Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> We may choose to only submit ELSP[0], even though we have sufficient
> requests to fill the whole ELSP. Normally, we only start timeslicing if
> we fill more than one port, but in this case we need to start
> timeslicing for the queue that we choose not to submit.
If this is last in a line, it makes sense to make sure
that we get woken up.
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/intel_lrc.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
> index 69fff36ec0cc..6fc0966b75ff 100644
> --- a/drivers/gpu/drm/i915/gt/intel_lrc.c
> +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
> @@ -2358,8 +2358,10 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
> if (last->context == rq->context)
> goto done;
>
> - if (i915_request_has_sentinel(last))
> + if (i915_request_has_sentinel(last)) {
> + start_timeslice(engine, rq_prio(rq));
> goto done;
> + }
>
> /*
> * If GVT overrides us we only ever submit
> --
> 2.20.1
>
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