Re: [PATCH] drm/nouveau/kms/nv50-: Don't allow inheritance of headless iors

2023-12-14 Thread Borislav Petkov
On Wed, Dec 13, 2023 at 07:43:57PM -0500, Lyude Paul wrote: > Turns out we made a silly mistake when coming up with OR inheritance on > nouveau. On pre-DCB 4.1, iors are statically routed to output paths via the > DCB. On later generations iors are only routed to an output path if they're >

[PATCH] drm/nouveau/kms/nv50-: Don't allow inheritance of headless iors

2023-12-13 Thread Lyude Paul
Turns out we made a silly mistake when coming up with OR inheritance on nouveau. On pre-DCB 4.1, iors are statically routed to output paths via the DCB. On later generations iors are only routed to an output path if they're actually being used. Unfortunately, it appears with NVIF_OUTP_INHERIT_V0