blob: 47d08662501b7225bca6c17e4738ef0fa21f2264 [file] [log] [blame]
Gregory CLEMENT8cb2d8b2016-03-14 09:39:04 +01001#ifndef _HWBM_H
2#define _HWBM_H
3
4struct hwbm_pool {
5 /* Capacity of the pool */
6 int size;
7 /* Size of the buffers managed */
8 int frag_size;
9 /* Number of buffers currently used by this pool */
10 int buf_num;
11 /* constructor called during alocation */
12 int (*construct)(struct hwbm_pool *bm_pool, void *buf);
13 /* protect acces to the buffer counter*/
14 spinlock_t lock;
15 /* private data */
16 void *priv;
17};
18#ifdef CONFIG_HWBM
19void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf);
20int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp);
21int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp);
22#else
23void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {}
24int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; }
25int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp)
26{ return 0; }
27#endif /* CONFIG_HWBM */
28#endif /* _HWBM_H */