[PATCH 3/3] warn

[Chris Wilson]

---
 drivers/gpu/drm/i915/i915_irq.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index f8205841868b..300ccdd2ef45 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1391,6 +1391,11 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir, int test_shift)
 		if (READ_ONCE(engine->execlists.active)) {
 			__set_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
 			tasklet = true;
+		} else {
+			struct drm_printer p = drm_info_printer(engine->i915->drm.dev);
+			WARN(1, "%s(%s): execlists not active\n",
+			     __func__, engine->name);
+			intel_engine_dump(engine, &p);
 		}
 	}
 
-- 
2.15.0.rc1