File: swsusp.c

package info (click to toggle)
linux 6.16.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,724,576 kB
  • sloc: ansic: 26,558,545; asm: 271,315; sh: 143,998; python: 72,469; makefile: 57,126; perl: 36,821; xml: 19,553; cpp: 5,820; yacc: 4,915; lex: 2,955; awk: 1,667; sed: 28; ruby: 25
file content (33 lines) | stat: -rw-r--r-- 650 bytes parent folder | download | duplicates (22)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Common powerpc suspend code for 32 and 64 bits
 *
 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 */

#include <linux/sched.h>
#include <linux/suspend.h>
#include <asm/current.h>
#include <asm/mmu_context.h>
#include <asm/switch_to.h>

void save_processor_state(void)
{
	/*
	 * flush out all the special registers so we don't need
	 * to save them in the snapshot
	 */
	flush_all_to_thread(current);

#ifdef CONFIG_PPC64
	hard_irq_disable();
#endif

}

void restore_processor_state(void)
{
#ifdef CONFIG_PPC32
	switch_mmu_context(current->active_mm, current->active_mm, NULL);
#endif
}