2 * include/asm-ppc/rheap.h
4 * Header file for the implementation of a remote heap.
6 * Author: Pantelis Antoniou <panto@intracom.gr>
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
14 #ifndef __ASM_PPC_RHEAP_H__
15 #define __ASM_PPC_RHEAP_H__
17 #include <linux/list.h>
19 typedef struct _rh_block
{
20 struct list_head list
;
26 typedef struct _rh_info
{
27 unsigned int alignment
;
31 struct list_head empty_list
;
32 struct list_head free_list
;
33 struct list_head taken_list
;
37 #define RHIF_STATIC_INFO 0x1
38 #define RHIF_STATIC_BLOCK 0x2
40 typedef struct _rh_stats
{
49 /* Create a remote heap dynamically */
50 extern rh_info_t
*rh_create(unsigned int alignment
);
52 /* Destroy a remote heap, created by rh_create() */
53 extern void rh_destroy(rh_info_t
* info
);
55 /* Initialize in place a remote info block */
56 extern void rh_init(rh_info_t
* info
, unsigned int alignment
, int max_blocks
,
59 /* Attach a free region to manage */
60 extern int rh_attach_region(rh_info_t
* info
, unsigned long start
, int size
);
62 /* Detach a free region */
63 extern unsigned long rh_detach_region(rh_info_t
* info
, unsigned long start
, int size
);
65 /* Allocate the given size from the remote heap (with alignment) */
66 extern unsigned long rh_alloc_align(rh_info_t
* info
, int size
, int alignment
,
69 /* Allocate the given size from the remote heap */
70 extern unsigned long rh_alloc(rh_info_t
* info
, int size
, const char *owner
);
72 /* Allocate the given size from the given address */
73 extern unsigned long rh_alloc_fixed(rh_info_t
* info
, unsigned long start
, int size
,
76 /* Free the allocated area */
77 extern int rh_free(rh_info_t
* info
, unsigned long start
);
79 /* Get stats for debugging purposes */
80 extern int rh_get_stats(rh_info_t
* info
, int what
, int max_stats
,
83 /* Simple dump of remote heap info */
84 extern void rh_dump(rh_info_t
* info
);
86 /* Simple dump of remote info block */
87 void rh_dump_blk(rh_info_t
*info
, rh_block_t
*blk
);
89 /* Set owner of taken block */
90 extern int rh_set_owner(rh_info_t
* info
, unsigned long start
, const char *owner
);
92 #endif /* __ASM_PPC_RHEAP_H__ */