git://bbs.cooldavid.org / net-next-2.6.git / blame
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|---|---|---|
| d9b2b2a2 DM |
1 | #ifndef _LINUX_LMB_H |
| 2 | #define _LINUX_LMB_H | |
| 3 | #ifdef __KERNEL__ | |
| 4 | ||
| 5 | /* | |
| 6 | * Logical memory blocks. | |
| 7 | * | |
| 8 | * Copyright (C) 2001 Peter Bergner, IBM Corp. | |
| 9 | * | |
| 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. | |
| 14 | */ | |
| 15 | ||
| 16 | #include <linux/init.h> | |
| 17 | #include <linux/mm.h> | |
| 18 | ||
| 19 | #define MAX_LMB_REGIONS 128 | |
| 20 | ||
| 21 | struct lmb_property { | |
| e5f27095 BB |
22 | u64 base; |
| 23 | u64 size; | |
| d9b2b2a2 DM |
24 | }; |
| 25 | ||
| 26 | struct lmb_region { | |
| 27 | unsigned long cnt; | |
| e5f27095 | 28 | u64 size; |
| d9b2b2a2 DM |
29 | struct lmb_property region[MAX_LMB_REGIONS+1]; |
| 30 | }; | |
| 31 | ||
| 32 | struct lmb { | |
| 33 | unsigned long debug; | |
| e5f27095 | 34 | u64 rmo_size; |
| d9b2b2a2 DM |
35 | struct lmb_region memory; |
| 36 | struct lmb_region reserved; | |
| 37 | }; | |
| 38 | ||
| 39 | extern struct lmb lmb; | |
| 40 | ||
| 41 | extern void __init lmb_init(void); | |
| 42 | extern void __init lmb_analyze(void); | |
| 98d5c21c BP |
43 | extern long lmb_add(u64 base, u64 size); |
| 44 | extern long lmb_remove(u64 base, u64 size); | |
| e5f27095 | 45 | extern long __init lmb_reserve(u64 base, u64 size); |
| c50f68c8 DM |
46 | extern u64 __init lmb_alloc_nid(u64 size, u64 align, int nid, |
| 47 | u64 (*nid_range)(u64, u64, int *)); | |
| e5f27095 BB |
48 | extern u64 __init lmb_alloc(u64 size, u64 align); |
| 49 | extern u64 __init lmb_alloc_base(u64 size, | |
| 50 | u64, u64 max_addr); | |
| 51 | extern u64 __init __lmb_alloc_base(u64 size, | |
| 52 | u64 align, u64 max_addr); | |
| 53 | extern u64 __init lmb_phys_mem_size(void); | |
| 1a37f184 | 54 | extern u64 lmb_end_of_DRAM(void); |
| e5f27095 BB |
55 | extern void __init lmb_enforce_memory_limit(u64 memory_limit); |
| 56 | extern int __init lmb_is_reserved(u64 addr); | |
| c5df7f77 | 57 | extern int lmb_is_region_reserved(u64 base, u64 size); |
| 9d88a2eb | 58 | extern int lmb_find(struct lmb_property *res); |
| d9b2b2a2 DM |
59 | |
| 60 | extern void lmb_dump_all(void); | |
| 61 | ||
| e5f27095 | 62 | static inline u64 |
| d9b2b2a2 DM |
63 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) |
| 64 | { | |
| 65 | return type->region[region_nr].size; | |
| 66 | } | |
| e5f27095 | 67 | static inline u64 |
| d9b2b2a2 DM |
68 | lmb_size_pages(struct lmb_region *type, unsigned long region_nr) |
| 69 | { | |
| 70 | return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT; | |
| 71 | } | |
| e5f27095 | 72 | static inline u64 |
| d9b2b2a2 DM |
73 | lmb_start_pfn(struct lmb_region *type, unsigned long region_nr) |
| 74 | { | |
| 75 | return type->region[region_nr].base >> PAGE_SHIFT; | |
| 76 | } | |
| e5f27095 | 77 | static inline u64 |
| d9b2b2a2 DM |
78 | lmb_end_pfn(struct lmb_region *type, unsigned long region_nr) |
| 79 | { | |
| 80 | return lmb_start_pfn(type, region_nr) + | |
| 81 | lmb_size_pages(type, region_nr); | |
| 82 | } | |
| 83 | ||
| 84 | #include <asm/lmb.h> | |
| 85 | ||
| 86 | #endif /* __KERNEL__ */ | |
| 87 | ||
| 88 | #endif /* _LINUX_LMB_H */ |