1DMA_POOL_ALLOC(9) Memory Management in Linux DMA_POOL_ALLOC(9)
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6 dma_pool_alloc - get a block of consistent memory
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9 void * dma_pool_alloc(struct dma_pool * pool, gfp_t mem_flags,
10 dma_addr_t * handle);
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13 pool
14 dma pool that will produce the block
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16 mem_flags
17 GFP_* bitmask
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19 handle
20 pointer to dma address of block
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23 This returns the kernel virtual address of a currently unused block,
24 and reports its dma address through the handle. If such a memory block
25 can't be allocated, NULL is returned.
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28Kernel Hackers Manual 2.6. November 2011 DMA_POOL_ALLOC(9)