(In reply to Nicola Mori from comment #47)
> Thanks for the clarification, Christian. Could it also impact other cases,
> e.g. a desktop environment with hardware accelerated visual effects?

Not really, that is way to less load to cause any real trouble. 3D games on the
other hand are a different story.

> Given the comment by Alex about the possibly buggy UVD1 hardware semaphores,
> the overall satisfactory performance of the patch and the old hardware
> affected by the bug I would guess that this patch likely is the final fix
> for this bug. If so, when will it be mainlined (approx.)?

Alex merged it into hist drm-fixes-4.1 branch and I put a CC stable on it. So
if everything works well it will show up in 4.1 and is then backported to the
stable kernel versions used by distributions.