mirror of
https://github.com/followmsi/android_kernel_google_msm.git
synced 2024-09-21 04:00:29 +00:00
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>
This commit is contained in:
parent
72d2ba1937
commit
a12d591682
|
@ -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);
|
||||
|
|
|
@ -29,19 +29,6 @@
|
|||
|
||||
#ifdef CONFIG_X86_64
|
||||
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);
|
||||
#endif
|
||||
|
||||
struct kmem_cache *task_xstate_cachep;
|
||||
|
@ -378,14 +365,14 @@ static inline void play_dead(void)
|
|||
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 */
|
||||
|
|
|
@ -212,4 +212,11 @@ static inline int disable_nonboot_cpus(void) { return 0; }
|
|||
static inline void enable_nonboot_cpus(void) {}
|
||||
#endif /* !CONFIG_PM_SLEEP_SMP */
|
||||
|
||||
#define IDLE_START 1
|
||||
#define IDLE_END 2
|
||||
|
||||
void idle_notifier_register(struct notifier_block *n);
|
||||
void idle_notifier_unregister(struct notifier_block *n);
|
||||
void idle_notifier_call_chain(unsigned long val);
|
||||
|
||||
#endif /* _LINUX_CPU_H_ */
|
||||
|
|
20
kernel/cpu.c
20
kernel/cpu.c
|
@ -668,3 +668,23 @@ void init_cpu_online(const struct cpumask *src)
|
|||
{
|
||||
cpumask_copy(to_cpumask(cpu_online_bits), src);
|
||||
}
|
||||
|
||||
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);
|
||||
|
|
Loading…
Reference in a new issue