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
17void 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_fp_to_thread(current);
24	flush_altivec_to_thread(current);
25	flush_spe_to_thread(current);
26
27#ifdef CONFIG_PPC64
28	hard_irq_disable();
29#endif
30
31}
32
33void restore_processor_state(void)
34{
35#ifdef CONFIG_PPC32
36	switch_mmu_context(current->active_mm, current->active_mm);
37#endif
38}
39