x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
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 3.16 October 2016 DMA_ALLOC_FROM_COHER(9)
Want to link to this manual page? Use this URL:
<http://star2.abcm.com/cgi-bin/bsdi-man?query=dma_alloc_from_coherent&sektion=9&manpath=>