WSL2-Linux-Kernel/include/linux/syscore_ops.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  syscore_ops.h - System core operations.
 *
 *  Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
 */

#ifndef _LINUX_SYSCORE_OPS_H
#define _LINUX_SYSCORE_OPS_H

#include <linux/list.h>

struct syscore_ops {
	struct list_head node;
	int (*suspend)(void);
	void (*resume)(void);
	void (*shutdown)(void);
};

extern void register_syscore_ops(struct syscore_ops *ops);
extern void unregister_syscore_ops(struct syscore_ops *ops);
#ifdef CONFIG_PM_SLEEP
extern int syscore_suspend(void);
extern void syscore_resume(void);
#endif
extern void syscore_shutdown(void);

#endif
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 Based on 1 normalized pattern(s): this file is released under the gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 68 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-06-01 11:08:42 +03:00			`/* SPDX-License-Identifier: GPL-2.0-only */`
PM / Core: Introduce struct syscore_ops for core subsystems PM Some subsystems need to carry out suspend/resume and shutdown operations with one CPU on-line and interrupts disabled. The only way to register such operations is to define a sysdev class and a sysdev specifically for this purpose which is cumbersome and inefficient. Moreover, the arguments taken by sysdev suspend, resume and shutdown callbacks are practically never necessary. For this reason, introduce a simpler interface allowing subsystems to register operations to be executed very late during system suspend and shutdown and very early during resume in the form of strcut syscore_ops objects. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> 2011-03-15 02:43:46 +03:00			`/*`
			`* syscore_ops.h - System core operations.`
			`*`
			`* Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.`
			`*/`

			`#ifndef _LINUX_SYSCORE_OPS_H`
			`#define _LINUX_SYSCORE_OPS_H`

			`#include <linux/list.h>`

			`struct syscore_ops {`
			`struct list_head node;`
			`int (*suspend)(void);`
			`void (*resume)(void);`
			`void (*shutdown)(void);`
			`};`

			`extern void register_syscore_ops(struct syscore_ops *ops);`
			`extern void unregister_syscore_ops(struct syscore_ops *ops);`
			`#ifdef CONFIG_PM_SLEEP`
			`extern int syscore_suspend(void);`
			`extern void syscore_resume(void);`
			`#endif`
			`extern void syscore_shutdown(void);`

			`#endif`