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| DMAM_ALLOC_COHERENT(9) | Device drivers infrastructure | DMAM_ALLOC_COHERENT(9) |
NAME¶
dmam_alloc_coherent - Managed dma_alloc_coherent
SYNOPSIS¶
void * dmam_alloc_coherent(struct device * dev, size_t size, dma_addr_t * dma_handle, gfp_t gfp);
ARGUMENTS¶
dev
Device to allocate coherent memory for
size
Size of allocation
dma_handle
Out argument for allocated DMA handle
gfp
Allocation flags
DESCRIPTION¶
Managed dma_alloc_coherent. Memory allocated using this function will be automatically released on driver detach.
RETURN¶
Pointer to allocated memory on success, NULL on failure.
COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |