x86: apic unify smp_spurious/error_interrupt

[pandora-kernel.git] / arch / x86 / kernel / apic_64.c

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index ebe417b..c728885 100644 (file)
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1528,10 +1528,17 @@ int __init APIC_init_uniprocessor(void)
 /*
  * This interrupt should _never_ happen with our APIC/SMP architecture
  */
+#ifdef CONFIG_X86_64
 asmlinkage void smp_spurious_interrupt(void)
+#else
+void smp_spurious_interrupt(struct pt_regs *regs)
+#endif
 {
-       unsigned int v;
+       u32 v;
+
+#ifdef CONFIG_X86_64
        exit_idle();
+#endif
        irq_enter();
        /*
         * Check if this really is a spurious interrupt and ACK it
@@ -1542,18 +1549,31 @@ asmlinkage void smp_spurious_interrupt(void)
        if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
                ack_APIC_irq();
 
+#ifdef CONFIG_X86_64
        add_pda(irq_spurious_count, 1);
+#else
+       /* see sw-dev-man vol 3, chapter 7.4.13.5 */
+       printk(KERN_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();
 }
 
 /*
  * This interrupt should never happen with our APIC/SMP architecture
  */
+#ifdef CONFIG_X86_64
 asmlinkage void smp_error_interrupt(void)
+#else
+void smp_error_interrupt(struct pt_regs *regs)
+#endif
 {
-       unsigned int v, v1;
+       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);