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

[André Almeida]

Hi Christopher,

Em 03/11/2024 03:36, Christopher Snowhill escreveu:
> On Fri Nov 1, 2024 at 11:23 AM PDT, 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>
> 
> Should I do a R-b too? 

If you can review the code, it's always really appreciated.

> The changes looked sound enough for me to feel
> like testing it as well. Tested Borderlands Game of the Year Enhanced on
> my RX 7700 XT at maximum settings at 1080p165, and the tearing support in
> labwc allowed it to reach over 700fps. No problems from the hardware
> cursor.

Thanks for testing and reporting!

> 
> Tested-by: Christopher Snowhill <chris at kode54.net>
>