[PATCH RESEND v9 1/2] drm/atomic: Let drivers decide which planes to async flip

[Dmitry Baryshkov]

On Fri, Nov 01, 2024 at 03:23:47PM -0300, André Almeida wrote:
> Currently, DRM atomic uAPI allows only primary planes to be flipped
> asynchronously. However, each driver might be able to perform async
> flips in other different plane types. To enable drivers to set their own
> restrictions on which type of plane they can or cannot flip, use the
> existing atomic_async_check() from struct drm_plane_helper_funcs to
> enhance this flexibility, thus allowing different plane types to be able
> to do async flips as well.
> 
> In order to prevent regressions and such, we keep the current policy: we
> skip the driver check for the primary plane, because it is always
> allowed to do async flips on it.
> 
> Signed-off-by: André Almeida <andrealmeid at igalia.com>
> ---
> Changes from v8:
> - Rebased on top of 6.12-rc1
> ---
>  drivers/gpu/drm/drm_atomic_uapi.c | 39 +++++++++++++++++++++++++++++----------
>  1 file changed, 29 insertions(+), 10 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

-- 
With best wishes
Dmitry