Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6] / arch / sh / kernel / swsusp.c
1 /*
2  * swsusp.c - SuperH hibernation support
3  *
4  * Copyright (C) 2009 Magnus Damm
5  *
6  * This file is subject to the terms and conditions of the GNU General Public
7  * License.  See the file "COPYING" in the main directory of this archive
8  * for more details.
9  */
10
11 #include <linux/mm.h>
12 #include <linux/sched.h>
13 #include <linux/suspend.h>
14 #include <asm/suspend.h>
15 #include <asm/sections.h>
16 #include <asm/tlbflush.h>
17 #include <asm/page.h>
18 #include <asm/fpu.h>
19
20 struct swsusp_arch_regs swsusp_arch_regs_cpu0;
21
22 int pfn_is_nosave(unsigned long pfn)
23 {
24         unsigned long begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
25         unsigned long end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
26
27         return (pfn >= begin_pfn) && (pfn < end_pfn);
28 }
29
30 void save_processor_state(void)
31 {
32         init_fpu(current);
33 }
34
35 void restore_processor_state(void)
36 {
37         local_flush_tlb_all();
38 }