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1ac9f1f7 BB |
1 | #ifndef _ASM_POWERPC_LMB_H |
2 | #define _ASM_POWERPC_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 | ||
9b6b563c PM |
22 | struct lmb_property { |
23 | unsigned long base; | |
24 | unsigned long size; | |
25 | }; | |
26 | ||
27 | struct lmb_region { | |
28 | unsigned long cnt; | |
29 | unsigned long size; | |
30 | struct lmb_property region[MAX_LMB_REGIONS+1]; | |
31 | }; | |
32 | ||
33 | struct lmb { | |
34 | unsigned long debug; | |
35 | unsigned long rmo_size; | |
36 | struct lmb_region memory; | |
37 | struct lmb_region reserved; | |
38 | }; | |
39 | ||
40 | extern struct lmb lmb; | |
41 | ||
42 | extern void __init lmb_init(void); | |
43 | extern void __init lmb_analyze(void); | |
56b5c973 ME |
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); | |
9b6b563c PM |
51 | extern unsigned long __init lmb_phys_mem_size(void); |
52 | extern unsigned long __init lmb_end_of_DRAM(void); | |
56b5c973 | 53 | extern void __init lmb_enforce_memory_limit(unsigned long memory_limit); |
f98eeb4e | 54 | extern int __init lmb_is_reserved(unsigned long addr); |
9b6b563c PM |
55 | |
56 | extern void lmb_dump_all(void); | |
57 | ||
9b6b563c PM |
58 | static inline unsigned long |
59 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) | |
60 | { | |
61 | return type->region[region_nr].size; | |
62 | } | |
63 | static inline unsigned long | |
64 | lmb_size_pages(struct lmb_region *type, unsigned long region_nr) | |
65 | { | |
66 | return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT; | |
67 | } | |
68 | static inline unsigned long | |
69 | lmb_start_pfn(struct lmb_region *type, unsigned long region_nr) | |
70 | { | |
71 | return type->region[region_nr].base >> PAGE_SHIFT; | |
72 | } | |
73 | static inline unsigned long | |
74 | lmb_end_pfn(struct lmb_region *type, unsigned long region_nr) | |
75 | { | |
76 | return lmb_start_pfn(type, region_nr) + | |
77 | lmb_size_pages(type, region_nr); | |
78 | } | |
79 | ||
88ced031 | 80 | #endif /* __KERNEL__ */ |
1ac9f1f7 | 81 | #endif /* _ASM_POWERPC_LMB_H */ |