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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 | ||
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 */ |