| Yinghai Lu | 95f72d1 | 2010-07-12 14:36:09 +1000 | [diff] [blame] | 1 | #ifndef _LINUX_MEMBLOCK_H |
| 2 | #define _LINUX_MEMBLOCK_H |
| 3 | #ifdef __KERNEL__ |
| 4 | |
| 5 | /* |
| 6 | * Logical memory blocks. |
| 7 | * |
| 8 | * Copyright (C) 2001 Peter Bergner, IBM Corp. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License |
| 12 | * as published by the Free Software Foundation; either version |
| 13 | * 2 of the License, or (at your option) any later version. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/mm.h> |
| 18 | |
| 19 | #define MAX_MEMBLOCK_REGIONS 128 |
| 20 | |
| 21 | struct memblock_property { |
| 22 | u64 base; |
| 23 | u64 size; |
| 24 | }; |
| 25 | |
| 26 | struct memblock_region { |
| 27 | unsigned long cnt; |
| 28 | u64 size; |
| 29 | struct memblock_property region[MAX_MEMBLOCK_REGIONS+1]; |
| 30 | }; |
| 31 | |
| 32 | struct memblock { |
| 33 | unsigned long debug; |
| 34 | u64 rmo_size; |
| 35 | struct memblock_region memory; |
| 36 | struct memblock_region reserved; |
| 37 | }; |
| 38 | |
| 39 | extern struct memblock memblock; |
| 40 | |
| 41 | extern void __init memblock_init(void); |
| 42 | extern void __init memblock_analyze(void); |
| 43 | extern long memblock_add(u64 base, u64 size); |
| 44 | extern long memblock_remove(u64 base, u64 size); |
| 45 | extern long __init memblock_free(u64 base, u64 size); |
| 46 | extern long __init memblock_reserve(u64 base, u64 size); |
| 47 | extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid, |
| 48 | u64 (*nid_range)(u64, u64, int *)); |
| 49 | extern u64 __init memblock_alloc(u64 size, u64 align); |
| 50 | extern u64 __init memblock_alloc_base(u64 size, |
| 51 | u64, u64 max_addr); |
| 52 | extern u64 __init __memblock_alloc_base(u64 size, |
| 53 | u64 align, u64 max_addr); |
| 54 | extern u64 __init memblock_phys_mem_size(void); |
| 55 | extern u64 memblock_end_of_DRAM(void); |
| 56 | extern void __init memblock_enforce_memory_limit(u64 memory_limit); |
| 57 | extern int __init memblock_is_reserved(u64 addr); |
| 58 | extern int memblock_is_region_reserved(u64 base, u64 size); |
| 59 | extern int memblock_find(struct memblock_property *res); |
| 60 | |
| 61 | extern void memblock_dump_all(void); |
| 62 | |
| 63 | static inline u64 |
| 64 | memblock_size_bytes(struct memblock_region *type, unsigned long region_nr) |
| 65 | { |
| 66 | return type->region[region_nr].size; |
| 67 | } |
| 68 | static inline u64 |
| 69 | memblock_size_pages(struct memblock_region *type, unsigned long region_nr) |
| 70 | { |
| 71 | return memblock_size_bytes(type, region_nr) >> PAGE_SHIFT; |
| 72 | } |
| 73 | static inline u64 |
| 74 | memblock_start_pfn(struct memblock_region *type, unsigned long region_nr) |
| 75 | { |
| 76 | return type->region[region_nr].base >> PAGE_SHIFT; |
| 77 | } |
| 78 | static inline u64 |
| 79 | memblock_end_pfn(struct memblock_region *type, unsigned long region_nr) |
| 80 | { |
| 81 | return memblock_start_pfn(type, region_nr) + |
| 82 | memblock_size_pages(type, region_nr); |
| 83 | } |
| 84 | |
| 85 | #include <asm/memblock.h> |
| 86 | |
| 87 | #endif /* __KERNEL__ */ |
| 88 | |
| 89 | #endif /* _LINUX_MEMBLOCK_H */ |