This is a note to let you know that I've just added the patch titled
drm/amd/display: Ignore scalar validation failure if pipe is phantom
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-ignore-scalar-validation-failure-if-.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a9c76d61a5eabc84637a21287b954a28e3be4827
Author: Chris Park <chris.park@xxxxxxx>
Date: Mon Nov 4 13:18:39 2024 -0500
drm/amd/display: Ignore scalar validation failure if pipe is phantom
[ Upstream commit c33a93201ca07119de90e8c952fbdf65920ab55d ]
[Why]
There are some pipe scaler validation failure when the pipe is phantom
and causes crash in DML validation. Since, scalar parameters are not
as important in phantom pipe and we require this plane to do successful
MCLK switches, the failure condition can be ignored.
[How]
Ignore scalar validation failure if the pipe validation is marked as
phantom pipe.
Cc: stable@xxxxxxxxxxxxxxx # 6.11+
Reviewed-by: Dillon Varone <dillon.varone@xxxxxxx>
Signed-off-by: Chris Park <chris.park@xxxxxxx>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index df513dbd32bdf..d915020a42958 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1501,6 +1501,10 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
res = spl_calculate_scaler_params(spl_in, spl_out);
// Convert respective out params from SPL to scaler data
translate_SPL_out_params_to_pipe_ctx(pipe_ctx, spl_out);
+
+ /* Ignore scaler failure if pipe context plane is phantom plane */
+ if (!res && plane_state->is_phantom)
+ res = true;
} else {
#endif
/* depends on h_active */
@@ -1571,6 +1575,10 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
&plane_state->scaling_quality);
}
+ /* Ignore scaler failure if pipe context plane is phantom plane */
+ if (!res && plane_state->is_phantom)
+ res = true;
+
if (res && (pipe_ctx->plane_res.scl_data.taps.v_taps != temp.v_taps ||
pipe_ctx->plane_res.scl_data.taps.h_taps != temp.h_taps ||
pipe_ctx->plane_res.scl_data.taps.v_taps_c != temp.v_taps_c ||
