On Wed, Nov 23, 2022 at 10:33:38AM +0200, Pekka Paalanen wrote: > On Tue, 22 Nov 2022 18:33:59 +0100 > Christian König <christian.koenig@xxxxxxx> wrote: > > > We should have come up with dma-heaps earlier and make it clear that > > exporting a DMA-buf from a device gives you something device specific > > which might or might not work with others. > > > > Apart from that I agree, DMA-buf should be capable of handling this. > > Question left is what documentation is missing to make it clear how > > things are supposed to work? > > Perhaps somewhat related from Daniel Stone that seems to have been > forgotten: > https://lore.kernel.org/dri-devel/20210905122742.86029-1-daniels@xxxxxxxxxxxxx/ > > It aimed mostly at userspace, but sounds to me like the coherency stuff > could use a section of its own there? Hm yeah it would be great to land that and then eventually extend. Daniel? -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
