drm/amd/display: move dp cts functions from dc_link_dp to link_dp_cts

Create new files link_dp_cts.c and link_dp_cts.h, and move DP cts
functions into them.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

6 files changed, 1090 insertions, 1023 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 79d25d3f2871..24daadf587fd 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -4095,110 +4095,6 @@ void core_link_set_avmute(struct pipe_ctx *pipe_ctx, bool enable)
 	dc->hwss.set_avmute(pipe_ctx, enable);
 }
 
-void dc_link_set_drive_settings(struct dc *dc,
-				struct link_training_settings *lt_settings,
-				const struct dc_link *link)
-{
-
-	int i;
-	struct link_resource link_res;
-
-	for (i = 0; i < dc->link_count; i++)
-		if (dc->links[i] == link)
-			break;
-
-	if (i >= dc->link_count)
-		ASSERT_CRITICAL(false);
-
-	dc_link_get_cur_link_res(link, &link_res);
-	dp_set_drive_settings(dc->links[i], &link_res, lt_settings);
-}
-
-void dc_link_set_preferred_link_settings(struct dc *dc,
-					 struct dc_link_settings *link_setting,
-					 struct dc_link *link)
-{
-	int i;
-	struct pipe_ctx *pipe;
-	struct dc_stream_state *link_stream;
-	struct dc_link_settings store_settings = *link_setting;
-
-	link->preferred_link_setting = store_settings;
-
-	/* Retrain with preferred link settings only relevant for
-	 * DP signal type
-	 * Check for non-DP signal or if passive dongle present
-	 */
-	if (!dc_is_dp_signal(link->connector_signal) ||
-		link->dongle_max_pix_clk > 0)
-		return;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
-		if (pipe->stream && pipe->stream->link) {
-			if (pipe->stream->link == link) {
-				link_stream = pipe->stream;
-				break;
-			}
-		}
-	}
-
-	/* Stream not found */
-	if (i == MAX_PIPES)
-		return;
-
-	/* Cannot retrain link if backend is off */
-	if (link_stream->dpms_off)
-		return;
-
-	if (link_decide_link_settings(link_stream, &store_settings))
-		dp_retrain_link_dp_test(link, &store_settings, false);
-}
-
-void dc_link_set_preferred_training_settings(struct dc *dc,
-						 struct dc_link_settings *link_setting,
-						 struct dc_link_training_overrides *lt_overrides,
-						 struct dc_link *link,
-						 bool skip_immediate_retrain)
-{
-	if (lt_overrides != NULL)
-		link->preferred_training_settings = *lt_overrides;
-	else
-		memset(&link->preferred_training_settings, 0, sizeof(link->preferred_training_settings));
-
-	if (link_setting != NULL) {
-		link->preferred_link_setting = *link_setting;
-	} else {
-		link->preferred_link_setting.lane_count = LANE_COUNT_UNKNOWN;
-		link->preferred_link_setting.link_rate = LINK_RATE_UNKNOWN;
-	}
-
-	if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT &&
-			link->type == dc_connection_mst_branch)
-		dm_helpers_dp_mst_update_branch_bandwidth(dc->ctx, link);
-
-	/* Retrain now, or wait until next stream update to apply */
-	if (skip_immediate_retrain == false)
-		dc_link_set_preferred_link_settings(dc, &link->preferred_link_setting, link);
-}
-
-void dc_link_set_test_pattern(struct dc_link *link,
-			      enum dp_test_pattern test_pattern,
-			      enum dp_test_pattern_color_space test_pattern_color_space,
-			      const struct link_training_settings *p_link_settings,
-			      const unsigned char *p_custom_pattern,
-			      unsigned int cust_pattern_size)
-{
-	if (link != NULL)
-		dc_link_dp_set_test_pattern(
-			link,
-			test_pattern,
-			test_pattern_color_space,
-			p_link_settings,
-			p_custom_pattern,
-			cust_pattern_size);
-}
-
 uint32_t dc_link_bandwidth_kbps(
 	const struct dc_link *link,
 	const struct dc_link_settings *link_setting)
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 21cc51923782..6b87aa723d52 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
@@ -104,884 +104,6 @@ bool dp_validate_mode_timing(
 		return false;
 }
 
-static enum dc_link_rate get_link_rate_from_test_link_rate(uint8_t test_rate)
-{
-	switch (test_rate) {
-	case DP_TEST_LINK_RATE_RBR:
-		return LINK_RATE_LOW;
-	case DP_TEST_LINK_RATE_HBR:
-		return LINK_RATE_HIGH;
-	case DP_TEST_LINK_RATE_HBR2:
-		return LINK_RATE_HIGH2;
-	case DP_TEST_LINK_RATE_HBR3:
-		return LINK_RATE_HIGH3;
-	case DP_TEST_LINK_RATE_UHBR10:
-		return LINK_RATE_UHBR10;
-	case DP_TEST_LINK_RATE_UHBR20:
-		return LINK_RATE_UHBR20;
-	case DP_TEST_LINK_RATE_UHBR13_5:
-		return LINK_RATE_UHBR13_5;
-	default:
-		return LINK_RATE_UNKNOWN;
-	}
-}
-
-static void dp_test_send_link_training(struct dc_link *link)
-{
-	struct dc_link_settings link_settings = {0};
-	uint8_t test_rate = 0;
-
-	core_link_read_dpcd(
-			link,
-			DP_TEST_LANE_COUNT,
-			(unsigned char *)(&link_settings.lane_count),
-			1);
-	core_link_read_dpcd(
-			link,
-			DP_TEST_LINK_RATE,
-			&test_rate,
-			1);
-	link_settings.link_rate = get_link_rate_from_test_link_rate(test_rate);
-
-	/* Set preferred link settings */
-	link->verified_link_cap.lane_count = link_settings.lane_count;
-	link->verified_link_cap.link_rate = link_settings.link_rate;
-
-	dp_retrain_link_dp_test(link, &link_settings, false);
-}
-
-static bool is_dp_phy_sqaure_pattern(enum dp_test_pattern test_pattern)
-{
-	return (DP_TEST_PATTERN_SQUARE_BEGIN <= test_pattern &&
-			test_pattern <= DP_TEST_PATTERN_SQUARE_END);
-}
-
-/* TODO Raven hbr2 compliance eye output is unstable
- * (toggling on and off) with debugger break
- * This caueses intermittent PHY automation failure
- * Need to look into the root cause */
-static void dp_test_send_phy_test_pattern(struct dc_link *link)
-{
-	union phy_test_pattern dpcd_test_pattern;
-	union lane_adjust dpcd_lane_adjustment[2];
-	unsigned char dpcd_post_cursor_2_adjustment = 0;
-	unsigned char test_pattern_buffer[
-			(DP_TEST_264BIT_CUSTOM_PATTERN_263_256 -
-			DP_TEST_264BIT_CUSTOM_PATTERN_7_0)+1] = {0};
-	unsigned int test_pattern_size = 0;
-	enum dp_test_pattern test_pattern;
-	union lane_adjust dpcd_lane_adjust;
-	unsigned int lane;
-	struct link_training_settings link_training_settings;
-	unsigned char no_preshoot = 0;
-	unsigned char no_deemphasis = 0;
-
-	dpcd_test_pattern.raw = 0;
-	memset(dpcd_lane_adjustment, 0, sizeof(dpcd_lane_adjustment));
-	memset(&link_training_settings, 0, sizeof(link_training_settings));
-
-	/* get phy test pattern and pattern parameters from DP receiver */
-	core_link_read_dpcd(
-			link,
-			DP_PHY_TEST_PATTERN,
-			&dpcd_test_pattern.raw,
-			sizeof(dpcd_test_pattern));
-	core_link_read_dpcd(
-			link,
-			DP_ADJUST_REQUEST_LANE0_1,
-			&dpcd_lane_adjustment[0].raw,
-			sizeof(dpcd_lane_adjustment));
-
-	/* prepare link training settings */
-	link_training_settings.link_settings = link->cur_link_settings;
-
-	link_training_settings.lttpr_mode = dc_link_decide_lttpr_mode(link, &link->cur_link_settings);
-
-	if ((link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&
-			link_training_settings.lttpr_mode == LTTPR_MODE_TRANSPARENT)
-		dp_fixed_vs_pe_read_lane_adjust(
-				link,
-				link_training_settings.dpcd_lane_settings);
-
-	/*get post cursor 2 parameters
-	 * For DP 1.1a or eariler, this DPCD register's value is 0
-	 * For DP 1.2 or later:
-	 * Bits 1:0 = POST_CURSOR2_LANE0; Bits 3:2 = POST_CURSOR2_LANE1
-	 * Bits 5:4 = POST_CURSOR2_LANE2; Bits 7:6 = POST_CURSOR2_LANE3
-	 */
-	core_link_read_dpcd(
-			link,
-			DP_ADJUST_REQUEST_POST_CURSOR2,
-			&dpcd_post_cursor_2_adjustment,
-			sizeof(dpcd_post_cursor_2_adjustment));
-
-	/* translate request */
-	switch (dpcd_test_pattern.bits.PATTERN) {
-	case PHY_TEST_PATTERN_D10_2:
-		test_pattern = DP_TEST_PATTERN_D102;
-		break;
-	case PHY_TEST_PATTERN_SYMBOL_ERROR:
-		test_pattern = DP_TEST_PATTERN_SYMBOL_ERROR;
-		break;
-	case PHY_TEST_PATTERN_PRBS7:
-		test_pattern = DP_TEST_PATTERN_PRBS7;
-		break;
-	case PHY_TEST_PATTERN_80BIT_CUSTOM:
-		test_pattern = DP_TEST_PATTERN_80BIT_CUSTOM;
-		break;
-	case PHY_TEST_PATTERN_CP2520_1:
-		/* CP2520 pattern is unstable, temporarily use TPS4 instead */
-		test_pattern = (link->dc->caps.force_dp_tps4_for_cp2520 == 1) ?
-				DP_TEST_PATTERN_TRAINING_PATTERN4 :
-				DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE;
-		break;
-	case PHY_TEST_PATTERN_CP2520_2:
-		/* CP2520 pattern is unstable, temporarily use TPS4 instead */
-		test_pattern = (link->dc->caps.force_dp_tps4_for_cp2520 == 1) ?
-				DP_TEST_PATTERN_TRAINING_PATTERN4 :
-				DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE;
-		break;
-	case PHY_TEST_PATTERN_CP2520_3:
-		test_pattern = DP_TEST_PATTERN_TRAINING_PATTERN4;
-		break;
-	case PHY_TEST_PATTERN_128b_132b_TPS1:
-		test_pattern = DP_TEST_PATTERN_128b_132b_TPS1;
-		break;
-	case PHY_TEST_PATTERN_128b_132b_TPS2:
-		test_pattern = DP_TEST_PATTERN_128b_132b_TPS2;
-		break;
-	case PHY_TEST_PATTERN_PRBS9:
-		test_pattern = DP_TEST_PATTERN_PRBS9;
-		break;
-	case PHY_TEST_PATTERN_PRBS11:
-		test_pattern = DP_TEST_PATTERN_PRBS11;
-		break;
-	case PHY_TEST_PATTERN_PRBS15:
-		test_pattern = DP_TEST_PATTERN_PRBS15;
-		break;
-	case PHY_TEST_PATTERN_PRBS23:
-		test_pattern = DP_TEST_PATTERN_PRBS23;
-		break;
-	case PHY_TEST_PATTERN_PRBS31:
-		test_pattern = DP_TEST_PATTERN_PRBS31;
-		break;
-	case PHY_TEST_PATTERN_264BIT_CUSTOM:
-		test_pattern = DP_TEST_PATTERN_264BIT_CUSTOM;
-		break;
-	case PHY_TEST_PATTERN_SQUARE:
-		test_pattern = DP_TEST_PATTERN_SQUARE;
-		break;
-	case PHY_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED:
-		test_pattern = DP_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED;
-		no_preshoot = 1;
-		break;
-	case PHY_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED:
-		test_pattern = DP_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED;
-		no_deemphasis = 1;
-		break;
-	case PHY_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED:
-		test_pattern = DP_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED;
-		no_preshoot = 1;
-		no_deemphasis = 1;
-		break;
-	default:
-		test_pattern = DP_TEST_PATTERN_VIDEO_MODE;
-	break;
-	}
-
-	if (test_pattern == DP_TEST_PATTERN_80BIT_CUSTOM) {
-		test_pattern_size = (DP_TEST_80BIT_CUSTOM_PATTERN_79_72 -
-				DP_TEST_80BIT_CUSTOM_PATTERN_7_0) + 1;
-		core_link_read_dpcd(
-				link,
-				DP_TEST_80BIT_CUSTOM_PATTERN_7_0,
-				test_pattern_buffer,
-				test_pattern_size);
-	}
-
-	if (is_dp_phy_sqaure_pattern(test_pattern)) {
-		test_pattern_size = 1; // Square pattern data is 1 byte (DP spec)
-		core_link_read_dpcd(
-				link,
-				DP_PHY_SQUARE_PATTERN,
-				test_pattern_buffer,
-				test_pattern_size);
-	}
-
-	if (test_pattern == DP_TEST_PATTERN_264BIT_CUSTOM) {
-		test_pattern_size = (DP_TEST_264BIT_CUSTOM_PATTERN_263_256-
-				DP_TEST_264BIT_CUSTOM_PATTERN_7_0) + 1;
-		core_link_read_dpcd(
-				link,
-				DP_TEST_264BIT_CUSTOM_PATTERN_7_0,
-				test_pattern_buffer,
-				test_pattern_size);
-	}
-
-	for (lane = 0; lane <
-		(unsigned int)(link->cur_link_settings.lane_count);
-		lane++) {
-		dpcd_lane_adjust.raw =
-			dp_get_nibble_at_index(&dpcd_lane_adjustment[0].raw, lane);
-		if (link_dp_get_encoding_format(&link->cur_link_settings) ==
-				DP_8b_10b_ENCODING) {
-			link_training_settings.hw_lane_settings[lane].VOLTAGE_SWING =
-				(enum dc_voltage_swing)
-				(dpcd_lane_adjust.bits.VOLTAGE_SWING_LANE);
-			link_training_settings.hw_lane_settings[lane].PRE_EMPHASIS =
-				(enum dc_pre_emphasis)
-				(dpcd_lane_adjust.bits.PRE_EMPHASIS_LANE);
-			link_training_settings.hw_lane_settings[lane].POST_CURSOR2 =
-				(enum dc_post_cursor2)
-				((dpcd_post_cursor_2_adjustment >> (lane * 2)) & 0x03);
-		} else if (link_dp_get_encoding_format(&link->cur_link_settings) ==
-				DP_128b_132b_ENCODING) {
-			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.level =
-					dpcd_lane_adjust.tx_ffe.PRESET_VALUE;
-			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.no_preshoot = no_preshoot;
-			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.no_deemphasis = no_deemphasis;
-		}
-	}
-
-	dp_hw_to_dpcd_lane_settings(&link_training_settings,
-			link_training_settings.hw_lane_settings,
-			link_training_settings.dpcd_lane_settings);
-	/*Usage: Measure DP physical lane signal
-	 * by DP SI test equipment automatically.
-	 * PHY test pattern request is generated by equipment via HPD interrupt.
-	 * HPD needs to be active all the time. HPD should be active
-	 * all the time. Do not touch it.
-	 * forward request to DS
-	 */
-	dc_link_dp_set_test_pattern(
-		link,
-		test_pattern,
-		DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED,
-		&link_training_settings,
-		test_pattern_buffer,
-		test_pattern_size);
-}
-
-static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
-{
-	union audio_test_mode            dpcd_test_mode = {0};
-	struct audio_test_pattern_type   dpcd_pattern_type = {0};
-	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
-	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
-
-	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
-	struct pipe_ctx *pipe_ctx = &pipes[0];
-	unsigned int channel_count;
-	unsigned int channel = 0;
-	unsigned int modes = 0;
-	unsigned int sampling_rate_in_hz = 0;
-
-	// get audio test mode and test pattern parameters
-	core_link_read_dpcd(
-		link,
-		DP_TEST_AUDIO_MODE,
-		&dpcd_test_mode.raw,
-		sizeof(dpcd_test_mode));
-
-	core_link_read_dpcd(
-		link,
-		DP_TEST_AUDIO_PATTERN_TYPE,
-		&dpcd_pattern_type.value,
-		sizeof(dpcd_pattern_type));
-
-	channel_count = min(dpcd_test_mode.bits.channel_count + 1, AUDIO_CHANNELS_COUNT);
-
-	// read pattern periods for requested channels when sawTooth pattern is requested
-	if (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH ||
-			dpcd_pattern_type.value == AUDIO_TEST_PATTERN_OPERATOR_DEFINED) {
-
-		test_pattern = (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH) ?
-				DP_TEST_PATTERN_AUDIO_SAWTOOTH : DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
-		// read period for each channel
-		for (channel = 0; channel < channel_count; channel++) {
-			core_link_read_dpcd(
-							link,
-							DP_TEST_AUDIO_PERIOD_CH1 + channel,
-							&dpcd_pattern_period[channel].raw,
-							sizeof(dpcd_pattern_period[channel]));
-		}
-	}
-
-	// translate sampling rate
-	switch (dpcd_test_mode.bits.sampling_rate) {
-	case AUDIO_SAMPLING_RATE_32KHZ:
-		sampling_rate_in_hz = 32000;
-		break;
-	case AUDIO_SAMPLING_RATE_44_1KHZ:
-		sampling_rate_in_hz = 44100;
-		break;
-	case AUDIO_SAMPLING_RATE_48KHZ:
-		sampling_rate_in_hz = 48000;
-		break;
-	case AUDIO_SAMPLING_RATE_88_2KHZ:
-		sampling_rate_in_hz = 88200;
-		break;
-	case AUDIO_SAMPLING_RATE_96KHZ:
-		sampling_rate_in_hz = 96000;
-		break;
-	case AUDIO_SAMPLING_RATE_176_4KHZ:
-		sampling_rate_in_hz = 176400;
-		break;
-	case AUDIO_SAMPLING_RATE_192KHZ:
-		sampling_rate_in_hz = 192000;
-		break;
-	default:
-		sampling_rate_in_hz = 0;
-		break;
-	}
-
-	link->audio_test_data.flags.test_requested = 1;
-	link->audio_test_data.flags.disable_video = disable_video;
-	link->audio_test_data.sampling_rate = sampling_rate_in_hz;
-	link->audio_test_data.channel_count = channel_count;
-	link->audio_test_data.pattern_type = test_pattern;
-
-	if (test_pattern == DP_TEST_PATTERN_AUDIO_SAWTOOTH) {
-		for (modes = 0; modes < pipe_ctx->stream->audio_info.mode_count; modes++) {
-			link->audio_test_data.pattern_period[modes] = dpcd_pattern_period[modes].bits.pattern_period;
-		}
-	}
-}
-
-void dc_link_dp_handle_automated_test(struct dc_link *link)
-{
-	union test_request test_request;
-	union test_response test_response;
-
-	memset(&test_request, 0, sizeof(test_request));
-	memset(&test_response, 0, sizeof(test_response));
-
-	core_link_read_dpcd(
-		link,
-		DP_TEST_REQUEST,
-		&test_request.raw,
-		sizeof(union test_request));
-	if (test_request.bits.LINK_TRAINING) {
-		/* ACK first to let DP RX test box monitor LT sequence */
-		test_response.bits.ACK = 1;
-		core_link_write_dpcd(
-			link,
-			DP_TEST_RESPONSE,
-			&test_response.raw,
-			sizeof(test_response));
-		dp_test_send_link_training(link);
-		/* no acknowledge request is needed again */
-		test_response.bits.ACK = 0;
-	}
-	if (test_request.bits.LINK_TEST_PATTRN) {
-		union test_misc dpcd_test_params;
-		union link_test_pattern dpcd_test_pattern;
-
-		memset(&dpcd_test_pattern, 0, sizeof(dpcd_test_pattern));
-		memset(&dpcd_test_params, 0, sizeof(dpcd_test_params));
-
-		/* get link test pattern and pattern parameters */
-		core_link_read_dpcd(
-				link,
-				DP_TEST_PATTERN,
-				&dpcd_test_pattern.raw,
-				sizeof(dpcd_test_pattern));
-		core_link_read_dpcd(
-				link,
-				DP_TEST_MISC0,
-				&dpcd_test_params.raw,
-				sizeof(dpcd_test_params));
-		test_response.bits.ACK = dm_helpers_dp_handle_test_pattern_request(link->ctx, link,
-				dpcd_test_pattern, dpcd_test_params) ? 1 : 0;
-	}
-
-	if (test_request.bits.AUDIO_TEST_PATTERN) {
-		dp_test_get_audio_test_data(link, test_request.bits.TEST_AUDIO_DISABLED_VIDEO);
-		test_response.bits.ACK = 1;
-	}
-
-	if (test_request.bits.PHY_TEST_PATTERN) {
-		dp_test_send_phy_test_pattern(link);
-		test_response.bits.ACK = 1;
-	}
-
-	/* send request acknowledgment */
-	if (test_response.bits.ACK)
-		core_link_write_dpcd(
-			link,
-			DP_TEST_RESPONSE,
-			&test_response.raw,
-			sizeof(test_response));
-}
-
-static bool is_dp_phy_pattern(enum dp_test_pattern test_pattern)
-{
-	if ((DP_TEST_PATTERN_PHY_PATTERN_BEGIN <= test_pattern &&
-			test_pattern <= DP_TEST_PATTERN_PHY_PATTERN_END) ||
-			test_pattern == DP_TEST_PATTERN_VIDEO_MODE)
-		return true;
-	else
-		return false;
-}
-
-static void set_crtc_test_pattern(struct dc_link *link,
-				struct pipe_ctx *pipe_ctx,
-				enum dp_test_pattern test_pattern,
-				enum dp_test_pattern_color_space test_pattern_color_space)
-{
-	enum controller_dp_test_pattern controller_test_pattern;
-	enum dc_color_depth color_depth = pipe_ctx->
-		stream->timing.display_color_depth;
-	struct bit_depth_reduction_params params;
-	struct output_pixel_processor *opp = pipe_ctx->stream_res.opp;
-	int width = pipe_ctx->stream->timing.h_addressable +
-		pipe_ctx->stream->timing.h_border_left +
-		pipe_ctx->stream->timing.h_border_right;
-	int height = pipe_ctx->stream->timing.v_addressable +
-		pipe_ctx->stream->timing.v_border_bottom +
-		pipe_ctx->stream->timing.v_border_top;
-
-	memset(&params, 0, sizeof(params));
-
-	switch (test_pattern) {
-	case DP_TEST_PATTERN_COLOR_SQUARES:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_COLORSQUARES;
-	break;
-	case DP_TEST_PATTERN_COLOR_SQUARES_CEA:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA;
-	break;
-	case DP_TEST_PATTERN_VERTICAL_BARS:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_VERTICALBARS;
-	break;
-	case DP_TEST_PATTERN_HORIZONTAL_BARS:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_HORIZONTALBARS;
-	break;
-	case DP_TEST_PATTERN_COLOR_RAMP:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_COLORRAMP;
-	break;
-	default:
-		controller_test_pattern =
-				CONTROLLER_DP_TEST_PATTERN_VIDEOMODE;
-	break;
-	}
-
-	switch (test_pattern) {
-	case DP_TEST_PATTERN_COLOR_SQUARES:
-	case DP_TEST_PATTERN_COLOR_SQUARES_CEA:
-	case DP_TEST_PATTERN_VERTICAL_BARS:
-	case DP_TEST_PATTERN_HORIZONTAL_BARS:
-	case DP_TEST_PATTERN_COLOR_RAMP:
-	{
-		/* disable bit depth reduction */
-		pipe_ctx->stream->bit_depth_params = params;
-		opp->funcs->opp_program_bit_depth_reduction(opp, &params);
-		if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
-			pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
-				controller_test_pattern, color_depth);
-		else if (link->dc->hwss.set_disp_pattern_generator) {
-			struct pipe_ctx *odm_pipe;
-			enum controller_dp_color_space controller_color_space;
-			int opp_cnt = 1;
-			int offset = 0;
-			int dpg_width = width;
-
-			switch (test_pattern_color_space) {
-			case DP_TEST_PATTERN_COLOR_SPACE_RGB:
-				controller_color_space = CONTROLLER_DP_COLOR_SPACE_RGB;
-				break;
-			case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601:
-				controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR601;
-				break;
-			case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709:
-				controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR709;
-				break;
-			case DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED:
-			default:
-				controller_color_space = CONTROLLER_DP_COLOR_SPACE_UDEFINED;
-				DC_LOG_ERROR("%s: Color space must be defined for test pattern", __func__);
-				ASSERT(0);
-				break;
-			}
-
-			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
-				opp_cnt++;
-			dpg_width = width / opp_cnt;
-			offset = dpg_width;
-
-			link->dc->hwss.set_disp_pattern_generator(link->dc,
-					pipe_ctx,
-					controller_test_pattern,
-					controller_color_space,
-					color_depth,
-					NULL,
-					dpg_width,
-					height,
-					0);
-
-			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
-				struct output_pixel_processor *odm_opp = odm_pipe->stream_res.opp;
-
-				odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, &params);
-				link->dc->hwss.set_disp_pattern_generator(link->dc,
-						odm_pipe,
-						controller_test_pattern,
-						controller_color_space,
-						color_depth,
-						NULL,
-						dpg_width,
-						height,
-						offset);
-				offset += offset;
-			}
-		}
-	}
-	break;
-	case DP_TEST_PATTERN_VIDEO_MODE:
-	{
-		/* restore bitdepth reduction */
-		resource_build_bit_depth_reduction_params(pipe_ctx->stream, &params);
-		pipe_ctx->stream->bit_depth_params = params;
-		opp->funcs->opp_program_bit_depth_reduction(opp, &params);
-		if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
-			pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
-				CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
-				color_depth);
-		else if (link->dc->hwss.set_disp_pattern_generator) {
-			struct pipe_ctx *odm_pipe;
-			int opp_cnt = 1;
-			int dpg_width;
-
-			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
-				opp_cnt++;
-
-			dpg_width = width / opp_cnt;
-			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
-				struct output_pixel_processor *odm_opp = odm_pipe->stream_res.opp;
-
-				odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, &params);
-				link->dc->hwss.set_disp_pattern_generator(link->dc,
-						odm_pipe,
-						CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
-						CONTROLLER_DP_COLOR_SPACE_UDEFINED,
-						color_depth,
-						NULL,
-						dpg_width,
-						height,
-						0);
-			}
-			link->dc->hwss.set_disp_pattern_generator(link->dc,
-					pipe_ctx,
-					CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
-					CONTROLLER_DP_COLOR_SPACE_UDEFINED,
-					color_depth,
-					NULL,
-					dpg_width,
-					height,
-					0);
-		}
-	}
-	break;
-
-	default:
-	break;
-	}
-}
-
-bool dc_link_dp_set_test_pattern(
-	struct dc_link *link,
-	enum dp_test_pattern test_pattern,
-	enum dp_test_pattern_color_space test_pattern_color_space,
-	const struct link_training_settings *p_link_settings,
-	const unsigned char *p_custom_pattern,
-	unsigned int cust_pattern_size)
-{
-	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
-	struct pipe_ctx *pipe_ctx = NULL;
-	unsigned int lane;
-	unsigned int i;
-	unsigned char link_qual_pattern[LANE_COUNT_DP_MAX] = {0};
-	union dpcd_training_pattern training_pattern;
-	enum dpcd_phy_test_patterns pattern;
-
-	memset(&training_pattern, 0, sizeof(training_pattern));
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		if (pipes[i].stream == NULL)
-			continue;
-
-		if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) {
-			pipe_ctx = &pipes[i];
-			break;
-		}
-	}
-
-	if (pipe_ctx == NULL)
-		return false;
-
-	/* Reset CRTC Test Pattern if it is currently running and request is VideoMode */
-	if (link->test_pattern_enabled && test_pattern ==
-			DP_TEST_PATTERN_VIDEO_MODE) {
-		/* Set CRTC Test Pattern */
-		set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space);
-		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
-				(uint8_t *)p_custom_pattern,
-				(uint32_t)cust_pattern_size);
-
-		/* Unblank Stream */
-		link->dc->hwss.unblank_stream(
-			pipe_ctx,
-			&link->verified_link_cap);
-		/* TODO:m_pHwss->MuteAudioEndpoint
-		 * (pPathMode->pDisplayPath, false);
-		 */
-
-		/* Reset Test Pattern state */
-		link->test_pattern_enabled = false;
-
-		return true;
-	}
-
-	/* Check for PHY Test Patterns */
-	if (is_dp_phy_pattern(test_pattern)) {
-		/* Set DPCD Lane Settings before running test pattern */
-		if (p_link_settings != NULL) {
-			if ((link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&
-					p_link_settings->lttpr_mode == LTTPR_MODE_TRANSPARENT) {
-				dp_fixed_vs_pe_set_retimer_lane_settings(
-						link,
-						p_link_settings->dpcd_lane_settings,
-						p_link_settings->link_settings.lane_count);
-			} else {
-				dp_set_hw_lane_settings(link, &pipe_ctx->link_res, p_link_settings, DPRX);
-			}
-			dpcd_set_lane_settings(link, p_link_settings, DPRX);
-		}
-
-		/* Blank stream if running test pattern */
-		if (test_pattern != DP_TEST_PATTERN_VIDEO_MODE) {
-			/*TODO:
-			 * m_pHwss->
-			 * MuteAudioEndpoint(pPathMode->pDisplayPath, true);
-			 */
-			/* Blank stream */
-			link->dc->hwss.blank_stream(pipe_ctx);
-		}
-
-		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
-				(uint8_t *)p_custom_pattern,
-				(uint32_t)cust_pattern_size);
-
-		if (test_pattern != DP_TEST_PATTERN_VIDEO_MODE) {
-			/* Set Test Pattern state */
-			link->test_pattern_enabled = true;
-			if (p_link_settings != NULL)
-				dpcd_set_link_settings(link,
-						p_link_settings);
-		}
-
-		switch (test_pattern) {
-		case DP_TEST_PATTERN_VIDEO_MODE:
-			pattern = PHY_TEST_PATTERN_NONE;
-			break;
-		case DP_TEST_PATTERN_D102:
-			pattern = PHY_TEST_PATTERN_D10_2;
-			break;
-		case DP_TEST_PATTERN_SYMBOL_ERROR:
-			pattern = PHY_TEST_PATTERN_SYMBOL_ERROR;
-			break;
-		case DP_TEST_PATTERN_PRBS7:
-			pattern = PHY_TEST_PATTERN_PRBS7;
-			break;
-		case DP_TEST_PATTERN_80BIT_CUSTOM:
-			pattern = PHY_TEST_PATTERN_80BIT_CUSTOM;
-			break;
-		case DP_TEST_PATTERN_CP2520_1:
-			pattern = PHY_TEST_PATTERN_CP2520_1;
-			break;
-		case DP_TEST_PATTERN_CP2520_2:
-			pattern = PHY_TEST_PATTERN_CP2520_2;
-			break;
-		case DP_TEST_PATTERN_CP2520_3:
-			pattern = PHY_TEST_PATTERN_CP2520_3;
-			break;
-		case DP_TEST_PATTERN_128b_132b_TPS1:
-			pattern = PHY_TEST_PATTERN_128b_132b_TPS1;
-			break;
-		case DP_TEST_PATTERN_128b_132b_TPS2:
-			pattern = PHY_TEST_PATTERN_128b_132b_TPS2;
-			break;
-		case DP_TEST_PATTERN_PRBS9:
-			pattern = PHY_TEST_PATTERN_PRBS9;
-			break;
-		case DP_TEST_PATTERN_PRBS11:
-			pattern = PHY_TEST_PATTERN_PRBS11;
-			break;
-		case DP_TEST_PATTERN_PRBS15:
-			pattern = PHY_TEST_PATTERN_PRBS15;
-			break;
-		case DP_TEST_PATTERN_PRBS23:
-			pattern = PHY_TEST_PATTERN_PRBS23;
-			break;
-		case DP_TEST_PATTERN_PRBS31:
-			pattern = PHY_TEST_PATTERN_PRBS31;
-			break;
-		case DP_TEST_PATTERN_264BIT_CUSTOM:
-			pattern = PHY_TEST_PATTERN_264BIT_CUSTOM;
-			break;
-		case DP_TEST_PATTERN_SQUARE:
-			pattern = PHY_TEST_PATTERN_SQUARE;
-			break;
-		case DP_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED:
-			pattern = PHY_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED;
-			break;
-		case DP_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED:
-			pattern = PHY_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED;
-			break;
-		case DP_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED:
-			pattern = PHY_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED;
-			break;
-		default:
-			return false;
-		}
-
-		if (test_pattern == DP_TEST_PATTERN_VIDEO_MODE
-		/*TODO:&& !pPathMode->pDisplayPath->IsTargetPoweredOn()*/)
-			return false;
-
-		if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_12) {
-			if (is_dp_phy_sqaure_pattern(test_pattern))
-				core_link_write_dpcd(link,
-						DP_LINK_SQUARE_PATTERN,
-						p_custom_pattern,
-						1);
-
-			/* tell receiver that we are sending qualification
-			 * pattern DP 1.2 or later - DP receiver's link quality
-			 * pattern is set using DPCD LINK_QUAL_LANEx_SET
-			 * register (0x10B~0x10E)\
-			 */
-			for (lane = 0; lane < LANE_COUNT_DP_MAX; lane++)
-				link_qual_pattern[lane] =
-						(unsigned char)(pattern);
-
-			core_link_write_dpcd(link,
-					DP_LINK_QUAL_LANE0_SET,
-					link_qual_pattern,
-					sizeof(link_qual_pattern));
-		} else if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_10 ||
-			   link->dpcd_caps.dpcd_rev.raw == 0) {
-			/* tell receiver that we are sending qualification
-			 * pattern DP 1.1a or earlier - DP receiver's link
-			 * quality pattern is set using
-			 * DPCD TRAINING_PATTERN_SET -> LINK_QUAL_PATTERN_SET
-			 * register (0x102). We will use v_1.3 when we are
-			 * setting test pattern for DP 1.1.
-			 */
-			core_link_read_dpcd(link, DP_TRAINING_PATTERN_SET,
-					    &training_pattern.raw,
-					    sizeof(training_pattern));
-			training_pattern.v1_3.LINK_QUAL_PATTERN_SET = pattern;
-			core_link_write_dpcd(link, DP_TRAINING_PATTERN_SET,
-					     &training_pattern.raw,
-					     sizeof(training_pattern));
-		}
-	} else {
-		enum dc_color_space color_space = COLOR_SPACE_UNKNOWN;
-
-		switch (test_pattern_color_space) {
-		case DP_TEST_PATTERN_COLOR_SPACE_RGB:
-			color_space = COLOR_SPACE_SRGB;
-			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
-				color_space = COLOR_SPACE_SRGB_LIMITED;
-			break;
-
-		case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601:
-			color_space = COLOR_SPACE_YCBCR601;
-			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
-				color_space = COLOR_SPACE_YCBCR601_LIMITED;
-			break;
-		case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709:
-			color_space = COLOR_SPACE_YCBCR709;
-			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
-				color_space = COLOR_SPACE_YCBCR709_LIMITED;
-			break;
-		default:
-			break;
-		}
-
-		if (pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_enable) {
-			if (pipe_ctx->stream && should_use_dmub_lock(pipe_ctx->stream->link)) {
-				union dmub_hw_lock_flags hw_locks = { 0 };
-				struct dmub_hw_lock_inst_flags inst_flags = { 0 };
-
-				hw_locks.bits.lock_dig = 1;
-				inst_flags.dig_inst = pipe_ctx->stream_res.tg->inst;
-
-				dmub_hw_lock_mgr_cmd(link->ctx->dmub_srv,
-							true,
-							&hw_locks,
-							&inst_flags);
-			} else
-				pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_enable(
-						pipe_ctx->stream_res.tg);
-		}
-
-		pipe_ctx->stream_res.tg->funcs->lock(pipe_ctx->stream_res.tg);
-		/* update MSA to requested color space */
-		pipe_ctx->stream_res.stream_enc->funcs->dp_set_stream_attribute(pipe_ctx->stream_res.stream_enc,
-				&pipe_ctx->stream->timing,
-				color_space,
-				pipe_ctx->stream->use_vsc_sdp_for_colorimetry,
-				link->dpcd_caps.dprx_feature.bits.SST_SPLIT_SDP_CAP);
-
-		if (pipe_ctx->stream->use_vsc_sdp_for_colorimetry) {
-			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
-				pipe_ctx->stream->vsc_infopacket.sb[17] |= (1 << 7); // sb17 bit 7 Dynamic Range: 0 = VESA range, 1 = CTA range
-			else
-				pipe_ctx->stream->vsc_infopacket.sb[17] &= ~(1 << 7);
-			resource_build_info_frame(pipe_ctx);
-			link->dc->hwss.update_info_frame(pipe_ctx);
-		}
-
-		/* CRTC Patterns */
-		set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space);
-		pipe_ctx->stream_res.tg->funcs->unlock(pipe_ctx->stream_res.tg);
-		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
-				CRTC_STATE_VACTIVE);
-		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
-				CRTC_STATE_VBLANK);
-		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
-				CRTC_STATE_VACTIVE);
-
-		if (pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_disable) {
-			if (pipe_ctx->stream && should_use_dmub_lock(pipe_ctx->stream->link)) {
-				union dmub_hw_lock_flags hw_locks = { 0 };
-				struct dmub_hw_lock_inst_flags inst_flags = { 0 };
-
-				hw_locks.bits.lock_dig = 1;
-				inst_flags.dig_inst = pipe_ctx->stream_res.tg->inst;
-
-				dmub_hw_lock_mgr_cmd(link->ctx->dmub_srv,
-							false,
-							&hw_locks,
-							&inst_flags);
-			} else
-				pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_disable(
-						pipe_ctx->stream_res.tg);
-		}
-
-		/* Set Test Pattern state */
-		link->test_pattern_enabled = true;
-	}
-
-	return true;
-}
-
 void dp_enable_mst_on_sink(struct dc_link *link, bool enable)
 {
 	unsigned char mstmCntl;
@@ -1281,43 +403,6 @@ void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode)
 					&dp_test_mode, sizeof(dp_test_mode));
 }
 
-void dp_retrain_link_dp_test(struct dc_link *link,
-			struct dc_link_settings *link_setting,
-			bool skip_video_pattern)
-{
-	struct pipe_ctx *pipe;
-	unsigned int i;
-
-	udelay(100);
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe = &link->dc->current_state->res_ctx.pipe_ctx[i];
-		if (pipe->stream != NULL &&
-				pipe->stream->link == link &&
-				!pipe->stream->dpms_off &&
-				!pipe->top_pipe && !pipe->prev_odm_pipe) {
-			core_link_disable_stream(pipe);
-			pipe->link_config.dp_link_settings = *link_setting;
-			update_dp_encoder_resources_for_test_harness(
-					link->dc,
-					pipe->stream->ctx->dc->current_state,
-					pipe);
-		}
-	}
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe = &link->dc->current_state->res_ctx.pipe_ctx[i];
-		if (pipe->stream != NULL &&
-				pipe->stream->link == link &&
-				!pipe->stream->dpms_off &&
-				!pipe->top_pipe && !pipe->prev_odm_pipe) {
-			core_link_enable_stream(
-					pipe->stream->ctx->dc->current_state,
-					pipe);
-		}
-	}
-}
-
 #undef DC_LOGGER
 #define DC_LOGGER \
 	dsc->ctx->logger
diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
index 10bef15d980e..2440d2103e18 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
@@ -74,8 +74,6 @@ struct fixed31_32 calculate_sst_avg_time_slots_per_mtp(
 		const struct dc_link *link);
 void setup_dp_hpo_stream(struct pipe_ctx *pipe_ctx, bool enable);
 void dp_source_sequence_trace(struct dc_link *link, uint8_t dp_test_mode);
-void dp_retrain_link_dp_test(struct dc_link *link,
-		struct dc_link_settings *link_setting,
-		bool skip_video_pattern);
+
 
 #endif /* __DC_LINK_DP_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/link/Makefile b/drivers/gpu/drm/amd/display/dc/link/Makefile
index 3ecb72be4dac..0f642cbac3d5 100644
--- a/drivers/gpu/drm/amd/display/dc/link/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/link/Makefile
@@ -26,7 +26,7 @@
 ###############################################################################
 # accessories
 ###############################################################################
-LINK_ACCESSORIES = link_dp_trace.o
+LINK_ACCESSORIES = link_dp_trace.o link_dp_cts.o
 
 AMD_DAL_LINK_ACCESSORIES = $(addprefix $(AMDDALPATH)/dc/link/accessories/, \
 $(LINK_ACCESSORIES))
diff --git a/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
new file mode 100644
index 000000000000..7fb2c0b4c4bb
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
@@ -0,0 +1,1055 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "link_dp_cts.h"
+#include "link/protocols/link_dpcd.h"
+#include "link/protocols/link_dp_training.h"
+#include "link/protocols/link_dp_phy.h"
+#include "link/protocols/link_dp_training_fixed_vs_pe_retimer.h"
+#include "resource.h"
+#include "dm_helpers.h"
+#include "dc_dmub_srv.h"
+#include "dce/dmub_hw_lock_mgr.h"
+
+#define DC_LOGGER \
+	link->ctx->logger
+
+static enum dc_link_rate get_link_rate_from_test_link_rate(uint8_t test_rate)
+{
+	switch (test_rate) {
+	case DP_TEST_LINK_RATE_RBR:
+		return LINK_RATE_LOW;
+	case DP_TEST_LINK_RATE_HBR:
+		return LINK_RATE_HIGH;
+	case DP_TEST_LINK_RATE_HBR2:
+		return LINK_RATE_HIGH2;
+	case DP_TEST_LINK_RATE_HBR3:
+		return LINK_RATE_HIGH3;
+	case DP_TEST_LINK_RATE_UHBR10:
+		return LINK_RATE_UHBR10;
+	case DP_TEST_LINK_RATE_UHBR20:
+		return LINK_RATE_UHBR20;
+	case DP_TEST_LINK_RATE_UHBR13_5:
+		return LINK_RATE_UHBR13_5;
+	default:
+		return LINK_RATE_UNKNOWN;
+	}
+}
+
+static bool is_dp_phy_sqaure_pattern(enum dp_test_pattern test_pattern)
+{
+	return (DP_TEST_PATTERN_SQUARE_BEGIN <= test_pattern &&
+			test_pattern <= DP_TEST_PATTERN_SQUARE_END);
+}
+
+static bool is_dp_phy_pattern(enum dp_test_pattern test_pattern)
+{
+	if ((DP_TEST_PATTERN_PHY_PATTERN_BEGIN <= test_pattern &&
+			test_pattern <= DP_TEST_PATTERN_PHY_PATTERN_END) ||
+			test_pattern == DP_TEST_PATTERN_VIDEO_MODE)
+		return true;
+	else
+		return false;
+}
+
+void dp_retrain_link_dp_test(struct dc_link *link,
+			struct dc_link_settings *link_setting,
+			bool skip_video_pattern)
+{
+	struct pipe_ctx *pipe;
+	unsigned int i;
+
+	udelay(100);
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe = &link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe->stream != NULL &&
+				pipe->stream->link == link &&
+				!pipe->stream->dpms_off &&
+				!pipe->top_pipe && !pipe->prev_odm_pipe) {
+			core_link_disable_stream(pipe);
+			pipe->link_config.dp_link_settings = *link_setting;
+			update_dp_encoder_resources_for_test_harness(
+					link->dc,
+					pipe->stream->ctx->dc->current_state,
+					pipe);
+		}
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe = &link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe->stream != NULL &&
+				pipe->stream->link == link &&
+				!pipe->stream->dpms_off &&
+				!pipe->top_pipe && !pipe->prev_odm_pipe) {
+			core_link_enable_stream(
+					pipe->stream->ctx->dc->current_state,
+					pipe);
+		}
+	}
+}
+
+static void dp_test_send_link_training(struct dc_link *link)
+{
+	struct dc_link_settings link_settings = {0};
+	uint8_t test_rate = 0;
+
+	core_link_read_dpcd(
+			link,
+			DP_TEST_LANE_COUNT,
+			(unsigned char *)(&link_settings.lane_count),
+			1);
+	core_link_read_dpcd(
+			link,
+			DP_TEST_LINK_RATE,
+			&test_rate,
+			1);
+	link_settings.link_rate = get_link_rate_from_test_link_rate(test_rate);
+
+	/* Set preferred link settings */
+	link->verified_link_cap.lane_count = link_settings.lane_count;
+	link->verified_link_cap.link_rate = link_settings.link_rate;
+
+	dp_retrain_link_dp_test(link, &link_settings, false);
+}
+
+static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
+{
+	union audio_test_mode            dpcd_test_mode = {0};
+	struct audio_test_pattern_type   dpcd_pattern_type = {0};
+	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
+	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
+
+	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
+	struct pipe_ctx *pipe_ctx = &pipes[0];
+	unsigned int channel_count;
+	unsigned int channel = 0;
+	unsigned int modes = 0;
+	unsigned int sampling_rate_in_hz = 0;
+
+	// get audio test mode and test pattern parameters
+	core_link_read_dpcd(
+		link,
+		DP_TEST_AUDIO_MODE,
+		&dpcd_test_mode.raw,
+		sizeof(dpcd_test_mode));
+
+	core_link_read_dpcd(
+		link,
+		DP_TEST_AUDIO_PATTERN_TYPE,
+		&dpcd_pattern_type.value,
+		sizeof(dpcd_pattern_type));
+
+	channel_count = min(dpcd_test_mode.bits.channel_count + 1, AUDIO_CHANNELS_COUNT);
+
+	// read pattern periods for requested channels when sawTooth pattern is requested
+	if (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH ||
+			dpcd_pattern_type.value == AUDIO_TEST_PATTERN_OPERATOR_DEFINED) {
+
+		test_pattern = (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH) ?
+				DP_TEST_PATTERN_AUDIO_SAWTOOTH : DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
+		// read period for each channel
+		for (channel = 0; channel < channel_count; channel++) {
+			core_link_read_dpcd(
+							link,
+							DP_TEST_AUDIO_PERIOD_CH1 + channel,
+							&dpcd_pattern_period[channel].raw,
+							sizeof(dpcd_pattern_period[channel]));
+		}
+	}
+
+	// translate sampling rate
+	switch (dpcd_test_mode.bits.sampling_rate) {
+	case AUDIO_SAMPLING_RATE_32KHZ:
+		sampling_rate_in_hz = 32000;
+		break;
+	case AUDIO_SAMPLING_RATE_44_1KHZ:
+		sampling_rate_in_hz = 44100;
+		break;
+	case AUDIO_SAMPLING_RATE_48KHZ:
+		sampling_rate_in_hz = 48000;
+		break;
+	case AUDIO_SAMPLING_RATE_88_2KHZ:
+		sampling_rate_in_hz = 88200;
+		break;
+	case AUDIO_SAMPLING_RATE_96KHZ:
+		sampling_rate_in_hz = 96000;
+		break;
+	case AUDIO_SAMPLING_RATE_176_4KHZ:
+		sampling_rate_in_hz = 176400;
+		break;
+	case AUDIO_SAMPLING_RATE_192KHZ:
+		sampling_rate_in_hz = 192000;
+		break;
+	default:
+		sampling_rate_in_hz = 0;
+		break;
+	}
+
+	link->audio_test_data.flags.test_requested = 1;
+	link->audio_test_data.flags.disable_video = disable_video;
+	link->audio_test_data.sampling_rate = sampling_rate_in_hz;
+	link->audio_test_data.channel_count = channel_count;
+	link->audio_test_data.pattern_type = test_pattern;
+
+	if (test_pattern == DP_TEST_PATTERN_AUDIO_SAWTOOTH) {
+		for (modes = 0; modes < pipe_ctx->stream->audio_info.mode_count; modes++) {
+			link->audio_test_data.pattern_period[modes] = dpcd_pattern_period[modes].bits.pattern_period;
+		}
+	}
+}
+
+/* TODO Raven hbr2 compliance eye output is unstable
+ * (toggling on and off) with debugger break
+ * This caueses intermittent PHY automation failure
+ * Need to look into the root cause */
+static void dp_test_send_phy_test_pattern(struct dc_link *link)
+{
+	union phy_test_pattern dpcd_test_pattern;
+	union lane_adjust dpcd_lane_adjustment[2];
+	unsigned char dpcd_post_cursor_2_adjustment = 0;
+	unsigned char test_pattern_buffer[
+			(DP_TEST_264BIT_CUSTOM_PATTERN_263_256 -
+			DP_TEST_264BIT_CUSTOM_PATTERN_7_0)+1] = {0};
+	unsigned int test_pattern_size = 0;
+	enum dp_test_pattern test_pattern;
+	union lane_adjust dpcd_lane_adjust;
+	unsigned int lane;
+	struct link_training_settings link_training_settings;
+	unsigned char no_preshoot = 0;
+	unsigned char no_deemphasis = 0;
+
+	dpcd_test_pattern.raw = 0;
+	memset(dpcd_lane_adjustment, 0, sizeof(dpcd_lane_adjustment));
+	memset(&link_training_settings, 0, sizeof(link_training_settings));
+
+	/* get phy test pattern and pattern parameters from DP receiver */
+	core_link_read_dpcd(
+			link,
+			DP_PHY_TEST_PATTERN,
+			&dpcd_test_pattern.raw,
+			sizeof(dpcd_test_pattern));
+	core_link_read_dpcd(
+			link,
+			DP_ADJUST_REQUEST_LANE0_1,
+			&dpcd_lane_adjustment[0].raw,
+			sizeof(dpcd_lane_adjustment));
+
+	/* prepare link training settings */
+	link_training_settings.link_settings = link->cur_link_settings;
+
+	link_training_settings.lttpr_mode = dc_link_decide_lttpr_mode(link, &link->cur_link_settings);
+
+	if ((link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&
+			link_training_settings.lttpr_mode == LTTPR_MODE_TRANSPARENT)
+		dp_fixed_vs_pe_read_lane_adjust(
+				link,
+				link_training_settings.dpcd_lane_settings);
+
+	/*get post cursor 2 parameters
+	 * For DP 1.1a or eariler, this DPCD register's value is 0
+	 * For DP 1.2 or later:
+	 * Bits 1:0 = POST_CURSOR2_LANE0; Bits 3:2 = POST_CURSOR2_LANE1
+	 * Bits 5:4 = POST_CURSOR2_LANE2; Bits 7:6 = POST_CURSOR2_LANE3
+	 */
+	core_link_read_dpcd(
+			link,
+			DP_ADJUST_REQUEST_POST_CURSOR2,
+			&dpcd_post_cursor_2_adjustment,
+			sizeof(dpcd_post_cursor_2_adjustment));
+
+	/* translate request */
+	switch (dpcd_test_pattern.bits.PATTERN) {
+	case PHY_TEST_PATTERN_D10_2:
+		test_pattern = DP_TEST_PATTERN_D102;
+		break;
+	case PHY_TEST_PATTERN_SYMBOL_ERROR:
+		test_pattern = DP_TEST_PATTERN_SYMBOL_ERROR;
+		break;
+	case PHY_TEST_PATTERN_PRBS7:
+		test_pattern = DP_TEST_PATTERN_PRBS7;
+		break;
+	case PHY_TEST_PATTERN_80BIT_CUSTOM:
+		test_pattern = DP_TEST_PATTERN_80BIT_CUSTOM;
+		break;
+	case PHY_TEST_PATTERN_CP2520_1:
+		/* CP2520 pattern is unstable, temporarily use TPS4 instead */
+		test_pattern = (link->dc->caps.force_dp_tps4_for_cp2520 == 1) ?
+				DP_TEST_PATTERN_TRAINING_PATTERN4 :
+				DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE;
+		break;
+	case PHY_TEST_PATTERN_CP2520_2:
+		/* CP2520 pattern is unstable, temporarily use TPS4 instead */
+		test_pattern = (link->dc->caps.force_dp_tps4_for_cp2520 == 1) ?
+				DP_TEST_PATTERN_TRAINING_PATTERN4 :
+				DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE;
+		break;
+	case PHY_TEST_PATTERN_CP2520_3:
+		test_pattern = DP_TEST_PATTERN_TRAINING_PATTERN4;
+		break;
+	case PHY_TEST_PATTERN_128b_132b_TPS1:
+		test_pattern = DP_TEST_PATTERN_128b_132b_TPS1;
+		break;
+	case PHY_TEST_PATTERN_128b_132b_TPS2:
+		test_pattern = DP_TEST_PATTERN_128b_132b_TPS2;
+		break;
+	case PHY_TEST_PATTERN_PRBS9:
+		test_pattern = DP_TEST_PATTERN_PRBS9;
+		break;
+	case PHY_TEST_PATTERN_PRBS11:
+		test_pattern = DP_TEST_PATTERN_PRBS11;
+		break;
+	case PHY_TEST_PATTERN_PRBS15:
+		test_pattern = DP_TEST_PATTERN_PRBS15;
+		break;
+	case PHY_TEST_PATTERN_PRBS23:
+		test_pattern = DP_TEST_PATTERN_PRBS23;
+		break;
+	case PHY_TEST_PATTERN_PRBS31:
+		test_pattern = DP_TEST_PATTERN_PRBS31;
+		break;
+	case PHY_TEST_PATTERN_264BIT_CUSTOM:
+		test_pattern = DP_TEST_PATTERN_264BIT_CUSTOM;
+		break;
+	case PHY_TEST_PATTERN_SQUARE:
+		test_pattern = DP_TEST_PATTERN_SQUARE;
+		break;
+	case PHY_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED:
+		test_pattern = DP_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED;
+		no_preshoot = 1;
+		break;
+	case PHY_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED:
+		test_pattern = DP_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED;
+		no_deemphasis = 1;
+		break;
+	case PHY_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED:
+		test_pattern = DP_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED;
+		no_preshoot = 1;
+		no_deemphasis = 1;
+		break;
+	default:
+		test_pattern = DP_TEST_PATTERN_VIDEO_MODE;
+	break;
+	}
+
+	if (test_pattern == DP_TEST_PATTERN_80BIT_CUSTOM) {
+		test_pattern_size = (DP_TEST_80BIT_CUSTOM_PATTERN_79_72 -
+				DP_TEST_80BIT_CUSTOM_PATTERN_7_0) + 1;
+		core_link_read_dpcd(
+				link,
+				DP_TEST_80BIT_CUSTOM_PATTERN_7_0,
+				test_pattern_buffer,
+				test_pattern_size);
+	}
+
+	if (is_dp_phy_sqaure_pattern(test_pattern)) {
+		test_pattern_size = 1; // Square pattern data is 1 byte (DP spec)
+		core_link_read_dpcd(
+				link,
+				DP_PHY_SQUARE_PATTERN,
+				test_pattern_buffer,
+				test_pattern_size);
+	}
+
+	if (test_pattern == DP_TEST_PATTERN_264BIT_CUSTOM) {
+		test_pattern_size = (DP_TEST_264BIT_CUSTOM_PATTERN_263_256-
+				DP_TEST_264BIT_CUSTOM_PATTERN_7_0) + 1;
+		core_link_read_dpcd(
+				link,
+				DP_TEST_264BIT_CUSTOM_PATTERN_7_0,
+				test_pattern_buffer,
+				test_pattern_size);
+	}
+
+	for (lane = 0; lane <
+		(unsigned int)(link->cur_link_settings.lane_count);
+		lane++) {
+		dpcd_lane_adjust.raw =
+			dp_get_nibble_at_index(&dpcd_lane_adjustment[0].raw, lane);
+		if (link_dp_get_encoding_format(&link->cur_link_settings) ==
+				DP_8b_10b_ENCODING) {
+			link_training_settings.hw_lane_settings[lane].VOLTAGE_SWING =
+				(enum dc_voltage_swing)
+				(dpcd_lane_adjust.bits.VOLTAGE_SWING_LANE);
+			link_training_settings.hw_lane_settings[lane].PRE_EMPHASIS =
+				(enum dc_pre_emphasis)
+				(dpcd_lane_adjust.bits.PRE_EMPHASIS_LANE);
+			link_training_settings.hw_lane_settings[lane].POST_CURSOR2 =
+				(enum dc_post_cursor2)
+				((dpcd_post_cursor_2_adjustment >> (lane * 2)) & 0x03);
+		} else if (link_dp_get_encoding_format(&link->cur_link_settings) ==
+				DP_128b_132b_ENCODING) {
+			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.level =
+					dpcd_lane_adjust.tx_ffe.PRESET_VALUE;
+			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.no_preshoot = no_preshoot;
+			link_training_settings.hw_lane_settings[lane].FFE_PRESET.settings.no_deemphasis = no_deemphasis;
+		}
+	}
+
+	dp_hw_to_dpcd_lane_settings(&link_training_settings,
+			link_training_settings.hw_lane_settings,
+			link_training_settings.dpcd_lane_settings);
+	/*Usage: Measure DP physical lane signal
+	 * by DP SI test equipment automatically.
+	 * PHY test pattern request is generated by equipment via HPD interrupt.
+	 * HPD needs to be active all the time. HPD should be active
+	 * all the time. Do not touch it.
+	 * forward request to DS
+	 */
+	dc_link_dp_set_test_pattern(
+		link,
+		test_pattern,
+		DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED,
+		&link_training_settings,
+		test_pattern_buffer,
+		test_pattern_size);
+}
+
+static void set_crtc_test_pattern(struct dc_link *link,
+				struct pipe_ctx *pipe_ctx,
+				enum dp_test_pattern test_pattern,
+				enum dp_test_pattern_color_space test_pattern_color_space)
+{
+	enum controller_dp_test_pattern controller_test_pattern;
+	enum dc_color_depth color_depth = pipe_ctx->
+		stream->timing.display_color_depth;
+	struct bit_depth_reduction_params params;
+	struct output_pixel_processor *opp = pipe_ctx->stream_res.opp;
+	int width = pipe_ctx->stream->timing.h_addressable +
+		pipe_ctx->stream->timing.h_border_left +
+		pipe_ctx->stream->timing.h_border_right;
+	int height = pipe_ctx->stream->timing.v_addressable +
+		pipe_ctx->stream->timing.v_border_bottom +
+		pipe_ctx->stream->timing.v_border_top;
+
+	memset(&params, 0, sizeof(params));
+
+	switch (test_pattern) {
+	case DP_TEST_PATTERN_COLOR_SQUARES:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_COLORSQUARES;
+	break;
+	case DP_TEST_PATTERN_COLOR_SQUARES_CEA:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA;
+	break;
+	case DP_TEST_PATTERN_VERTICAL_BARS:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_VERTICALBARS;
+	break;
+	case DP_TEST_PATTERN_HORIZONTAL_BARS:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_HORIZONTALBARS;
+	break;
+	case DP_TEST_PATTERN_COLOR_RAMP:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_COLORRAMP;
+	break;
+	default:
+		controller_test_pattern =
+				CONTROLLER_DP_TEST_PATTERN_VIDEOMODE;
+	break;
+	}
+
+	switch (test_pattern) {
+	case DP_TEST_PATTERN_COLOR_SQUARES:
+	case DP_TEST_PATTERN_COLOR_SQUARES_CEA:
+	case DP_TEST_PATTERN_VERTICAL_BARS:
+	case DP_TEST_PATTERN_HORIZONTAL_BARS:
+	case DP_TEST_PATTERN_COLOR_RAMP:
+	{
+		/* disable bit depth reduction */
+		pipe_ctx->stream->bit_depth_params = params;
+		opp->funcs->opp_program_bit_depth_reduction(opp, &params);
+		if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
+			pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
+				controller_test_pattern, color_depth);
+		else if (link->dc->hwss.set_disp_pattern_generator) {
+			struct pipe_ctx *odm_pipe;
+			enum controller_dp_color_space controller_color_space;
+			int opp_cnt = 1;
+			int offset = 0;
+			int dpg_width = width;
+
+			switch (test_pattern_color_space) {
+			case DP_TEST_PATTERN_COLOR_SPACE_RGB:
+				controller_color_space = CONTROLLER_DP_COLOR_SPACE_RGB;
+				break;
+			case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601:
+				controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR601;
+				break;
+			case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709:
+				controller_color_space = CONTROLLER_DP_COLOR_SPACE_YCBCR709;
+				break;
+			case DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED:
+			default:
+				controller_color_space = CONTROLLER_DP_COLOR_SPACE_UDEFINED;
+				DC_LOG_ERROR("%s: Color space must be defined for test pattern", __func__);
+				ASSERT(0);
+				break;
+			}
+
+			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
+				opp_cnt++;
+			dpg_width = width / opp_cnt;
+			offset = dpg_width;
+
+			link->dc->hwss.set_disp_pattern_generator(link->dc,
+					pipe_ctx,
+					controller_test_pattern,
+					controller_color_space,
+					color_depth,
+					NULL,
+					dpg_width,
+					height,
+					0);
+
+			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+				struct output_pixel_processor *odm_opp = odm_pipe->stream_res.opp;
+
+				odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, &params);
+				link->dc->hwss.set_disp_pattern_generator(link->dc,
+						odm_pipe,
+						controller_test_pattern,
+						controller_color_space,
+						color_depth,
+						NULL,
+						dpg_width,
+						height,
+						offset);
+				offset += offset;
+			}
+		}
+	}
+	break;
+	case DP_TEST_PATTERN_VIDEO_MODE:
+	{
+		/* restore bitdepth reduction */
+		resource_build_bit_depth_reduction_params(pipe_ctx->stream, &params);
+		pipe_ctx->stream->bit_depth_params = params;
+		opp->funcs->opp_program_bit_depth_reduction(opp, &params);
+		if (pipe_ctx->stream_res.tg->funcs->set_test_pattern)
+			pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
+				CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
+				color_depth);
+		else if (link->dc->hwss.set_disp_pattern_generator) {
+			struct pipe_ctx *odm_pipe;
+			int opp_cnt = 1;
+			int dpg_width;
+
+			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
+				opp_cnt++;
+
+			dpg_width = width / opp_cnt;
+			for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+				struct output_pixel_processor *odm_opp = odm_pipe->stream_res.opp;
+
+				odm_opp->funcs->opp_program_bit_depth_reduction(odm_opp, &params);
+				link->dc->hwss.set_disp_pattern_generator(link->dc,
+						odm_pipe,
+						CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
+						CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+						color_depth,
+						NULL,
+						dpg_width,
+						height,
+						0);
+			}
+			link->dc->hwss.set_disp_pattern_generator(link->dc,
+					pipe_ctx,
+					CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
+					CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+					color_depth,
+					NULL,
+					dpg_width,
+					height,
+					0);
+		}
+	}
+	break;
+
+	default:
+	break;
+	}
+}
+
+void dc_link_dp_handle_automated_test(struct dc_link *link)
+{
+	union test_request test_request;
+	union test_response test_response;
+
+	memset(&test_request, 0, sizeof(test_request));
+	memset(&test_response, 0, sizeof(test_response));
+
+	core_link_read_dpcd(
+		link,
+		DP_TEST_REQUEST,
+		&test_request.raw,
+		sizeof(union test_request));
+	if (test_request.bits.LINK_TRAINING) {
+		/* ACK first to let DP RX test box monitor LT sequence */
+		test_response.bits.ACK = 1;
+		core_link_write_dpcd(
+			link,
+			DP_TEST_RESPONSE,
+			&test_response.raw,
+			sizeof(test_response));
+		dp_test_send_link_training(link);
+		/* no acknowledge request is needed again */
+		test_response.bits.ACK = 0;
+	}
+	if (test_request.bits.LINK_TEST_PATTRN) {
+		union test_misc dpcd_test_params;
+		union link_test_pattern dpcd_test_pattern;
+
+		memset(&dpcd_test_pattern, 0, sizeof(dpcd_test_pattern));
+		memset(&dpcd_test_params, 0, sizeof(dpcd_test_params));
+
+		/* get link test pattern and pattern parameters */
+		core_link_read_dpcd(
+				link,
+				DP_TEST_PATTERN,
+				&dpcd_test_pattern.raw,
+				sizeof(dpcd_test_pattern));
+		core_link_read_dpcd(
+				link,
+				DP_TEST_MISC0,
+				&dpcd_test_params.raw,
+				sizeof(dpcd_test_params));
+		test_response.bits.ACK = dm_helpers_dp_handle_test_pattern_request(link->ctx, link,
+				dpcd_test_pattern, dpcd_test_params) ? 1 : 0;
+	}
+
+	if (test_request.bits.AUDIO_TEST_PATTERN) {
+		dp_test_get_audio_test_data(link, test_request.bits.TEST_AUDIO_DISABLED_VIDEO);
+		test_response.bits.ACK = 1;
+	}
+
+	if (test_request.bits.PHY_TEST_PATTERN) {
+		dp_test_send_phy_test_pattern(link);
+		test_response.bits.ACK = 1;
+	}
+
+	/* send request acknowledgment */
+	if (test_response.bits.ACK)
+		core_link_write_dpcd(
+			link,
+			DP_TEST_RESPONSE,
+			&test_response.raw,
+			sizeof(test_response));
+}
+
+bool dc_link_dp_set_test_pattern(
+	struct dc_link *link,
+	enum dp_test_pattern test_pattern,
+	enum dp_test_pattern_color_space test_pattern_color_space,
+	const struct link_training_settings *p_link_settings,
+	const unsigned char *p_custom_pattern,
+	unsigned int cust_pattern_size)
+{
+	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
+	struct pipe_ctx *pipe_ctx = NULL;
+	unsigned int lane;
+	unsigned int i;
+	unsigned char link_qual_pattern[LANE_COUNT_DP_MAX] = {0};
+	union dpcd_training_pattern training_pattern;
+	enum dpcd_phy_test_patterns pattern;
+
+	memset(&training_pattern, 0, sizeof(training_pattern));
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		if (pipes[i].stream == NULL)
+			continue;
+
+		if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) {
+			pipe_ctx = &pipes[i];
+			break;
+		}
+	}
+
+	if (pipe_ctx == NULL)
+		return false;
+
+	/* Reset CRTC Test Pattern if it is currently running and request is VideoMode */
+	if (link->test_pattern_enabled && test_pattern ==
+			DP_TEST_PATTERN_VIDEO_MODE) {
+		/* Set CRTC Test Pattern */
+		set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space);
+		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
+				(uint8_t *)p_custom_pattern,
+				(uint32_t)cust_pattern_size);
+
+		/* Unblank Stream */
+		link->dc->hwss.unblank_stream(
+			pipe_ctx,
+			&link->verified_link_cap);
+		/* TODO:m_pHwss->MuteAudioEndpoint
+		 * (pPathMode->pDisplayPath, false);
+		 */
+
+		/* Reset Test Pattern state */
+		link->test_pattern_enabled = false;
+
+		return true;
+	}
+
+	/* Check for PHY Test Patterns */
+	if (is_dp_phy_pattern(test_pattern)) {
+		/* Set DPCD Lane Settings before running test pattern */
+		if (p_link_settings != NULL) {
+			if ((link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&
+					p_link_settings->lttpr_mode == LTTPR_MODE_TRANSPARENT) {
+				dp_fixed_vs_pe_set_retimer_lane_settings(
+						link,
+						p_link_settings->dpcd_lane_settings,
+						p_link_settings->link_settings.lane_count);
+			} else {
+				dp_set_hw_lane_settings(link, &pipe_ctx->link_res, p_link_settings, DPRX);
+			}
+			dpcd_set_lane_settings(link, p_link_settings, DPRX);
+		}
+
+		/* Blank stream if running test pattern */
+		if (test_pattern != DP_TEST_PATTERN_VIDEO_MODE) {
+			/*TODO:
+			 * m_pHwss->
+			 * MuteAudioEndpoint(pPathMode->pDisplayPath, true);
+			 */
+			/* Blank stream */
+			link->dc->hwss.blank_stream(pipe_ctx);
+		}
+
+		dp_set_hw_test_pattern(link, &pipe_ctx->link_res, test_pattern,
+				(uint8_t *)p_custom_pattern,
+				(uint32_t)cust_pattern_size);
+
+		if (test_pattern != DP_TEST_PATTERN_VIDEO_MODE) {
+			/* Set Test Pattern state */
+			link->test_pattern_enabled = true;
+			if (p_link_settings != NULL)
+				dpcd_set_link_settings(link,
+						p_link_settings);
+		}
+
+		switch (test_pattern) {
+		case DP_TEST_PATTERN_VIDEO_MODE:
+			pattern = PHY_TEST_PATTERN_NONE;
+			break;
+		case DP_TEST_PATTERN_D102:
+			pattern = PHY_TEST_PATTERN_D10_2;
+			break;
+		case DP_TEST_PATTERN_SYMBOL_ERROR:
+			pattern = PHY_TEST_PATTERN_SYMBOL_ERROR;
+			break;
+		case DP_TEST_PATTERN_PRBS7:
+			pattern = PHY_TEST_PATTERN_PRBS7;
+			break;
+		case DP_TEST_PATTERN_80BIT_CUSTOM:
+			pattern = PHY_TEST_PATTERN_80BIT_CUSTOM;
+			break;
+		case DP_TEST_PATTERN_CP2520_1:
+			pattern = PHY_TEST_PATTERN_CP2520_1;
+			break;
+		case DP_TEST_PATTERN_CP2520_2:
+			pattern = PHY_TEST_PATTERN_CP2520_2;
+			break;
+		case DP_TEST_PATTERN_CP2520_3:
+			pattern = PHY_TEST_PATTERN_CP2520_3;
+			break;
+		case DP_TEST_PATTERN_128b_132b_TPS1:
+			pattern = PHY_TEST_PATTERN_128b_132b_TPS1;
+			break;
+		case DP_TEST_PATTERN_128b_132b_TPS2:
+			pattern = PHY_TEST_PATTERN_128b_132b_TPS2;
+			break;
+		case DP_TEST_PATTERN_PRBS9:
+			pattern = PHY_TEST_PATTERN_PRBS9;
+			break;
+		case DP_TEST_PATTERN_PRBS11:
+			pattern = PHY_TEST_PATTERN_PRBS11;
+			break;
+		case DP_TEST_PATTERN_PRBS15:
+			pattern = PHY_TEST_PATTERN_PRBS15;
+			break;
+		case DP_TEST_PATTERN_PRBS23:
+			pattern = PHY_TEST_PATTERN_PRBS23;
+			break;
+		case DP_TEST_PATTERN_PRBS31:
+			pattern = PHY_TEST_PATTERN_PRBS31;
+			break;
+		case DP_TEST_PATTERN_264BIT_CUSTOM:
+			pattern = PHY_TEST_PATTERN_264BIT_CUSTOM;
+			break;
+		case DP_TEST_PATTERN_SQUARE:
+			pattern = PHY_TEST_PATTERN_SQUARE;
+			break;
+		case DP_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED:
+			pattern = PHY_TEST_PATTERN_SQUARE_PRESHOOT_DISABLED;
+			break;
+		case DP_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED:
+			pattern = PHY_TEST_PATTERN_SQUARE_DEEMPHASIS_DISABLED;
+			break;
+		case DP_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED:
+			pattern = PHY_TEST_PATTERN_SQUARE_PRESHOOT_DEEMPHASIS_DISABLED;
+			break;
+		default:
+			return false;
+		}
+
+		if (test_pattern == DP_TEST_PATTERN_VIDEO_MODE
+		/*TODO:&& !pPathMode->pDisplayPath->IsTargetPoweredOn()*/)
+			return false;
+
+		if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_12) {
+			if (is_dp_phy_sqaure_pattern(test_pattern))
+				core_link_write_dpcd(link,
+						DP_LINK_SQUARE_PATTERN,
+						p_custom_pattern,
+						1);
+
+			/* tell receiver that we are sending qualification
+			 * pattern DP 1.2 or later - DP receiver's link quality
+			 * pattern is set using DPCD LINK_QUAL_LANEx_SET
+			 * register (0x10B~0x10E)\
+			 */
+			for (lane = 0; lane < LANE_COUNT_DP_MAX; lane++)
+				link_qual_pattern[lane] =
+						(unsigned char)(pattern);
+
+			core_link_write_dpcd(link,
+					DP_LINK_QUAL_LANE0_SET,
+					link_qual_pattern,
+					sizeof(link_qual_pattern));
+		} else if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_10 ||
+			   link->dpcd_caps.dpcd_rev.raw == 0) {
+			/* tell receiver that we are sending qualification
+			 * pattern DP 1.1a or earlier - DP receiver's link
+			 * quality pattern is set using
+			 * DPCD TRAINING_PATTERN_SET -> LINK_QUAL_PATTERN_SET
+			 * register (0x102). We will use v_1.3 when we are
+			 * setting test pattern for DP 1.1.
+			 */
+			core_link_read_dpcd(link, DP_TRAINING_PATTERN_SET,
+					    &training_pattern.raw,
+					    sizeof(training_pattern));
+			training_pattern.v1_3.LINK_QUAL_PATTERN_SET = pattern;
+			core_link_write_dpcd(link, DP_TRAINING_PATTERN_SET,
+					     &training_pattern.raw,
+					     sizeof(training_pattern));
+		}
+	} else {
+		enum dc_color_space color_space = COLOR_SPACE_UNKNOWN;
+
+		switch (test_pattern_color_space) {
+		case DP_TEST_PATTERN_COLOR_SPACE_RGB:
+			color_space = COLOR_SPACE_SRGB;
+			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
+				color_space = COLOR_SPACE_SRGB_LIMITED;
+			break;
+
+		case DP_TEST_PATTERN_COLOR_SPACE_YCBCR601:
+			color_space = COLOR_SPACE_YCBCR601;
+			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
+				color_space = COLOR_SPACE_YCBCR601_LIMITED;
+			break;
+		case DP_TEST_PATTERN_COLOR_SPACE_YCBCR709:
+			color_space = COLOR_SPACE_YCBCR709;
+			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
+				color_space = COLOR_SPACE_YCBCR709_LIMITED;
+			break;
+		default:
+			break;
+		}
+
+		if (pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_enable) {
+			if (pipe_ctx->stream && should_use_dmub_lock(pipe_ctx->stream->link)) {
+				union dmub_hw_lock_flags hw_locks = { 0 };
+				struct dmub_hw_lock_inst_flags inst_flags = { 0 };
+
+				hw_locks.bits.lock_dig = 1;
+				inst_flags.dig_inst = pipe_ctx->stream_res.tg->inst;
+
+				dmub_hw_lock_mgr_cmd(link->ctx->dmub_srv,
+							true,
+							&hw_locks,
+							&inst_flags);
+			} else
+				pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_enable(
+						pipe_ctx->stream_res.tg);
+		}
+
+		pipe_ctx->stream_res.tg->funcs->lock(pipe_ctx->stream_res.tg);
+		/* update MSA to requested color space */
+		pipe_ctx->stream_res.stream_enc->funcs->dp_set_stream_attribute(pipe_ctx->stream_res.stream_enc,
+				&pipe_ctx->stream->timing,
+				color_space,
+				pipe_ctx->stream->use_vsc_sdp_for_colorimetry,
+				link->dpcd_caps.dprx_feature.bits.SST_SPLIT_SDP_CAP);
+
+		if (pipe_ctx->stream->use_vsc_sdp_for_colorimetry) {
+			if (test_pattern == DP_TEST_PATTERN_COLOR_SQUARES_CEA)
+				pipe_ctx->stream->vsc_infopacket.sb[17] |= (1 << 7); // sb17 bit 7 Dynamic Range: 0 = VESA range, 1 = CTA range
+			else
+				pipe_ctx->stream->vsc_infopacket.sb[17] &= ~(1 << 7);
+			resource_build_info_frame(pipe_ctx);
+			link->dc->hwss.update_info_frame(pipe_ctx);
+		}
+
+		/* CRTC Patterns */
+		set_crtc_test_pattern(link, pipe_ctx, test_pattern, test_pattern_color_space);
+		pipe_ctx->stream_res.tg->funcs->unlock(pipe_ctx->stream_res.tg);
+		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
+				CRTC_STATE_VACTIVE);
+		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
+				CRTC_STATE_VBLANK);
+		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg,
+				CRTC_STATE_VACTIVE);
+
+		if (pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_disable) {
+			if (pipe_ctx->stream && should_use_dmub_lock(pipe_ctx->stream->link)) {
+				union dmub_hw_lock_flags hw_locks = { 0 };
+				struct dmub_hw_lock_inst_flags inst_flags = { 0 };
+
+				hw_locks.bits.lock_dig = 1;
+				inst_flags.dig_inst = pipe_ctx->stream_res.tg->inst;
+
+				dmub_hw_lock_mgr_cmd(link->ctx->dmub_srv,
+							false,
+							&hw_locks,
+							&inst_flags);
+			} else
+				pipe_ctx->stream_res.tg->funcs->lock_doublebuffer_disable(
+						pipe_ctx->stream_res.tg);
+		}
+
+		/* Set Test Pattern state */
+		link->test_pattern_enabled = true;
+	}
+
+	return true;
+}
+
+void dc_link_set_drive_settings(struct dc *dc,
+				struct link_training_settings *lt_settings,
+				const struct dc_link *link)
+{
+
+	int i;
+	struct link_resource link_res;
+
+	for (i = 0; i < dc->link_count; i++)
+		if (dc->links[i] == link)
+			break;
+
+	if (i >= dc->link_count)
+		ASSERT_CRITICAL(false);
+
+	dc_link_get_cur_link_res(link, &link_res);
+	dp_set_drive_settings(dc->links[i], &link_res, lt_settings);
+}
+
+void dc_link_set_preferred_link_settings(struct dc *dc,
+					 struct dc_link_settings *link_setting,
+					 struct dc_link *link)
+{
+	int i;
+	struct pipe_ctx *pipe;
+	struct dc_stream_state *link_stream;
+	struct dc_link_settings store_settings = *link_setting;
+
+	link->preferred_link_setting = store_settings;
+
+	/* Retrain with preferred link settings only relevant for
+	 * DP signal type
+	 * Check for non-DP signal or if passive dongle present
+	 */
+	if (!dc_is_dp_signal(link->connector_signal) ||
+		link->dongle_max_pix_clk > 0)
+		return;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe->stream && pipe->stream->link) {
+			if (pipe->stream->link == link) {
+				link_stream = pipe->stream;
+				break;
+			}
+		}
+	}
+
+	/* Stream not found */
+	if (i == MAX_PIPES)
+		return;
+
+	/* Cannot retrain link if backend is off */
+	if (link_stream->dpms_off)
+		return;
+
+	if (link_decide_link_settings(link_stream, &store_settings))
+		dp_retrain_link_dp_test(link, &store_settings, false);
+}
+
+void dc_link_set_preferred_training_settings(struct dc *dc,
+						 struct dc_link_settings *link_setting,
+						 struct dc_link_training_overrides *lt_overrides,
+						 struct dc_link *link,
+						 bool skip_immediate_retrain)
+{
+	if (lt_overrides != NULL)
+		link->preferred_training_settings = *lt_overrides;
+	else
+		memset(&link->preferred_training_settings, 0, sizeof(link->preferred_training_settings));
+
+	if (link_setting != NULL) {
+		link->preferred_link_setting = *link_setting;
+	} else {
+		link->preferred_link_setting.lane_count = LANE_COUNT_UNKNOWN;
+		link->preferred_link_setting.link_rate = LINK_RATE_UNKNOWN;
+	}
+
+	if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT &&
+			link->type == dc_connection_mst_branch)
+		dm_helpers_dp_mst_update_branch_bandwidth(dc->ctx, link);
+
+	/* Retrain now, or wait until next stream update to apply */
+	if (skip_immediate_retrain == false)
+		dc_link_set_preferred_link_settings(dc, &link->preferred_link_setting, link);
+}
+
+void dc_link_set_test_pattern(struct dc_link *link,
+		enum dp_test_pattern test_pattern,
+		enum dp_test_pattern_color_space test_pattern_color_space,
+		const struct link_training_settings *p_link_settings,
+		const unsigned char *p_custom_pattern,
+		unsigned int cust_pattern_size)
+{
+	if (link != NULL)
+		dc_link_dp_set_test_pattern(
+			link,
+			test_pattern,
+			test_pattern_color_space,
+			p_link_settings,
+			p_custom_pattern,
+			cust_pattern_size);
+}
diff --git a/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.h b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.h
new file mode 100644
index 000000000000..7f17838b653b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __LINK_DP_CTS_H__
+#define __LINK_DP_CTS_H__
+#include "link.h"
+
+void dp_retrain_link_dp_test(struct dc_link *link,
+		struct dc_link_settings *link_setting,
+		bool skip_video_pattern);
+
+#endif /* __LINK_DP_CTS_H__ */