From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Fri, 19 May 2017 17:40:50 -0400
Subject: drm/amd/display: program scaler not called.
Git-commit: c1473558e617d886276e4a8b3c139b681d90d67c
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Scaler code in case of UPDATE_TYPE_MED was not called
since new pipe context and current context are the same.

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@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                    |   23 ++++++++++--
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c |    6 +--
 2 files changed, 23 insertions(+), 6 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1011,12 +1011,23 @@ bool dc_commit_surfaces_to_stream(
 	struct dc_plane_info plane_info[MAX_SURFACES];
 	struct dc_scaling_info scaling_info[MAX_SURFACES];
 	int i;
+	bool ret;
+	struct dc_stream_update *stream_update =
+			dm_alloc(sizeof(struct dc_stream_update));
+
+	if (!stream_update) {
+		BREAK_TO_DEBUGGER();
+		return false;
+	}
 
 	memset(updates, 0, sizeof(updates));
 	memset(flip_addr, 0, sizeof(flip_addr));
 	memset(plane_info, 0, sizeof(plane_info));
 	memset(scaling_info, 0, sizeof(scaling_info));
 
+	stream_update->src = dc_stream->src;
+	stream_update->dst = dc_stream->dst;
+
 	for (i = 0; i < new_surface_count; i++) {
 		updates[i].surface = new_surfaces[i];
 		updates[i].gamma =
@@ -1041,9 +1052,17 @@ bool dc_commit_surfaces_to_stream(
 		updates[i].plane_info = &plane_info[i];
 		updates[i].scaling_info = &scaling_info[i];
 	}
-	dc_update_surfaces_for_stream(dc, updates, new_surface_count, dc_stream);
 
-	return dc_post_update_surfaces_to_stream(dc);
+	dc_update_surfaces_and_stream(
+			dc,
+			updates,
+			new_surface_count,
+			dc_stream, stream_update);
+
+	ret = dc_post_update_surfaces_to_stream(dc);
+
+	dm_free(stream_update);
+	return ret;
 }
 
 static bool is_surface_in_context(
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2408,10 +2408,8 @@ static void dce110_program_front_end_for
 	pipe_ctx->xfm->funcs->transform_set_gamut_remap(pipe_ctx->xfm, &adjust);
 
 	pipe_ctx->scl_data.lb_params.alpha_en = pipe_ctx->bottom_pipe != 0;
-	if (old_pipe && memcmp(&old_pipe->scl_data,
-				&pipe_ctx->scl_data,
-				sizeof(struct scaler_data)) != 0)
-		program_scaler(dc, pipe_ctx);
+
+	program_scaler(dc, pipe_ctx);
 
 	mi->funcs->mem_input_program_surface_config(
 			mi,