mirror of https://gitee.com/openkylin/linux.git
21 lines
607 B
C
21 lines
607 B
C
#ifndef _ASM_POWERPC_SPARSEMEM_H
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#define _ASM_POWERPC_SPARSEMEM_H 1
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#ifdef CONFIG_SPARSEMEM
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/*
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* SECTION_SIZE_BITS 2^N: how big each section will be
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* MAX_PHYSADDR_BITS 2^N: how much physical address space we have
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* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
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*/
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#define SECTION_SIZE_BITS 24
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#define MAX_PHYSADDR_BITS 44
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#define MAX_PHYSMEM_BITS 44
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#ifdef CONFIG_MEMORY_HOTPLUG
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extern void create_section_mapping(unsigned long start, unsigned long end);
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#endif /* CONFIG_MEMORY_HOTPLUG */
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#endif /* CONFIG_SPARSEMEM */
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#endif /* _ASM_POWERPC_SPARSEMEM_H */
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