diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/autoprobe.c | 9 | ||||
| -rw-r--r-- | kernel/irq/handle.c | 10 | ||||
| -rw-r--r-- | kernel/irq/internals.h | 6 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 14 | ||||
| -rw-r--r-- | kernel/irq/resend.c | 4 | ||||
| -rw-r--r-- | kernel/irq/spurious.c | 1 |
6 files changed, 41 insertions, 3 deletions
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c index ed98c7d46cf..cfdb63eb5c9 100644 --- a/kernel/irq/autoprobe.c +++ b/kernel/irq/autoprobe.c @@ -40,8 +40,15 @@ unsigned long probe_irq_on(void) desc = irq_desc + i; spin_lock_irq(&desc->lock); - if (!desc->action && !(desc->status & IRQ_NOPROBE)) + if (!desc->action && !(desc->status & IRQ_NOPROBE)) { + /* + * Some chips need to know about probing in + * progress: + */ + if (desc->chip->set_type) + desc->chip->set_type(i, IRQ_TYPE_PROBE); desc->chip->startup(i); + } spin_unlock_irq(&desc->lock); } diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index bddcb8f5fea..a04b516afa5 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -18,6 +18,16 @@ #include "internals.h" +/** + * handle_bad_irq - handle spurious and unhandled irqs + */ +void fastcall +handle_bad_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) +{ + kstat_this_cpu.irqs[irq]++; + ack_bad_irq(irq); +} + /* * Linux has a controller-independent interrupt architecture. * Every controller has a 'controller-template', that is used diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index 46feba63026..2ba8ae3c8e9 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -4,6 +4,12 @@ extern int noirqdebug; +/* Set default functions for irq_chip structures: */ +extern void irq_chip_set_defaults(struct irq_chip *chip); + +/* Set default handler: */ +extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); + #ifdef CONFIG_PROC_FS extern void register_irq_proc(unsigned int irq); extern void register_handler_proc(unsigned int irq, struct irqaction *action); diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 1a2e7663096..b61784ee78b 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -153,6 +153,17 @@ int can_request_irq(unsigned int irq, unsigned long irqflags) return !action; } +void compat_irq_chip_set_default_handler(struct irq_desc *desc) +{ + /* + * If the architecture still has not overriden + * the flow handler then zap the default. This + * should catch incorrect flow-type setting. + */ + if (desc->handle_irq == &handle_bad_irq) + desc->handle_irq = NULL; +} + /* * Internal function to register an irqaction - typically used to * allocate special interrupts that are part of the architecture. @@ -217,6 +228,9 @@ int setup_irq(unsigned int irq, struct irqaction *new) desc->status |= IRQ_PER_CPU; #endif if (!shared) { + irq_chip_set_defaults(desc->chip); + compat_irq_chip_set_default_handler(desc); + desc->status &= ~(IRQ_AUTODETECT | IRQ_WAITING | IRQ_INPROGRESS); diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 096b102fb39..872f91ba2ce 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -37,9 +37,9 @@ static void resend_irqs(unsigned long arg) irq = find_first_bit(irqs_resend, NR_IRQS); clear_bit(irq, irqs_resend); desc = irq_desc + irq; - spin_lock_irqsave(&desc->lock, flags); + local_irq_disable(); desc->handle_irq(irq, desc, NULL); - spin_unlock_irqrestore(&desc->lock, flags); + local_irq_enable(); } } diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c index 3a0a6212330..ca187b83f89 100644 --- a/kernel/irq/spurious.c +++ b/kernel/irq/spurious.c @@ -168,6 +168,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc, */ printk(KERN_EMERG "Disabling IRQ #%d\n", irq); desc->status |= IRQ_DISABLED; + desc->depth = 1; desc->chip->disable(irq); } desc->irqs_unhandled = 0; |