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| author | Tony Breeds <tony@bakeyournoodle.com> | 2007-09-21 13:26:03 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-10-03 15:44:34 +1000 |
| commit | 1ad749980a5fda46f7ec920d8409ddcc89b38714 (patch) | |
| tree | 3c1b28f1f6e03660c36e6f320fce54e4e5a1eb5e /arch/powerpc/kernel/idle.c | |
| parent | d831d0b83f205888f4be4dee0a074ad67ef809b3 (diff) | |
| download | lwn-1ad749980a5fda46f7ec920d8409ddcc89b38714.tar.gz lwn-1ad749980a5fda46f7ec920d8409ddcc89b38714.zip | |
[POWERPC] Enable tickless idle and high res timers for powerpc
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/idle.c')
| -rw-r--r-- | arch/powerpc/kernel/idle.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index a9e9cbd32975..abd2957fe537 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -24,6 +24,7 @@ #include <linux/smp.h> #include <linux/cpu.h> #include <linux/sysctl.h> +#include <linux/tick.h> #include <asm/system.h> #include <asm/processor.h> @@ -59,6 +60,7 @@ void cpu_idle(void) set_thread_flag(TIF_POLLING_NRFLAG); while (1) { + tick_nohz_stop_sched_tick(); while (!need_resched() && !cpu_should_die()) { ppc64_runlatch_off(); @@ -90,6 +92,7 @@ void cpu_idle(void) HMT_medium(); ppc64_runlatch_on(); + tick_nohz_restart_sched_tick(); if (cpu_should_die()) cpu_die(); preempt_enable_no_resched(); |