diff options
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/handle.c | 31 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 10 |
2 files changed, 26 insertions, 15 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 6d8b30114961..fc4e906aedbd 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -16,10 +16,6 @@ #include <linux/interrupt.h> #include <linux/kernel_stat.h> -#if defined(CONFIG_NO_IDLE_HZ) && defined(CONFIG_ARM) -#include <asm/dyntick.h> -#endif - #include "internals.h" /** @@ -133,17 +129,10 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs, irqreturn_t ret, retval = IRQ_NONE; unsigned int status = 0; -#if defined(CONFIG_NO_IDLE_HZ) && defined(CONFIG_ARM) - if (!(action->flags & SA_TIMER) && system_timer->dyn_tick != NULL) { - write_seqlock(&xtime_lock); - if (system_timer->dyn_tick->state & DYN_TICK_ENABLED) - system_timer->dyn_tick->handler(irq, 0, regs); - write_sequnlock(&xtime_lock); - } -#endif + handle_dynamic_tick(action); if (!(action->flags & IRQF_DISABLED)) - local_irq_enable(); + local_irq_enable_in_hardirq(); do { ret = action->handler(irq, action->dev_id, regs); @@ -260,3 +249,19 @@ out: return 1; } +#ifdef CONFIG_TRACE_IRQFLAGS + +/* + * lockdep: we want to handle all irq_desc locks as a single lock-class: + */ +static struct lock_class_key irq_desc_lock_class; + +void early_init_irq_lock_class(void) +{ + int i; + + for (i = 0; i < NR_IRQS; i++) + lockdep_set_class(&irq_desc[i].lock, &irq_desc_lock_class); +} + +#endif diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index fede5fa351df..4e461438e48b 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -234,7 +234,7 @@ int setup_irq(unsigned int irq, struct irqaction *new) ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK)) goto mismatch; -#if defined(CONFIG_IRQ_PER_CPU) && defined(IRQF_PERCPU) +#if defined(CONFIG_IRQ_PER_CPU) /* All handlers must agree on per-cpuness */ if ((old->flags & IRQF_PERCPU) != (new->flags & IRQF_PERCPU)) @@ -250,7 +250,7 @@ int setup_irq(unsigned int irq, struct irqaction *new) } *p = new; -#if defined(CONFIG_IRQ_PER_CPU) && defined(IRQF_PERCPU) +#if defined(CONFIG_IRQ_PER_CPU) if (new->flags & IRQF_PERCPU) desc->status |= IRQ_PER_CPU; #endif @@ -410,6 +410,12 @@ int request_irq(unsigned int irq, struct irqaction *action; int retval; +#ifdef CONFIG_LOCKDEP + /* + * Lockdep wants atomic interrupt handlers: + */ + irqflags |= SA_INTERRUPT; +#endif /* * Sanity-check: shared interrupts must pass in a real dev-ID, * otherwise we'll have trouble later trying to figure out |