Put back the preemption counters lost in commit 22b7a426bbe1
("drm/i915/execlists: Preempt-to-busy") so that our selftests that
assert no preemption took place continue to function.
v2: But a timeslice is only a "soft" preemption!
Fixes: 22b7a426bbe1 ("drm/i915/execlists: Preempt-to-busy")
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com>
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c
b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 19ce8eb5e5c9..270ef417dd1a 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -921,6 +921,11 @@ enable_timeslice(struct intel_engine_cs *engine)
return last && need_timeslice(engine, last);
}
+static void record_preemption(struct intel_engine_execlists *execlists)
+{
+ (void)I915_SELFTEST_ONLY(execlists->preempt_hang.count++);
+}
+
static void execlists_dequeue(struct intel_engine_cs *engine)
{
struct intel_engine_execlists * const execlists = &engine->execlists;
@@ -989,6 +994,8 @@ static void execlists_dequeue(struct intel_engine_cs
*engine)
last->fence.seqno,
last->sched.attr.priority,
execlists->queue_priority_hint);
+ record_preemption(execlists);
+
/*
* Don't let the RING_HEAD advance past the breadcrumb
* as we unwind (and until we resubmit) so that we do
--
2.22.0
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