1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_REBOOT_H
3 #define _LINUX_REBOOT_H
6 #include <linux/notifier.h>
7 #include <uapi/linux/reboot.h>
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 */
17 REBOOT_UNDEFINED = -1,
24 extern enum reboot_mode reboot_mode;
25 extern enum reboot_mode panic_reboot_mode;
36 extern enum reboot_type reboot_type;
38 extern int reboot_default;
39 extern int reboot_cpu;
40 extern int reboot_force;
43 extern int register_reboot_notifier(struct notifier_block *);
44 extern int unregister_reboot_notifier(struct notifier_block *);
46 extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
48 extern int register_restart_handler(struct notifier_block *);
49 extern int unregister_restart_handler(struct notifier_block *);
50 extern void do_kernel_restart(char *cmd);
53 * Architecture-specific implementations of sys_reboot commands.
56 extern void migrate_to_reboot_cpu(void);
57 extern void machine_restart(char *cmd);
58 extern void machine_halt(void);
59 extern void machine_power_off(void);
61 extern void machine_shutdown(void);
63 extern void machine_crash_shutdown(struct pt_regs *);
66 * Architecture independent implemenations of sys_reboot commands.
69 extern void kernel_restart_prepare(char *cmd);
70 extern void kernel_restart(char *cmd);
71 extern void kernel_halt(void);
72 extern void kernel_power_off(void);
74 extern int C_A_D; /* for sysctl */
75 void ctrl_alt_del(void);
77 #define POWEROFF_CMD_PATH_LEN 256
78 extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
80 extern void orderly_poweroff(bool force);
81 extern void orderly_reboot(void);
82 void hw_protection_shutdown(const char *reason, int ms_until_forced);
85 * Emergency restart, callable from an interrupt handler.
88 extern void emergency_restart(void);
89 #include <asm/emergency-restart.h>
91 #endif /* _LINUX_REBOOT_H */