| /* | |
| * 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> | |
| /* References to section boundaries */ | |
| extern const void __nosave_begin, __nosave_end; | |
| /* | |
| * 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); | |
| } |