dmam_alloc_coherent (9)

void * dmam_alloc_coherent(struct device * dev, size_t size, dma_addr_t * dma_handle, gfp_t gfp);

dev

Device to allocate coherent memory for

size

Size of allocation

dma_handle

Out argument for allocated DMA handle

gfp

Allocation flags

Managed dma_alloc_coherent. Memory allocated using this function will be automatically released on driver detach.

Pointer to allocated memory on success, NULL on failure.