From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Thu, 27 Jul 2017 16:47:14 -0400
Subject: drm/amd/display: Add stateless surface validation to
 validate_resources
Git-commit: f669089aa12ab9b509ed8ff3755e73794b7941ea
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -675,6 +675,21 @@ static bool validate_streams (
 	return true;
 }
 
+static bool validate_surfaces(
+		const struct dc *dc,
+		const struct dc_validation_set set[],
+		int set_count)
+{
+	int i, j;
+
+	for (i = 0; i < set_count; i++)
+		for (j = 0; j < set[i].surface_count; j++)
+			if (!dc_validate_surface(dc, set[i].surfaces[j]))
+				return false;
+
+	return true;
+}
+
 struct validate_context *dc_get_validate_context(
 		const struct dc *dc,
 		const struct dc_validation_set set[],
@@ -726,6 +741,9 @@ bool dc_validate_resources(
 	if (!validate_streams(dc, set, set_count))
 		return false;
 
+	if (!validate_surfaces(dc, set, set_count))
+		return false;
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;
@@ -1065,6 +1083,9 @@ bool dc_commit_streams(
 	if (!validate_streams(dc, set, stream_count))
 		return false;
 
+	if (!validate_surfaces(dc, set, stream_count))
+		return false;
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;