| 1 |
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| 2 | #ifndef ASMARM_SPARSEMEM_H
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| 3 | #define ASMARM_SPARSEMEM_H
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| 4 |
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| 5 | #include <asm/page.h>
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| 6 |
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| 7 | |
| 8 | * Two definitions are required for sparsemem:
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| 9 | *
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| 10 | * MAX_PHYSMEM_BITS: The number of physical address bits required
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| 11 | * to address the last byte of memory.
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| 12 | *
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| 13 | * SECTION_SIZE_BITS: The number of physical address bits to cover
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| 14 | * the maximum amount of memory in a section.
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| 15 | *
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| 16 | * Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
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| 17 | * then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
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| 18 | *
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| 19 | * These can be overridden in your mach/memory.h.
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| 20 |
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| 21 | #if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
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| 22 | #define MAX_PHYSMEM_BITS 36
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| 23 | #define SECTION_SIZE_BITS 28
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| 24 | #endif
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| 25 |
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| 26 | #endif
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