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(u64 size, u64 align);
46 extern u64 __init lmb_alloc_base(u64 size,
48 extern u64 __init __lmb_alloc_base(u64 size,
49 u64 align, u64 max_addr);
50 extern u64 __init lmb_phys_mem_size(void);
51 extern u64 __init lmb_end_of_DRAM(void);
52 extern void __init lmb_enforce_memory_limit(u64 memory_limit);
53 extern int __init lmb_is_reserved(u64 addr);
55 extern void lmb_dump_all(void);
58 lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
60 return type->region[region_nr].size;
63 lmb_size_pages(struct lmb_region *type, unsigned long region_nr)
65 return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT;
68 lmb_start_pfn(struct lmb_region *type, unsigned long region_nr)
70 return type->region[region_nr].base >> PAGE_SHIFT;
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);
81 #endif /* __KERNEL__ */
83 #endif /* _LINUX_LMB_H */