5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
27 lines
716 B
C
27 lines
716 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#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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* These can be overridden in your mach/memory.h.
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*/
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#if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
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#define MAX_PHYSMEM_BITS 36
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#define SECTION_SIZE_BITS 28
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#endif
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#endif
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