On Thursday, September 9th, 2021 at 18:31, Rob Clark <robdclark@xxxxxxxxx> wrote: > Yes, I think it would.. and "dma-buf/sync_file: Add SET_DEADLINE > ioctl" adds such an ioctl.. just for the benefit of igt tests at this > point, but the thought was it would be also used by compositors that > are doing such frame scheduling. Ofc danvet is a bit grumpy that > there isn't a more real (than igt) userspace for the ioctl yet ;-) Ah, very nice, I somehow missed it. I guess one issue is that explicit sync isn't quite plumbed through compositors yet, so without Jason's DMA-BUF to sync_file IOCTL it'd be a bit difficult to use. Can anybody set the deadline? I wonder if clients should be allowed to. What happens if the deadline is exceeded? I'd assume nothing in particular, the deadline being just a hint?
