25 files changed, 278 insertions, 311 deletions

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 613700f27a4..637e1ec963c 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -153,6 +153,7 @@
 #define X86_FEATURE_SSE5        (6*32+11) /* SSE-5 */
 #define X86_FEATURE_SKINIT      (6*32+12) /* SKINIT/STGI instructions */
 #define X86_FEATURE_WDT         (6*32+13) /* Watchdog timer */
+#define X86_FEATURE_NODEID_MSR  (6*32+19) /* NodeId MSR */
 
 /*
  * Auxiliary flags: Linux defined - For features scattered in various
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 08c48a81841..eeac829a0f4 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -103,7 +103,8 @@ extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
 extern void send_cleanup_vector(struct irq_cfg *);
 
 struct irq_desc;
-extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *);
+extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *,
+                                      unsigned int *dest_id);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
 extern void setup_ioapic_dest(void);
 
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 4ffe09b2ad7..1cd58cdbc03 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -12,6 +12,7 @@
 #define MSR_FS_BASE             0xc0000100 /* 64bit FS base */
 #define MSR_GS_BASE             0xc0000101 /* 64bit GS base */
 #define MSR_KERNEL_GS_BASE      0xc0000102 /* SwapGS GS shadow */
+#define MSR_TSC_AUX             0xc0000103 /* Auxiliary TSC */
 
 /* EFER bits: */
 #define _EFER_SCE               0  /* SYSCALL/SYSRET */
@@ -123,6 +124,7 @@
 #define FAM10H_MMIO_CONF_BUSRANGE_SHIFT 2
 #define FAM10H_MMIO_CONF_BASE_MASK      0xfffffff
 #define FAM10H_MMIO_CONF_BASE_SHIFT     20
+#define MSR_FAM10H_NODE_ID              0xc001100c
 
 /* K8 MSRs */
 #define MSR_K8_TOP_MEM1                 0xc001001a
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 2d228fc9b4b..c5bc4c2d33f 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -27,6 +27,18 @@ struct msr {
         };
 };
 
+struct msr_info {
+        u32 msr_no;
+        struct msr reg;
+        struct msr *msrs;
+        int err;
+};
+
+struct msr_regs_info {
+        u32 *regs;
+        int err;
+};
+
 static inline unsigned long long native_read_tscp(unsigned int *aux)
 {
         unsigned long low, high;
@@ -240,9 +252,9 @@ do {                                                            \
 #define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val),         \
                                              (u32)((val) >> 32))
 
-#define write_tsc(val1, val2) wrmsr(0x10, (val1), (val2))
+#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
 
-#define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0)
+#define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
 
 struct msr *msrs_alloc(void);
 void msrs_free(struct msr *msrs);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 6f8ec1c37e0..fc801bab1b3 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -181,7 +181,7 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
                                 unsigned int *ecx, unsigned int *edx)
 {
         /* ecx is often an input as well as an output. */
-        asm("cpuid"
+        asm volatile("cpuid"
             : "=a" (*eax),
               "=b" (*ebx),
               "=c" (*ecx),
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index d0c99abc26c..eacbd2b31d2 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -306,10 +306,7 @@ physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                 if (cpumask_test_cpu(cpu, cpu_online_mask))
                         break;
         }
-        if (cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu);
-
-        return BAD_APICID;
+        return per_cpu(x86_cpu_to_apicid, cpu);
 }
 
 struct apic apic_physflat =  {
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 38dcecfa581..cb804c5091b 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -131,10 +131,7 @@ static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                 if (cpumask_test_cpu(cpu, cpu_online_mask))
                         break;
         }
-        if (cpu < nr_cpu_ids)
-                return bigsmp_cpu_to_logical_apicid(cpu);
-
-        return BAD_APICID;
+        return bigsmp_cpu_to_logical_apicid(cpu);
 }
 
 static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 11a5851f1f5..de00c4619a5 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2276,26 +2276,28 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq
 
 /*
  * Either sets desc->affinity to a valid value, and returns
- * ->cpu_mask_to_apicid of that, or returns BAD_APICID and
+ * ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
  * leaves desc->affinity untouched.
  */
 unsigned int
-set_desc_affinity(struct irq_desc *desc, const struct cpumask *mask)
+set_desc_affinity(struct irq_desc *desc, const struct cpumask *mask,
+                  unsigned int *dest_id)
 {
         struct irq_cfg *cfg;
         unsigned int irq;
 
         if (!cpumask_intersects(mask, cpu_online_mask))
-                return BAD_APICID;
+                return -1;
 
         irq = desc->irq;
         cfg = desc->chip_data;
         if (assign_irq_vector(irq, cfg, mask))
-                return BAD_APICID;
+                return -1;
 
         cpumask_copy(desc->affinity, mask);
 
-        return apic->cpu_mask_to_apicid_and(desc->affinity, cfg->domain);
+        *dest_id = apic->cpu_mask_to_apicid_and(desc->affinity, cfg->domain);
+        return 0;
 }
 
 static int
@@ -2311,12 +2313,11 @@ set_ioapic_affinity_irq_desc(struct irq_desc *desc, const struct cpumask *mask)
         cfg = desc->chip_data;
 
         spin_lock_irqsave(&ioapic_lock, flags);
-        dest = set_desc_affinity(desc, mask);
-        if (dest != BAD_APICID) {
+        ret = set_desc_affinity(desc, mask, &dest);
+        if (!ret) {
                 /* Only the high 8 bits are valid. */
                 dest = SET_APIC_LOGICAL_ID(dest);
                 __target_IO_APIC_irq(irq, dest, cfg);
-                ret = 0;
         }
         spin_unlock_irqrestore(&ioapic_lock, flags);
 
@@ -3351,8 +3352,7 @@ static int set_msi_irq_affinity(unsigned int irq, const struct cpumask *mask)
         struct msi_msg msg;
         unsigned int dest;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         cfg = desc->chip_data;
@@ -3384,8 +3384,7 @@ ir_set_msi_irq_affinity(unsigned int irq, const struct cpumask *mask)
         if (get_irte(irq, &irte))
                 return -1;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         irte.vector = cfg->vector;
@@ -3567,8 +3566,7 @@ static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
         struct msi_msg msg;
         unsigned int dest;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         cfg = desc->chip_data;
@@ -3623,8 +3621,7 @@ static int hpet_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
         struct msi_msg msg;
         unsigned int dest;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         cfg = desc->chip_data;
@@ -3730,8 +3727,7 @@ static int set_ht_irq_affinity(unsigned int irq, const struct cpumask *mask)
         struct irq_cfg *cfg;
         unsigned int dest;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         cfg = desc->chip_data;
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index a5371ec3677..cf69c59f491 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -148,10 +148,7 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                         break;
         }
 
-        if (cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_logical_apicid, cpu);
-
-        return BAD_APICID;
+        return per_cpu(x86_cpu_to_logical_apicid, cpu);
 }
 
 static unsigned int x2apic_cluster_phys_get_apic_id(unsigned long x)
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index a8989aadc99..8972f38c5ce 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -146,10 +146,7 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                         break;
         }
 
-        if (cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu);
-
-        return BAD_APICID;
+        return per_cpu(x86_cpu_to_apicid, cpu);
 }
 
 static unsigned int x2apic_phys_get_apic_id(unsigned long x)
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index b684bb303cb..d56b0efb205 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -225,10 +225,7 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                 if (cpumask_test_cpu(cpu, cpu_online_mask))
                         break;
         }
-        if (cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu);
-
-        return BAD_APICID;
+        return per_cpu(x86_cpu_to_apicid, cpu);
 }
 
 static unsigned int x2apic_get_apic_id(unsigned long x)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 8dc3ea145c9..e485825130d 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/intel.c b/arch/x86/kernel/cpu/intel.c
index 9c31e8b09d2..879666f4d87 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/cpuid.c b/arch/x86/kernel/cpuid.c
index 7ef24a79699..cb27fd6136c 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -187,7 +187,8 @@ static int __init cpuid_init(void)
         int i, err = 0;
         i = 0;
 
-        if (register_chrdev(CPUID_MAJOR, "cpu/cpuid", &cpuid_fops)) {
+        if (__register_chrdev(CPUID_MAJOR, 0, NR_CPUS,
+                              "cpu/cpuid", &cpuid_fops)) {
                 printk(KERN_ERR "cpuid: unable to get major %d for cpuid\n",
                        CPUID_MAJOR);
                 err = -EBUSY;
@@ -216,7 +217,7 @@ out_class:
         }
         class_destroy(cpuid_class);
 out_chrdev:
-        unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
+        __unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid");
 out:
         return err;
 }
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index f50447d961c..05ed7ab2ca4 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -724,7 +724,7 @@ core_initcall(e820_mark_nvs_memory);
 /*
  * Early reserved memory areas.
  */
-#define MAX_EARLY_RES 20
+#define MAX_EARLY_RES 32
 
 struct early_res {
         u64 start, end;
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 572b07eee3f..4bd93c9b2b2 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -246,7 +246,7 @@ static int __init msr_init(void)
         int i, err = 0;
         i = 0;
 
-        if (register_chrdev(MSR_MAJOR, "cpu/msr", &msr_fops)) {
+        if (__register_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr", &msr_fops)) {
                 printk(KERN_ERR "msr: unable to get major %d for msr\n",
                        MSR_MAJOR);
                 err = -EBUSY;
@@ -274,7 +274,7 @@ out_class:
                 msr_device_destroy(i);
         class_destroy(msr_class);
 out_chrdev:
-        unregister_chrdev(MSR_MAJOR, "cpu/msr");
+        __unregister_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr");
 out:
         return err;
 }
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index cd982f48e23..597683aa5ba 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -763,6 +763,7 @@ void mark_tsc_unstable(char *reason)
 {
         if (!tsc_unstable) {
                 tsc_unstable = 1;
+                sched_clock_stable = 0;
                 printk(KERN_INFO "Marking TSC unstable due to %s\n", reason);
                 /* Change only the rating, when not registered */
                 if (clocksource_tsc.mult)
diff --git a/arch/x86/kernel/uv_irq.c b/arch/x86/kernel/uv_irq.c
index 61d805df4c9..ece73d8e324 100644
--- a/arch/x86/kernel/uv_irq.c
+++ b/arch/x86/kernel/uv_irq.c
@@ -215,8 +215,7 @@ static int uv_set_irq_affinity(unsigned int irq, const struct cpumask *mask)
         unsigned long mmr_offset;
         unsigned mmr_pnode;
 
-        dest = set_desc_affinity(desc, mask);
-        if (dest == BAD_APICID)
+        if (set_desc_affinity(desc, mask, &dest))
                 return -1;
 
         mmr_value = 0;
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 45b20e486c2..cffd754f303 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -14,7 +14,7 @@ $(obj)/inat.o: $(obj)/inat-tables.c
 
 clean-files := inat-tables.c
 
-obj-$(CONFIG_SMP) := msr.o
+obj-$(CONFIG_SMP) += msr-smp.o
 
 lib-y := delay.o
 lib-y += thunk_$(BITS).o
@@ -22,7 +22,7 @@ lib-y += usercopy_$(BITS).o getuser.o putuser.o
 lib-y += memcpy_$(BITS).o
 lib-$(CONFIG_KPROBES) += insn.o inat.o
 
-obj-y += msr-reg.o msr-reg-export.o
+obj-y += msr.o msr-reg.o msr-reg-export.o
 
 ifeq ($(CONFIG_X86_32),y)
         obj-y += atomic64_32.o
diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
new file mode 100644
index 00000000000..a6b1b86d225
--- /dev/null
+++ b/arch/x86/lib/msr-smp.c
@@ -0,0 +1,204 @@
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/smp.h>
+#include <asm/msr.h>
+
+static void __rdmsr_on_cpu(void *info)
+{
+        struct msr_info *rv = info;
+        struct msr *reg;
+        int this_cpu = raw_smp_processor_id();
+
+        if (rv->msrs)
+                reg = per_cpu_ptr(rv->msrs, this_cpu);
+        else
+                reg = &rv->reg;
+
+        rdmsr(rv->msr_no, reg->l, reg->h);
+}
+
+static void __wrmsr_on_cpu(void *info)
+{
+        struct msr_info *rv = info;
+        struct msr *reg;
+        int this_cpu = raw_smp_processor_id();
+
+        if (rv->msrs)
+                reg = per_cpu_ptr(rv->msrs, this_cpu);
+        else
+                reg = &rv->reg;
+
+        wrmsr(rv->msr_no, reg->l, reg->h);
+}
+
+int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+        int err;
+        struct msr_info rv;
+
+        memset(&rv, 0, sizeof(rv));
+
+        rv.msr_no = msr_no;
+        err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
+        *l = rv.reg.l;
+        *h = rv.reg.h;
+
+        return err;
+}
+EXPORT_SYMBOL(rdmsr_on_cpu);
+
+int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+        int err;
+        struct msr_info rv;
+
+        memset(&rv, 0, sizeof(rv));
+
+        rv.msr_no = msr_no;
+        rv.reg.l = l;
+        rv.reg.h = h;
+        err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
+
+        return err;
+}
+EXPORT_SYMBOL(wrmsr_on_cpu);
+
+static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
+                            struct msr *msrs,
+                            void (*msr_func) (void *info))
+{
+        struct msr_info rv;
+        int this_cpu;
+
+        memset(&rv, 0, sizeof(rv));
+
+        rv.msrs   = msrs;
+        rv.msr_no = msr_no;
+
+        this_cpu = get_cpu();
+
+        if (cpumask_test_cpu(this_cpu, mask))
+                msr_func(&rv);
+
+        smp_call_function_many(mask, msr_func, &rv, 1);
+        put_cpu();
+}
+
+/* rdmsr on a bunch of CPUs
+ *
+ * @mask:       which CPUs
+ * @msr_no:     which MSR
+ * @msrs:       array of MSR values
+ *
+ */
+void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
+{
+        __rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu);
+}
+EXPORT_SYMBOL(rdmsr_on_cpus);
+
+/*
+ * wrmsr on a bunch of CPUs
+ *
+ * @mask:       which CPUs
+ * @msr_no:     which MSR
+ * @msrs:       array of MSR values
+ *
+ */
+void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
+{
+        __rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu);
+}
+EXPORT_SYMBOL(wrmsr_on_cpus);
+
+/* These "safe" variants are slower and should be used when the target MSR
+   may not actually exist. */
+static void __rdmsr_safe_on_cpu(void *info)
+{
+        struct msr_info *rv = info;
+
+        rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
+}
+
+static void __wrmsr_safe_on_cpu(void *info)
+{
+        struct msr_info *rv = info;
+
+        rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
+}
+
+int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+        int err;
+        struct msr_info rv;
+
+        memset(&rv, 0, sizeof(rv));
+
+        rv.msr_no = msr_no;
+        err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
+        *l = rv.reg.l;
+        *h = rv.reg.h;
+
+        return err ? err : rv.err;
+}
+EXPORT_SYMBOL(rdmsr_safe_on_cpu);
+
+int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+        int err;
+        struct msr_info rv;
+
+        memset(&rv, 0, sizeof(rv));
+
+        rv.msr_no = msr_no;
+        rv.reg.l = l;
+        rv.reg.h = h;
+        err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
+
+        return err ? err : rv.err;
+}
+EXPORT_SYMBOL(wrmsr_safe_on_cpu);
+
+/*
+ * These variants are significantly slower, but allows control over
+ * the entire 32-bit GPR set.
+ */
+static void __rdmsr_safe_regs_on_cpu(void *info)
+{
+        struct msr_regs_info *rv = info;
+
+        rv->err = rdmsr_safe_regs(rv->regs);
+}
+
+static void __wrmsr_safe_regs_on_cpu(void *info)
+{
+        struct msr_regs_info *rv = info;
+
+        rv->err = wrmsr_safe_regs(rv->regs);
+}
+
+int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
+{
+        int err;
+        struct msr_regs_info rv;
+
+        rv.regs   = regs;
+        rv.err    = -EIO;
+        err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1);
+
+        return err ? err : rv.err;
+}
+EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu);
+
+int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
+{
+        int err;
+        struct msr_regs_info rv;
+
+        rv.regs = regs;
+        rv.err  = -EIO;
+        err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1);
+
+        return err ? err : rv.err;
+}
+EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu);
diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c
index 87283417793..8f8eebdca7d 100644
--- a/arch/x86/lib/msr.c
+++ b/arch/x86/lib/msr.c
@@ -1,123 +1,7 @@
 #include <linux/module.h>
 #include <linux/preempt.h>
-#include <linux/smp.h>
 #include <asm/msr.h>
 
-struct msr_info {
-        u32 msr_no;
-        struct msr reg;
-        struct msr *msrs;
-        int err;
-};
-
-static void __rdmsr_on_cpu(void *info)
-{
-        struct msr_info *rv = info;
-        struct msr *reg;
-        int this_cpu = raw_smp_processor_id();
-
-        if (rv->msrs)
-                reg = per_cpu_ptr(rv->msrs, this_cpu);
-        else
-                reg = &rv->reg;
-
-        rdmsr(rv->msr_no, reg->l, reg->h);
-}
-
-static void __wrmsr_on_cpu(void *info)
-{
-        struct msr_info *rv = info;
-        struct msr *reg;
-        int this_cpu = raw_smp_processor_id();
-
-        if (rv->msrs)
-                reg = per_cpu_ptr(rv->msrs, this_cpu);
-        else
-                reg = &rv->reg;
-
-        wrmsr(rv->msr_no, reg->l, reg->h);
-}
-
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-        int err;
-        struct msr_info rv;
-
-        memset(&rv, 0, sizeof(rv));
-
-        rv.msr_no = msr_no;
-        err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
-        *l = rv.reg.l;
-        *h = rv.reg.h;
-
-        return err;
-}
-EXPORT_SYMBOL(rdmsr_on_cpu);
-
-int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
-        int err;
-        struct msr_info rv;
-
-        memset(&rv, 0, sizeof(rv));
-
-        rv.msr_no = msr_no;
-        rv.reg.l = l;
-        rv.reg.h = h;
-        err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
-
-        return err;
-}
-EXPORT_SYMBOL(wrmsr_on_cpu);
-
-static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
-                            struct msr *msrs,
-                            void (*msr_func) (void *info))
-{
-        struct msr_info rv;
-        int this_cpu;
-
-        memset(&rv, 0, sizeof(rv));
-
-        rv.msrs   = msrs;
-        rv.msr_no = msr_no;
-
-        this_cpu = get_cpu();
-
-        if (cpumask_test_cpu(this_cpu, mask))
-                msr_func(&rv);
-
-        smp_call_function_many(mask, msr_func, &rv, 1);
-        put_cpu();
-}
-
-/* rdmsr on a bunch of CPUs
- *
- * @mask:       which CPUs
- * @msr_no:     which MSR
- * @msrs:       array of MSR values
- *
- */
-void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
-{
-        __rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu);
-}
-EXPORT_SYMBOL(rdmsr_on_cpus);
-
-/*
- * wrmsr on a bunch of CPUs
- *
- * @mask:       which CPUs
- * @msr_no:     which MSR
- * @msrs:       array of MSR values
- *
- */
-void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
-{
-        __rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu);
-}
-EXPORT_SYMBOL(wrmsr_on_cpus);
-
 struct msr *msrs_alloc(void)
 {
         struct msr *msrs = NULL;
@@ -137,100 +21,3 @@ void msrs_free(struct msr *msrs)
         free_percpu(msrs);
 }
 EXPORT_SYMBOL(msrs_free);
-
-/* These "safe" variants are slower and should be used when the target MSR
-   may not actually exist. */
-static void __rdmsr_safe_on_cpu(void *info)
-{
-        struct msr_info *rv = info;
-
-        rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
-}
-
-static void __wrmsr_safe_on_cpu(void *info)
-{
-        struct msr_info *rv = info;
-
-        rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
-}
-
-int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
-        int err;
-        struct msr_info rv;
-
-        memset(&rv, 0, sizeof(rv));
-
-        rv.msr_no = msr_no;
-        err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
-        *l = rv.reg.l;
-        *h = rv.reg.h;
-
-        return err ? err : rv.err;
-}
-EXPORT_SYMBOL(rdmsr_safe_on_cpu);
-
-int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
-        int err;
-        struct msr_info rv;
-
-        memset(&rv, 0, sizeof(rv));
-
-        rv.msr_no = msr_no;
-        rv.reg.l = l;
-        rv.reg.h = h;
-        err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
-
-        return err ? err : rv.err;
-}
-EXPORT_SYMBOL(wrmsr_safe_on_cpu);
-
-/*
- * These variants are significantly slower, but allows control over
- * the entire 32-bit GPR set.
- */
-struct msr_regs_info {
-        u32 *regs;
-        int err;
-};
-
-static void __rdmsr_safe_regs_on_cpu(void *info)
-{
-        struct msr_regs_info *rv = info;
-
-        rv->err = rdmsr_safe_regs(rv->regs);
-}
-
-static void __wrmsr_safe_regs_on_cpu(void *info)
-{
-        struct msr_regs_info *rv = info;
-
-        rv->err = wrmsr_safe_regs(rv->regs);
-}
-
-int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
-{
-        int err;
-        struct msr_regs_info rv;
-
-        rv.regs   = regs;
-        rv.err    = -EIO;
-        err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1);
-
-        return err ? err : rv.err;
-}
-EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu);
-
-int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
-{
-        int err;
-        struct msr_regs_info rv;
-
-        rv.regs = regs;
-        rv.err  = -EIO;
-        err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1);
-
-        return err ? err : rv.err;
-}
-EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu);
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 6f8aa33031c..9324f13492d 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -267,6 +267,8 @@ int __init get_memcfg_from_srat(void)
                 e820_register_active_regions(chunk->nid, chunk->start_pfn,
                                              min(chunk->end_pfn, max_pfn));
         }
+        /* for out of order entries in SRAT */
+        sort_node_map();
 
         for_each_online_node(nid) {
                 unsigned long start = node_start_pfn[nid];
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index d8907548966..a27124185fc 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -317,7 +317,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
                 unsigned long s = nodes[i].start >> PAGE_SHIFT;
                 unsigned long e = nodes[i].end >> PAGE_SHIFT;
                 pxmram += e - s;
-                pxmram -= absent_pages_in_range(s, e);
+                pxmram -= __absent_pages_in_range(i, s, e);
                 if ((long)pxmram < 0)
                         pxmram = 0;
         }
@@ -373,6 +373,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
         for_each_node_mask(i, nodes_parsed)
                 e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
                                                 nodes[i].end >> PAGE_SHIFT);
+        /* for out of order entries in SRAT */
+        sort_node_map();
         if (!nodes_cover_memory(nodes)) {
                 bad_srat();
                 return -1;
diff --git a/arch/x86/tools/chkobjdump.awk b/arch/x86/tools/chkobjdump.awk
index 0d13cd9fdcf..5bbb5a33f22 100644
--- a/arch/x86/tools/chkobjdump.awk
+++ b/arch/x86/tools/chkobjdump.awk
@@ -9,7 +9,7 @@ BEGIN {
 }
 
 /^GNU/ {
-        split($4, ver, ".");
+        split($3, ver, ".");
         if (ver[1] > od_ver ||
             (ver[1] == od_ver && ver[2] >= od_sver)) {
                 exit 1;
diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index 7a6850683c3..eaf11f52fc0 100644
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -6,8 +6,6 @@
 
 # Awk implementation sanity check
 function check_awk_implement() {
-        if (!match("abc", "[[:lower:]]+"))
-                return "Your awk doesn't support charactor-class."
         if (sprintf("%x", 0) != "0")
                 return "Your awk has a printf-format problem."
         return ""
@@ -44,12 +42,12 @@ BEGIN {
         delete gtable
         delete atable
 
-        opnd_expr = "^[[:alpha:]/]"
+        opnd_expr = "^[A-Za-z/]"
         ext_expr = "^\\("
         sep_expr = "^\\|$"
-        group_expr = "^Grp[[:alnum:]]+"
+        group_expr = "^Grp[0-9A-Za-z]+"
 
-        imm_expr = "^[IJAO][[:lower:]]"
+        imm_expr = "^[IJAO][a-z]"
         imm_flag["Ib"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
         imm_flag["Jb"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
         imm_flag["Iw"] = "INAT_MAKE_IMM(INAT_IMM_WORD)"
@@ -62,7 +60,7 @@ BEGIN {
         imm_flag["Ob"] = "INAT_MOFFSET"
         imm_flag["Ov"] = "INAT_MOFFSET"
 
-        modrm_expr = "^([CDEGMNPQRSUVW/][[:lower:]]+|NTA|T[012])"
+        modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
         force64_expr = "\\([df]64\\)"
         rex_expr = "^REX(\\.[XRWB]+)*"
         fpu_expr = "^ESC" # TODO