1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
>> 2 /*
>> 3 * hibernate.c: Hibernaton support specific for sparc64.
>> 4 *
>> 5 * Copyright (C) 2013 Kirill V Tkhai (tkhai@yandex.ru)
>> 6 */
>> 7
2 #include <linux/suspend.h> 8 #include <linux/suspend.h>
3 #include <asm/tlbflush.h> !! 9 #include <linux/mm.h>
>> 10
>> 11 #include <asm/hibernate.h>
>> 12 #include <asm/visasm.h>
>> 13 #include <asm/page.h>
>> 14 #include <asm/sections.h>
>> 15 #include <asm/tlb.h>
>> 16
>> 17 struct saved_context saved_context;
4 18
5 extern int restore_image(void); !! 19 /*
>> 20 * pfn_is_nosave - check if given pfn is in the 'nosave' section
>> 21 */
6 22
7 int swsusp_arch_resume(void) !! 23 int pfn_is_nosave(unsigned long pfn)
8 { 24 {
9 /* Avoid TLB mismatch during and after !! 25 unsigned long nosave_begin_pfn = PFN_DOWN((unsigned long)&__nosave_begin);
10 local_flush_tlb_all(); !! 26 unsigned long nosave_end_pfn = PFN_DOWN((unsigned long)&__nosave_end);
11 return restore_image(); !! 27
>> 28 return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
>> 29 }
>> 30
>> 31 void save_processor_state(void)
>> 32 {
>> 33 save_and_clear_fpu();
>> 34 }
>> 35
>> 36 void restore_processor_state(void)
>> 37 {
>> 38 struct mm_struct *mm = current->active_mm;
>> 39
>> 40 tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
12 } 41 }
13 42
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