blob: b84992c10854d778b1c7987b4278cef13820abbf [file] [log] [blame] [edit]
// 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);
}