DMA_ALLOC_FROM_COHER(9) Device drivers infrastructure DMA_ALLOC_FROM_COHER(9)

NAME dma_alloc_from_coherent - try to allocate memory from the per-device coherent area

SYNOPSIS int dma_alloc_from_coherent(struct device * dev, ssize_t size, dma_addr_t * dma_handle, void ** ret);

ARGUMENTS dev device from which we allocate memory

size size of requested memory area

dma_handle This will be filled with the correct dma handle

ret This pointer will be filled with the virtual address to allocated area.

DESCRIPTION This function should be only called from per-arch dma_alloc_coherent to support allocation from per-device coherent memory pools.

Returns 0 if dma_alloc_coherent should continue with allocating from generic memory areas, or !0 if dma_alloc_coherent should return ret.

COPYRIGHT Kernel Hackers Manual 2.6. September 2014 DMA_ALLOC_FROM_COHER(9)