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1616 | serge | 1 | /* |
2 | * include/linux/dmapool.h |
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3 | * |
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4 | * Allocation pools for DMAable (coherent) memory. |
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5 | * |
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6082 | serge | 6 | * This file is licensed under the terms of the GNU General Public |
7 | * License version 2. This program is licensed "as is" without any |
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1616 | serge | 8 | * warranty of any kind, whether express or implied. |
9 | */ |
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10 | |||
11 | #ifndef LINUX_DMAPOOL_H |
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12 | #define LINUX_DMAPOOL_H |
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13 | |||
14 | struct dma_pool *dma_pool_create(const char *name, struct device *dev, |
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15 | size_t size, size_t align, size_t allocation); |
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16 | |||
17 | void dma_pool_destroy(struct dma_pool *pool); |
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18 | |||
19 | void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags, |
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20 | dma_addr_t *handle); |
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21 | |||
6082 | serge | 22 | static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags, |
23 | dma_addr_t *handle) |
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24 | { |
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25 | return dma_pool_alloc(pool, mem_flags | __GFP_ZERO, handle); |
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26 | } |
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27 | |||
1616 | serge | 28 | void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t addr); |
29 | |||
3031 | serge | 30 | /* |
31 | * Managed DMA pool |
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32 | */ |
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33 | struct dma_pool *dmam_pool_create(const char *name, struct device *dev, |
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34 | size_t size, size_t align, size_t allocation); |
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35 | void dmam_pool_destroy(struct dma_pool *pool); |
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1616 | serge | 36 | |
37 | #endif |
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38 |