Re: [PATCH v2 4/7] drm/vc4: kms: Wait on previous FIFO users before a commit

2020-12-08 Thread Daniel Vetter
On Fri, Dec 04, 2020 at 04:11:35PM +0100, Maxime Ripard wrote: > If we're having two subsequent, non-blocking, commits on two different > CRTCs that share no resources, there's no guarantee on the order of > execution of both commits. > > However, the second one will consider the first one as the

[PATCH v2 4/7] drm/vc4: kms: Wait on previous FIFO users before a commit

2020-12-07 Thread Maxime Ripard
If we're having two subsequent, non-blocking, commits on two different CRTCs that share no resources, there's no guarantee on the order of execution of both commits. However, the second one will consider the first one as the old state, and will be in charge of freeing it once that second commit is