projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 */ |