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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/lmb.h
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 __init
lmb_add(u64 base
, u64 size
);
44 extern long __init
lmb_reserve(u64 base
, u64 size
);
45 extern u64 __init
lmb_alloc_nid(u64 size
, u64 align
, int nid
,
46 u64 (*nid_range
)(u64
, u64
, int *));
47 extern u64 __init
lmb_alloc(u64 size
, u64 align
);
48 extern u64 __init
lmb_alloc_base(u64 size
,
50 extern u64 __init
__lmb_alloc_base(u64 size
,
51 u64 align
, u64 max_addr
);
52 extern u64 __init
lmb_phys_mem_size(void);
53 extern u64 __init
lmb_end_of_DRAM(void);
54 extern void __init
lmb_enforce_memory_limit(u64 memory_limit
);
55 extern int __init
lmb_is_reserved(u64 addr
);
57 extern void lmb_dump_all(void);
60 lmb_size_bytes(struct lmb_region
*type
, unsigned long region_nr
)
62 return type
->region
[region_nr
].size
;
65 lmb_size_pages(struct lmb_region
*type
, unsigned long region_nr
)
67 return lmb_size_bytes(type
, region_nr
) >> PAGE_SHIFT
;
70 lmb_start_pfn(struct lmb_region
*type
, unsigned long region_nr
)
72 return type
->region
[region_nr
].base
>> PAGE_SHIFT
;
75 lmb_end_pfn(struct lmb_region
*type
, unsigned long region_nr
)
77 return lmb_start_pfn(type
, region_nr
) +
78 lmb_size_pages(type
, region_nr
);
83 #endif /* __KERNEL__ */
85 #endif /* _LINUX_LMB_H */