Commit | Line | Data |
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2ef7f0da MD |
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 | } |