On Wed, Mar 8, 2023 at 10:53 AM Rob Clark <robdclark@xxxxxxxxx> wrote: > > From: Rob Clark <robdclark@xxxxxxxxxxxx> > > This series adds a deadline hint to fences, so realtime deadlines > such as vblank can be communicated to the fence signaller for power/ > frequency management decisions. > > This is partially inspired by a trick i915 does, but implemented > via dma-fence for a couple of reasons: > > 1) To continue to be able to use the atomic helpers > 2) To support cases where display and gpu are different drivers > > This iteration adds a dma-fence ioctl to set a deadline (both to > support igt-tests, and compositors which delay decisions about which > client buffer to display), and a sw_sync ioctl to read back the > deadline. IGT tests utilizing these can be found at: I read through the series and didn't spot anything. Have a rather weak Reviewed-by: Matt Turner <mattst88@xxxxxxxxx> Thanks!
