diff options
| author | Todd Poynor <toddpoynor@google.com> | 2011-06-15 17:21:57 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:38:50 -0800 |
| commit | f65de758b3d84a085bfe3fc769c4650bcf62ffa4 (patch) | |
| tree | a62fef65227cbd27e1332e300996ec6ede51d726 /arch/x86 | |
| parent | 761f7c709ed7c3afad269613e06df03d023d8d1c (diff) | |
Move x86_64 idle notifiers to generic
Move the x86_64 idle notifiers originally by Andi Kleen and Venkatesh
Pallipadi to generic.
Change-Id: Idf29cda15be151f494ff245933c12462643388d5
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/idle.h | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/process_64.c | 18 |
2 files changed, 2 insertions, 23 deletions
diff --git a/arch/x86/include/asm/idle.h b/arch/x86/include/asm/idle.h index f49253d75710..f1e4268ef3c6 100644 --- a/arch/x86/include/asm/idle.h +++ b/arch/x86/include/asm/idle.h @@ -1,13 +1,6 @@ #ifndef _ASM_X86_IDLE_H #define _ASM_X86_IDLE_H -#define IDLE_START 1 -#define IDLE_END 2 - -struct notifier_block; -void idle_notifier_register(struct notifier_block *n); -void idle_notifier_unregister(struct notifier_block *n); - #ifdef CONFIG_X86_64 void enter_idle(void); void exit_idle(void); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index f693e44e1bf6..cbd26458911a 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -57,31 +57,17 @@ asmlinkage extern void ret_from_fork(void); DEFINE_PER_CPU(unsigned long, old_rsp); static DEFINE_PER_CPU(unsigned char, is_idle); -static ATOMIC_NOTIFIER_HEAD(idle_notifier); - -void idle_notifier_register(struct notifier_block *n) -{ - atomic_notifier_chain_register(&idle_notifier, n); -} -EXPORT_SYMBOL_GPL(idle_notifier_register); - -void idle_notifier_unregister(struct notifier_block *n) -{ - atomic_notifier_chain_unregister(&idle_notifier, n); -} -EXPORT_SYMBOL_GPL(idle_notifier_unregister); - void enter_idle(void) { percpu_write(is_idle, 1); - atomic_notifier_call_chain(&idle_notifier, IDLE_START, NULL); + idle_notifier_call_chain(IDLE_START); } static void __exit_idle(void) { if (x86_test_and_clear_bit_percpu(0, is_idle) == 0) return; - atomic_notifier_call_chain(&idle_notifier, IDLE_END, NULL); + idle_notifier_call_chain(IDLE_END); } /* Called from interrupts to signify idle end */ |