| Kumar Gala | 4ed6552 | 2008-02-27 21:51:47 -0600 | [diff] [blame] | 1 | #ifndef _LINUX_LMB_H |
| 2 | #define _LINUX_LMB_H |
| 3 | #ifdef __KERNEL__ |
| 4 | |
| 5 | #include <asm/types.h> |
| 6 | /* |
| 7 | * Logical memory blocks. |
| 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 | #define MAX_LMB_REGIONS 8 |
| 18 | |
| 19 | struct lmb_property { |
| 20 | ulong base; |
| 21 | ulong size; |
| 22 | }; |
| 23 | |
| 24 | struct lmb_region { |
| 25 | unsigned long cnt; |
| 26 | ulong size; |
| 27 | struct lmb_property region[MAX_LMB_REGIONS+1]; |
| 28 | }; |
| 29 | |
| 30 | struct lmb { |
| 31 | struct lmb_region memory; |
| 32 | struct lmb_region reserved; |
| 33 | }; |
| 34 | |
| 35 | extern struct lmb lmb; |
| 36 | |
| 37 | extern void lmb_init(struct lmb *lmb); |
| 38 | extern long lmb_add(struct lmb *lmb, ulong base, ulong size); |
| 39 | extern long lmb_reserve(struct lmb *lmb, ulong base, ulong size); |
| 40 | extern ulong lmb_alloc(struct lmb *lmb, ulong size, ulong align); |
| 41 | extern ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr); |
| 42 | extern ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr); |
| 43 | extern int lmb_is_reserved(struct lmb *lmb, ulong addr); |
| 44 | |
| 45 | extern void lmb_dump_all(struct lmb *lmb); |
| 46 | |
| 47 | static inline ulong |
| 48 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) |
| 49 | { |
| 50 | return type->region[region_nr].size; |
| 51 | } |
| 52 | #endif /* __KERNEL__ */ |
| 53 | |
| 54 | #endif /* _LINUX_LMB_H */ |