projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| f30c2269 | 2 | * include/asm-ppc/rheap.h |
| 1da177e4 LT |
3 | * |
| 4 | * Header file for the implementation of a remote heap. | |
| 5 | * | |
| 6 | * Author: Pantelis Antoniou <panto@intracom.gr> | |
| 7 | * | |
| 8 | * 2004 (c) INTRACOM S.A. Greece. This file is licensed under | |
| 9 | * the terms of the GNU General Public License version 2. This program | |
| 10 | * is licensed "as is" without any warranty of any kind, whether express | |
| 11 | * or implied. | |
| 12 | */ | |
| 13 | ||
| 14 | #ifndef __ASM_PPC_RHEAP_H__ | |
| 15 | #define __ASM_PPC_RHEAP_H__ | |
| 16 | ||
| 17 | #include <linux/list.h> | |
| 18 | ||
| 19 | typedef struct _rh_block { | |
| 20 | struct list_head list; | |
| 4c35630c | 21 | unsigned long start; |
| 1da177e4 LT |
22 | int size; |
| 23 | const char *owner; | |
| 24 | } rh_block_t; | |
| 25 | ||
| 26 | typedef struct _rh_info { | |
| 27 | unsigned int alignment; | |
| 28 | int max_blocks; | |
| 29 | int empty_slots; | |
| 30 | rh_block_t *block; | |
| 31 | struct list_head empty_list; | |
| 32 | struct list_head free_list; | |
| 33 | struct list_head taken_list; | |
| 34 | unsigned int flags; | |
| 35 | } rh_info_t; | |
| 36 | ||
| 37 | #define RHIF_STATIC_INFO 0x1 | |
| 38 | #define RHIF_STATIC_BLOCK 0x2 | |
| 39 | ||
| 4c35630c TT |
40 | typedef struct _rh_stats { |
| 41 | unsigned long start; | |
| 1da177e4 LT |
42 | int size; |
| 43 | const char *owner; | |
| 44 | } rh_stats_t; | |
| 45 | ||
| 46 | #define RHGS_FREE 0 | |
| 47 | #define RHGS_TAKEN 1 | |
| 48 | ||
| 49 | /* Create a remote heap dynamically */ | |
| 50 | extern rh_info_t *rh_create(unsigned int alignment); | |
| 51 | ||
| 52 | /* Destroy a remote heap, created by rh_create() */ | |
| 53 | extern void rh_destroy(rh_info_t * info); | |
| 54 | ||
| 55 | /* Initialize in place a remote info block */ | |
| 56 | extern void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks, | |
| 57 | rh_block_t * block); | |
| 58 | ||
| 59 | /* Attach a free region to manage */ | |
| 4c35630c | 60 | extern int rh_attach_region(rh_info_t * info, unsigned long start, int size); |
| 1da177e4 LT |
61 | |
| 62 | /* Detach a free region */ | |
| 4c35630c | 63 | extern unsigned long rh_detach_region(rh_info_t * info, unsigned long start, int size); |
| 1da177e4 | 64 | |
| 5e980823 | 65 | /* Allocate the given size from the remote heap (with alignment) */ |
| 4c35630c | 66 | extern unsigned long rh_alloc_align(rh_info_t * info, int size, int alignment, |
| 5e980823 LY |
67 | const char *owner); |
| 68 | ||
| 1da177e4 | 69 | /* Allocate the given size from the remote heap */ |
| 4c35630c | 70 | extern unsigned long rh_alloc(rh_info_t * info, int size, const char *owner); |
| 1da177e4 LT |
71 | |
| 72 | /* Allocate the given size from the given address */ | |
| 4c35630c | 73 | extern unsigned long rh_alloc_fixed(rh_info_t * info, unsigned long start, int size, |
| 1da177e4 LT |
74 | const char *owner); |
| 75 | ||
| 76 | /* Free the allocated area */ | |
| 4c35630c | 77 | extern int rh_free(rh_info_t * info, unsigned long start); |
| 1da177e4 LT |
78 | |
| 79 | /* Get stats for debugging purposes */ | |
| 80 | extern int rh_get_stats(rh_info_t * info, int what, int max_stats, | |
| 81 | rh_stats_t * stats); | |
| 82 | ||
| 83 | /* Simple dump of remote heap info */ | |
| 84 | extern void rh_dump(rh_info_t * info); | |
| 85 | ||
| 86 | /* Set owner of taken block */ | |
| 4c35630c | 87 | extern int rh_set_owner(rh_info_t * info, unsigned long start, const char *owner); |
| 1da177e4 LT |
88 | |
| 89 | #endif /* __ASM_PPC_RHEAP_H__ */ |