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-rw-r--r--arch/arm/Kconfig6
-rw-r--r--arch/arm/boot/compressed/head-xscale.S7
-rw-r--r--arch/arm/configs/badge4_defconfig29
-rw-r--r--arch/arm/configs/h3600_defconfig24
-rw-r--r--arch/arm/configs/hackkit_defconfig22
-rw-r--r--arch/arm/kernel/entry-armv.S16
-rw-r--r--arch/arm/kernel/traps.c49
-rw-r--r--arch/arm/lib/io-writesw-armv4.S6
-rw-r--r--arch/arm/mach-integrator/integrator_cp.c1
-rw-r--r--arch/arm/mach-pxa/lubbock.c30
-rw-r--r--arch/arm/mach-pxa/mainstone.c40
-rw-r--r--arch/arm/mach-pxa/pm.c32
-rw-r--r--arch/arm/mach-pxa/pxa25x.c33
-rw-r--r--arch/arm/mach-pxa/pxa27x.c36
-rw-r--r--arch/arm/mach-s3c2410/dma.c4
-rw-r--r--arch/arm/mach-sa1100/Kconfig2
-rw-r--r--arch/arm/mach-versatile/core.c2
-rw-r--r--arch/arm/mm/Kconfig15
-rw-r--r--arch/arm/mm/Makefile2
-rw-r--r--arch/arm/mm/copypage-xscale.S113
-rw-r--r--arch/arm/mm/copypage-xscale.c131
-rw-r--r--arch/arm/mm/minicache.c73
22 files changed, 420 insertions, 253 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index bf397a9f8ac2..475950c8a831 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -497,7 +497,7 @@ source "drivers/cpufreq/Kconfig"
config CPU_FREQ_SA1100
bool
- depends on CPU_FREQ && (SA1100_LART || SA1100_PLEB)
+ depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
default y
config CPU_FREQ_SA1110
@@ -689,7 +689,9 @@ source "drivers/block/Kconfig"
source "drivers/acorn/block/Kconfig"
-if ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
+if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
+ || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
+ || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
source "drivers/ide/Kconfig"
endif
diff --git a/arch/arm/boot/compressed/head-xscale.S b/arch/arm/boot/compressed/head-xscale.S
index 665bd2c20743..d3fe2533907e 100644
--- a/arch/arm/boot/compressed/head-xscale.S
+++ b/arch/arm/boot/compressed/head-xscale.S
@@ -47,3 +47,10 @@ __XScale_start:
orr r7, r7, #(MACH_TYPE_GTWX5715 & 0xff00)
#endif
+#ifdef CONFIG_ARCH_IXP2000
+ mov r1, #-1
+ mov r0, #0xd6000000
+ str r1, [r0, #0x14]
+ str r1, [r0, #0x18]
+#endif
+
diff --git a/arch/arm/configs/badge4_defconfig b/arch/arm/configs/badge4_defconfig
index 2b4059d2f8e4..5d92af975d87 100644
--- a/arch/arm/configs/badge4_defconfig
+++ b/arch/arm/configs/badge4_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.12-rc1-bk2
-# Sat Mar 26 21:32:26 2005
+# Linux kernel version: 2.6.12-rc6-git3
+# Thu Jun 9 19:00:50 2005
#
CONFIG_ARM=y
CONFIG_MMU=y
@@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
@@ -34,6 +35,8 @@ CONFIG_EMBEDDED=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
@@ -109,7 +112,6 @@ CONFIG_CPU_ABRT_EV4=y
CONFIG_CPU_CACHE_V4WB=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_TLB_V4WB=y
-CONFIG_CPU_MINICACHE=y
#
# Processor Features
@@ -122,6 +124,7 @@ CONFIG_FORCE_MAX_ZONEORDER=9
# Bus support
#
CONFIG_ISA=y
+CONFIG_ISA_DMA_API=y
#
# PCCARD (PCMCIA/CardBus) support
@@ -131,6 +134,7 @@ CONFIG_ISA=y
#
# Kernel Features
#
+# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
CONFIG_DISCONTIGMEM=y
# CONFIG_LEDS is not set
@@ -152,12 +156,14 @@ CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
-CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
-# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
-# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_SA1100=y
#
# Floating point emulation
@@ -294,7 +300,6 @@ CONFIG_PARPORT_NOT_PC=y
#
# Block devices
#
-# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
@@ -428,7 +433,6 @@ CONFIG_NET=y
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
@@ -526,6 +530,7 @@ CONFIG_IRDA_ULTRA=y
# CONFIG_SMC_IRCC_FIR is not set
# CONFIG_ALI_FIR is not set
CONFIG_SA1100_FIR=y
+# CONFIG_VIA_FIR is not set
CONFIG_BT=m
CONFIG_BT_L2CAP=m
# CONFIG_BT_SCO is not set
@@ -618,7 +623,6 @@ CONFIG_NET_WIRELESS=y
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
#
# Character devices
@@ -687,7 +691,6 @@ CONFIG_RTC=m
#
# TPM devices
#
-# CONFIG_TCG_TPM is not set
#
# I2C support
@@ -736,6 +739,7 @@ CONFIG_I2C_ELEKTOR=m
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
@@ -747,6 +751,7 @@ CONFIG_I2C_ELEKTOR=m
#
# Other I2C Chip support
#
+# CONFIG_SENSORS_DS1337 is not set
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_SENSORS_PCF8591 is not set
@@ -871,7 +876,6 @@ CONFIG_USB_PRINTER=m
#
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DEBUG=y
-# CONFIG_USB_STORAGE_RW_DETECT is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
@@ -954,9 +958,11 @@ CONFIG_USB_USS720=m
#
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
+# CONFIG_USB_SERIAL_AIRPRIME is not set
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
+# CONFIG_USB_SERIAL_CP2101 is not set
# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
@@ -985,6 +991,7 @@ CONFIG_USB_SERIAL_KEYSPAN=m
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_PL2303=m
+# CONFIG_USB_SERIAL_HP4X is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_TI is not set
CONFIG_USB_SERIAL_CYBERJACK=m
diff --git a/arch/arm/configs/h3600_defconfig b/arch/arm/configs/h3600_defconfig
index b4e297dd54b2..b9de07de80fe 100644
--- a/arch/arm/configs/h3600_defconfig
+++ b/arch/arm/configs/h3600_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.12-rc1-bk2
-# Mon Mar 28 00:02:26 2005
+# Linux kernel version: 2.6.12-rc4
+# Thu Jun 9 01:59:03 2005
#
CONFIG_ARM=y
CONFIG_MMU=y
@@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
@@ -33,6 +34,8 @@ CONFIG_KOBJECT_UEVENT=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
@@ -120,6 +123,7 @@ CONFIG_CPU_MINICACHE=y
# Bus support
#
CONFIG_ISA=y
+CONFIG_ISA_DMA_API=y
#
# PCCARD (PCMCIA/CardBus) support
@@ -138,6 +142,7 @@ CONFIG_PCMCIA_SA1100=y
#
# Kernel Features
#
+# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
CONFIG_DISCONTIGMEM=y
# CONFIG_LEDS is not set
@@ -159,12 +164,13 @@ CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
-CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
-# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
-CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
+# CONFIG_CPU_FREQ_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
-# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
+CONFIG_CPU_FREQ_SA1100=y
#
# Floating point emulation
@@ -298,7 +304,6 @@ CONFIG_MTD_SA1100=y
#
# Block devices
#
-# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
@@ -379,7 +384,6 @@ CONFIG_NET=y
# Networking options
#
# CONFIG_PACKET is not set
-# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
@@ -476,6 +480,7 @@ CONFIG_IRCOMM=m
# CONFIG_SMC_IRCC_FIR is not set
# CONFIG_ALI_FIR is not set
CONFIG_SA1100_FIR=m
+# CONFIG_VIA_FIR is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
@@ -647,7 +652,6 @@ CONFIG_LEGACY_PTY_COUNT=256
#
# TPM devices
#
-# CONFIG_TCG_TPM is not set
#
# I2C support
@@ -676,9 +680,11 @@ CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SOFT_CURSOR=y
+# CONFIG_FB_MACMODES is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
CONFIG_FB_SA1100=y
+# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set
#
diff --git a/arch/arm/configs/hackkit_defconfig b/arch/arm/configs/hackkit_defconfig
index 6987c8c5ddb4..fb41a36a5a68 100644
--- a/arch/arm/configs/hackkit_defconfig
+++ b/arch/arm/configs/hackkit_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.12-rc1-bk2
-# Mon Mar 28 00:22:34 2005
+# Linux kernel version: 2.6.12-rc6-git3
+# Thu Jun 9 20:58:58 2005
#
CONFIG_ARM=y
CONFIG_MMU=y
@@ -16,6 +16,7 @@ CONFIG_GENERIC_IOMAP=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
@@ -34,6 +35,8 @@ CONFIG_KOBJECT_UEVENT=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
@@ -109,7 +112,6 @@ CONFIG_CPU_ABRT_EV4=y
CONFIG_CPU_CACHE_V4WB=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_TLB_V4WB=y
-CONFIG_CPU_MINICACHE=y
#
# Processor Features
@@ -119,6 +121,7 @@ CONFIG_CPU_MINICACHE=y
# Bus support
#
CONFIG_ISA=y
+CONFIG_ISA_DMA_API=y
#
# PCCARD (PCMCIA/CardBus) support
@@ -128,6 +131,7 @@ CONFIG_ISA=y
#
# Kernel Features
#
+# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
CONFIG_DISCONTIGMEM=y
CONFIG_LEDS=y
@@ -151,12 +155,14 @@ CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
-CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
-# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
-# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_SA1100=y
#
# Floating point emulation
@@ -280,7 +286,6 @@ CONFIG_MTD_CFI_UTIL=y
#
# Block devices
#
-# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
@@ -338,7 +343,6 @@ CONFIG_NET=y
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
@@ -484,7 +488,6 @@ CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
#
# Character devices
@@ -533,7 +536,6 @@ CONFIG_LEGACY_PTY_COUNT=256
#
# TPM devices
#
-# CONFIG_TCG_TPM is not set
#
# I2C support
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 4eb36155dc93..e14278d59882 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -269,7 +269,7 @@ __pabt_svc:
add r5, sp, #S_PC
ldmia r7, {r2 - r4} @ Get USR pc, cpsr
-#if __LINUX_ARM_ARCH__ < 6
+#if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
@ make sure our user space atomic helper is aborted
cmp r2, #VIRT_OFFSET
bichs r3, r3, #PSR_Z_BIT
@@ -616,11 +616,17 @@ __kuser_helper_start:
__kuser_cmpxchg: @ 0xffff0fc0
-#if __LINUX_ARM_ARCH__ < 6
+#if defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
-#ifdef CONFIG_SMP /* sanity check */
-#error "CONFIG_SMP on a machine supporting pre-ARMv6 processors?"
-#endif
+ /*
+ * Poor you. No fast solution possible...
+ * The kernel itself must perform the operation.
+ * A special ghost syscall is used for that (see traps.c).
+ */
+ swi #0x9ffff0
+ mov pc, lr
+
+#elif __LINUX_ARM_ARCH__ < 6
/*
* Theory of operation:
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 14df16b983f4..45d2a032d890 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -464,6 +464,55 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
#endif
return 0;
+#ifdef CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG
+ /*
+ * Atomically store r1 in *r2 if *r2 is equal to r0 for user space.
+ * Return zero in r0 if *MEM was changed or non-zero if no exchange
+ * happened. Also set the user C flag accordingly.
+ * If access permissions have to be fixed up then non-zero is
+ * returned and the operation has to be re-attempted.
+ *
+ * *NOTE*: This is a ghost syscall private to the kernel. Only the
+ * __kuser_cmpxchg code in entry-armv.S should be aware of its
+ * existence. Don't ever use this from user code.
+ */
+ case 0xfff0:
+ {
+ extern void do_DataAbort(unsigned long addr, unsigned int fsr,
+ struct pt_regs *regs);
+ unsigned long val;
+ unsigned long addr = regs->ARM_r2;
+ struct mm_struct *mm = current->mm;
+ pgd_t *pgd; pmd_t *pmd; pte_t *pte;
+
+ regs->ARM_cpsr &= ~PSR_C_BIT;
+ spin_lock(&mm->page_table_lock);
+ pgd = pgd_offset(mm, addr);
+ if (!pgd_present(*pgd))
+ goto bad_access;
+ pmd = pmd_offset(pgd, addr);
+ if (!pmd_present(*pmd))
+ goto bad_access;
+ pte = pte_offset_map(pmd, addr);
+ if (!pte_present(*pte) || !pte_write(*pte))
+ goto bad_access;
+ val = *(unsigned long *)addr;
+ val -= regs->ARM_r0;
+ if (val == 0) {
+ *(unsigned long *)addr = regs->ARM_r1;
+ regs->ARM_cpsr |= PSR_C_BIT;
+ }
+ spin_unlock(&mm->page_table_lock);
+ return val;
+
+ bad_access:
+ spin_unlock(&mm->page_table_lock);
+ /* simulate a read access fault */
+ do_DataAbort(addr, 15 + (1 << 11), regs);
+ return -1;
+ }
+#endif
+
default:
/* Calls 9f00xx..9f07ff are defined to return -ENOSYS
if not implemented, rather than raising SIGILL. This
diff --git a/arch/arm/lib/io-writesw-armv4.S b/arch/arm/lib/io-writesw-armv4.S
index 6d1d7c27806e..5e240e452af6 100644
--- a/arch/arm/lib/io-writesw-armv4.S
+++ b/arch/arm/lib/io-writesw-armv4.S
@@ -87,9 +87,9 @@ ENTRY(__raw_writesw)
subs r2, r2, #2
orr ip, ip, r3, push_hbyte1
strh ip, [r0]
- bpl 2b
+ bpl 1b
-3: tst r2, #1
-2: movne ip, r3, lsr #8
+ tst r2, #1
+3: movne ip, r3, lsr #8
strneh ip, [r0]
mov pc, lr
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 3b948e8c2751..e0a01eef0993 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -83,7 +83,6 @@ static struct map_desc intcp_io_desc[] __initdata = {
{ IO_ADDRESS(INTEGRATOR_UART1_BASE), INTEGRATOR_UART1_BASE, SZ_4K, MT_DEVICE },
{ IO_ADDRESS(INTEGRATOR_DBG_BASE), INTEGRATOR_DBG_BASE, SZ_4K, MT_DEVICE },
{ IO_ADDRESS(INTEGRATOR_GPIO_BASE), INTEGRATOR_GPIO_BASE, SZ_4K, MT_DEVICE },
- { 0xfc900000, 0xc9000000, SZ_4K, MT_DEVICE },
{ 0xfca00000, 0xca000000, SZ_4K, MT_DEVICE },
{ 0xfcb00000, 0xcb000000, SZ_4K, MT_DEVICE },
};
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index dd012d6e2f5c..f2c9e0d2b24b 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/sysdev.h>
#include <linux/major.h>
#include <linux/fb.h>
#include <linux/interrupt.h>
@@ -106,6 +107,35 @@ static void __init lubbock_init_irq(void)
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
}
+#ifdef CONFIG_PM
+
+static int lubbock_irq_resume(struct sys_device *dev)
+{
+ LUB_IRQ_MASK_EN = lubbock_irq_enabled;
+ return 0;
+}
+
+static struct sysdev_class lubbock_irq_sysclass = {
+ set_kset_name("cpld_irq"),
+ .resume = lubbock_irq_resume,
+};
+
+static struct sys_device lubbock_irq_device = {
+ .cls = &lubbock_irq_sysclass,
+};
+
+static int __init lubbock_irq_device_init(void)
+{
+ int ret = sysdev_class_register(&lubbock_irq_sysclass);
+ if (ret == 0)
+ ret = sysdev_register(&lubbock_irq_device);
+ return ret;
+}
+
+device_initcall(lubbock_irq_device_init);
+
+#endif
+
static int lubbock_udc_is_connected(void)
{
return (LUB_MISC_RD & (1 << 9)) == 0;
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 3f952237ae3d..9896afca751f 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/sysdev.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
@@ -62,7 +63,6 @@ static struct irqchip mainstone_irq_chip = {
.unmask = mainstone_unmask_irq,
};
-
static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
struct pt_regs *regs)
{
@@ -100,6 +100,35 @@ static void __init mainstone_init_irq(void)
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
}
+#ifdef CONFIG_PM
+
+static int mainstone_irq_resume(struct sys_device *dev)
+{
+ MST_INTMSKENA = mainstone_irq_enabled;
+ return 0;
+}
+
+static struct sysdev_class mainstone_irq_sysclass = {
+ set_kset_name("cpld_irq"),
+ .resume = mainstone_irq_resume,
+};
+
+static struct sys_device mainstone_irq_device = {
+ .cls = &mainstone_irq_sysclass,
+};
+
+static int __init mainstone_irq_device_init(void)
+{
+ int ret = sysdev_class_register(&mainstone_irq_sysclass);
+ if (ret == 0)
+ ret = sysdev_register(&mainstone_irq_device);
+ return ret;
+}
+
+device_initcall(mainstone_irq_device_init);
+
+#endif
+
static struct resource smc91x_resources[] = {
[0] = {
@@ -304,6 +333,15 @@ static void __init mainstone_map_io(void)
PWER = 0xC0000002;
PRER = 0x00000002;
PFER = 0x00000002;
+ /* for use I SRAM as framebuffer. */
+ PSLR |= 0xF04;
+ PCFR = 0x66;
+ /* For Keypad wakeup. */
+ KPC &=~KPC_ASACT;
+ KPC |=KPC_AS;
+ PKWR = 0x000FD000;
+ /* Need read PKWR back after set it. */
+ PKWR;
}
MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index 82a4bf34c251..9799fe80df23 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -29,9 +29,6 @@
*/
#undef DEBUG
-extern void pxa_cpu_suspend(void);
-extern void pxa_cpu_resume(void);
-
#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
@@ -63,6 +60,12 @@ enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_ICMR,
SLEEP_SAVE_CKEN,
+#ifdef CONFIG_PXA27x
+ SLEEP_SAVE_MDREFR,
+ SLEEP_SAVE_PWER, SLEEP_SAVE_PCFR, SLEEP_SAVE_PRER,
+ SLEEP_SAVE_PFER, SLEEP_SAVE_PKWR,
+#endif
+
SLEEP_SAVE_CKSUM,
SLEEP_SAVE_SIZE
@@ -75,9 +78,7 @@ static int pxa_pm_enter(suspend_state_t state)
unsigned long checksum = 0;
struct timespec delta, rtc;
int i;
-
- if (state != PM_SUSPEND_MEM)
- return -EINVAL;
+ extern void pxa_cpu_pm_enter(suspend_state_t state);
#ifdef CONFIG_IWMMXT
/* force any iWMMXt context to ram **/
@@ -100,16 +101,17 @@ static int pxa_pm_enter(suspend_state_t state)
SAVE(GAFR2_L); SAVE(GAFR2_U);
#ifdef CONFIG_PXA27x
+ SAVE(MDREFR);
SAVE(GPLR3); SAVE(GPDR3); SAVE(GRER3); SAVE(GFER3); SAVE(PGSR3);
SAVE(GAFR3_L); SAVE(GAFR3_U);
+ SAVE(PWER); SAVE(PCFR); SAVE(PRER);
+ SAVE(PFER); SAVE(PKWR);
#endif
SAVE(ICMR);
ICMR = 0;
SAVE(CKEN);
- CKEN = 0;
-
SAVE(PSTR);
/* Note: wake up source are set up in each machine specific files */
@@ -123,16 +125,13 @@ static int pxa_pm_enter(suspend_state_t state)
/* Clear sleep reset status */
RCSR = RCSR_SMR;
- /* set resume return address */
- PSPR = virt_to_phys(pxa_cpu_resume);
-
/* before sleeping, calculate and save a checksum */
for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++)
checksum += sleep_save[i];
sleep_save[SLEEP_SAVE_CKSUM] = checksum;
/* *** go zzz *** */
- pxa_cpu_suspend();
+ pxa_cpu_pm_enter(state);
/* after sleeping, validate the checksum */
checksum = 0;
@@ -145,7 +144,7 @@ static int pxa_pm_enter(suspend_state_t state)
LUB_HEXLED = 0xbadbadc5;
#endif
while (1)
- pxa_cpu_suspend();
+ pxa_cpu_pm_enter(state);
}
/* ensure not to come back here if it wasn't intended */
@@ -162,8 +161,11 @@ static int pxa_pm_enter(suspend_state_t state)
RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
#ifdef CONFIG_PXA27x
+ RESTORE(MDREFR);
RESTORE(GAFR3_L); RESTORE(GAFR3_U); RESTORE_GPLEVEL(3);
RESTORE(GPDR3); RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3);
+ RESTORE(PWER); RESTORE(PCFR); RESTORE(PRER);
+ RESTORE(PFER); RESTORE(PKWR);
#endif
PSSR = PSSR_RDH | PSSR_PH;
@@ -197,7 +199,9 @@ unsigned long sleep_phys_sp(void *sp)
*/
static int pxa_pm_prepare(suspend_state_t state)
{
- return 0;
+ extern int pxa_cpu_pm_prepare(suspend_state_t state);
+
+ return pxa_cpu_pm_prepare(state);
}
/*
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index e887b7175ef3..7869c3b4e62f 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -16,6 +16,7 @@
* initialization stuff for PXA machines which can be overridden later if
* need be.
*/
+#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@@ -102,3 +103,35 @@ unsigned int get_lcdclk_frequency_10khz(void)
}
EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
+
+#ifdef CONFIG_PM
+
+int pxa_cpu_pm_prepare(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void pxa_cpu_pm_enter(suspend_state_t state)
+{
+ extern void pxa_cpu_suspend(unsigned int);
+ extern void pxa_cpu_resume(void);
+
+ CKEN = 0;
+
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ /* set resume return address */
+ PSPR = virt_to_phys(pxa_cpu_resume);
+ pxa_cpu_suspend(3);
+ break;
+ }
+}
+
+#endif
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 7e863afefb53..893964fb9659 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -120,6 +120,42 @@ EXPORT_SYMBOL(get_clk_frequency_khz);
EXPORT_SYMBOL(get_memclk_frequency_10khz);
EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
+#ifdef CONFIG_PM
+
+int pxa_cpu_pm_prepare(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+void pxa_cpu_pm_enter(suspend_state_t state)
+{
+ extern void pxa_cpu_standby(void);
+ extern void pxa_cpu_suspend(unsigned int);
+ extern void pxa_cpu_resume(void);
+
+ CKEN = CKEN22_MEMC | CKEN9_OSTIMER;
+
+ /* ensure voltage-change sequencer not initiated, which hangs */
+ PCFR &= ~PCFR_FVC;
+
+ /* Clear edge-detect status register. */
+ PEDR = 0xDF12FE1B;
+
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ /* set resume return address */
+ PSPR = virt_to_phys(pxa_cpu_resume);
+ pxa_cpu_suspend(3);
+ break;
+ }
+}
+
+#endif
/*
* device registration specific to PXA27x.
diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
index bc229fab86d4..c7c28890d406 100644
--- a/arch/arm/mach-s3c2410/dma.c
+++ b/arch/arm/mach-s3c2410/dma.c
@@ -785,6 +785,10 @@ int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client)
chan->client = NULL;
chan->in_use = 0;
+ if (chan->irq_claimed)
+ free_irq(chan->irq, (void *)chan);
+ chan->irq_claimed = 0;
+
local_irq_restore(flags);
return 0;
diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig
index 50cde576dadf..6923316b3d0d 100644
--- a/arch/arm/mach-sa1100/Kconfig
+++ b/arch/arm/mach-sa1100/Kconfig
@@ -150,7 +150,7 @@ config SA1100_SSP
config H3600_SLEEVE
tristate "Compaq iPAQ Handheld sleeve support"
- depends on SA1100_H3600
+ depends on SA1100_H3100 || SA1100_H3600
help
Choose this option to enable support for extension packs (sleeves)
for the Compaq iPAQ H3XXX series of handheld computers. This option
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 554e1bd30d6e..302c2a7b9b63 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -543,7 +543,7 @@ static void versatile_clcd_enable(struct clcd_fb *fb)
val |= SYS_CLCD_MODE_5551;
break;
case 6:
- val |= SYS_CLCD_MODE_565_BLSB;
+ val |= SYS_CLCD_MODE_565_RLSB;
break;
case 8:
val |= SYS_CLCD_MODE_888;
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 48bac7da8c70..3fefb43c67f7 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -228,7 +228,6 @@ config CPU_SA1100
select CPU_CACHE_V4WB
select CPU_CACHE_VIVT
select CPU_TLB_V4WB
- select CPU_MINICACHE
# XScale
config CPU_XSCALE
@@ -239,7 +238,6 @@ config CPU_XSCALE
select CPU_ABRT_EV5T
select CPU_CACHE_VIVT
select CPU_TLB_V4WBI
- select CPU_MINICACHE
# ARMv6
config CPU_V6
@@ -345,11 +343,6 @@ config CPU_TLB_V4WBI
config CPU_TLB_V6
bool
-config CPU_MINICACHE
- bool
- help
- Processor has a minicache.
-
comment "Processor Features"
config ARM_THUMB
@@ -429,3 +422,11 @@ config HAS_TLS_REG
assume directly accessing that register and always obtain the
expected value only on ARMv7 and above.
+config NEEDS_SYSCALL_FOR_CMPXCHG
+ bool
+ default y if SMP && (CPU_32v5 || CPU_32v4 || CPU_32v3)
+ help
+ SMP on a pre-ARMv6 processor? Well OK then.
+ Forget about fast user space cmpxchg support.
+ It is just not possible.
+
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index ccf316c11e02..59f47d4c2dfe 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -31,8 +31,6 @@ obj-$(CONFIG_CPU_COPY_V6) += copypage-v6.o mmu.o
obj-$(CONFIG_CPU_SA1100) += copypage-v4mc.o
obj-$(CONFIG_CPU_XSCALE) += copypage-xscale.o
-obj-$(CONFIG_CPU_MINICACHE) += minicache.o
-
obj-$(CONFIG_CPU_TLB_V3) += tlb-v3.o
obj-$(CONFIG_CPU_TLB_V4WT) += tlb-v4.o
obj-$(CONFIG_CPU_TLB_V4WB) += tlb-v4wb.o
diff --git a/arch/arm/mm/copypage-xscale.S b/arch/arm/mm/copypage-xscale.S
deleted file mode 100644
index bb277316ef52..000000000000
--- a/arch/arm/mm/copypage-xscale.S
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * linux/arch/arm/lib/copypage-xscale.S
- *
- * Copyright (C) 2001 Russell King
- *
- * 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 <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/constants.h>
-
-/*
- * General note:
- * We don't really want write-allocate cache behaviour for these functions
- * since that will just eat through 8K of the cache.
- */
-
- .text
- .align 5
-/*
- * XScale optimised copy_user_page
- * r0 = destination
- * r1 = source
- * r2 = virtual user address of ultimate destination page
- *
- * The source page may have some clean entries in the cache already, but we
- * can safely ignore them - break_cow() will flush them out of the cache
- * if we eventually end up using our copied page.
- *
- * What we could do is use the mini-cache to buffer reads from the source
- * page. We rely on the mini-cache being smaller than one page, so we'll
- * cycle through the complete cache anyway.
- */
-ENTRY(xscale_mc_copy_user_page)
- stmfd sp!, {r4, r5, lr}
- mov r5, r0
- mov r0, r1
- bl map_page_minicache
- mov r1, r5
- mov lr, #PAGE_SZ/64-1
-
- /*
- * Strangely enough, best performance is achieved
- * when prefetching destination as well. (NP)
- */
- pld [r0, #0]
- pld [r0, #32]
- pld [r1, #0]
- pld [r1, #32]
-
-1: pld [r0, #64]
- pld [r0, #96]
- pld [r1, #64]
- pld [r1, #96]
-
-2: ldrd r2, [r0], #8
- ldrd r4, [r0], #8
- mov ip, r1
- strd r2, [r1], #8
- ldrd r2, [r0], #8
- strd r4, [r1], #8
- ldrd r4, [r0], #8
- strd r2, [r1], #8
- strd r4, [r1], #8
- mcr p15, 0, ip, c7, c10, 1 @ clean D line
- ldrd r2, [r0], #8
- mcr p15, 0, ip, c7, c6, 1 @ invalidate D line
- ldrd r4, [r0], #8
- mov ip, r1
- strd r2, [r1], #8
- ldrd r2, [r0], #8
- strd r4, [r1], #8
- ldrd r4, [r0], #8
- strd r2, [r1], #8
- strd r4, [r1], #8
- mcr p15, 0, ip, c7, c10, 1 @ clean D line
- subs lr, lr, #1
- mcr p15, 0, ip, c7, c6, 1 @ invalidate D line
- bgt 1b
- beq 2b
-
- ldmfd sp!, {r4, r5, pc}
-
- .align 5
-/*
- * XScale optimised clear_user_page
- * r0 = destination
- * r1 = virtual user address of ultimate destination page
- */
-ENTRY(xscale_mc_clear_user_page)
- mov r1, #PAGE_SZ/32
- mov r2, #0
- mov r3, #0
-1: mov ip, r0
- strd r2, [r0], #8
- strd r2, [r0], #8
- strd r2, [r0], #8
- strd r2, [r0], #8
- mcr p15, 0, ip, c7, c10, 1 @ clean D line
- subs r1, r1, #1
- mcr p15, 0, ip, c7, c6, 1 @ invalidate D line
- bne 1b
- mov pc, lr
-
- __INITDATA
-
- .type xscale_mc_user_fns, #object
-ENTRY(xscale_mc_user_fns)
- .long xscale_mc_clear_user_page
- .long xscale_mc_copy_user_page
- .size xscale_mc_user_fns, . - xscale_mc_user_fns
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c
new file mode 100644
index 000000000000..42a6ee255ce0
--- /dev/null
+++ b/arch/arm/mm/copypage-xscale.c
@@ -0,0 +1,131 @@
+/*
+ * linux/arch/arm/lib/copypage-xscale.S
+ *
+ * Copyright (C) 1995-2005 Russell King
+ *
+ * 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 handles the mini data cache, as found on SA11x0 and XScale
+ * processors. When we copy a user page page, we map it in such a way
+ * that accesses to this page will not touch the main data cache, but
+ * will be cached in the mini data cache. This prevents us thrashing
+ * the main data cache on page faults.
+ */
+#include <linux/init.h>
+#include <linux/mm.h>
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+
+/*
+ * 0xffff8000 to 0xffffffff is reserved for any ARM architecture
+ * specific hacks for copying pages efficiently.
+ */
+#define COPYPAGE_MINICACHE 0xffff8000
+
+#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
+ L_PTE_CACHEABLE)
+
+#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
+
+static DEFINE_SPINLOCK(minicache_lock);
+
+/*
+ * XScale mini-dcache optimised copy_user_page
+ *
+ * We flush the destination cache lines just before we write the data into the
+ * corresponding address. Since the Dcache is read-allocate, this removes the
+ * Dcache aliasing issue. The writes will be forwarded to the write buffer,
+ * and merged as appropriate.
+ */
+static void __attribute__((naked))
+mc_copy_user_page(void *from, void *to)
+{
+ /*
+ * Strangely enough, best performance is achieved
+ * when prefetching destination as well. (NP)
+ */
+ asm volatile(
+ "stmfd sp!, {r4, r5, lr} \n\
+ mov lr, %2 \n\
+ pld [r0, #0] \n\
+ pld [r0, #32] \n\
+ pld [r1, #0] \n\
+ pld [r1, #32] \n\
+1: pld [r0, #64] \n\
+ pld [r0, #96] \n\
+ pld [r1, #64] \n\
+ pld [r1, #96] \n\
+2: ldrd r2, [r0], #8 \n\
+ ldrd r4, [r0], #8 \n\
+ mov ip, r1 \n\
+ strd r2, [r1], #8 \n\
+ ldrd r2, [r0], #8 \n\
+ strd r4, [r1], #8 \n\
+ ldrd r4, [r0], #8 \n\
+ strd r2, [r1], #8 \n\
+ strd r4, [r1], #8 \n\
+ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\
+ ldrd r2, [r0], #8 \n\
+ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\
+ ldrd r4, [r0], #8 \n\
+ mov ip, r1 \n\
+ strd r2, [r1], #8 \n\
+ ldrd r2, [r0], #8 \n\
+ strd r4, [r1], #8 \n\
+ ldrd r4, [r0], #8 \n\
+ strd r2, [r1], #8 \n\
+ strd r4, [r1], #8 \n\
+ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\
+ subs lr, lr, #1 \n\
+ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\
+ bgt 1b \n\
+ beq 2b \n\
+ ldmfd sp!, {r4, r5, pc} "
+ :
+ : "r" (from), "r" (to), "I" (PAGE_SIZE / 64 - 1));
+}
+
+void xscale_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
+{
+ spin_lock(&minicache_lock);
+
+ set_pte(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot));
+ flush_tlb_kernel_page(COPYPAGE_MINICACHE);
+
+ mc_copy_user_page((void *)COPYPAGE_MINICACHE, kto);
+
+ spin_unlock(&minicache_lock);
+}
+
+/*
+ * XScale optimised clear_user_page
+ */
+void __attribute__((naked))
+xscale_mc_clear_user_page(void *kaddr, unsigned long vaddr)
+{
+ asm volatile(
+ "mov r1, %0 \n\
+ mov r2, #0 \n\
+ mov r3, #0 \n\
+1: mov ip, r0 \n\
+ strd r2, [r0], #8 \n\
+ strd r2, [r0], #8 \n\
+ strd r2, [r0], #8 \n\
+ strd r2, [r0], #8 \n\
+ mcr p15, 0, ip, c7, c10, 1 @ clean D line\n\
+ subs r1, r1, #1 \n\
+ mcr p15, 0, ip, c7, c6, 1 @ invalidate D line\n\
+ bne 1b \n\
+ mov pc, lr"
+ :
+ : "I" (PAGE_SIZE / 32));
+}
+
+struct cpu_user_fns xscale_mc_user_fns __initdata = {
+ .cpu_clear_user_page = xscale_mc_clear_user_page,
+ .cpu_copy_user_page = xscale_mc_copy_user_page,
+};
diff --git a/arch/arm/mm/minicache.c b/arch/arm/mm/minicache.c
deleted file mode 100644
index dedf2ab01b2a..000000000000
--- a/arch/arm/mm/minicache.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * linux/arch/arm/mm/minicache.c
- *
- * Copyright (C) 2001 Russell King
- *
- * 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 handles the mini data cache, as found on SA11x0 and XScale
- * processors. When we copy a user page page, we map it in such a way
- * that accesses to this page will not touch the main data cache, but
- * will be cached in the mini data cache. This prevents us thrashing
- * the main data cache on page faults.
- */
-#include <linux/init.h>
-#include <linux/mm.h>
-
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-
-/*
- * 0xffff8000 to 0xffffffff is reserved for any ARM architecture
- * specific hacks for copying pages efficiently.
- */
-#define minicache_address (0xffff8000)
-#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
- L_PTE_CACHEABLE)
-
-static pte_t *minicache_pte;
-
-/*
- * Note that this is intended to be called only from the copy_user_page
- * asm code; anything else will require special locking to prevent the
- * mini-cache space being re-used. (Note: probably preempt unsafe).
- *
- * We rely on the fact that the minicache is 2K, and we'll be pushing
- * 4K of data through it, so we don't actually have to specifically
- * flush the minicache when we change the mapping.
- *
- * Note also: assert(PAGE_OFFSET <= virt < high_memory).
- * Unsafe: preempt, kmap.
- */
-unsigned long map_page_minicache(unsigned long virt)
-{
- set_pte(minicache_pte, pfn_pte(__pa(virt) >> PAGE_SHIFT, minicache_pgprot));
- flush_tlb_kernel_page(minicache_address);
-
- return minicache_address;
-}
-
-static int __init minicache_init(void)
-{
- pgd_t *pgd;
- pmd_t *pmd;
-
- spin_lock(&init_mm.page_table_lock);
-
- pgd = pgd_offset_k(minicache_address);
- pmd = pmd_alloc(&init_mm, pgd, minicache_address);
- if (!pmd)
- BUG();
- minicache_pte = pte_alloc_kernel(&init_mm, pmd, minicache_address);
- if (!minicache_pte)
- BUG();
-
- spin_unlock(&init_mm.page_table_lock);
-
- return 0;
-}
-
-core_initcall(minicache_init);
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