/* reboot.c: reboot/shutdown/halt/poweroff handling * * Copyright (C) 2008 David S. Miller <davem@davemloft.net> */ #include <linux/kernel.h> #include <linux/reboot.h> #include <linux/module.h> #include <linux/pm.h> #include <asm/system.h> #include <asm/oplib.h> #include <asm/prom.h> /* sysctl - toggle power-off restriction for serial console * systems in machine_power_off() */ int scons_pwroff = 1; /* This isn't actually used, it exists merely to satisfy the * reference in kernel/sys.c */ void (*pm_power_off)(void) = machine_power_off; EXPORT_SYMBOL(pm_power_off); void machine_power_off(void) { if (strcmp(of_console_device->type, "serial") || scons_pwroff) prom_halt_power_off(); prom_halt(); } void machine_halt(void) { prom_halt(); panic("Halt failed!"); } void machine_restart(char *cmd) { char *p; p = strchr(reboot_command, '\n'); if (p) *p = 0; if (cmd) prom_reboot(cmd); if (*reboot_command) prom_reboot(reboot_command); prom_reboot(""); panic("Reboot failed!"); }