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 { |
Becky Bruce | 391fd93 | 2008-06-09 20:37:18 -0500 | [diff] [blame] | 20 | phys_addr_t base; |
| 21 | phys_size_t size; |
Kumar Gala | 4ed6552 | 2008-02-27 21:51:47 -0600 | [diff] [blame] | 22 | }; |
| 23 | |
| 24 | struct lmb_region { |
| 25 | unsigned long cnt; |
Becky Bruce | 391fd93 | 2008-06-09 20:37:18 -0500 | [diff] [blame] | 26 | phys_size_t size; |
Kumar Gala | 4ed6552 | 2008-02-27 21:51:47 -0600 | [diff] [blame] | 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); |
Becky Bruce | 391fd93 | 2008-06-09 20:37:18 -0500 | [diff] [blame] | 38 | extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size); |
| 39 | extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size); |
| 40 | extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align); |
| 41 | extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, |
| 42 | phys_addr_t max_addr); |
| 43 | extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, |
| 44 | phys_addr_t max_addr); |
| 45 | extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr); |
Wolfgang Denk | 730f298 | 2008-07-03 22:04:17 +0200 | [diff] [blame] | 46 | extern long lmb_free(struct lmb *lmb, u64 base, u64 size); |
Kumar Gala | 4ed6552 | 2008-02-27 21:51:47 -0600 | [diff] [blame] | 47 | |
| 48 | extern void lmb_dump_all(struct lmb *lmb); |
| 49 | |
Becky Bruce | 391fd93 | 2008-06-09 20:37:18 -0500 | [diff] [blame] | 50 | static inline phys_size_t |
Kumar Gala | 4ed6552 | 2008-02-27 21:51:47 -0600 | [diff] [blame] | 51 | lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) |
| 52 | { |
| 53 | return type->region[region_nr].size; |
| 54 | } |
| 55 | #endif /* __KERNEL__ */ |
| 56 | |
| 57 | #endif /* _LINUX_LMB_H */ |