[PATCH 11/14] drm/radeon/kms: enable the ttm dma pool if swiotlb is on V3

[Konrad Rzeszutek Wilk]

> +#ifdef CONFIG_SWIOTLB
> +	if (swiotlb_nr_tbl()) {
> +		return ttm_dma_populate(ttm, rdev->dev);
> +	}
> +#endif
..
> +#ifdef CONFIG_SWIOTLB
> +	if (swiotlb_nr_tbl()) {
> +		ttm_dma_unpopulate(ttm, rdev->dev);
> +		return;
> +	}
> +#endif

> +#ifdef CONFIG_SWIOTLB
> +	if (rdev->need_dma32 && swiotlb_nr_tbl()) {
> +		sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool");
> +		radeon_mem_types_list[i].name = radeon_mem_types_names[i];
> +		radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
> +		radeon_mem_types_list[i].driver_features = 0;
> +		radeon_mem_types_list[i++].data = NULL;
> +	}
> +#endif

So I think the last one does not need the rdev->need_dma32 as you had
removed it from the other sites.