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4ed6552f KG |
1 | #ifndef _LINUX_LMB_H |
2 | #define _LINUX_LMB_H | |
3 | #ifdef __KERNEL__ | |
4 | ||
5 | #include <asm/types.h> | |
6 | /* | |
7 | * Logical memory blocks. | |
8 | * | |
9 | * Copyright (C) 2001 Peter Bergner, IBM Corp. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | */ | |
16 | ||
17 | #define MAX_LMB_REGIONS 8 | |
18 | ||
19 | struct lmb_property { | |
20 | ulong base; | |
21 | ulong size; | |
22 | }; | |
23 | ||
24 | struct lmb_region { | |
25 | unsigned long cnt; | |
26 | ulong size; | |
27 | struct lmb_property region[MAX_LMB_REGIONS+1]; | |
28 | }; | |
29 | ||
30 | struct lmb { | |
31 | struct lmb_region memory; | |
32 | struct lmb_region reserved; | |
33 | }; | |
34 | ||
35 | extern struct lmb lmb; | |
36 | ||
37 | extern void lmb_init(struct lmb *lmb); | |
38 | extern long lmb_add(struct lmb *lmb, ulong base, ulong size); | |
39 | extern long lmb_reserve(struct lmb *lmb, ulong base, ulong size); | |
40 | extern ulong lmb_alloc(struct lmb *lmb, ulong size, ulong align); | |
41 | extern ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr); | |
42 | extern ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr); | |
43 | extern int lmb_is_reserved(struct lmb *lmb, ulong addr); | |
44 | ||
45 | extern void lmb_dump_all(struct lmb *lmb); | |
46 | ||
47 | static inline ulong | |
48 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) | |
49 | { | |
50 | return type->region[region_nr].size; | |
51 | } | |
52 | #endif /* __KERNEL__ */ | |
53 | ||
54 | #endif /* _LINUX_LMB_H */ |