/* | |
* 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); | |
} |