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git.odroid.com / yocto / kernel / common / c942fddf8793b2013be8c901b47d0a8dc02bf99f / . / include / linux / reboot.h
blob: 3734cd8f38a896d55af2ff3a3f3518707444c4fe [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +0100[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]2#ifndef _LINUX_REBOOT_H
3#define _LINUX_REBOOT_H
4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5
6#include <linux/notifier.h>
David Howells607ca462012-10-13 10:46:48 +0100[diff] [blame]7#include <uapi/linux/reboot.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]8
Andrey Smirnov2d8364b2017-11-17 15:30:57 -0800[diff] [blame]9struct device;
10
Amerigo Wangc5f41752011-07-25 17:13:10 -0700[diff] [blame]11#define SYS_DOWN 0x0001 /* Notify of system down */
12#define SYS_RESTART SYS_DOWN
13#define SYS_HALT 0x0002 /* Notify of system halt */
14#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
15
Robin Holtedf2b132013-07-08 16:01:35 -0700[diff] [blame]16enum reboot_mode {
Aaro Koskinenb287a252019-05-14 15:45:37 -0700[diff] [blame]17 REBOOT_UNDEFINED = -1,
Robin Holtedf2b132013-07-08 16:01:35 -0700[diff] [blame]18 REBOOT_COLD = 0,
19 REBOOT_WARM,
Robin Holtc97a7002013-07-08 16:01:36 -0700[diff] [blame]20 REBOOT_HARD,
21 REBOOT_SOFT,
Robin Holt7b6d8642013-07-08 16:01:40 -0700[diff] [blame]22 REBOOT_GPIO,
Robin Holtedf2b132013-07-08 16:01:35 -0700[diff] [blame]23};
Robin Holt1b3a5d02013-07-08 16:01:42 -0700[diff] [blame]24extern enum reboot_mode reboot_mode;
Aaro Koskinenb287a252019-05-14 15:45:37 -0700[diff] [blame]25extern enum reboot_mode panic_reboot_mode;
Robin Holt1b3a5d02013-07-08 16:01:42 -0700[diff] [blame]26
27enum reboot_type {
Ingo Molnar5be44a62014-04-04 08:41:26 +0200[diff] [blame]28 BOOT_TRIPLE = 't',
29 BOOT_KBD = 'k',
30 BOOT_BIOS = 'b',
31 BOOT_ACPI = 'a',
32 BOOT_EFI = 'e',
33 BOOT_CF9_FORCE = 'p',
34 BOOT_CF9_SAFE = 'q',
Robin Holt1b3a5d02013-07-08 16:01:42 -0700[diff] [blame]35};
36extern enum reboot_type reboot_type;
37
38extern int reboot_default;
39extern int reboot_cpu;
40extern int reboot_force;
41
Robin Holtedf2b132013-07-08 16:01:35 -0700[diff] [blame]42
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]43extern int register_reboot_notifier(struct notifier_block *);
44extern int unregister_reboot_notifier(struct notifier_block *);
45
Andrey Smirnov2d8364b2017-11-17 15:30:57 -0800[diff] [blame]46extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
47
Guenter Roeckb63adb972014-09-26 00:03:16 +0000[diff] [blame]48extern int register_restart_handler(struct notifier_block *);
49extern int unregister_restart_handler(struct notifier_block *);
50extern void do_kernel_restart(char *cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]51
52/*
53 * Architecture-specific implementations of sys_reboot commands.
54 */
55
Vivek Goyalc97102b2013-12-18 17:08:31 -0800[diff] [blame]56extern void migrate_to_reboot_cpu(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]57extern void machine_restart(char *cmd);
58extern void machine_halt(void);
59extern void machine_power_off(void);
60
Eric W. Biedermandc009d92005-06-25 14:57:52 -0700[diff] [blame]61extern void machine_shutdown(void);
Alexander Nyberg6e274d12005-06-25 14:58:26 -0700[diff] [blame]62struct pt_regs;
63extern void machine_crash_shutdown(struct pt_regs *);
Eric W. Biedermandc009d92005-06-25 14:57:52 -0700[diff] [blame]64
Robin Holt972ee832013-07-08 16:01:34 -0700[diff] [blame]65/*
Eric W. Biederman4a00ea12005-07-26 11:24:14 -0600[diff] [blame]66 * Architecture independent implemenations of sys_reboot commands.
67 */
68
Huang Yingca195b72008-08-15 00:40:24 -0700[diff] [blame]69extern void kernel_restart_prepare(char *cmd);
Eric W. Biederman4a00ea12005-07-26 11:24:14 -0600[diff] [blame]70extern void kernel_restart(char *cmd);
71extern void kernel_halt(void);
72extern void kernel_power_off(void);
Adrian Bunk83cc5ed2006-06-25 05:47:41 -0700[diff] [blame]73
Dave Youngeb5572f2010-03-10 15:23:59 -0800[diff] [blame]74extern int C_A_D; /* for sysctl */
Adrian Bunk83cc5ed2006-06-25 05:47:41 -0700[diff] [blame]75void ctrl_alt_del(void);
Eric W. Biederman4a00ea12005-07-26 11:24:14 -0600[diff] [blame]76
Jeremy Fitzhardinge10a0a8d2007-07-17 18:37:02 -0700[diff] [blame]77#define POWEROFF_CMD_PATH_LEN 256
78extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
79
Joel Stanley7a54f462015-04-15 16:16:53 -0700[diff] [blame]80extern void orderly_poweroff(bool force);
81extern void orderly_reboot(void);
Jeremy Fitzhardinge10a0a8d2007-07-17 18:37:02 -0700[diff] [blame]82
Eric W. Biederman7c903472005-07-26 11:29:55 -0600[diff] [blame]83/*
84 * Emergency restart, callable from an interrupt handler.
85 */
86
87extern void emergency_restart(void);
88#include <asm/emergency-restart.h>
89
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]90#endif /* _LINUX_REBOOT_H */