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 v2 0/2] drm/amd/display: follow-up bug fixes for LUT segmentation
Date: Fri, 28 Aug 2026 14:38:51 -0600 [thread overview]
Message-ID: <a5e9ba56-aec1-4684-90a5-2cdf46c5d102@amd.com> (raw)
In-Reply-To: <20260820093324.10201-1-mwen@igalia.com>
Weekly promotion tests found no regression.
This series is
Reviewed-by: Alex Hung <alex.hung@amd.com>
On 8/20/26 03:26, Melissa Wen wrote:
> Extend halving distribution to all curves/custom-LUT in a
> encode-to-linear operation, not just PQ/SRGB. This fixes IGT kms_colorop
> test failures after [1]. Also use the CM3 degamma helper which
> translates curves into hw points for DCN30, DCN301, DCN31, and DCN314
> not just DCN32+, as the banding issue is present all of them.
>
> [1] https://lore.kernel.org/amd-gfx/20260623160112.1636801-1-mwen@igalia.com/
>
> v1: https://lore.kernel.org/amd-gfx/20260819161106.27702-1-mwen@igalia.com/
> Changes:
> - Clearly state which DCN versions are affected and the reference commit
> (Alex H.)
>
> 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(-)
>
prev parent reply other threads:[~2026-08-28 20:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-20 9:26 Melissa Wen
2026-08-20 9:26 ` [PATCH v2 1/2] drm/amd/display: use halving distribution for all encode-to-linear curves Melissa Wen
2026-08-20 9:26 ` [PATCH v2 2/2] drm/amd/display: use translate_curve_to_degamma_hw_format on DCN30 Melissa Wen
2026-08-28 20:38 ` Alex Hung [this message]
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