From a2166abd06e7a9fd34eb18b7b27da18c6146e6ef Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jul 2006 22:30:07 +0100 Subject: [ARM] 3679/1: ARM: Make ARM dyntick implementation work with genirq Patch from Thomas Gleixner From: Thomas Gleixner Make the ARM dyntick implementation work with the generic irq code. This hopefully goes away once we consolidated the dyntick implementations. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Signed-off-by: Russell King --- kernel/irq/handle.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'kernel/irq/handle.c') diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 5a360dd..961b875 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -16,6 +16,10 @@ #include #include +#if defined(CONFIG_NO_IDLE_HZ) && defined(CONFIG_ARM) +#include +#endif + #include "internals.h" /** @@ -113,6 +117,15 @@ 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 + if (!(action->flags & SA_INTERRUPT)) local_irq_enable(); -- cgit v1.1 From f8b5473fcbddbfde827ecf82aa0e81fa2a878220 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 1 Jul 2006 22:30:08 +0100 Subject: [ARM] 3690/1: genirq: Introduce and make use of dummy irq chip Patch from Thomas Gleixner From: Thomas Gleixner ARM has a couple of really dumb interrupt controllers. Implement a generic one and fixup the ARM migration. ARM reused the no_irq_chip for this purpose, but this does not work out for platforms which are not converted to the new interrupt type handling model. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Signed-off-by: Russell King --- kernel/irq/handle.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'kernel/irq/handle.c') diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 961b875..e71266c 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -96,6 +96,22 @@ struct irq_chip no_irq_chip = { }; /* + * Generic dummy implementation which can be used for + * real dumb interrupt sources + */ +struct irq_chip dummy_irq_chip = { + .name = "dummy", + .startup = noop_ret, + .shutdown = noop, + .enable = noop, + .disable = noop, + .ack = noop, + .mask = noop, + .unmask = noop, + .end = noop, +}; + +/* * Special, empty irq handler: */ irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs) -- cgit v1.1