File: swsusp.c

package info (click to toggle)
linux 6.1.139-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,495,880 kB
  • sloc: ansic: 23,469,452; asm: 266,614; sh: 110,522; makefile: 49,887; python: 36,990; perl: 36,834; cpp: 6,056; yacc: 4,908; lex: 2,725; awk: 1,440; ruby: 25; sed: 5
file content (35 lines) | stat: -rw-r--r-- 711 bytes parent folder | download | duplicates (20)
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
34
35
// SPDX-License-Identifier: GPL-2.0
/*
 * swsusp.c - SuperH hibernation support
 *
 * Copyright (C) 2009 Magnus Damm
 */

#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/suspend.h>
#include <asm/suspend.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
#include <asm/page.h>
#include <asm/fpu.h>

struct swsusp_arch_regs swsusp_arch_regs_cpu0;

int pfn_is_nosave(unsigned long pfn)
{
	unsigned long begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
	unsigned long end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;

	return (pfn >= begin_pfn) && (pfn < end_pfn);
}

void save_processor_state(void)
{
	init_fpu(current);
}

void restore_processor_state(void)
{
	local_flush_tlb_all();
}