Re: [PATCH 0/2] drm/amd/display: follow-up fixes for LUT segmentation

[Melissa Wen]

On 19/08/2026 21:07, Alex Hung wrote:
> Thanks Melissa.
>
> I tested kms_colorop on DCN3.5 DCN3.14 without any problems. There are 
> some comments regarding to commit messages which I replied to each patch.
>
> I will send this patchset to next week's promotion test.

Nice! Thanks!

I sent a v2 addressing your comments in the commit message.
https://lore.kernel.org/amd-gfx/20260820093324.10201-1-mwen@xxxxxxxxxx/

Regarding the duplicated word `segments`, this follows the same pattern 
in similar color helpers and seems correct to me, since they are in 
different sentences.

Melissa

> On 8/19/26 10:00, Melissa Wen wrote:
> > Extend halving distribution for all curves/custom-LUT in a
> > encode-to-linear operation, not only PQ/SRGB. This fixes failures in IGT
> > kms_colorop test after [1]. Also use the CM3 degamma helper that
> > translates curves to hw points for DCN30-based family, not only DCN32,
> > since the banding issue is present on both.
> >
> > [1] 
> > https://lore.kernel.org/amd-gfx/20260623160112.1636801-1-mwen@xxxxxxxxxx/
> >
> > Melissa
> >
> > Melissa Wen (2):
> >    drm/amd/display: use halving distribution for all encode-to-linear
> >      curves
> >    drm/amd/display: use translate_curve_to_degamma_hw_format on DCN30
> >
> >   .../amd/display/dc/dcn30/dcn30_cm_common.c    | 34 ++++++-------------
> >   .../amd/display/dc/hwss/dcn30/dcn30_hwseq.c   | 10 +++---
> >   2 files changed, 14 insertions(+), 30 deletions(-)