On Mon, Mar 4, 2019 at 6:11 PM Alyssa Rosenzweig <aly...@rosenzweig.io> wrote: > > > Why aren't we using regular dma-buf fences here? The submit ioctl > > should be able to take a number of in fences to wait on and return an > > out fence if requested. > > Ah-ha, that sounds like the "proper" approach for mainline. Much of this > was (incorrectly) inherited from the Arm driver. Thank you for the > pointer.
I'm not sure - I mean, the submit should take in/out fences, but the atom mechanism here sounds more like it's for declaring the dependencies between multiple batches in a renderpass/frame to allow the kernel to shcedule them? The sync fd may be a little to heavy handed for that, and if you want to express that kind of dependency to allow the kernel to reschedule, maybe we need both? _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
