diff options
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/handle.c | 2 | ||||
| -rw-r--r-- | kernel/irq/internals.h | 40 |
2 files changed, 42 insertions, 0 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 01fc7f79d74..5a360dd4331 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -24,6 +24,7 @@ void fastcall handle_bad_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) { + print_irq_desc(irq, desc); kstat_this_cpu.irqs[irq]++; ack_bad_irq(irq); } @@ -61,6 +62,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned = { */ static void ack_bad(unsigned int irq) { + print_irq_desc(irq, irq_desc + irq); ack_bad_irq(irq); } diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index 2ba8ae3c8e9..08a849a2244 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -22,3 +22,43 @@ static inline void unregister_handler_proc(unsigned int irq, struct irqaction *action) { } #endif +/* + * Debugging printout: + */ + +#include <linux/kallsyms.h> + +#define P(f) if (desc->status & f) printk("%14s set\n", #f) + +static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) +{ + printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", + irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); + printk("->handle_irq(): %p, ", desc->handle_irq); + print_symbol("%s\n", (unsigned long)desc->handle_irq); + printk("->chip(): %p, ", desc->chip); + print_symbol("%s\n", (unsigned long)desc->chip); + printk("->action(): %p\n", desc->action); + if (desc->action) { + printk("->action->handler(): %p, ", desc->action->handler); + print_symbol("%s\n", (unsigned long)desc->action->handler); + } + + P(IRQ_INPROGRESS); + P(IRQ_DISABLED); + P(IRQ_PENDING); + P(IRQ_REPLAY); + P(IRQ_AUTODETECT); + P(IRQ_WAITING); + P(IRQ_LEVEL); + P(IRQ_MASKED); +#ifdef CONFIG_IRQ_PER_CPU + P(IRQ_PER_CPU); +#endif + P(IRQ_NOPROBE); + P(IRQ_NOREQUEST); + P(IRQ_NOAUTOEN); +} + +#undef P + |