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drm/amd/display: Fix VBA chroma calculation for pipe splitting 

[Why]
DML failures occur for 420 modes with dynamic pipe
splitting enabled because the ChromaViewport exceeds
the ChromaSurfaceWidth.

This is caused by adding the viewport_width instead
of the viewport_width_c.

This similarly occurs for rotated modes due to the
use of viewport_height instead of viewport_height_c.

[How]
Correct the calculations.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Kazlauskas 2020-05-22 13:24:06 -04:00 committed by Alex Deucher
parent c0838cbee2
commit 92bfc4a196
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
View File

@ -623,14 +623,14 @@ static void fetch_pipe_params(struct display_mode_lib *mode_lib)
mode_lib->vba.ViewportWidth[mode_lib->vba.NumberOfActivePlanes] +=
src_k->viewport_width;
mode_lib->vba.ViewportWidthChroma[mode_lib->vba.NumberOfActivePlanes] +=
src_k->viewport_width;
src_k->viewport_width_c;
mode_lib->vba.ScalerRecoutWidth[mode_lib->vba.NumberOfActivePlanes] +=
dst_k->recout_width;
} else {
mode_lib->vba.ViewportHeight[mode_lib->vba.NumberOfActivePlanes] +=
src_k->viewport_height;
mode_lib->vba.ViewportHeightChroma[mode_lib->vba.NumberOfActivePlanes] +=
src_k->viewport_height;
src_k->viewport_height_c;
}
mode_lib->vba.NumberOfDSCSlices[mode_lib->vba.NumberOfActivePlanes] +=
dout_k->dsc_slices;