| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_IA64_SPARSEMEM_H |
| 3 | #define _ASM_IA64_SPARSEMEM_H |
| 4 | |
| 5 | #ifdef CONFIG_SPARSEMEM |
| 6 | /* |
| 7 | * SECTION_SIZE_BITS 2^N: how big each section will be |
| 8 | * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space |
| 9 | */ |
| 10 | |
| 11 | #define SECTION_SIZE_BITS (30) |
| 12 | #define MAX_PHYSMEM_BITS (50) |
| 13 | #ifdef CONFIG_FORCE_MAX_ZONEORDER |
| 14 | #if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) |
| 15 | #undef SECTION_SIZE_BITS |
| 16 | #define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) |
| 17 | #endif |
| 18 | #endif |
| 19 | |
| 20 | #endif /* CONFIG_SPARSEMEM */ |
| 21 | #endif /* _ASM_IA64_SPARSEMEM_H */ |