| /* 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 */ |