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- jessie 3.16.56-1+deb8u1
DMA_RELEASE_FROM_COH(9) | Device drivers infrastructure | DMA_RELEASE_FROM_COH(9) |
NAME¶
dma_release_from_coherent - try to free the memory allocated from per-device coherent memory poolSYNOPSIS¶
int
dma_release_from_coherent(struct device * dev,
int order,
void * vaddr);
ARGUMENTS¶
devdevice from which the memory was allocated
order
the order of pages allocated
vaddr
virtual address of allocated pages
DESCRIPTION¶
This checks whether the memory was allocated from the per-device coherent memory pool and if so, releases that memory. Returns 1 if we correctly released the memory, or 0 if dma_release_coherent should proceed with releasing memory from generic pools.COPYRIGHT¶
May 2018 | Kernel Hackers Manual 3.16 |