Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 6 | * Copyright (C) 2001, 06 by Ralf Baechle (ralf@linux-mips.org) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * Copyright (C) 2001 MIPS Technologies, Inc. |
| 8 | */ |
| 9 | #include <linux/kernel.h> |
Paul Gortmaker | 73bc256 | 2011-07-23 16:30:40 -0400 | [diff] [blame] | 10 | #include <linux/export.h> |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 11 | #include <linux/pm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/types.h> |
| 13 | #include <linux/reboot.h> |
Andrew Bresticker | f45e388 | 2015-03-25 10:25:44 -0700 | [diff] [blame] | 14 | #include <linux/delay.h> |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 25 | void (*pm_power_off)(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
Ralf Baechle | f8bf35a | 2006-12-10 15:09:38 +0000 | [diff] [blame] | 27 | EXPORT_SYMBOL(pm_power_off); |
| 28 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | void machine_restart(char *command) |
| 30 | { |
Ralf Baechle | 9414d36 | 2006-01-17 21:14:01 +0000 | [diff] [blame] | 31 | if (_machine_restart) |
| 32 | _machine_restart(command); |
Andrew Bresticker | f45e388 | 2015-03-25 10:25:44 -0700 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | } |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | void machine_halt(void) |
| 46 | { |
Ralf Baechle | 9414d36 | 2006-01-17 21:14:01 +0000 | [diff] [blame] | 47 | if (_machine_halt) |
| 48 | _machine_halt(); |
Andrew Bresticker | f45e388 | 2015-03-25 10:25:44 -0700 | [diff] [blame] | 49 | |
| 50 | #ifdef CONFIG_SMP |
| 51 | preempt_disable(); |
| 52 | smp_send_stop(); |
| 53 | #endif |
| 54 | local_irq_disable(); |
| 55 | while (1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | } |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | void machine_power_off(void) |
| 59 | { |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 60 | if (pm_power_off) |
| 61 | pm_power_off(); |
Andrew Bresticker | f45e388 | 2015-03-25 10:25:44 -0700 | [diff] [blame] | 62 | |
| 63 | #ifdef CONFIG_SMP |
| 64 | preempt_disable(); |
| 65 | smp_send_stop(); |
| 66 | #endif |
| 67 | local_irq_disable(); |
| 68 | while (1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | } |