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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 | ||
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19 | #include <asm/memblock.h> |
20 | ||
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21 | #define MAX_MEMBLOCK_REGIONS 128 |
22 | ||
e3239ff9 | 23 | struct memblock_region { |
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24 | u64 base; |
25 | u64 size; | |
26 | }; | |
27 | ||
e3239ff9 | 28 | struct memblock_type { |
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29 | unsigned long cnt; |
30 | u64 size; | |
e3239ff9 | 31 | struct memblock_region regions[MAX_MEMBLOCK_REGIONS+1]; |
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32 | }; |
33 | ||
34 | struct memblock { | |
35 | unsigned long debug; | |
36 | u64 rmo_size; | |
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37 | struct memblock_type memory; |
38 | struct memblock_type reserved; | |
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39 | }; |
40 | ||
41 | extern struct memblock memblock; | |
42 | ||
43 | extern void __init memblock_init(void); | |
44 | extern void __init memblock_analyze(void); | |
45 | extern long memblock_add(u64 base, u64 size); | |
46 | extern long memblock_remove(u64 base, u64 size); | |
47 | extern long __init memblock_free(u64 base, u64 size); | |
48 | extern long __init memblock_reserve(u64 base, u64 size); | |
49 | extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid, | |
50 | u64 (*nid_range)(u64, u64, int *)); | |
51 | extern u64 __init memblock_alloc(u64 size, u64 align); | |
52 | extern u64 __init memblock_alloc_base(u64 size, | |
53 | u64, u64 max_addr); | |
54 | extern u64 __init __memblock_alloc_base(u64 size, | |
55 | u64 align, u64 max_addr); | |
56 | extern u64 __init memblock_phys_mem_size(void); | |
57 | extern u64 memblock_end_of_DRAM(void); | |
58 | extern void __init memblock_enforce_memory_limit(u64 memory_limit); | |
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59 | extern int memblock_is_memory(u64 addr); |
60 | extern int memblock_is_region_memory(u64 base, u64 size); | |
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61 | extern int __init memblock_is_reserved(u64 addr); |
62 | extern int memblock_is_region_reserved(u64 base, u64 size); | |
e3239ff9 | 63 | extern int memblock_find(struct memblock_region *res); |
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64 | |
65 | extern void memblock_dump_all(void); | |
66 | ||
67 | static inline u64 | |
e3239ff9 | 68 | memblock_size_bytes(struct memblock_type *type, unsigned long region_nr) |
95f72d1e | 69 | { |
e3239ff9 | 70 | return type->regions[region_nr].size; |
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71 | } |
72 | static inline u64 | |
e3239ff9 | 73 | memblock_size_pages(struct memblock_type *type, unsigned long region_nr) |
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74 | { |
75 | return memblock_size_bytes(type, region_nr) >> PAGE_SHIFT; | |
76 | } | |
77 | static inline u64 | |
e3239ff9 | 78 | memblock_start_pfn(struct memblock_type *type, unsigned long region_nr) |
95f72d1e | 79 | { |
e3239ff9 | 80 | return type->regions[region_nr].base >> PAGE_SHIFT; |
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81 | } |
82 | static inline u64 | |
e3239ff9 | 83 | memblock_end_pfn(struct memblock_type *type, unsigned long region_nr) |
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84 | { |
85 | return memblock_start_pfn(type, region_nr) + | |
86 | memblock_size_pages(type, region_nr); | |
87 | } | |
88 | ||
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89 | #endif /* __KERNEL__ */ |
90 | ||
91 | #endif /* _LINUX_MEMBLOCK_H */ |