6.10-stable review patch. If anyone has any objections, please let me know.
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From: Yihan Zhu Yihan.Zhu@amd.com
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 --- drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c | 1 + drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c | 1 + 2 files changed, 2 insertions(+)
--- 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*/ --- 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*/