drm/i915: Include intel_engine_is_idle() status in engine pretty-printer

Upon parking, if we discover an active engine we dump its state. Follow
that state with an indication of whether the engine was idle.

References: https://bugs.freedesktop.org/show_bug.cgi?id=103479
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107152211.19930-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index ddbe5c9bf45abd1df81c3235751acf90ae5d7f92..6997306be0d28cc8913211054f65b850908b6780 100644 (file)
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1835,6 +1835,7 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
        }
        spin_unlock_irq(&b->rb_lock);
 
+       drm_printf(m, "Idle? %s\n", yesno(intel_engine_is_idle(engine)));
        drm_printf(m, "\n");
 }