1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Common powerpc suspend code for 32 and 64 bits
4 *
5 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
6 */
7
8#include <linux/sched.h>
9#include <linux/suspend.h>
10#include <asm/current.h>
11#include <asm/mmu_context.h>
12#include <asm/switch_to.h>
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	 */
20	flush_all_to_thread(current);
21
22#ifdef CONFIG_PPC64
23	hard_irq_disable();
24#endif
25
26}
27
28void restore_processor_state(void)
29{
30#ifdef CONFIG_PPC32
31	switch_mmu_context(current->active_mm, current->active_mm, NULL);
32#endif
33}
34