drm/amd/display: Enable DML2 override_det_buffer_size_kbytes

commit f57b77d667dc6bd2b114d08d04b03869539209f6 upstream.

[WHY]
Corrupted screen will be observed when 4k144 DP/HDMI display and
4k144 eDP are connected, changing eDP refresh rate from 60Hz to 144Hz.

[HOW]
override_det_buffer_size_kbytes should be true for DCN35/DCN351.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Roman Li <roman.li@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
index 915d68cc04e9c2f32db4c089ccee54f153a20999..66b73edda7b6dd20aae066cd0e6f64aa5241c3b3 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
@@ -2150,6 +2150,7 @@ static bool dcn35_resource_construct(
        dc->dml2_options.max_segments_per_hubp = 24;
 
        dc->dml2_options.det_segment_size = DCN3_2_DET_SEG_SIZE;/*todo*/
+       dc->dml2_options.override_det_buffer_size_kbytes = true;
 
        if (dc->config.sdpif_request_limit_words_per_umc == 0)
                dc->config.sdpif_request_limit_words_per_umc = 16;/*todo*/

diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c
index 4a8121b811a5b6006e237da038e8fa5aa3cc73bc..987c3927b1185171f085dc89df10f6038b500fce 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c
@@ -2132,6 +2132,7 @@ static bool dcn351_resource_construct(
 
        dc->dml2_options.max_segments_per_hubp = 24;
        dc->dml2_options.det_segment_size = DCN3_2_DET_SEG_SIZE;/*todo*/
+       dc->dml2_options.override_det_buffer_size_kbytes = true;
 
        if (dc->config.sdpif_request_limit_words_per_umc == 0)
                dc->config.sdpif_request_limit_words_per_umc = 16;/*todo*/