drm/amd/display: Refactor FreeSync module

Remove dependency on internal sink map and instead
use existing stream and plane state

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@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>

8 files changed, 118 insertions, 173 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 71742635e797..a4df627d6936 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -188,11 +188,9 @@ failed_alloc:
  *****************************************************************************
  */
 bool dc_stream_adjust_vmin_vmax(struct dc *dc,
-		struct dc_stream_state **streams, int num_streams,
-		int vmin, int vmax)
+		struct dc_stream_state *stream,
+		struct dc_crtc_timing_adjust *adjust)
 {
-	/* TODO: Support multiple streams */
-	struct dc_stream_state *stream = streams[0];
 	int i = 0;
 	bool ret = false;
 
@@ -200,11 +198,11 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
 		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 
 		if (pipe->stream == stream && pipe->stream_res.stream_enc) {
-			dc->hwss.set_drr(&pipe, 1, vmin, vmax);
-
-			/* build and update the info frame */
-			resource_build_info_frame(pipe);
-			dc->hwss.update_info_frame(pipe);
+			pipe->stream->adjust = *adjust;
+			dc->hwss.set_drr(&pipe,
+					1,
+					adjust->v_total_min,
+					adjust->v_total_max);
 
 			ret = true;
 		}
@@ -217,7 +215,7 @@ bool dc_stream_get_crtc_position(struct dc *dc,
 		unsigned int *v_pos, unsigned int *nom_v_pos)
 {
 	/* TODO: Support multiple streams */
-	struct dc_stream_state *stream = streams[0];
+	const struct dc_stream_state *stream = streams[0];
 	int i = 0;
 	bool ret = false;
 	struct crtc_position position;
@@ -1257,8 +1255,25 @@ static enum surface_update_type check_update_surfaces_for_stream(
 	if (stream_status == NULL || stream_status->plane_count != surface_count)
 		return UPDATE_TYPE_FULL;
 
-	if (stream_update)
-		return UPDATE_TYPE_FULL;
+	/* some stream updates require passive update */
+	if (stream_update) {
+		if ((stream_update->src.height != 0) &&
+				(stream_update->src.width != 0))
+			return UPDATE_TYPE_FULL;
+
+		if ((stream_update->dst.height != 0) &&
+				(stream_update->dst.width != 0))
+			return UPDATE_TYPE_FULL;
+
+		if (stream_update->out_transfer_func)
+			return UPDATE_TYPE_FULL;
+
+		if (stream_update->hdr_static_metadata)
+			return UPDATE_TYPE_FULL;
+
+		if (stream_update->abm_level)
+			return UPDATE_TYPE_FULL;
+	}
 
 	for (i = 0 ; i < surface_count; i++) {
 		enum surface_update_type type =
@@ -1337,7 +1352,6 @@ static void commit_planes_for_stream(struct dc *dc,
 		return;
 	}
 
-	/* Full fe update*/
 	for (j = 0; j < dc->res_pool->pipe_count; j++) {
 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
 
@@ -1348,11 +1362,22 @@ static void commit_planes_for_stream(struct dc *dc,
 
 			top_pipe_to_program = pipe_ctx;
 
-			if (update_type == UPDATE_TYPE_FAST || !pipe_ctx->plane_state)
+			if (!pipe_ctx->plane_state)
+				continue;
+
+			/* Fast update*/
+			// VRR program can be done as part of FAST UPDATE
+			if (stream_update && stream_update->adjust)
+				dc->hwss.set_drr(&pipe_ctx, 1,
+					stream_update->adjust->v_total_min,
+					stream_update->adjust->v_total_max);
+
+			/* Full fe update*/
+			if (update_type == UPDATE_TYPE_FAST)
 				continue;
 
 			stream_status =
-					stream_get_status(context, pipe_ctx->stream);
+				stream_get_status(context, pipe_ctx->stream);
 
 			dc->hwss.apply_ctx_for_surface(
 					dc, pipe_ctx->stream, stream_status->plane_count, context);
@@ -1407,7 +1432,7 @@ static void commit_planes_for_stream(struct dc *dc,
 		dc->hwss.pipe_control_lock(dc, top_pipe_to_program, false);
 	}
 
-	if (stream && stream_update && update_type > UPDATE_TYPE_FAST)
+	if (stream && stream_update)
 		for (j = 0; j < dc->res_pool->pipe_count; j++) {
 			struct pipe_ctx *pipe_ctx =
 					&context->res_ctx.pipe_ctx[j];
@@ -1415,7 +1440,8 @@ static void commit_planes_for_stream(struct dc *dc,
 			if (pipe_ctx->stream != stream)
 				continue;
 
-			if (stream_update->hdr_static_metadata) {
+			if (stream_update->hdr_static_metadata ||
+				(stream_update->vrr_infopacket)) {
 				resource_build_info_frame(pipe_ctx);
 				dc->hwss.update_info_frame(pipe_ctx);
 			}
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index a7553b6d59c2..d91df5ef0cb3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2389,6 +2389,9 @@ static bool retrieve_link_cap(struct dc_link *link)
 
 	dp_wa_power_up_0010FA(link, dpcd_data, sizeof(dpcd_data));
 
+	down_strm_port_count.raw = dpcd_data[DP_DOWN_STREAM_PORT_COUNT -
+				 DP_DPCD_REV];
+
 	link->dpcd_caps.allow_invalid_MSA_timing_param =
 		down_strm_port_count.bits.IGNORE_MSA_TIMING_PARAM;
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 2c348b11b9a5..4468b240929a 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2475,119 +2475,13 @@ static void set_spd_info_packet(
 {
 	/* SPD info packet for FreeSync */
 
-	unsigned char checksum = 0;
-	unsigned int idx, payload_size = 0;
-
 	/* Check if Freesync is supported. Return if false. If true,
 	 * set the corresponding bit in the info packet
 	 */
-	if (stream->freesync_ctx.supported == false)
+	if (!stream->vrr_infopacket.valid)
 		return;
 
-	if (dc_is_hdmi_signal(stream->signal)) {
-
-		/* HEADER */
-
-		/* HB0  = Packet Type = 0x83 (Source Product
-		 *	  Descriptor InfoFrame)
-		 */
-		info_packet->hb0 = HDMI_INFOFRAME_TYPE_SPD;
-
-		/* HB1  = Version = 0x01 */
-		info_packet->hb1 = 0x01;
-
-		/* HB2  = [Bits 7:5 = 0] [Bits 4:0 = Length = 0x08] */
-		info_packet->hb2 = 0x08;
-
-		payload_size = 0x08;
-
-	} else if (dc_is_dp_signal(stream->signal)) {
-
-		/* HEADER */
-
-		/* HB0  = Secondary-data Packet ID = 0 - Only non-zero
-		 *	  when used to associate audio related info packets
-		 */
-		info_packet->hb0 = 0x00;
-
-		/* HB1  = Packet Type = 0x83 (Source Product
-		 *	  Descriptor InfoFrame)
-		 */
-		info_packet->hb1 = HDMI_INFOFRAME_TYPE_SPD;
-
-		/* HB2  = [Bits 7:0 = Least significant eight bits -
-		 *	  For INFOFRAME, the value must be 1Bh]
-		 */
-		info_packet->hb2 = 0x1B;
-
-		/* HB3  = [Bits 7:2 = INFOFRAME SDP Version Number = 0x1]
-		 *	  [Bits 1:0 = Most significant two bits = 0x00]
-		 */
-		info_packet->hb3 = 0x04;
-
-		payload_size = 0x1B;
-	}
-
-	/* PB1 = 0x1A (24bit AMD IEEE OUI (0x00001A) - Byte 0) */
-	info_packet->sb[1] = 0x1A;
-
-	/* PB2 = 0x00 (24bit AMD IEEE OUI (0x00001A) - Byte 1) */
-	info_packet->sb[2] = 0x00;
-
-	/* PB3 = 0x00 (24bit AMD IEEE OUI (0x00001A) - Byte 2) */
-	info_packet->sb[3] = 0x00;
-
-	/* PB4 = Reserved */
-	info_packet->sb[4] = 0x00;
-
-	/* PB5 = Reserved */
-	info_packet->sb[5] = 0x00;
-
-	/* PB6 = [Bits 7:3 = Reserved] */
-	info_packet->sb[6] = 0x00;
-
-	if (stream->freesync_ctx.supported == true)
-		/* PB6 = [Bit 0 = FreeSync Supported] */
-		info_packet->sb[6] |= 0x01;
-
-	if (stream->freesync_ctx.enabled == true)
-		/* PB6 = [Bit 1 = FreeSync Enabled] */
-		info_packet->sb[6] |= 0x02;
-
-	if (stream->freesync_ctx.active == true)
-		/* PB6 = [Bit 2 = FreeSync Active] */
-		info_packet->sb[6] |= 0x04;
-
-	/* PB7 = FreeSync Minimum refresh rate (Hz) */
-	info_packet->sb[7] = (unsigned char) (stream->freesync_ctx.
-			min_refresh_in_micro_hz / 1000000);
-
-	/* PB8 = FreeSync Maximum refresh rate (Hz)
-	 *
-	 * Note: We do not use the maximum capable refresh rate
-	 * of the panel, because we should never go above the field
-	 * rate of the mode timing set.
-	 */
-	info_packet->sb[8] = (unsigned char) (stream->freesync_ctx.
-			nominal_refresh_in_micro_hz / 1000000);
-
-	/* PB9 - PB27  = Reserved */
-	for (idx = 9; idx <= 27; idx++)
-		info_packet->sb[idx] = 0x00;
-
-	/* Calculate checksum */
-	checksum += info_packet->hb0;
-	checksum += info_packet->hb1;
-	checksum += info_packet->hb2;
-	checksum += info_packet->hb3;
-
-	for (idx = 1; idx <= payload_size; idx++)
-		checksum += info_packet->sb[idx];
-
-	/* PB0 = Checksum (one byte complement) */
-	info_packet->sb[0] = (unsigned char) (0x100 - checksum);
-
-	info_packet->valid = true;
+	*info_packet = stream->vrr_infopacket;
 }
 
 static void set_hdr_static_info_packet(
diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
index b789cb2b354b..57f57cf0fe2a 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
@@ -708,12 +708,6 @@ struct crtc_trigger_info {
 	enum trigger_delay delay;
 };
 
-enum vrr_state {
-	VRR_STATE_OFF = 0,
-	VRR_STATE_VARIABLE,
-	VRR_STATE_FIXED,
-};
-
 struct dc_crtc_timing_adjust {
 	uint32_t v_total_min;
 	uint32_t v_total_max;
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index cbfe418006cb..67101a525e3d 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -45,19 +45,25 @@ struct dc_stream_status {
 	struct dc_link *link;
 };
 
+// TODO: References to this needs to be removed..
+struct freesync_context {
+	bool dummy;
+};
+
 struct dc_stream_state {
 	struct dc_sink *sink;
 	struct dc_crtc_timing timing;
-	struct dc_crtc_timing_adjust timing_adjust;
-	struct vrr_params vrr_params;
+	struct dc_crtc_timing_adjust adjust;
+	struct dc_info_packet vrr_infopacket;
 
 	struct rect src; /* composition area */
 	struct rect dst; /* stream addressable area */
 
-	struct audio_info audio_info;
-
+	// TODO: References to this needs to be removed..
 	struct freesync_context freesync_ctx;
 
+	struct audio_info audio_info;
+
 	struct dc_info_packet hdr_static_metadata;
 	PHYSICAL_ADDRESS_LOC dmdata_address;
 	bool   use_dynamic_meta;
@@ -120,6 +126,8 @@ struct dc_stream_update {
 	unsigned int *abm_level;
 
 	unsigned long long *periodic_fn_vsync_delta;
+	struct dc_crtc_timing_adjust *adjust;
+	struct dc_info_packet *vrr_infopacket;
 };
 
 bool dc_is_stream_unchanged(
@@ -258,10 +266,8 @@ bool dc_stream_set_cursor_position(
 
 
 bool dc_stream_adjust_vmin_vmax(struct dc *dc,
-				struct dc_stream_state **stream,
-				int num_streams,
-				int vmin,
-				int vmax);
+				struct dc_stream_state *stream,
+				struct dc_crtc_timing_adjust *adjust);
 
 bool dc_stream_get_crtc_position(struct dc *dc,
 				 struct dc_stream_state **stream,
@@ -288,13 +294,6 @@ void dc_stream_set_static_screen_events(struct dc *dc,
 void dc_stream_set_dither_option(struct dc_stream_state *stream,
 				 enum dc_dither_option option);
 
-
-bool dc_stream_adjust_vmin_vmax(struct dc *dc,
-				struct dc_stream_state **stream,
-				int num_streams,
-				int vmin,
-				int vmax);
-
 bool dc_stream_get_crtc_position(struct dc *dc,
 				 struct dc_stream_state **stream,
 				 int num_streams,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 8c6eb78b0c3b..58a6ef80a60e 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -513,13 +513,11 @@ struct audio_info {
 	struct audio_mode modes[DC_MAX_AUDIO_DESC_COUNT];
 };
 
-struct vrr_params {
-	enum vrr_state state;
-	uint32_t window_min;
-	uint32_t window_max;
-	uint32_t inserted_frame_duration_in_us;
-	uint32_t frames_to_insert;
-	uint32_t frame_counter;
+enum dc_infoframe_type {
+	DC_HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
+	DC_HDMI_INFOFRAME_TYPE_AVI = 0x82,
+	DC_HDMI_INFOFRAME_TYPE_SPD = 0x83,
+	DC_HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
 };
 
 struct dc_info_packet {
@@ -539,16 +537,6 @@ struct dc_plane_flip_time {
 	unsigned int prev_update_time_in_us;
 };
 
-// Will combine with vrr_params at some point.
-struct freesync_context {
-	bool supported;
-	bool enabled;
-	bool active;
-
-	unsigned int min_refresh_in_micro_hz;
-	unsigned int nominal_refresh_in_micro_hz;
-};
-
 struct psr_config {
 	unsigned char psr_version;
 	unsigned int psr_rfb_setup_time;
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 2f2c5155c5aa..ae4792494fe7 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1286,6 +1286,8 @@ static enum dc_status dce110_enable_stream_timing(
 	struct pipe_ctx *pipe_ctx_old = &dc->current_state->res_ctx.
 			pipe_ctx[pipe_ctx->pipe_idx];
 	struct tg_color black_color = {0};
+	struct drr_params params = {0};
+	unsigned int event_triggers = 0;
 
 	if (!pipe_ctx_old->stream) {
 
@@ -1315,9 +1317,19 @@ static enum dc_status dce110_enable_stream_timing(
 				&stream->timing,
 				true);
 
-		pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
-				pipe_ctx->stream_res.tg,
-				0x182);
+		params.vertical_total_min = stream->adjust.v_total_min;
+		params.vertical_total_max = stream->adjust.v_total_max;
+		if (pipe_ctx->stream_res.tg->funcs->set_drr)
+			pipe_ctx->stream_res.tg->funcs->set_drr(
+				pipe_ctx->stream_res.tg, &params);
+
+		// DRR should set trigger event to monitor surface update event
+		if (stream->adjust.v_total_min != 0 &&
+				stream->adjust.v_total_max != 0)
+			event_triggers = 0x80;
+		if (pipe_ctx->stream_res.tg->funcs->set_static_screen_control)
+			pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
+				pipe_ctx->stream_res.tg, event_triggers);
 	}
 
 	if (!pipe_ctx_old->stream) {
@@ -1328,8 +1340,6 @@ static enum dc_status dce110_enable_stream_timing(
 		}
 	}
 
-
-
 	return DC_OK;
 }
 
@@ -1719,16 +1729,24 @@ static void set_drr(struct pipe_ctx **pipe_ctx,
 {
 	int i = 0;
 	struct drr_params params = {0};
+	// DRR should set trigger event to monitor surface update event
+	unsigned int event_triggers = 0x80;
 
 	params.vertical_total_max = vmax;
 	params.vertical_total_min = vmin;
 
 	/* TODO: If multiple pipes are to be supported, you need
-	 * some GSL stuff
+	 * some GSL stuff. Static screen triggers may be programmed differently
+	 * as well.
 	 */
-
 	for (i = 0; i < num_pipes; i++) {
-		pipe_ctx[i]->stream_res.tg->funcs->set_drr(pipe_ctx[i]->stream_res.tg, &params);
+		pipe_ctx[i]->stream_res.tg->funcs->set_drr(
+			pipe_ctx[i]->stream_res.tg, &params);
+
+		if (vmax != 0 && vmin != 0)
+			pipe_ctx[i]->stream_res.tg->funcs->set_static_screen_control(
+					pipe_ctx[i]->stream_res.tg,
+					event_triggers);
 	}
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 6d27f1db3c69..4b8bedb625b4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -631,6 +631,8 @@ static enum dc_status dcn10_enable_stream_timing(
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	enum dc_color_space color_space;
 	struct tg_color black_color = {0};
+	struct drr_params params = {0};
+	unsigned int event_triggers = 0;
 
 	/* by upper caller loop, pipe0 is parent pipe and be called first.
 	 * back end is set up by for pipe0. Other children pipe share back end
@@ -698,6 +700,19 @@ static enum dc_status dcn10_enable_stream_timing(
 		return DC_ERROR_UNEXPECTED;
 	}
 
+	params.vertical_total_min = stream->adjust.v_total_min;
+	params.vertical_total_max = stream->adjust.v_total_max;
+	if (pipe_ctx->stream_res.tg->funcs->set_drr)
+		pipe_ctx->stream_res.tg->funcs->set_drr(
+			pipe_ctx->stream_res.tg, &params);
+
+	// DRR should set trigger event to monitor surface update event
+	if (stream->adjust.v_total_min != 0 && stream->adjust.v_total_max != 0)
+		event_triggers = 0x80;
+	if (pipe_ctx->stream_res.tg->funcs->set_static_screen_control)
+		pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
+				pipe_ctx->stream_res.tg, event_triggers);
+
 	/* TODO program crtc source select for non-virtual signal*/
 	/* TODO program FMT */
 	/* TODO setup link_enc */
@@ -2399,15 +2414,23 @@ static void set_drr(struct pipe_ctx **pipe_ctx,
 {
 	int i = 0;
 	struct drr_params params = {0};
+	// DRR should set trigger event to monitor surface update event
+	unsigned int event_triggers = 0x80;
 
 	params.vertical_total_max = vmax;
 	params.vertical_total_min = vmin;
 
 	/* TODO: If multiple pipes are to be supported, you need
-	 * some GSL stuff
+	 * some GSL stuff. Static screen triggers may be programmed differently
+	 * as well.
 	 */
 	for (i = 0; i < num_pipes; i++) {
-		pipe_ctx[i]->stream_res.tg->funcs->set_drr(pipe_ctx[i]->stream_res.tg, &params);
+		pipe_ctx[i]->stream_res.tg->funcs->set_drr(
+			pipe_ctx[i]->stream_res.tg, &params);
+		if (vmax != 0 && vmin != 0)
+			pipe_ctx[i]->stream_res.tg->funcs->set_static_screen_control(
+					pipe_ctx[i]->stream_res.tg,
+					event_triggers);
 	}
 }