Hi Hamza,
Em 22/11/2023 17:23, Hamza Mahfooz escreveu:
Hi André,
On 11/22/23 11:19, André Almeida wrote:
Hi,
This work from me and Simon adds support for DRM_MODE_PAGE_FLIP_ASYNC
through
the atomic API. This feature is already available via the legacy API.
The use
case is to be able to present a new frame immediately (or as soon as
possible), even if after missing a vblank. This might result in
tearing, but
it's useful when a high framerate is desired, such as for gaming.
Differently from earlier versions, this one refuses to flip if any
prop changes
for async flips. The idea is that the fast path of immediate page
flips doesn't
play well with modeset changes, so only the fb_id can be changed.
Tested with:
- Intel TigerLake-LP GT2
- AMD VanGogh
Have you had a chance to test this with VRR enabled? Since, I suspect
this series might break that feature.
Someone asked this question in an earlier version of this patch, and the
result is that VRR still works as expected. You can follow the thread at
this link:
https://lore.kernel.org/lkml/b48bd1fc-fcb0-481b-8413-9210d44d709b@xxxxxxxxxx/
I should have included this note at my cover letter, my bad.
Thanks,
André
