diff options
| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-02 15:07:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-02 15:07:45 -0700 |
| commit | b4b9034132c7e1e4474999e688dd7d03b7d97a99 (patch) | |
| tree | c02c571b9e0e59b9ffa18baae23c83f09ff07adb /kernel/irq/handle.c | |
| parent | a8c4c20dfa8b28a3c99e33c639d9c2ea5657741e (diff) | |
| parent | 07d265dd59456f702b7d2a1ac471f06ee4adc9ef (diff) | |
Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm: (24 commits)
[ARM] 3683/2: ARM: Convert at91rm9200 to generic irq handling
[ARM] 3682/2: ARM: Convert ixp4xx to generic irq handling
[ARM] 3702/1: ARM: Convert ixp23xx to generic irq handling
[ARM] 3701/1: ARM: Convert plat-omap to generic irq handling
[ARM] 3700/1: ARM: Convert lh7a40x to generic irq handling
[ARM] 3699/1: ARM: Convert s3c2410 to generic irq handling
[ARM] 3698/1: ARM: Convert sa1100 to generic irq handling
[ARM] 3697/1: ARM: Convert shark to generic irq handling
[ARM] 3696/1: ARM: Convert clps711x to generic irq handling
[ARM] 3694/1: ARM: Convert ecard driver to generic irq handling
[ARM] 3693/1: ARM: Convert omap1 to generic irq handling
[ARM] 3691/1: ARM: Convert imx to generic irq handling
[ARM] 3688/1: ARM: Convert clps7500 to generic irq handling
[ARM] 3687/1: ARM: Convert integrator to generic irq handling
[ARM] 3685/1: ARM: Convert pxa to generic irq handling
[ARM] 3684/1: ARM: Convert l7200 to generic irq handling
[ARM] 3681/1: ARM: Convert ixp2000 to generic irq handling
[ARM] 3680/1: ARM: Convert footbridge to generic irq handling
[ARM] 3695/1: ARM drivers/pcmcia: Fixup includes
[ARM] 3689/1: ARM drivers/input/touchscreen: Fixup includes
...
Manual conflict resolved in kernel/irq/handle.c (butt-ugly ARM tickless
code).
Diffstat (limited to 'kernel/irq/handle.c')
| -rw-r--r-- | kernel/irq/handle.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 6070e0464690..6d8b30114961 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -16,6 +16,10 @@ #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" /** @@ -92,6 +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) @@ -113,6 +133,15 @@ 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 & IRQF_DISABLED)) local_irq_enable(); |