intel_engine_get_busy_time  503 drivers/gpu/drm/i915/gt/intel_engine.h ktime_t intel_engine_get_busy_time(struct intel_engine_cs *engine);
intel_engine_get_busy_time  546 drivers/gpu/drm/i915/i915_pmu.c 			val = ktime_to_ns(intel_engine_get_busy_time(engine));