[linux-2.6-block.git] / arch / powerpc / kernel / suspend.c

/*
 * Suspend support specific for power.
 *
 * Distribute under GPLv2
 *
 * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
 * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
 */

#include <linux/mm.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);
}
Commit	Line	Data
49c3df6a VG	1	/*
	2	* Suspend support specific for power.
	3	*
	4	* Distribute under GPLv2
	5	*
a2531293	6	* Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
49c3df6a VG	7	* Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
	8	*/
	9
27ac792c	10	#include <linux/mm.h>
49c3df6a	11	#include <asm/page.h>
7f8998c7	12	#include <asm/sections.h>
49c3df6a VG	13
	14	/*
	15	* pfn_is_nosave - check if given pfn is in the 'nosave' section
	16	*/
	17
	18	int 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	}