1#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 */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _HWBM_H
 3#define _HWBM_H
 4
 5struct hwbm_pool {
 6	/* Capacity of the pool */
 7	int size;
 8	/* Size of the buffers managed */
 9	int frag_size;
10	/* Number of buffers currently used by this pool */
11	int buf_num;
12	/* constructor called during alocation */
13	int (*construct)(struct hwbm_pool *bm_pool, void *buf);
14	/* protect acces to the buffer counter*/
15	struct mutex buf_lock;
16	/* private data */
17	void *priv;
18};
19#ifdef CONFIG_HWBM
20void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf);
21int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp);
22int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num);
23#else
24static inline void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {}
25
26static inline int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp)
27{ return 0; }
28
29static inline int hwbm_pool_add(struct hwbm_pool *bm_pool,
30				unsigned int buf_num)
31{ return 0; }
32#endif /* CONFIG_HWBM */
33#endif /* _HWBM_H */