drm/i915/gt: Signal cancelled requests

After marking the requests on an engine as cancelled upon wedging, send
any signals for their completions.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200930163253.2789-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/gt/intel_lrc.c

@@ -4407,6 +4407,7 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine)
 	/* Mark all executing requests as skipped. */
 	list_for_each_entry(rq, &engine->active.requests, sched.link)
 		mark_eio(rq);
+	intel_engine_signal_breadcrumbs(engine);
 
 	/* Flush the queued requests to the timeline list (for retiring). */
 	while ((rb = rb_first_cached(&execlists->queue))) {

drivers/gpu/drm/i915/gt/intel_ring_submission.c

@@ -444,6 +444,7 @@ static void reset_cancel(struct intel_engine_cs *engine)
 		i915_request_set_error_once(request, -EIO);
 		i915_request_mark_complete(request);
 	}
+	intel_engine_signal_breadcrumbs(engine);
 
 	/* Remaining _unready_ requests will be nop'ed when submitted */