diff options
| author | Kevin Hilman <khilman@mvista.com> | 2007-03-14 17:33:24 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-04-21 21:02:25 +0100 |
| commit | 9e4559ddffc012a73ea0b54ed3b6a219c1483ae9 (patch) | |
| tree | 7446212df749c28d85a32e29a9ce499385b16d83 /arch | |
| parent | 0567a0c022d5b343370a343121f38fd89925de55 (diff) | |
[ARM] 4258/2: Support for dynticks in idle loop
And, wrap timer_tick() and sysdev suspend/resume in
!GENERIC_CLOCKEVENTS since clockevent layer takes care
of these.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/process.c | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/time.c | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 8afd83d0cbd..5d6e6523598 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -27,6 +27,7 @@ #include <linux/cpu.h> #include <linux/elfcore.h> #include <linux/pm.h> +#include <linux/tick.h> #include <asm/leds.h> #include <asm/processor.h> @@ -159,9 +160,11 @@ void cpu_idle(void) if (!idle) idle = default_idle; leds_event(led_idle_start); + tick_nohz_stop_sched_tick(); while (!need_resched()) idle(); leds_event(led_idle_end); + tick_nohz_restart_sched_tick(); preempt_enable_no_resched(); schedule(); preempt_disable(); diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index f61decb89ba..d0540e4eaf5 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -327,6 +327,7 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc) } EXPORT_SYMBOL(restore_time_delta); +#ifndef CONFIG_GENERIC_CLOCKEVENTS /* * Kernel system timer support. */ @@ -340,8 +341,9 @@ void timer_tick(void) update_process_times(user_mode(get_irq_regs())); #endif } +#endif -#ifdef CONFIG_PM +#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS) static int timer_suspend(struct sys_device *dev, pm_message_t state) { struct sys_timer *timer = container_of(dev, struct sys_timer, dev); |