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26 lines
716 B
26 lines
716 B
/* 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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