6 * Logical memory blocks.
8 * Copyright (C) 2001 Peter Bergner, IBM Corp.
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.
16 #include <linux/init.h>
19 #define MAX_LMB_REGIONS 128
29 struct lmb_property region
[MAX_LMB_REGIONS
+1];
35 struct lmb_region memory
;
36 struct lmb_region reserved
;
39 extern struct lmb lmb
;
41 extern void __init
lmb_init(void);
42 extern void __init
lmb_analyze(void);
43 extern long lmb_add(u64 base
, u64 size
);
44 extern long lmb_remove(u64 base
, u64 size
);
45 extern long __init
lmb_free(u64 base
, u64 size
);
46 extern long __init
lmb_reserve(u64 base
, u64 size
);
47 extern u64 __init
lmb_alloc_nid(u64 size
, u64 align
, int nid
,
48 u64 (*nid_range
)(u64
, u64
, int *));
49 extern u64 __init
lmb_alloc(u64 size
, u64 align
);
50 extern u64 __init
lmb_alloc_base(u64 size
,
52 extern u64 __init
__lmb_alloc_base(u64 size
,
53 u64 align
, u64 max_addr
);
54 extern u64 __init
lmb_phys_mem_size(void);
55 extern u64
lmb_end_of_DRAM(void);
56 extern void __init
lmb_enforce_memory_limit(u64 memory_limit
);
57 extern int __init
lmb_is_reserved(u64 addr
);
58 extern int lmb_is_region_reserved(u64 base
, u64 size
);
59 extern int lmb_find(struct lmb_property
*res
);
61 extern void lmb_dump_all(void);
64 lmb_size_bytes(struct lmb_region
*type
, unsigned long region_nr
)
66 return type
->region
[region_nr
].size
;
69 lmb_size_pages(struct lmb_region
*type
, unsigned long region_nr
)
71 return lmb_size_bytes(type
, region_nr
) >> PAGE_SHIFT
;
74 lmb_start_pfn(struct lmb_region
*type
, unsigned long region_nr
)
76 return type
->region
[region_nr
].base
>> PAGE_SHIFT
;
79 lmb_end_pfn(struct lmb_region
*type
, unsigned long region_nr
)
81 return lmb_start_pfn(type
, region_nr
) +
82 lmb_size_pages(type
, region_nr
);
87 #endif /* __KERNEL__ */
89 #endif /* _LINUX_LMB_H */
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