From: Wesley Chalmers Wesley.Chalmers@amd.com
[ Upstream commit f3e077d95ca0a016fdf3d6b1e97a9910dfdaff17 ]
DML does not calculate chroma values for RQ when surface is not YUV, but DC will unconditionally use the uninitialized values for HW programming. This does not cause visual corruption since HW will ignore garbage chroma values when surface is not YUV, but causes presubmission tests to fail golden value comparison.
Signed-off-by: Wesley Chalmers Wesley.Chalmers@amd.com Signed-off-by: Eryk Brol eryk.brol@amd.com Reviewed-by: Wenjing Liu Wenjing.Liu@amd.com Acked-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c b/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c index c2037daa8e66..0efbf411667a 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c @@ -239,6 +239,8 @@ void dml1_extract_rq_regs( extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_l), rq_param.sizing.rq_l); if (rq_param.yuv420) extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_c), rq_param.sizing.rq_c); + else + memset(&(rq_regs->rq_regs_c), 0, sizeof(rq_regs->rq_regs_c));
rq_regs->rq_regs_l.swath_height = dml_log2(rq_param.dlg.rq_l.swath_height); rq_regs->rq_regs_c.swath_height = dml_log2(rq_param.dlg.rq_c.swath_height);