suspend.c (5800571960234f9d1f1011bf135799b2014d4268) suspend.c (1ec0cd8286f35988134e05367ab5e66213b84e7c)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Suspend support specific for power.
4 *
5 * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
6 * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
7 */
8
9#include <linux/mm.h>
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Suspend support specific for power.
4 *
5 * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
6 * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
7 */
8
9#include <linux/mm.h>
10#include <linux/suspend.h>
10#include <asm/page.h>
11#include <asm/sections.h>
12
13/*
14 * pfn_is_nosave - check if given pfn is in the 'nosave' section
15 */
16
17int pfn_is_nosave(unsigned long pfn)
18{
19 unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
20 unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
21 return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
22}
11#include <asm/page.h>
12#include <asm/sections.h>
13
14/*
15 * pfn_is_nosave - check if given pfn is in the 'nosave' section
16 */
17
18int pfn_is_nosave(unsigned long pfn)
19{
20 unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
21 unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
22 return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
23}