reboot.h 2.1 KB

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