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24 lines
660 B
24 lines
660 B
#ifndef ASMARM_SPARSEMEM_H
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#define ASMARM_SPARSEMEM_H
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#include <asm/memory.h>
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/*
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* Two definitions are required for sparsemem:
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*
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* MAX_PHYSMEM_BITS: The number of physical address bits required
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* to address the last byte of memory.
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*
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* SECTION_SIZE_BITS: The number of physical address bits to cover
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* the maximum amount of memory in a section.
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*
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* Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
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* then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
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*
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* Define these in your mach/memory.h.
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*/
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#if !defined(SECTION_SIZE_BITS) || !defined(MAX_PHYSMEM_BITS)
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#error Sparsemem is not supported on this platform
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#endif
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#endif
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