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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.

RETURNS

Pointer to allocated memory on success, NULL on failure.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16