1 | // SPDX-License-Identifier: GPL-2.0 |
---|---|
2 | /* |
3 | * swsusp.c - SuperH hibernation support |
4 | * |
5 | * Copyright (C) 2009 Magnus Damm |
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 | } |
36 |