Loading Documentation/dmaengine/provider.txt +1 −1 Original line number Diff line number Diff line Loading @@ -384,7 +384,7 @@ where to put them) - The descriptor should be prepared for reuse by invoking dmaengine_desc_set_reuse() which will set DMA_CTRL_REUSE. - dmaengine_desc_set_reuse() will succeed only when channel support reusable descriptor as exhibited by capablities reusable descriptor as exhibited by capabilities - As a consequence, if a device driver wants to skip the dma_map_sg() and dma_unmap_sg() in between 2 transfers, because the DMA'd data wasn't used, it can resubmit the transfer right after its completion. Loading Loading
Documentation/dmaengine/provider.txt +1 −1 Original line number Diff line number Diff line Loading @@ -384,7 +384,7 @@ where to put them) - The descriptor should be prepared for reuse by invoking dmaengine_desc_set_reuse() which will set DMA_CTRL_REUSE. - dmaengine_desc_set_reuse() will succeed only when channel support reusable descriptor as exhibited by capablities reusable descriptor as exhibited by capabilities - As a consequence, if a device driver wants to skip the dma_map_sg() and dma_unmap_sg() in between 2 transfers, because the DMA'd data wasn't used, it can resubmit the transfer right after its completion. Loading
Vinod Koul <vinod.koul@intel.com>Vinod Koul <vinod.koul@intel.com>