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 67e38874b85b8df7b23d29f78ac3d7ecccd9519d # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023120311-exporter-another-f868@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
67e38874b85b ("drm/amd/display: Increase num voltage states to 40")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 67e38874b85b8df7b23d29f78ac3d7ecccd9519d Mon Sep 17 00:00:00 2001 From: Alvin Lee alvin.lee2@amd.com Date: Wed, 8 Nov 2023 17:16:28 -0500 Subject: [PATCH] drm/amd/display: Increase num voltage states to 40
[Description] If during driver init stage there are greater than 20 intermediary voltage states while constructing the SOC BB we could hit issues because we will index outside of the clock_limits array and start overwriting data. Increase the total number of states to 40 to avoid this issue.
Cc: stable@vger.kernel.org # 6.1+ Reviewed-by: Samson Tam samson.tam@amd.com Acked-by: Hamza Mahfooz hamza.mahfooz@amd.com Signed-off-by: Alvin Lee alvin.lee2@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h index 2cbdd75429ff..6e669a2c5b2d 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h +++ b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h @@ -36,7 +36,7 @@ * Define the maximum amount of states supported by the ASIC. Every ASIC has a * specific number of states; this macro defines the maximum number of states. */ -#define DC__VOLTAGE_STATES 20 +#define DC__VOLTAGE_STATES 40 #define DC__NUM_DPP__4 1 #define DC__NUM_DPP__0_PRESENT 1 #define DC__NUM_DPP__1_PRESENT 1