Merge branch 'linus' into x86/xen

Conflicts:
	arch/x86/kernel/cpu/common.c
	arch/x86/kernel/process_64.c
	arch/x86/xen/enlighten.c

1 files changed, 23 insertions, 25 deletions

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 06f1407d5542..76b6f50978f7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -89,7 +89,7 @@ static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
 #define get_idle_for_cpu(x)      (per_cpu(idle_thread_array, x))
 #define set_idle_for_cpu(x, p)   (per_cpu(idle_thread_array, x) = (p))
 #else
-struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
+static struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
 #define get_idle_for_cpu(x)      (idle_thread_array[(x)])
 #define set_idle_for_cpu(x, p)   (idle_thread_array[(x)] = (p))
 #endif
@@ -124,13 +124,12 @@ EXPORT_PER_CPU_SYMBOL(cpu_info);
 
 static atomic_t init_deasserted;
 
-static int boot_cpu_logical_apicid;
 
 /* representing cpus for which sibling maps can be computed */
 static cpumask_t cpu_sibling_setup_map;
 
 /* Set if we find a B stepping CPU */
-int __cpuinitdata smp_b_stepping;
+static int __cpuinitdata smp_b_stepping;
 
 #if defined(CONFIG_NUMA) && defined(CONFIG_X86_32)
 
@@ -166,6 +165,8 @@ static void unmap_cpu_to_node(int cpu)
 #endif
 
 #ifdef CONFIG_X86_32
+static int boot_cpu_logical_apicid;
+
 u8 cpu_2_logical_apicid[NR_CPUS] __read_mostly =
                                         { [0 ... NR_CPUS-1] = BAD_APICID };
 
@@ -211,7 +212,7 @@ static void __cpuinit smp_callin(void)
         /*
          * (This works even if the APIC is not enabled.)
          */
-        phys_id = GET_APIC_ID(read_apic_id());
+        phys_id = read_apic_id();
         cpuid = smp_processor_id();
         if (cpu_isset(cpuid, cpu_callin_map)) {
                 panic("%s: phys CPU#%d, CPU#%d already present??\n", __func__,
@@ -258,6 +259,7 @@ static void __cpuinit smp_callin(void)
         end_local_APIC_setup();
         map_cpu_to_logical_apicid();
 
+        notify_cpu_starting(cpuid);
         /*
          * Get our bogomips.
          *
@@ -551,8 +553,7 @@ static inline void __inquire_remote_apic(int apicid)
                         printk(KERN_CONT
                                "a previous APIC delivery may have failed\n");
 
-                apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
-                apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]);
+                apic_icr_write(APIC_DM_REMRD | regs[i], apicid);
 
                 timeout = 0;
                 do {
@@ -584,11 +585,9 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip)
         int maxlvt;
 
         /* Target chip */
-        apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid));
-
         /* Boot on the stack */
         /* Kick the second */
-        apic_write(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL);
+        apic_icr_write(APIC_DM_NMI | APIC_DEST_LOGICAL, logical_apicid);
 
         pr_debug("Waiting for send to finish...\n");
         send_status = safe_apic_wait_icr_idle();
@@ -641,13 +640,11 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
         /*
          * Turn INIT on target chip
          */
-        apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
-
         /*
          * Send IPI
          */
-        apic_write(APIC_ICR,
-                   APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT);
+        apic_icr_write(APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT,
+                       phys_apicid);
 
         pr_debug("Waiting for send to finish...\n");
         send_status = safe_apic_wait_icr_idle();
@@ -657,10 +654,8 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
         pr_debug("Deasserting INIT.\n");
 
         /* Target chip */
-        apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
-
         /* Send IPI */
-        apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT);
+        apic_icr_write(APIC_INT_LEVELTRIG | APIC_DM_INIT, phys_apicid);
 
         pr_debug("Waiting for send to finish...\n");
         send_status = safe_apic_wait_icr_idle();
@@ -703,11 +698,10 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
                  */
 
                 /* Target chip */
-                apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
-
                 /* Boot on the stack */
                 /* Kick the second */
-                apic_write(APIC_ICR, APIC_DM_STARTUP | (start_eip >> 12));
+                apic_icr_write(APIC_DM_STARTUP | (start_eip >> 12),
+                               phys_apicid);
 
                 /*
                  * Give the other CPU some time to accept the IPI.
@@ -1176,10 +1170,17 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
          * Setup boot CPU information
          */
         smp_store_cpu_info(0); /* Final full version of the data */
+#ifdef CONFIG_X86_32
         boot_cpu_logical_apicid = logical_smp_processor_id();
+#endif
         current_thread_info()->cpu = 0;  /* needed? */
         set_cpu_sibling_map(0);
 
+#ifdef CONFIG_X86_64
+        enable_IR_x2apic();
+        setup_apic_routing();
+#endif
+
         if (smp_sanity_check(max_cpus) < 0) {
                 printk(KERN_INFO "SMP disabled\n");
                 disable_smp();
@@ -1187,9 +1188,9 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
         }
 
         preempt_disable();
-        if (GET_APIC_ID(read_apic_id()) != boot_cpu_physical_apicid) {
+        if (read_apic_id() != boot_cpu_physical_apicid) {
                 panic("Boot APIC ID in local APIC unexpected (%d vs %d)",
-                     GET_APIC_ID(read_apic_id()), boot_cpu_physical_apicid);
+                     read_apic_id(), boot_cpu_physical_apicid);
                 /* Or can we switch back to PIC here? */
         }
         preempt_enable();
@@ -1314,16 +1315,13 @@ __init void prefill_possible_map(void)
         if (!num_processors)
                 num_processors = 1;
 
-#ifdef CONFIG_HOTPLUG_CPU
         if (additional_cpus == -1) {
                 if (disabled_cpus > 0)
                         additional_cpus = disabled_cpus;
                 else
                         additional_cpus = 0;
         }
-#else
-        additional_cpus = 0;
-#endif
+
         possible = num_processors + additional_cpus;
         if (possible > NR_CPUS)
                 possible = NR_CPUS;