drm/i915/gt: Tidy up checking active timelines during retirement

#include "intel_gt_requests.h"

#include "intel_timeline.h"

static void retire_requests(struct intel_timeline *tl)

static bool retire_requests(struct intel_timeline *tl)

{

	struct i915_request *rq, *rn;

	list_for_each_entry_safe(rq, rn, &tl->requests, link)

		if (!i915_request_retire(rq))

			break;

			return false;

	/* And check nothing new was submitted */

	return !i915_active_fence_isset(&tl->last_request);

}

static bool flush_submission(struct intel_gt *gt)

	enum intel_engine_id id;

	bool active = false;

	if (!intel_gt_pm_is_awake(gt))

		return false;

	for_each_engine(engine, gt, id) {

		active |= intel_engine_flush_submission(engine);

		active |= flush_work(&engine->retire_work);

			}

		}

		retire_requests(tl);

		active_count += !retire_requests(tl);

		spin_lock(&timelines->lock);

		list_safe_reset_next(tl, tn, link);

		if (atomic_dec_and_test(&tl->active_count))

			list_del(&tl->link);

		else

			active_count += i915_active_fence_isset(&tl->last_request);

		mutex_unlock(&tl->mutex);