On Wednesday, December 9th, 2020 at 8:40 PM, Daniel Vetter <daniel@xxxxxxxx> wrote: > > But it's not enough, can't have two CRTCs with the same primary plane. Well, > > I give up, it's just simpler to use Daniel's criteria. > > Yeah, also with the validation check we'll now real quick if any driver > gets it wrong. Then I think we can have a useful discussion about why, and > what to do with that case. As-is we're kinda drafting specs in the void, > which is always a bit tough ... > > That's kinda another reason for doing the stricter check I proposed, it's > easier to check and guarantee (on both the driver and compositor side > hopefully). Hmm, actually, I'm already hitting a driver which doesn't guarantee that. amdgpu with my hardware [1] has the first primary plane linked to the the last CRTC, the second primary plane linked to the second-to-last CRTC, and so on. [1]: https://drmdb.emersion.fr/devices/129e158a4d9f _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
