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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/asm-powerpc/lmb.h
6 * Definitions for talking to the Open Firmware PROM on
7 * Power Macintosh computers.
9 * Copyright (C) 2001 Peter Bergner, IBM Corp.
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.
17 #include <linux/init.h>
20 #define MAX_LMB_REGIONS 128
30 struct lmb_property region
[MAX_LMB_REGIONS
+1];
35 unsigned long rmo_size
;
36 struct lmb_region memory
;
37 struct lmb_region reserved
;
40 extern struct lmb lmb
;
42 extern void __init
lmb_init(void);
43 extern void __init
lmb_analyze(void);
44 extern long __init
lmb_add(unsigned long base
, unsigned long size
);
45 extern long __init
lmb_reserve(unsigned long base
, unsigned long size
);
46 extern unsigned long __init
lmb_alloc(unsigned long size
, unsigned long align
);
47 extern unsigned long __init
lmb_alloc_base(unsigned long size
,
48 unsigned long align
, unsigned long max_addr
);
49 extern unsigned long __init
__lmb_alloc_base(unsigned long size
,
50 unsigned long align
, unsigned long max_addr
);
51 extern unsigned long __init
lmb_phys_mem_size(void);
52 extern unsigned long __init
lmb_end_of_DRAM(void);
53 extern void __init
lmb_enforce_memory_limit(unsigned long memory_limit
);
55 extern void lmb_dump_all(void);
57 static inline unsigned long
58 lmb_size_bytes(struct lmb_region
*type
, unsigned long region_nr
)
60 return type
->region
[region_nr
].size
;
62 static inline unsigned long
63 lmb_size_pages(struct lmb_region
*type
, unsigned long region_nr
)
65 return lmb_size_bytes(type
, region_nr
) >> PAGE_SHIFT
;
67 static inline unsigned long
68 lmb_start_pfn(struct lmb_region
*type
, unsigned long region_nr
)
70 return type
->region
[region_nr
].base
>> PAGE_SHIFT
;
72 static inline unsigned long
73 lmb_end_pfn(struct lmb_region
*type
, unsigned long region_nr
)
75 return lmb_start_pfn(type
, region_nr
) +
76 lmb_size_pages(type
, region_nr
);
79 #endif /* __KERNEL__ */
80 #endif /* _PPC64_LMB_H */