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1be7d993 BP |
1 | #ifndef _ASM_IA64_SPARSEMEM_H |
2 | #define _ASM_IA64_SPARSEMEM_H | |
3 | ||
4 | #ifdef CONFIG_SPARSEMEM | |
5 | /* | |
6 | * SECTION_SIZE_BITS 2^N: how big each section will be | |
7 | * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space | |
8 | */ | |
9 | ||
10 | #define SECTION_SIZE_BITS (30) | |
11 | #define MAX_PHYSMEM_BITS (50) | |
12 | #ifdef CONFIG_FORCE_MAX_ZONEORDER | |
13 | #if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) | |
14 | #undef SECTION_SIZE_BITS | |
15 | #define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) | |
16 | #endif | |
17 | #endif | |
18 | ||
19 | #endif /* CONFIG_SPARSEMEM */ | |
20 | #endif /* _ASM_IA64_SPARSEMEM_H */ |