Hi, On Fri, Apr 26, 2024 at 02:07:23AM +0200, Andi Shyti wrote: > We missed setting the CCS mode during resume and engine resets. > Create a workaround to be added in the engine's workaround list. > This workaround sets the XEHP_CCS_MODE value at every reset. > > The issue can be reproduced by running: > > $ clpeak --kernel-latency > > Without resetting the CCS mode, we encounter a fence timeout: > > Fence expiration time out i915-0000:03:00.0:clpeak[2387]:2! > > Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/10895 > Fixes: 6db31251bb26 ("drm/i915/gt: Enable only one CCS for compute workload") > Reported-by: Gnattu OC <gnattuoc@xxxxxx> > Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> > Cc: Chris Wilson <chris.p.wilson@xxxxxxxxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Cc: Matt Roper <matthew.d.roper@xxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> # v6.2+ based on the discussion on the issue and as agreed with Gnattu: Tested-by: Gnattu OC <gnattuoc@xxxxxx> Thank you again, gnattu, Andi
