From: Shirish S <shirish.s@amd.com>
Date: Wed, 7 Mar 2018 12:36:11 +0530
Subject: drm/amd/display: validate plane format on primary plane
Git-commit: 4a53d9045ec31f3f97719c2e41cc8b2e7151a1fe
Patch-mainline: v4.16-rc5
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
In dce110, the plane configuration is such that plane 0
or the primary plane should be rendered with only RGB data.
This patch adds the validation to ensure that no video data
is rendered on plane 0.
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
@@ -879,6 +879,13 @@ static bool dce110_validate_surface_sets
plane->src_rect.height > 1080))
return false;
+ /* we don't have the logic to support underlay
+ * only yet so block the use case where we get
+ * NV12 plane as top layer
+ */
+ if (j == 0)
+ return false;
+
/* irrespective of plane format,
* stream should be RGB encoded
*/