i915/drm_fdinfo: Quiesce GPU prior to running some tests
Sometimes render is still running a remnant of a prior workload when we expect it to be idle. This throws some tests off. Ensure that these tests wait for a quiescent state prior to checking if render is idle. Closes: drm/i915/kernel#12179 Signed-off-by:Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Reviewed-by:
Ashutosh Dixit <ashutosh.dixit@intel.com>