函数源码

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source File:kernel\cpu_pm.c Create Date:2022-07-27 13:58:49
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/**
 * cpu_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.
 *
 * Notified drivers can include VFP co-processor, interrupt controller
 * and its PM extensions, local CPU timers context save/restore which
 * shouldn't be interrupted. Hence it must be called with interrupts disabled.
 *
 * Return conditions are same as __raw_notifier_call_chain.
 */
int cpu_pm_exit(void)
{
    return cpu_pm_notify(CPU_PM_EXIT, -1, NULL);
}