| 1 | #ifndef _LINUX_REBOOT_H
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| 2 | #define _LINUX_REBOOT_H
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| 3 |
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| 4 | |
| 5 | * Magic values required to use _reboot() system call.
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| 6 |
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| 7 |
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| 8 | #define LINUX_REBOOT_MAGIC1 0xfee1dead
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| 9 | #define LINUX_REBOOT_MAGIC2 672274793
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| 10 | #define LINUX_REBOOT_MAGIC2A 85072278
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| 11 | #define LINUX_REBOOT_MAGIC2B 369367448
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| 12 | #define LINUX_REBOOT_MAGIC2C 537993216
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| 13 |
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| 14 |
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| 15 | |
| 16 | * Commands accepted by the _reboot() system call.
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| 17 | *
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| 18 | * RESTART Restart system using default command and mode.
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| 19 | * HALT Stop OS and give system control to ROM monitor, if any.
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| 20 | * CAD_ON Ctrl-Alt-Del sequence causes RESTART command.
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| 21 | * CAD_OFF Ctrl-Alt-Del sequence sends SIGINT to init task.
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| 22 | * POWER_OFF Stop OS and remove all power from system, if possible.
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| 23 | * RESTART2 Restart system using given command string.
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| 24 | * SW_SUSPEND Suspend system using software suspend if compiled in.
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| 25 | * KEXEC Restart system using a previously loaded Linux kernel
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| 26 |
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| 27 |
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| 28 | #define LINUX_REBOOT_CMD_RESTART 0x01234567
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| 29 | #define LINUX_REBOOT_CMD_HALT 0xCDEF0123
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| 30 | #define LINUX_REBOOT_CMD_CAD_ON 0x89ABCDEF
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| 31 | #define LINUX_REBOOT_CMD_CAD_OFF 0x00000000
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| 32 | #define LINUX_REBOOT_CMD_POWER_OFF 0x4321FEDC
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| 33 | #define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4
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| 34 | #define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2
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| 35 | #define LINUX_REBOOT_CMD_KEXEC 0x45584543
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| 36 |
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| 37 |
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| 38 | #ifdef __KERNEL__
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| 39 |
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| 40 | #include <linux/notifier.h>
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| 41 |
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| 42 | extern int register_reboot_notifier(struct notifier_block *);
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| 43 | extern int unregister_reboot_notifier(struct notifier_block *);
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| 44 |
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| 45 |
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| 46 | |
| 47 | * Architecture-specific implementations of sys_reboot commands.
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| 48 |
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| 49 |
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| 50 | extern void machine_restart(char *cmd);
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| 51 | extern void machine_halt(void);
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| 52 | extern void machine_power_off(void);
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| 53 |
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| 54 | extern void machine_shutdown(void);
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| 55 | struct pt_regs;
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| 56 | extern void machine_crash_shutdown(struct pt_regs *);
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| 57 |
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| 58 | |
| 59 | * Architecture independent implemenations of sys_reboot commands.
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| 60 |
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| 61 |
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| 62 | extern void kernel_restart_prepare(char *cmd);
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| 63 | extern void kernel_restart(char *cmd);
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| 64 | extern void kernel_halt(void);
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| 65 | extern void kernel_power_off(void);
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| 66 |
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| 67 | extern int C_A_D;
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| 68 | void ctrl_alt_del(void);
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| 69 |
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| 70 | #define POWEROFF_CMD_PATH_LEN 256
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| 71 | extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
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| 72 |
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| 73 | extern int orderly_poweroff(bool force);
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| 74 |
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| 75 | |
| 76 | * Emergency restart, callable from an interrupt handler.
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| 77 |
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| 78 |
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| 79 | extern void emergency_restart(void);
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| 80 | #include <asm/emergency-restart.h>
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| 81 |
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| 82 | #endif
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| 83 |
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| 84 | #endif
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