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Kumar Gala4ed65522008-02-27 21:51:47 -06001#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
19struct lmb_property {
20 ulong base;
21 ulong size;
22};
23
24struct lmb_region {
25 unsigned long cnt;
26 ulong size;
27 struct lmb_property region[MAX_LMB_REGIONS+1];
28};
29
30struct lmb {
31 struct lmb_region memory;
32 struct lmb_region reserved;
33};
34
35extern struct lmb lmb;
36
37extern void lmb_init(struct lmb *lmb);
38extern long lmb_add(struct lmb *lmb, ulong base, ulong size);
39extern long lmb_reserve(struct lmb *lmb, ulong base, ulong size);
40extern ulong lmb_alloc(struct lmb *lmb, ulong size, ulong align);
41extern ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr);
42extern ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr);
43extern int lmb_is_reserved(struct lmb *lmb, ulong addr);
44
45extern void lmb_dump_all(struct lmb *lmb);
46
47static inline ulong
48lmb_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 */