cpu_pm_notify

函数名称：cpu_pm_notify

函数原型：static int cpu_pm_notify(enum cpu_pm_event event, int nr_to_call, int *nr_calls)

返回类型：int

参数：

类型	参数	名称
enum cpu_pm_event	event
int	nr_to_call
int *	nr_calls

27

Wrapper for rcu_irq_enter() where interrupts are enabled.* If you add or remove a call to rcu_irq_enter_irqson(), be sure to test* with CONFIG_RCU_EQS_DEBUG=y.

28

ret等于__atomic_notifier_call_chain - Call functions in an atomic notifier chain*@nh: Pointer to head of the atomic notifier chain*@val: Value passed unmodified to notifier function*@v: Pointer passed unmodified to notifier function

30

Wrapper for rcu_irq_exit() where interrupts are enabled.* If you add or remove a call to rcu_irq_exit_irqson(), be sure to test* with CONFIG_RCU_EQS_DEBUG=y.

32

返回:Restore (negative) errno value from notify return value.

**调用者**
名称	描述
cpu_pm_enter	pu_pm_enter - CPU low power entry notifier* Notifies listeners that a single CPU is entering a low power state that may* cause some blocks in the same power domain as the cpu to reset.* Must be called on the affected CPU with interrupts disabled
cpu_pm_exit	pu_pm_exit - CPU low power exit notifier* Notifies listeners that a single CPU is exiting a low power state that may* have caused some blocks in the same power domain as the cpu to reset
cpu_cluster_pm_enter	pu_cluster_pm_enter - CPU cluster low power entry notifier* Notifies listeners that all cpus in a power domain are entering a low power* state that may cause some blocks in the same power domain to reset
cpu_cluster_pm_exit	pu_cluster_pm_exit - CPU cluster low power exit notifier* Notifies listeners that all cpus in a power domain are exiting form a* low power state that may have caused some blocks in the same power domain* to reset

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