x86: apic unify smp_spurious/error_interrupt

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 22 insertions, 2 deletions

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index ebe417b4d7f..c728885e4f4 100644
--- 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);