linux-imx

/* CPU control.

 * (C) 2001, 2002, 2003, 2004 Rusty Russell

 *

 * This code is licenced under the GPL.

 */

#include <linux/proc_fs.h>

#include <linux/smp.h>

#include <linux/init.h>

#include <linux/notifier.h>

#include <linux/sched/signal.h>

#include <linux/sched/hotplug.h>

#include <linux/sched/task.h>

#include <linux/sched/smt.h>

#include <linux/unistd.h>

#include <linux/cpu.h>

#include <linux/oom.h>

#include <linux/rcupdate.h>

#include <linux/export.h>

#include <linux/bug.h>

#include <linux/kthread.h>

#include <linux/stop_machine.h>

#include <linux/mutex.h>

#include <linux/gfp.h>

#include <linux/suspend.h>

#include <linux/lockdep.h>

#include <linux/tick.h>

#include <linux/irq.h>

#include <linux/nmi.h>

#include <linux/smpboot.h>

#include <linux/relay.h>

#include <linux/slab.h>

#include <linux/percpu-rwsem.h>

​

#include <trace/events/power.h>

#define CREATE_TRACE_POINTS

#include <trace/events/cpuhp.h>

​

#include "smpboot.h"

​

/**

 * cpuhp_cpu_state - Per cpu hotplug state storage

 * @state:  The current cpu state

 * @target: The target state

 * @thread: Pointer to the hotplug thread

 * @should_run: Thread should execute

 * @rollback:   Perform a rollback

 * @single: Single callback invocation

 * @bringup:    Single callback bringup or teardown selector

 * @cb_state:   The state for a single callback (install/uninstall)

 * @result: Result of the operation

 * @done_up:    Signal completion to the issuer of the task for cpu-up

 * @done_down:  Signal completion to the issuer of the task for cpu-down

 */

struct cpuhp_cpu_state {

    enum cpuhp_state    state;

    enum cpuhp_state    target;

    enum cpuhp_state    fail;

#ifdef CONFIG_SMP

    struct task_struct  *thread;

    bool            should_run;

    bool            rollback;

    bool            single;

    bool            bringup;