1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _LINUX_REBOOT_H
3*4882a593Smuzhiyun #define _LINUX_REBOOT_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/notifier.h>
7*4882a593Smuzhiyun #include <uapi/linux/reboot.h>
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun struct device;
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #define SYS_DOWN 0x0001 /* Notify of system down */
12*4882a593Smuzhiyun #define SYS_RESTART SYS_DOWN
13*4882a593Smuzhiyun #define SYS_HALT 0x0002 /* Notify of system halt */
14*4882a593Smuzhiyun #define SYS_POWER_OFF 0x0003 /* Notify of system power off */
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun enum reboot_mode {
17*4882a593Smuzhiyun REBOOT_UNDEFINED = -1,
18*4882a593Smuzhiyun REBOOT_COLD = 0,
19*4882a593Smuzhiyun REBOOT_WARM,
20*4882a593Smuzhiyun REBOOT_HARD,
21*4882a593Smuzhiyun REBOOT_SOFT,
22*4882a593Smuzhiyun REBOOT_GPIO,
23*4882a593Smuzhiyun };
24*4882a593Smuzhiyun extern enum reboot_mode reboot_mode;
25*4882a593Smuzhiyun extern enum reboot_mode panic_reboot_mode;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun enum reboot_type {
28*4882a593Smuzhiyun BOOT_TRIPLE = 't',
29*4882a593Smuzhiyun BOOT_KBD = 'k',
30*4882a593Smuzhiyun BOOT_BIOS = 'b',
31*4882a593Smuzhiyun BOOT_ACPI = 'a',
32*4882a593Smuzhiyun BOOT_EFI = 'e',
33*4882a593Smuzhiyun BOOT_CF9_FORCE = 'p',
34*4882a593Smuzhiyun BOOT_CF9_SAFE = 'q',
35*4882a593Smuzhiyun };
36*4882a593Smuzhiyun extern enum reboot_type reboot_type;
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun extern int reboot_default;
39*4882a593Smuzhiyun extern int reboot_cpu;
40*4882a593Smuzhiyun extern int reboot_force;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun extern int register_reboot_notifier(struct notifier_block *);
44*4882a593Smuzhiyun extern int unregister_reboot_notifier(struct notifier_block *);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun extern int register_restart_handler(struct notifier_block *);
49*4882a593Smuzhiyun extern int unregister_restart_handler(struct notifier_block *);
50*4882a593Smuzhiyun extern void do_kernel_restart(char *cmd);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun #ifdef CONFIG_NO_GKI
53*4882a593Smuzhiyun extern int register_pre_restart_handler(struct notifier_block *nb);
54*4882a593Smuzhiyun extern int unregister_pre_restart_handler(struct notifier_block *nb);
55*4882a593Smuzhiyun extern void do_kernel_pre_restart(char *cmd);
56*4882a593Smuzhiyun #else
register_pre_restart_handler(struct notifier_block * nb)57*4882a593Smuzhiyun static inline int register_pre_restart_handler(struct notifier_block *nb)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun return 0;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
unregister_pre_restart_handler(struct notifier_block * nb)62*4882a593Smuzhiyun static inline int unregister_pre_restart_handler(struct notifier_block *nb)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun return 0;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
do_kernel_pre_restart(char * cmd)67*4882a593Smuzhiyun static inline void do_kernel_pre_restart(char *cmd)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun #endif
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun /*
73*4882a593Smuzhiyun * Architecture-specific implementations of sys_reboot commands.
74*4882a593Smuzhiyun */
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun extern void migrate_to_reboot_cpu(void);
77*4882a593Smuzhiyun extern void machine_restart(char *cmd);
78*4882a593Smuzhiyun extern void machine_halt(void);
79*4882a593Smuzhiyun extern void machine_power_off(void);
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun extern void machine_shutdown(void);
82*4882a593Smuzhiyun struct pt_regs;
83*4882a593Smuzhiyun extern void machine_crash_shutdown(struct pt_regs *);
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun /*
86*4882a593Smuzhiyun * Architecture independent implemenations of sys_reboot commands.
87*4882a593Smuzhiyun */
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun extern void kernel_restart_prepare(char *cmd);
90*4882a593Smuzhiyun extern void kernel_restart(char *cmd);
91*4882a593Smuzhiyun extern void kernel_halt(void);
92*4882a593Smuzhiyun extern void kernel_power_off(void);
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun extern int C_A_D; /* for sysctl */
95*4882a593Smuzhiyun void ctrl_alt_del(void);
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun #define POWEROFF_CMD_PATH_LEN 256
98*4882a593Smuzhiyun extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun extern void orderly_poweroff(bool force);
101*4882a593Smuzhiyun extern void orderly_reboot(void);
102*4882a593Smuzhiyun
103*4882a593Smuzhiyun /*
104*4882a593Smuzhiyun * Emergency restart, callable from an interrupt handler.
105*4882a593Smuzhiyun */
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun extern void emergency_restart(void);
108*4882a593Smuzhiyun #include <asm/emergency-restart.h>
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun #endif /* _LINUX_REBOOT_H */
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