Cregit: Linux 5.4: suspend.c

Contributors: 5
Author	Tokens	Token Proportion	Commits	Commit Proportion
Vivek Goyal	53	82.81%	1	20.00%
Andrea Righi	3	4.69%	1	20.00%
Geert Uytterhoeven	3	4.69%	1	20.00%
Mathieu Malaterre	3	4.69%	1	20.00%
Thomas Gleixner	2	3.12%	1	20.00%
Total	64		5

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Suspend support specific for power.
 *
 * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
 * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
 */

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

/*
 *	pfn_is_nosave - check if given pfn is in the 'nosave' section
 */

int pfn_is_nosave(unsigned long pfn)
{
	unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
	unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
	return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
}