Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-fixes

50 files changed, 459 insertions, 307 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 7049815d66d5..68d6494c0389 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -233,12 +233,13 @@ static void __init cacheid_init(void)
         unsigned int cachetype = read_cpuid_cachetype();
         unsigned int arch = cpu_architecture();
 
-        if (arch >= CPU_ARCH_ARMv7) {
-                cacheid = CACHEID_VIPT_NONALIASING;
-                if ((cachetype & (3 << 14)) == 1 << 14)
-                        cacheid |= CACHEID_ASID_TAGGED;
-        } else if (arch >= CPU_ARCH_ARMv6) {
-                if (cachetype & (1 << 23))
+        if (arch >= CPU_ARCH_ARMv6) {
+                if ((cachetype & (7 << 29)) == 4 << 29) {
+                        /* ARMv7 register format */
+                        cacheid = CACHEID_VIPT_NONALIASING;
+                        if ((cachetype & (3 << 14)) == 1 << 14)
+                                cacheid |= CACHEID_ASID_TAGGED;
+                } else if (cachetype & (1 << 23))
                         cacheid = CACHEID_VIPT_ALIASING;
                 else
                         cacheid = CACHEID_VIPT_NONALIASING;
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 9bb4f043aa22..7ac812dc055a 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -332,7 +332,6 @@ static int at91_pm_enter(suspend_state_t state)
                         at91_sys_read(AT91_AIC_IPR) & at91_sys_read(AT91_AIC_IMR));
 
 error:
-        sdram_selfrefresh_disable();
         target_state = PM_SUSPEND_ON;
         at91_irq_resume();
         at91_gpio_resume();
diff --git a/arch/arm/mach-davinci/board-evm.c b/arch/arm/mach-davinci/board-evm.c
index a957d239a683..38b6a9ce2a93 100644
--- a/arch/arm/mach-davinci/board-evm.c
+++ b/arch/arm/mach-davinci/board-evm.c
@@ -311,6 +311,9 @@ evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
         gpio_request(gpio + 7, "nCF_SEL");
         gpio_direction_output(gpio + 7, 1);
 
+        /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
+        setup_usb(500, 8);
+
         return 0;
 }
 
@@ -417,9 +420,6 @@ static __init void davinci_evm_init(void)
         platform_add_devices(davinci_evm_devices,
                              ARRAY_SIZE(davinci_evm_devices));
         evm_init_i2c();
-
-        /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
-        setup_usb(500, 8);
 }
 
 static __init void davinci_evm_irq_init(void)
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 28f6dbc95bd7..abb92b7eca0c 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -231,6 +231,11 @@ static struct clk davinci_clks[] = {
                 .lpsc = DAVINCI_LPSC_GPIO,
         },
         {
+                .name = "usb",
+                .rate = &commonrate,
+                .lpsc = DAVINCI_LPSC_USB,
+        },
+        {
                 .name = "AEMIFCLK",
                 .rate = &commonrate,
                 .lpsc = DAVINCI_LPSC_AEMIF,
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
index 867ead2559ad..69680784448a 100644
--- a/arch/arm/mach-davinci/usb.c
+++ b/arch/arm/mach-davinci/usb.c
@@ -47,6 +47,7 @@ static struct musb_hdrc_platform_data usb_data = {
 #elif defined(CONFIG_USB_MUSB_HOST)
         .mode           = MUSB_HOST,
 #endif
+        .clock          = "usb",
         .config         = &musb_config,
 };
 
diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
index e88d417736af..c7fc01e9d1f6 100644
--- a/arch/arm/mach-rpc/riscpc.c
+++ b/arch/arm/mach-rpc/riscpc.c
@@ -19,6 +19,7 @@
 #include <linux/serial_8250.h>
 #include <linux/ata_platform.h>
 #include <linux/io.h>
+#include <linux/i2c.h>
 
 #include <asm/elf.h>
 #include <asm/mach-types.h>
@@ -201,8 +202,13 @@ static struct platform_device *devs[] __initdata = {
         &pata_device,
 };
 
+static struct i2c_board_info i2c_rtc = {
+        I2C_BOARD_INFO("pcf8583", 0x50)
+};
+
 static int __init rpc_init(void)
 {
+        i2c_register_board_info(0, &i2c_rtc, 1);
         return platform_add_devices(devs, ARRAY_SIZE(devs));
 }
 
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index 8a7f65ba14b7..94077fbd96b7 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -23,7 +23,8 @@ ENTRY(v6_early_abort)
 #ifdef CONFIG_CPU_32v6K
         clrex
 #else
-        strex   r0, r1, [sp]                    @ Clear the exclusive monitor
+        sub     r1, sp, #4                      @ Get unused stack location
+        strex   r0, r1, [r1]                    @ Clear the exclusive monitor
 #endif
         mrc     p15, 0, r1, c5, c0, 0           @ get FSR
         mrc     p15, 0, r0, c6, c0, 0           @ get FAR
diff --git a/arch/arm/plat-s3c64xx/irq-eint.c b/arch/arm/plat-s3c64xx/irq-eint.c
index 8d1b7290aa13..cf524826c93a 100644
--- a/arch/arm/plat-s3c64xx/irq-eint.c
+++ b/arch/arm/plat-s3c64xx/irq-eint.c
@@ -58,7 +58,7 @@ static void s3c_irq_eint_unmask(unsigned int irq)
         u32 mask;
 
         mask = __raw_readl(S3C64XX_EINT0MASK);
-        mask |= eint_irq_to_bit(irq);
+        mask &= ~eint_irq_to_bit(irq);
         __raw_writel(mask, S3C64XX_EINT0MASK);
 }
 
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 4eb45c012498..153e727a6e8e 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -638,6 +638,17 @@ config DMAR
           and include PCI device scope covered by these DMA
           remapping devices.
 
+config DMAR_DEFAULT_ON
+        def_bool y
+        prompt "Enable DMA Remapping Devices by default"
+        depends on DMAR
+        help
+          Selecting this option will enable a DMAR device at boot time if
+          one is found. If this option is not selected, DMAR support can
+          be enabled by passing intel_iommu=on to the kernel. It is
+          recommended you say N here while the DMAR code remains
+          experimental.
+
 endmenu
 
 endif
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 5cfd3d91001a..e13125058bed 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -507,7 +507,7 @@ static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol)
         if (trigger == IOSAPIC_EDGE)
                 return -EINVAL;
 
-        for (i = 0; i <= NR_IRQS; i++) {
+        for (i = 0; i < NR_IRQS; i++) {
                 info = &iosapic_intr_info[i];
                 if (info->trigger == trigger && info->polarity == pol &&
                     (info->dmode == IOSAPIC_FIXED ||
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index 67810b77d998..b6c0e63a0bf6 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -2149,7 +2149,7 @@ unw_remove_unwind_table (void *handle)
 
         /* next, remove hash table entries for this table */
 
-        for (index = 0; index <= UNW_HASH_SIZE; ++index) {
+        for (index = 0; index < UNW_HASH_SIZE; ++index) {
                 tmp = unw.cache + unw.hash[index];
                 if (unw.hash[index] >= UNW_CACHE_SIZE
                     || tmp->ip < table->start || tmp->ip >= table->end)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 600eef3f3ac7..e61465a18c7e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -603,7 +603,7 @@ config CAVIUM_OCTEON_SIMULATOR
         select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_HIGHMEM
-        select CPU_CAVIUM_OCTEON
+        select SYS_HAS_CPU_CAVIUM_OCTEON
         help
           The Octeon simulator is software performance model of the Cavium
           Octeon Processor. It supports simulating Octeon processors on x86
@@ -618,7 +618,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_HIGHMEM
         select SYS_HAS_EARLY_PRINTK
-        select CPU_CAVIUM_OCTEON
+        select SYS_HAS_CPU_CAVIUM_OCTEON
         select SWAP_IO_SPACE
         help
           This option supports all of the Octeon reference boards from Cavium
@@ -1234,6 +1234,7 @@ config CPU_SB1
 
 config CPU_CAVIUM_OCTEON
         bool "Cavium Octeon processor"
+        depends on SYS_HAS_CPU_CAVIUM_OCTEON
         select IRQ_CPU
         select IRQ_CPU_OCTEON
         select CPU_HAS_PREFETCH
@@ -1314,6 +1315,9 @@ config SYS_HAS_CPU_RM9000
 config SYS_HAS_CPU_SB1
         bool
 
+config SYS_HAS_CPU_CAVIUM_OCTEON
+        bool
+
 #
 # CPU may reorder R->R, R->W, W->R, W->W
 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
@@ -1387,6 +1391,7 @@ config 32BIT
 config 64BIT
         bool "64-bit kernel"
         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
+        select HAVE_SYSCALL_WRAPPERS
         help
           Select this option if you want to build a 64-bit kernel.
 
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 6fd441d16af5..f58d4ffb8945 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -118,7 +118,7 @@ void __init plat_time_init(void)
          * setup counter 1 (RTC) to tick at full speed
          */
         t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T1S) && --t)
                 asm volatile ("nop");
         if (!t)
                 goto cntr_err;
@@ -127,7 +127,7 @@ void __init plat_time_init(void)
         au_sync();
 
         t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
                 asm volatile ("nop");
         if (!t)
                 goto cntr_err;
@@ -135,7 +135,7 @@ void __init plat_time_init(void)
         au_sync();
 
         t = 0xffffff;
-        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && t--)
+        while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_C1S) && --t)
                 asm volatile ("nop");
         if (!t)
                 goto cntr_err;
diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
index 36ed44070256..a6772e9507f5 100644
--- a/arch/mips/include/asm/seccomp.h
+++ b/arch/mips/include/asm/seccomp.h
@@ -1,6 +1,5 @@
 #ifndef __ASM_SECCOMP_H
 
-#include <linux/thread_info.h>
 #include <linux/unistd.h>
 
 #define __NR_seccomp_read __NR_read
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index a0ff2b66e22b..4b4007b3083a 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -111,7 +111,6 @@ int show_interrupts(struct seq_file *p, void *v)
                         seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
                 seq_printf(p, " %14s", irq_desc[i].chip->name);
-                seq_printf(p, "-%-8s", irq_desc[i].name);
                 seq_printf(p, "  %s", action->name);
 
                 for (action=action->next; action; action = action->next)
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index aa2c55e3b55f..2f8452b404c7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
+#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ipc.h>
@@ -63,9 +64,9 @@
 #define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
 #endif
 
-asmlinkage unsigned long
-sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
-         unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len,
+        unsigned long, prot, unsigned long, flags, unsigned long, fd,
+        unsigned long, pgoff)
 {
         struct file * file = NULL;
         unsigned long error;
@@ -121,21 +122,21 @@ struct rlimit32 {
         int     rlim_max;
 };
 
-asmlinkage long sys32_truncate64(const char __user * path,
-        unsigned long __dummy, int a2, int a3)
+SYSCALL_DEFINE4(32_truncate64, const char __user *, path,
+        unsigned long, __dummy, unsigned long, a2, unsigned long, a3)
 {
         return sys_truncate(path, merge_64(a2, a3));
 }
 
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
-        int a2, int a3)
+SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy,
+        unsigned long, a2, unsigned long, a3)
 {
         return sys_ftruncate(fd, merge_64(a2, a3));
 }
 
-asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
-                            unsigned int offset_low, loff_t __user * result,
-                            unsigned int origin)
+SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
+        unsigned long, offset_low, loff_t __user *, result,
+        unsigned long, origin)
 {
         return sys_llseek(fd, offset_high, offset_low, result, origin);
 }
@@ -144,20 +145,20 @@ asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
    lseek back to original location.  They fail just like lseek does on
    non-seekable files.  */
 
-asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
-                               size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count,
+        unsigned long, unused, unsigned long, a4, unsigned long, a5)
 {
         return sys_pread64(fd, buf, count, merge_64(a4, a5));
 }
 
-asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
-                                size_t count, u32 unused, u64 a4, u64 a5)
+SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
+        size_t, count, u32, unused, u64, a4, u64, a5)
 {
         return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
 }
 
-asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
-        struct compat_timespec __user *interval)
+SYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid,
+        struct compat_timespec __user *, interval)
 {
         struct timespec t;
         int ret;
@@ -174,8 +175,8 @@ asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
 
 #ifdef CONFIG_SYSVIPC
 
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
+        unsigned long, ptr, unsigned long, fifth)
 {
         int version, err;
 
@@ -233,8 +234,8 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 
 #else
 
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
+        u32, ptr, u32 fifth)
 {
         return -ENOSYS;
 }
@@ -242,7 +243,7 @@ sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 #endif /* CONFIG_SYSVIPC */
 
 #ifdef CONFIG_MIPS32_N32
-asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
+SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
 {
         /* compat_sys_semctl expects a pointer to union semun */
         u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
@@ -251,13 +252,14 @@ asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
         return compat_sys_semctl(semid, semnum, cmd, uptr);
 }
 
-asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg)
+SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz,
+        int, msgflg)
 {
         return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
 }
 
-asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp,
-                              int msgflg)
+SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz,
+        int, msgtyp, int, msgflg)
 {
         return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
                                  compat_ptr(msgp));
@@ -277,7 +279,7 @@ struct sysctl_args32
 
 #ifdef CONFIG_SYSCTL_SYSCALL
 
-asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
 {
         struct sysctl_args32 tmp;
         int error;
@@ -316,9 +318,16 @@ asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
         return error;
 }
 
+#else
+
+SYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args)
+{
+        return -ENOSYS;
+}
+
 #endif /* CONFIG_SYSCTL_SYSCALL */
 
-asmlinkage long sys32_newuname(struct new_utsname __user * name)
+SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name)
 {
         int ret = 0;
 
@@ -334,7 +343,7 @@ asmlinkage long sys32_newuname(struct new_utsname __user * name)
         return ret;
 }
 
-asmlinkage int sys32_personality(unsigned long personality)
+SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 {
         int ret;
         personality &= 0xffffffff;
@@ -357,7 +366,7 @@ struct ustat32 {
 
 extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
 
-asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
+SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
 {
         int err;
         struct ustat tmp;
@@ -381,8 +390,8 @@ out:
         return err;
 }
 
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
-        s32 count)
+SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
+        compat_off_t __user *, offset, s32, count)
 {
         mm_segment_t old_fs = get_fs();
         int ret;
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 51d1ba415b90..9ab70c3b5be6 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -399,7 +399,7 @@ einval:	li	v0, -ENOSYS
         sys     sys_swapon              2
         sys     sys_reboot              3
         sys     sys_old_readdir         3
-        sys     old_mmap                6       /* 4090 */
+        sys     sys_mips_mmap           6       /* 4090 */
         sys     sys_munmap              2
         sys     sys_truncate            2
         sys     sys_ftruncate           2
@@ -519,7 +519,7 @@ einval:	li	v0, -ENOSYS
         sys     sys_sendfile            4
         sys     sys_ni_syscall          0
         sys     sys_ni_syscall          0
-        sys     sys_mmap2               6       /* 4210 */
+        sys     sys_mips_mmap2          6       /* 4210 */
         sys     sys_truncate64          4
         sys     sys_ftruncate64         4
         sys     sys_stat64              2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index a9e171618994..9b4698667154 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -207,7 +207,7 @@ sys_call_table:
         PTR     sys_newlstat
         PTR     sys_poll
         PTR     sys_lseek
-        PTR     old_mmap
+        PTR     sys_mips_mmap
         PTR     sys_mprotect                    /* 5010 */
         PTR     sys_munmap
         PTR     sys_brk
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 30f3b6317a83..7438e92f8a01 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -129,12 +129,12 @@ EXPORT(sysn32_call_table)
         PTR     sys_newlstat
         PTR     sys_poll
         PTR     sys_lseek
-        PTR     old_mmap
+        PTR     sys_mips_mmap
         PTR     sys_mprotect                    /* 6010 */
         PTR     sys_munmap
         PTR     sys_brk
-        PTR     sys32_rt_sigaction
-        PTR     sys32_rt_sigprocmask
+        PTR     sys_32_rt_sigaction
+        PTR     sys_32_rt_sigprocmask
         PTR     compat_sys_ioctl                /* 6015 */
         PTR     sys_pread64
         PTR     sys_pwrite64
@@ -159,7 +159,7 @@ EXPORT(sysn32_call_table)
         PTR     compat_sys_setitimer
         PTR     sys_alarm
         PTR     sys_getpid
-        PTR     sys32_sendfile
+        PTR     sys_32_sendfile
         PTR     sys_socket                      /* 6040 */
         PTR     sys_connect
         PTR     sys_accept
@@ -181,14 +181,14 @@ EXPORT(sysn32_call_table)
         PTR     sys_exit
         PTR     compat_sys_wait4
         PTR     sys_kill                        /* 6060 */
-        PTR     sys32_newuname
+        PTR     sys_32_newuname
         PTR     sys_semget
         PTR     sys_semop
-        PTR     sysn32_semctl
+        PTR     sys_n32_semctl
         PTR     sys_shmdt                       /* 6065 */
         PTR     sys_msgget
-        PTR     sysn32_msgsnd
-        PTR     sysn32_msgrcv
+        PTR     sys_n32_msgsnd
+        PTR     sys_n32_msgrcv
         PTR     compat_sys_msgctl
         PTR     compat_sys_fcntl                /* 6070 */
         PTR     sys_flock
@@ -245,15 +245,15 @@ EXPORT(sysn32_call_table)
         PTR     sys_getsid
         PTR     sys_capget
         PTR     sys_capset
-        PTR     sys32_rt_sigpending             /* 6125 */
+        PTR     sys_32_rt_sigpending            /* 6125 */
         PTR     compat_sys_rt_sigtimedwait
-        PTR     sys32_rt_sigqueueinfo
+        PTR     sys_32_rt_sigqueueinfo
         PTR     sysn32_rt_sigsuspend
         PTR     sys32_sigaltstack
         PTR     compat_sys_utime                /* 6130 */
         PTR     sys_mknod
-        PTR     sys32_personality
-        PTR     sys32_ustat
+        PTR     sys_32_personality
+        PTR     sys_32_ustat
         PTR     compat_sys_statfs
         PTR     compat_sys_fstatfs              /* 6135 */
         PTR     sys_sysfs
@@ -265,14 +265,14 @@ EXPORT(sysn32_call_table)
         PTR     sys_sched_getscheduler
         PTR     sys_sched_get_priority_max
         PTR     sys_sched_get_priority_min
-        PTR     sys32_sched_rr_get_interval     /* 6145 */
+        PTR     sys_32_sched_rr_get_interval    /* 6145 */
         PTR     sys_mlock
         PTR     sys_munlock
         PTR     sys_mlockall
         PTR     sys_munlockall
         PTR     sys_vhangup                     /* 6150 */
         PTR     sys_pivot_root
-        PTR     sys32_sysctl
+        PTR     sys_32_sysctl
         PTR     sys_prctl
         PTR     compat_sys_adjtimex
         PTR     compat_sys_setrlimit            /* 6155 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index fefef4af8595..b0fef4ff9827 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -265,12 +265,12 @@ sys_call_table:
         PTR     sys_olduname
         PTR     sys_umask                       /* 4060 */
         PTR     sys_chroot
-        PTR     sys32_ustat
+        PTR     sys_32_ustat
         PTR     sys_dup2
         PTR     sys_getppid
         PTR     sys_getpgrp                     /* 4065 */
         PTR     sys_setsid
-        PTR     sys32_sigaction
+        PTR     sys_32_sigaction
         PTR     sys_sgetmask
         PTR     sys_ssetmask
         PTR     sys_setreuid                    /* 4070 */
@@ -293,7 +293,7 @@ sys_call_table:
         PTR     sys_swapon
         PTR     sys_reboot
         PTR     compat_sys_old_readdir
-        PTR     old_mmap                        /* 4090 */
+        PTR     sys_mips_mmap                   /* 4090 */
         PTR     sys_munmap
         PTR     sys_truncate
         PTR     sys_ftruncate
@@ -320,12 +320,12 @@ sys_call_table:
         PTR     compat_sys_wait4
         PTR     sys_swapoff                     /* 4115 */
         PTR     compat_sys_sysinfo
-        PTR     sys32_ipc
+        PTR     sys_32_ipc
         PTR     sys_fsync
         PTR     sys32_sigreturn
         PTR     sys32_clone                     /* 4120 */
         PTR     sys_setdomainname
-        PTR     sys32_newuname
+        PTR     sys_32_newuname
         PTR     sys_ni_syscall                  /* sys_modify_ldt */
         PTR     compat_sys_adjtimex
         PTR     sys_mprotect                    /* 4125 */
@@ -339,11 +339,11 @@ sys_call_table:
         PTR     sys_fchdir
         PTR     sys_bdflush
         PTR     sys_sysfs                       /* 4135 */
-        PTR     sys32_personality
+        PTR     sys_32_personality
         PTR     sys_ni_syscall                  /* for afs_syscall */
         PTR     sys_setfsuid
         PTR     sys_setfsgid
-        PTR     sys32_llseek                    /* 4140 */
+        PTR     sys_32_llseek                   /* 4140 */
         PTR     compat_sys_getdents
         PTR     compat_sys_select
         PTR     sys_flock
@@ -356,7 +356,7 @@ sys_call_table:
         PTR     sys_ni_syscall                  /* 4150 */
         PTR     sys_getsid
         PTR     sys_fdatasync
-        PTR     sys32_sysctl
+        PTR     sys_32_sysctl
         PTR     sys_mlock
         PTR     sys_munlock                     /* 4155 */
         PTR     sys_mlockall
@@ -368,7 +368,7 @@ sys_call_table:
         PTR     sys_sched_yield
         PTR     sys_sched_get_priority_max
         PTR     sys_sched_get_priority_min
-        PTR     sys32_sched_rr_get_interval     /* 4165 */
+        PTR     sys_32_sched_rr_get_interval    /* 4165 */
         PTR     compat_sys_nanosleep
         PTR     sys_mremap
         PTR     sys_accept
@@ -397,25 +397,25 @@ sys_call_table:
         PTR     sys_getresgid
         PTR     sys_prctl
         PTR     sys32_rt_sigreturn
-        PTR     sys32_rt_sigaction
-        PTR     sys32_rt_sigprocmask            /* 4195 */
-        PTR     sys32_rt_sigpending
+        PTR     sys_32_rt_sigaction
+        PTR     sys_32_rt_sigprocmask           /* 4195 */
+        PTR     sys_32_rt_sigpending
         PTR     compat_sys_rt_sigtimedwait
-        PTR     sys32_rt_sigqueueinfo
+        PTR     sys_32_rt_sigqueueinfo
         PTR     sys32_rt_sigsuspend
-        PTR     sys32_pread                     /* 4200 */
-        PTR     sys32_pwrite
+        PTR     sys_32_pread                    /* 4200 */
+        PTR     sys_32_pwrite
         PTR     sys_chown
         PTR     sys_getcwd
         PTR     sys_capget
         PTR     sys_capset                      /* 4205 */
         PTR     sys32_sigaltstack
-        PTR     sys32_sendfile
+        PTR     sys_32_sendfile
         PTR     sys_ni_syscall
         PTR     sys_ni_syscall
-        PTR     sys32_mmap2                     /* 4210 */
-        PTR     sys32_truncate64
-        PTR     sys32_ftruncate64
+        PTR     sys_mips_mmap2                  /* 4210 */
+        PTR     sys_32_truncate64
+        PTR     sys_32_ftruncate64
         PTR     sys_newstat
         PTR     sys_newlstat
         PTR     sys_newfstat                    /* 4215 */
@@ -481,7 +481,7 @@ sys_call_table:
         PTR     compat_sys_mq_notify            /* 4275 */
         PTR     compat_sys_mq_getsetattr
         PTR     sys_ni_syscall                  /* sys_vserver */
-        PTR     sys32_waitid
+        PTR     sys_32_waitid
         PTR     sys_ni_syscall                  /* available, was setaltroot */
         PTR     sys_add_key                     /* 4280 */
         PTR     sys_request_key
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index a4e106c56ab5..830c5ef9932b 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -19,6 +19,7 @@
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/compiler.h>
+#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 
 #include <asm/abi.h>
@@ -338,8 +339,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 }
 
 #ifdef CONFIG_TRAD_SIGNALS
-asmlinkage int sys_sigaction(int sig, const struct sigaction __user *act,
-        struct sigaction __user *oact)
+SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
+        struct sigaction __user *, oact)
 {
         struct k_sigaction new_ka, old_ka;
         int ret;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 652709b353ad..2e74075ac0ca 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -349,8 +349,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
         return -ERESTARTNOHAND;
 }
 
-asmlinkage int sys32_sigaction(int sig, const struct sigaction32 __user *act,
-                               struct sigaction32 __user *oact)
+SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
+        struct sigaction32 __user *, oact)
 {
         struct k_sigaction new_ka, old_ka;
         int ret;
@@ -704,9 +704,9 @@ struct mips_abi mips_abi_32 = {
         .restart        = __NR_O32_restart_syscall
 };
 
-asmlinkage int sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
-                                  struct sigaction32 __user *oact,
-                                  unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigaction, int, sig,
+        const struct sigaction32 __user *, act,
+        struct sigaction32 __user *, oact, unsigned int, sigsetsize)
 {
         struct k_sigaction new_sa, old_sa;
         int ret = -EINVAL;
@@ -748,8 +748,8 @@ out:
         return ret;
 }
 
-asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
-        compat_sigset_t __user *oset, unsigned int sigsetsize)
+SYSCALL_DEFINE4(32_rt_sigprocmask, int, how, compat_sigset_t __user *, set,
+        compat_sigset_t __user *, oset, unsigned int, sigsetsize)
 {
         sigset_t old_set, new_set;
         int ret;
@@ -770,8 +770,8 @@ asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
         return ret;
 }
 
-asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
-        unsigned int sigsetsize)
+SYSCALL_DEFINE2(32_rt_sigpending, compat_sigset_t __user *, uset,
+        unsigned int, sigsetsize)
 {
         int ret;
         sigset_t set;
@@ -787,7 +787,8 @@ asmlinkage int sys32_rt_sigpending(compat_sigset_t __user *uset,
         return ret;
 }
 
-asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
+SYSCALL_DEFINE3(32_rt_sigqueueinfo, int, pid, int, sig,
+        compat_siginfo_t __user *, uinfo)
 {
         siginfo_t info;
         int ret;
@@ -802,10 +803,9 @@ asmlinkage int sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *
         return ret;
 }
 
-asmlinkage long
-sys32_waitid(int which, compat_pid_t pid,
-             compat_siginfo_t __user *uinfo, int options,
-             struct compat_rusage __user *uru)
+SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
+             compat_siginfo_t __user *, uinfo, int, options,
+             struct compat_rusage __user *, uru)
 {
         siginfo_t info;
         struct rusage ru;
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 37970d9b2186..8cf384644040 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -152,9 +152,9 @@ out:
         return error;
 }
 
-asmlinkage unsigned long
-old_mmap(unsigned long addr, unsigned long len, int prot,
-        int flags, int fd, off_t offset)
+SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len,
+        unsigned long, prot, unsigned long, flags, unsigned long,
+        fd, off_t, offset)
 {
         unsigned long result;
 
@@ -168,9 +168,9 @@ out:
         return result;
 }
 
-asmlinkage unsigned long
-sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
-          unsigned long flags, unsigned long fd, unsigned long pgoff)
+SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len,
+        unsigned long, prot, unsigned long, flags, unsigned long, fd,
+        unsigned long, pgoff)
 {
         if (pgoff & (~PAGE_MASK >> 12))
                 return -EINVAL;
@@ -240,7 +240,7 @@ out:
 /*
  * Compacrapability ...
  */
-asmlinkage int sys_uname(struct old_utsname __user * name)
+SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
 {
         if (name && !copy_to_user(name, utsname(), sizeof (*name)))
                 return 0;
@@ -250,7 +250,7 @@ asmlinkage int sys_uname(struct old_utsname __user * name)
 /*
  * Compacrapability ...
  */
-asmlinkage int sys_olduname(struct oldold_utsname __user * name)
+SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
 {
         int error;
 
@@ -279,7 +279,7 @@ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
         return error;
 }
 
-asmlinkage int sys_set_thread_area(unsigned long addr)
+SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
 {
         struct thread_info *ti = task_thread_info(current);
 
@@ -290,7 +290,7 @@ asmlinkage int sys_set_thread_area(unsigned long addr)
         return 0;
 }
 
-asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
+asmlinkage int _sys_sysmips(long cmd, long arg1, long arg2, long arg3)
 {
         switch (cmd) {
         case MIPS_ATOMIC_SET:
@@ -325,8 +325,8 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
  *
  * This is really horribly ugly.
  */
-asmlinkage int sys_ipc(unsigned int call, int first, int second,
-                       unsigned long third, void __user *ptr, long fifth)
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
+        unsigned long, third, void __user *, ptr, long, fifth)
 {
         int version, ret;
 
@@ -411,7 +411,7 @@ asmlinkage int sys_ipc(unsigned int call, int first, int second,
 /*
  * No implemented yet ...
  */
-asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
+SYSCALL_DEFINE3(cachectl, char *, addr, int, nbytes, int, op)
 {
         return -ENOSYS;
 }
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 98ad0a82c29e..694d51f523d1 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -13,6 +13,7 @@
 #include <linux/linkage.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/syscalls.h>
 #include <linux/mm.h>
 
 #include <asm/cacheflush.h>
@@ -58,8 +59,8 @@ EXPORT_SYMBOL(_dma_cache_wback_inv);
  * We could optimize the case where the cache argument is not BCACHE but
  * that seems very atypical use ...
  */
-asmlinkage int sys_cacheflush(unsigned long addr,
-        unsigned long bytes, unsigned int cache)
+SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes,
+        unsigned int, cache)
 {
         if (bytes == 0)
                 return 0;
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index d811a8cd7b58..4774c2f92232 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -210,5 +210,10 @@ struct compat_shmid64_ds {
         compat_ulong_t __unused6;
 };
 
+static inline int is_compat_task(void)
+{
+        return test_thread_flag(TIF_32BIT);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_COMPAT_H */
diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
index 853765eb1f65..00c1d9133cfe 100644
--- a/arch/powerpc/include/asm/seccomp.h
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -1,10 +1,6 @@
 #ifndef _ASM_POWERPC_SECCOMP_H
 #define _ASM_POWERPC_SECCOMP_H
 
-#ifdef __KERNEL__
-#include <linux/thread_info.h>
-#endif
-
 #include <linux/unistd.h>
 
 #define __NR_seccomp_read __NR_read
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index ada06924a423..73cb6a3229ae 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -367,27 +367,24 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
                            unsigned int flags)
 {
-        char *ptr = (char *) &current->thread.TS_FPR(reg);
-        int i, ret;
+        char *ptr0 = (char *) &current->thread.TS_FPR(reg);
+        char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
+        int i, ret, sw = 0;
 
         if (!(flags & F))
                 return 0;
         if (reg & 1)
                 return 0;       /* invalid form: FRS/FRT must be even */
-        if (!(flags & SW)) {
-                /* not byte-swapped - easy */
-                if (!(flags & ST))
-                        ret = __copy_from_user(ptr, addr, 16);
-                else
-                        ret = __copy_to_user(addr, ptr, 16);
-        } else {
-                /* each FPR value is byte-swapped separately */
-                ret = 0;
-                for (i = 0; i < 16; ++i) {
-                        if (!(flags & ST))
-                                ret |= __get_user(ptr[i^7], addr + i);
-                        else
-                                ret |= __put_user(ptr[i^7], addr + i);
+        if (flags & SW)
+                sw = 7;
+        ret = 0;
+        for (i = 0; i < 8; ++i) {
+                if (!(flags & ST)) {
+                        ret |= __get_user(ptr0[i^sw], addr + i);
+                        ret |= __get_user(ptr1[i^sw], addr + i + 8);
+                } else {
+                        ret |= __put_user(ptr0[i^sw], addr + i);
+                        ret |= __put_user(ptr1[i^sw], addr + i + 8);
                 }
         }
         if (ret)
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S
index 70693a5c12a1..693b14a778fa 100644
--- a/arch/powerpc/lib/copyuser_64.S
+++ b/arch/powerpc/lib/copyuser_64.S
@@ -62,18 +62,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 72:     std     r8,8(r3)
         beq+    3f
         addi    r3,r3,16
-23:     ld      r9,8(r4)
 .Ldo_tail:
         bf      cr7*4+1,1f
-        rotldi  r9,r9,32
+23:     lwz     r9,8(r4)
+        addi    r4,r4,4
 73:     stw     r9,0(r3)
         addi    r3,r3,4
 1:      bf      cr7*4+2,2f
-        rotldi  r9,r9,16
+44:     lhz     r9,8(r4)
+        addi    r4,r4,2
 74:     sth     r9,0(r3)
         addi    r3,r3,2
 2:      bf      cr7*4+3,3f
-        rotldi  r9,r9,8
+45:     lbz     r9,8(r4)
 75:     stb     r9,0(r3)
 3:      li      r3,0
         blr
@@ -141,11 +142,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 6:      cmpwi   cr1,r5,8
         addi    r3,r3,32
         sld     r9,r9,r10
-        ble     cr1,.Ldo_tail
+        ble     cr1,7f
 34:     ld      r0,8(r4)
         srd     r7,r0,r11
         or      r9,r7,r9
-        b       .Ldo_tail
+7:
+        bf      cr7*4+1,1f
+        rotldi  r9,r9,32
+94:     stw     r9,0(r3)
+        addi    r3,r3,4
+1:      bf      cr7*4+2,2f
+        rotldi  r9,r9,16
+95:     sth     r9,0(r3)
+        addi    r3,r3,2
+2:      bf      cr7*4+3,3f
+        rotldi  r9,r9,8
+96:     stb     r9,0(r3)
+3:      li      r3,0
+        blr
 
 .Ldst_unaligned:
         PPC_MTOCRF      0x01,r6         /* put #bytes to 8B bdry into cr7 */
@@ -218,7 +232,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 121:
 132:
         addi    r3,r3,8
-123:
 134:
 135:
 138:
@@ -226,6 +239,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 140:
 141:
 142:
+123:
+144:
+145:
 
 /*
  * here we have had a fault on a load and r3 points to the first
@@ -309,6 +325,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 187:
 188:
 189:    
+194:
+195:
+196:
 1:
         ld      r6,-24(r1)
         ld      r5,-8(r1)
@@ -329,7 +348,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
         .llong  72b,172b
         .llong  23b,123b
         .llong  73b,173b
+        .llong  44b,144b
         .llong  74b,174b
+        .llong  45b,145b
         .llong  75b,175b
         .llong  24b,124b
         .llong  25b,125b
@@ -347,6 +368,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
         .llong  79b,179b
         .llong  80b,180b
         .llong  34b,134b
+        .llong  94b,194b
+        .llong  95b,195b
+        .llong  96b,196b
         .llong  35b,135b
         .llong  81b,181b
         .llong  36b,136b
diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S
index fe2d34e5332d..e178922b2c21 100644
--- a/arch/powerpc/lib/memcpy_64.S
+++ b/arch/powerpc/lib/memcpy_64.S
@@ -53,18 +53,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 3:      std     r8,8(r3)
         beq     3f
         addi    r3,r3,16
-        ld      r9,8(r4)
 .Ldo_tail:
         bf      cr7*4+1,1f
-        rotldi  r9,r9,32
+        lwz     r9,8(r4)
+        addi    r4,r4,4
         stw     r9,0(r3)
         addi    r3,r3,4
 1:      bf      cr7*4+2,2f
-        rotldi  r9,r9,16
+        lhz     r9,8(r4)
+        addi    r4,r4,2
         sth     r9,0(r3)
         addi    r3,r3,2
 2:      bf      cr7*4+3,3f
-        rotldi  r9,r9,8
+        lbz     r9,8(r4)
         stb     r9,0(r3)
 3:      ld      r3,48(r1)       /* return dest pointer */
         blr
@@ -133,11 +134,24 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
         cmpwi   cr1,r5,8
         addi    r3,r3,32
         sld     r9,r9,r10
-        ble     cr1,.Ldo_tail
+        ble     cr1,6f
         ld      r0,8(r4)
         srd     r7,r0,r11
         or      r9,r7,r9
-        b       .Ldo_tail
+6:
+        bf      cr7*4+1,1f
+        rotldi  r9,r9,32
+        stw     r9,0(r3)
+        addi    r3,r3,4
+1:      bf      cr7*4+2,2f
+        rotldi  r9,r9,16
+        sth     r9,0(r3)
+        addi    r3,r3,2
+2:      bf      cr7*4+3,3f
+        rotldi  r9,r9,8
+        stb     r9,0(r3)
+3:      ld      r3,48(r1)       /* return dest pointer */
+        blr
 
 .Ldst_unaligned:
         PPC_MTOCRF      0x01,r6         # put #bytes to 8B bdry into cr7
diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c
index fb371f5ce132..d6b772ba3b8f 100644
--- a/arch/powerpc/platforms/86xx/gef_sbc610.c
+++ b/arch/powerpc/platforms/86xx/gef_sbc610.c
@@ -142,6 +142,10 @@ static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev)
 {
         unsigned int val;
 
+        /* Do not do the fixup on other platforms! */
+        if (!machine_is(gef_sbc610))
+                return;
+
         printk(KERN_INFO "Running NEC uPD720101 Fixup\n");
 
         /* Ensure ports 1, 2, 3, 4 & 5 are enabled */
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 77fae5f64f2e..5558d932b4d5 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -204,6 +204,23 @@ static int __init ppc4xx_setup_one_pci_PMM(struct pci_controller	*hose,
 {
         u32 ma, pcila, pciha;
 
+        /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
+         * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
+         * address are actually hard wired to a value that appears to depend
+         * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
+         *
+         * The trick here is we just crop those top bits and ignore them when
+         * programming the chip. That means the device-tree has to be right
+         * for the specific part used (we don't print a warning if it's wrong
+         * but on the other hand, you'll crash quickly enough), but at least
+         * this code should work whatever the hard coded value is
+         */
+        plb_addr &= 0xffffffffull;
+
+        /* Note: Due to the above hack, the test below doesn't actually test
+         * if you address is above 4G, but it tests that address and
+         * (address + size) are both contained in the same 4G
+         */
         if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
             size < 0x1000 || (plb_addr & (size - 1)) != 0) {
                 printk(KERN_WARNING "%s: Resource out of range\n",
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index c42cd898f68b..6118890c946d 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -556,7 +556,7 @@ static void __exit aes_s390_fini(void)
 module_init(aes_s390_init);
 module_exit(aes_s390_fini);
 
-MODULE_ALIAS("aes");
+MODULE_ALIAS("aes-all");
 
 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
 MODULE_LICENSE("GPL");
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 7c35787d29b4..72da416f6162 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -22,7 +22,6 @@
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_gpio.h>
-#include <media/ov772x.h>
 #include <media/soc_camera_platform.h>
 #include <media/sh_mobile_ceu.h>
 #include <video/sh_mobile_lcdc.h>
@@ -224,7 +223,6 @@ static void camera_power(int val)
 }
 
 #ifdef CONFIG_I2C
-/* support for the old ncm03j camera */
 static unsigned char camera_ncm03j_magic[] =
 {
         0x87, 0x00, 0x88, 0x08, 0x89, 0x01, 0x8A, 0xE8,
@@ -245,23 +243,6 @@ static unsigned char camera_ncm03j_magic[] =
         0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
 };
 
-static int camera_probe(void)
-{
-        struct i2c_adapter *a = i2c_get_adapter(0);
-        struct i2c_msg msg;
-        int ret;
-
-        camera_power(1);
-        msg.addr = 0x6e;
-        msg.buf = camera_ncm03j_magic;
-        msg.len = 2;
-        msg.flags = 0;
-        ret = i2c_transfer(a, &msg, 1);
-        camera_power(0);
-
-        return ret;
-}
-
 static int camera_set_capture(struct soc_camera_platform_info *info,
                               int enable)
 {
@@ -313,35 +294,8 @@ static struct platform_device camera_device = {
                 .platform_data  = &camera_info,
         },
 };
-
-static int __init camera_setup(void)
-{
-        if (camera_probe() > 0)
-                platform_device_register(&camera_device);
-
-        return 0;
-}
-late_initcall(camera_setup);
-
 #endif /* CONFIG_I2C */
 
-static int ov7725_power(struct device *dev, int mode)
-{
-        camera_power(0);
-        if (mode)
-                camera_power(1);
-
-        return 0;
-}
-
-static struct ov772x_camera_info ov7725_info = {
-        .buswidth  = SOCAM_DATAWIDTH_8,
-        .flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
-        .link = {
-                .power  = ov7725_power,
-        },
-};
-
 static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
         .flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_HSYNC_ACTIVE_HIGH |
         SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_MASTER | SOCAM_DATAWIDTH_8,
@@ -392,6 +346,9 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
         &ap325rxa_nor_flash_device,
         &lcdc_device,
         &ceu_device,
+#ifdef CONFIG_I2C
+        &camera_device,
+#endif
         &nand_flash_device,
         &sdcard_cn3_device,
 };
@@ -400,10 +357,6 @@ static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
         {
                 I2C_BOARD_INFO("pcf8563", 0x51),
         },
-        {
-                I2C_BOARD_INFO("ov772x", 0x21),
-                .platform_data = &ov7725_info,
-        },
 };
 
 static struct spi_board_info ap325rxa_spi_devices[] = {
diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7201.c b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
index 020a96fe961a..4a5e59732334 100644
--- a/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c
@@ -18,8 +18,8 @@
 #include <asm/freq.h>
 #include <asm/io.h>
 
-const static int pll1rate[]={1,2,3,4,6,8};
-const static int pfc_divisors[]={1,2,3,4,6,8,12};
+static const int pll1rate[]={1,2,3,4,6,8};
+static const int pfc_divisors[]={1,2,3,4,6,8,12};
 #define ifc_divisors pfc_divisors
 
 #if (CONFIG_SH_CLK_MD == 0)
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index f260b58f5ce9..0e706257918f 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -240,4 +240,9 @@ struct compat_shmid64_ds {
         unsigned int    __unused2;
 };
 
+static inline int is_compat_task(void)
+{
+        return test_thread_flag(TIF_32BIT);
+}
+
 #endif /* _ASM_SPARC64_COMPAT_H */
diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
index 7fcd9968192b..adca1bce41d4 100644
--- a/arch/sparc/include/asm/seccomp.h
+++ b/arch/sparc/include/asm/seccomp.h
@@ -1,11 +1,5 @@
 #ifndef _ASM_SECCOMP_H
 
-#include <linux/thread_info.h> /* already defines TIF_32BIT */
-
-#ifndef TIF_32BIT
-#error "unexpected TIF_32BIT on sparc64"
-#endif
-
 #include <linux/unistd.h>
 
 #define __NR_seccomp_read __NR_read
diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c
index 3b9f4d6e14a9..e1a9598e2a4d 100644
--- a/arch/sparc/kernel/chmc.c
+++ b/arch/sparc/kernel/chmc.c
@@ -306,6 +306,7 @@ static int jbusmc_print_dimm(int syndrome_code,
                 buf[1] = '?';
                 buf[2] = '?';
                 buf[3] = '\0';
+                return 0;
         }
         p = dp->controller;
         prop = &p->layout;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9c39095b33fc..bc2fbadff9f9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1803,7 +1803,7 @@ config DMAR
           remapping devices.
 
 config DMAR_DEFAULT_ON
-        def_bool n
+        def_bool y
         prompt "Enable DMA Remapping Devices by default"
         depends on DMAR
         help
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
index c1f06289b14b..86af26091d6c 100644
--- a/arch/x86/include/asm/iomap.h
+++ b/arch/x86/include/asm/iomap.h
@@ -23,6 +23,9 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+int
+is_io_mapping_possible(resource_size_t base, unsigned long size);
+
 void *
 iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
 
diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
index a6ad87b352c4..b811d6f5780c 100644
--- a/arch/x86/include/asm/seccomp_32.h
+++ b/arch/x86/include/asm/seccomp_32.h
@@ -1,12 +1,6 @@
 #ifndef _ASM_X86_SECCOMP_32_H
 #define _ASM_X86_SECCOMP_32_H
 
-#include <linux/thread_info.h>
-
-#ifdef TIF_32BIT
-#error "unexpected TIF_32BIT on i386"
-#endif
-
 #include <linux/unistd.h>
 
 #define __NR_seccomp_read __NR_read
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
index 4171bb794e9e..84ec1bd161a5 100644
--- a/arch/x86/include/asm/seccomp_64.h
+++ b/arch/x86/include/asm/seccomp_64.h
@@ -1,14 +1,6 @@
 #ifndef _ASM_X86_SECCOMP_64_H
 #define _ASM_X86_SECCOMP_64_H
 
-#include <linux/thread_info.h>
-
-#ifdef TIF_32BIT
-#error "unexpected TIF_32BIT on x86_64"
-#else
-#define TIF_32BIT TIF_IA32
-#endif
-
 #include <linux/unistd.h>
 #include <asm/ia32_unistd.h>
 
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 5a4c23d89892..06ca07f6ad86 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1388,7 +1388,7 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
 #ifdef CONFIG_X86_32
 # define IS_IA32        1
 #elif defined CONFIG_IA32_EMULATION
-# define IS_IA32        test_thread_flag(TIF_IA32)
+# define IS_IA32        is_compat_task()
 #else
 # define IS_IA32        0
 #endif
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 7ffcdeec4631..b9cc84a2a4fc 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -65,7 +65,7 @@ static volatile unsigned long smp_invalidate_needed;
 
 /* Bitmask of CPUs present in the system - exported by i386_syms.c, used
  * by scheduler but indexed physically */
-cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+static cpumask_t voyager_phys_cpu_present_map = CPU_MASK_NONE;
 
 /* The internal functions */
 static void send_CPI(__u32 cpuset, __u8 cpi);
@@ -366,19 +366,19 @@ void __init find_smp_config(void)
         /* set up everything for just this CPU, we can alter
          * this as we start the other CPUs later */
         /* now get the CPU disposition from the extended CMOS */
-        cpus_addr(phys_cpu_present_map)[0] =
+        cpus_addr(voyager_phys_cpu_present_map)[0] =
             voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK);
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
             voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
             voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
                                        2) << 16;
-        cpus_addr(phys_cpu_present_map)[0] |=
+        cpus_addr(voyager_phys_cpu_present_map)[0] |=
             voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK +
                                        3) << 24;
-        init_cpu_possible(&phys_cpu_present_map);
-        printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n",
-               cpus_addr(phys_cpu_present_map)[0]);
+        init_cpu_possible(&voyager_phys_cpu_present_map);
+        printk("VOYAGER SMP: voyager_phys_cpu_present_map = 0x%lx\n",
+               cpus_addr(voyager_phys_cpu_present_map)[0]);
         /* Here we set up the VIC to enable SMP */
         /* enable the CPIs by writing the base vector to their register */
         outb(VIC_DEFAULT_CPI_BASE, VIC_CPI_BASE_REGISTER);
@@ -628,15 +628,15 @@ void __init smp_boot_cpus(void)
                 /* now that the cat has probed the Voyager System Bus, sanity
                  * check the cpu map */
                 if (((voyager_quad_processors | voyager_extended_vic_processors)
-                     & cpus_addr(phys_cpu_present_map)[0]) !=
-                    cpus_addr(phys_cpu_present_map)[0]) {
+                     & cpus_addr(voyager_phys_cpu_present_map)[0]) !=
+                    cpus_addr(voyager_phys_cpu_present_map)[0]) {
                         /* should panic */
                         printk("\n\n***WARNING*** "
                                "Sanity check of CPU present map FAILED\n");
                 }
         } else if (voyager_level == 4)
                 voyager_extended_vic_processors =
-                    cpus_addr(phys_cpu_present_map)[0];
+                    cpus_addr(voyager_phys_cpu_present_map)[0];
 
         /* this sets up the idle task to run on the current cpu */
         voyager_extended_cpus = 1;
@@ -670,7 +670,7 @@ void __init smp_boot_cpus(void)
         /* loop over all the extended VIC CPUs and boot them.  The
          * Quad CPUs must be bootstrapped by their extended VIC cpu */
         for (i = 0; i < nr_cpu_ids; i++) {
-                if (i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map))
+                if (i == boot_cpu_id || !cpu_isset(i, voyager_phys_cpu_present_map))
                         continue;
                 do_boot_cpu(i);
                 /* This udelay seems to be needed for the Quad boots
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e6d36b490250..b1352250096e 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -714,6 +714,8 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
         pos = start_pfn << PAGE_SHIFT;
         end_pfn = ((pos + (PMD_SIZE - 1)) >> PMD_SHIFT)
                         << (PMD_SHIFT - PAGE_SHIFT);
+        if (end_pfn > (end >> PAGE_SHIFT))
+                end_pfn = end >> PAGE_SHIFT;
         if (start_pfn < end_pfn) {
                 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
                 pos = end_pfn << PAGE_SHIFT;
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index ca53224fc56c..04102d42ff42 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -20,6 +20,17 @@
 #include <asm/pat.h>
 #include <linux/module.h>
 
+int is_io_mapping_possible(resource_size_t base, unsigned long size)
+{
+#ifndef CONFIG_X86_PAE
+        /* There is no way to map greater than 1 << 32 address without PAE */
+        if (base + size > 0x100000000ULL)
+                return 0;
+#endif
+        return 1;
+}
+EXPORT_SYMBOL_GPL(is_io_mapping_possible);
+
 /* Map 'pfn' using fixed map 'type' and protections 'prot'
  */
 void *
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index 93d82038af4b..9f205030d9aa 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -32,11 +32,14 @@ struct kmmio_fault_page {
         struct list_head list;
         struct kmmio_fault_page *release_next;
         unsigned long page; /* location of the fault page */
+        bool old_presence; /* page presence prior to arming */
+        bool armed;
 
         /*
          * Number of times this page has been registered as a part
          * of a probe. If zero, page is disarmed and this may be freed.
-         * Used only by writers (RCU).
+         * Used only by writers (RCU) and post_kmmio_handler().
+         * Protected by kmmio_lock, when linked into kmmio_page_table.
          */
         int count;
 };
@@ -105,57 +108,85 @@ static struct kmmio_fault_page *get_kmmio_fault_page(unsigned long page)
         return NULL;
 }
 
-static void set_page_present(unsigned long addr, bool present,
-                                                        unsigned int *pglevel)
+static void set_pmd_presence(pmd_t *pmd, bool present, bool *old)
+{
+        pmdval_t v = pmd_val(*pmd);
+        *old = !!(v & _PAGE_PRESENT);
+        v &= ~_PAGE_PRESENT;
+        if (present)
+                v |= _PAGE_PRESENT;
+        set_pmd(pmd, __pmd(v));
+}
+
+static void set_pte_presence(pte_t *pte, bool present, bool *old)
+{
+        pteval_t v = pte_val(*pte);
+        *old = !!(v & _PAGE_PRESENT);
+        v &= ~_PAGE_PRESENT;
+        if (present)
+                v |= _PAGE_PRESENT;
+        set_pte_atomic(pte, __pte(v));
+}
+
+static int set_page_presence(unsigned long addr, bool present, bool *old)
 {
-        pteval_t pteval;
-        pmdval_t pmdval;
         unsigned int level;
-        pmd_t *pmd;
         pte_t *pte = lookup_address(addr, &level);
 
         if (!pte) {
                 pr_err("kmmio: no pte for page 0x%08lx\n", addr);
-                return;
+                return -1;
         }
 
-        if (pglevel)
-                *pglevel = level;
-
         switch (level) {
         case PG_LEVEL_2M:
-                pmd = (pmd_t *)pte;
-                pmdval = pmd_val(*pmd) & ~_PAGE_PRESENT;
-                if (present)
-                        pmdval |= _PAGE_PRESENT;
-                set_pmd(pmd, __pmd(pmdval));
+                set_pmd_presence((pmd_t *)pte, present, old);
                 break;
-
         case PG_LEVEL_4K:
-                pteval = pte_val(*pte) & ~_PAGE_PRESENT;
-                if (present)
-                        pteval |= _PAGE_PRESENT;
-                set_pte_atomic(pte, __pte(pteval));
+                set_pte_presence(pte, present, old);
                 break;
-
         default:
                 pr_err("kmmio: unexpected page level 0x%x.\n", level);
-                return;
+                return -1;
         }
 
         __flush_tlb_one(addr);
+        return 0;
 }
 
-/** Mark the given page as not present. Access to it will trigger a fault. */
-static void arm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
+/*
+ * Mark the given page as not present. Access to it will trigger a fault.
+ *
+ * Struct kmmio_fault_page is protected by RCU and kmmio_lock, but the
+ * protection is ignored here. RCU read lock is assumed held, so the struct
+ * will not disappear unexpectedly. Furthermore, the caller must guarantee,
+ * that double arming the same virtual address (page) cannot occur.
+ *
+ * Double disarming on the other hand is allowed, and may occur when a fault
+ * and mmiotrace shutdown happen simultaneously.
+ */
+static int arm_kmmio_fault_page(struct kmmio_fault_page *f)
 {
-        set_page_present(page & PAGE_MASK, false, pglevel);
+        int ret;
+        WARN_ONCE(f->armed, KERN_ERR "kmmio page already armed.\n");
+        if (f->armed) {
+                pr_warning("kmmio double-arm: page 0x%08lx, ref %d, old %d\n",
+                                        f->page, f->count, f->old_presence);
+        }
+        ret = set_page_presence(f->page, false, &f->old_presence);
+        WARN_ONCE(ret < 0, KERN_ERR "kmmio arming 0x%08lx failed.\n", f->page);
+        f->armed = true;
+        return ret;
 }
 
-/** Mark the given page as present. */
-static void disarm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
+/** Restore the given page to saved presence state. */
+static void disarm_kmmio_fault_page(struct kmmio_fault_page *f)
 {
-        set_page_present(page & PAGE_MASK, true, pglevel);
+        bool tmp;
+        int ret = set_page_presence(f->page, f->old_presence, &tmp);
+        WARN_ONCE(ret < 0,
+                        KERN_ERR "kmmio disarming 0x%08lx failed.\n", f->page);
+        f->armed = false;
 }
 
 /*
@@ -202,28 +233,32 @@ int kmmio_handler(struct pt_regs *regs, unsigned long addr)
 
         ctx = &get_cpu_var(kmmio_ctx);
         if (ctx->active) {
-                disarm_kmmio_fault_page(faultpage->page, NULL);
                 if (addr == ctx->addr) {
                         /*
-                         * On SMP we sometimes get recursive probe hits on the
-                         * same address. Context is already saved, fall out.
+                         * A second fault on the same page means some other
+                         * condition needs handling by do_page_fault(), the
+                         * page really not being present is the most common.
                          */
-                        pr_debug("kmmio: duplicate probe hit on CPU %d, for "
-                                                "address 0x%08lx.\n",
-                                                smp_processor_id(), addr);
-                        ret = 1;
-                        goto no_kmmio_ctx;
-                }
-                /*
-                 * Prevent overwriting already in-flight context.
-                 * This should not happen, let's hope disarming at least
-                 * prevents a panic.
-                 */
-                pr_emerg("kmmio: recursive probe hit on CPU %d, "
+                        pr_debug("kmmio: secondary hit for 0x%08lx CPU %d.\n",
+                                        addr, smp_processor_id());
+
+                        if (!faultpage->old_presence)
+                                pr_info("kmmio: unexpected secondary hit for "
+                                        "address 0x%08lx on CPU %d.\n", addr,
+                                        smp_processor_id());
+                } else {
+                        /*
+                         * Prevent overwriting already in-flight context.
+                         * This should not happen, let's hope disarming at
+                         * least prevents a panic.
+                         */
+                        pr_emerg("kmmio: recursive probe hit on CPU %d, "
                                         "for address 0x%08lx. Ignoring.\n",
                                         smp_processor_id(), addr);
-                pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
-                                        ctx->addr);
+                        pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
+                                                ctx->addr);
+                        disarm_kmmio_fault_page(faultpage);
+                }
                 goto no_kmmio_ctx;
         }
         ctx->active++;
@@ -244,7 +279,7 @@ int kmmio_handler(struct pt_regs *regs, unsigned long addr)
         regs->flags &= ~X86_EFLAGS_IF;
 
         /* Now we set present bit in PTE and single step. */
-        disarm_kmmio_fault_page(ctx->fpage->page, NULL);
+        disarm_kmmio_fault_page(ctx->fpage);
 
         /*
          * If another cpu accesses the same page while we are stepping,
@@ -275,7 +310,7 @@ static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
         struct kmmio_context *ctx = &get_cpu_var(kmmio_ctx);
 
         if (!ctx->active) {
-                pr_debug("kmmio: spurious debug trap on CPU %d.\n",
+                pr_warning("kmmio: spurious debug trap on CPU %d.\n",
                                                         smp_processor_id());
                 goto out;
         }
@@ -283,7 +318,11 @@ static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
         if (ctx->probe && ctx->probe->post_handler)
                 ctx->probe->post_handler(ctx->probe, condition, regs);
 
-        arm_kmmio_fault_page(ctx->fpage->page, NULL);
+        /* Prevent racing against release_kmmio_fault_page(). */
+        spin_lock(&kmmio_lock);
+        if (ctx->fpage->count)
+                arm_kmmio_fault_page(ctx->fpage);
+        spin_unlock(&kmmio_lock);
 
         regs->flags &= ~X86_EFLAGS_TF;
         regs->flags |= ctx->saved_flags;
@@ -315,20 +354,24 @@ static int add_kmmio_fault_page(unsigned long page)
         f = get_kmmio_fault_page(page);
         if (f) {
                 if (!f->count)
-                        arm_kmmio_fault_page(f->page, NULL);
+                        arm_kmmio_fault_page(f);
                 f->count++;
                 return 0;
         }
 
-        f = kmalloc(sizeof(*f), GFP_ATOMIC);
+        f = kzalloc(sizeof(*f), GFP_ATOMIC);
         if (!f)
                 return -1;
 
         f->count = 1;
         f->page = page;
-        list_add_rcu(&f->list, kmmio_page_list(f->page));
 
-        arm_kmmio_fault_page(f->page, NULL);
+        if (arm_kmmio_fault_page(f)) {
+                kfree(f);
+                return -1;
+        }
+
+        list_add_rcu(&f->list, kmmio_page_list(f->page));
 
         return 0;
 }
@@ -347,7 +390,7 @@ static void release_kmmio_fault_page(unsigned long page,
         f->count--;
         BUG_ON(f->count < 0);
         if (!f->count) {
-                disarm_kmmio_fault_page(f->page, NULL);
+                disarm_kmmio_fault_page(f);
                 f->release_next = *release_list;
                 *release_list = f;
         }
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index aebbf67a79d0..e0ab173b6974 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -11,6 +11,7 @@
 #include <linux/bootmem.h>
 #include <linux/debugfs.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
@@ -868,6 +869,7 @@ pgprot_t pgprot_writecombine(pgprot_t prot)
         else
                 return pgprot_noncached(prot);
 }
+EXPORT_SYMBOL_GPL(pgprot_writecombine);
 
 #if defined(CONFIG_DEBUG_FS) && defined(CONFIG_X86_PAT)
 
diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c
index ab50a8d7402c..427fd1b56df5 100644
--- a/arch/x86/mm/testmmiotrace.c
+++ b/arch/x86/mm/testmmiotrace.c
@@ -1,5 +1,5 @@
 /*
- * Written by Pekka Paalanen, 2008 <pq@iki.fi>
+ * Written by Pekka Paalanen, 2008-2009 <pq@iki.fi>
  */
 #include <linux/module.h>
 #include <linux/io.h>
@@ -9,35 +9,74 @@
 
 static unsigned long mmio_address;
 module_param(mmio_address, ulong, 0);
-MODULE_PARM_DESC(mmio_address, "Start address of the mapping of 16 kB.");
+MODULE_PARM_DESC(mmio_address, " Start address of the mapping of 16 kB "
+                                "(or 8 MB if read_far is non-zero).");
+
+static unsigned long read_far = 0x400100;
+module_param(read_far, ulong, 0);
+MODULE_PARM_DESC(read_far, " Offset of a 32-bit read within 8 MB "
+                                "(default: 0x400100).");
+
+static unsigned v16(unsigned i)
+{
+        return i * 12 + 7;
+}
+
+static unsigned v32(unsigned i)
+{
+        return i * 212371 + 13;
+}
 
 static void do_write_test(void __iomem *p)
 {
         unsigned int i;
+        pr_info(MODULE_NAME ": write test.\n");
         mmiotrace_printk("Write test.\n");
+
         for (i = 0; i < 256; i++)
                 iowrite8(i, p + i);
+
         for (i = 1024; i < (5 * 1024); i += 2)
-                iowrite16(i * 12 + 7, p + i);
+                iowrite16(v16(i), p + i);
+
         for (i = (5 * 1024); i < (16 * 1024); i += 4)
-                iowrite32(i * 212371 + 13, p + i);
+                iowrite32(v32(i), p + i);
 }
 
 static void do_read_test(void __iomem *p)
 {
         unsigned int i;
+        unsigned errs[3] = { 0 };
+        pr_info(MODULE_NAME ": read test.\n");
         mmiotrace_printk("Read test.\n");
+
         for (i = 0; i < 256; i++)
-                ioread8(p + i);
+                if (ioread8(p + i) != i)
+                        ++errs[0];
+
         for (i = 1024; i < (5 * 1024); i += 2)
-                ioread16(p + i);
+                if (ioread16(p + i) != v16(i))
+                        ++errs[1];
+
         for (i = (5 * 1024); i < (16 * 1024); i += 4)
-                ioread32(p + i);
+                if (ioread32(p + i) != v32(i))
+                        ++errs[2];
+
+        mmiotrace_printk("Read errors: 8-bit %d, 16-bit %d, 32-bit %d.\n",
+                                                errs[0], errs[1], errs[2]);
 }
 
-static void do_test(void)
+static void do_read_far_test(void __iomem *p)
 {
-        void __iomem *p = ioremap_nocache(mmio_address, 0x4000);
+        pr_info(MODULE_NAME ": read far test.\n");
+        mmiotrace_printk("Read far test.\n");
+
+        ioread32(p + read_far);
+}
+
+static void do_test(unsigned long size)
+{
+        void __iomem *p = ioremap_nocache(mmio_address, size);
         if (!p) {
                 pr_err(MODULE_NAME ": could not ioremap, aborting.\n");
                 return;
@@ -45,11 +84,15 @@ static void do_test(void)
         mmiotrace_printk("ioremap returned %p.\n", p);
         do_write_test(p);
         do_read_test(p);
+        if (read_far && read_far < size - 4)
+                do_read_far_test(p);
         iounmap(p);
 }
 
 static int __init init(void)
 {
+        unsigned long size = (read_far) ? (8 << 20) : (16 << 10);
+
         if (mmio_address == 0) {
                 pr_err(MODULE_NAME ": you have to use the module argument "
                                                         "mmio_address.\n");
@@ -58,10 +101,11 @@ static int __init init(void)
                 return -ENXIO;
         }
 
-        pr_warning(MODULE_NAME ": WARNING: mapping 16 kB @ 0x%08lx "
-                                        "in PCI address space, and writing "
-                                        "rubbish in there.\n", mmio_address);
-        do_test();
+        pr_warning(MODULE_NAME ": WARNING: mapping %lu kB @ 0x%08lx in PCI "
+                "address space, and writing 16 kB of rubbish in there.\n",
+                 size >> 10, mmio_address);
+        do_test(size);
+        pr_info(MODULE_NAME ": All done.\n");
         return 0;
 }
 
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index e9f80c744cf3..10131fbdaada 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -78,8 +78,18 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs)
         if (cpu_has_arch_perfmon) {
                 union cpuid10_eax eax;
                 eax.full = cpuid_eax(0xa);
-                if (counter_width < eax.split.bit_width)
-                        counter_width = eax.split.bit_width;
+
+                /*
+                 * For Core2 (family 6, model 15), don't reset the
+                 * counter width:
+                 */
+                if (!(eax.split.version_id == 0 &&
+                        current_cpu_data.x86 == 6 &&
+                                current_cpu_data.x86_model == 15)) {
+
+                        if (counter_width < eax.split.bit_width)
+                                counter_width = eax.split.bit_width;
+                }
         }
 
         /* clear all counters */
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index bea215230b20..b58e96338149 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1672,6 +1672,9 @@ asmlinkage void __init xen_start_kernel(void)
            possible map and a non-dummy shared_info. */
         per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
 
+        local_irq_disable();
+        early_boot_irqs_off();
+
         xen_raw_console_write("mapping kernel into physical memory\n");
         pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);