The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 6f395cebdd8927fbffdc3a55a14fcacf93634359 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023120313-financial-boogeyman-d74e@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
6f395cebdd89 ("drm/amd/display: Fix MPCC 1DLUT programming")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 6f395cebdd8927fbffdc3a55a14fcacf93634359 Mon Sep 17 00:00:00 2001 From: Ilya Bakoulin ilya.bakoulin@amd.com Date: Tue, 7 Nov 2023 15:07:56 -0500 Subject: [PATCH] drm/amd/display: Fix MPCC 1DLUT programming
[Why] Wrong function is used to translate LUT values to HW format, leading to visible artifacting in some cases.
[How] Use the correct cm3_helper function.
Cc: stable@vger.kernel.org # 6.1+ Reviewed-by: Krunoslav Kovac krunoslav.kovac@amd.com Acked-by: Hamza Mahfooz hamza.mahfooz@amd.com Signed-off-by: Ilya Bakoulin ilya.bakoulin@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index 6a65af8c36b9..5f7f474ef51c 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -487,8 +487,7 @@ bool dcn32_set_mcm_luts( if (plane_state->blend_tf->type == TF_TYPE_HWPWL) lut_params = &plane_state->blend_tf->pwl; else if (plane_state->blend_tf->type == TF_TYPE_DISTRIBUTED_POINTS) { - cm_helper_translate_curve_to_hw_format(plane_state->ctx, - plane_state->blend_tf, + cm3_helper_translate_curve_to_hw_format(plane_state->blend_tf, &dpp_base->regamma_params, false); lut_params = &dpp_base->regamma_params; } @@ -503,8 +502,7 @@ bool dcn32_set_mcm_luts( else if (plane_state->in_shaper_func->type == TF_TYPE_DISTRIBUTED_POINTS) { // TODO: dpp_base replace ASSERT(false); - cm_helper_translate_curve_to_hw_format(plane_state->ctx, - plane_state->in_shaper_func, + cm3_helper_translate_curve_to_hw_format(plane_state->in_shaper_func, &dpp_base->shaper_params, true); lut_params = &dpp_base->shaper_params; }