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drm/i915/gt: Do not suspend bonded requests if one hangs

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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
This commit is contained in:
Chris Wilson 2021-01-20 12:17:17 +00:00
parent 14ca83eece
commit aba738262b
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/gt/intel_execlists_submission.c
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@ -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);