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145e664231
Provide the architecture specific implementation for SPARSEMEM for PPC64 systems. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> (in part) Signed-off-by: Martin Bligh <mbligh@aracnet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 lines
460 B
C
17 lines
460 B
C
#ifndef _ASM_PPC64_SPARSEMEM_H
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#define _ASM_PPC64_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 38
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#define MAX_PHYSMEM_BITS 36
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#endif /* CONFIG_SPARSEMEM */
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#endif /* _ASM_PPC64_SPARSEMEM_H */
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