drm/i915: Clear gt.active_requests before checking idle status
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 31 Mar 2017 19:21:21 +0000 (20:21 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 31 Mar 2017 20:08:22 +0000 (21:08 +0100)
commit5f09ad8be7bc2d09f2248ad102f0024e6bdb4613
treebae75ca6ce2ea7227a5c8cceb4f70d3a976d4652
parentb9ab1f3f4454163c7850bd6cbaefcafa6955e1c1
drm/i915: Clear gt.active_requests before checking idle status

commit 8490ae207f1d ("drm/i915: Suppress busy status for engines if
wedged") moved the check for inflight requests to the
intel_engines_are_idle() check to protect the idle worker. However, the
request selftests were also checking the engine idle status and erroring
out if they did not become idle within a short period of time after the
final wait. In order to accommodate the new check, call retire requests
prior to the engine check so that we flush all the waits.

Fixes: 8490ae207f1d ("drm/i915: Suppress busy status for engines if wedged")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170331192121.10024-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
drivers/gpu/drm/i915/selftests/i915_gem_request.c