The patch below does not apply to the 5.10-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-5.10.y git checkout FETCH_HEAD git cherry-pick -x 7eb287beeb60be1e4437be2b4e4e9f0da89aab97 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025042801-bucktooth-unstopped-52b8@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 7eb287beeb60be1e4437be2b4e4e9f0da89aab97 Mon Sep 17 00:00:00 2001 From: Roman Li Roman.Li@amd.com Date: Tue, 1 Apr 2025 17:05:10 -0400 Subject: [PATCH] drm/amd/display: Fix gpu reset in multidisplay config

[Why] The indexing of stream_status in dm_gpureset_commit_state() is incorrect. That leads to asserts in multi-display configuration after gpu reset.

[How] Adjust the indexing logic to align stream_status with surface_updates.

Fixes: cdaae8371aa9 ("drm/amd/display: Handle GPU reset for DC block") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3808 Reviewed-by: Aurabindo Pillai aurabindo.pillai@amd.com Reviewed-by: Mario Limonciello mario.limonciello@amd.com Signed-off-by: Roman Li Roman.Li@amd.com Signed-off-by: Zaeem Mohamed zaeem.mohamed@amd.com Tested-by: Mark Broadworth mark.broadworth@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit d91bc901398741d317d9b55c59ca949d4bc7394b) Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 9fed4471405f..8f3a778df646 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3355,16 +3355,16 @@ static void dm_gpureset_commit_state(struct dc_state *dc_state, for (k = 0; k < dc_state->stream_count; k++) { bundle->stream_update.stream = dc_state->streams[k];

- for (m = 0; m < dc_state->stream_status->plane_count; m++) { + for (m = 0; m < dc_state->stream_status[k].plane_count; m++) { bundle->surface_updates[m].surface = - dc_state->stream_status->plane_states[m]; + dc_state->stream_status[k].plane_states[m]; bundle->surface_updates[m].surface->force_full_update = true; }

update_planes_and_stream_adapter(dm->dc, UPDATE_TYPE_FULL, - dc_state->stream_status->plane_count, + dc_state->stream_status[k].plane_count, dc_state->streams[k], &bundle->stream_update, bundle->surface_updates);