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