diff options
| author | Todd Poynor <toddpoynor@google.com> | 2011-06-15 17:21:57 -0700 |
|---|---|---|
| committer | Octavian Purdila <octavian.purdila@nxp.com> | 2017-02-23 14:21:42 +0200 |
| commit | ac9c69731969f9c4165591af201bed7d4d20c786 (patch) | |
| tree | 392ae9e8a0bd3ad19a8a595d82978b2847e7e6b1 /kernel/cpu.c | |
| parent | 2b62659582bb67e7b67c1cbea883d7e6c6783e8c (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 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 217fd2e7f435..3f7369bac680 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1932,3 +1932,23 @@ void __init boot_cpu_state_init(void) { per_cpu_ptr(&cpuhp_state, smp_processor_id())->state = CPUHP_ONLINE; } + +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 idle_notifier_call_chain(unsigned long val) +{ + atomic_notifier_call_chain(&idle_notifier, val, NULL); +} +EXPORT_SYMBOL_GPL(idle_notifier_call_chain); |