against it. */ static inline int add_to_page_cache(struct page *page, struct address_space *mapping, pgoff_t offset, gfp_t gfp_mask) { int error; - set_page_locked(page); + __set_page_locked(page); error = add_to_page_cache_locked(page, mapping, offset, gfp_mask); if (unlikely(error)) - clear_page_locked(page); + __clear_page_locked(page); return error; } -- cgit v1.2.1 From 8413ac9d8c9a1366a4f57880723126cd24e5a5c3 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:26:59 -0700 Subject: mm: page lock use lock bitops trylock_page, unlock_page open and close a critical section. Hence, we can use the lock bitops to get the desired memory ordering. Also, mark trylock as likely to succeed (and remove the annotation from callers). Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 7334b2b6c4c6..709742be02f0 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -311,7 +311,7 @@ static inline void __clear_page_locked(struct page *page) static inline int trylock_page(struct page *page) { - return !test_and_set_bit(PG_locked, &page->flags); + return (likely(!test_and_set_bit_lock(PG_locked, &page->flags))); } /* -- cgit v1.2.1 From 51b07fc3c5c830bb49c80fc5eac041e1f66a72e7 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:27:00 -0700 Subject: fs: buffer lock use lock bitops trylock_buffer and unlock_buffer open and close a critical section. Hence, we can use the lock bitops to get the desired memory ordering. Signed-off-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/buffer_head.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index eadaab44015f..3ce64b90118c 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -322,7 +322,7 @@ static inline void wait_on_buffer(struct buffer_head *bh) static inline int trylock_buffer(struct buffer_head *bh) { - return likely(!test_and_set_bit(BH_Lock, &bh->b_state)); + return likely(!test_and_set_bit_lock(BH_Lock, &bh->b_state)); } static inline void lock_buffer(struct buffer_head *bh) -- cgit v1.2.1 From db64fe02258f1507e13fe5212a989922323685ce Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Sat, 18 Oct 2008 20:27:03 -0700 Subject: mm: rewrite vmap layer Rewrite the vmap allocator to use rbtrees and lazy tlb flushing, and provide a fast, scalable percpu frontend for small vmaps (requires a slightly different API, though). The biggest problem with vmap is actually vunmap. Presently this requires a global kernel TLB flush, which on most architectures is a broadcast IPI to all CPUs to flush the cache. This is all done under a global lock. As the number of CPUs increases, so will the number of vunmaps a scaled workload will want to perform, and so will the cost of a global TLB flush. This gives terrible quadratic scalability characteristics. Another problem is that the entire vmap subsystem works under a single lock. It is a rwlock, but it is actually taken for write in all the fast paths, and the read locking would likely never be run concurrently anyway, so it's just pointless. This is a rewrite of vmap subsystem to solve those problems. The existing vmalloc API is implemented on top of the rewritten subsystem. The TLB flushing problem is solved by using lazy TLB unmapping. vmap addresses do not have to be flushed immediately when they are vunmapped, because the kernel will not reuse them again (would be a use-after-free) until they are reallocated. So the addresses aren't allocated again until a subsequent TLB flush. A single TLB flush then can flush multiple vunmaps from each CPU. XEN and PAT and such do not like deferred TLB flushing because they can't always handle multiple aliasing virtual addresses to a physical address. They now call vm_unmap_aliases() in order to flush any deferred mappings. That call is very expensive (well, actually not a lot more expensive than a single vunmap under the old scheme), however it should be OK if not called too often. The virtual memory extent information is stored in an rbtree rather than a linked list to improve the algorithmic scalability. There is a per-CPU allocator for small vmaps, which amortizes or avoids global locking. To use the per-CPU interface, the vm_map_ram / vm_unmap_ram interfaces must be used in place of vmap and vunmap. Vmalloc does not use these interfaces at the moment, so it will not be quite so scalable (although it will use lazy TLB flushing). As a quick test of performance, I ran a test that loops in the kernel, linearly mapping then touching then unmapping 4 pages. Different numbers of tests were run in parallel on an 4 core, 2 socket opteron. Results are in nanoseconds per map+touch+unmap. threads vanilla vmap rewrite 1 14700 2900 2 33600 3000 4 49500 2800 8 70631 2900 So with a 8 cores, the rewritten version is already 25x faster. In a slightly more realistic test (although with an older and less scalable version of the patch), I ripped the not-very-good vunmap batching code out of XFS, and implemented the large buffer mapping with vm_map_ram and vm_unmap_ram... along with a couple of other tricks, I was able to speed up a large directory workload by 20x on a 64 CPU system. I believe vmap/vunmap is actually sped up a lot more than 20x on such a system, but I'm running into other locks now. vmap is pretty well blown off the profiles. Before: 1352059 total 0.1401 798784 _write_lock 8320.6667 <- vmlist_lock 529313 default_idle 1181.5022 15242 smp_call_function 15.8771 <- vmap tlb flushing 2472 __get_vm_area_node 1.9312 <- vmap 1762 remove_vm_area 4.5885 <- vunmap 316 map_vm_area 0.2297 <- vmap 312 kfree 0.1950 300 _spin_lock 3.1250 252 sn_send_IPI_phys 0.4375 <- tlb flushing 238 vmap 0.8264 <- vmap 216 find_lock_page 0.5192 196 find_next_bit 0.3603 136 sn2_send_IPI 0.2024 130 pio_phys_write_mmr 2.0312 118 unmap_kernel_range 0.1229 After: 78406 total 0.0081 40053 default_idle 89.4040 33576 ia64_spinlock_contention 349.7500 1650 _spin_lock 17.1875 319 __reg_op 0.5538 281 _atomic_dec_and_lock 1.0977 153 mutex_unlock 1.5938 123 iget_locked 0.1671 117 xfs_dir_lookup 0.1662 117 dput 0.1406 114 xfs_iget_core 0.0268 92 xfs_da_hashname 0.1917 75 d_alloc 0.0670 68 vmap_page_range 0.0462 <- vmap 58 kmem_cache_alloc 0.0604 57 memset 0.0540 52 rb_next 0.1625 50 __copy_user 0.0208 49 bitmap_find_free_region 0.2188 <- vmap 46 ia64_sn_udelay 0.1106 45 find_inode_fast 0.1406 42 memcmp 0.2188 42 finish_task_switch 0.1094 42 __d_lookup 0.0410 40 radix_tree_lookup_slot 0.1250 37 _spin_unlock_irqrestore 0.3854 36 xfs_bmapi 0.0050 36 kmem_cache_free 0.0256 35 xfs_vn_getattr 0.0322 34 radix_tree_lookup 0.1062 33 __link_path_walk 0.0035 31 xfs_da_do_buf 0.0091 30 _xfs_buf_find 0.0204 28 find_get_page 0.0875 27 xfs_iread 0.0241 27 __strncpy_from_user 0.2812 26 _xfs_buf_initialize 0.0406 24 _xfs_buf_lookup_pages 0.0179 24 vunmap_page_range 0.0250 <- vunmap 23 find_lock_page 0.0799 22 vm_map_ram 0.0087 <- vmap 20 kfree 0.0125 19 put_page 0.0330 18 __kmalloc 0.0176 17 xfs_da_node_lookup_int 0.0086 17 _read_lock 0.0885 17 page_waitqueue 0.0664 vmap has gone from being the top 5 on the profiles and flushing the crap out of all TLBs, to using less than 1% of kernel time. [akpm@linux-foundation.org: cleanups, section fix] [akpm@linux-foundation.org: fix build on alpha] Signed-off-by: Nick Piggin Cc: Jeremy Fitzhardinge Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmalloc.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 328eb4022727..4c28c4d564e2 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -2,6 +2,7 @@ #define _LINUX_VMALLOC_H #include +#include #include /* pgprot_t */ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ @@ -23,7 +24,6 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ #endif struct vm_struct { - /* keep next,addr,size together to speedup lookups */ struct vm_struct *next; void *addr; unsigned long size; @@ -37,6 +37,19 @@ struct vm_struct { /* * Highlevel APIs for driver use */ +extern void vm_unmap_ram(const void *mem, unsigned int count); +extern void *vm_map_ram(struct page **pages, unsigned int count, + int node, pgprot_t prot); +extern void vm_unmap_aliases(void); + +#ifdef CONFIG_MMU +extern void __init vmalloc_init(void); +#else +static inline void vmalloc_init(void) +{ +} +#endif + extern void *vmalloc(unsigned long size); extern void *vmalloc_user(unsigned long size); extern void *vmalloc_node(unsigned long size, int node); -- cgit v1.2.1 From e575f111dc0f27044e170580e7de50985ab3e011 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Sat, 18 Oct 2008 20:27:08 -0700 Subject: coredump_filter: add hugepage dumping Presently hugepage's vma has a VM_RESERVED flag in order not to be swapped. But a VM_RESERVED vma isn't core dumped because this flag is often used for some kernel vmas (e.g. vmalloc, sound related). Thus hugepages are never dumped and it can't be debugged easily. Many developers want hugepages to be included into core-dump. However, We can't read generic VM_RESERVED area because this area is often IO mapping area. then these area reading may change device state. it is definitly undesiable side-effect. So adding a hugepage specific bit to the coredump filter is better. It will be able to hugepage core dumping and doesn't cause any side-effect to any i/o devices. In additional, libhugetlb use hugetlb private mapping pages as anonymous page. Then, hugepage private mapping pages should be core dumped by default. Then, /proc/[pid]/core_dump_filter has two new bits. - bit 5 mean hugetlb private mapping pages are dumped or not. (default: yes) - bit 6 mean hugetlb shared mapping pages are dumped or not. (default: no) I tested by following method. % ulimit -c unlimited % ./crash_hugepage 50 % ./crash_hugepage 50 -p % ls -lh % gdb ./crash_hugepage core % % echo 0x43 > /proc/self/coredump_filter % ./crash_hugepage 50 % ./crash_hugepage 50 -p % ls -lh % gdb ./crash_hugepage core #include #include #include #include #include #include "hugetlbfs.h" int main(int argc, char** argv){ char* p; int ch; int mmap_flags = MAP_SHARED; int fd; int nr_pages; while((ch = getopt(argc, argv, "p")) != -1) { switch (ch) { case 'p': mmap_flags &= ~MAP_SHARED; mmap_flags |= MAP_PRIVATE; break; default: /* nothing*/ break; } } argc -= optind; argv += optind; if (argc == 0){ printf("need # of pages\n"); exit(1); } nr_pages = atoi(argv[0]); if (nr_pages < 2) { printf("nr_pages must >2\n"); exit(1); } fd = hugetlbfs_unlinked_fd(); p = mmap(NULL, nr_pages * gethugepagesize(), PROT_READ|PROT_WRITE, mmap_flags, fd, 0); sleep(2); *(p + gethugepagesize()) = 1; /* COW */ sleep(2); /* crash! */ *(int*)0 = 1; return 0; } Signed-off-by: KOSAKI Motohiro Reviewed-by: Kawai Hidehiro Cc: Hugh Dickins Cc: William Irwin Cc: Adam Litke Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index c226c7b82946..017cc914ef1f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -403,12 +403,15 @@ extern int get_dumpable(struct mm_struct *mm); #define MMF_DUMP_MAPPED_PRIVATE 4 #define MMF_DUMP_MAPPED_SHARED 5 #define MMF_DUMP_ELF_HEADERS 6 +#define MMF_DUMP_HUGETLB_PRIVATE 7 +#define MMF_DUMP_HUGETLB_SHARED 8 #define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS -#define MMF_DUMP_FILTER_BITS 5 +#define MMF_DUMP_FILTER_BITS 7 #define MMF_DUMP_FILTER_MASK \ (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) #define MMF_DUMP_FILTER_DEFAULT \ - ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED)) + ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\ + (1 << MMF_DUMP_HUGETLB_PRIVATE)) struct sighand_struct { atomic_t count; -- cgit v1.2.1 From 83224b08372be48d5fcefedc4886457da29130c8 Mon Sep 17 00:00:00 2001 From: Matt Helsley Date: Sat, 18 Oct 2008 20:27:18 -0700 Subject: container freezer: add TIF_FREEZE flag to all architectures This patch series introduces a cgroup subsystem that utilizes the swsusp freezer to freeze a group of tasks. It's immediately useful for batch job management scripts. It should also be useful in the future for implementing container checkpoint/restart. The freezer subsystem in the container filesystem defines a cgroup file named freezer.state. Reading freezer.state will return the current state of the cgroup. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This patch: The first step in making the refrigerator() available to all architectures, even for those without power management. The purpose of such a change is to be able to use the refrigerator() in a new control group subsystem which will implement a control group freezer. [akpm@linux-foundation.org: fix sparc] Signed-off-by: Cedric Le Goater Signed-off-by: Matt Helsley Acked-by: Pavel Machek Acked-by: Serge E. Hallyn Acked-by: Rafael J. Wysocki Acked-by: Nigel Cunningham Tested-by: Matt Helsley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-cris/thread_info.h | 2 ++ include/asm-m68k/thread_info.h | 1 + include/asm-parisc/thread_info.h | 2 ++ include/asm-um/thread_info.h | 2 ++ include/asm-xtensa/thread_info.h | 2 ++ 5 files changed, 9 insertions(+) (limited to 'include') diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h index 7efe1000f99d..cee97f14af3b 100644 --- a/include/asm-cris/thread_info.h +++ b/include/asm-cris/thread_info.h @@ -88,6 +88,7 @@ struct thread_info { #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */ #define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 17 +#define TIF_FREEZE 18 /* is freezing for suspend */ #define _TIF_SYSCALL_TRACE (1< Date: Sat, 18 Oct 2008 20:27:19 -0700 Subject: container freezer: make refrigerator always available Now that the TIF_FREEZE flag is available in all architectures, extract the refrigerator() and freeze_task() from kernel/power/process.c and make it available to all. The refrigerator() can now be used in a control group subsystem implementing a control group freezer. Signed-off-by: Cedric Le Goater Signed-off-by: Matt Helsley Acked-by: Serge E. Hallyn Tested-by: Matt Helsley Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/freezer.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/freezer.h b/include/linux/freezer.h index deddeedf3257..17e3bb42dd3c 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -6,7 +6,7 @@ #include #include -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_FREEZER /* * Check if a process has been frozen */ @@ -39,6 +39,11 @@ static inline void clear_freeze_flag(struct task_struct *p) clear_tsk_thread_flag(p, TIF_FREEZE); } +static inline bool should_send_signal(struct task_struct *p) +{ + return !(p->flags & PF_FREEZER_NOSIG); +} + /* * Wake up a frozen process * @@ -75,6 +80,9 @@ static inline int try_to_freeze(void) return 0; } +extern bool freeze_task(struct task_struct *p, bool sig_only); +extern void cancel_freezing(struct task_struct *p); + /* * The PF_FREEZER_SKIP flag should be set by a vfork parent right before it * calls wait_for_completion(&vfork) and reset right after it returns from this @@ -166,7 +174,7 @@ static inline void set_freezable_with_signal(void) } while (try_to_freeze()); \ __retval; \ }) -#else /* !CONFIG_PM_SLEEP */ +#else /* !CONFIG_FREEZER */ static inline int frozen(struct task_struct *p) { return 0; } static inline int freezing(struct task_struct *p) { return 0; } static inline void set_freeze_flag(struct task_struct *p) {} @@ -191,6 +199,6 @@ static inline void set_freezable_with_signal(void) {} #define wait_event_freezable_timeout(wq, condition, timeout) \ wait_event_interruptible_timeout(wq, condition, timeout) -#endif /* !CONFIG_PM_SLEEP */ +#endif /* !CONFIG_FREEZER */ #endif /* FREEZER_H_INCLUDED */ -- cgit v1.2.1 From dc52ddc0e6f45b04780b26fc0813509f8e798c42 Mon Sep 17 00:00:00 2001 From: Matt Helsley Date: Sat, 18 Oct 2008 20:27:21 -0700 Subject: container freezer: implement freezer cgroup subsystem This patch implements a new freezer subsystem in the control groups framework. It provides a way to stop and resume execution of all tasks in a cgroup by writing in the cgroup filesystem. The freezer subsystem in the container filesystem defines a file named freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. Reading will return the current state. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This is the basic mechanism which should do the right thing for user space task in a simple scenario. It's important to note that freezing can be incomplete. In that case we return EBUSY. This means that some tasks in the cgroup are busy doing something that prevents us from completely freezing the cgroup at this time. After EBUSY, the cgroup will remain partially frozen -- reflected by freezer.state reporting "FREEZING" when read. The state will remain "FREEZING" until one of these things happens: 1) Userspace cancels the freezing operation by writing "RUNNING" to the freezer.state file 2) Userspace retries the freezing operation by writing "FROZEN" to the freezer.state file (writing "FREEZING" is not legal and returns EIO) 3) The tasks that blocked the cgroup from entering the "FROZEN" state disappear from the cgroup's set of tasks. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: export thaw_process] Signed-off-by: Cedric Le Goater Signed-off-by: Matt Helsley Acked-by: Serge E. Hallyn Tested-by: Matt Helsley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup_subsys.h | 6 ++++++ include/linux/freezer.h | 29 ++++++++++------------------- 2 files changed, 16 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index e2877454ec82..9c22396e8b50 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -48,3 +48,9 @@ SUBSYS(devices) #endif /* */ + +#ifdef CONFIG_CGROUP_FREEZER +SUBSYS(freezer) +#endif + +/* */ diff --git a/include/linux/freezer.h b/include/linux/freezer.h index 17e3bb42dd3c..8f225339eee9 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -46,26 +46,11 @@ static inline bool should_send_signal(struct task_struct *p) /* * Wake up a frozen process - * - * task_lock() is taken to prevent the race with refrigerator() which may - * occur if the freezing of tasks fails. Namely, without the lock, if the - * freezing of tasks failed, thaw_tasks() might have run before a task in - * refrigerator() could call frozen_process(), in which case the task would be - * frozen and no one would thaw it. */ -static inline int thaw_process(struct task_struct *p) -{ - task_lock(p); - if (frozen(p)) { - p->flags &= ~PF_FROZEN; - task_unlock(p); - wake_up_process(p); - return 1; - } - clear_freeze_flag(p); - task_unlock(p); - return 0; -} +extern int __thaw_process(struct task_struct *p); + +/* Takes and releases task alloc lock using task_lock() */ +extern int thaw_process(struct task_struct *p); extern void refrigerator(void); extern int freeze_processes(void); @@ -83,6 +68,12 @@ static inline int try_to_freeze(void) extern bool freeze_task(struct task_struct *p, bool sig_only); extern void cancel_freezing(struct task_struct *p); +#ifdef CONFIG_CGROUP_FREEZER +extern int cgroup_frozen(struct task_struct *task); +#else /* !CONFIG_CGROUP_FREEZER */ +static inline int cgroup_frozen(struct task_struct *task) { return 0; } +#endif /* !CONFIG_CGROUP_FREEZER */ + /* * The PF_FREEZER_SKIP flag should be set by a vfork parent right before it * calls wait_for_completion(&vfork) and reset right after it returns from this -- cgit v1.2.1 From 3e680aae4e53ab54cdbb0c29257dae0cbb158e1c Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Sat, 18 Oct 2008 20:27:51 -0700 Subject: fb: convert lock/unlock_kernel() into local fb mutex Change lock_kernel()/unlock_kernel() to local fb mutex. Each frame buffer instance has its own mutex. The one line try_to_load() function is unrolled to request_module() in two places for readability. [righi.andrea@gmail.com: fb: fix NULL pointer BUG dereference in fb_open()] Signed-off-by: Krzysztof Helt Signed-off-by: Andrea Righi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/fb.h b/include/linux/fb.h index 531ccd5f5960..75a81eaf3430 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -808,6 +808,7 @@ struct fb_tile_ops { struct fb_info { int node; int flags; + struct mutex lock; /* Lock for open/release/ioctl funcs */ struct fb_var_screeninfo var; /* Current var */ struct fb_fix_screeninfo fix; /* Current fix */ struct fb_monspecs monspecs; /* Current Monitor specs */ -- cgit v1.2.1 From 0e4fb5e283870757024294bc4567a7c59d936f0b Mon Sep 17 00:00:00 2001 From: Hidehiro Kawai Date: Sat, 18 Oct 2008 20:27:57 -0700 Subject: ext3: add an option to control error handling on file data If the journal doesn't abort when it gets an IO error in file data blocks, the file data corruption will spread silently. Because most of applications and commands do buffered writes without fsync(), they don't notice the IO error. It's scary for mission critical systems. On the other hand, if the journal aborts whenever it gets an IO error in file data blocks, the system will easily become inoperable. So this patch introduces a filesystem option to determine whether it aborts the journal or just call printk() when it gets an IO error in file data. If you mount a ext3 fs with data_err=abort option, it aborts on file data write error. If you mount it with data_err=ignore, it doesn't abort, just call printk(). data_err=ignore is the default. Signed-off-by: Hidehiro Kawai Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ext3_fs.h | 2 ++ include/linux/jbd.h | 3 +++ 2 files changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 159d9b476cd7..d14f02918483 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -380,6 +380,8 @@ struct ext3_inode { #define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */ #define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ +#define EXT3_MOUNT_DATA_ERR_ABORT 0x400000 /* Abort on file data write + * error in ordered mode */ /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */ #ifndef _LINUX_EXT2_FS_H diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 7ebbcb1c9ba4..35d4f6342fac 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -816,6 +816,9 @@ struct journal_s #define JFS_FLUSHED 0x008 /* The journal superblock has been flushed */ #define JFS_LOADED 0x010 /* The journal superblock has been loaded */ #define JFS_BARRIER 0x020 /* Use IDE barriers */ +#define JFS_ABORT_ON_SYNCDATA_ERR 0x040 /* Abort the journal on file + * data write error in ordered + * mode */ /* * Function declarations for the journaling transaction and buffer -- cgit v1.2.1 From 146aa1bd0511f88ddb4e92fafa2b8aad4f2f65f3 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sat, 18 Oct 2008 20:28:03 -0700 Subject: cgroups: fix probable race with put_css_set[_taskexit] and find_css_set put_css_set_taskexit may be called when find_css_set is called on other cpu. And the race will occur: put_css_set_taskexit side find_css_set side | atomic_dec_and_test(&kref->refcount) | /* kref->refcount = 0 */ | .................................................................... | read_lock(&css_set_lock) | find_existing_css_set | get_css_set | read_unlock(&css_set_lock); .................................................................... __release_css_set | .................................................................... | /* use a released css_set */ | [put_css_set is the same. But in the current code, all put_css_set are put into cgroup mutex critical region as the same as find_css_set.] [akpm@linux-foundation.org: repair comments] [menage@google.com: eliminate race in css_set refcounting] Signed-off-by: Lai Jiangshan Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Signed-off-by: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 30934e4bfaab..7166023e07d2 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -9,7 +9,6 @@ */ #include -#include #include #include #include @@ -149,7 +148,7 @@ struct cgroup { struct css_set { /* Reference count */ - struct kref ref; + atomic_t refcount; /* * List running through all cgroup groups in the same hash -- cgit v1.2.1 From cc31edceee04a7b87f2be48f9489ebb72d264844 Mon Sep 17 00:00:00 2001 From: Paul Menage Date: Sat, 18 Oct 2008 20:28:04 -0700 Subject: cgroups: convert tasks file to use a seq_file with shared pid array Rather than pre-generating the entire text for the "tasks" file each time the file is opened, we instead just generate/update the array of process ids and use a seq_file to report these to userspace. All open file handles on the same "tasks" file can share a pid array, which may be updated any time that no thread is actively reading the array. By sharing the array, the potential for userspace to DoS the system by opening many handles on the same "tasks" file is removed. [Based on a patch by Lai Jiangshan, extended to use seq_file] Signed-off-by: Paul Menage Reviewed-by: Lai Jiangshan Cc: Serge Hallyn Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 7166023e07d2..8ab91880a0ad 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -14,6 +14,7 @@ #include #include #include +#include #ifdef CONFIG_CGROUPS @@ -136,6 +137,15 @@ struct cgroup { * release_list_lock */ struct list_head release_list; + + /* pids_mutex protects the fields below */ + struct rw_semaphore pids_mutex; + /* Array of process ids in the cgroup */ + pid_t *tasks_pids; + /* How many files are using the current tasks_pids array */ + int pids_use_count; + /* Length of the current tasks_pids array */ + int pids_length; }; /* A css_set is a structure holding pointers to a set of -- cgit v1.2.1 From 886465f407e57d6c3c81013c919ea670ce1ae0d0 Mon Sep 17 00:00:00 2001 From: Paul Menage Date: Sat, 18 Oct 2008 20:28:05 -0700 Subject: cgroups: fix declaration of cgroup_mm_owner_callbacks The choice of real/dummy declaration for cgroup_mm_owner_callbacks() shouldn't be based on CONFIG_MM_OWNER, but on CONFIG_CGROUPS. Otherwise kernel/exit.c fails to compile when something other than a cgroups controller selects CONFIG_MM_OWNER Signed-off-by: Paul Menage Acked-by: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cgroup.h | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 8ab91880a0ad..8b00f6643e93 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -403,6 +403,9 @@ void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it); int cgroup_scan_tasks(struct cgroup_scanner *scan); int cgroup_attach_task(struct cgroup *, struct task_struct *); +void cgroup_mm_owner_callbacks(struct task_struct *old, + struct task_struct *new); + #else /* !CONFIG_CGROUPS */ static inline int cgroup_init_early(void) { return 0; } @@ -421,15 +424,9 @@ static inline int cgroupstats_build(struct cgroupstats *stats, return -EINVAL; } +static inline void cgroup_mm_owner_callbacks(struct task_struct *old, + struct task_struct *new) {} + #endif /* !CONFIG_CGROUPS */ -#ifdef CONFIG_MM_OWNER -extern void -cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new); -#else /* !CONFIG_MM_OWNER */ -static inline void -cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new) -{ -} -#endif /* CONFIG_MM_OWNER */ #endif /* _LINUX_CGROUP_H */ -- cgit v1.2.1 From 52d4b9ac0b985168009c2a57098324e67bae171f Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sat, 18 Oct 2008 20:28:16 -0700 Subject: memcg: allocate all page_cgroup at boot Allocate all page_cgroup at boot and remove page_cgroup poitner from struct page. This patch adds an interface as struct page_cgroup *lookup_page_cgroup(struct page*) All FLATMEM/DISCONTIGMEM/SPARSEMEM and MEMORY_HOTPLUG is supported. Remove page_cgroup pointer reduces the amount of memory by - 4 bytes per PAGE_SIZE. - 8 bytes per PAGE_SIZE if memory controller is disabled. (even if configured.) On usual 8GB x86-32 server, this saves 8MB of NORMAL_ZONE memory. On my x86-64 server with 48GB of memory, this saves 96MB of memory. I think this reduction makes sense. By pre-allocation, kmalloc/kfree in charge/uncharge are removed. This means - we're not necessary to be afraid of kmalloc faiulre. (this can happen because of gfp_mask type.) - we can avoid calling kmalloc/kfree. - we can avoid allocating tons of small objects which can be fragmented. - we can know what amount of memory will be used for this extra-lru handling. I added printk message as "allocated %ld bytes of page_cgroup" "please try cgroup_disable=memory option if you don't want" maybe enough informative for users. Signed-off-by: KAMEZAWA Hiroyuki Reviewed-by: Balbir Singh Cc: Daisuke Nishimura Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 13 +----- include/linux/mm_types.h | 3 -- include/linux/mmzone.h | 14 +++++- include/linux/page_cgroup.h | 103 ++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 117 insertions(+), 16 deletions(-) create mode 100644 include/linux/page_cgroup.h (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index ee1b2fcb4410..1fbe14d39521 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -27,9 +27,6 @@ struct mm_struct; #ifdef CONFIG_CGROUP_MEM_RES_CTLR -#define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0) - -extern struct page_cgroup *page_get_page_cgroup(struct page *page); extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, @@ -72,16 +69,8 @@ extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, extern long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone, int priority, enum lru_list lru); -#else /* CONFIG_CGROUP_MEM_RES_CTLR */ -static inline void page_reset_bad_cgroup(struct page *page) -{ -} - -static inline struct page_cgroup *page_get_page_cgroup(struct page *page) -{ - return NULL; -} +#else /* CONFIG_CGROUP_MEM_RES_CTLR */ static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 9d49fa36bbef..fe825471d5aa 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -94,9 +94,6 @@ struct page { void *virtual; /* Kernel virtual address (NULL if not kmapped, ie. highmem) */ #endif /* WANT_PAGE_VIRTUAL */ -#ifdef CONFIG_CGROUP_MEM_RES_CTLR - unsigned long page_cgroup; -#endif }; /* diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index da2d053a95f1..35a7b5e19465 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -601,8 +601,11 @@ typedef struct pglist_data { struct zone node_zones[MAX_NR_ZONES]; struct zonelist node_zonelists[MAX_ZONELISTS]; int nr_zones; -#ifdef CONFIG_FLAT_NODE_MEM_MAP +#ifdef CONFIG_FLAT_NODE_MEM_MAP /* means !SPARSEMEM */ struct page *node_mem_map; +#ifdef CONFIG_CGROUP_MEM_RES_CTLR + struct page_cgroup *node_page_cgroup; +#endif #endif struct bootmem_data *bdata; #ifdef CONFIG_MEMORY_HOTPLUG @@ -931,6 +934,7 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn) #endif struct page; +struct page_cgroup; struct mem_section { /* * This is, logically, a pointer to an array of struct @@ -948,6 +952,14 @@ struct mem_section { /* See declaration of similar field in struct zone */ unsigned long *pageblock_flags; +#ifdef CONFIG_CGROUP_MEM_RES_CTLR + /* + * If !SPARSEMEM, pgdat doesn't have page_cgroup pointer. We use + * section. (see memcontrol.h/page_cgroup.h about this.) + */ + struct page_cgroup *page_cgroup; + unsigned long pad; +#endif }; #ifdef CONFIG_SPARSEMEM_EXTREME diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h new file mode 100644 index 000000000000..0fd39f2231ec --- /dev/null +++ b/include/linux/page_cgroup.h @@ -0,0 +1,103 @@ +#ifndef __LINUX_PAGE_CGROUP_H +#define __LINUX_PAGE_CGROUP_H + +#ifdef CONFIG_CGROUP_MEM_RES_CTLR +#include +/* + * Page Cgroup can be considered as an extended mem_map. + * A page_cgroup page is associated with every page descriptor. The + * page_cgroup helps us identify information about the cgroup + * All page cgroups are allocated at boot or memory hotplug event, + * then the page cgroup for pfn always exists. + */ +struct page_cgroup { + unsigned long flags; + struct mem_cgroup *mem_cgroup; + struct page *page; + struct list_head lru; /* per cgroup LRU list */ +}; + +void __init pgdat_page_cgroup_init(struct pglist_data *pgdat); +void __init page_cgroup_init(void); +struct page_cgroup *lookup_page_cgroup(struct page *page); + +enum { + /* flags for mem_cgroup */ + PCG_LOCK, /* page cgroup is locked */ + PCG_CACHE, /* charged as cache */ + PCG_USED, /* this object is in use. */ + /* flags for LRU placement */ + PCG_ACTIVE, /* page is active in this cgroup */ + PCG_FILE, /* page is file system backed */ + PCG_UNEVICTABLE, /* page is unevictableable */ +}; + +#define TESTPCGFLAG(uname, lname) \ +static inline int PageCgroup##uname(struct page_cgroup *pc) \ + { return test_bit(PCG_##lname, &pc->flags); } + +#define SETPCGFLAG(uname, lname) \ +static inline void SetPageCgroup##uname(struct page_cgroup *pc)\ + { set_bit(PCG_##lname, &pc->flags); } + +#define CLEARPCGFLAG(uname, lname) \ +static inline void ClearPageCgroup##uname(struct page_cgroup *pc) \ + { clear_bit(PCG_##lname, &pc->flags); } + +/* Cache flag is set only once (at allocation) */ +TESTPCGFLAG(Cache, CACHE) + +TESTPCGFLAG(Used, USED) +CLEARPCGFLAG(Used, USED) + +/* LRU management flags (from global-lru definition) */ +TESTPCGFLAG(File, FILE) +SETPCGFLAG(File, FILE) +CLEARPCGFLAG(File, FILE) + +TESTPCGFLAG(Active, ACTIVE) +SETPCGFLAG(Active, ACTIVE) +CLEARPCGFLAG(Active, ACTIVE) + +TESTPCGFLAG(Unevictable, UNEVICTABLE) +SETPCGFLAG(Unevictable, UNEVICTABLE) +CLEARPCGFLAG(Unevictable, UNEVICTABLE) + +static inline int page_cgroup_nid(struct page_cgroup *pc) +{ + return page_to_nid(pc->page); +} + +static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) +{ + return page_zonenum(pc->page); +} + +static inline void lock_page_cgroup(struct page_cgroup *pc) +{ + bit_spin_lock(PCG_LOCK, &pc->flags); +} + +static inline int trylock_page_cgroup(struct page_cgroup *pc) +{ + return bit_spin_trylock(PCG_LOCK, &pc->flags); +} + +static inline void unlock_page_cgroup(struct page_cgroup *pc) +{ + bit_spin_unlock(PCG_LOCK, &pc->flags); +} + +#else /* CONFIG_CGROUP_MEM_RES_CTLR */ +struct page_cgroup; + +static inline void pgdat_page_cgroup_init(struct pglist_data *pgdat) +{ +} + +static inline struct page_cgroup *lookup_page_cgroup(struct page *page) +{ + return NULL; +} +#endif +#endif -- cgit v1.2.1 From 3eda20118000941e7e8994fc5fac8706d8c10f00 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sat, 18 Oct 2008 20:28:19 -0700 Subject: seq_file: add seq_cpumask_list(), seq_nodemask_list() seq_cpumask_list(), seq_nodemask_list() are very like seq_cpumask(), seq_nodemask(), but they print human readable string. Signed-off-by: Lai Jiangshan Cc: Alexey Dobriyan Cc: Paul Menage Cc: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/seq_file.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index a1783b229ef4..dc50bcc282a8 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -60,6 +60,19 @@ static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask) return seq_bitmap(m, mask->bits, MAX_NUMNODES); } +int seq_bitmap_list(struct seq_file *m, unsigned long *bits, + unsigned int nr_bits); + +static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, NR_CPUS); +} + +static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, MAX_NUMNODES); +} + int single_open(struct file *, int (*)(struct seq_file *, void *), void *); int single_release(struct inode *, struct file *); void *__seq_open_private(struct file *, const struct seq_operations *, int); -- cgit v1.2.1 From c4596435404976b0ded9cdf18b456ca2e1408ddd Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Sat, 18 Oct 2008 20:28:21 -0700 Subject: bitmask: remove bitmap_scnprintf_len() bitmap_scnprintf_len() is not used now, so we remove it. Otherwise we have to maintain it and make its return value always equal to bitmap_scnprintf()'s return value. Signed-off-by: Lai Jiangshan Cc: Alexey Dobriyan Cc: Paul Menage Cc: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitmap.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 89781fd48859..1abfe664c444 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -110,7 +110,6 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits); extern int bitmap_scnprintf(char *buf, unsigned int len, const unsigned long *src, int nbits); -extern int bitmap_scnprintf_len(unsigned int nr_bits); extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user, unsigned long *dst, int nbits); extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen, -- cgit v1.2.1 From b747c8c102cc0677a7a8056a093f58d7c9b500e7 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 18 Oct 2008 20:28:21 -0700 Subject: make ptrace_untrace() static ptrace_untrace() can now become static. Signed-off-by: Adrian Bunk Cc: Oleg Nesterov Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ptrace.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index ea7416c901d1..22641d5d45df 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -94,7 +94,6 @@ extern void ptrace_notify(int exit_code); extern void __ptrace_link(struct task_struct *child, struct task_struct *new_parent); extern void __ptrace_unlink(struct task_struct *child); -extern void ptrace_untrace(struct task_struct *child); #define PTRACE_MODE_READ 1 #define PTRACE_MODE_ATTACH 2 /* Returns 0 on success, -errno on denial. */ -- cgit v1.2.1 From 656eb2cd5da153762f2e8419ca117ce12ef522c3 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Oct 2008 20:28:23 -0700 Subject: add CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS This adds a kconfig option to change the /proc/PID/coredump_filter default. Fedora has been carrying a trivial patch to change the hard-wired value for this default, since Fedora 8. The default default can't change safely because there are old GDB versions out there (all before 6.7) that are confused by the core dump files created by the MMF_DUMP_ELF_HEADERS setting. Signed-off-by: Roland McGrath Cc: Michael Kerrisk Cc: Oleg Nesterov Cc: Alan Cox Cc: Andi Kleen Cc: KOSAKI Motohiro Cc: Kawai Hidehiro Cc: Ingo Molnar Cc: David Jones Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 017cc914ef1f..f52dbd3587a7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -411,7 +411,13 @@ extern int get_dumpable(struct mm_struct *mm); (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) #define MMF_DUMP_FILTER_DEFAULT \ ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\ - (1 << MMF_DUMP_HUGETLB_PRIVATE)) + (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF) + +#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS +# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS) +#else +# define MMF_DUMP_MASK_DEFAULT_ELF 0 +#endif struct sighand_struct { atomic_t count; -- cgit v1.2.1 From 57cac4d1880527e0baf6c2fda529d2ad1d815aec Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Sat, 18 Oct 2008 20:28:25 -0700 Subject: kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE o elfcorehdr_addr is used by not only the code under CONFIG_PROC_VMCORE but also by the code which is not inside CONFIG_PROC_VMCORE. For example, is_kdump_kernel() is used by powerpc code to determine if kernel is booting after a panic then use previous kernel's TCE table. So even if CONFIG_PROC_VMCORE is not set in second kernel, one should be able to correctly determine that we are booting after a panic and setup calgary iommu accordingly. o So remove the assumption that elfcorehdr_addr is under CONFIG_PROC_VMCORE. o Move definition of elfcorehdr_addr to arch dependent crash files. (Unfortunately crash dump does not have an arch independent file otherwise that would have been the best place). o kexec.c is not the right place as one can Have CRASH_DUMP enabled in second kernel without KEXEC being enabled. o I don't see sh setup code parsing the command line for elfcorehdr_addr. I am wondering how does vmcore interface work on sh. Anyway, I am atleast defining elfcoredhr_addr so that compilation is not broken on sh. Signed-off-by: Vivek Goyal Acked-by: "Eric W. Biederman" Acked-by: Simon Horman Acked-by: Paul Mundt Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/crash_dump.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h index 025e4f575103..de027d1db745 100644 --- a/include/linux/crash_dump.h +++ b/include/linux/crash_dump.h @@ -9,11 +9,7 @@ #define ELFCORE_ADDR_MAX (-1ULL) -#ifdef CONFIG_PROC_VMCORE extern unsigned long long elfcorehdr_addr; -#else -static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; -#endif extern ssize_t copy_oldmem_page(unsigned long, char *, size_t, unsigned long, int); @@ -28,6 +24,16 @@ extern struct proc_dir_entry *proc_vmcore; #define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x)) +/* + * is_kdump_kernel() checks whether this kernel is booting after a panic of + * previous kernel or not. This is determined by checking if previous kernel + * has passed the elf core header address on command line. + * + * This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will + * return 1 if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic of + * previous kernel. + */ + static inline int is_kdump_kernel(void) { return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; -- cgit v1.2.1 From 85a0ee342e0c06c19d78fdf48307211c6cf18fcb Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Sat, 18 Oct 2008 20:28:29 -0700 Subject: kdump: add is_vmcore_usable() and vmcore_unusable() The usage of elfcorehdr_addr has changed recently such that being set to ELFCORE_ADDR_MAX is used by is_kdump_kernel() to indicate if the code is executing in a kernel executed as a crash kernel. However, arch/ia64/kernel/setup.c:reserve_elfcorehdr will rest elfcorehdr_addr to ELFCORE_ADDR_MAX on error, which means any subsequent calls to is_kdump_kernel() will return 0, even though they should return 1. Ok, at this point in time there are no subsequent calls, but I think its fair to say that there is ample scope for error or at the very least confusion. This patch add an extra state, ELFCORE_ADDR_ERR, which indicates that elfcorehdr_addr was passed on the command line, and thus execution is taking place in a crashdump kernel, but vmcore can't be used for some reason. This is tested for using is_vmcore_usable() and set using vmcore_unusable(). A subsequent patch makes use of this new code. To summarise, the states that elfcorehdr_addr can now be in are as follows: ELFCORE_ADDR_MAX: not a crashdump kernel ELFCORE_ADDR_ERR: crashdump kernel but vmcore is unusable any other value: crash dump kernel and vmcore is usable Signed-off-by: Simon Horman Cc: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/crash_dump.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include') diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h index de027d1db745..0acf3b737e2e 100644 --- a/include/linux/crash_dump.h +++ b/include/linux/crash_dump.h @@ -8,6 +8,7 @@ #include #define ELFCORE_ADDR_MAX (-1ULL) +#define ELFCORE_ADDR_ERR (-2ULL) extern unsigned long long elfcorehdr_addr; @@ -38,6 +39,29 @@ static inline int is_kdump_kernel(void) { return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; } + +/* is_vmcore_usable() checks if the kernel is booting after a panic and + * the vmcore region is usable. + * + * This makes use of the fact that due to alignment -2ULL is not + * a valid pointer, much in the vain of IS_ERR(), except + * dealing directly with an unsigned long long rather than a pointer. + */ + +static inline int is_vmcore_usable(void) +{ + return is_kdump_kernel() && elfcorehdr_addr != ELFCORE_ADDR_ERR ? 1 : 0; +} + +/* vmcore_unusable() marks the vmcore as unusable, + * without disturbing the logic of is_kdump_kernel() + */ + +static inline void vmcore_unusable(void) +{ + if (is_kdump_kernel()) + elfcorehdr_addr = ELFCORE_ADDR_ERR; +} #else /* !CONFIG_CRASH_DUMP */ static inline int is_kdump_kernel(void) { return 0; } #endif /* CONFIG_CRASH_DUMP */ -- cgit v1.2.1 From b8e465f4945bc0e9f324e3bbe15f5180a8e9a6fe Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sat, 18 Oct 2008 20:28:35 -0700 Subject: byteorder: add new headers for make headers-install Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/Kbuild | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/Kbuild b/include/linux/Kbuild index bf9aca548f14..e531783e5d78 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -183,6 +183,7 @@ unifdef-y += auto_fs.h unifdef-y += auxvec.h unifdef-y += binfmts.h unifdef-y += blktrace_api.h +unifdef-y += byteorder.h unifdef-y += capability.h unifdef-y += capi.h unifdef-y += cciss_ioctl.h @@ -340,6 +341,7 @@ unifdef-y += soundcard.h unifdef-y += stat.h unifdef-y += stddef.h unifdef-y += string.h +unifdef-y += swab.h unifdef-y += synclink.h unifdef-y += sysctl.h unifdef-y += tcp.h -- cgit v1.2.1 From acf0108a84edae22b99655eb2f6f6c9f7ec4d449 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sat, 18 Oct 2008 20:28:36 -0700 Subject: byteorder: use generic C version for value byteswapping This makes the new implementation of the byteorder helpers match the old in how it degraded when an arch-defined version was not available: 1) swab() - look for arch defined - if not, use generic c version 2) swabp() - look for arch-defined - if not, deref pointer and use swab() 3) swabs() - look for arch defined - if not, use swabp Signed-off-by: Harvey Harrison Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swab.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'include') diff --git a/include/linux/swab.h b/include/linux/swab.h index 270d5c208a89..bbed279f3b32 100644 --- a/include/linux/swab.h +++ b/include/linux/swab.h @@ -47,8 +47,6 @@ static inline __attribute_const__ __u16 ___swab16(__u16 val) { #ifdef __arch_swab16 return __arch_swab16(val); -#elif defined(__arch_swab16p) - return __arch_swab16p(&val); #else return __const_swab16(val); #endif @@ -58,8 +56,6 @@ static inline __attribute_const__ __u32 ___swab32(__u32 val) { #ifdef __arch_swab32 return __arch_swab32(val); -#elif defined(__arch_swab32p) - return __arch_swab32p(&val); #else return __const_swab32(val); #endif @@ -69,8 +65,6 @@ static inline __attribute_const__ __u64 ___swab64(__u64 val) { #ifdef __arch_swab64 return __arch_swab64(val); -#elif defined(__arch_swab64p) - return __arch_swab64p(&val); #elif defined(__SWAB_64_THRU_32__) __u32 h = val >> 32; __u32 l = val & ((1ULL << 32) - 1); @@ -84,8 +78,6 @@ static inline __attribute_const__ __u32 ___swahw32(__u32 val) { #ifdef __arch_swahw32 return __arch_swahw32(val); -#elif defined(__arch_swahw32p) - return __arch_swahw32p(&val); #else return __const_swahw32(val); #endif @@ -95,8 +87,6 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) { #ifdef __arch_swahb32 return __arch_swahb32(val); -#elif defined(__arch_swahb32p) - return __arch_swahb32p(&val); #else return __const_swahb32(val); #endif -- cgit v1.2.1 From 1d8cca44b6a244b7e378546d719041819049a0f9 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sat, 18 Oct 2008 20:28:37 -0700 Subject: byteorder: provide swabb.h generically in asm/byteorder.h This is needed during the transition to the new byteorder headers as the swabb.h functionality will be provided from asm/byteorder.h in the new version. To avoid breakage on arches still using the old implementation, provide swabb.h from asm/byteorder.h as well. Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/byteorder/Kbuild | 1 + include/linux/byteorder/big_endian.h | 1 + include/linux/byteorder/little_endian.h | 1 + 3 files changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/byteorder/Kbuild b/include/linux/byteorder/Kbuild index 1133d5f9d818..fbaa7f9cee32 100644 --- a/include/linux/byteorder/Kbuild +++ b/include/linux/byteorder/Kbuild @@ -1,3 +1,4 @@ unifdef-y += big_endian.h unifdef-y += little_endian.h unifdef-y += swab.h +unifdef-y += swabb.h diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h index 44f95b92393b..1cba3f3efe5f 100644 --- a/include/linux/byteorder/big_endian.h +++ b/include/linux/byteorder/big_endian.h @@ -10,6 +10,7 @@ #include #include +#include #define __constant_htonl(x) ((__force __be32)(__u32)(x)) #define __constant_ntohl(x) ((__force __u32)(__be32)(x)) diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h index 4cc170a31762..cedc1b5a289c 100644 --- a/include/linux/byteorder/little_endian.h +++ b/include/linux/byteorder/little_endian.h @@ -10,6 +10,7 @@ #include #include +#include #define __constant_htonl(x) ((__force __be32)___constant_swab32((x))) #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x)) -- cgit v1.2.1 From fdd2e5f88a259a537bb239e0c03c973cb6ea402a Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 18 Oct 2008 20:28:38 -0700 Subject: make mm/rmap.c:anon_vma_cachep static This patch makes the needlessly global anon_vma_cachep static. Signed-off-by: Adrian Bunk Reviewed-by: KOSAKI Motohiro Acked-by: Rik van Riel Acked-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rmap.h | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'include') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 1da48db8db09..89f0564b10c8 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -39,18 +39,6 @@ struct anon_vma { #ifdef CONFIG_MMU -extern struct kmem_cache *anon_vma_cachep; - -static inline struct anon_vma *anon_vma_alloc(void) -{ - return kmem_cache_alloc(anon_vma_cachep, GFP_KERNEL); -} - -static inline void anon_vma_free(struct anon_vma *anon_vma) -{ - kmem_cache_free(anon_vma_cachep, anon_vma); -} - static inline void anon_vma_lock(struct vm_area_struct *vma) { struct anon_vma *anon_vma = vma->anon_vma; -- cgit v1.2.1 From 357c6e63590895dc87cc9300f5a1c27544ea69e8 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 18 Oct 2008 20:28:42 -0700 Subject: rtc: use bcd2bin/bin2bcd Change various rtc related code to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros. Signed-off-by: Adrian Bunk Acked-by: Alessandro Zummo Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/rtc.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h index 71ef3f0b9685..89061c1a67d4 100644 --- a/include/asm-generic/rtc.h +++ b/include/asm-generic/rtc.h @@ -84,12 +84,12 @@ static inline unsigned int get_rtc_time(struct rtc_time *time) if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BCD_TO_BIN(time->tm_sec); - BCD_TO_BIN(time->tm_min); - BCD_TO_BIN(time->tm_hour); - BCD_TO_BIN(time->tm_mday); - BCD_TO_BIN(time->tm_mon); - BCD_TO_BIN(time->tm_year); + time->tm_sec = bcd2bin(time->tm_sec); + time->tm_min = bcd2bin(time->tm_min); + time->tm_hour = bcd2bin(time->tm_hour); + time->tm_mday = bcd2bin(time->tm_mday); + time->tm_mon = bcd2bin(time->tm_mon); + time->tm_year = bcd2bin(time->tm_year); } #ifdef CONFIG_MACH_DECSTATION @@ -159,12 +159,12 @@ static inline int set_rtc_time(struct rtc_time *time) if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BIN_TO_BCD(sec); - BIN_TO_BCD(min); - BIN_TO_BCD(hrs); - BIN_TO_BCD(day); - BIN_TO_BCD(mon); - BIN_TO_BCD(yrs); + sec = bin2bcd(sec); + min = bin2bcd(min); + hrs = bin2bcd(hrs); + day = bin2bcd(day); + mon = bin2bcd(mon); + yrs = bin2bcd(yrs); } save_control = CMOS_READ(RTC_CONTROL); -- cgit v1.2.1 From a0098efd6ee4e8c04d82d761aa1bb9ec7a0aa32d Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 18 Oct 2008 20:28:47 -0700 Subject: remove the obsolete BCD*BIN/BIN*BCD macros Remove the following obsolete macros: - BCD2BIN - BIN2BCD - BCD_TO_BIN - BIN_TO_BCD Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bcd.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include') diff --git a/include/linux/bcd.h b/include/linux/bcd.h index 7ac518e3c152..75f6d6e699a0 100644 --- a/include/linux/bcd.h +++ b/include/linux/bcd.h @@ -15,11 +15,4 @@ unsigned bcd2bin(unsigned char val) __attribute_const__; unsigned char bin2bcd(unsigned val) __attribute_const__; -#define BCD2BIN(val) bcd2bin(val) -#define BIN2BCD(val) bin2bcd(val) - -/* backwards compat */ -#define BCD_TO_BIN(val) ((val)=BCD2BIN(val)) -#define BIN_TO_BCD(val) ((val)=BIN2BCD(val)) - #endif /* _BCD_H */ -- cgit v1.2.1 From 5a85a7dda15f88b7f9c96c67fe826b5d0486d601 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 18 Oct 2008 20:28:48 -0700 Subject: include/linux/bcd.h: remove comments - the macros are gone - there's no more code in this file, LGPL + GPL = GPL, and the code that was moved to lib/bcd.c is anyway trivial Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bcd.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/linux/bcd.h b/include/linux/bcd.h index 75f6d6e699a0..22ea563ba3eb 100644 --- a/include/linux/bcd.h +++ b/include/linux/bcd.h @@ -1,12 +1,3 @@ -/* Permission is hereby granted to copy, modify and redistribute this code - * in terms of the GNU Library General Public License, Version 2 or later, - * at your option. - */ - -/* macros to translate to/from binary and binary-coded decimal (frequently - * found in RTC chips). - */ - #ifndef _BCD_H #define _BCD_H -- cgit v1.2.1 From 01e8ef11bc1a74e65678ed55795f59266d4add01 Mon Sep 17 00:00:00 2001 From: Parag Warudkar Date: Sat, 18 Oct 2008 20:28:50 -0700 Subject: x86: sysfs: kill owner field from attribute Tejun's commit 7b595756ec1f49e0049a9e01a1298d53a7faaa15 made sysfs attribute->owner unnecessary. But the field was left in the structure to ease the merge. It's been over a year since that change and it is now time to start killing attribute->owner along with its users - one arch at a time! This patch is attempt #1 to get rid of attribute->owner only for CONFIG_X86_64 or CONFIG_X86_32 . We will deal with other arches later on as and when possible - avr32 will be the next since that is something I can test. Compile (make allyesconfig / make allmodconfig / custom config) and boot tested. akpm: the idea is that we put the declaration of sttribute.owner inside `#ifndef CONFIG_X86'. But that proved to be too ambitious for now because new usages kept on turning up in subsystem trees. [akpm: remove the ifdef for now] Signed-off-by: Parag Warudkar Cc: Greg KH Cc: Ingo Molnar Cc: Tejun Heo Cc: Len Brown Cc: Jens Axboe Cc: Jean Delvare Cc: Roland Dreier Cc: David Brownell Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sysfs.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index b330e289d71f..9d68fed50f11 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -21,8 +21,9 @@ struct kobject; struct module; /* FIXME - * The *owner field is no longer used, but leave around - * until the tree gets cleaned up fully. + * The *owner field is no longer used. + * x86 tree has been cleaned up. The owner + * attribute is still left for other arches. */ struct attribute { const char *name; -- cgit v1.2.1 From edbc25caaa492a82e19baa915f1f6b0a0db6554d Mon Sep 17 00:00:00 2001 From: Milton Miller Date: Thu, 10 Jul 2008 16:29:37 -0500 Subject: PCI: remove dynids.use_driver_data The driver flag dynids.use_driver_data is almost consistently not set, and causes more problems than it solves. It was initially intended as a flag to indicate whether a driver's usage of driver_data had been carefully inspected and was ready for values from userspace. That audit was never done, so most drivers just get a 0 for driver_data when new IDs are added from userspace via sysfs. So remove the flag, allowing drivers to see the data directly (a followon patch validates the passed driver_data value against what the drivers expect). Acked-by: Greg Kroah-Hartman Acked-by: Jean Delvare Signed-off-by: Milton Miller Signed-off-by: Jesse Barnes --- include/linux/pci.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index acf8f24037cd..c989f58d09bf 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -347,7 +347,6 @@ struct pci_bus_region { struct pci_dynids { spinlock_t lock; /* protects list, index */ struct list_head list; /* for IDs added at runtime */ - unsigned int use_driver_data:1; /* pci_device_id->driver_data is used */ }; /* ---------------------------------------------------------------- */ -- cgit v1.2.1 From 0235c4fc7fc6f621dc0dd89eba102ad5aa373390 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 18 Aug 2008 21:38:00 +0200 Subject: PCI PM: Introduce function pci_wake_from_d3 Many device drivers use the following sequence of statements to enable the device to wake up the system while being in the D3_hot or D3_cold low power state: pci_enable_wake(pdev, PCI_D3hot, 1); pci_enable_wake(pdev, PCI_D3cold, 1); However, the second call is not necessary if the first one succeeds (the ordering of the statements above doesn't matter here) and it may even be harmful, because we are not supposed to enable PME# after the wake-up power has been enabled for the device. To allow drivers to overcome this problem, introduce function pci_wake_from_d3() that will enable the device to wake up the system from any of D3_hot and D3_cold as long as the wake-up from at least one of them is supported. Acked-by: Pavel Machek Signed-off-by: Rafael J. Wysocki Signed-off-by: Jesse Barnes --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index c989f58d09bf..f7e7dbc09194 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -644,6 +644,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); bool pci_pme_capable(struct pci_dev *dev, pci_power_t state); void pci_pme_active(struct pci_dev *dev, bool enable); int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable); +int pci_wake_from_d3(struct pci_dev *dev, bool enable); pci_power_t pci_target_state(struct pci_dev *dev); int pci_prepare_to_sleep(struct pci_dev *dev); int pci_back_from_sleep(struct pci_dev *dev); -- cgit v1.2.1 From 16dbef4a831782466b10d4ae56837c5ba17d1948 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 15 Aug 2008 19:36:45 -0700 Subject: PCI: change MSI-x vector to 32bit We are using 28bit pci (bus/dev/fn + 12 bits) as irq number, so the cache for irq number should be 32 bit too. Signed-off-by: Yinghai Lu Cc: Andrew Vasquez Signed-off-by: Jesse Barnes --- include/linux/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index f7e7dbc09194..8a4d0bebc311 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -725,7 +725,7 @@ enum pci_dma_burst_strategy { }; struct msix_entry { - u16 vector; /* kernel uses to write allocated vector */ + u32 vector; /* kernel uses to write allocated vector */ u16 entry; /* driver uses to specify entry, OS writes */ }; -- cgit v1.2.1 From 37a84ec668ba251ae02cf2c2c664baf6b247ae1f Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Thu, 28 Aug 2008 15:40:59 -0700 Subject: x86/PCI: irq and pci_ids patch for Intel Ibex Peak DeviceIDs This patch updates the Intel Ibex Peak (PCH) LPC and SMBus Controller DeviceIDs. The LPC Controller ID is set by Firmware within the range of 0x3b00-3b1f. This range is included in pci_ids.h using min and max values, and irq.c now has code to handle the range (in lieu of 32 additions to a SWITCH statement). The SMBus Controller ID is a fixed-value and will not change. Signed-off-by: Seth Heasley Acked-by: Jean Delvare Signed-off-by: Jesse Barnes --- include/linux/pci_ids.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 8edddc240e4f..e5d344bfcb7e 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2454,9 +2454,9 @@ #define PCI_DEVICE_ID_INTEL_ICH10_3 0x3a1a #define PCI_DEVICE_ID_INTEL_ICH10_4 0x3a30 #define PCI_DEVICE_ID_INTEL_ICH10_5 0x3a60 -#define PCI_DEVICE_ID_INTEL_PCH_0 0x3b10 -#define PCI_DEVICE_ID_INTEL_PCH_1 0x3b11 -#define PCI_DEVICE_ID_INTEL_PCH_2 0x3b30 +#define PCI_DEVICE_ID_INTEL_PCH_LPC_MIN 0x3b00 +#define PCI_DEVICE_ID_INTEL_PCH_LPC_MAX 0x3b1f +#define PCI_DEVICE_ID_INTEL_PCH_SMBUS 0x3b30 #define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f #define PCI_DEVICE_ID_INTEL_5100_16 0x65f0 #define PCI_DEVICE_ID_INTEL_5100_21 0x65f5 -- cgit v1.2.1 From c322b28a04c084a467a862766f74c40c917a721c Mon Sep 17 00:00:00 2001 From: "Zhao, Yu" Date: Mon, 13 Oct 2008 19:36:05 +0800 Subject: PCI: use same arg names in PCI_VDEVICE comment This cleanup makes the argument names in PCI_VDEVICE comment consistent with those used in its definition. Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- include/linux/pci.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 8a4d0bebc311..008005674b60 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -455,8 +455,8 @@ struct pci_driver { /** * PCI_VDEVICE - macro used to describe a specific pci device in short form - * @vend: the vendor name - * @dev: the 16 bit PCI Device ID + * @vendor: the vendor name + * @device: the 16 bit PCI Device ID * * This macro is used to create a struct pci_device_id that matches a * specific PCI device. The subvendor, and subdevice fields will be set -- cgit v1.2.1 From 58c3a727cb73b75a9104d295f096cca12959a5a5 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Tue, 14 Oct 2008 14:02:53 +0800 Subject: PCI: support PCIe ARI capability This patch adds support for PCI Express Alternative Routing-ID Interpretation (ARI) capability. The ARI capability extends the Function Number field of the PCI Express Endpoint by reusing the Device Number which is otherwise hardwired to 0. With ARI, an Endpoint can have up to 256 functions. Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- include/linux/pci.h | 1 + include/linux/pci_regs.h | 14 ++++++++++++++ 2 files changed, 15 insertions(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 008005674b60..7e9a1f0715e6 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -214,6 +214,7 @@ struct pci_dev { unsigned int broken_parity_status:1; /* Device generates false positive parity */ unsigned int msi_enabled:1; unsigned int msix_enabled:1; + unsigned int ari_enabled:1; /* ARI forwarding */ unsigned int is_managed:1; unsigned int is_pcie:1; pci_dev_flags_t dev_flags; diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 450684f7eaac..eb6686b88f9a 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -419,6 +419,10 @@ #define PCI_EXP_RTCTL_CRSSVE 0x10 /* CRS Software Visibility Enable */ #define PCI_EXP_RTCAP 30 /* Root Capabilities */ #define PCI_EXP_RTSTA 32 /* Root Status */ +#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */ +#define PCI_EXP_DEVCAP2_ARI 0x20 /* Alternative Routing-ID */ +#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */ +#define PCI_EXP_DEVCTL2_ARI 0x20 /* Alternative Routing-ID */ /* Extended Capabilities (PCI-X 2.0 and Express) */ #define PCI_EXT_CAP_ID(header) (header & 0x0000ffff) @@ -429,6 +433,7 @@ #define PCI_EXT_CAP_ID_VC 2 #define PCI_EXT_CAP_ID_DSN 3 #define PCI_EXT_CAP_ID_PWR 4 +#define PCI_EXT_CAP_ID_ARI 14 /* Advanced Error Reporting */ #define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */ @@ -536,5 +541,14 @@ #define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 hypertransport configuration */ #define HT_CAPTYPE_PM 0xE0 /* Hypertransport powermanagement configuration */ +/* Alternative Routing-ID Interpretation */ +#define PCI_ARI_CAP 0x04 /* ARI Capability Register */ +#define PCI_ARI_CAP_MFVC 0x0001 /* MFVC Function Groups Capability */ +#define PCI_ARI_CAP_ACS 0x0002 /* ACS Function Groups Capability */ +#define PCI_ARI_CAP_NFN(x) (((x) >> 8) & 0xff) /* Next Function Number */ +#define PCI_ARI_CTRL 0x06 /* ARI Control Register */ +#define PCI_ARI_CTRL_MFVC 0x0001 /* MFVC Function Groups Enable */ +#define PCI_ARI_CTRL_ACS 0x0002 /* ACS Function Groups Enable */ +#define PCI_ARI_CTRL_FG(x) (((x) >> 4) & 7) /* Function Group */ #endif /* LINUX_PCI_REGS_H */ -- cgit v1.2.1 From aa42d7c6138afdc54f74e971456a0fbfec16b77b Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Sun, 28 Sep 2008 16:36:11 -0700 Subject: PCI: introduce an pci_ioremap(pdev, barnr) function A common thing in many PCI drivers is to ioremap() an entire bar. This is a slightly fragile thing right now, needing both an address and a size, and many driver writers do.. various things there. This patch introduces an pci_ioremap() function taking just a PCI device struct and the bar number as arguments, and figures this all out itself, in one place. In addition, we can add various sanity checks to this function (the patch already checks to make sure that the bar in question really is a MEM bar; few to no drivers do that sort of thing). Hopefully with this type of API we get less chance of mistakes in drivers with ioremap() operations. Signed-off-by: Arjan van de Ven Signed-off-by: Jesse Barnes --- include/linux/pci.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 7e9a1f0715e6..46ad282ffe4d 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1119,5 +1119,18 @@ static inline void pci_mmcfg_early_init(void) { } static inline void pci_mmcfg_late_init(void) { } #endif +static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar) +{ + /* + * Make sure the BAR is actually a memory resource, not an IO resource + */ + if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) { + WARN_ON(1); + return NULL; + } + return ioremap_nocache(pci_resource_start(pdev, bar), + pci_resource_len(pdev, bar)); +} + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ -- cgit v1.2.1 From 0927678f55c9a50c296f7e6dae85e87b8236e155 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Sat, 18 Oct 2008 17:33:19 -0700 Subject: PCI: use pci_find_ext_capability everywhere Remove some open coded (and buggy) versions of pci_find_ext_capability in favor of the real routine in the PCI core. Tested-by: Tomasz Czernecki Acked-by: Andrew Vasquez Reviewed-by: Matthew Wilcox Signed-off-by: Jesse Barnes --- include/linux/aer.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include') diff --git a/include/linux/aer.h b/include/linux/aer.h index f2518141de88..a2383a72356a 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -18,10 +18,6 @@ static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) { return -EINVAL; } -static inline int pci_find_aer_capability(struct pci_dev *dev) -{ - return 0; -} static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev) { return -EINVAL; -- cgit v1.2.1 From 270c66be9b4a6f2be53ef3aec5dc8e7b07782ec9 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Sun, 19 Oct 2008 20:35:20 +0800 Subject: PCI: fix AER capability check The 'use pci_find_ext_capability everywhere' cleanup brought a new bug, which makes the AER stop working. Fix it by actually using find_ext_cap instead of just find_cap. Drop the unused config space size define while we're at it. Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- include/linux/aer.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/aer.h b/include/linux/aer.h index a2383a72356a..f7df1eefc107 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -10,7 +10,6 @@ #if defined(CONFIG_PCIEAER) /* pci-e port driver needs this function to enable aer */ extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_find_aer_capability(struct pci_dev *dev); extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); #else -- cgit v1.2.1 From 96499871f45b9126157b1a5c512d6e30f1635225 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 20 Oct 2008 19:45:43 +0200 Subject: PCI: fix pci_ioremap_bar() on s390 s390 doesn't have ioremap_*, so protect the definition of the new pci_ioremap_bar function with CONFIG_HAS_IOMEM to avoid build breakage. Acked-by: Arjan van de Ven Signed-off-by: Heiko Carstens Signed-off-by: Jesse Barnes --- include/linux/pci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 46ad282ffe4d..085187be29c7 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1119,6 +1119,7 @@ static inline void pci_mmcfg_early_init(void) { } static inline void pci_mmcfg_late_init(void) { } #endif +#ifdef CONFIG_HAS_IOMEM static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar) { /* @@ -1131,6 +1132,7 @@ static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar) return ioremap_nocache(pci_resource_start(pdev, bar), pci_resource_len(pdev, bar)); } +#endif #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ -- cgit v1.2.1 From f6f286f33e843862c559bfea9281318c4cdec6b0 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 20 Oct 2008 14:41:03 -0700 Subject: fix WARN() for PPC powerpc doesn't use the generic WARN_ON infrastructure. The newly introduced WARN() as a result didn't print the message, this patch adds the printk for this specific case. Signed-off-by: Arjan van de Ven Signed-off-by: Linus Torvalds --- include/asm-generic/bug.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 0f6dabd4b517..12c07c1866b2 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -41,7 +41,7 @@ extern void warn_slowpath(const char *file, const int line, #define __WARN() warn_on_slowpath(__FILE__, __LINE__) #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) #else -#define __WARN_printf(arg...) __WARN() +#define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) #endif #ifndef WARN_ON -- cgit v1.2.1