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
17struct swsusp_arch_regs swsusp_arch_regs_cpu0;
18
19int 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
27void save_processor_state(void)
28{
29	init_fpu(current);
30}
31
32void restore_processor_state(void)
33{
34	local_flush_tlb_all();
35}

 
 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
20struct swsusp_arch_regs swsusp_arch_regs_cpu0;
21
22int 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
30void save_processor_state(void)
31{
32	init_fpu(current);
33}
34
35void restore_processor_state(void)
36{
37	local_flush_tlb_all();
38}