423 	rdev->wb.enabled = false;  in radeon_wb_disable()
437 	if (rdev->wb.wb_obj) {  in radeon_wb_fini()
438 		if (!radeon_bo_reserve(rdev->wb.wb_obj, false)) {  in radeon_wb_fini()
439 			radeon_bo_kunmap(rdev->wb.wb_obj);  in radeon_wb_fini()
440 			radeon_bo_unpin(rdev->wb.wb_obj);  in radeon_wb_fini()
441 			radeon_bo_unreserve(rdev->wb.wb_obj);  in radeon_wb_fini()
443 		radeon_bo_unref(&rdev->wb.wb_obj);  in radeon_wb_fini()
444 		rdev->wb.wb = NULL;  in radeon_wb_fini()
445 		rdev->wb.wb_obj = NULL;  in radeon_wb_fini()
462 	if (rdev->wb.wb_obj == NULL) {  in radeon_wb_init()
465 				     &rdev->wb.wb_obj);  in radeon_wb_init()
467 			dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);  in radeon_wb_init()
470 		r = radeon_bo_reserve(rdev->wb.wb_obj, false);  in radeon_wb_init()
475 		r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT,  in radeon_wb_init()
476 				&rdev->wb.gpu_addr);  in radeon_wb_init()
478 			radeon_bo_unreserve(rdev->wb.wb_obj);  in radeon_wb_init()
479 			dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r);  in radeon_wb_init()
483 		r = radeon_bo_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb);  in radeon_wb_init()
484 		radeon_bo_unreserve(rdev->wb.wb_obj);  in radeon_wb_init()
486 			dev_warn(rdev->dev, "(%d) map WB bo failed\n", r);  in radeon_wb_init()
492 	/* clear wb memory */  in radeon_wb_init()
493 	memset((char *)rdev->wb.wb, 0, RADEON_GPU_PAGE_SIZE);  in radeon_wb_init()
495 	rdev->wb.use_event = false;  in radeon_wb_init()
498 		rdev->wb.enabled = false;  in radeon_wb_init()
502 			rdev->wb.enabled = false;  in radeon_wb_init()
505 			rdev->wb.enabled = false;  in radeon_wb_init()
507 			rdev->wb.enabled = true;  in radeon_wb_init()
510 				rdev->wb.use_event = true;  in radeon_wb_init()
516 		rdev->wb.enabled = true;  in radeon_wb_init()
517 		rdev->wb.use_event = true;  in radeon_wb_init()
520 	dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis");  in radeon_wb_init()