drm/amd/display: Implement AMD VSIF V3

[Why]
To support V3

[How]
Generate new VSIF for V3

Signed-off-by: Reza Amini <[email protected]>
Reviewed-by: Anthony Koo <[email protected]>
Acked-by: Qingqing Zhuo <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Reza Amini

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

@@ -244,6 +244,25 @@ struct dc_stream_status *dc_stream_get_status(
 	return dc_stream_get_status_from_state(dc->current_state, stream);
 }
 
+#ifndef TRIM_FSFT
+/**
+ * dc_optimize_timing() - dc to optimize timing
+ */
+bool dc_optimize_timing(
+	struct dc_crtc_timing *timing,
+	unsigned int max_input_rate_in_khz)
+{
+	//optimization is expected to assing a value to these:
+	//timing->pix_clk_100hz
+	//timing->v_front_porch
+	//timing->v_total
+	//timing->fast_transport_output_rate_100hz;
+	timing->fast_transport_output_rate_100hz = timing->pix_clk_100hz;
+
+	return true;
+}
+#endif
+
 
 /**
  * dc_stream_set_cursor_attributes() - Update cursor attributes and set cursor surface address

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

@@ -713,6 +713,9 @@ struct dc_crtc_timing_flags {
 	uint32_t LTE_340MCSC_SCRAMBLE:1;
 
 	uint32_t DSC : 1; /* Use DSC with this timing */
+#ifndef TRIM_FSFT
+	uint32_t FAST_TRANSPORT: 1;
+#endif
 };
 
 enum dc_timing_3d_format {
@@ -772,6 +775,10 @@ struct dc_crtc_timing {
 	enum dc_aspect_ratio aspect_ratio;
 	enum scanning_type scan_type;
 
+#ifndef TRIM_FSFT
+	uint32_t fast_transport_output_rate_100hz;
+#endif
+
 	struct dc_crtc_timing_flags flags;
 	struct dc_dsc_config dsc_cfg;
 };

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

@@ -419,6 +419,12 @@ struct dc_stream_status *dc_stream_get_status_from_state(
 struct dc_stream_status *dc_stream_get_status(
 	struct dc_stream_state *dc_stream);
 
+#ifndef TRIM_FSFT
+bool dc_optimize_timing(
+	struct dc_crtc_timing *timing,
+	unsigned int max_input_rate_in_khz);
+#endif
+
 /*******************************************************************************
  * Cursor interfaces - To manages the cursor within a stream
  ******************************************************************************/

drivers/gpu/drm/amd/display/modules/freesync/freesync.c

@@ -760,9 +760,35 @@ static void build_vrr_infopacket_v2(enum signal_type signal,
 
 	infopacket->valid = true;
 }
+#ifndef TRIM_FSFT
+static void build_vrr_infopacket_fast_transport_data(
+	bool ftActive,
+	unsigned int ftOutputRate,
+	struct dc_info_packet *infopacket)
+{
+	/* PB9 : bit7 - fast transport Active*/
+	unsigned char activeBit = (ftActive) ? 1 << 7 : 0;
+
+	infopacket->sb[1] &= ~activeBit;  //clear bit
+	infopacket->sb[1] |=  activeBit;  //set bit
+
+	/* PB13 : Target Output Pixel Rate [kHz] - bits 7:0  */
+	infopacket->sb[13] = ftOutputRate & 0xFF;
+
+	/* PB14 : Target Output Pixel Rate [kHz] - bits 15:8  */
+	infopacket->sb[14] = (ftOutputRate >> 8) & 0xFF;
+
+	/* PB15 : Target Output Pixel Rate [kHz] - bits 23:16  */
+	infopacket->sb[15] = (ftOutputRate >> 16) & 0xFF;
+
+}
+#endif
 
 static void build_vrr_infopacket_v3(enum signal_type signal,
 		const struct mod_vrr_params *vrr,
+#ifndef TRIM_FSFT
+		bool ftActive, unsigned int ftOutputRate,
+#endif
 		enum color_transfer_func app_tf,
 		struct dc_info_packet *infopacket)
 {
@@ -773,6 +799,13 @@ static void build_vrr_infopacket_v3(enum signal_type signal,
 
 	build_vrr_infopacket_fs2_data(app_tf, infopacket);
 
+#ifndef TRIM_FSFT
+	build_vrr_infopacket_fast_transport_data(
+			ftActive,
+			ftOutputRate,
+			infopacket);
+#endif
+
 	build_vrr_infopacket_checksum(&payload_size, infopacket);
 
 	infopacket->valid = true;
@@ -795,7 +828,15 @@ void mod_freesync_build_vrr_infopacket(struct mod_freesync *mod_freesync,
 
 	switch (packet_type) {
 	case PACKET_TYPE_FS_V3:
+#ifndef TRIM_FSFT
+		build_vrr_infopacket_v3(
+				stream->signal, vrr,
+				stream->timing.flags.FAST_TRANSPORT,
+				stream->timing.fast_transport_output_rate_100hz,
+				app_tf, infopacket);
+#else
 		build_vrr_infopacket_v3(stream->signal, vrr, app_tf, infopacket);
+#endif
 		break;
 	case PACKET_TYPE_FS_V2:
 		build_vrr_infopacket_v2(stream->signal, vrr, app_tf, infopacket);