drm/amd/display: Adding VTEM to dc

[Why]
Video Timing Extended Metadata packet (VTEM) is required for features
like VRR and FVA

[How]
Adding support for VTEM transmission to stream encoders in DCN20 and DCN30
as part of FVA support
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ahmad Othman <ahmad.othman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -2661,6 +2661,9 @@ static void copy_stream_update_to_stream(struct dc *dc,
 	if (update->hfvsif_infopacket)
 		stream->hfvsif_infopacket = *update->hfvsif_infopacket;
 
+	if (update->vtem_infopacket)
+		stream->vtem_infopacket = *update->vtem_infopacket;
+
 	if (update->vsc_infopacket)
 		stream->vsc_infopacket = *update->vsc_infopacket;
 
@@ -2736,7 +2739,8 @@ static void commit_planes_do_stream_update(struct dc *dc,
 					stream_update->vrr_infopacket ||
 					stream_update->vsc_infopacket ||
 					stream_update->vsp_infopacket ||
-					stream_update->hfvsif_infopacket) {
+					stream_update->hfvsif_infopacket ||
+					stream_update->vtem_infopacket) {
 				resource_build_info_frame(pipe_ctx);
 				dc->hwss.update_info_frame(pipe_ctx);
 

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

@@ -2816,6 +2816,17 @@ static void set_hfvs_info_packet(
 	*info_packet = stream->hfvsif_infopacket;
 }
 
+
+static void set_vtem_info_packet(
+		struct dc_info_packet *info_packet,
+		struct dc_stream_state *stream)
+{
+	if (!stream->vtem_infopacket.valid)
+		return;
+
+	*info_packet = stream->vtem_infopacket;
+}
+
 void dc_resource_state_destruct(struct dc_state *context)
 {
 	int i, j;
@@ -2896,7 +2907,7 @@ void resource_build_info_frame(struct pipe_ctx *pipe_ctx)
 	info->hdrsmd.valid = false;
 	info->vsc.valid = false;
 	info->hfvsif.valid = false;
-
+	info->vtem.valid = false;
 	signal = pipe_ctx->stream->signal;
 
 	/* HDMi and DP have different info packets*/
@@ -2905,6 +2916,7 @@ void resource_build_info_frame(struct pipe_ctx *pipe_ctx)
 
 		set_vendor_info_packet(&info->vendor, pipe_ctx->stream);
 		set_hfvs_info_packet(&info->hfvsif, pipe_ctx->stream);
+		set_vtem_info_packet(&info->vtem, pipe_ctx->stream);
 
 		set_spd_info_packet(&info->spd, pipe_ctx->stream);
 

drivers/gpu/drm/amd/display/dc/dc_stream.h

@@ -181,6 +181,7 @@ struct dc_stream_state {
 	struct dc_info_packet vsc_infopacket;
 	struct dc_info_packet vsp_infopacket;
 	struct dc_info_packet hfvsif_infopacket;
+	struct dc_info_packet vtem_infopacket;
 	uint8_t dsc_packed_pps[128];
 	struct rect src; /* composition area */
 	struct rect dst; /* stream addressable area */
@@ -298,6 +299,7 @@ struct dc_stream_update {
 	struct dc_info_packet *vsc_infopacket;
 	struct dc_info_packet *vsp_infopacket;
 	struct dc_info_packet *hfvsif_infopacket;
+	struct dc_info_packet *vtem_infopacket;
 	bool *dpms_off;
 	bool integer_scaling_update;
 	bool *allow_freesync;

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c

@@ -159,6 +159,7 @@ static void enc2_stream_encoder_update_hdmi_info_packets(
 	enc2_update_hdmi_info_packet(enc1, 3, &info_frame->vendor);
 	enc2_update_hdmi_info_packet(enc1, 4, &info_frame->spd);
 	enc2_update_hdmi_info_packet(enc1, 5, &info_frame->hdrsmd);
+	enc2_update_hdmi_info_packet(enc1, 6, &info_frame->vtem);
 }
 
 static void enc2_stream_encoder_stop_hdmi_info_packets(

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dio_stream_encoder.c

@@ -212,6 +212,7 @@ void enc3_stream_encoder_update_hdmi_info_packets(
 	enc3_update_hdmi_info_packet(enc1, 1, &info_frame->vendor);
 	enc3_update_hdmi_info_packet(enc1, 3, &info_frame->spd);
 	enc3_update_hdmi_info_packet(enc1, 4, &info_frame->hdrsmd);
+	enc3_update_hdmi_info_packet(enc1, 6, &info_frame->vtem);
 }
 
 void enc3_stream_encoder_stop_hdmi_info_packets(

drivers/gpu/drm/amd/display/dc/inc/hw/stream_encoder.h

@@ -77,6 +77,7 @@ struct encoder_info_frame {
 	struct dc_info_packet gamut;
 	struct dc_info_packet vendor;
 	struct dc_info_packet hfvsif;
+	struct dc_info_packet vtem;
 	/* source product description */
 	struct dc_info_packet spd;
 	/* video stream configuration */