Commit 8f54b3c6 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Trim delays for wedging 



CI still reports the occasional multi-second delay for resets, in
particular along the wedge+recovery paths. As the likely, and unbounded,
delay here is from sync_rcu, use the expedited variant instead.

Testcase: igt/gem_eio/unwedge-stress
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190219122215.8941-7-chris@chris-wilson.co.uk
parent 370d757d

drivers/gpu/drm/i915/i915_reset.c

+1 −1
Original line number Diff line number Diff line
@@ -830,7 +830,7 @@ static void __i915_gem_set_wedged(struct drm_i915_private *i915) 
	 * either this call here to intel_engine_write_global_seqno, or the one

	 * in nop_submit_request.

	 */

	synchronize_rcu();

	synchronize_rcu_expedited();



	/* Mark all executing requests as skipped */

	for_each_engine(engine, i915, id)