7 files changed, 44 insertions, 59 deletions

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 8dc3ea145c97..e485825130d2 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -254,59 +254,36 @@ static int __cpuinit nearby_node(int apicid)
 
 /*
  * Fixup core topology information for AMD multi-node processors.
- * Assumption 1: Number of cores in each internal node is the same.
- * Assumption 2: Mixed systems with both single-node and dual-node
- *               processors are not supported.
+ * Assumption: Number of cores in each internal node is the same.
  */
 #ifdef CONFIG_X86_HT
 static void __cpuinit amd_fixup_dcm(struct cpuinfo_x86 *c)
 {
-#ifdef CONFIG_PCI
-        u32 t, cpn;
-        u8 n, n_id;
+        unsigned long long value;
+        u32 nodes, cores_per_node;
         int cpu = smp_processor_id();
 
+        if (!cpu_has(c, X86_FEATURE_NODEID_MSR))
+                return;
+
         /* fixup topology information only once for a core */
         if (cpu_has(c, X86_FEATURE_AMD_DCM))
                 return;
 
-        /* check for multi-node processor on boot cpu */
-        t = read_pci_config(0, 24, 3, 0xe8);
-        if (!(t & (1 << 29)))
+        rdmsrl(MSR_FAM10H_NODE_ID, value);
+
+        nodes = ((value >> 3) & 7) + 1;
+        if (nodes == 1)
                 return;
 
         set_cpu_cap(c, X86_FEATURE_AMD_DCM);
+        cores_per_node = c->x86_max_cores / nodes;
 
-        /* cores per node: each internal node has half the number of cores */
-        cpn = c->x86_max_cores >> 1;
+        /* store NodeID, use llc_shared_map to store sibling info */
+        per_cpu(cpu_llc_id, cpu) = value & 7;
 
-        /* even-numbered NB_id of this dual-node processor */
-        n = c->phys_proc_id << 1;
-
-        /*
-         * determine internal node id and assign cores fifty-fifty to
-         * each node of the dual-node processor
-         */
-        t = read_pci_config(0, 24 + n, 3, 0xe8);
-        n = (t>>30) & 0x3;
-        if (n == 0) {
-                if (c->cpu_core_id < cpn)
-                        n_id = 0;
-                else
-                        n_id = 1;
-        } else {
-                if (c->cpu_core_id < cpn)
-                        n_id = 1;
-                else
-                        n_id = 0;
-        }
-
-        /* compute entire NodeID, use llc_shared_map to store sibling info */
-        per_cpu(cpu_llc_id, cpu) = (c->phys_proc_id << 1) + n_id;
-
-        /* fixup core id to be in range from 0 to cpn */
-        c->cpu_core_id = c->cpu_core_id % cpn;
-#endif
+        /* fixup core id to be in range from 0 to (cores_per_node - 1) */
+        c->cpu_core_id = c->cpu_core_id % cores_per_node;
 }
 #endif
 
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index f28decf8dde3..1b1920fa7c80 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -190,9 +190,11 @@ static void do_drv_write(void *_cmd)
 
 static void drv_read(struct drv_cmd *cmd)
 {
+        int err;
         cmd->val = 0;
 
-        smp_call_function_single(cpumask_any(cmd->mask), do_drv_read, cmd, 1);
+        err = smp_call_function_any(cmd->mask, do_drv_read, cmd, 1);
+        WARN_ON_ONCE(err);      /* smp_call_function_any() was buggy? */
 }
 
 static void drv_write(struct drv_cmd *cmd)
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index a9df9441a9a2..f125e5c551c0 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1136,7 +1136,7 @@ static int powernowk8_target(struct cpufreq_policy *pol,
         if (!alloc_cpumask_var(&oldmask, GFP_KERNEL))
                 return -ENOMEM;
 
-        cpumask_copy(oldmask, tsk_cpumask(current));
+        cpumask_copy(oldmask, tsk_cpus_allowed(current));
         set_cpus_allowed_ptr(current, cpumask_of(pol->cpu));
 
         if (smp_processor_id() != pol->cpu) {
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 9c31e8b09d2c..879666f4d871 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -70,7 +70,6 @@ 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);
-                set_cpu_cap(c, X86_FEATURE_TSC_RELIABLE);
                 sched_clock_stable = 1;
         }
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 472763d92098..73734baa50f2 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -74,7 +74,7 @@ static void raise_exception(struct mce *m, struct pt_regs *pregs)
         m->finished = 0;
 }
 
-static cpumask_t mce_inject_cpumask;
+static cpumask_var_t mce_inject_cpumask;
 
 static int mce_raise_notify(struct notifier_block *self,
                             unsigned long val, void *data)
@@ -82,9 +82,9 @@ static int mce_raise_notify(struct notifier_block *self,
         struct die_args *args = (struct die_args *)data;
         int cpu = smp_processor_id();
         struct mce *m = &__get_cpu_var(injectm);
-        if (val != DIE_NMI_IPI || !cpu_isset(cpu, mce_inject_cpumask))
+        if (val != DIE_NMI_IPI || !cpumask_test_cpu(cpu, mce_inject_cpumask))
                 return NOTIFY_DONE;
-        cpu_clear(cpu, mce_inject_cpumask);
+        cpumask_clear_cpu(cpu, mce_inject_cpumask);
         if (m->inject_flags & MCJ_EXCEPTION)
                 raise_exception(m, args->regs);
         else if (m->status)
@@ -148,22 +148,22 @@ static void raise_mce(struct mce *m)
                 unsigned long start;
                 int cpu;
                 get_online_cpus();
-                mce_inject_cpumask = cpu_online_map;
-                cpu_clear(get_cpu(), mce_inject_cpumask);
+                cpumask_copy(mce_inject_cpumask, cpu_online_mask);
+                cpumask_clear_cpu(get_cpu(), mce_inject_cpumask);
                 for_each_online_cpu(cpu) {
                         struct mce *mcpu = &per_cpu(injectm, cpu);
                         if (!mcpu->finished ||
                             MCJ_CTX(mcpu->inject_flags) != MCJ_CTX_RANDOM)
-                                cpu_clear(cpu, mce_inject_cpumask);
+                                cpumask_clear_cpu(cpu, mce_inject_cpumask);
                 }
-                if (!cpus_empty(mce_inject_cpumask))
-                        apic->send_IPI_mask(&mce_inject_cpumask, NMI_VECTOR);
+                if (!cpumask_empty(mce_inject_cpumask))
+                        apic->send_IPI_mask(mce_inject_cpumask, NMI_VECTOR);
                 start = jiffies;
-                while (!cpus_empty(mce_inject_cpumask)) {
+                while (!cpumask_empty(mce_inject_cpumask)) {
                         if (!time_before(jiffies, start + 2*HZ)) {
                                 printk(KERN_ERR
                                 "Timeout waiting for mce inject NMI %lx\n",
-                                        *cpus_addr(mce_inject_cpumask));
+                                        *cpumask_bits(mce_inject_cpumask));
                                 break;
                         }
                         cpu_relax();
@@ -210,6 +210,8 @@ static ssize_t mce_write(struct file *filp, const char __user *ubuf,
 
 static int inject_init(void)
 {
+        if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL))
+                return -ENOMEM;
         printk(KERN_INFO "Machine check injector initialized\n");
         mce_chrdev_ops.write = mce_write;
         register_die_notifier(&mce_raise_nb);
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 3c1b12d461d1..e006e56f699c 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -4,6 +4,7 @@
 #include <linux/proc_fs.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/init.h>
 
 #define LINE_SIZE 80
@@ -133,8 +134,7 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
                 return -EINVAL;
 
         base = simple_strtoull(line + 5, &ptr, 0);
-        while (isspace(*ptr))
-                ptr++;
+        ptr = skip_spaces(ptr);
 
         if (strncmp(ptr, "size=", 5))
                 return -EINVAL;
@@ -142,14 +142,11 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
         size = simple_strtoull(ptr + 5, &ptr, 0);
         if ((base & 0xfff) || (size & 0xfff))
                 return -EINVAL;
-        while (isspace(*ptr))
-                ptr++;
+        ptr = skip_spaces(ptr);
 
         if (strncmp(ptr, "type=", 5))
                 return -EINVAL;
-        ptr += 5;
-        while (isspace(*ptr))
-                ptr++;
+        ptr = skip_spaces(ptr + 5);
 
         for (i = 0; i < MTRR_NUM_TYPES; ++i) {
                 if (strcmp(ptr, mtrr_strings[i]))
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 45506d5dd8df..8c1c07073ccc 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1343,6 +1343,13 @@ intel_pmu_enable_fixed(struct hw_perf_event *hwc, int __idx)
                 bits |= 0x2;
         if (hwc->config & ARCH_PERFMON_EVENTSEL_OS)
                 bits |= 0x1;
+
+        /*
+         * ANY bit is supported in v3 and up
+         */
+        if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY)
+                bits |= 0x4;
+
         bits <<= (idx * 4);
         mask = 0xfULL << (idx * 4);
 
@@ -2336,6 +2343,7 @@ static const struct stacktrace_ops backtrace_ops = {
         .warning_symbol         = backtrace_warning_symbol,
         .stack                  = backtrace_stack,
         .address                = backtrace_address,
+        .walk_stack             = print_context_stack_bp,
 };
 
 #include "../dumpstack.h"
@@ -2346,7 +2354,7 @@ perf_callchain_kernel(struct pt_regs *regs, struct perf_callchain_entry *entry)
         callchain_store(entry, PERF_CONTEXT_KERNEL);
         callchain_store(entry, regs->ip);
 
-        dump_trace(NULL, regs, NULL, 0, &backtrace_ops, entry);
+        dump_trace(NULL, regs, NULL, regs->bp, &backtrace_ops, entry);
 }
 
 /*