On Wed, Nov 18, 2020 at 03:25:46PM +0100, Ricardo Ribalda wrote: > On architectures where the is no coherent caching such as ARM use the > dma_alloc_noncontiguos API and handle manually the cache flushing using > dma_sync_single(). > > With this patch on the affected architectures we can measure up to 20x > performance improvement in uvc_video_copy_data_work(). This has a bunch of crazy long lines, but otherwise looks fine to me. > > Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> > --- > > This patch depends on dma_alloc_contiguous API1315351diffmboxseries How do we want to proceed? Do the media maintainers want to pick up that patch? Should I pick up the media patch in the dma-mapping tree? Can you respost a combined series to get started?
