5 * Definitions for talking to the Open Firmware PROM on
6 * Power Macintosh computers.
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
21 #define LMB_ALLOC_ANYWHERE 0
31 struct lmb_property region[MAX_LMB_REGIONS+1];
36 unsigned long rmo_size;
37 struct lmb_region memory;
38 struct lmb_region reserved;
41 extern struct lmb lmb;
43 extern void __init lmb_init(void);
44 extern void __init lmb_analyze(void);
45 extern long __init lmb_add(unsigned long, unsigned long);
46 extern long __init lmb_reserve(unsigned long, unsigned long);
47 extern unsigned long __init lmb_alloc(unsigned long, unsigned long);
48 extern unsigned long __init lmb_alloc_base(unsigned long, unsigned long,
50 extern unsigned long __init lmb_phys_mem_size(void);
51 extern unsigned long __init lmb_end_of_DRAM(void);
52 extern unsigned long __init lmb_abs_to_phys(unsigned long);
53 extern void __init lmb_enforce_memory_limit(void);
55 extern void lmb_dump_all(void);
57 extern unsigned long io_hole_start;
59 static inline unsigned long
60 lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
62 return type->region[region_nr].size;
64 static inline unsigned long
65 lmb_size_pages(struct lmb_region *type, unsigned long region_nr)
67 return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT;
69 static inline unsigned long
70 lmb_start_pfn(struct lmb_region *type, unsigned long region_nr)
72 return type->region[region_nr].base >> PAGE_SHIFT;
74 static inline unsigned long
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);
81 #endif /* _PPC64_LMB_H */