1 #ifndef _LINUX_REBOOT_H 2 #define _LINUX_REBOOT_H 3 4 5 #include <linux/notifier.h> 6 #include <uapi/linux/reboot.h> 7 8 #define SYS_DOWN 0x0001 /* Notify of system down */ 9 #define SYS_RESTART SYS_DOWN 10 #define SYS_HALT 0x0002 /* Notify of system halt */ 11 #define SYS_POWER_OFF 0x0003 /* Notify of system power off */ 12 13 extern int register_reboot_notifier(struct notifier_block *); 14 extern int unregister_reboot_notifier(struct notifier_block *); 15 16 17 /* 18 * Architecture-specific implementations of sys_reboot commands. 19 */ 20 21 extern void machine_restart(char *cmd); 22 extern void machine_halt(void); 23 extern void machine_power_off(void); 24 25 extern void machine_shutdown(void); 26 struct pt_regs; 27 extern void machine_crash_shutdown(struct pt_regs *); 28 29 /* 30 * Architecture independent implemenations of sys_reboot commands. 31 */ 32 33 extern void kernel_restart_prepare(char *cmd); 34 extern void kernel_restart(char *cmd); 35 extern void kernel_halt(void); 36 extern void kernel_power_off(void); 37 38 extern int C_A_D; /* for sysctl */ 39 void ctrl_alt_del(void); 40 41 #define POWEROFF_CMD_PATH_LEN 256 42 extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN]; 43 44 extern int orderly_poweroff(bool force); 45 46 /* 47 * Emergency restart, callable from an interrupt handler. 48 */ 49 50 extern void emergency_restart(void); 51 #include <asm/emergency-restart.h> 52 53 #endif /* _LINUX_REBOOT_H */ 54