[PATCH 09/12] ttm: Provide DMA aware TTM page pool code.

[Thomas Hellstrom]

....

On 11/08/2011 12:40 AM, j.glisse at gmail.com wrote:
> diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
> index ae06e42..beef9ab 100644
> --- a/include/drm/ttm/ttm_bo_driver.h
> +++ b/include/drm/ttm/ttm_bo_driver.h
> @@ -104,6 +104,7 @@ enum ttm_caching_state {
>    * @caching_state: The current caching state of the pages.
>    * @state: The current binding state of the pages.
>    * @dma_address: The DMA (bus) addresses of the pages (if TTM_PAGE_FLAG_DMA32)
> + * @alloc_list: used by some page allocation backend
>    

As mentioned in the comment to patch 7, could we put this in a
struct ttm_dma_tt, which embeds struct ttm_tt?



>    *
>    * This is a structure holding the pages, caching- and aperture binding
>    * status for a buffer object that isn't backed by fixed (VRAM / AGP)
> @@ -127,6 +128,7 @@ struct ttm_tt {
>   		tt_unpopulated,
>   	} state;
>   	dma_addr_t *dma_address;
> +	struct list_head alloc_list;
>   };
>
>