From dfc89e1261b3c97c445e37101368369f1f0081da Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed, 20 Jan 2021 12:17:17 +0000 Subject: [PATCH] drm/i915/gt: Do not suspend bonded requests if one hangs Treat the dependency between bonded requests as weak and leave the remainder of the pair on the GPU if one hangs. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210120121718.26435-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index 740ff05fd6922..524c8b54d220e 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -1990,6 +1990,9 @@ static void __execlists_hold(struct i915_request *rq) struct i915_request *w = container_of(p->waiter, typeof(*w), sched); + if (p->flags & I915_DEPENDENCY_WEAK) + continue; + /* Leave semaphores spinning on the other engines */ if (w->engine != rq->engine) continue; @@ -2088,6 +2091,9 @@ static void __execlists_unhold(struct i915_request *rq) struct i915_request *w = container_of(p->waiter, typeof(*w), sched); + if (p->flags & I915_DEPENDENCY_WEAK) + continue; + /* Propagate any change in error status */ if (rq->fence.error) i915_request_set_error_once(w, rq->fence.error); -- 2.39.5