On Thu, Dec 20, 2018 at 7:33 PM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Thu, Dec 20, 2018 at 07:29:37PM +0100, Daniel Vetter wrote: > > What we most definitely not want to end up with though is actually > > streaming dma, because with that all the zero copy buffer sharing > > tricks become pointless. There's pretty epic amounts of hacks to work > > around this, I have no idea what's supposed to give here. > > Err, with streaming DMA buffer sharing is trivial. The coherent DMA > allocator is what causes all kinds of horrible hacks that can't actually > work on various platforms. Hm, I thought the streaming dma api is the one that causes bounce buffers and all that fun. If you're unlucky at least. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
