From 9f975356f7b17f2923a66b2f8bd505287ab4359c Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 6 Dec 2010 18:24:32 -0500 Subject: [IA64] Add DMA_ERROR_CODE define. This piggybacks on git commit 8fd524b355daef0945692227e726fb444cebcd4f ("x86: Kill bad_dma_address variable") wherein we use now the dma_map_ops->mapping_error to check for errors and the standard check is against DMA_ERROR_CODE. Introduce it to the IA64 world. CC: FUJITA Tomonori CC: Jesse Barnes Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Tony Luck --- arch/ia64/include/asm/dma-mapping.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index a2e7368a0150..4336d080b241 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -12,6 +12,8 @@ #define ARCH_HAS_DMA_GET_REQUIRED_MASK +#define DMA_ERROR_CODE 0 + extern struct dma_map_ops *dma_ops; extern struct ia64_machine_vector ia64_mv; extern void set_iommu_machvec(void); -- cgit v1.2.1 From 19df0c2fef010e94e90df514aaf4e73f6b80145c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 25 Jan 2011 14:26:50 +0100 Subject: percpu: align percpu readmostly subsection to cacheline Currently percpu readmostly subsection may share cachelines with other percpu subsections which may result in unnecessary cacheline bounce and performance degradation. This patch adds @cacheline parameter to PERCPU() and PERCPU_VADDR() linker macros, makes each arch linker scripts specify its cacheline size and use it to align percpu subsections. This is based on Shaohua's x86 only patch. Signed-off-by: Tejun Heo Cc: Shaohua Li --- arch/ia64/kernel/vmlinux.lds.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 5a4d044dcb1c..787de4a77d82 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -198,7 +198,7 @@ SECTIONS { /* Per-cpu data: */ . = ALIGN(PERCPU_PAGE_SIZE); - PERCPU_VADDR(PERCPU_ADDR, :percpu) + PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu) __phys_per_cpu_start = __per_cpu_load; /* * ensure percpu data fits -- cgit v1.2.1 From c16a87ce063f79e0ec7d25ce2950e1bc6db03c72 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 26 Jan 2011 20:05:50 +0000 Subject: rwsem: Cleanup includes All rwsem implementations include the same headers. Include them from include/linux/rwsem.h Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: David Howells Cc: Benjamin Herrenschmidt Cc: Matt Turner Acked-by: Tony Luck Acked-by: Heiko Carstens Cc: Paul Mundt Acked-by: David Miller Cc: Chris Zankel LKML-Reference: <20110126195833.483520950@linutronix.de> --- arch/ia64/include/asm/rwsem.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 215d5454c7d3..9bcf0792b01c 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -25,9 +25,6 @@ #error "Please don't include directly, use instead." #endif -#include -#include - #include /* -- cgit v1.2.1 From 1c8ed640d918290ddc1de5ada02ef6686a733c9f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 26 Jan 2011 20:05:56 +0000 Subject: rwsem: Move duplicate struct rwsem declaration to linux/rwsem.h The difference between these declarations is the data type of the count member and the lack of lockdep in some architectures/ long is equivivalent to signed long and the #ifdef guarded dep_map member does not hurt anyone. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: David Howells Cc: Benjamin Herrenschmidt Cc: Matt Turner Acked-by: Tony Luck Acked-by: Heiko Carstens Cc: Paul Mundt Acked-by: David Miller Cc: Chris Zankel LKML-Reference: <20110126195833.679641914@linutronix.de> Signed-off-by: Thomas Gleixner --- arch/ia64/include/asm/rwsem.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 9bcf0792b01c..1fe465804dc7 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -27,15 +27,6 @@ #include -/* - * the semaphore definition - */ -struct rw_semaphore { - signed long count; - spinlock_t wait_lock; - struct list_head wait_list; -}; - #define RWSEM_UNLOCKED_VALUE __IA64_UL_CONST(0x0000000000000000) #define RWSEM_ACTIVE_BIAS (1L) #define RWSEM_ACTIVE_MASK (0xffffffffL) -- cgit v1.2.1 From 12249b34414dba7f386aadcf6be7ca36c6878300 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 26 Jan 2011 20:06:00 +0000 Subject: rwsem: Move duplicate init macros and functions to linux/rwsem.h The rwsem initializers and related macros and functions are mostly the same. Some of them lack the lockdep initializer, but having it in place does not matter for architectures which do not support lockdep. powerpc, sparc, x86: No functional change sh, s390: Removes the duplicate init_rwsem (inline and #define) alpha, ia64, xtensa: Use the lockdep capable init function in lib/rwsem.c which is just uninlining the init function for the LOCKDEP=n case Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: David Howells Cc: Benjamin Herrenschmidt Cc: Matt Turner Acked-by: Tony Luck Acked-by: Heiko Carstens Cc: Paul Mundt Acked-by: David Miller Cc: Chris Zankel LKML-Reference: <20110126195833.771812729@linutronix.de> --- arch/ia64/include/asm/rwsem.h | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 1fe465804dc7..379854630e9d 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -34,26 +34,11 @@ #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) -#define __RWSEM_INITIALIZER(name) \ - { RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait_lock), \ - LIST_HEAD_INIT((name).wait_list) } - -#define DECLARE_RWSEM(name) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name) - extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem); extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); -static inline void -init_rwsem (struct rw_semaphore *sem) -{ - sem->count = RWSEM_UNLOCKED_VALUE; - spin_lock_init(&sem->wait_lock); - INIT_LIST_HEAD(&sem->wait_list); -} - /* * lock for reading */ -- cgit v1.2.1 From 41e5887fa39ab272d9266a09cbefdef270e28b93 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 26 Jan 2011 20:06:03 +0000 Subject: rwsem: Unify the duplicate rwsem_is_locked() inlines Instead of having the same implementation in each architecture, move it to linux/rwsem.h and remove the duplicates. It's unlikely that an arch will ever implement something different, but we can deal with that when it happens. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: David Howells Cc: Benjamin Herrenschmidt Cc: Matt Turner Acked-by: Tony Luck Acked-by: Heiko Carstens Cc: Paul Mundt Acked-by: David Miller Cc: Chris Zankel LKML-Reference: <20110126195833.876773757@linutronix.de> Signed-off-by: Thomas Gleixner --- arch/ia64/include/asm/rwsem.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 379854630e9d..148b61a96b8c 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -147,9 +147,4 @@ __downgrade_write (struct rw_semaphore *sem) #define rwsem_atomic_add(delta, sem) atomic64_add(delta, (atomic64_t *)(&(sem)->count)) #define rwsem_atomic_update(delta, sem) atomic64_add_return(delta, (atomic64_t *)(&(sem)->count)) -static inline int rwsem_is_locked(struct rw_semaphore *sem) -{ - return (sem->count != 0); -} - #endif /* _ASM_IA64_RWSEM_H */ -- cgit v1.2.1 From aac72277fda6ef788bb8d5deaa502ce9b9b6e472 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 26 Jan 2011 20:06:06 +0000 Subject: rwsem: Move duplicate function prototypes to linux/rwsem.h All architecture specific rwsem headers carry the same function prototypes. Just x86 adds asmregparm, which is an empty define on all other architectures. S390 has a stale rwsem_downgrade_write() prototype. Remove the duplicates and add the prototypes to linux/rwsem.h Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: David Howells Cc: Benjamin Herrenschmidt Cc: Richard Henderson Acked-by: Tony Luck Acked-by: Heiko Carstens Cc: Paul Mundt Acked-by: David Miller Cc: Chris Zankel LKML-Reference: <20110126195833.970840140@linutronix.de> Signed-off-by: Thomas Gleixner --- arch/ia64/include/asm/rwsem.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h index 148b61a96b8c..3027e7516d85 100644 --- a/arch/ia64/include/asm/rwsem.h +++ b/arch/ia64/include/asm/rwsem.h @@ -34,11 +34,6 @@ #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) -extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); - /* * lock for reading */ -- cgit v1.2.1 From 1aabd67d2e97e6affdf5a7c65f442ac91ace3f85 Mon Sep 17 00:00:00 2001 From: Torben Hohn Date: Thu, 27 Jan 2011 15:59:56 +0100 Subject: ia64: Switch do_timer() to xtime_update() local_cpu_data->itm_next = new_itm; does not need to be protected by xtime_lock. xtime_update() takes the lock itself. Signed-off-by: Torben Hohn Cc: Fenghua Yu Cc: Tony Luck Cc: Peter Zijlstra Cc: johnstul@us.ibm.com Cc: hch@infradead.org Cc: yong.zhang0@gmail.com LKML-Reference: <20110127145956.23248.49107.stgit@localhost> Signed-off-by: Thomas Gleixner --- arch/ia64/kernel/time.c | 19 +++++-------------- arch/ia64/xen/time.c | 13 +++++-------- 2 files changed, 10 insertions(+), 22 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 9702fa92489e..156ad803d5b7 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -190,19 +190,10 @@ timer_interrupt (int irq, void *dev_id) new_itm += local_cpu_data->itm_delta; - if (smp_processor_id() == time_keeper_id) { - /* - * Here we are in the timer irq handler. We have irqs locally - * disabled, but we don't know if the timer_bh is running on - * another CPU. We need to avoid to SMP race by acquiring the - * xtime_lock. - */ - write_seqlock(&xtime_lock); - do_timer(1); - local_cpu_data->itm_next = new_itm; - write_sequnlock(&xtime_lock); - } else - local_cpu_data->itm_next = new_itm; + if (smp_processor_id() == time_keeper_id) + xtime_update(1); + + local_cpu_data->itm_next = new_itm; if (time_after(new_itm, ia64_get_itc())) break; @@ -222,7 +213,7 @@ skip_process_time_accounting: * comfort, we increase the safety margin by * intentionally dropping the next tick(s). We do NOT * update itm.next because that would force us to call - * do_timer() which in turn would let our clock run + * xtime_update() which in turn would let our clock run * too fast (with the potentially devastating effect * of losing monotony of time). */ diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c index c1c544513e8d..1f8244a78bee 100644 --- a/arch/ia64/xen/time.c +++ b/arch/ia64/xen/time.c @@ -139,14 +139,11 @@ consider_steal_time(unsigned long new_itm) run_posix_cpu_timers(p); delta_itm += local_cpu_data->itm_delta * (stolen + blocked); - if (cpu == time_keeper_id) { - write_seqlock(&xtime_lock); - do_timer(stolen + blocked); - local_cpu_data->itm_next = delta_itm + new_itm; - write_sequnlock(&xtime_lock); - } else { - local_cpu_data->itm_next = delta_itm + new_itm; - } + if (cpu == time_keeper_id) + xtime_update(stolen + blocked); + + local_cpu_data->itm_next = delta_itm + new_itm; + per_cpu(xen_stolen_time, cpu) += NS_PER_TICK * stolen; per_cpu(xen_blocked_time, cpu) += NS_PER_TICK * blocked; } -- cgit v1.2.1 From 8e572bab39c484cdf512715f98626337f25cfc32 Mon Sep 17 00:00:00 2001 From: "Justin P. Mattock" Date: Wed, 2 Feb 2011 11:31:21 +0100 Subject: fix typos 'comamnd' -> 'command' in comments Signed-off-by: Justin P. Mattock --- arch/ia64/include/asm/perfmon.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/perfmon.h b/arch/ia64/include/asm/perfmon.h index 7f3333dd00e4..d551183fee90 100644 --- a/arch/ia64/include/asm/perfmon.h +++ b/arch/ia64/include/asm/perfmon.h @@ -7,7 +7,7 @@ #define _ASM_IA64_PERFMON_H /* - * perfmon comamnds supported on all CPU models + * perfmon commands supported on all CPU models */ #define PFM_WRITE_PMCS 0x01 #define PFM_WRITE_PMDS 0x02 -- cgit v1.2.1 From 10e82f6ce76351425644bccc56f8e2c2ad596ce6 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Tue, 22 Feb 2011 11:47:04 -0800 Subject: tty: simserial: now phase out the ioctl file pointer for good Alan missed the ia64 simulator serial driver (because it was hidden in arch/... rather than located under drivers/... where one might expect to find a driver). Drop the "file *" argument from rs_ioctl() in arch/ia64/hp/sim/simserial.c Signed-off-by: Tony Luck Cc: Alan Cox , Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 13633da0d3de..bff0824cf8a4 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -390,8 +390,7 @@ static void rs_unthrottle(struct tty_struct * tty) } -static int rs_ioctl(struct tty_struct *tty, struct file * file, - unsigned int cmd, unsigned long arg) +static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) && -- cgit v1.2.1 From a39676857459e8d4a0de2eac27206a3a01c1d6b8 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 24 Feb 2011 15:22:05 -0800 Subject: [IA64] disable interrupts at end of ia64_mca_cpe_int_handler() SAL requires that interrupts be enabled when making some calls to it to pick up error records, so we enable interrupts inside this handler. We should disable them again at the end. Found by a new WARN_ONCE that tglx added to handle_irq_event_percpu() Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 1753f6a30d55..e50d54e97f06 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -582,6 +582,8 @@ out: /* Get the CPE error record and log it */ ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CPE); + local_irq_disable(); + return IRQ_HANDLED; } -- cgit v1.2.1 From 03c8142bd2fb3b87effa6ecb2f8957be588bc85f Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Thu, 17 Feb 2011 11:04:20 +0000 Subject: xen: suspend: add "arch" to pre/post suspend hooks xen_pre_device_suspend is unused on ia64. Signed-off-by: Ian Campbell Reviewed-by: Konrad Rzeszutek Wilk --- arch/ia64/xen/suspend.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/xen/suspend.c b/arch/ia64/xen/suspend.c index fd66b048c6fa..419c8620945a 100644 --- a/arch/ia64/xen/suspend.c +++ b/arch/ia64/xen/suspend.c @@ -37,19 +37,14 @@ xen_mm_unpin_all(void) /* nothing */ } -void xen_pre_device_suspend(void) -{ - /* nothing */ -} - void -xen_pre_suspend() +xen_arch_pre_suspend() { /* nothing */ } void -xen_post_suspend(int suspend_cancelled) +xen_arch_post_suspend(int suspend_cancelled) { if (suspend_cancelled) return; -- cgit v1.2.1 From 44e69767cb7c3bc46e5370c39532c205d4347d80 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Tue, 1 Mar 2011 20:05:49 +0000 Subject: xen: ia64 build broken due to "xen: switch to new schedop hypercall by default." The git commit: > commit a8b7458363b9174f3c2196ca6085630b4b30b7a1 > Author: Ian Campbell > Date: Thu Feb 17 11:04:20 2011 +0000 > > xen: switch to new schedop hypercall by default. > > Rename old interface to sched_op_compat and rename sched_op_new to > simply sched_op. > breaks the IA64 build. This patch fixes it. Signed-off-by: Tony Luck Signed-off-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- arch/ia64/include/asm/xen/hypercall.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/xen/hypercall.h b/arch/ia64/include/asm/xen/hypercall.h index 96fc62366aa4..ed28bcd5bb85 100644 --- a/arch/ia64/include/asm/xen/hypercall.h +++ b/arch/ia64/include/asm/xen/hypercall.h @@ -107,7 +107,7 @@ extern unsigned long __hypercall(unsigned long a1, unsigned long a2, static inline int xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg) { - return _hypercall2(int, sched_op_new, cmd, arg); + return _hypercall2(int, sched_op, cmd, arg); } static inline long -- cgit v1.2.1 From faa18530b55d116ce5570b8e5be4350a5452ce69 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Wed, 2 Mar 2011 13:35:22 -0800 Subject: [IA64] Add CONFIG_MISC_DEVICES=y to configs that need it. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Uwe Kleine-König wrote: > While working on an defconfig (arm/mx27) I noticed that just updating > it results in removing CONFIG_EEPROM_AT24=y. The reason is that > since commit > > v2.6.36-5965-g5f2365d (misc devices: do not enable by default) > > MISC_DEVICES isn't enabled anymore by default. So all defconfigs that > have CONFIG_SOME_SYMBOL=y (or =m) (with SOME_SYMBOL depending on > MISC_DEVICES) but not CONFIG_MISC_DEVICES=y suffer from the same > problem. Reported-by: Uwe Kleine-König Signed-off-by: Tony Luck --- arch/ia64/configs/generic_defconfig | 1 + arch/ia64/configs/gensparse_defconfig | 1 + 2 files changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index 3ded8fe62759..1d7bca0a396d 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -233,3 +233,4 @@ CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_CRC_T10DIF=y +CONFIG_MISC_DEVICES=y diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig index 3a98b2dd58ac..b11fa880e4b6 100644 --- a/arch/ia64/configs/gensparse_defconfig +++ b/arch/ia64/configs/gensparse_defconfig @@ -208,3 +208,4 @@ CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_MUTEXES=y CONFIG_CRYPTO_MD5=y +CONFIG_MISC_DEVICES=y -- cgit v1.2.1 From ad7b67e5118738e49a14751944528eb26fd8d718 Mon Sep 17 00:00:00 2001 From: "Justin P. Mattock" Date: Sun, 27 Feb 2011 20:46:46 -0800 Subject: [IA64] setup.c Typo fix "Architechtuallly" s/Architechtuallly/Architecturally/ Signed-off-by: Justin P. Mattock Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index dbc4cbecb5ed..77db0b514fa4 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -592,7 +592,7 @@ void __cpuinit sn_cpu_init(void) /* * Don't check status. The SAL call is not supported on all PROMs * but a failure is harmless. - * Architechtuallly, cpu_init is always called twice on cpu 0. We + * Architecturally, cpu_init is always called twice on cpu 0. We * should set cpu_number on cpu 0 once. */ if (cpuid == 0) { -- cgit v1.2.1 From c1d036c4d1cb00b7e8473a2ad0a78f13e13a8183 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Thu, 24 Feb 2011 17:23:09 -0500 Subject: [IA64] mca.c: Fix cast from integer to pointer warning ia64_mca_cpu_init has a void *data local variable that is assigned the value from either __get_free_pages() or mca_bootmem(). The problem is that __get_free_pages returns an unsigned long and mca_bootmem, via alloc_bootmem(), returns a void *. format_mca_init_stack takes the void *, and it's also used with __pa(), but that casts it to long anyway. This results in the following build warning: arch/ia64/kernel/mca.c:1898: warning: assignment makes pointer from integer without a cast Cast the return of __get_free_pages to a void * to avoid the warning. Signed-off-by: Jeff Mahoney Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index e50d54e97f06..80d50b83d419 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1861,7 +1861,8 @@ ia64_mca_cpu_init(void *cpu_data) data = mca_bootmem(); first_time = 0; } else - data = __get_free_pages(GFP_KERNEL, get_order(sz)); + data = (void *)__get_free_pages(GFP_KERNEL, + get_order(sz)); if (!data) panic("Could not allocate MCA memory for cpu %d\n", cpu); -- cgit v1.2.1 From b4a6b3436531f6c5256e6d60d388c3c28ff1a0e9 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Thu, 24 Feb 2011 15:33:24 -0500 Subject: [IA64] tioca: Fix assignment from incompatible pointer warnings The prototype for sn_pci_provider->{dma_map,dma_map_consistent} expects an unsigned long instead of a u64. Signed-off-by: Jeff Mahoney Signed-off-by: Tony Luck --- arch/ia64/sn/pci/tioca_provider.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c index 4d4536e3b6f3..9c271be9919a 100644 --- a/arch/ia64/sn/pci/tioca_provider.c +++ b/arch/ia64/sn/pci/tioca_provider.c @@ -509,7 +509,7 @@ tioca_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir) * use the GART mapped mode. */ static u64 -tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags) +tioca_dma_map(struct pci_dev *pdev, unsigned long paddr, size_t byte_count, int dma_flags) { u64 mapaddr; -- cgit v1.2.1 From 37a9d912b24f96a0591773e6e6c3642991ae5a70 Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Thu, 10 Mar 2011 18:48:51 -0800 Subject: futex: Sanitize cmpxchg_futex_value_locked API The cmpxchg_futex_value_locked API was funny in that it returned either the original, user-exposed futex value OR an error code such as -EFAULT. This was confusing at best, and could be a source of livelocks in places that retry the cmpxchg_futex_value_locked after trying to fix the issue by running fault_in_user_writeable(). This change makes the cmpxchg_futex_value_locked API more similar to the get_futex_value_locked one, returning an error code and updating the original value through a reference argument. Signed-off-by: Michel Lespinasse Acked-by: Chris Metcalf [tile] Acked-by: Tony Luck [ia64] Acked-by: Thomas Gleixner Tested-by: Michal Simek [microblaze] Acked-by: David Howells [frv] Cc: Darren Hart Cc: Peter Zijlstra Cc: Matt Turner Cc: Russell King Cc: Ralf Baechle Cc: "James E.J. Bottomley" Cc: Benjamin Herrenschmidt Cc: Martin Schwidefsky Cc: Paul Mundt Cc: "David S. Miller" Cc: Linus Torvalds LKML-Reference: <20110311024851.GC26122@google.com> Signed-off-by: Thomas Gleixner --- arch/ia64/include/asm/futex.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index c7f0f062239c..b0728404dad0 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -100,23 +100,26 @@ futex_atomic_op_inuser (int encoded_op, int __user *uaddr) } static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) +futex_atomic_cmpxchg_inatomic(int *uval, int __user *uaddr, + int oldval, int newval) { if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; { - register unsigned long r8 __asm ("r8"); + register unsigned long r8 __asm ("r8") = 0; + unsigned long prev; __asm__ __volatile__( " mf;; \n" " mov ar.ccv=%3;; \n" "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" " .xdata4 \"__ex_table\", 1b-., 2f-. \n" "[2:]" - : "=r" (r8) + : "=r" (prev) : "r" (uaddr), "r" (newval), "rO" ((long) (unsigned) oldval) : "memory"); + *uval = prev; return r8; } } -- cgit v1.2.1 From 8d7718aa082aaf30a0b4989e1f04858952f941bc Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Thu, 10 Mar 2011 18:50:58 -0800 Subject: futex: Sanitize futex ops argument types Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic prototypes to use u32 types for the futex as this is the data type the futex core code uses all over the place. Signed-off-by: Michel Lespinasse Cc: Darren Hart Cc: Peter Zijlstra Cc: Matt Turner Cc: Russell King Cc: David Howells Cc: Tony Luck Cc: Michal Simek Cc: Ralf Baechle Cc: "James E.J. Bottomley" Cc: Benjamin Herrenschmidt Cc: Martin Schwidefsky Cc: Paul Mundt Cc: "David S. Miller" Cc: Chris Metcalf Cc: Linus Torvalds LKML-Reference: <20110311025058.GD26122@google.com> Signed-off-by: Thomas Gleixner --- arch/ia64/include/asm/futex.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index b0728404dad0..8428525ddb22 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -46,7 +46,7 @@ do { \ } while (0) static inline int -futex_atomic_op_inuser (int encoded_op, int __user *uaddr) +futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) { int op = (encoded_op >> 28) & 7; int cmp = (encoded_op >> 24) & 15; @@ -56,7 +56,7 @@ futex_atomic_op_inuser (int encoded_op, int __user *uaddr) if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) oparg = 1 << oparg; - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) + if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32))) return -EFAULT; pagefault_disable(); @@ -100,10 +100,10 @@ futex_atomic_op_inuser (int encoded_op, int __user *uaddr) } static inline int -futex_atomic_cmpxchg_inatomic(int *uval, int __user *uaddr, - int oldval, int newval) +futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, + u32 oldval, u32 newval) { - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) return -EFAULT; { -- cgit v1.2.1 From 4800cd8311f8a16a9a9f8515f2793d5761c44c41 Mon Sep 17 00:00:00 2001 From: matt mooney Date: Fri, 14 Jan 2011 06:12:28 -0800 Subject: ia64: change to new flag variables Replace EXTRA_CFLAGS with ccflags-y and EXTRA_AFLAGS with asflags-y. Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek --- arch/ia64/kvm/Makefile | 4 ++-- arch/ia64/sn/kernel/Makefile | 2 +- arch/ia64/sn/kernel/sn2/Makefile | 2 +- arch/ia64/sn/pci/Makefile | 2 +- arch/ia64/sn/pci/pcibr/Makefile | 2 +- arch/ia64/uv/kernel/Makefile | 2 +- 6 files changed, 7 insertions(+), 7 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kvm/Makefile b/arch/ia64/kvm/Makefile index 1089b3e918ac..db3d7c5d1071 100644 --- a/arch/ia64/kvm/Makefile +++ b/arch/ia64/kvm/Makefile @@ -45,8 +45,8 @@ FORCE : $(obj)/$(offsets-file) # Makefile for Kernel-based Virtual Machine module # -EXTRA_CFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/ -EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/ +ccflags-y := -Ivirt/kvm -Iarch/ia64/kvm/ +asflags-y := -Ivirt/kvm -Iarch/ia64/kvm/ common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \ coalesced_mmio.o irq_comm.o assigned-dev.o) diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile index 0591038735af..d27df1d45da7 100644 --- a/arch/ia64/sn/kernel/Makefile +++ b/arch/ia64/sn/kernel/Makefile @@ -7,7 +7,7 @@ # Copyright (C) 1999,2001-2006,2008 Silicon Graphics, Inc. All Rights Reserved. # -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \ huberror.o io_acpi_init.o io_common.o \ diff --git a/arch/ia64/sn/kernel/sn2/Makefile b/arch/ia64/sn/kernel/sn2/Makefile index 08e6565dc908..3d09108d4277 100644 --- a/arch/ia64/sn/kernel/sn2/Makefile +++ b/arch/ia64/sn/kernel/sn2/Makefile @@ -9,7 +9,7 @@ # sn2 specific kernel files # -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += cache.o io.o ptc_deadlock.o sn2_smp.o sn_proc_fs.o \ prominfo_proc.o timer.o timer_interrupt.o sn_hwperf.o diff --git a/arch/ia64/sn/pci/Makefile b/arch/ia64/sn/pci/Makefile index ad4ef34dfe26..df2a90145426 100644 --- a/arch/ia64/sn/pci/Makefile +++ b/arch/ia64/sn/pci/Makefile @@ -7,6 +7,6 @@ # # Makefile for the sn pci general routines. -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/ diff --git a/arch/ia64/sn/pci/pcibr/Makefile b/arch/ia64/sn/pci/pcibr/Makefile index 01192d3247dd..396bcae36309 100644 --- a/arch/ia64/sn/pci/pcibr/Makefile +++ b/arch/ia64/sn/pci/pcibr/Makefile @@ -7,7 +7,7 @@ # # Makefile for the sn2 io routines. -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += pcibr_dma.o pcibr_reg.o \ pcibr_ate.o pcibr_provider.o diff --git a/arch/ia64/uv/kernel/Makefile b/arch/ia64/uv/kernel/Makefile index 8d92b4684d8e..124e441d383d 100644 --- a/arch/ia64/uv/kernel/Makefile +++ b/arch/ia64/uv/kernel/Makefile @@ -7,7 +7,7 @@ # Copyright (C) 2008 Silicon Graphics, Inc. All Rights Reserved. # -EXTRA_CFLAGS += -Iarch/ia64/sn/include +ccflags-y := -Iarch/ia64/sn/include obj-y += setup.o obj-$(CONFIG_IA64_GENERIC) += machvec.o -- cgit v1.2.1 From 6b7e2d0991489559a1df4500d77f7b76c4607ed0 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Wed, 12 Jan 2011 15:40:31 +0800 Subject: KVM: Add "exiting guest mode" state Currently we keep track of only two states: guest mode and host mode. This patch adds an "exiting guest mode" state that tells us that an IPI will happen soon, so unless we need to wait for the IPI, we can avoid it completely. Also 1: No need atomically to read/write ->mode in vcpu's thread 2: reorganize struct kvm_vcpu to make ->mode and ->requests in the same cache line explicitly Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm-ia64.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 70d224d4264c..8213efe1998c 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -662,6 +662,7 @@ again: goto vcpu_run_fail; srcu_read_unlock(&vcpu->kvm->srcu, idx); + vcpu->mode = IN_GUEST_MODE; kvm_guest_enter(); /* @@ -683,6 +684,7 @@ again: */ barrier(); kvm_guest_exit(); + vcpu->mode = OUTSIDE_GUEST_MODE; preempt_enable(); idx = srcu_read_lock(&vcpu->kvm->srcu); -- cgit v1.2.1 From 504f52b5439aaf26d3e2c1d45ec10fce38c8dd27 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 22 Mar 2011 16:30:41 -0700 Subject: mm: NUMA aware alloc_task_struct_node() All kthreads being created from a single helper task, they all use memory from a single node for their kernel stack and task struct. This patch suite creates kthread_create_on_cpu(), adding a 'cpu' parameter to parameters already used by kthread_create(). This parameter serves in allocating memory for the new kthread on its memory node if available. Users of this new function are : ksoftirqd, kworker, migration, pktgend... This patch: Add a node parameter to alloc_task_struct(), and change its name to alloc_task_struct_node() This change is needed to allow NUMA aware kthread_create_on_cpu() Signed-off-by: Eric Dumazet Acked-by: David S. Miller Reviewed-by: Andi Kleen Acked-by: Rusty Russell Cc: Tejun Heo Cc: Tony Luck Cc: Fenghua Yu Cc: David Howells Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/include/asm/thread_info.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index b6a5ba2aca34..342004bbefe7 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -84,7 +84,14 @@ struct thread_info { #define end_of_stack(p) (unsigned long *)((void *)(p) + IA64_RBS_OFFSET) #define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR -#define alloc_task_struct() ((struct task_struct *)__get_free_pages(GFP_KERNEL | __GFP_COMP, KERNEL_STACK_SIZE_ORDER)) +#define alloc_task_struct_node(node) \ +({ \ + struct page *page = alloc_pages_node(node, GFP_KERNEL | __GFP_COMP, \ + KERNEL_STACK_SIZE_ORDER); \ + struct task_struct *ret = page ? page_address(page) : NULL; \ + \ + ret; +}) #define free_task_struct(tsk) free_pages((unsigned long) (tsk), KERNEL_STACK_SIZE_ORDER) #endif /* !__ASSEMBLY */ -- cgit v1.2.1 From b6a84016bd2598e35ead635147fa53619982648d Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 22 Mar 2011 16:30:42 -0700 Subject: mm: NUMA aware alloc_thread_info_node() Add a node parameter to alloc_thread_info(), and change its name to alloc_thread_info_node() This change is needed to allow NUMA aware kthread_create_on_cpu() Signed-off-by: Eric Dumazet Acked-by: David S. Miller Reviewed-by: Andi Kleen Acked-by: Rusty Russell Cc: Tejun Heo Cc: Tony Luck Cc: Fenghua Yu Cc: David Howells Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/include/asm/thread_info.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index 342004bbefe7..6392908e8f98 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -59,11 +59,12 @@ struct thread_info { #ifndef ASM_OFFSETS_C /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE)) -#define alloc_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) +#define alloc_thread_info_node(tsk, node) \ + ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) #define task_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) #else #define current_thread_info() ((struct thread_info *) 0) -#define alloc_thread_info(tsk) ((struct thread_info *) 0) +#define alloc_thread_info_node(tsk, node) ((struct thread_info *) 0) #define task_thread_info(tsk) ((struct thread_info *) 0) #endif #define free_thread_info(ti) /* nothing */ -- cgit v1.2.1 From 3e50594e8e72932ad4cfcb0b3cbdf58fc3bce416 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 22 Mar 2011 16:33:50 -0700 Subject: add the common dma_addr_t typedef to include/linux/types.h All architectures can use the common dma_addr_t typedef now. We can remove the arch specific dma_addr_t. Signed-off-by: FUJITA Tomonori Acked-by: Arnd Bergmann Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Ivan Kokshaysky Cc: Richard Henderson Cc: Matt Turner Cc: "Luck, Tony" Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/include/asm/types.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/types.h b/arch/ia64/include/asm/types.h index 93773fd37be0..82b3939d2718 100644 --- a/arch/ia64/include/asm/types.h +++ b/arch/ia64/include/asm/types.h @@ -40,9 +40,6 @@ struct fnptr { unsigned long gp; }; -/* DMA addresses are 64-bits wide, in general. */ -typedef u64 dma_addr_t; - # endif /* __KERNEL__ */ #endif /* !__ASSEMBLY__ */ -- cgit v1.2.1