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1 | /* |
2 | * Common powerpc suspend code for 32 and 64 bits | |
3 | * | |
4 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/sched.h> | |
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13 | #include <asm/current.h> |
14 | #include <asm/mmu_context.h> | |
ae3a197e | 15 | #include <asm/switch_to.h> |
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16 | |
17 | void save_processor_state(void) | |
18 | { | |
19 | /* | |
20 | * flush out all the special registers so we don't need | |
21 | * to save them in the snapshot | |
22 | */ | |
579e633e | 23 | flush_all_to_thread(current); |
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24 | |
25 | #ifdef CONFIG_PPC64 | |
26 | hard_irq_disable(); | |
27 | #endif | |
28 | ||
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29 | } |
30 | ||
31 | void restore_processor_state(void) | |
32 | { | |
33 | #ifdef CONFIG_PPC32 | |
0330581a | 34 | switch_mmu_context(current->active_mm, current->active_mm); |
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35 | #endif |
36 | } |