Re: [PATCH 3/3] drm/amd/display: Compensate for pre-DCE12 BTR-VRR hw limitations. (v2)

2019-04-26 Thread Mario Kleiner
On Fri, Apr 26, 2019 at 7:12 PM Kazlauskas, Nicholas wrote: > > On 4/26/19 6:50 AM, Mario Kleiner wrote: > > Pre-DCE12 needs special treatment for BTR / low framerate > > compensation for more stable behaviour: > > > > According to comments in the code and some testing on DCE-8 > > and DCE-11,

Re: [PATCH 3/3] drm/amd/display: Compensate for pre-DCE12 BTR-VRR hw limitations. (v2)

2019-04-26 Thread Kazlauskas, Nicholas
On 4/26/19 6:50 AM, Mario Kleiner wrote: > Pre-DCE12 needs special treatment for BTR / low framerate > compensation for more stable behaviour: > > According to comments in the code and some testing on DCE-8 > and DCE-11, DCE-11 and earlier only apply VTOTAL_MIN/MAX > programming with a lag of one

[PATCH 3/3] drm/amd/display: Compensate for pre-DCE12 BTR-VRR hw limitations. (v2)

2019-04-26 Thread Mario Kleiner
Pre-DCE12 needs special treatment for BTR / low framerate compensation for more stable behaviour: According to comments in the code and some testing on DCE-8 and DCE-11, DCE-11 and earlier only apply VTOTAL_MIN/MAX programming with a lag of one frame, so the special BTR hw programming for