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9b6b563c PM |
1 | #ifndef _PPC64_LMB_H |
2 | #define _PPC64_LMB_H | |
88ced031 | 3 | #ifdef __KERNEL__ |
9b6b563c PM |
4 | |
5 | /* | |
6 | * Definitions for talking to the Open Firmware PROM on | |
7 | * Power Macintosh computers. | |
8 | * | |
9 | * Copyright (C) 2001 Peter Bergner, IBM Corp. | |
10 | * | |
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. | |
15 | */ | |
16 | ||
17 | #include <linux/init.h> | |
18 | #include <asm/prom.h> | |
19 | ||
20 | #define MAX_LMB_REGIONS 128 | |
21 | ||
22 | #define LMB_ALLOC_ANYWHERE 0 | |
23 | ||
24 | struct lmb_property { | |
25 | unsigned long base; | |
26 | unsigned long size; | |
27 | }; | |
28 | ||
29 | struct lmb_region { | |
30 | unsigned long cnt; | |
31 | unsigned long size; | |
32 | struct lmb_property region[MAX_LMB_REGIONS+1]; | |
33 | }; | |
34 | ||
35 | struct lmb { | |
36 | unsigned long debug; | |
37 | unsigned long rmo_size; | |
38 | struct lmb_region memory; | |
39 | struct lmb_region reserved; | |
40 | }; | |
41 | ||
42 | extern struct lmb lmb; | |
43 | ||
44 | extern void __init lmb_init(void); | |
45 | extern void __init lmb_analyze(void); | |
46 | extern long __init lmb_add(unsigned long, unsigned long); | |
47 | extern long __init lmb_reserve(unsigned long, unsigned long); | |
48 | extern unsigned long __init lmb_alloc(unsigned long, unsigned long); | |
49 | extern unsigned long __init lmb_alloc_base(unsigned long, unsigned long, | |
50 | unsigned long); | |
51 | extern unsigned long __init lmb_phys_mem_size(void); | |
52 | extern unsigned long __init lmb_end_of_DRAM(void); | |
53 | extern unsigned long __init lmb_abs_to_phys(unsigned long); | |
54 | extern void __init lmb_enforce_memory_limit(unsigned long); | |
55 | ||
56 | extern void lmb_dump_all(void); | |
57 | ||
58 | extern unsigned long io_hole_start; | |
59 | ||
60 | static inline unsigned long | |
61 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) | |
62 | { | |
63 | return type->region[region_nr].size; | |
64 | } | |
65 | static inline unsigned long | |
66 | lmb_size_pages(struct lmb_region *type, unsigned long region_nr) | |
67 | { | |
68 | return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT; | |
69 | } | |
70 | static inline unsigned long | |
71 | lmb_start_pfn(struct lmb_region *type, unsigned long region_nr) | |
72 | { | |
73 | return type->region[region_nr].base >> PAGE_SHIFT; | |
74 | } | |
75 | static inline unsigned long | |
76 | lmb_end_pfn(struct lmb_region *type, unsigned long region_nr) | |
77 | { | |
78 | return lmb_start_pfn(type, region_nr) + | |
79 | lmb_size_pages(type, region_nr); | |
80 | } | |
81 | ||
88ced031 | 82 | #endif /* __KERNEL__ */ |
9b6b563c | 83 | #endif /* _PPC64_LMB_H */ |