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1 | #ifndef _LINUX_LMB_H |
2 | #define _LINUX_LMB_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_LMB_REGIONS 128 | |
20 | ||
21 | struct lmb_property { | |
e5f27095 BB |
22 | u64 base; |
23 | u64 size; | |
d9b2b2a2 DM |
24 | }; |
25 | ||
26 | struct lmb_region { | |
27 | unsigned long cnt; | |
e5f27095 | 28 | u64 size; |
d9b2b2a2 DM |
29 | struct lmb_property region[MAX_LMB_REGIONS+1]; |
30 | }; | |
31 | ||
32 | struct lmb { | |
33 | unsigned long debug; | |
e5f27095 | 34 | u64 rmo_size; |
d9b2b2a2 DM |
35 | struct lmb_region memory; |
36 | struct lmb_region reserved; | |
37 | }; | |
38 | ||
39 | extern struct lmb lmb; | |
40 | ||
41 | extern void __init lmb_init(void); | |
42 | extern void __init lmb_analyze(void); | |
98d5c21c BP |
43 | extern long lmb_add(u64 base, u64 size); |
44 | extern long lmb_remove(u64 base, u64 size); | |
e5f27095 | 45 | extern long __init lmb_reserve(u64 base, u64 size); |
c50f68c8 DM |
46 | extern u64 __init lmb_alloc_nid(u64 size, u64 align, int nid, |
47 | u64 (*nid_range)(u64, u64, int *)); | |
e5f27095 BB |
48 | extern u64 __init lmb_alloc(u64 size, u64 align); |
49 | extern u64 __init lmb_alloc_base(u64 size, | |
50 | u64, u64 max_addr); | |
51 | extern u64 __init __lmb_alloc_base(u64 size, | |
52 | u64 align, u64 max_addr); | |
53 | extern u64 __init lmb_phys_mem_size(void); | |
54 | extern u64 __init lmb_end_of_DRAM(void); | |
55 | extern void __init lmb_enforce_memory_limit(u64 memory_limit); | |
56 | extern int __init lmb_is_reserved(u64 addr); | |
9d88a2eb | 57 | extern int lmb_find(struct lmb_property *res); |
d9b2b2a2 DM |
58 | |
59 | extern void lmb_dump_all(void); | |
60 | ||
e5f27095 | 61 | static inline u64 |
d9b2b2a2 DM |
62 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) |
63 | { | |
64 | return type->region[region_nr].size; | |
65 | } | |
e5f27095 | 66 | static inline u64 |
d9b2b2a2 DM |
67 | lmb_size_pages(struct lmb_region *type, unsigned long region_nr) |
68 | { | |
69 | return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT; | |
70 | } | |
e5f27095 | 71 | static inline u64 |
d9b2b2a2 DM |
72 | lmb_start_pfn(struct lmb_region *type, unsigned long region_nr) |
73 | { | |
74 | return type->region[region_nr].base >> PAGE_SHIFT; | |
75 | } | |
e5f27095 | 76 | static inline u64 |
d9b2b2a2 DM |
77 | lmb_end_pfn(struct lmb_region *type, unsigned long region_nr) |
78 | { | |
79 | return lmb_start_pfn(type, region_nr) + | |
80 | lmb_size_pages(type, region_nr); | |
81 | } | |
82 | ||
83 | #include <asm/lmb.h> | |
84 | ||
85 | #endif /* __KERNEL__ */ | |
86 | ||
87 | #endif /* _LINUX_LMB_H */ |