From: Julian Parkin <jparkin@amd.com>
Date: Tue, 17 Apr 2018 11:49:06 -0400
Subject: drm/amd/display: reprogram infoframe during apply_ctx_to_hw
Git-commit: 6b622181230e7c9286f594e4e51266b6f019b031
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

To ensure the infoframe gets updated during an SDR/HDR switch
this change adds a new function to to check if the HDR static
metadata has changed and adds it to is_timing_changed and
pipe_need_reprogram checks

Signed-off-by: Julian Parkin <jparkin@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@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_resource.c |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1310,6 +1310,19 @@ bool dc_add_all_planes_for_stream(
 }
 
 
+static bool is_hdr_static_meta_changed(struct dc_stream_state *cur_stream,
+	struct dc_stream_state *new_stream)
+{
+	if (cur_stream == NULL)
+		return true;
+
+	if (memcmp(&cur_stream->hdr_static_metadata,
+			&new_stream->hdr_static_metadata,
+			sizeof(struct dc_info_packet)) != 0)
+		return true;
+
+	return false;
+}
 
 static bool is_timing_changed(struct dc_stream_state *cur_stream,
 		struct dc_stream_state *new_stream)
@@ -1345,6 +1358,9 @@ static bool are_stream_backends_same(
 	if (is_timing_changed(stream_a, stream_b))
 		return false;
 
+	if (is_hdr_static_meta_changed(stream_a, stream_b))
+		return false;
+
 	return true;
 }
 
@@ -2548,6 +2564,8 @@ bool pipe_need_reprogram(
 	if (is_timing_changed(pipe_ctx_old->stream, pipe_ctx->stream))
 		return true;
 
+	if (is_hdr_static_meta_changed(pipe_ctx_old->stream, pipe_ctx->stream))
+		return true;
 
 	return false;
 }