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23 lines
619 B
23 lines
619 B
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Suspend support specific for power. |
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* |
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* Copyright (c) 2002 Pavel Machek <[email protected]> |
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* Copyright (c) 2001 Patrick Mochel <[email protected]> |
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*/ |
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#include <linux/mm.h> |
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#include <linux/suspend.h> |
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#include <asm/page.h> |
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#include <asm/sections.h> |
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/* |
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* pfn_is_nosave - check if given pfn is in the 'nosave' section |
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*/ |
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int pfn_is_nosave(unsigned long pfn) |
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{ |
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unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; |
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unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; |
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return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); |
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}
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