Commit | Line | Data |
---|---|---|
5933f6d2 | 1 | // SPDX-License-Identifier: GPL-2.0 |
2ef7f0da MD |
2 | /* |
3 | * swsusp.c - SuperH hibernation support | |
4 | * | |
5 | * Copyright (C) 2009 Magnus Damm | |
2ef7f0da MD |
6 | */ |
7 | ||
8 | #include <linux/mm.h> | |
9 | #include <linux/sched.h> | |
10 | #include <linux/suspend.h> | |
11 | #include <asm/suspend.h> | |
12 | #include <asm/sections.h> | |
13 | #include <asm/tlbflush.h> | |
14 | #include <asm/page.h> | |
15 | #include <asm/fpu.h> | |
16 | ||
17 | struct swsusp_arch_regs swsusp_arch_regs_cpu0; | |
18 | ||
19 | int pfn_is_nosave(unsigned long pfn) | |
20 | { | |
21 | unsigned long begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; | |
22 | unsigned long end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; | |
23 | ||
24 | return (pfn >= begin_pfn) && (pfn < end_pfn); | |
25 | } | |
26 | ||
27 | void save_processor_state(void) | |
28 | { | |
29 | init_fpu(current); | |
30 | } | |
31 | ||
32 | void restore_processor_state(void) | |
33 | { | |
34 | local_flush_tlb_all(); | |
35 | } |