From 2928bb53e1229162e7418e6504321a4f9f41cdd4 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 28 May 2020 21:57:27 +0100
Subject: drm/i915/gt: Start timeslice on partial submission
Git-commit: 2010b7f0a8521fa7463056c8f077277a33a45c5f
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
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.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200528205727.20309-1-chris@chris-wilson.co.uk
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 3174e2cfbb95..65cf152a3d5c 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -2366,8 +2366,10 @@ 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
--
2.29.2