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