v4.19.13 snapshot.
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
new file mode 100644
index 0000000..e63799a
--- /dev/null
+++ b/include/linux/reboot.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_REBOOT_H
+#define _LINUX_REBOOT_H
+
+
+#include <linux/notifier.h>
+#include <uapi/linux/reboot.h>
+
+struct device;
+
+#define SYS_DOWN 0x0001 /* Notify of system down */
+#define SYS_RESTART SYS_DOWN
+#define SYS_HALT 0x0002 /* Notify of system halt */
+#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
+
+enum reboot_mode {
+ REBOOT_COLD = 0,
+ REBOOT_WARM,
+ REBOOT_HARD,
+ REBOOT_SOFT,
+ REBOOT_GPIO,
+};
+extern enum reboot_mode reboot_mode;
+
+enum reboot_type {
+ BOOT_TRIPLE = 't',
+ BOOT_KBD = 'k',
+ BOOT_BIOS = 'b',
+ BOOT_ACPI = 'a',
+ BOOT_EFI = 'e',
+ BOOT_CF9_FORCE = 'p',
+ BOOT_CF9_SAFE = 'q',
+};
+extern enum reboot_type reboot_type;
+
+extern int reboot_default;
+extern int reboot_cpu;
+extern int reboot_force;
+
+
+extern int register_reboot_notifier(struct notifier_block *);
+extern int unregister_reboot_notifier(struct notifier_block *);
+
+extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
+
+extern int register_restart_handler(struct notifier_block *);
+extern int unregister_restart_handler(struct notifier_block *);
+extern void do_kernel_restart(char *cmd);
+
+/*
+ * Architecture-specific implementations of sys_reboot commands.
+ */
+
+extern void migrate_to_reboot_cpu(void);
+extern void machine_restart(char *cmd);
+extern void machine_halt(void);
+extern void machine_power_off(void);
+
+extern void machine_shutdown(void);
+struct pt_regs;
+extern void machine_crash_shutdown(struct pt_regs *);
+
+/*
+ * Architecture independent implemenations of sys_reboot commands.
+ */
+
+extern void kernel_restart_prepare(char *cmd);
+extern void kernel_restart(char *cmd);
+extern void kernel_halt(void);
+extern void kernel_power_off(void);
+
+extern int C_A_D; /* for sysctl */
+void ctrl_alt_del(void);
+
+#define POWEROFF_CMD_PATH_LEN 256
+extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
+
+extern void orderly_poweroff(bool force);
+extern void orderly_reboot(void);
+
+/*
+ * Emergency restart, callable from an interrupt handler.
+ */
+
+extern void emergency_restart(void);
+#include <asm/emergency-restart.h>
+
+#endif /* _LINUX_REBOOT_H */