diff options
author | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
commit | 0a2d31b62dba9b5b92a38c67c9cc42630513662a (patch) | |
tree | f755d74ec85248de645e10c45ed1a2ed467530f6 /arch/x86/kernel/process.c | |
parent | 8039290a91c5dc4414093c086987a5d7738fe2fd (diff) | |
parent | df944f66784e6d4f2f50739263a4947885d8b6ae (diff) |
Merge branch 'fix/kconfig' into for-linus
Diffstat (limited to 'arch/x86/kernel/process.c')
-rw-r--r-- | arch/x86/kernel/process.c | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 2e4928d45a2..e7e3b019c43 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -337,7 +337,7 @@ EXPORT_SYMBOL(boot_option_idle_override); * Powermanagement idle function, if any.. */ void (*pm_idle)(void); -#if defined(CONFIG_APM_MODULE) && defined(CONFIG_APM_CPU_IDLE) +#ifdef CONFIG_APM_MODULE EXPORT_SYMBOL(pm_idle); #endif @@ -399,7 +399,7 @@ void default_idle(void) cpu_relax(); } } -#if defined(CONFIG_APM_MODULE) && defined(CONFIG_APM_CPU_IDLE) +#ifdef CONFIG_APM_MODULE EXPORT_SYMBOL(default_idle); #endif @@ -438,29 +438,6 @@ void cpu_idle_wait(void) } EXPORT_SYMBOL_GPL(cpu_idle_wait); -/* - * This uses new MONITOR/MWAIT instructions on P4 processors with PNI, - * which can obviate IPI to trigger checking of need_resched. - * We execute MONITOR against need_resched and enter optimized wait state - * through MWAIT. Whenever someone changes need_resched, we would be woken - * up from MWAIT (without an IPI). - * - * New with Core Duo processors, MWAIT can take some hints based on CPU - * capability. - */ -void mwait_idle_with_hints(unsigned long ax, unsigned long cx) -{ - if (!need_resched()) { - if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR)) - clflush((void *)¤t_thread_info()->flags); - - __monitor((void *)¤t_thread_info()->flags, 0, 0); - smp_mb(); - if (!need_resched()) - __mwait(ax, cx); - } -} - /* Default MONITOR/MWAIT with no hints, used for default C1 state */ static void mwait_idle(void) { |