[PATCH 1/3] drm/ttm: add set_pages_wb for handling page order more than zero

[Chris Wilson]

Quoting Roger He (2017-11-22 11:44:27)
> Change-Id: Idf5ccb579d264b343199d8b8344bddeec2c0019f
> Signed-off-by: Roger He <Hongbo.He at amd.com>
> ---
>  drivers/gpu/drm/ttm/ttm_page_alloc.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
> index a8b2bfa..cdbb731 100644
> --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
> +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
> @@ -223,6 +223,17 @@ static struct kobj_type ttm_pool_kobj_type = {
>  static struct ttm_pool_manager *_manager;
>  
>  #ifndef CONFIG_X86
> +static int set_pages_wb(struct page *page, int numpages)
> +{
> +#if IS_ENABLED(CONFIG_AGP)
> +       int i;
> +
> +       for (i = 0; i < numpages; i++)
> +               unmap_page_from_agp(page++);
> +#endif
> +       return 0;
> +}
> +
>  static int set_pages_array_wb(struct page **pages, int addrinarray)

Both of these are shadowing exports from arch/x86, probably not the
wisest choice of names.
-Chris