diff options
Diffstat (limited to 'arch/x86/kernel/apic_64.c')
| -rw-r--r-- | arch/x86/kernel/apic_64.c | 24 |
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); |