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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _HWBM_H
- #define _HWBM_H
- struct hwbm_pool {
- /* Capacity of the pool */
- int size;
- /* Size of the buffers managed */
- int frag_size;
- /* Number of buffers currently used by this pool */
- int buf_num;
- /* constructor called during alocation */
- int (*construct)(struct hwbm_pool *bm_pool, void *buf);
- /* protect acces to the buffer counter*/
- spinlock_t lock;
- /* private data */
- void *priv;
- };
- #ifdef CONFIG_HWBM
- void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf);
- int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp);
- int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp);
- #else
- void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {}
- int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; }
- int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp)
- { return 0; }
- #endif /* CONFIG_HWBM */
- #endif /* _HWBM_H */
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