Commit | Line | Data |
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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; | |
21 | void *start; | |
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 | ||
40 | typedef struct rh_stats_t { | |
41 | void *start; | |
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 */ | |
60 | extern int rh_attach_region(rh_info_t * info, void *start, int size); | |
61 | ||
62 | /* Detach a free region */ | |
63 | extern void *rh_detach_region(rh_info_t * info, void *start, int size); | |
64 | ||
5e980823 LY |
65 | /* Allocate the given size from the remote heap (with alignment) */ |
66 | extern void *rh_alloc_align(rh_info_t * info, int size, int alignment, | |
67 | const char *owner); | |
68 | ||
1da177e4 LT |
69 | /* Allocate the given size from the remote heap */ |
70 | extern void *rh_alloc(rh_info_t * info, int size, const char *owner); | |
71 | ||
72 | /* Allocate the given size from the given address */ | |
73 | extern void *rh_alloc_fixed(rh_info_t * info, void *start, int size, | |
74 | const char *owner); | |
75 | ||
76 | /* Free the allocated area */ | |
77 | extern int rh_free(rh_info_t * info, void *start); | |
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 */ | |
87 | extern int rh_set_owner(rh_info_t * info, void *start, const char *owner); | |
88 | ||
89 | #endif /* __ASM_PPC_RHEAP_H__ */ |