Merge remote-tracking branches 'asoc/topic/wm8753' and 'asoc/topic/wm8985' into asoc...
[sfrench/cifs-2.6.git] / arch / powerpc / kernel / swsusp.c
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>
13 #include <asm/current.h>
14 #include <asm/mmu_context.h>
15 #include <asm/switch_to.h>
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          */
23         flush_all_to_thread(current);
24
25 #ifdef CONFIG_PPC64
26         hard_irq_disable();
27 #endif
28
29 }
30
31 void restore_processor_state(void)
32 {
33 #ifdef CONFIG_PPC32
34         switch_mmu_context(current->active_mm, current->active_mm, NULL);
35 #endif
36 }