diff options
Diffstat (limited to 'arch/arm/mach-ns9xxx')
| -rw-r--r-- | arch/arm/mach-ns9xxx/irq.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c index d4a583cc44c..7ddc8fde774 100644 --- a/arch/arm/mach-ns9xxx/irq.c +++ b/arch/arm/mach-ns9xxx/irq.c @@ -9,6 +9,7 @@ * the Free Software Foundation. */ #include <linux/interrupt.h> +#include <linux/kernel_stat.h> #include <asm/io.h> #include <asm/mach/irq.h> #include <asm/mach-types.h> @@ -52,6 +53,43 @@ static struct irq_chip ns9xxx_chip = { .unmask = ns9xxx_unmask_irq, }; +#if 0 +#define handle_irq handle_level_irq +#else +void handle_prio_irq(unsigned int irq, struct irq_desc *desc) +{ + unsigned int cpu = smp_processor_id(); + struct irqaction *action; + irqreturn_t action_ret; + + spin_lock(&desc->lock); + + if (unlikely(desc->status & IRQ_INPROGRESS)) + goto out_unlock; + + desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); + kstat_cpu(cpu).irqs[irq]++; + + action = desc->action; + if (unlikely(!action || (desc->status & IRQ_DISABLED))) + goto out_unlock; + + desc->status |= IRQ_INPROGRESS; + spin_unlock(&desc->lock); + + action_ret = handle_IRQ_event(irq, action); + + spin_lock(&desc->lock); + desc->status &= ~IRQ_INPROGRESS; + if (!(desc->status & IRQ_DISABLED) && desc->chip->ack) + desc->chip->ack(irq); + +out_unlock: + spin_unlock(&desc->lock); +} +#define handle_irq handle_prio_irq +#endif + void __init ns9xxx_init_irq(void) { int i; @@ -69,7 +107,7 @@ void __init ns9xxx_init_irq(void) for (i = 0; i <= 31; ++i) { set_irq_chip(i, &ns9xxx_chip); - set_irq_handler(i, handle_level_irq); + set_irq_handler(i, handle_irq); set_irq_flags(i, IRQF_VALID); } } |