DMAM_ALLOC_COHERENT(9) Device drivers infrastructure DMAM_ALLOC_COHERENT(9)NAMEdmam_alloc_coherent - Managed dma_alloc_coherentSYNOPSISvoid * dmam_alloc_coherent(struct device * dev, size_t size, dma_addr_t * dma_handle, gfp_t gfp);ARGUMENTSdev Device to allocate coherent memory for size Size of allocation dma_handle Out argument for allocated DMA handle gfp Allocation flagsDESCRIPTIONManaged dma_alloc_coherent. Memory allocated using this function will be automatically released on driver detach.RETURNSPointer to allocated memory on success, NULL on failure.COPYRIGHTKernel Hackers Manual 3.10 June 2014 DMAM_ALLOC_COHERENT(9)