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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | #ifndef _HWBM_H |
3 | #define _HWBM_H | |
4 | ||
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5 | #include <linux/mutex.h> |
6 | ||
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7 | struct hwbm_pool { |
8 | /* Capacity of the pool */ | |
9 | int size; | |
10 | /* Size of the buffers managed */ | |
11 | int frag_size; | |
12 | /* Number of buffers currently used by this pool */ | |
13 | int buf_num; | |
14 | /* constructor called during alocation */ | |
15 | int (*construct)(struct hwbm_pool *bm_pool, void *buf); | |
16 | /* protect acces to the buffer counter*/ | |
6dcdd884 | 17 | struct mutex buf_lock; |
8cb2d8bf GC |
18 | /* private data */ |
19 | void *priv; | |
20 | }; | |
21 | #ifdef CONFIG_HWBM | |
22 | void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf); | |
23 | int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp); | |
6dcdd884 | 24 | int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num); |
8cb2d8bf | 25 | #else |
91e2e576 BDC |
26 | static inline void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} |
27 | ||
28 | static inline int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) | |
29 | { return 0; } | |
30 | ||
31 | static inline int hwbm_pool_add(struct hwbm_pool *bm_pool, | |
32 | unsigned int buf_num) | |
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33 | { return 0; } |
34 | #endif /* CONFIG_HWBM */ | |
35 | #endif /* _HWBM_H */ |