Merge branch 'master' into for-linus

Conflicts:
	block/Kconfig

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

45 files changed, 194 insertions, 542 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e98440371525..0eacb1ffb421 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -102,6 +102,9 @@ config ZONE_DMA
 config SBUS
         bool
 
+config NEED_DMA_MAP_STATE
+       def_bool (X86_64 || DMAR || DMA_API_DEBUG)
+
 config GENERIC_ISA_DMA
         def_bool y
 
@@ -659,7 +662,7 @@ config GART_IOMMU
         bool "GART IOMMU support" if EMBEDDED
         default y
         select SWIOTLB
-        depends on X86_64 && PCI
+        depends on X86_64 && PCI && K8_NB
         ---help---
           Support for full DMA access of devices with 32bit memory access only
           on systems with more than 3GB. This is usually needed for USB,
@@ -2058,7 +2061,7 @@ endif # X86_32
 
 config K8_NB
         def_bool y
-        depends on AGP_AMD64 || (X86_64 && (GART_IOMMU || (PCI && NUMA)))
+        depends on CPU_SUP_AMD && PCI
 
 source "drivers/pcmcia/Kconfig"
 
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 39b98ed2c1b9..575331cb2a8a 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -22,7 +22,7 @@
 
 #include <asm/asm-offsets.h>
 
-/* return adress at 0 */
+/* return address at 0 */
 
 #define in_blk    12  /* input byte array address parameter*/
 #define out_blk   8  /* output byte array address parameter*/
@@ -230,8 +230,8 @@ twofish_enc_blk:
         push    %edi
 
         mov     tfm + 16(%esp), %ebp    /* abuse the base pointer: set new base bointer to the crypto tfm */
-        add     $crypto_tfm_ctx_offset, %ebp    /* ctx adress */
-        mov     in_blk+16(%esp),%edi    /* input adress in edi */
+        add     $crypto_tfm_ctx_offset, %ebp    /* ctx address */
+        mov     in_blk+16(%esp),%edi    /* input address in edi */
 
         mov     (%edi),         %eax
         mov     b_offset(%edi), %ebx
@@ -286,8 +286,8 @@ twofish_dec_blk:
 
 
         mov     tfm + 16(%esp), %ebp    /* abuse the base pointer: set new base bointer to the crypto tfm */
-        add     $crypto_tfm_ctx_offset, %ebp    /* ctx adress */
-        mov     in_blk+16(%esp),%edi    /* input adress in edi */
+        add     $crypto_tfm_ctx_offset, %ebp    /* ctx address */
+        mov     in_blk+16(%esp),%edi    /* input address in edi */
 
         mov     (%edi),         %eax
         mov     b_offset(%edi), %ebx
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index 35974a586615..573aa102542e 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -221,11 +221,11 @@
 twofish_enc_blk:
         pushq    R1
 
-        /* %rdi contains the crypto tfm adress */
-        /* %rsi contains the output adress */
-        /* %rdx contains the input adress */
-        add     $crypto_tfm_ctx_offset, %rdi    /* set ctx adress */
-        /* ctx adress is moved to free one non-rex register
+        /* %rdi contains the crypto tfm address */
+        /* %rsi contains the output address */
+        /* %rdx contains the input address */
+        add     $crypto_tfm_ctx_offset, %rdi    /* set ctx address */
+        /* ctx address is moved to free one non-rex register
         as target for the 8bit high operations */
         mov     %rdi,           %r11
 
@@ -274,11 +274,11 @@ twofish_enc_blk:
 twofish_dec_blk:
         pushq    R1
 
-        /* %rdi contains the crypto tfm adress */
-        /* %rsi contains the output adress */
-        /* %rdx contains the input adress */
-        add     $crypto_tfm_ctx_offset, %rdi    /* set ctx adress */
-        /* ctx adress is moved to free one non-rex register
+        /* %rdi contains the crypto tfm address */
+        /* %rsi contains the output address */
+        /* %rdx contains the input address */
+        add     $crypto_tfm_ctx_offset, %rdi    /* set ctx address */
+        /* ctx address is moved to free one non-rex register
         as target for the 8bit high operations */
         mov     %rdi,           %r11
 
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 53147ad85b96..59b4556a5b92 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -563,7 +563,7 @@ ia32_sys_call_table:
         .quad quiet_ni_syscall                  /* old mpx syscall holder */
         .quad sys_setpgid
         .quad quiet_ni_syscall                  /* old ulimit syscall holder */
-        .quad sys32_olduname
+        .quad sys_olduname
         .quad sys_umask         /* 60 */
         .quad sys_chroot
         .quad compat_sys_ustat
@@ -586,7 +586,7 @@ ia32_sys_call_table:
         .quad compat_sys_settimeofday
         .quad sys_getgroups16   /* 80 */
         .quad sys_setgroups16
-        .quad sys32_old_select
+        .quad compat_sys_old_select
         .quad sys_symlink
         .quad sys_lstat
         .quad sys_readlink              /* 85 */
@@ -613,7 +613,7 @@ ia32_sys_call_table:
         .quad compat_sys_newstat
         .quad compat_sys_newlstat
         .quad compat_sys_newfstat
-        .quad sys32_uname
+        .quad sys_uname
         .quad stub32_iopl               /* 110 */
         .quad sys_vhangup
         .quad quiet_ni_syscall  /* old "idle" system call */
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 422572c77923..74c35431b7d8 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -143,7 +143,7 @@ asmlinkage long sys32_fstatat(unsigned int dfd, char __user *filename,
  * block for parameter passing..
  */
 
-struct mmap_arg_struct {
+struct mmap_arg_struct32 {
         unsigned int addr;
         unsigned int len;
         unsigned int prot;
@@ -152,9 +152,9 @@ struct mmap_arg_struct {
         unsigned int offset;
 };
 
-asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
+asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
 {
-        struct mmap_arg_struct a;
+        struct mmap_arg_struct32 a;
 
         if (copy_from_user(&a, arg, sizeof(a)))
                 return -EFAULT;
@@ -332,24 +332,6 @@ asmlinkage long sys32_alarm(unsigned int seconds)
         return alarm_setitimer(seconds);
 }
 
-struct sel_arg_struct {
-        unsigned int n;
-        unsigned int inp;
-        unsigned int outp;
-        unsigned int exp;
-        unsigned int tvp;
-};
-
-asmlinkage long sys32_old_select(struct sel_arg_struct __user *arg)
-{
-        struct sel_arg_struct a;
-
-        if (copy_from_user(&a, arg, sizeof(a)))
-                return -EFAULT;
-        return compat_sys_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp),
-                                 compat_ptr(a.exp), compat_ptr(a.tvp));
-}
-
 asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
                               int options)
 {
@@ -466,58 +448,6 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
         return ret;
 }
 
-asmlinkage long sys32_olduname(struct oldold_utsname __user *name)
-{
-        char *arch = "x86_64";
-        int err;
-
-        if (!name)
-                return -EFAULT;
-        if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
-                return -EFAULT;
-
-        down_read(&uts_sem);
-
-        err = __copy_to_user(&name->sysname, &utsname()->sysname,
-                             __OLD_UTS_LEN);
-        err |= __put_user(0, name->sysname+__OLD_UTS_LEN);
-        err |= __copy_to_user(&name->nodename, &utsname()->nodename,
-                              __OLD_UTS_LEN);
-        err |= __put_user(0, name->nodename+__OLD_UTS_LEN);
-        err |= __copy_to_user(&name->release, &utsname()->release,
-                              __OLD_UTS_LEN);
-        err |= __put_user(0, name->release+__OLD_UTS_LEN);
-        err |= __copy_to_user(&name->version, &utsname()->version,
-                              __OLD_UTS_LEN);
-        err |= __put_user(0, name->version+__OLD_UTS_LEN);
-
-        if (personality(current->personality) == PER_LINUX32)
-                arch = "i686";
-
-        err |= __copy_to_user(&name->machine, arch, strlen(arch) + 1);
-
-        up_read(&uts_sem);
-
-        err = err ? -EFAULT : 0;
-
-        return err;
-}
-
-long sys32_uname(struct old_utsname __user *name)
-{
-        int err;
-
-        if (!name)
-                return -EFAULT;
-        down_read(&uts_sem);
-        err = copy_to_user(name, utsname(), sizeof(*name));
-        up_read(&uts_sem);
-        if (personality(current->personality) == PER_LINUX32)
-                err |= copy_to_user(&name->machine, "i686", 5);
-
-        return err ? -EFAULT : 0;
-}
-
 asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
                              compat_uptr_t __user *envp, struct pt_regs *regs)
 {
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 9a9c7bdc923d..306160e58b48 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -8,7 +8,8 @@
 #include <linux/sched.h>
 #include <asm/user32.h>
 
-#define COMPAT_USER_HZ  100
+#define COMPAT_USER_HZ          100
+#define COMPAT_UTS_MACHINE      "i686\0\0"
 
 typedef u32             compat_size_t;
 typedef s32             compat_ssize_t;
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 0675a7c4c20e..2a1bd8f4f23a 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -10,7 +10,6 @@
  * (display/resolving)
  */
 struct arch_hw_breakpoint {
-        char            *name; /* Contains name of the symbol to set bkpt */
         unsigned long   address;
         u8              len;
         u8              type;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 3e002ca5a287..404a880ea325 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -97,34 +97,6 @@ extern void pci_iommu_alloc(void);
 
 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
 
-#if defined(CONFIG_X86_64) || defined(CONFIG_DMAR) || defined(CONFIG_DMA_API_DEBUG)
-
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       \
-                dma_addr_t ADDR_NAME;
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         \
-                __u32 LEN_NAME;
-#define pci_unmap_addr(PTR, ADDR_NAME)                  \
-                ((PTR)->ADDR_NAME)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)         \
-                (((PTR)->ADDR_NAME) = (VAL))
-#define pci_unmap_len(PTR, LEN_NAME)                    \
-                ((PTR)->LEN_NAME)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL)           \
-                (((PTR)->LEN_NAME) = (VAL))
-
-#else
-
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME[0];
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0];
-#define pci_unmap_addr(PTR, ADDR_NAME)  sizeof((PTR)->ADDR_NAME)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
-                do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
-#define pci_unmap_len(PTR, LEN_NAME)            sizeof((PTR)->LEN_NAME)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
-                do { break; } while (pci_unmap_len(PTR, LEN_NAME))
-
-#endif
-
 #endif  /* __KERNEL__ */
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index befd172c82ad..db6109a885a7 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -18,7 +18,7 @@
 #define MSR_ARCH_PERFMON_EVENTSEL0                           0x186
 #define MSR_ARCH_PERFMON_EVENTSEL1                           0x187
 
-#define ARCH_PERFMON_EVENTSEL0_ENABLE                     (1 << 22)
+#define ARCH_PERFMON_EVENTSEL_ENABLE                      (1 << 22)
 #define ARCH_PERFMON_EVENTSEL_ANY                         (1 << 21)
 #define ARCH_PERFMON_EVENTSEL_INT                         (1 << 20)
 #define ARCH_PERFMON_EVENTSEL_OS                          (1 << 17)
@@ -50,7 +50,7 @@
          INTEL_ARCH_INV_MASK| \
          INTEL_ARCH_EDGE_MASK|\
          INTEL_ARCH_UNIT_MASK|\
-         INTEL_ARCH_EVTSEL_MASK)
+         INTEL_ARCH_EVENT_MASK)
 
 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL                 0x3c
 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK         (0x00 << 8)
@@ -117,6 +117,18 @@ union cpuid10_edx {
  */
 #define X86_PMC_IDX_FIXED_BTS                           (X86_PMC_IDX_FIXED + 16)
 
+/* IbsFetchCtl bits/masks */
+#define IBS_FETCH_RAND_EN               (1ULL<<57)
+#define IBS_FETCH_VAL                   (1ULL<<49)
+#define IBS_FETCH_ENABLE                (1ULL<<48)
+#define IBS_FETCH_CNT                   0xFFFF0000ULL
+#define IBS_FETCH_MAX_CNT               0x0000FFFFULL
+
+/* IbsOpCtl bits */
+#define IBS_OP_CNT_CTL                  (1ULL<<19)
+#define IBS_OP_VAL                      (1ULL<<18)
+#define IBS_OP_ENABLE                   (1ULL<<17)
+#define IBS_OP_MAX_CNT                  0x0000FFFFULL
 
 #ifdef CONFIG_PERF_EVENTS
 extern void init_hw_perf_events(void);
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 20102808b191..69a686a7dff0 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -274,14 +274,7 @@ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
                 return 0;
 }
 
-/*
- * These are defined as per linux/ptrace.h, which see.
- */
 #define arch_has_single_step()  (1)
-extern void user_enable_single_step(struct task_struct *);
-extern void user_disable_single_step(struct task_struct *);
-
-extern void user_enable_block_step(struct task_struct *);
 #ifdef CONFIG_X86_DEBUGCTLMSR
 #define arch_has_block_step()   (1)
 #else
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index d5f69045c100..3ad421784ae7 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -26,8 +26,8 @@ asmlinkage long sys32_lstat64(char __user *, struct stat64 __user *);
 asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
 asmlinkage long sys32_fstatat(unsigned int, char __user *,
                               struct stat64 __user *, int);
-struct mmap_arg_struct;
-asmlinkage long sys32_mmap(struct mmap_arg_struct __user *);
+struct mmap_arg_struct32;
+asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
 asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long);
 
 struct sigaction32;
@@ -40,8 +40,6 @@ asmlinkage long sys32_rt_sigprocmask(int, compat_sigset_t __user *,
                                      compat_sigset_t __user *, unsigned int);
 asmlinkage long sys32_alarm(unsigned int);
 
-struct sel_arg_struct;
-asmlinkage long sys32_old_select(struct sel_arg_struct __user *);
 asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
 asmlinkage long sys32_sysfs(int, u32, u32);
 
@@ -56,11 +54,6 @@ asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32);
 asmlinkage long sys32_personality(unsigned long);
 asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
 
-struct oldold_utsname;
-struct old_utsname;
-asmlinkage long sys32_olduname(struct oldold_utsname __user *);
-long sys32_uname(struct old_utsname __user *);
-
 asmlinkage long sys32_execve(char __user *, compat_uptr_t __user *,
                              compat_uptr_t __user *, struct pt_regs *);
 asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 8868b9420b0e..5c044b43e9a7 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -50,18 +50,6 @@ asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
                              struct old_sigaction __user *);
 unsigned long sys_sigreturn(struct pt_regs *);
 
-/* kernel/sys_i386_32.c */
-struct mmap_arg_struct;
-struct sel_arg_struct;
-struct oldold_utsname;
-struct old_utsname;
-
-asmlinkage int old_mmap(struct mmap_arg_struct __user *);
-asmlinkage int old_select(struct sel_arg_struct __user *);
-asmlinkage int sys_ipc(uint, int, int, int, void __user *, long);
-asmlinkage int sys_uname(struct old_utsname __user *);
-asmlinkage int sys_olduname(struct oldold_utsname __user *);
-
 /* kernel/vm86_32.c */
 int sys_vm86old(struct vm86_struct __user *, struct pt_regs *);
 int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
@@ -73,11 +61,8 @@ int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
 long sys_arch_prctl(int, unsigned long);
 
 /* kernel/sys_x86_64.c */
-struct new_utsname;
-
 asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
                          unsigned long, unsigned long, unsigned long);
-asmlinkage long sys_uname(struct new_utsname __user *);
 
 #endif /* CONFIG_X86_32 */
 #endif /* _ASM_X86_SYSCALLS_H */
diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h
index 3baf379fa840..beb9b5f8f8a4 100644
--- a/arch/x86/include/asm/unistd_32.h
+++ b/arch/x86/include/asm/unistd_32.h
@@ -354,6 +354,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
@@ -366,6 +367,9 @@
 #define __ARCH_WANT_SYS_LLSEEK
 #define __ARCH_WANT_SYS_NICE
 #define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_UNAME
+#define __ARCH_WANT_SYS_OLD_MMAP
+#define __ARCH_WANT_SYS_OLD_SELECT
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h
index 4843f7ba754a..ff4307b0e81e 100644
--- a/arch/x86/include/asm/unistd_64.h
+++ b/arch/x86/include/asm/unistd_64.h
@@ -146,7 +146,7 @@ __SYSCALL(__NR_wait4, sys_wait4)
 #define __NR_kill                               62
 __SYSCALL(__NR_kill, sys_kill)
 #define __NR_uname                              63
-__SYSCALL(__NR_uname, sys_uname)
+__SYSCALL(__NR_uname, sys_newuname)
 
 #define __NR_semget                             64
 __SYSCALL(__NR_semget, sys_semget)
@@ -680,6 +680,7 @@ __SYSCALL(__NR_recvmmsg, sys_recvmmsg)
 #define __ARCH_WANT_SYS_LLSEEK
 #define __ARCH_WANT_SYS_NICE
 #define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_UNAME
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index a54d714545ff..0061ea263061 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -490,6 +490,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
  *  ACPI based hotplug support for CPU
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
+#include <acpi/processor.h>
 
 static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
@@ -567,6 +568,8 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
                 goto free_new_map;
         }
 
+        acpi_processor_set_pdc(handle);
+
         cpu = cpumask_first(new_map);
         acpi_map_cpu2node(handle, cpu, physid);
 
@@ -1293,23 +1296,6 @@ static int __init dmi_disable_acpi(const struct dmi_system_id *d)
 }
 
 /*
- * Limit ACPI to CPU enumeration for HT
- */
-static int __init force_acpi_ht(const struct dmi_system_id *d)
-{
-        if (!acpi_force) {
-                printk(KERN_NOTICE "%s detected: force use of acpi=ht\n",
-                       d->ident);
-                disable_acpi();
-                acpi_ht = 1;
-        } else {
-                printk(KERN_NOTICE
-                       "Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
-        }
-        return 0;
-}
-
-/*
  * Force ignoring BIOS IRQ0 pin2 override
  */
 static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
@@ -1345,82 +1331,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
          },
 
         /*
-         * Boxes that need acpi=ht
-         */
-        {
-         .callback = force_acpi_ht,
-         .ident = "FSC Primergy T850",
-         .matches = {
-                     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "HP VISUALIZE NT Workstation",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "Compaq Workstation W8000",
-         .matches = {
-                     DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "ASUS CUR-DLS",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-                     DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "ABIT i440BX-W83977",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
-                     DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "IBM Bladecenter",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                     DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "IBM eServer xSeries 360",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                     DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "IBM eserver xSeries 330",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                     DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
-                     },
-         },
-        {
-         .callback = force_acpi_ht,
-         .ident = "IBM eserver xSeries 440",
-         .matches = {
-                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
-                     },
-         },
-
-        /*
          * Boxes that need ACPI PCI IRQ routing disabled
          */
         {
@@ -1652,8 +1562,10 @@ static int __init parse_acpi(char *arg)
         }
         /* Limit ACPI just to boot-time to enable HT */
         else if (strcmp(arg, "ht") == 0) {
-                if (!acpi_force)
+                if (!acpi_force) {
+                        printk(KERN_WARNING "acpi=ht will be removed in Linux-2.6.35\n");
                         disable_acpi();
+                }
                 acpi_ht = 1;
         }
         /* acpi=rsdt use RSDT instead of XSDT */
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index f147a95fd84a..3704997e8b25 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -31,7 +31,6 @@
 #include <asm/x86_init.h>
 
 int gart_iommu_aperture;
-EXPORT_SYMBOL_GPL(gart_iommu_aperture);
 int gart_iommu_aperture_disabled __initdata;
 int gart_iommu_aperture_allowed __initdata;
 
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index e3c3d820c325..09d3b17ce0c2 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -223,7 +223,7 @@ struct apic apic_flat =  {
 };
 
 /*
- * Physflat mode is used when there are more than 8 CPUs on a AMD system.
+ * Physflat mode is used when there are more than 8 CPUs on a system.
  * We cannot use logical delivery in this case because the mask
  * overflows, so use physical mode.
  */
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 3740c8a4eae7..49dbeaef2a27 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -120,11 +120,9 @@ EXPORT_SYMBOL_GPL(uv_possible_blades);
 unsigned long sn_rtc_cycles_per_second;
 EXPORT_SYMBOL(sn_rtc_cycles_per_second);
 
-/* Start with all IRQs pointing to boot CPU.  IRQ balancing will shift them. */
-
 static const struct cpumask *uv_target_cpus(void)
 {
-        return cpumask_of(0);
+        return cpu_online_mask;
 }
 
 static void uv_vector_allocation_domain(int cpu, struct cpumask *retmask)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 879666f4d871..7e1cca13af35 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -70,7 +70,8 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
         if (c->x86_power & (1 << 8)) {
                 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
                 set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
-                sched_clock_stable = 1;
+                if (!check_tsc_unstable())
+                        sched_clock_stable = 1;
         }
 
         /*
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index eddb1bdd1b8f..b3eeb66c0a51 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -903,7 +903,7 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
         return ret;
 }
 
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
         .show   = show,
         .store  = store,
 };
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index a8aacd4b513c..3ab9c886b613 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -46,6 +46,13 @@
 
 #include "mce-internal.h"
 
+static DEFINE_MUTEX(mce_read_mutex);
+
+#define rcu_dereference_check_mce(p) \
+        rcu_dereference_check((p), \
+                              rcu_read_lock_sched_held() || \
+                              lockdep_is_held(&mce_read_mutex))
+
 #define CREATE_TRACE_POINTS
 #include <trace/events/mce.h>
 
@@ -158,7 +165,7 @@ void mce_log(struct mce *mce)
         mce->finished = 0;
         wmb();
         for (;;) {
-                entry = rcu_dereference(mcelog.next);
+                entry = rcu_dereference_check_mce(mcelog.next);
                 for (;;) {
                         /*
                          * When the buffer fills up discard new entries.
@@ -1485,8 +1492,6 @@ static void collect_tscs(void *data)
         rdtscll(cpu_tsc[smp_processor_id()]);
 }
 
-static DEFINE_MUTEX(mce_read_mutex);
-
 static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
                         loff_t *off)
 {
@@ -1500,7 +1505,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
                 return -ENOMEM;
 
         mutex_lock(&mce_read_mutex);
-        next = rcu_dereference(mcelog.next);
+        next = rcu_dereference_check_mce(mcelog.next);
 
         /* Only supports full reads right now */
         if (*off != 0 || usize < MCE_LOG_LEN*sizeof(struct mce)) {
@@ -1565,7 +1570,7 @@ timeout:
 static unsigned int mce_poll(struct file *file, poll_table *wait)
 {
         poll_wait(file, &mce_wait, wait);
-        if (rcu_dereference(mcelog.next))
+        if (rcu_dereference_check_mce(mcelog.next))
                 return POLLIN | POLLRDNORM;
         return 0;
 }
@@ -2044,6 +2049,7 @@ static __init void mce_init_banks(void)
                 struct mce_bank *b = &mce_banks[i];
                 struct sysdev_attribute *a = &b->attr;
 
+                sysfs_attr_init(&a->attr);
                 a->attr.name    = b->attrname;
                 snprintf(b->attrname, ATTR_LEN, "bank%d", i);
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 83a3d1f4efca..cda932ca3ade 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -388,7 +388,7 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
         return ret;
 }
 
-static struct sysfs_ops threshold_ops = {
+static const struct sysfs_ops threshold_ops = {
         .show                   = show,
         .store                  = store,
 };
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index 7c785634af2b..d15df6e49bf0 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -95,7 +95,7 @@ static void cmci_discover(int banks, int boot)
 
                 /* Already owned by someone else? */
                 if (val & CMCI_EN) {
-                        if (test_and_clear_bit(i, owned) || boot)
+                        if (test_and_clear_bit(i, owned) && !boot)
                                 print_update("SHD", &hdr, i);
                         __clear_bit(i, __get_cpu_var(mce_poll_banks));
                         continue;
@@ -107,7 +107,7 @@ static void cmci_discover(int banks, int boot)
 
                 /* Did the enable bit stick? -- the bank supports CMCI */
                 if (val & CMCI_EN) {
-                        if (!test_and_set_bit(i, owned) || boot)
+                        if (!test_and_set_bit(i, owned) && !boot)
                                 print_update("CMCI", &hdr, i);
                         __clear_bit(i, __get_cpu_var(mce_poll_banks));
                 } else {
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index b1fbdeecf6c9..42aafd11e170 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -73,10 +73,10 @@ struct debug_store {
 struct event_constraint {
         union {
                 unsigned long   idxmsk[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
-                u64             idxmsk64[1];
+                u64             idxmsk64;
         };
-        int     code;
-        int     cmask;
+        u64     code;
+        u64     cmask;
         int     weight;
 };
 
@@ -103,7 +103,7 @@ struct cpu_hw_events {
 };
 
 #define __EVENT_CONSTRAINT(c, n, m, w) {\
-        { .idxmsk64[0] = (n) },         \
+        { .idxmsk64 = (n) },            \
         .code = (c),                    \
         .cmask = (m),                   \
         .weight = (w),                  \
@@ -116,7 +116,7 @@ struct cpu_hw_events {
         EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVTSEL_MASK)
 
 #define FIXED_EVENT_CONSTRAINT(c, n)    \
-        EVENT_CONSTRAINT(c, n, INTEL_ARCH_FIXED_MASK)
+        EVENT_CONSTRAINT(c, (1ULL << (32+n)), INTEL_ARCH_FIXED_MASK)
 
 #define EVENT_CONSTRAINT_END            \
         EVENT_CONSTRAINT(0, 0, 0)
@@ -503,6 +503,9 @@ static int __hw_perf_event_init(struct perf_event *event)
          */
         if (attr->type == PERF_TYPE_RAW) {
                 hwc->config |= x86_pmu.raw_event(attr->config);
+                if ((hwc->config & ARCH_PERFMON_EVENTSEL_ANY) &&
+                    perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
+                        return -EACCES;
                 return 0;
         }
 
@@ -553,9 +556,9 @@ static void x86_pmu_disable_all(void)
                 if (!test_bit(idx, cpuc->active_mask))
                         continue;
                 rdmsrl(x86_pmu.eventsel + idx, val);
-                if (!(val & ARCH_PERFMON_EVENTSEL0_ENABLE))
+                if (!(val & ARCH_PERFMON_EVENTSEL_ENABLE))
                         continue;
-                val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
                 wrmsrl(x86_pmu.eventsel + idx, val);
         }
 }
@@ -590,7 +593,7 @@ static void x86_pmu_enable_all(void)
                         continue;
 
                 val = event->hw.config;
-                val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
                 wrmsrl(x86_pmu.eventsel + idx, val);
         }
 }
@@ -612,8 +615,8 @@ static int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
         bitmap_zero(used_mask, X86_PMC_IDX_MAX);
 
         for (i = 0; i < n; i++) {
-                constraints[i] =
-                  x86_pmu.get_event_constraints(cpuc, cpuc->event_list[i]);
+                c = x86_pmu.get_event_constraints(cpuc, cpuc->event_list[i]);
+                constraints[i] = c;
         }
 
         /*
@@ -853,7 +856,7 @@ void hw_perf_enable(void)
 static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc, int idx)
 {
         (void)checking_wrmsrl(hwc->config_base + idx,
-                              hwc->config | ARCH_PERFMON_EVENTSEL0_ENABLE);
+                              hwc->config | ARCH_PERFMON_EVENTSEL_ENABLE);
 }
 
 static inline void x86_pmu_disable_event(struct hw_perf_event *hwc, int idx)
@@ -1094,8 +1097,7 @@ static int x86_pmu_handle_irq(struct pt_regs *regs)
         int idx, handled = 0;
         u64 val;
 
-        data.addr = 0;
-        data.raw = NULL;
+        perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1347,6 +1349,7 @@ static void __init pmu_check_apic(void)
 
 void __init init_hw_perf_events(void)
 {
+        struct event_constraint *c;
         int err;
 
         pr_info("Performance Events: ");
@@ -1395,6 +1398,16 @@ void __init init_hw_perf_events(void)
                 __EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_events) - 1,
                                    0, x86_pmu.num_events);
 
+        if (x86_pmu.event_constraints) {
+                for_each_event_constraint(c, x86_pmu.event_constraints) {
+                        if (c->cmask != INTEL_ARCH_FIXED_MASK)
+                                continue;
+
+                        c->idxmsk64 |= (1ULL << x86_pmu.num_events) - 1;
+                        c->weight += x86_pmu.num_events;
+                }
+        }
+
         pr_info("... version:                %d\n",     x86_pmu.version);
         pr_info("... bit width:              %d\n",     x86_pmu.event_bits);
         pr_info("... generic registers:      %d\n",     x86_pmu.num_events);
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 977e7544738c..44b60c852107 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1,7 +1,7 @@
 #ifdef CONFIG_CPU_SUP_INTEL
 
 /*
- * Intel PerfMon v3. Used on Core2 and later.
+ * Intel PerfMon, used on Core and later.
  */
 static const u64 intel_perfmon_event_map[] =
 {
@@ -27,8 +27,14 @@ static struct event_constraint intel_core_event_constraints[] =
 
 static struct event_constraint intel_core2_event_constraints[] =
 {
-        FIXED_EVENT_CONSTRAINT(0xc0, (0x3|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
-        FIXED_EVENT_CONSTRAINT(0x3c, (0x3|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
+        FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+        FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+        /*
+         * Core2 has Fixed Counter 2 listed as CPU_CLK_UNHALTED.REF and event
+         * 0x013c as CPU_CLK_UNHALTED.BUS and specifies there is a fixed
+         * ratio between these counters.
+         */
+        /* FIXED_EVENT_CONSTRAINT(0x013c, 2),  CPU_CLK_UNHALTED.REF */
         INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
         INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
         INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
@@ -37,14 +43,16 @@ static struct event_constraint intel_core2_event_constraints[] =
         INTEL_EVENT_CONSTRAINT(0x18, 0x1), /* IDLE_DURING_DIV */
         INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
         INTEL_EVENT_CONSTRAINT(0xa1, 0x1), /* RS_UOPS_DISPATCH_CYCLES */
+        INTEL_EVENT_CONSTRAINT(0xc9, 0x1), /* ITLB_MISS_RETIRED (T30-9) */
         INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */
         EVENT_CONSTRAINT_END
 };
 
 static struct event_constraint intel_nehalem_event_constraints[] =
 {
-        FIXED_EVENT_CONSTRAINT(0xc0, (0xf|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
-        FIXED_EVENT_CONSTRAINT(0x3c, (0xf|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
+        FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+        FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+        /* FIXED_EVENT_CONSTRAINT(0x013c, 2), CPU_CLK_UNHALTED.REF */
         INTEL_EVENT_CONSTRAINT(0x40, 0x3), /* L1D_CACHE_LD */
         INTEL_EVENT_CONSTRAINT(0x41, 0x3), /* L1D_CACHE_ST */
         INTEL_EVENT_CONSTRAINT(0x42, 0x3), /* L1D_CACHE_LOCK */
@@ -58,8 +66,9 @@ static struct event_constraint intel_nehalem_event_constraints[] =
 
 static struct event_constraint intel_westmere_event_constraints[] =
 {
-        FIXED_EVENT_CONSTRAINT(0xc0, (0xf|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
-        FIXED_EVENT_CONSTRAINT(0x3c, (0xf|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
+        FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+        FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+        /* FIXED_EVENT_CONSTRAINT(0x013c, 2), CPU_CLK_UNHALTED.REF */
         INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
         INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */
         INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
@@ -68,8 +77,9 @@ static struct event_constraint intel_westmere_event_constraints[] =
 
 static struct event_constraint intel_gen_event_constraints[] =
 {
-        FIXED_EVENT_CONSTRAINT(0xc0, (0x3|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
-        FIXED_EVENT_CONSTRAINT(0x3c, (0x3|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
+        FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+        FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+        /* FIXED_EVENT_CONSTRAINT(0x013c, 2), CPU_CLK_UNHALTED.REF */
         EVENT_CONSTRAINT_END
 };
 
@@ -580,10 +590,9 @@ static void intel_pmu_drain_bts_buffer(void)
 
         ds->bts_index = ds->bts_buffer_base;
 
+        perf_sample_data_init(&data, 0);
 
         data.period     = event->hw.last_period;
-        data.addr       = 0;
-        data.raw        = NULL;
         regs.ip         = 0;
 
         /*
@@ -732,8 +741,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
         int bit, loops;
         u64 ack, status;
 
-        data.addr = 0;
-        data.raw = NULL;
+        perf_sample_data_init(&data, 0);
 
         cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -935,7 +943,7 @@ static __init int intel_pmu_init(void)
                 x86_pmu.event_constraints = intel_nehalem_event_constraints;
                 pr_cont("Nehalem/Corei7 events, ");
                 break;
-        case 28:
+        case 28: /* Atom */
                 memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
                        sizeof(hw_cache_event_ids));
 
@@ -951,6 +959,7 @@ static __init int intel_pmu_init(void)
                 x86_pmu.event_constraints = intel_westmere_event_constraints;
                 pr_cont("Westmere events, ");
                 break;
+
         default:
                 /*
                  * default constraints for v2 and up
diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c
index 1ca5ba078afd..a4e67b99d91c 100644
--- a/arch/x86/kernel/cpu/perf_event_p6.c
+++ b/arch/x86/kernel/cpu/perf_event_p6.c
@@ -62,7 +62,7 @@ static void p6_pmu_disable_all(void)
 
         /* p6 only has one enable register */
         rdmsrl(MSR_P6_EVNTSEL0, val);
-        val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
+        val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
         wrmsrl(MSR_P6_EVNTSEL0, val);
 }
 
@@ -72,7 +72,7 @@ static void p6_pmu_enable_all(void)
 
         /* p6 only has one enable register */
         rdmsrl(MSR_P6_EVNTSEL0, val);
-        val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+        val |= ARCH_PERFMON_EVENTSEL_ENABLE;
         wrmsrl(MSR_P6_EVNTSEL0, val);
 }
 
@@ -83,7 +83,7 @@ p6_pmu_disable_event(struct hw_perf_event *hwc, int idx)
         u64 val = P6_NOP_EVENT;
 
         if (cpuc->enabled)
-                val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
 
         (void)checking_wrmsrl(hwc->config_base + idx, val);
 }
@@ -95,7 +95,7 @@ static void p6_pmu_enable_event(struct hw_perf_event *hwc, int idx)
 
         val = hwc->config;
         if (cpuc->enabled)
-                val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
 
         (void)checking_wrmsrl(hwc->config_base + idx, val);
 }
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 74f4e85a5727..fb329e9f8494 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -680,7 +680,7 @@ static int setup_intel_arch_watchdog(unsigned nmi_hz)
         cpu_nmi_set_wd_enabled();
 
         apic_write(APIC_LVTPC, APIC_DM_NMI);
-        evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+        evntsel |= ARCH_PERFMON_EVENTSEL_ENABLE;
         wrmsr(evntsel_msr, evntsel, 0);
         intel_arch_wd_ops.checkbit = 1ULL << (eax.split.bit_width - 1);
         return 1;
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index dce99abb4496..d5e2a2ebb627 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -120,9 +120,15 @@ fixup_bp_irq_link(unsigned long bp, unsigned long *stack,
 {
 #ifdef CONFIG_FRAME_POINTER
         struct stack_frame *frame = (struct stack_frame *)bp;
+        unsigned long next;
 
-        if (!in_irq_stack(stack, irq_stack, irq_stack_end))
-                return (unsigned long)frame->next_frame;
+        if (!in_irq_stack(stack, irq_stack, irq_stack_end)) {
+                if (!probe_kernel_address(&frame->next_frame, next))
+                        return next;
+                else
+                        WARN_ONCE(1, "Perf: bad frame pointer = %p in "
+                                  "callchain\n", &frame->next_frame);
+        }
 #endif
         return bp;
 }
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 2d8b5035371c..3d1e6f16b7a6 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -27,7 +27,7 @@
 #define GET_CR2_INTO_RCX movq %cr2, %rcx
 #endif
 
-/* we are not able to switch in one step to the final KERNEL ADRESS SPACE
+/* we are not able to switch in one step to the final KERNEL ADDRESS SPACE
  * because we need identity-mapped pages.
  *
  */
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index dca2802c666f..d6cc065f519f 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -344,13 +344,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp,
         }
 
         /*
-         * For kernel-addresses, either the address or symbol name can be
-         * specified.
-         */
-        if (info->name)
-                info->address = (unsigned long)
-                                kallsyms_lookup_name(info->name);
-        /*
          * Check that the low-order bits of the address are appropriate
          * for the alignment implied by len.
          */
@@ -535,8 +528,3 @@ void hw_breakpoint_pmu_read(struct perf_event *bp)
 {
         /* TODO */
 }
-
-void hw_breakpoint_pmu_unthrottle(struct perf_event *bp)
-{
-        /* TODO */
-}
diff --git a/arch/x86/kernel/k8.c b/arch/x86/kernel/k8.c
index cbc4332a77b2..9b895464dd03 100644
--- a/arch/x86/kernel/k8.c
+++ b/arch/x86/kernel/k8.c
@@ -121,3 +121,17 @@ void k8_flush_garts(void)
 }
 EXPORT_SYMBOL_GPL(k8_flush_garts);
 
+static __init int init_k8_nbs(void)
+{
+        int err = 0;
+
+        err = cache_k8_northbridges();
+
+        if (err < 0)
+                printk(KERN_NOTICE "K8 NB: Cannot enumerate AMD northbridges.\n");
+
+        return err;
+}
+
+/* This has to go after the PCI subsystem */
+fs_initcall(init_k8_nbs);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 2bbde6078143..fb99f7edb341 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1309,7 +1309,7 @@ static void calgary_init_bitmap_from_tce_table(struct iommu_table *tbl)
 /*
  * get_tce_space_from_tar():
  * Function for kdump case. Get the tce tables from first kernel
- * by reading the contents of the base adress register of calgary iommu
+ * by reading the contents of the base address register of calgary iommu
  */
 static void __init get_tce_space_from_tar(void)
 {
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 1aa966c565f9..a4ac764a6880 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -38,7 +38,7 @@ int iommu_detected __read_mostly = 0;
  * This variable becomes 1 if iommu=pt is passed on the kernel command line.
  * If this variable is 1, IOMMU implementations do no DMA translation for
  * devices and allow every device to access to whole physical memory. This is
- * useful if a user want to use an IOMMU only for KVM device assignment to
+ * useful if a user wants to use an IOMMU only for KVM device assignment to
  * guests and not for driver dma translation.
  */
 int iommu_pass_through __read_mostly;
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 34de53b46f87..f3af115a573a 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -735,7 +735,7 @@ int __init gart_iommu_init(void)
         unsigned long scratch;
         long i;
 
-        if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0)
+        if (num_k8_northbridges == 0)
                 return 0;
 
 #ifndef CONFIG_AGP_AMD64
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 02d678065d7d..ad9540676fcc 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -607,7 +607,7 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
         if (pm_idle == poll_idle && smp_num_siblings > 1) {
-                printk(KERN_WARNING "WARNING: polling idle and HT enabled,"
+                printk_once(KERN_WARNING "WARNING: polling idle and HT enabled,"
                         " performance may degrade.\n");
         }
 #endif
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 2d96aab82a48..a503b1fd04e5 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -581,7 +581,7 @@ ptrace_modify_breakpoint(struct perf_event *bp, int len, int type,
         struct perf_event_attr attr;
 
         /*
-         * We shoud have at least an inactive breakpoint at this
+         * We should have at least an inactive breakpoint at this
          * slot. It means the user is writing dr7 without having
          * written the address register first
          */
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
index dee1ff7cba58..196552bb412c 100644
--- a/arch/x86/kernel/sys_i386_32.c
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -25,191 +25,6 @@
 #include <asm/syscalls.h>
 
 /*
- * Perform the select(nd, in, out, ex, tv) and mmap() system
- * calls. Linux/i386 didn't use to be able to handle more than
- * 4 system call parameters, so these system calls used a memory
- * block for parameter passing..
- */
-
-struct mmap_arg_struct {
-        unsigned long addr;
-        unsigned long len;
-        unsigned long prot;
-        unsigned long flags;
-        unsigned long fd;
-        unsigned long offset;
-};
-
-asmlinkage int old_mmap(struct mmap_arg_struct __user *arg)
-{
-        struct mmap_arg_struct a;
-        int err = -EFAULT;
-
-        if (copy_from_user(&a, arg, sizeof(a)))
-                goto out;
-
-        err = -EINVAL;
-        if (a.offset & ~PAGE_MASK)
-                goto out;
-
-        err = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags,
-                        a.fd, a.offset >> PAGE_SHIFT);
-out:
-        return err;
-}
-
-
-struct sel_arg_struct {
-        unsigned long n;
-        fd_set __user *inp, *outp, *exp;
-        struct timeval __user *tvp;
-};
-
-asmlinkage int old_select(struct sel_arg_struct __user *arg)
-{
-        struct sel_arg_struct a;
-
-        if (copy_from_user(&a, arg, sizeof(a)))
-                return -EFAULT;
-        /* sys_select() does the appropriate kernel locking */
-        return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-                        int third, void __user *ptr, long fifth)
-{
-        int version, ret;
-
-        version = call >> 16; /* hack for backward compatibility */
-        call &= 0xffff;
-
-        switch (call) {
-        case SEMOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
-        case SEMTIMEDOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-                                        (const struct timespec __user *)fifth);
-
-        case SEMGET:
-                return sys_semget(first, second, third);
-        case SEMCTL: {
-                union semun fourth;
-                if (!ptr)
-                        return -EINVAL;
-                if (get_user(fourth.__pad, (void __user * __user *) ptr))
-                        return -EFAULT;
-                return sys_semctl(first, second, third, fourth);
-        }
-
-        case MSGSND:
-                return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-                                   second, third);
-        case MSGRCV:
-                switch (version) {
-                case 0: {
-                        struct ipc_kludge tmp;
-                        if (!ptr)
-                                return -EINVAL;
-
-                        if (copy_from_user(&tmp,
-                                           (struct ipc_kludge __user *) ptr,
-                                           sizeof(tmp)))
-                                return -EFAULT;
-                        return sys_msgrcv(first, tmp.msgp, second,
-                                           tmp.msgtyp, third);
-                }
-                default:
-                        return sys_msgrcv(first,
-                                           (struct msgbuf __user *) ptr,
-                                           second, fifth, third);
-                }
-        case MSGGET:
-                return sys_msgget((key_t) first, second);
-        case MSGCTL:
-                return sys_msgctl(first, second, (struct msqid_ds __user *) ptr);
-
-        case SHMAT:
-                switch (version) {
-                default: {
-                        ulong raddr;
-                        ret = do_shmat(first, (char __user *) ptr, second, &raddr);
-                        if (ret)
-                                return ret;
-                        return put_user(raddr, (ulong __user *) third);
-                }
-                case 1: /* iBCS2 emulator entry point */
-                        if (!segment_eq(get_fs(), get_ds()))
-                                return -EINVAL;
-                        /* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
-                        return do_shmat(first, (char __user *) ptr, second, (ulong *) third);
-                }
-        case SHMDT:
-                return sys_shmdt((char __user *)ptr);
-        case SHMGET:
-                return sys_shmget(first, second, third);
-        case SHMCTL:
-                return sys_shmctl(first, second,
-                                   (struct shmid_ds __user *) ptr);
-        default:
-                return -ENOSYS;
-        }
-}
-
-/*
- * Old cruft
- */
-asmlinkage int sys_uname(struct old_utsname __user *name)
-{
-        int err;
-        if (!name)
-                return -EFAULT;
-        down_read(&uts_sem);
-        err = copy_to_user(name, utsname(), sizeof(*name));
-        up_read(&uts_sem);
-        return err? -EFAULT:0;
-}
-
-asmlinkage int sys_olduname(struct oldold_utsname __user *name)
-{
-        int error;
-
-        if (!name)
-                return -EFAULT;
-        if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
-                return -EFAULT;
-
-        down_read(&uts_sem);
-
-        error = __copy_to_user(&name->sysname, &utsname()->sysname,
-                               __OLD_UTS_LEN);
-        error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-        error |= __copy_to_user(&name->nodename, &utsname()->nodename,
-                                __OLD_UTS_LEN);
-        error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-        error |= __copy_to_user(&name->release, &utsname()->release,
-                                __OLD_UTS_LEN);
-        error |= __put_user(0, name->release + __OLD_UTS_LEN);
-        error |= __copy_to_user(&name->version, &utsname()->version,
-                                __OLD_UTS_LEN);
-        error |= __put_user(0, name->version + __OLD_UTS_LEN);
-        error |= __copy_to_user(&name->machine, &utsname()->machine,
-                                __OLD_UTS_LEN);
-        error |= __put_user(0, name->machine + __OLD_UTS_LEN);
-
-        up_read(&uts_sem);
-
-        error = error ? -EFAULT : 0;
-
-        return error;
-}
-
-
-/*
  * Do a system call from kernel instead of calling sys_execve so we
  * end up with proper pt_regs.
  */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 8aa2057efd12..ff14a5044ce6 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -209,15 +209,3 @@ bottomup:
 
         return addr;
 }
-
-
-SYSCALL_DEFINE1(uname, struct new_utsname __user *, name)
-{
-        int err;
-        down_read(&uts_sem);
-        err = copy_to_user(name, utsname(), sizeof(*name));
-        up_read(&uts_sem);
-        if (personality(current->personality) == PER_LINUX32)
-                err |= copy_to_user(&name->machine, "i686", 5);
-        return err ? -EFAULT : 0;
-}
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index 15228b5d3eb7..8b3729341216 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -81,7 +81,7 @@ ENTRY(sys_call_table)
         .long sys_settimeofday
         .long sys_getgroups16   /* 80 */
         .long sys_setgroups16
-        .long old_select
+        .long sys_old_select
         .long sys_symlink
         .long sys_lstat
         .long sys_readlink      /* 85 */
@@ -89,7 +89,7 @@ ENTRY(sys_call_table)
         .long sys_swapon
         .long sys_reboot
         .long sys_old_readdir
-        .long old_mmap          /* 90 */
+        .long sys_old_mmap      /* 90 */
         .long sys_munmap
         .long sys_truncate
         .long sys_ftruncate
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 208a857c679f..9faf91ae1841 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -50,7 +50,7 @@ u64 native_sched_clock(void)
          *   unstable. We do this because unlike Time Of Day,
          *   the scheduler clock tolerates small errors and it's
          *   very important for it to be as fast as the platform
-         *   can achive it. )
+         *   can achieve it. )
          */
         if (unlikely(tsc_disabled)) {
                 /* No locking but a rare wrong value is not a big deal: */
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index 2f1ca5614292..5e1ff66ecd73 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -167,7 +167,7 @@ static int vmi_timer_next_event(unsigned long delta,
 {
         /* Unfortunately, set_next_event interface only passes relative
          * expiry, but we want absolute expiry.  It'd be better if were
-         * were passed an aboslute expiry, since a bunch of time may
+         * were passed an absolute expiry, since a bunch of time may
          * have been stolen between the time the delta is computed and
          * when we set the alarm below. */
         cycle_t now = vmi_timer_ops.get_cycle_counter(vmi_counter(VMI_ONESHOT));
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 1d4eb93d333c..cf07c26d9a4a 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -291,8 +291,29 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
          */
         if (kernel_set_to_readonly &&
             within(address, (unsigned long)_text,
-                   (unsigned long)__end_rodata_hpage_align))
-                pgprot_val(forbidden) |= _PAGE_RW;
+                   (unsigned long)__end_rodata_hpage_align)) {
+                unsigned int level;
+
+                /*
+                 * Don't enforce the !RW mapping for the kernel text mapping,
+                 * if the current mapping is already using small page mapping.
+                 * No need to work hard to preserve large page mappings in this
+                 * case.
+                 *
+                 * This also fixes the Linux Xen paravirt guest boot failure
+                 * (because of unexpected read-only mappings for kernel identity
+                 * mappings). In this paravirt guest case, the kernel text
+                 * mapping and the kernel identity mapping share the same
+                 * page-table pages. Thus we can't really use different
+                 * protections for the kernel text and identity mappings. Also,
+                 * these shared mappings are made of small page mappings.
+                 * Thus this don't enforce !RW mapping for small page kernel
+                 * text mapping logic will help Linux Xen parvirt guest boot
+                 * aswell.
+                 */
+                if (lookup_address(address, &level) && (level != PG_LEVEL_4K))
+                        pgprot_val(forbidden) |= _PAGE_RW;
+        }
 #endif
 
         prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 6a58256dce9f..090cbbec7dbd 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -46,17 +46,6 @@
 
 static unsigned long reset_value[NUM_VIRT_COUNTERS];
 
-/* IbsFetchCtl bits/masks */
-#define IBS_FETCH_RAND_EN               (1ULL<<57)
-#define IBS_FETCH_VAL                   (1ULL<<49)
-#define IBS_FETCH_ENABLE                (1ULL<<48)
-#define IBS_FETCH_CNT_MASK              0xFFFF0000ULL
-
-/* IbsOpCtl bits */
-#define IBS_OP_CNT_CTL                  (1ULL<<19)
-#define IBS_OP_VAL                      (1ULL<<18)
-#define IBS_OP_ENABLE                   (1ULL<<17)
-
 #define IBS_FETCH_SIZE                  6
 #define IBS_OP_SIZE                     12
 
@@ -182,7 +171,7 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
                         continue;
                 }
                 rdmsrl(msrs->controls[i].addr, val);
-                if (val & ARCH_PERFMON_EVENTSEL0_ENABLE)
+                if (val & ARCH_PERFMON_EVENTSEL_ENABLE)
                         op_x86_warn_in_use(i);
                 val &= model->reserved;
                 wrmsrl(msrs->controls[i].addr, val);
@@ -290,7 +279,7 @@ op_amd_handle_ibs(struct pt_regs * const regs,
                         oprofile_write_commit(&entry);
 
                         /* reenable the IRQ */
-                        ctl &= ~(IBS_FETCH_VAL | IBS_FETCH_CNT_MASK);
+                        ctl &= ~(IBS_FETCH_VAL | IBS_FETCH_CNT);
                         ctl |= IBS_FETCH_ENABLE;
                         wrmsrl(MSR_AMD64_IBSFETCHCTL, ctl);
                 }
@@ -330,7 +319,7 @@ static inline void op_amd_start_ibs(void)
                 return;
 
         if (ibs_config.fetch_enabled) {
-                val = (ibs_config.max_cnt_fetch >> 4) & 0xFFFF;
+                val = (ibs_config.max_cnt_fetch >> 4) & IBS_FETCH_MAX_CNT;
                 val |= ibs_config.rand_en ? IBS_FETCH_RAND_EN : 0;
                 val |= IBS_FETCH_ENABLE;
                 wrmsrl(MSR_AMD64_IBSFETCHCTL, val);
@@ -352,7 +341,7 @@ static inline void op_amd_start_ibs(void)
                          * avoid underflows.
                          */
                         ibs_op_ctl = min(ibs_op_ctl + IBS_RANDOM_MAXCNT_OFFSET,
-                                         0xFFFFULL);
+                                         IBS_OP_MAX_CNT);
                 }
                 if (ibs_caps & IBS_CAPS_OPCNT && ibs_config.dispatched_ops)
                         ibs_op_ctl |= IBS_OP_CNT_CTL;
@@ -409,7 +398,7 @@ static void op_amd_start(struct op_msrs const * const msrs)
                 if (!reset_value[op_x86_phys_to_virt(i)])
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
-                val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
                 wrmsrl(msrs->controls[i].addr, val);
         }
 
@@ -429,7 +418,7 @@ static void op_amd_stop(struct op_msrs const * const msrs)
                 if (!reset_value[op_x86_phys_to_virt(i)])
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
-                val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
                 wrmsrl(msrs->controls[i].addr, val);
         }
 
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 5d1727ba409e..2bf90fafa7b5 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -88,7 +88,7 @@ static void ppro_setup_ctrs(struct op_x86_model_spec const *model,
                         continue;
                 }
                 rdmsrl(msrs->controls[i].addr, val);
-                if (val & ARCH_PERFMON_EVENTSEL0_ENABLE)
+                if (val & ARCH_PERFMON_EVENTSEL_ENABLE)
                         op_x86_warn_in_use(i);
                 val &= model->reserved;
                 wrmsrl(msrs->controls[i].addr, val);
@@ -166,7 +166,7 @@ static void ppro_start(struct op_msrs const * const msrs)
         for (i = 0; i < num_counters; ++i) {
                 if (reset_value[i]) {
                         rdmsrl(msrs->controls[i].addr, val);
-                        val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+                        val |= ARCH_PERFMON_EVENTSEL_ENABLE;
                         wrmsrl(msrs->controls[i].addr, val);
                 }
         }
@@ -184,7 +184,7 @@ static void ppro_stop(struct op_msrs const * const msrs)
                 if (!reset_value[i])
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
-                val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
+                val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
                 wrmsrl(msrs->controls[i].addr, val);
         }
 }
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 563d20504988..deafb65ef44e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -361,7 +361,7 @@ static void xen_cpu_die(unsigned int cpu)
                 alternatives_smp_switch(0);
 }
 
-static void __cpuinit xen_play_dead(void) /* used only with CPU_HOTPLUG */
+static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */
 {
         play_dead_common();
         HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);