17 files changed, 264 insertions, 261 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 91cff8dc9e1a..06da59f6f837 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_MICROCODE)         += microcode.o
 obj-$(CONFIG_APM)               += apm.o
 obj-$(CONFIG_X86_SMP)           += smp.o smpboot.o tsc_sync.o
+obj-$(CONFIG_SMP)               += smpcommon.o
 obj-$(CONFIG_X86_TRAMPOLINE)    += trampoline.o
 obj-$(CONFIG_X86_MPPARSE)       += mpparse.o
 obj-$(CONFIG_X86_LOCAL_APIC)    += apic.o nmi.o
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index 837b04166a47..ca3e1d341889 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -341,15 +341,17 @@ static int powernow_acpi_init(void)
         pc.val = (unsigned long) acpi_processor_perf->states[0].control;
         for (i = 0; i < number_scales; i++) {
                 u8 fid, vid;
-                unsigned int speed;
+                struct acpi_processor_px *state =
+                        &acpi_processor_perf->states[i];
+                unsigned int speed, speed_mhz;
 
-                pc.val = (unsigned long) acpi_processor_perf->states[i].control;
+                pc.val = (unsigned long) state->control;
                 dprintk ("acpi:  P%d: %d MHz %d mW %d uS control %08x SGTC %d\n",
                          i,
-                         (u32) acpi_processor_perf->states[i].core_frequency,
-                         (u32) acpi_processor_perf->states[i].power,
-                         (u32) acpi_processor_perf->states[i].transition_latency,
-                         (u32) acpi_processor_perf->states[i].control,
+                         (u32) state->core_frequency,
+                         (u32) state->power,
+                         (u32) state->transition_latency,
+                         (u32) state->control,
                          pc.bits.sgtc);
 
                 vid = pc.bits.vid;
@@ -360,6 +362,18 @@ static int powernow_acpi_init(void)
                 powernow_table[i].index |= (vid << 8); /* upper 8 bits */
 
                 speed = powernow_table[i].frequency;
+                speed_mhz = speed / 1000;
+
+                /* processor_perflib will multiply the MHz value by 1000 to
+                 * get a KHz value (e.g. 1266000). However, powernow-k7 works
+                 * with true KHz values (e.g. 1266768). To ensure that all
+                 * powernow frequencies are available, we must ensure that
+                 * ACPI doesn't restrict them, so we round up the MHz value
+                 * to ensure that perflib's computed KHz value is greater than
+                 * or equal to powernow's KHz value.
+                 */
+                if (speed % 1000 > 0)
+                        speed_mhz++;
 
                 if ((fid_codes[fid] % 10)==5) {
                         if (have_a0 == 1)
@@ -368,10 +382,16 @@ static int powernow_acpi_init(void)
 
                 dprintk ("   FID: 0x%x (%d.%dx [%dMHz])  "
                          "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10,
-                         fid_codes[fid] % 10, speed/1000, vid,
+                         fid_codes[fid] % 10, speed_mhz, vid,
                          mobile_vid_table[vid]/1000,
                          mobile_vid_table[vid]%1000);
 
+                if (state->core_frequency != speed_mhz) {
+                        state->core_frequency = speed_mhz;
+                        dprintk("   Corrected ACPI frequency to %d\n",
+                                speed_mhz);
+                }
+
                 if (latency < pc.bits.sgtc)
                         latency = pc.bits.sgtc;
 
@@ -602,7 +622,7 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy)
                         result = powernow_acpi_init();
                         if (result) {
                                 printk (KERN_INFO PFX "ACPI and legacy methods failed\n");
-                                printk (KERN_INFO PFX "See http://www.codemonkey.org.uk/projects/cpufreq/powernow-k7.shtml\n");
+                                printk (KERN_INFO PFX "See http://www.codemonkey.org.uk/projects/cpufreq/powernow-k7.html\n");
                         }
                 } else {
                         /* SGTC use the bus clock as timer */
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 7cf3d207b6b3..4ade55c5f333 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -521,7 +521,7 @@ static int check_supported_cpu(unsigned int cpu)
 
         if ((eax & CPUID_XFAM) == CPUID_XFAM_K8) {
                 if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) ||
-                    ((eax & CPUID_XMOD) > CPUID_XMOD_REV_G)) {
+                    ((eax & CPUID_XMOD) > CPUID_XMOD_REV_MASK)) {
                         printk(KERN_INFO PFX "Processor cpuid %x not supported\n", eax);
                         goto out;
                 }
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
index 95be5013c984..b06c812208ca 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
@@ -46,8 +46,8 @@ struct powernow_k8_data {
 #define CPUID_XFAM                      0x0ff00000      /* extended family */
 #define CPUID_XFAM_K8                   0
 #define CPUID_XMOD                      0x000f0000      /* extended model */
-#define CPUID_XMOD_REV_G                0x00060000
-#define CPUID_XFAM_10H                  0x00100000      /* family 0x10 */
+#define CPUID_XMOD_REV_MASK             0x00080000
+#define CPUID_XFAM_10H                  0x00100000      /* family 0x10 */
 #define CPUID_USE_XFAM_XMOD             0x00000f00
 #define CPUID_GET_MAX_CAPABILITIES      0x80000000
 #define CPUID_FREQ_VOLT_CAPABILITIES    0x80000007
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 706bda72dc60..c9a7c9835aba 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -467,7 +467,7 @@ void flush_tlb_all(void)
  * it goes straight through and wastes no time serializing
  * anything. Worst case is that we lose a reschedule ...
  */
-void native_smp_send_reschedule(int cpu)
+static void native_smp_send_reschedule(int cpu)
 {
         WARN_ON(cpu_is_offline(cpu));
         send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
@@ -546,9 +546,10 @@ static void __smp_call_function(void (*func) (void *info), void *info,
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-int native_smp_call_function_mask(cpumask_t mask,
-                                  void (*func)(void *), void *info,
-                                  int wait)
+static int
+native_smp_call_function_mask(cpumask_t mask,
+                              void (*func)(void *), void *info,
+                              int wait)
 {
         struct call_data_struct data;
         cpumask_t allbutself;
@@ -599,60 +600,6 @@ int native_smp_call_function_mask(cpumask_t mask,
         return 0;
 }
 
-/**
- * smp_call_function(): Run a function on all other CPUs.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait (atomically) until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-                      int wait)
-{
-        return smp_call_function_mask(cpu_online_map, func, info, wait);
-}
-EXPORT_SYMBOL(smp_call_function);
-
-/**
- * smp_call_function_single - Run a function on another CPU
- * @cpu: The target CPU.  Cannot be the calling CPU.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- */
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int nonatomic, int wait)
-{
-        /* prevent preemption and reschedule on another processor */
-        int ret;
-        int me = get_cpu();
-        if (cpu == me) {
-                WARN_ON(1);
-                put_cpu();
-                return -EBUSY;
-        }
-
-        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
-
-        put_cpu();
-        return ret;
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
 static void stop_this_cpu (void * dummy)
 {
         local_irq_disable();
@@ -670,7 +617,7 @@ static void stop_this_cpu (void * dummy)
  * this function calls the 'stop' function on all other CPUs in the system.
  */
 
-void native_smp_send_stop(void)
+static void native_smp_send_stop(void)
 {
         /* Don't deadlock on the call lock in panic */
         int nolock = !spin_trylock(&call_lock);
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index b92cc4e8b3bb..08f07a74a9d3 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -98,9 +98,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid);
 
 u8 apicid_2_node[MAX_APICID];
 
-DEFINE_PER_CPU(unsigned long, this_cpu_off);
-EXPORT_PER_CPU_SYMBOL(this_cpu_off);
-
 /*
  * Trampoline 80x86 program as an array.
  */
@@ -763,25 +760,6 @@ static inline struct task_struct * alloc_idle_task(int cpu)
 #define alloc_idle_task(cpu) fork_idle(cpu)
 #endif
 
-/* Initialize the CPU's GDT.  This is either the boot CPU doing itself
-   (still using the master per-cpu area), or a CPU doing it for a
-   secondary which will soon come up. */
-static __cpuinit void init_gdt(int cpu)
-{
-        struct desc_struct *gdt = get_cpu_gdt_table(cpu);
-
-        pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
-                        (u32 *)&gdt[GDT_ENTRY_PERCPU].b,
-                        __per_cpu_offset[cpu], 0xFFFFF,
-                        0x80 | DESCTYPE_S | 0x2, 0x8);
-
-        per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
-        per_cpu(cpu_number, cpu) = cpu;
-}
-
-/* Defined in head.S */
-extern struct Xgt_desc_struct early_gdt_descr;
-
 static int __cpuinit do_boot_cpu(int apicid, int cpu)
 /*
  * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
diff --git a/arch/i386/kernel/smpcommon.c b/arch/i386/kernel/smpcommon.c
new file mode 100644
index 000000000000..1868ae18eb4d
--- /dev/null
+++ b/arch/i386/kernel/smpcommon.c
@@ -0,0 +1,79 @@
+/*
+ * SMP stuff which is common to all sub-architectures.
+ */
+#include <linux/module.h>
+#include <asm/smp.h>
+
+DEFINE_PER_CPU(unsigned long, this_cpu_off);
+EXPORT_PER_CPU_SYMBOL(this_cpu_off);
+
+/* Initialize the CPU's GDT.  This is either the boot CPU doing itself
+   (still using the master per-cpu area), or a CPU doing it for a
+   secondary which will soon come up. */
+__cpuinit void init_gdt(int cpu)
+{
+        struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+
+        pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a,
+                        (u32 *)&gdt[GDT_ENTRY_PERCPU].b,
+                        __per_cpu_offset[cpu], 0xFFFFF,
+                        0x80 | DESCTYPE_S | 0x2, 0x8);
+
+        per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
+        per_cpu(cpu_number, cpu) = cpu;
+}
+
+
+/**
+ * smp_call_function(): Run a function on all other CPUs.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: Unused.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
+                      int wait)
+{
+        return smp_call_function_mask(cpu_online_map, func, info, wait);
+}
+EXPORT_SYMBOL(smp_call_function);
+
+/**
+ * smp_call_function_single - Run a function on another CPU
+ * @cpu: The target CPU.  Cannot be the calling CPU.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: Unused.
+ * @wait: If true, wait until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ */
+int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+                             int nonatomic, int wait)
+{
+        /* prevent preemption and reschedule on another processor */
+        int ret;
+        int me = get_cpu();
+        if (cpu == me) {
+                WARN_ON(1);
+                put_cpu();
+                return -EBUSY;
+        }
+
+        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
+
+        put_cpu();
+        return ret;
+}
+EXPORT_SYMBOL(smp_call_function_single);
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index c05e7e861b29..90da0575fcff 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -733,11 +733,6 @@ static __kprobes void default_do_nmi(struct pt_regs * regs)
                  */
                 if (nmi_watchdog_tick(regs, reason))
                         return;
-#endif
-                if (notify_die(DIE_NMI_POST, "nmi_post", regs, reason, 2, 0)
-                                                        == NOTIFY_STOP)
-                        return;
-#ifdef CONFIG_X86_LOCAL_APIC
                 if (!do_nmi_callback(regs, smp_processor_id()))
 #endif
                         unknown_nmi_error(reason, regs);
diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c
index 50d9c52070b1..b87f8548e75a 100644
--- a/arch/i386/mach-voyager/voyager_smp.c
+++ b/arch/i386/mach-voyager/voyager_smp.c
@@ -27,7 +27,6 @@
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 #include <asm/arch_hooks.h>
-#include <asm/pda.h>
 
 /* TLB state -- visible externally, indexed physically */
 DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_mm, 0 };
@@ -422,7 +421,7 @@ find_smp_config(void)
              VOYAGER_SUS_IN_CONTROL_PORT);
 
         current_thread_info()->cpu = boot_cpu_id;
-        write_pda(cpu_number, boot_cpu_id);
+        x86_write_percpu(cpu_number, boot_cpu_id);
 }
 
 /*
@@ -435,7 +434,7 @@ smp_store_cpu_info(int id)
 
         *c = boot_cpu_data;
 
-        identify_cpu(c);
+        identify_secondary_cpu(c);
 }
 
 /* set up the trampoline and return the physical address of the code */
@@ -459,7 +458,7 @@ start_secondary(void *unused)
         /* external functions not defined in the headers */
         extern void calibrate_delay(void);
 
-        secondary_cpu_init();
+        cpu_init();
 
         /* OK, we're in the routine */
         ack_CPI(VIC_CPU_BOOT_CPI);
@@ -572,7 +571,9 @@ do_boot_cpu(__u8 cpu)
         /* init_tasks (in sched.c) is indexed logically */
         stack_start.esp = (void *) idle->thread.esp;
 
-        init_gdt(cpu, idle);
+        init_gdt(cpu);
+        per_cpu(current_task, cpu) = idle;
+        early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
         irq_ctx_init(cpu);
 
         /* Note: Don't modify initial ss override */
@@ -859,8 +860,8 @@ smp_invalidate_interrupt(void)
 
 /* This routine is called with a physical cpu mask */
 static void
-flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
-                                                unsigned long va)
+voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
+                          unsigned long va)
 {
         int stuck = 50000;
 
@@ -912,7 +913,7 @@ flush_tlb_current_task(void)
         cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id());
         local_flush_tlb();
         if (cpu_mask)
-                flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+                voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
 
         preempt_enable();
 }
@@ -934,7 +935,7 @@ flush_tlb_mm (struct mm_struct * mm)
                         leave_mm(smp_processor_id());
         }
         if (cpu_mask)
-                flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
+                voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
 
         preempt_enable();
 }
@@ -955,7 +956,7 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
         }
 
         if (cpu_mask)
-                flush_tlb_others(cpu_mask, mm, va);
+                voyager_flush_tlb_others(cpu_mask, mm, va);
 
         preempt_enable();
 }
@@ -1044,10 +1045,12 @@ smp_call_function_interrupt(void)
 }
 
 static int
-__smp_call_function_mask (void (*func) (void *info), void *info, int retry,
-                          int wait, __u32 mask)
+voyager_smp_call_function_mask (cpumask_t cpumask,
+                                void (*func) (void *info), void *info,
+                                int wait)
 {
         struct call_data_struct data;
+        u32 mask = cpus_addr(cpumask)[0];
 
         mask &= ~(1<<smp_processor_id());
 
@@ -1083,47 +1086,6 @@ __smp_call_function_mask (void (*func) (void *info), void *info, int retry,
         return 0;
 }
 
-/* Call this function on all CPUs using the function_interrupt above
-    <func> The function to run. This must be fast and non-blocking.
-    <info> An arbitrary pointer to pass to the function.
-    <retry> If true, keep retrying until ready.
-    <wait> If true, wait until function has completed on other CPUs.
-    [RETURNS] 0 on success, else a negative status code. Does not return until
-    remote CPUs are nearly ready to execute <<func>> or are or have executed.
-*/
-int
-smp_call_function(void (*func) (void *info), void *info, int retry,
-                   int wait)
-{
-        __u32 mask = cpus_addr(cpu_online_map)[0];
-
-        return __smp_call_function_mask(func, info, retry, wait, mask);
-}
-EXPORT_SYMBOL(smp_call_function);
-
-/*
- * smp_call_function_single - Run a function on another CPU
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Currently unused.
- * @wait: If true, wait until function has completed on other CPUs.
- *
- * Retrurns 0 on success, else a negative status code.
- *
- * Does not return until the remote CPU is nearly ready to execute <func>
- * or is or has executed.
- */
-
-int
-smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                         int nonatomic, int wait)
-{
-        __u32 mask = 1 << cpu;
-
-        return __smp_call_function_mask(func, info, nonatomic, wait, mask);
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
 /* Sorry about the name.  In an APIC based system, the APICs
  * themselves are programmed to send a timer interrupt.  This is used
  * by linux to reschedule the processor.  Voyager doesn't have this,
@@ -1237,8 +1199,8 @@ smp_alloc_memory(void)
 }
 
 /* send a reschedule CPI to one CPU by physical CPU number*/
-void
-smp_send_reschedule(int cpu)
+static void
+voyager_smp_send_reschedule(int cpu)
 {
         send_one_CPI(cpu, VIC_RESCHEDULE_CPI);
 }
@@ -1267,8 +1229,8 @@ safe_smp_processor_id(void)
 }
 
 /* broadcast a halt to all other CPUs */
-void
-smp_send_stop(void)
+static void
+voyager_smp_send_stop(void)
 {
         smp_call_function(smp_stop_cpu_function, NULL, 1, 1);
 }
@@ -1930,23 +1892,26 @@ smp_voyager_power_off(void *dummy)
                 smp_stop_cpu_function(NULL);
 }
 
-void __init
-smp_prepare_cpus(unsigned int max_cpus)
+static void __init
+voyager_smp_prepare_cpus(unsigned int max_cpus)
 {
         /* FIXME: ignore max_cpus for now */
         smp_boot_cpus();
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+static void __devinit voyager_smp_prepare_boot_cpu(void)
 {
+        init_gdt(smp_processor_id());
+        switch_to_new_gdt();
+
         cpu_set(smp_processor_id(), cpu_online_map);
         cpu_set(smp_processor_id(), cpu_callout_map);
         cpu_set(smp_processor_id(), cpu_possible_map);
         cpu_set(smp_processor_id(), cpu_present_map);
 }
 
-int __devinit
-__cpu_up(unsigned int cpu)
+static int __devinit
+voyager_cpu_up(unsigned int cpu)
 {
         /* This only works at boot for x86.  See "rewrite" above. */
         if (cpu_isset(cpu, smp_commenced_mask))
@@ -1962,8 +1927,8 @@ __cpu_up(unsigned int cpu)
         return 0;
 }
 
-void __init 
-smp_cpus_done(unsigned int max_cpus)
+static void __init
+voyager_smp_cpus_done(unsigned int max_cpus)
 {
         zap_low_mappings();
 }
@@ -1972,5 +1937,16 @@ void __init
 smp_setup_processor_id(void)
 {
         current_thread_info()->cpu = hard_smp_processor_id();
-        write_pda(cpu_number, hard_smp_processor_id());
+        x86_write_percpu(cpu_number, hard_smp_processor_id());
 }
+
+struct smp_ops smp_ops = {
+        .smp_prepare_boot_cpu = voyager_smp_prepare_boot_cpu,
+        .smp_prepare_cpus = voyager_smp_prepare_cpus,
+        .cpu_up = voyager_cpu_up,
+        .smp_cpus_done = voyager_smp_cpus_done,
+
+        .smp_send_stop = voyager_smp_send_stop,
+        .smp_send_reschedule = voyager_smp_send_reschedule,
+        .smp_call_function_mask = voyager_smp_call_function_mask,
+};
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c
index aa58720f6871..860e912a3fbb 100644
--- a/arch/i386/mm/discontig.c
+++ b/arch/i386/mm/discontig.c
@@ -31,6 +31,7 @@
 #include <linux/module.h>
 #include <linux/kexec.h>
 #include <linux/pfn.h>
+#include <linux/swap.h>
 
 #include <asm/e820.h>
 #include <asm/setup.h>
@@ -97,14 +98,8 @@ unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn,
 #endif
 
 extern unsigned long find_max_low_pfn(void);
-extern void find_max_pfn(void);
 extern void add_one_highpage_init(struct page *, int, int);
-
-extern struct e820map e820;
 extern unsigned long highend_pfn, highstart_pfn;
-extern unsigned long max_low_pfn;
-extern unsigned long totalram_pages;
-extern unsigned long totalhigh_pages;
 
 #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
 
@@ -360,7 +355,9 @@ void __init zone_sizes_init(void)
         max_zone_pfns[ZONE_DMA] =
                 virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
         max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
+#ifdef CONFIG_HIGHMEM
         max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
+#endif
 
         /* If SRAT has not registered memory, register it now */
         if (find_max_pfn_with_active_regions() == 0) {
diff --git a/arch/m68k/lib/uaccess.c b/arch/m68k/lib/uaccess.c
index 865f9fb9e686..13854ed8cd9a 100644
--- a/arch/m68k/lib/uaccess.c
+++ b/arch/m68k/lib/uaccess.c
@@ -181,7 +181,7 @@ EXPORT_SYMBOL(strnlen_user);
  * Zero Userspace
  */
 
-unsigned long clear_user(void __user *to, unsigned long n)
+unsigned long __clear_user(void __user *to, unsigned long n)
 {
         unsigned long res;
 
@@ -219,4 +219,4 @@ unsigned long clear_user(void __user *to, unsigned long n)
 
     return res;
 }
-EXPORT_SYMBOL(clear_user);
+EXPORT_SYMBOL(__clear_user);
diff --git a/arch/sparc/defconfig b/arch/sparc/defconfig
index 79e54894529d..38bd79fe6e75 100644
--- a/arch/sparc/defconfig
+++ b/arch/sparc/defconfig
@@ -1,10 +1,11 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-rc1
-# Sun Dec 17 14:20:47 2006
+# Linux kernel version: 2.6.22-rc1
+# Mon May 14 03:25:14 2007
 #
 CONFIG_MMU=y
 CONFIG_HIGHMEM=y
+CONFIG_ZONE_DMA=y
 CONFIG_GENERIC_ISA_DMA=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
@@ -23,14 +24,17 @@ CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_UTS_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SYSCTL=y
@@ -46,14 +50,19 @@ CONFIG_BUG=y
 CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
+CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
-CONFIG_SLAB=y
 CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
 
 #
 # Loadable module support
@@ -107,7 +116,7 @@ CONFIG_ARCH_MAY_HAVE_PC_FDC=y
 CONFIG_SUN_PM=y
 # CONFIG_SUN4 is not set
 CONFIG_PCI=y
-# CONFIG_PCI_MULTITHREAD_PROBE is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
 # CONFIG_PCI_DEBUG is not set
 CONFIG_SUN_OPENPROMFS=m
 # CONFIG_SPARC_LED is not set
@@ -124,6 +133,7 @@ CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
 
 #
 # Networking
@@ -133,14 +143,15 @@ CONFIG_NET=y
 #
 # Networking options
 #
-# CONFIG_NETDEBUG is not set
 CONFIG_PACKET=y
 # CONFIG_PACKET_MMAP is not set
 CONFIG_UNIX=y
 CONFIG_XFRM=y
 CONFIG_XFRM_USER=m
 # CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
 CONFIG_NET_KEY=m
+# CONFIG_NET_KEY_MIGRATE is not set
 CONFIG_INET=y
 # CONFIG_IP_MULTICAST is not set
 # CONFIG_IP_ADVANCED_ROUTER is not set
@@ -170,6 +181,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 CONFIG_IPV6=m
 CONFIG_IPV6_PRIVACY=y
 # CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
@@ -229,7 +241,18 @@ CONFIG_NET_PKTGEN=m
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
+CONFIG_AF_RXRPC=m
+# CONFIG_AF_RXRPC_DEBUG is not set
+# CONFIG_RXKAD is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
 # CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
 
 #
 # Device Drivers
@@ -242,16 +265,13 @@ CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
 # CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
 
 #
 # Connector - unified userspace <-> kernelspace linker
 #
 # CONFIG_CONNECTOR is not set
-
-#
-# Memory Technology Devices (MTD)
-#
 # CONFIG_MTD is not set
 
 #
@@ -262,6 +282,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 #
 # Plug and Play support
 #
+# CONFIG_PNPACPI is not set
 
 #
 # Block devices
@@ -280,15 +301,16 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 
 #
 # Misc devices
 #
+# CONFIG_PHANTOM is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
+# CONFIG_BLINK is not set
 
 #
 # ATA/ATAPI/MFM/RLL support
@@ -322,11 +344,12 @@ CONFIG_CHR_DEV_SG=m
 # CONFIG_SCSI_CONSTANTS is not set
 # CONFIG_SCSI_LOGGING is not set
 # CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
 
 #
 # SCSI Transports
 #
-CONFIG_SCSI_SPI_ATTRS=m
+CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
 # CONFIG_SCSI_SAS_ATTRS is not set
@@ -366,12 +389,9 @@ CONFIG_SCSI_QLOGICPTI=m
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
+CONFIG_SCSI_ESP_CORE=y
 CONFIG_SCSI_SUNESP=y
 # CONFIG_SCSI_SRP is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
 # CONFIG_ATA is not set
 
 #
@@ -390,6 +410,7 @@ CONFIG_SCSI_SUNESP=y
 #
 # IEEE 1394 (FireWire) support
 #
+# CONFIG_FIREWIRE is not set
 # CONFIG_IEEE1394 is not set
 
 #
@@ -410,10 +431,6 @@ CONFIG_TUN=m
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
-
-#
-# PHY device support
-#
 # CONFIG_PHYLIB is not set
 
 #
@@ -435,10 +452,7 @@ CONFIG_SUNQE=m
 # CONFIG_NET_TULIP is not set
 # CONFIG_HP100 is not set
 # CONFIG_NET_PCI is not set
-
-#
-# Ethernet (1000 Mbit)
-#
+CONFIG_NETDEV_1000=y
 # CONFIG_ACENIC is not set
 # CONFIG_DL2K is not set
 # CONFIG_E1000 is not set
@@ -454,15 +468,16 @@ CONFIG_SUNQE=m
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
 # CONFIG_QLA3XXX is not set
-
-#
-# Ethernet (10000 Mbit)
-#
+# CONFIG_ATL1 is not set
+CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_MLX4_CORE is not set
+CONFIG_MLX4_DEBUG=y
 
 #
 # Token Ring devices
@@ -470,13 +485,10 @@ CONFIG_SUNQE=m
 # CONFIG_TR is not set
 
 #
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
+# Wireless LAN
 #
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
@@ -528,9 +540,17 @@ CONFIG_KEYBOARD_SUNKBD=m
 # CONFIG_KEYBOARD_STOWAWAY is not set
 CONFIG_INPUT_MOUSE=y
 CONFIG_MOUSE_PS2=m
+CONFIG_MOUSE_PS2_ALPS=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
 CONFIG_MOUSE_SERIAL=m
+# CONFIG_MOUSE_APPLETOUCH is not set
 # CONFIG_MOUSE_VSXXXAA is not set
 # CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
 # CONFIG_INPUT_TOUCHSCREEN is not set
 # CONFIG_INPUT_MISC is not set
 
@@ -578,14 +598,9 @@ CONFIG_LEGACY_PTY_COUNT=256
 # IPMI
 #
 # CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
 # CONFIG_WATCHDOG is not set
 CONFIG_HW_RANDOM=m
 CONFIG_RTC=m
-# CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
 # CONFIG_DRM is not set
@@ -595,10 +610,7 @@ CONFIG_RTC=m
 # TPM devices
 #
 # CONFIG_TCG_TPM is not set
-
-#
-# I2C support
-#
+CONFIG_DEVPORT=y
 # CONFIG_I2C is not set
 
 #
@@ -611,32 +623,39 @@ CONFIG_RTC=m
 # Dallas's 1-wire bus
 #
 # CONFIG_W1 is not set
-
-#
-# Hardware Monitoring support
-#
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
 # CONFIG_SENSORS_ABITUGURU is not set
 # CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
 # CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_W83627HF is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
 #
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
 
 #
-# Digital Video Broadcasting Devices
+# Graphics support
 #
-# CONFIG_DVB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
-# Graphics support
+# Display device support
 #
-CONFIG_FIRMWARE_EDID=y
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_VGASTATE is not set
 # CONFIG_FB is not set
 
 #
@@ -644,7 +663,6 @@ CONFIG_FIRMWARE_EDID=y
 #
 # CONFIG_PROM_CONSOLE is not set
 CONFIG_DUMMY_CONSOLE=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Sound
@@ -655,6 +673,7 @@ CONFIG_DUMMY_CONSOLE=y
 # HID Devices
 #
 CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
 
 #
 # USB support
@@ -672,10 +691,6 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # USB Gadget Support
 #
 # CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
 # CONFIG_MMC is not set
 
 #
@@ -719,10 +734,6 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 #
 
 #
-# Virtualization
-#
-
-#
 # Misc Linux/SPARC drivers
 #
 CONFIG_SUN_OPENPROMIO=m
@@ -801,6 +812,7 @@ CONFIG_RAMFS=y
 #
 # CONFIG_ADFS_FS is not set
 # CONFIG_AFFS_FS is not set
+# CONFIG_ECRYPT_FS is not set
 # CONFIG_HFS_FS is not set
 # CONFIG_HFSPLUS_FS is not set
 CONFIG_BEFS_FS=m
@@ -827,6 +839,7 @@ CONFIG_LOCKD=y
 CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=y
 CONFIG_SUNRPC_GSS=m
+# CONFIG_SUNRPC_BIND34 is not set
 CONFIG_RPCSEC_GSS_KRB5=m
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
@@ -839,7 +852,7 @@ CONFIG_CIFS=m
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 CONFIG_AFS_FS=m
-CONFIG_RXRPC=m
+# CONFIG_AFS_DEBUG is not set
 # CONFIG_9P_FS is not set
 
 #
@@ -913,15 +926,14 @@ CONFIG_MAGIC_SYSRQ=y
 # CONFIG_DEBUG_FS is not set
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
-CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_RWSEMS is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -932,12 +944,14 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_LIST is not set
 CONFIG_FORCED_INLINING=y
 # CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 
 #
 # Security options
 #
-# CONFIG_KEYS is not set
+CONFIG_KEYS=y
+# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
 # CONFIG_SECURITY is not set
 
 #
@@ -961,8 +975,11 @@ CONFIG_CRYPTO_SHA512=m
 # CONFIG_CRYPTO_GF128MUL is not set
 CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_PCBC=m
 # CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_TWOFISH_COMMON=m
@@ -977,6 +994,7 @@ CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_CRC32C=m
+# CONFIG_CRYPTO_CAMELLIA is not set
 # CONFIG_CRYPTO_TEST is not set
 
 #
@@ -989,9 +1007,12 @@ CONFIG_CRYPTO_CRC32C=m
 CONFIG_BITREVERSE=y
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
 CONFIG_LIBCRC32C=m
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
-CONFIG_IOMAP_COPY=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/sparc/kernel/head.S b/arch/sparc/kernel/head.S
index 97da13c52563..9a219e8b5ddb 100644
--- a/arch/sparc/kernel/head.S
+++ b/arch/sparc/kernel/head.S
@@ -19,7 +19,7 @@
 #include <asm/ptrace.h>
 #include <asm/psr.h>
 #include <asm/page.h>
-#include <linux/kdebug.h>
+#include <asm/kdebug.h>
 #include <asm/winmacro.h>
 #include <asm/thread_info.h>    /* TI_UWINMASK */
 #include <asm/errno.h>
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index 585ef4fb7591..65840a62bb9c 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.21
-# Fri May 11 14:31:45 2007
+# Linux kernel version: 2.6.22-rc1
+# Mon May 14 04:17:48 2007
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -508,10 +508,6 @@ CONFIG_ISCSI_TCP=m
 # CONFIG_SCSI_ESP_CORE is not set
 # CONFIG_SCSI_SUNESP is not set
 # CONFIG_SCSI_SRP is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
 # CONFIG_ATA is not set
 
 #
@@ -568,10 +564,6 @@ CONFIG_DUMMY=m
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
-
-#
-# PHY device support
-#
 # CONFIG_PHYLIB is not set
 
 #
@@ -611,10 +603,7 @@ CONFIG_NET_PCI=y
 # CONFIG_SUNDANCE is not set
 # CONFIG_VIA_RHINE is not set
 # CONFIG_SC92031 is not set
-
-#
-# Ethernet (1000 Mbit)
-#
+CONFIG_NETDEV_1000=y
 # CONFIG_ACENIC is not set
 # CONFIG_DL2K is not set
 CONFIG_E1000=m
@@ -634,10 +623,7 @@ CONFIG_TIGON3=m
 CONFIG_BNX2=m
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
+CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_CHELSIO_T3 is not set
 # CONFIG_IXGB is not set
@@ -667,10 +653,6 @@ CONFIG_MLX4_DEBUG=y
 # CONFIG_USB_RTL8150 is not set
 # CONFIG_USB_USBNET_MII is not set
 # CONFIG_USB_USBNET is not set
-
-#
-# Wan interfaces
-#
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 7455f5d05519..16cc46a71872 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -537,6 +537,13 @@ static int __init build_one_resource(struct device_node *parent,
                         return 0;
         }
 
+        /* When we miss an I/O space match on PCI, just pass it up
+         * to the next PCI bridge and/or controller.
+         */
+        if (!strcmp(bus->name, "pci") &&
+            (addr[0] & 0x03000000) == 0x01000000)
+                return 0;
+
         return 1;
 }
 
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 8087d67a0cf8..24fdf1d0adc5 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -561,6 +561,9 @@ static void hypervisor_xcall_deliver(u64 data0, u64 data1, u64 data2, cpumask_t
         unsigned long flags, status;
         int cnt, retries, this_cpu, prev_sent, i;
 
+        if (cpus_empty(mask))
+                return;
+
         /* We have to do this whole thing with interrupts fully disabled.
          * Otherwise if we send an xcall from interrupt context it will
          * corrupt both our mondo block and cpu list state.
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index d28f01379b9b..cb29fb96948d 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -776,9 +776,6 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs)
                  */
                 if (nmi_watchdog_tick(regs,reason))
                         return;
-                if (notify_die(DIE_NMI_POST, "nmi_post", regs, reason, 2, 0)
-                                                                == NOTIFY_STOP)
-                        return;
                 if (!do_nmi_callback(regs,cpu))
                         unknown_nmi_error(reason, regs);