diff options
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 39 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/msi.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 5 |
3 files changed, 23 insertions, 24 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index bf4acb0b5365..e0e2f020ec02 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1088,23 +1088,14 @@ 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 ... ] */ -__visible void __irq_entry smp_apic_timer_interrupt(struct pt_regs *regs) +DEFINE_IDTENTRY_SYSVEC(sysvec_apic_timer_interrupt) { struct pt_regs *old_regs = set_irq_regs(regs); - /* - * NOTE! We'd better ACK the irq immediately, - * because timer handling can be slow. - * - * update_process_times() expects us to have done irq_enter(). - * Besides, if we don't timer interrupts ignore the global - * interrupt lock, which is the WrongThing (tm) to do. - */ - entering_ack_irq(); + ack_APIC_irq(); trace_local_timer_entry(LOCAL_TIMER_VECTOR); local_apic_timer_interrupt(); trace_local_timer_exit(LOCAL_TIMER_VECTOR); - exiting_irq(); set_irq_regs(old_regs); } @@ -2120,15 +2111,21 @@ void __init register_lapic_address(unsigned long address) * Local APIC interrupts */ -/* - * This interrupt should _never_ happen with our APIC/SMP architecture +/** + * spurious_interrupt - Catch all for interrupts raised on unused vectors + * @regs: Pointer to pt_regs on stack + * @vector: The vector number + * + * This is invoked from ASM entry code to catch all interrupts which + * trigger on an entry which is routed to the common_spurious idtentry + * point. + * + * Also called from sysvec_spurious_apic_interrupt(). */ -__visible void __irq_entry smp_spurious_interrupt(struct pt_regs *regs) +DEFINE_IDTENTRY_IRQ(spurious_interrupt) { - u8 vector = ~regs->orig_ax; u32 v; - entering_irq(); trace_spurious_apic_entry(vector); inc_irq_stat(irq_spurious_count); @@ -2158,13 +2155,17 @@ __visible void __irq_entry smp_spurious_interrupt(struct pt_regs *regs) } out: trace_spurious_apic_exit(vector); - exiting_irq(); +} + +DEFINE_IDTENTRY_SYSVEC(sysvec_spurious_apic_interrupt) +{ + __spurious_interrupt(regs, SPURIOUS_APIC_VECTOR); } /* * This interrupt should never happen with our APIC/SMP architecture */ -__visible void __irq_entry smp_error_interrupt(struct pt_regs *regs) +DEFINE_IDTENTRY_SYSVEC(sysvec_error_interrupt) { static const char * const error_interrupt_reason[] = { "Send CS error", /* APIC Error Bit 0 */ @@ -2178,7 +2179,6 @@ __visible void __irq_entry smp_error_interrupt(struct pt_regs *regs) }; u32 v, i = 0; - entering_irq(); trace_error_apic_entry(ERROR_APIC_VECTOR); /* First tickle the hardware, only then report what went on. -- REW */ @@ -2202,7 +2202,6 @@ __visible void __irq_entry smp_error_interrupt(struct pt_regs *regs) apic_printk(APIC_DEBUG, KERN_CONT "\n"); trace_error_apic_exit(ERROR_APIC_VECTOR); - exiting_irq(); } /** diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 159bd0cb8548..5cbaca58af95 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -115,7 +115,8 @@ msi_set_affinity(struct irq_data *irqd, const struct cpumask *mask, bool force) * denote it as spurious which is no harm as this is a rare event * and interrupt handlers have to cope with spurious interrupts * anyway. If the vector is unused, then it is marked so it won't - * trigger the 'No irq handler for vector' warning in do_IRQ(). + * trigger the 'No irq handler for vector' warning in + * common_interrupt(). * * This requires to hold vector lock to prevent concurrent updates to * the affected vector. diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 67768e54438b..c48be6e1f676 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -861,13 +861,13 @@ static void free_moved_vector(struct apic_chip_data *apicd) apicd->move_in_progress = 0; } -asmlinkage __visible void __irq_entry smp_irq_move_cleanup_interrupt(void) +DEFINE_IDTENTRY_SYSVEC(sysvec_irq_move_cleanup) { struct hlist_head *clhead = this_cpu_ptr(&cleanup_list); struct apic_chip_data *apicd; struct hlist_node *tmp; - entering_ack_irq(); + ack_APIC_irq(); /* Prevent vectors vanishing under us */ raw_spin_lock(&vector_lock); @@ -892,7 +892,6 @@ asmlinkage __visible void __irq_entry smp_irq_move_cleanup_interrupt(void) } raw_spin_unlock(&vector_lock); - exiting_irq(); } static void __send_cleanup_vector(struct apic_chip_data *apicd) |