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| author | Ingo Molnar <mingo@elte.hu> | 2008-11-26 08:22:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-26 08:22:50 +0100 |
| commit | 7fbb8759eff9a348efa5f352ffaa51c364837c4b (patch) | |
| tree | d40cd3f47b9f667ba94d9613270132080dcb6a1a /arch/arm/include/asm/sparsemem.h | |
| parent | 6003ab0bad4cc56f3c4fadf62a0d23a967b9c53b (diff) | |
| parent | 13d428afc007fcfcd6deeb215618f54cf9c0cae6 (diff) | |
Merge commit 'v2.6.28-rc6' into core/debug
Diffstat (limited to 'arch/arm/include/asm/sparsemem.h')
| -rw-r--r-- | arch/arm/include/asm/sparsemem.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/arm/include/asm/sparsemem.h b/arch/arm/include/asm/sparsemem.h index 277158191a0..00098615c6f 100644 --- a/arch/arm/include/asm/sparsemem.h +++ b/arch/arm/include/asm/sparsemem.h @@ -3,8 +3,22 @@ #include <asm/memory.h> -#define MAX_PHYSADDR_BITS 32 -#define MAX_PHYSMEM_BITS 32 -#define SECTION_SIZE_BITS NODE_MEM_SIZE_BITS +/* + * Two definitions are required for sparsemem: + * + * MAX_PHYSMEM_BITS: The number of physical address bits required + * to address the last byte of memory. + * + * SECTION_SIZE_BITS: The number of physical address bits to cover + * the maximum amount of memory in a section. + * + * Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000, + * then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26. + * + * Define these in your mach/memory.h. + */ +#if !defined(SECTION_SIZE_BITS) || !defined(MAX_PHYSMEM_BITS) +#error Sparsemem is not supported on this platform +#endif #endif |