Merge branch 'linus' into x86/urgent

1 files changed, 63 insertions, 60 deletions

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 4b99b1bdeb6c..3e58b676d23b 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -52,30 +52,41 @@
 
 unsigned long mp_lapic_addr;
 
-DEFINE_PER_CPU(u16, x86_bios_cpu_apicid) = BAD_APICID;
-EXPORT_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
-
 /*
  * Knob to control our willingness to enable the local APIC.
  *
- * -1=force-disable, +1=force-enable
+ * +1=force-enable
  */
-static int enable_local_apic __initdata;
+static int force_enable_local_apic;
+int disable_apic;
 
 /* Local APIC timer verification ok */
 static int local_apic_timer_verify_ok;
-/* Disable local APIC timer from the kernel commandline or via dmi quirk
-   or using CPU MSR check */
-int local_apic_timer_disabled;
+/* Disable local APIC timer from the kernel commandline or via dmi quirk */
+static int local_apic_timer_disabled;
 /* Local APIC timer works in C2 */
 int local_apic_timer_c2_ok;
 EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
 
+int first_system_vector = 0xfe;
+
+char system_vectors[NR_VECTORS] = { [0 ... NR_VECTORS-1] = SYS_VECTOR_FREE};
+
 /*
  * Debug level, exported for io_apic.c
  */
 int apic_verbosity;
 
+int pic_mode;
+
+/* Have we found an MP table */
+int smp_found_config;
+
+static struct resource lapic_resource = {
+        .name = "Local APIC",
+        .flags = IORESOURCE_MEM | IORESOURCE_BUSY,
+};
+
 static unsigned int calibration_result;
 
 static int lapic_next_event(unsigned long delta,
@@ -545,7 +556,7 @@ void __init setup_boot_APIC_clock(void)
                         lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
                 else
                         printk(KERN_WARNING "APIC timer registered as dummy,"
-                               " due to nmi_watchdog=1!\n");
+                                " due to nmi_watchdog=%d!\n", nmi_watchdog);
         }
 
         /* Setup the lapic or request the broadcast */
@@ -963,7 +974,7 @@ void __cpuinit setup_local_APIC(void)
          * Double-check whether this APIC is really registered.
          */
         if (!apic_id_registered())
-                BUG();
+                WARN_ON_ONCE(1);
 
         /*
          * Intel recommends to set DFR, LDR and TPR before enabling
@@ -1094,7 +1105,7 @@ static int __init detect_init_APIC(void)
         u32 h, l, features;
 
         /* Disabled by kernel option? */
-        if (enable_local_apic < 0)
+        if (disable_apic)
                 return -1;
 
         switch (boot_cpu_data.x86_vendor) {
@@ -1117,7 +1128,7 @@ static int __init detect_init_APIC(void)
                  * Over-ride BIOS and try to enable the local APIC only if
                  * "lapic" specified.
                  */
-                if (enable_local_apic <= 0) {
+                if (!force_enable_local_apic) {
                         printk(KERN_INFO "Local APIC disabled by BIOS -- "
                                "you can enable it with \"lapic\"\n");
                         return -1;
@@ -1154,9 +1165,6 @@ static int __init detect_init_APIC(void)
         if (l & MSR_IA32_APICBASE_ENABLE)
                 mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
 
-        if (nmi_watchdog != NMI_NONE && nmi_watchdog != NMI_DISABLED)
-                nmi_watchdog = NMI_LOCAL_APIC;
-
         printk(KERN_INFO "Found and enabled local APIC!\n");
 
         apic_pm_activate();
@@ -1195,36 +1203,6 @@ void __init init_apic_mappings(void)
         if (boot_cpu_physical_apicid == -1U)
                 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
 
-#ifdef CONFIG_X86_IO_APIC
-        {
-                unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
-                int i;
-
-                for (i = 0; i < nr_ioapics; i++) {
-                        if (smp_found_config) {
-                                ioapic_phys = mp_ioapics[i].mpc_apicaddr;
-                                if (!ioapic_phys) {
-                                        printk(KERN_ERR
-                                               "WARNING: bogus zero IO-APIC "
-                                               "address found in MPTABLE, "
-                                               "disabling IO/APIC support!\n");
-                                        smp_found_config = 0;
-                                        skip_ioapic_setup = 1;
-                                        goto fake_ioapic_page;
-                                }
-                        } else {
-fake_ioapic_page:
-                                ioapic_phys = (unsigned long)
-                                              alloc_bootmem_pages(PAGE_SIZE);
-                                ioapic_phys = __pa(ioapic_phys);
-                        }
-                        set_fixmap_nocache(idx, ioapic_phys);
-                        printk(KERN_DEBUG "mapped IOAPIC to %08lx (%08lx)\n",
-                               __fix_to_virt(idx), ioapic_phys);
-                        idx++;
-                }
-        }
-#endif
 }
 
 /*
@@ -1236,7 +1214,7 @@ int apic_version[MAX_APICS];
 
 int __init APIC_init_uniprocessor(void)
 {
-        if (enable_local_apic < 0)
+        if (disable_apic)
                 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
 
         if (!smp_found_config && !cpu_has_apic)
@@ -1265,10 +1243,14 @@ int __init APIC_init_uniprocessor(void)
 #ifdef CONFIG_CRASH_DUMP
         boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
 #endif
-        phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid);
+        physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
 
         setup_local_APIC();
 
+#ifdef CONFIG_X86_IO_APIC
+        if (!smp_found_config || skip_ioapic_setup || !nr_ioapics)
+#endif
+                localise_nmi_watchdog();
         end_local_APIC_setup();
 #ifdef CONFIG_X86_IO_APIC
         if (smp_found_config)
@@ -1351,13 +1333,13 @@ void __init smp_intr_init(void)
          * The reschedule interrupt is a CPU-to-CPU reschedule-helper
          * IPI, driven by wakeup.
          */
-        set_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
+        alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
 
         /* IPI for invalidation */
-        set_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt);
+        alloc_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt);
 
         /* IPI for generic function call */
-        set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
+        alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
 }
 #endif
 
@@ -1370,15 +1352,15 @@ void __init apic_intr_init(void)
         smp_intr_init();
 #endif
         /* self generated IPI for local APIC timer */
-        set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
+        alloc_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
 
         /* IPI vectors for APIC spurious and error interrupts */
-        set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
-        set_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
+        alloc_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
+        alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
 
         /* thermal monitor LVT interrupt */
 #ifdef CONFIG_X86_MCE_P4THERMAL
-        set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
+        alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
 #endif
 }
 
@@ -1513,6 +1495,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
                  */
                 cpu = 0;
 
+        if (apicid > max_physical_apicid)
+                max_physical_apicid = apicid;
+
         /*
          * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
          * but we need to work other dependencies like SMP_SUSPEND etc
@@ -1520,7 +1505,7 @@ void __cpuinit generic_processor_info(int apicid, int version)
          * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
          *       - Ashok Raj <ashok.raj@intel.com>
          */
-        if (num_processors > 8) {
+        if (max_physical_apicid >= 8) {
                 switch (boot_cpu_data.x86_vendor) {
                 case X86_VENDOR_INTEL:
                         if (!APIC_XAPIC(version)) {
@@ -1534,9 +1519,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
         }
 #ifdef CONFIG_SMP
         /* are we being called early in kernel startup? */
-        if (x86_cpu_to_apicid_early_ptr) {
-                u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr;
-                u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr;
+        if (early_per_cpu_ptr(x86_cpu_to_apicid)) {
+                u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
+                u16 *bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid);
 
                 cpu_to_apicid[cpu] = apicid;
                 bios_cpu_apicid[cpu] = apicid;
@@ -1703,14 +1688,14 @@ static void apic_pm_activate(void) { }
  */
 static int __init parse_lapic(char *arg)
 {
-        enable_local_apic = 1;
+        force_enable_local_apic = 1;
         return 0;
 }
 early_param("lapic", parse_lapic);
 
 static int __init parse_nolapic(char *arg)
 {
-        enable_local_apic = -1;
+        disable_apic = 1;
         clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
         return 0;
 }
@@ -1740,3 +1725,21 @@ static int __init apic_set_verbosity(char *str)
 }
 __setup("apic=", apic_set_verbosity);
 
+static int __init lapic_insert_resource(void)
+{
+        if (!apic_phys)
+                return -1;
+
+        /* Put local APIC into the resource map. */
+        lapic_resource.start = apic_phys;
+        lapic_resource.end = lapic_resource.start + PAGE_SIZE - 1;
+        insert_resource(&iomem_resource, &lapic_resource);
+
+        return 0;
+}
+
+/*
+ * need call insert after e820_reserve_resources()
+ * that is using request_resource
+ */
+late_initcall(lapic_insert_resource);