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Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[mirror_ubuntu-jammy-kernel.git] / arch / powerpc / kernel / swsusp.c
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2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
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2/*
3 * Common powerpc suspend code for 32 and 64 bits
4 *
5 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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6 */
7
8#include <linux/sched.h>
1fc439c8 9#include <linux/suspend.h>
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10#include <asm/current.h>
11#include <asm/mmu_context.h>
ae3a197e 12#include <asm/switch_to.h>
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13
14void save_processor_state(void)
15{
16 /*
17 * flush out all the special registers so we don't need
18 * to save them in the snapshot
19 */
579e633e 20 flush_all_to_thread(current);
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21
22#ifdef CONFIG_PPC64
23 hard_irq_disable();
24#endif
25
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26}
27
28void restore_processor_state(void)
29{
30#ifdef CONFIG_PPC32
d2adba3f 31 switch_mmu_context(current->active_mm, current->active_mm, NULL);
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32#endif
33}