1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2001, 06 by Ralf Baechle (ralf@linux-mips.org) 7 * Copyright (C) 2001 MIPS Technologies, Inc. 8 */ 9 #include <linux/kernel.h> 10 #include <linux/export.h> 11 #include <linux/pm.h> 12 #include <linux/types.h> 13 #include <linux/reboot.h> 14 #include <linux/delay.h> 15 16 #include <asm/reboot.h> 17 18 /* 19 * Urgs ... Too many MIPS machines to handle this in a generic way. 20 * So handle all using function pointers to machine specific 21 * functions. 22 */ 23 void (*_machine_restart)(char *command); 24 void (*_machine_halt)(void); 25 void (*pm_power_off)(void); 26 27 EXPORT_SYMBOL(pm_power_off); 28 29 void machine_restart(char *command) 30 { 31 if (_machine_restart) 32 _machine_restart(command); 33 34 #ifdef CONFIG_SMP 35 preempt_disable(); 36 smp_send_stop(); 37 #endif 38 do_kernel_restart(command); 39 mdelay(1000); 40 pr_emerg("Reboot failed -- System halted\n"); 41 local_irq_disable(); 42 while (1); 43 } 44 45 void machine_halt(void) 46 { 47 if (_machine_halt) 48 _machine_halt(); 49 50 #ifdef CONFIG_SMP 51 preempt_disable(); 52 smp_send_stop(); 53 #endif 54 local_irq_disable(); 55 while (1); 56 } 57 58 void machine_power_off(void) 59 { 60 if (pm_power_off) 61 pm_power_off(); 62 63 #ifdef CONFIG_SMP 64 preempt_disable(); 65 smp_send_stop(); 66 #endif 67 local_irq_disable(); 68 while (1); 69 } 70