Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_REBOOT_H
3#define _LINUX_REBOOT_H
4
5
6#include <linux/notifier.h>
7#include <uapi/linux/reboot.h>
8
9#define SYS_DOWN 0x0001 /* Notify of system down */
10#define SYS_RESTART SYS_DOWN
11#define SYS_HALT 0x0002 /* Notify of system halt */
12#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
13
14enum reboot_mode {
15 REBOOT_COLD = 0,
16 REBOOT_WARM,
17 REBOOT_HARD,
18 REBOOT_SOFT,
19 REBOOT_GPIO,
20};
21extern enum reboot_mode reboot_mode;
22
23enum reboot_type {
24 BOOT_TRIPLE = 't',
25 BOOT_KBD = 'k',
26 BOOT_BIOS = 'b',
27 BOOT_ACPI = 'a',
28 BOOT_EFI = 'e',
29 BOOT_CF9_FORCE = 'p',
30 BOOT_CF9_SAFE = 'q',
31};
32extern enum reboot_type reboot_type;
33
34extern int reboot_default;
35extern int reboot_cpu;
36extern int reboot_force;
37
38
39extern int register_reboot_notifier(struct notifier_block *);
40extern int unregister_reboot_notifier(struct notifier_block *);
41
42extern int register_restart_handler(struct notifier_block *);
43extern int unregister_restart_handler(struct notifier_block *);
44extern void do_kernel_restart(char *cmd);
45
46/*
47 * Architecture-specific implementations of sys_reboot commands.
48 */
49
50extern void migrate_to_reboot_cpu(void);
51extern void machine_restart(char *cmd);
52extern void machine_halt(void);
53extern void machine_power_off(void);
54
55extern void machine_shutdown(void);
56struct pt_regs;
57extern void machine_crash_shutdown(struct pt_regs *);
58
59/*
60 * Architecture independent implemenations of sys_reboot commands.
61 */
62
63extern void kernel_restart_prepare(char *cmd);
64extern void kernel_restart(char *cmd);
65extern void kernel_halt(void);
66extern void kernel_power_off(void);
67
68extern int C_A_D; /* for sysctl */
69void ctrl_alt_del(void);
70
71#define POWEROFF_CMD_PATH_LEN 256
72extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
73
74extern void orderly_poweroff(bool force);
75extern void orderly_reboot(void);
76
77/*
78 * Emergency restart, callable from an interrupt handler.
79 */
80
81extern void emergency_restart(void);
82#include <asm/emergency-restart.h>
83
84#endif /* _LINUX_REBOOT_H */