iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amd/display: Add check for validating unsupported ODM plus MPO case

Browse Source 
[Why]
We do not currently support ODM plus MPO on only one side of the
screen. This unsupported case causes validation calculations to
divide by zero due to invalid viewport values.

[How]
Add stopgap for the validation of ODM plus MPO on one side of
screen case.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Jaehyun Chung <jaehyum.chung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jaehyun Chung
2021-07-22 14:15:11 -04:00
committed by Alex Deucher
parent f39b21c499
commit e13c2ea2f5
1 changed files with 5 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -1051,6 +1051,11 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
/* depends on scaling ratios and recout, does not calculate offset yet */
calculate_viewport_size(pipe_ctx);
/* Stopgap for validation of ODM + MPO on one side of screen case */
if (pipe_ctx->plane_res.scl_data.viewport.height < 1 ||
pipe_ctx->plane_res.scl_data.viewport.width < 1)
return false;
/*
* LB calculations depend on vp size, h/v_active and scaling ratios
* Setting line buffer pixel depth to 24bpp yields banding