Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / apic.c

diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 93cf2d13f335097c00f02f6e48ad280726f2778f..6b7f824db16003a89dd2fca8786c130459e26dda 100644 (file)
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -30,6 +30,7 @@
 #include <linux/module.h>
 #include <linux/dmi.h>
 #include <linux/dmar.h>
+#include <linux/ftrace.h>
 
 #include <asm/atomic.h>
 #include <asm/smp.h>
@@ -118,8 +119,6 @@ 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
  */
@@ -777,11 +776,7 @@ static void local_apic_timer_interrupt(void)
        /*
         * the NMI deadlock-detector uses this.
         */
-#ifdef CONFIG_X86_64
-       add_pda(apic_timer_irqs, 1);
-#else
-       per_cpu(irq_stat, cpu).apic_timer_irqs++;
-#endif
+       inc_irq_stat(apic_timer_irqs);
 
        evt->event_handler(evt);
 }
@@ -794,7 +789,7 @@ static void local_apic_timer_interrupt(void)
  * [ if a single-CPU system runs an SMP kernel then we call the local
  *   interrupt as well. Thus we cannot inline the local irq ... ]
  */
-void smp_apic_timer_interrupt(struct pt_regs *regs)
+void __irq_entry smp_apic_timer_interrupt(struct pt_regs *regs)
 {
        struct pt_regs *old_regs = set_irq_regs(regs);
 
@@ -808,9 +803,7 @@ void smp_apic_timer_interrupt(struct pt_regs *regs)
         * Besides, if we don't timer interrupts ignore the global
         * interrupt lock, which is the WrongThing (tm) to do.
         */
-#ifdef CONFIG_X86_64
        exit_idle();
-#endif
        irq_enter();
        local_apic_timer_interrupt();
        irq_exit();
@@ -1668,9 +1661,7 @@ void smp_spurious_interrupt(struct pt_regs *regs)
 {
        u32 v;
 
-#ifdef CONFIG_X86_64
        exit_idle();
-#endif
        irq_enter();
        /*
         * Check if this really is a spurious interrupt and ACK it
@@ -1681,14 +1672,11 @@ void smp_spurious_interrupt(struct pt_regs *regs)
        if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
                ack_APIC_irq();
 
-#ifdef CONFIG_X86_64
-       add_pda(irq_spurious_count, 1);
-#else
+       inc_irq_stat(irq_spurious_count);
+
        /* see sw-dev-man vol 3, chapter 7.4.13.5 */
        pr_info("spurious APIC interrupt on CPU#%d, "
                "should never happen.\n", smp_processor_id());
-       __get_cpu_var(irq_stat).irq_spurious_count++;
-#endif
        irq_exit();
 }
 
@@ -1699,9 +1687,7 @@ void smp_error_interrupt(struct pt_regs *regs)
 {
        u32 v, v1;
 
-#ifdef CONFIG_X86_64
        exit_idle();
-#endif
        irq_enter();
        /* First tickle the hardware, only then report what went on. -- REW */
        v = apic_read(APIC_ESR);
@@ -1819,28 +1805,32 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 void __cpuinit generic_processor_info(int apicid, int version)
 {
        int cpu;
-       cpumask_t tmp_map;
 
        /*
         * Validate version
         */
        if (version == 0x0) {
                pr_warning("BIOS bug, APIC version is 0 for CPU#%d! "
-                       "fixing up to 0x10. (tell your hw vendor)\n",
-                       version);
+                          "fixing up to 0x10. (tell your hw vendor)\n",
+                               version);
                version = 0x10;
        }
        apic_version[apicid] = version;
 
-       if (num_processors >= NR_CPUS) {
-               pr_warning("WARNING: NR_CPUS limit of %i reached."
-                       "  Processor ignored.\n", NR_CPUS);
+       if (num_processors >= nr_cpu_ids) {
+               int max = nr_cpu_ids;
+               int thiscpu = max + disabled_cpus;
+
+               pr_warning(
+                       "ACPI: NR_CPUS/possible_cpus limit of %i reached."
+                       "  Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
+
+               disabled_cpus++;
                return;
        }
 
        num_processors++;
-       cpus_complement(tmp_map, cpu_present_map);
-       cpu = first_cpu(tmp_map);
+       cpu = cpumask_next_zero(-1, cpu_present_mask);
 
        physid_set(apicid, phys_cpu_present_map);
        if (apicid == boot_cpu_physical_apicid) {