From: Alex Hung <alex.hung@amd.com>
To: Melissa Wen <mwen@igalia.com>,
airlied@gmail.com, alexander.deucher@amd.com,
christian.koenig@amd.com, harry.wentland@amd.com,
simona@ffwll.ch, siqueira@igalia.com, sunpeng.li@amd.com
Cc: Krunoslav Kovac <Krunoslav.Kovac@amd.com>,
"'Dr . David Alan Gilbert'" <linux@treblig.org>,
Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>,
Aurabindo Pillai <Aurabindo.Pillai@amd.com>,
Matthew Schwartz <matthew.schwartz@linux.dev>,
pekka.paalanen@collabora.com, robert.mader@posteo.de,
amd-gfx@lists.freedesktop.org, kernel-dev@igalia.com,
linux-kernel@vger.kernel.org, "Wheeler,
Daniel" <Daniel.Wheeler@amd.com>
Subject: Re: [PATCH 0/2] drm/amd/display: follow-up fixes for LUT segmentation
Date: Wed, 19 Aug 2026 13:07:18 -0600 [thread overview]
Message-ID: <e77850ac-1471-46cb-ba6f-4cc16d703515@amd.com> (raw)
In-Reply-To: <20260819161106.27702-1-mwen@igalia.com>
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.
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@igalia.com/
>
> 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(-)
>
next prev parent reply other threads:[~2026-08-19 19:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-19 16:00 Melissa Wen
2026-08-19 16:00 ` [PATCH 1/2] drm/amd/display: use halving distribution for all encode-to-linear curves Melissa Wen
2026-08-19 19:03 ` Alex Hung
2026-08-19 16:00 ` [PATCH 2/2] drm/amd/display: use translate_curve_to_degamma_hw_format on DCN30 Melissa Wen
2026-08-19 19:04 ` Alex Hung
2026-08-19 19:07 ` Alex Hung [this message]
2026-08-20 9:38 ` [PATCH 0/2] drm/amd/display: follow-up fixes for LUT segmentation Melissa Wen
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