drm/i915: Plumb crtc_state to link training

Get rid of mode crtc->config usage, and some ad-hoc intel_dp state
usage by plumbing the crtc state all the way down to the link training
code.

Unfortunately we do have to keep some cached state in intel_dp so
that we can do the "does the link need retraining?" checks from
the short hpd handler.

v2: Add intel_crtc_state forward declaration
v3: Don't kill the PHY test code totally since it's
    now in the hotplug work where we can get at the states
v4: Don't resurrect the debug scrambling disable bit (Imre)
    Use intel_dp_mst_is_master_trans() (Imre)
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201001111053.24451-1-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/display/intel_ddi.c

@@ -1034,7 +1034,8 @@ cnl_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
 }
 
 static const struct cnl_ddi_buf_trans *
-icl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
+icl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state,
 			     int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
@@ -1042,7 +1043,8 @@ icl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-icl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
+icl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
+			   const struct intel_crtc_state *crtc_state,
 			   int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
@@ -1050,12 +1052,13 @@ icl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-icl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
+icl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state,
 			    int *n_entries)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
-	if (rate > 540000) {
+	if (crtc_state->port_clock > 540000) {
 		*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
 		return icl_combo_phy_ddi_translations_edp_hbr3;
 	} else if (dev_priv->vbt.edp.low_vswing) {
@@ -1063,23 +1066,25 @@ icl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
 		return icl_combo_phy_ddi_translations_edp_hbr2;
 	}
 
-	return icl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+	return icl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct cnl_ddi_buf_trans *
-icl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
+icl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
 			int *n_entries)
 {
-	if (type == INTEL_OUTPUT_HDMI)
-		return icl_get_combo_buf_trans_hdmi(encoder, type, rate, n_entries);
-	else if (type == INTEL_OUTPUT_EDP)
-		return icl_get_combo_buf_trans_edp(encoder, type, rate, n_entries);
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return icl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return icl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
 	else
-		return icl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+		return icl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct icl_mg_phy_ddi_buf_trans *
-icl_get_mg_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
+icl_get_mg_buf_trans_hdmi(struct intel_encoder *encoder,
+			  const struct intel_crtc_state *crtc_state,
 			  int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations_hdmi);
@@ -1087,10 +1092,11 @@ icl_get_mg_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct icl_mg_phy_ddi_buf_trans *
-icl_get_mg_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
+icl_get_mg_buf_trans_dp(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
 			int *n_entries)
 {
-	if (rate > 270000) {
+	if (crtc_state->port_clock > 270000) {
 		*n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations_hbr2_hbr3);
 		return icl_mg_phy_ddi_translations_hbr2_hbr3;
 	} else {
@@ -1100,17 +1106,19 @@ icl_get_mg_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct icl_mg_phy_ddi_buf_trans *
-icl_get_mg_buf_trans(struct intel_encoder *encoder, int type, int rate,
+icl_get_mg_buf_trans(struct intel_encoder *encoder,
+		     const struct intel_crtc_state *crtc_state,
 		     int *n_entries)
 {
-	if (type == INTEL_OUTPUT_HDMI)
-		return icl_get_mg_buf_trans_hdmi(encoder, type, rate, n_entries);
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return icl_get_mg_buf_trans_hdmi(encoder, crtc_state, n_entries);
 	else
-		return icl_get_mg_buf_trans_dp(encoder, type, rate, n_entries);
+		return icl_get_mg_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct cnl_ddi_buf_trans *
-ehl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
+ehl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state,
 			     int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
@@ -1118,7 +1126,8 @@ ehl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-ehl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
+ehl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
+			   const struct intel_crtc_state *crtc_state,
 			   int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(ehl_combo_phy_ddi_translations_dp);
@@ -1126,13 +1135,14 @@ ehl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-ehl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
+ehl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state,
 			    int *n_entries)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
 	if (dev_priv->vbt.edp.low_vswing) {
-		if (rate > 540000) {
+		if (crtc_state->port_clock > 540000) {
 			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
 			return icl_combo_phy_ddi_translations_edp_hbr3;
 		} else {
@@ -1141,23 +1151,25 @@ ehl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
 		}
 	}
 
-	return ehl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+	return ehl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct cnl_ddi_buf_trans *
-ehl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
+ehl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
 			int *n_entries)
 {
-	if (type == INTEL_OUTPUT_HDMI)
-		return ehl_get_combo_buf_trans_hdmi(encoder, type, rate, n_entries);
-	else if (type == INTEL_OUTPUT_EDP)
-		return ehl_get_combo_buf_trans_edp(encoder, type, rate, n_entries);
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return ehl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return ehl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
 	else
-		return ehl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+		return ehl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct cnl_ddi_buf_trans *
-tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
+tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
+			     const struct intel_crtc_state *crtc_state,
 			     int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
@@ -1165,12 +1177,13 @@ tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-tgl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
+tgl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
+			   const struct intel_crtc_state *crtc_state,
 			   int *n_entries)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
-	if (rate > 270000) {
+	if (crtc_state->port_clock > 270000) {
 		if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
 			*n_entries = ARRAY_SIZE(tgl_uy_combo_phy_ddi_translations_dp_hbr2);
 			return tgl_uy_combo_phy_ddi_translations_dp_hbr2;
@@ -1185,13 +1198,14 @@ tgl_get_combo_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct cnl_ddi_buf_trans *
-tgl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
+tgl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state,
 			    int *n_entries)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
-	if (rate > 540000) {
+	if (crtc_state->port_clock > 540000) {
 		*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
 		return icl_combo_phy_ddi_translations_edp_hbr3;
 	} else if (dev_priv->vbt.edp.hobl && !intel_dp->hobl_failed) {
@@ -1202,23 +1216,25 @@ tgl_get_combo_buf_trans_edp(struct intel_encoder *encoder, int type, int rate,
 		return icl_combo_phy_ddi_translations_edp_hbr2;
 	}
 
-	return tgl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+	return tgl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct cnl_ddi_buf_trans *
-tgl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
+tgl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
 			int *n_entries)
 {
-	if (type == INTEL_OUTPUT_HDMI)
-		return tgl_get_combo_buf_trans_hdmi(encoder, type, rate, n_entries);
-	else if (type == INTEL_OUTPUT_EDP)
-		return tgl_get_combo_buf_trans_edp(encoder, type, rate, n_entries);
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return tgl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+		return tgl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
 	else
-		return tgl_get_combo_buf_trans_dp(encoder, type, rate, n_entries);
+		return tgl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
 static const struct tgl_dkl_phy_ddi_buf_trans *
-tgl_get_dkl_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
+tgl_get_dkl_buf_trans_hdmi(struct intel_encoder *encoder,
+			   const struct intel_crtc_state *crtc_state,
 			   int *n_entries)
 {
 	*n_entries = ARRAY_SIZE(tgl_dkl_phy_hdmi_ddi_trans);
@@ -1226,10 +1242,11 @@ tgl_get_dkl_buf_trans_hdmi(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct tgl_dkl_phy_ddi_buf_trans *
-tgl_get_dkl_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
+tgl_get_dkl_buf_trans_dp(struct intel_encoder *encoder,
+			 const struct intel_crtc_state *crtc_state,
 			 int *n_entries)
 {
-	if (rate > 270000) {
+	if (crtc_state->port_clock > 270000) {
 		*n_entries = ARRAY_SIZE(tgl_dkl_phy_dp_ddi_trans_hbr2);
 		return tgl_dkl_phy_dp_ddi_trans_hbr2;
 	} else {
@@ -1239,16 +1256,18 @@ tgl_get_dkl_buf_trans_dp(struct intel_encoder *encoder, int type, int rate,
 }
 
 static const struct tgl_dkl_phy_ddi_buf_trans *
-tgl_get_dkl_buf_trans(struct intel_encoder *encoder, int type, int rate,
+tgl_get_dkl_buf_trans(struct intel_encoder *encoder,
+		      const struct intel_crtc_state *crtc_state,
 		      int *n_entries)
 {
-	if (type == INTEL_OUTPUT_HDMI)
-		return tgl_get_dkl_buf_trans_hdmi(encoder, type, rate, n_entries);
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		return tgl_get_dkl_buf_trans_hdmi(encoder, crtc_state, n_entries);
 	else
-		return tgl_get_dkl_buf_trans_dp(encoder, type, rate, n_entries);
+		return tgl_get_dkl_buf_trans_dp(encoder, crtc_state, n_entries);
 }
 
-static int intel_ddi_hdmi_level(struct intel_encoder *encoder)
+static int intel_ddi_hdmi_level(struct intel_encoder *encoder,
+				const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	int n_entries, level, default_entry;
@@ -1256,19 +1275,15 @@ static int intel_ddi_hdmi_level(struct intel_encoder *encoder)
 
 	if (INTEL_GEN(dev_priv) >= 12) {
 		if (intel_phy_is_combo(dev_priv, phy))
-			tgl_get_combo_buf_trans(encoder, INTEL_OUTPUT_HDMI,
-						0, &n_entries);
+			tgl_get_combo_buf_trans_hdmi(encoder, crtc_state, &n_entries);
 		else
-			tgl_get_dkl_buf_trans(encoder, INTEL_OUTPUT_HDMI, 0,
-					      &n_entries);
+			tgl_get_dkl_buf_trans_hdmi(encoder, crtc_state, &n_entries);
 		default_entry = n_entries - 1;
 	} else if (INTEL_GEN(dev_priv) == 11) {
 		if (intel_phy_is_combo(dev_priv, phy))
-			icl_get_combo_buf_trans(encoder, INTEL_OUTPUT_HDMI,
-						0, &n_entries);
+			icl_get_combo_buf_trans_hdmi(encoder, crtc_state, &n_entries);
 		else
-			icl_get_mg_buf_trans(encoder, INTEL_OUTPUT_HDMI, 0,
-					     &n_entries);
+			icl_get_mg_buf_trans_hdmi(encoder, crtc_state, &n_entries);
 		default_entry = n_entries - 1;
 	} else if (IS_CANNONLAKE(dev_priv)) {
 		cnl_get_buf_trans_hdmi(encoder, &n_entries);
@@ -1595,14 +1610,15 @@ void hsw_fdi_link_train(struct intel_encoder *encoder,
 		       DP_TP_CTL_ENABLE);
 }
 
-static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder)
+static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder,
+				      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
 
 	intel_dp->DP = dig_port->saved_port_bits |
 		DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0);
-	intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count);
+	intel_dp->DP |= DDI_PORT_WIDTH(crtc_state->lane_count);
 }
 
 static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv,
@@ -2266,13 +2282,14 @@ static void _skl_ddi_set_iboost(struct drm_i915_private *dev_priv,
 }
 
 static void skl_ddi_set_iboost(struct intel_encoder *encoder,
-			       int level, enum intel_output_type type)
+			       const struct intel_crtc_state *crtc_state,
+			       int level)
 {
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	u8 iboost;
 
-	if (type == INTEL_OUTPUT_HDMI)
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 		iboost = intel_bios_hdmi_boost_level(encoder);
 	else
 		iboost = intel_bios_dp_boost_level(encoder);
@@ -2281,14 +2298,12 @@ static void skl_ddi_set_iboost(struct intel_encoder *encoder,
 		const struct ddi_buf_trans *ddi_translations;
 		int n_entries;
 
-		if (type == INTEL_OUTPUT_HDMI)
+		if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 			ddi_translations = intel_ddi_get_buf_trans_hdmi(encoder, &n_entries);
-		else if (type == INTEL_OUTPUT_EDP)
-			ddi_translations = intel_ddi_get_buf_trans_edp(encoder,
-								       &n_entries);
+		else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+			ddi_translations = intel_ddi_get_buf_trans_edp(encoder, &n_entries);
 		else
-			ddi_translations = intel_ddi_get_buf_trans_dp(encoder,
-								      &n_entries);
+			ddi_translations = intel_ddi_get_buf_trans_dp(encoder, &n_entries);
 
 		if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations))
 			return;
@@ -2311,16 +2326,17 @@ static void skl_ddi_set_iboost(struct intel_encoder *encoder,
 }
 
 static void bxt_ddi_vswing_sequence(struct intel_encoder *encoder,
-				    int level, enum intel_output_type type)
+				    const struct intel_crtc_state *crtc_state,
+				    int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	const struct bxt_ddi_buf_trans *ddi_translations;
 	enum port port = encoder->port;
 	int n_entries;
 
-	if (type == INTEL_OUTPUT_HDMI)
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 		ddi_translations = bxt_get_buf_trans_hdmi(encoder, &n_entries);
-	else if (type == INTEL_OUTPUT_EDP)
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
 		ddi_translations = bxt_get_buf_trans_edp(encoder, &n_entries);
 	else
 		ddi_translations = bxt_get_buf_trans_dp(encoder, &n_entries);
@@ -2337,7 +2353,8 @@ static void bxt_ddi_vswing_sequence(struct intel_encoder *encoder,
 				     ddi_translations[level].deemphasis);
 }
 
-static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp)
+static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp,
+				   const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
@@ -2347,33 +2364,28 @@ static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp)
 
 	if (INTEL_GEN(dev_priv) >= 12) {
 		if (intel_phy_is_combo(dev_priv, phy))
-			tgl_get_combo_buf_trans(encoder, encoder->type,
-						intel_dp->link_rate, &n_entries);
+			tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 		else
-			tgl_get_dkl_buf_trans(encoder, encoder->type,
-					      intel_dp->link_rate, &n_entries);
+			tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
 	} else if (INTEL_GEN(dev_priv) == 11) {
 		if (IS_ELKHARTLAKE(dev_priv))
-			ehl_get_combo_buf_trans(encoder, encoder->type,
-						intel_dp->link_rate, &n_entries);
+			ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 		else if (intel_phy_is_combo(dev_priv, phy))
-			icl_get_combo_buf_trans(encoder, encoder->type,
-						intel_dp->link_rate, &n_entries);
+			icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 		else
-			icl_get_mg_buf_trans(encoder, encoder->type,
-					     intel_dp->link_rate, &n_entries);
+			icl_get_mg_buf_trans(encoder, crtc_state, &n_entries);
 	} else if (IS_CANNONLAKE(dev_priv)) {
-		if (encoder->type == INTEL_OUTPUT_EDP)
+		if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
 			cnl_get_buf_trans_edp(encoder, &n_entries);
 		else
 			cnl_get_buf_trans_dp(encoder, &n_entries);
 	} else if (IS_GEN9_LP(dev_priv)) {
-		if (encoder->type == INTEL_OUTPUT_EDP)
+		if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
 			bxt_get_buf_trans_edp(encoder, &n_entries);
 		else
 			bxt_get_buf_trans_dp(encoder, &n_entries);
 	} else {
-		if (encoder->type == INTEL_OUTPUT_EDP)
+		if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
 			intel_ddi_get_buf_trans_edp(encoder, &n_entries);
 		else
 			intel_ddi_get_buf_trans_dp(encoder, &n_entries);
@@ -2400,7 +2412,8 @@ static u8 intel_ddi_dp_preemph_max(struct intel_dp *intel_dp)
 }
 
 static void cnl_ddi_vswing_program(struct intel_encoder *encoder,
-				   int level, enum intel_output_type type)
+				   const struct intel_crtc_state *crtc_state,
+				   int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	const struct cnl_ddi_buf_trans *ddi_translations;
@@ -2408,9 +2421,9 @@ static void cnl_ddi_vswing_program(struct intel_encoder *encoder,
 	int n_entries, ln;
 	u32 val;
 
-	if (type == INTEL_OUTPUT_HDMI)
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 		ddi_translations = cnl_get_buf_trans_hdmi(encoder, &n_entries);
-	else if (type == INTEL_OUTPUT_EDP)
+	else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
 		ddi_translations = cnl_get_buf_trans_edp(encoder, &n_entries);
 	else
 		ddi_translations = cnl_get_buf_trans_dp(encoder, &n_entries);
@@ -2464,22 +2477,16 @@ static void cnl_ddi_vswing_program(struct intel_encoder *encoder,
 }
 
 static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
-				    int level, enum intel_output_type type)
+				    const struct intel_crtc_state *crtc_state,
+				    int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum port port = encoder->port;
 	int width, rate, ln;
 	u32 val;
 
-	if (type == INTEL_OUTPUT_HDMI) {
-		width = 4;
-		rate = 0; /* Rate is always < than 6GHz for HDMI */
-	} else {
-		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
-		width = intel_dp->lane_count;
-		rate = intel_dp->link_rate;
-	}
+	width = crtc_state->lane_count;
+	rate = crtc_state->port_clock;
 
 	/*
 	 * 1. If port type is eDP or DP,
@@ -2487,10 +2494,10 @@ static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
 	 * else clear to 0b.
 	 */
 	val = intel_de_read(dev_priv, CNL_PORT_PCS_DW1_LN0(port));
-	if (type != INTEL_OUTPUT_HDMI)
-		val |= COMMON_KEEPER_EN;
-	else
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 		val &= ~COMMON_KEEPER_EN;
+	else
+		val |= COMMON_KEEPER_EN;
 	intel_de_write(dev_priv, CNL_PORT_PCS_DW1_GRP(port), val);
 
 	/* 2. Program loadgen select */
@@ -2522,7 +2529,7 @@ static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
 	intel_de_write(dev_priv, CNL_PORT_TX_DW5_GRP(port), val);
 
 	/* 5. Program swing and de-emphasis */
-	cnl_ddi_vswing_program(encoder, level, type);
+	cnl_ddi_vswing_program(encoder, crtc_state, level);
 
 	/* 6. Set training enable to trigger update */
 	val = intel_de_read(dev_priv, CNL_PORT_TX_DW5_LN0(port));
@@ -2531,23 +2538,21 @@ static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
 }
 
 static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
-					 u32 level, int type, int rate)
+					 const struct intel_crtc_state *crtc_state,
+					 int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	const struct cnl_ddi_buf_trans *ddi_translations;
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
-	const struct cnl_ddi_buf_trans *ddi_translations = NULL;
-	u32 n_entries, val;
-	int ln;
+	int n_entries, ln;
+	u32 val;
 
 	if (INTEL_GEN(dev_priv) >= 12)
-		ddi_translations = tgl_get_combo_buf_trans(encoder, type, rate,
-							   &n_entries);
+		ddi_translations = tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 	else if (IS_ELKHARTLAKE(dev_priv))
-		ddi_translations = ehl_get_combo_buf_trans(encoder, type, rate,
-							   &n_entries);
+		ddi_translations = ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 	else
-		ddi_translations = icl_get_combo_buf_trans(encoder, type, rate,
-							   &n_entries);
+		ddi_translations = icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
 	if (!ddi_translations)
 		return;
 
@@ -2558,7 +2563,7 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
 		level = n_entries - 1;
 	}
 
-	if (type == INTEL_OUTPUT_EDP) {
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) {
 		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
 		val = EDP4K2K_MODE_OVRD_EN | EDP4K2K_MODE_OVRD_OPTIMIZED;
@@ -2606,25 +2611,16 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
 }
 
 static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
-					      u32 level,
-					      enum intel_output_type type)
+					      const struct intel_crtc_state *crtc_state,
+					      int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
-	int width = 0;
-	int rate = 0;
+	int width, rate, ln;
 	u32 val;
-	int ln = 0;
-
-	if (type == INTEL_OUTPUT_HDMI) {
-		width = 4;
-		/* Rate is always < than 6GHz for HDMI */
-	} else {
-		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
-		width = intel_dp->lane_count;
-		rate = intel_dp->link_rate;
-	}
+	width = crtc_state->lane_count;
+	rate = crtc_state->port_clock;
 
 	/*
 	 * 1. If port type is eDP or DP,
@@ -2632,7 +2628,7 @@ static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	 * else clear to 0b.
 	 */
 	val = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN0(phy));
-	if (type == INTEL_OUTPUT_HDMI)
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
 		val &= ~COMMON_KEEPER_EN;
 	else
 		val |= COMMON_KEEPER_EN;
@@ -2667,7 +2663,7 @@ static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val);
 
 	/* 5. Program swing and de-emphasis */
-	icl_ddi_combo_vswing_program(encoder, level, type, rate);
+	icl_ddi_combo_vswing_program(encoder, crtc_state, level);
 
 	/* 6. Set training enable to trigger update */
 	val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN0(phy));
@@ -2676,23 +2672,16 @@ static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 }
 
 static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
-					   int link_clock, u32 level,
-					   enum intel_output_type type)
+					   const struct intel_crtc_state *crtc_state,
+					   int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum tc_port tc_port = intel_port_to_tc(dev_priv, encoder->port);
 	const struct icl_mg_phy_ddi_buf_trans *ddi_translations;
-	u32 n_entries, val;
-	int ln, rate = 0;
-
-	if (type != INTEL_OUTPUT_HDMI) {
-		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
-		rate = intel_dp->link_rate;
-	}
+	int n_entries, ln;
+	u32 val;
 
-	ddi_translations = icl_get_mg_buf_trans(encoder, type, rate,
-						&n_entries);
+	ddi_translations = icl_get_mg_buf_trans(encoder, crtc_state, &n_entries);
 	/* The table does not have values for level 3 and level 9. */
 	if (level >= n_entries || level == 3 || level == 9) {
 		drm_dbg_kms(&dev_priv->drm,
@@ -2759,7 +2748,7 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	 */
 	for (ln = 0; ln < 2; ln++) {
 		val = intel_de_read(dev_priv, MG_CLKHUB(ln, tc_port));
-		if (link_clock < 300000)
+		if (crtc_state->port_clock < 300000)
 			val |= CFG_LOW_RATE_LKREN_EN;
 		else
 			val &= ~CFG_LOW_RATE_LKREN_EN;
@@ -2770,7 +2759,7 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	for (ln = 0; ln < 2; ln++) {
 		val = intel_de_read(dev_priv, MG_TX1_DCC(ln, tc_port));
 		val &= ~CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK;
-		if (link_clock <= 500000) {
+		if (crtc_state->port_clock <= 500000) {
 			val &= ~CFG_AMI_CK_DIV_OVERRIDE_EN;
 		} else {
 			val |= CFG_AMI_CK_DIV_OVERRIDE_EN |
@@ -2780,7 +2769,7 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 
 		val = intel_de_read(dev_priv, MG_TX2_DCC(ln, tc_port));
 		val &= ~CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK;
-		if (link_clock <= 500000) {
+		if (crtc_state->port_clock <= 500000) {
 			val &= ~CFG_AMI_CK_DIV_OVERRIDE_EN;
 		} else {
 			val |= CFG_AMI_CK_DIV_OVERRIDE_EN |
@@ -2806,38 +2795,30 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 }
 
 static void icl_ddi_vswing_sequence(struct intel_encoder *encoder,
-				    int link_clock,
-				    u32 level,
-				    enum intel_output_type type)
+				    const struct intel_crtc_state *crtc_state,
+				    int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
 	if (intel_phy_is_combo(dev_priv, phy))
-		icl_combo_phy_ddi_vswing_sequence(encoder, level, type);
+		icl_combo_phy_ddi_vswing_sequence(encoder, crtc_state, level);
 	else
-		icl_mg_phy_ddi_vswing_sequence(encoder, link_clock, level,
-					       type);
+		icl_mg_phy_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
 static void
-tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, int link_clock,
-				u32 level, enum intel_output_type type)
+tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
+				const struct intel_crtc_state *crtc_state,
+				int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum tc_port tc_port = intel_port_to_tc(dev_priv, encoder->port);
 	const struct tgl_dkl_phy_ddi_buf_trans *ddi_translations;
-	u32 n_entries, val, ln, dpcnt_mask, dpcnt_val;
-	int rate = 0;
-
-	if (type != INTEL_OUTPUT_HDMI) {
-		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
-		rate = intel_dp->link_rate;
-	}
+	u32 val, dpcnt_mask, dpcnt_val;
+	int n_entries, ln;
 
-	ddi_translations = tgl_get_dkl_buf_trans(encoder, encoder->type, rate,
-						 &n_entries);
+	ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
 
 	if (level >= n_entries)
 		level = n_entries - 1;
@@ -2873,20 +2854,20 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, int link_clock,
 }
 
 static void tgl_ddi_vswing_sequence(struct intel_encoder *encoder,
-				    int link_clock,
-				    u32 level,
-				    enum intel_output_type type)
+				    const struct intel_crtc_state *crtc_state,
+				    int level)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
 	if (intel_phy_is_combo(dev_priv, phy))
-		icl_combo_phy_ddi_vswing_sequence(encoder, level, type);
+		icl_combo_phy_ddi_vswing_sequence(encoder, crtc_state, level);
 	else
-		tgl_dkl_phy_ddi_vswing_sequence(encoder, link_clock, level, type);
+		tgl_dkl_phy_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
-static u32 translate_signal_level(struct intel_dp *intel_dp, int signal_levels)
+static int translate_signal_level(struct intel_dp *intel_dp,
+				  u8 signal_levels)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	int i;
@@ -2903,55 +2884,58 @@ static u32 translate_signal_level(struct intel_dp *intel_dp, int signal_levels)
 	return 0;
 }
 
-static u32 intel_ddi_dp_level(struct intel_dp *intel_dp)
+static int intel_ddi_dp_level(struct intel_dp *intel_dp)
 {
 	u8 train_set = intel_dp->train_set[0];
-	int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
-					 DP_TRAIN_PRE_EMPHASIS_MASK);
+	u8 signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
+					DP_TRAIN_PRE_EMPHASIS_MASK);
 
 	return translate_signal_level(intel_dp, signal_levels);
 }
 
 static void
-tgl_set_signal_levels(struct intel_dp *intel_dp)
+tgl_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int level = intel_ddi_dp_level(intel_dp);
 
-	tgl_ddi_vswing_sequence(encoder, intel_dp->link_rate,
-				level, encoder->type);
+	tgl_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
 static void
-icl_set_signal_levels(struct intel_dp *intel_dp)
+icl_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int level = intel_ddi_dp_level(intel_dp);
 
-	icl_ddi_vswing_sequence(encoder, intel_dp->link_rate,
-				level, encoder->type);
+	icl_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
 static void
-cnl_set_signal_levels(struct intel_dp *intel_dp)
+cnl_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int level = intel_ddi_dp_level(intel_dp);
 
-	cnl_ddi_vswing_sequence(encoder, level, encoder->type);
+	cnl_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
 static void
-bxt_set_signal_levels(struct intel_dp *intel_dp)
+bxt_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int level = intel_ddi_dp_level(intel_dp);
 
-	bxt_ddi_vswing_sequence(encoder, level, encoder->type);
+	bxt_ddi_vswing_sequence(encoder, crtc_state, level);
 }
 
 static void
-hsw_set_signal_levels(struct intel_dp *intel_dp)
+hsw_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
@@ -2968,7 +2952,7 @@ hsw_set_signal_levels(struct intel_dp *intel_dp)
 	intel_dp->DP |= signal_levels;
 
 	if (IS_GEN9_BC(dev_priv))
-		skl_ddi_set_iboost(encoder, level, encoder->type);
+		skl_ddi_set_iboost(encoder, crtc_state, level);
 
 	intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
 	intel_de_posting_read(dev_priv, DDI_BUF_CTL(port));
@@ -3375,8 +3359,9 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	int level = intel_ddi_dp_level(intel_dp);
 	enum transcoder transcoder = crtc_state->cpu_transcoder;
 
-	intel_dp_set_link_params(intel_dp, crtc_state->port_clock,
-				 crtc_state->lane_count, is_mst);
+	intel_dp_set_link_params(intel_dp,
+				 crtc_state->port_clock,
+				 crtc_state->lane_count);
 
 	intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(transcoder);
 	intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(transcoder);
@@ -3448,8 +3433,7 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	 */
 
 	/* 7.e Configure voltage swing and related IO settings */
-	tgl_ddi_vswing_sequence(encoder, crtc_state->port_clock, level,
-				encoder->type);
+	tgl_ddi_vswing_sequence(encoder, crtc_state, level);
 
 	/*
 	 * 7.f Combo PHY: Configure PORT_CL_DW10 Static Power Down to power up
@@ -3472,7 +3456,7 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	 * We only configure what the register value will be here.  Actual
 	 * enabling happens during link training farther down.
 	 */
-	intel_ddi_init_dp_buf_reg(encoder);
+	intel_ddi_init_dp_buf_reg(encoder, crtc_state);
 
 	if (!is_mst)
 		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
@@ -3492,11 +3476,11 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	 *     Pattern, wait for 5 idle patterns (DP_TP_STATUS Min_Idles_Sent)
 	 *     (timeout after 800 us)
 	 */
-	intel_dp_start_link_train(intel_dp);
+	intel_dp_start_link_train(intel_dp, crtc_state);
 
 	/* 7.k Set DP_TP_CTL link training to Normal */
 	if (!is_trans_port_sync_mode(crtc_state))
-		intel_dp_stop_link_train(intel_dp);
+		intel_dp_stop_link_train(intel_dp, crtc_state);
 
 	/* 7.l Configure and enable FEC if needed */
 	intel_ddi_enable_fec(encoder, crtc_state);
@@ -3522,8 +3506,9 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	else
 		drm_WARN_ON(&dev_priv->drm, is_mst && port == PORT_A);
 
-	intel_dp_set_link_params(intel_dp, crtc_state->port_clock,
-				 crtc_state->lane_count, is_mst);
+	intel_dp_set_link_params(intel_dp,
+				 crtc_state->port_clock,
+				 crtc_state->lane_count);
 
 	intel_edp_panel_on(intel_dp);
 
@@ -3537,12 +3522,11 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	icl_program_mg_dp_mode(dig_port, crtc_state);
 
 	if (INTEL_GEN(dev_priv) >= 11)
-		icl_ddi_vswing_sequence(encoder, crtc_state->port_clock,
-					level, encoder->type);
+		icl_ddi_vswing_sequence(encoder, crtc_state, level);
 	else if (IS_CANNONLAKE(dev_priv))
-		cnl_ddi_vswing_sequence(encoder, level, encoder->type);
+		cnl_ddi_vswing_sequence(encoder, crtc_state, level);
 	else if (IS_GEN9_LP(dev_priv))
-		bxt_ddi_vswing_sequence(encoder, level, encoder->type);
+		bxt_ddi_vswing_sequence(encoder, crtc_state, level);
 	else
 		intel_prepare_dp_ddi_buffers(encoder, crtc_state);
 
@@ -3555,17 +3539,17 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 					       lane_reversal);
 	}
 
-	intel_ddi_init_dp_buf_reg(encoder);
+	intel_ddi_init_dp_buf_reg(encoder, crtc_state);
 	if (!is_mst)
 		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 	intel_dp_configure_protocol_converter(intel_dp);
 	intel_dp_sink_set_decompression_state(intel_dp, crtc_state,
 					      true);
 	intel_dp_sink_set_fec_ready(intel_dp, crtc_state);
-	intel_dp_start_link_train(intel_dp);
+	intel_dp_start_link_train(intel_dp, crtc_state);
 	if ((port != PORT_A || INTEL_GEN(dev_priv) >= 9) &&
 	    !is_trans_port_sync_mode(crtc_state))
-		intel_dp_stop_link_train(intel_dp);
+		intel_dp_stop_link_train(intel_dp, crtc_state);
 
 	intel_ddi_enable_fec(encoder, crtc_state);
 
@@ -3605,7 +3589,7 @@ static void intel_ddi_pre_enable_hdmi(struct intel_atomic_state *state,
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
 	struct intel_hdmi *intel_hdmi = &dig_port->hdmi;
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	int level = intel_ddi_hdmi_level(encoder);
+	int level = intel_ddi_hdmi_level(encoder, crtc_state);
 
 	intel_dp_dual_mode_set_tmds_output(intel_hdmi, true);
 	intel_ddi_clk_select(encoder, crtc_state);
@@ -3615,20 +3599,18 @@ static void intel_ddi_pre_enable_hdmi(struct intel_atomic_state *state,
 	icl_program_mg_dp_mode(dig_port, crtc_state);
 
 	if (INTEL_GEN(dev_priv) >= 12)
-		tgl_ddi_vswing_sequence(encoder, crtc_state->port_clock,
-					level, INTEL_OUTPUT_HDMI);
+		tgl_ddi_vswing_sequence(encoder, crtc_state, level);
 	else if (INTEL_GEN(dev_priv) == 11)
-		icl_ddi_vswing_sequence(encoder, crtc_state->port_clock,
-					level, INTEL_OUTPUT_HDMI);
+		icl_ddi_vswing_sequence(encoder, crtc_state, level);
 	else if (IS_CANNONLAKE(dev_priv))
-		cnl_ddi_vswing_sequence(encoder, level, INTEL_OUTPUT_HDMI);
+		cnl_ddi_vswing_sequence(encoder, crtc_state, level);
 	else if (IS_GEN9_LP(dev_priv))
-		bxt_ddi_vswing_sequence(encoder, level, INTEL_OUTPUT_HDMI);
+		bxt_ddi_vswing_sequence(encoder, crtc_state, level);
 	else
 		intel_prepare_hdmi_ddi_buffers(encoder, level);
 
 	if (IS_GEN9_BC(dev_priv))
-		skl_ddi_set_iboost(encoder, level, INTEL_OUTPUT_HDMI);
+		skl_ddi_set_iboost(encoder, crtc_state, level);
 
 	intel_ddi_enable_pipe_clock(encoder, crtc_state);
 
@@ -3918,12 +3900,14 @@ static void trans_port_sync_stop_link_train(struct intel_atomic_state *state,
 		    crtc_state->cpu_transcoder)
 			continue;
 
-		intel_dp_stop_link_train(enc_to_intel_dp(slave_encoder));
+		intel_dp_stop_link_train(enc_to_intel_dp(slave_encoder),
+					 slave_crtc_state);
 	}
 
 	usleep_range(200, 400);
 
-	intel_dp_stop_link_train(enc_to_intel_dp(encoder));
+	intel_dp_stop_link_train(enc_to_intel_dp(encoder),
+				 crtc_state);
 }
 
 static void intel_enable_ddi_dp(struct intel_atomic_state *state,
@@ -3936,7 +3920,7 @@ static void intel_enable_ddi_dp(struct intel_atomic_state *state,
 	enum port port = encoder->port;
 
 	if (port == PORT_A && INTEL_GEN(dev_priv) < 9)
-		intel_dp_stop_link_train(intel_dp);
+		intel_dp_stop_link_train(intel_dp, crtc_state);
 
 	intel_edp_backlight_on(crtc_state, conn_state);
 	intel_psr_enable(intel_dp, crtc_state, conn_state);
@@ -4197,7 +4181,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
 						crtc_state->lane_lat_optim_mask);
 }
 
-static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
+static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp,
+					   const struct intel_crtc_state *crtc_state)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
@@ -4225,9 +4210,9 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
 	}
 
 	dp_tp_ctl = DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1;
-	if (intel_dp->link_mst)
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
 		dp_tp_ctl |= DP_TP_CTL_MODE_MST;
-	else {
+	} else {
 		dp_tp_ctl |= DP_TP_CTL_MODE_SST;
 		if (drm_dp_enhanced_frame_cap(intel_dp->dpcd))
 			dp_tp_ctl |= DP_TP_CTL_ENHANCED_FRAME_ENABLE;
@@ -4243,6 +4228,7 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
 }
 
 static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
+				     const struct intel_crtc_state *crtc_state,
 				     u8 dp_train_pat)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -4273,7 +4259,8 @@ static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
 	intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, temp);
 }
 
-static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp)
+static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp,
+					  const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);

drivers/gpu/drm/i915/display/intel_ddi.h

@@ -41,8 +41,10 @@ void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
 				    bool state);
 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
 					 struct intel_crtc_state *crtc_state);
-u32 bxt_signal_levels(struct intel_dp *intel_dp);
-u32 ddi_signal_levels(struct intel_dp *intel_dp);
+u32 bxt_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state);
+u32 ddi_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state);
 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
 				     enum transcoder cpu_transcoder,
 				     bool enable);

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -1273,7 +1273,6 @@ struct intel_dp {
 	int link_rate;
 	u8 lane_count;
 	u8 sink_count;
-	bool link_mst;
 	bool link_trained;
 	bool has_hdmi_sink;
 	bool has_audio;
@@ -1366,13 +1365,19 @@ struct intel_dp {
 	i915_reg_t (*aux_ch_data_reg)(struct intel_dp *dp, int index);
 
 	/* This is called before a link training is starterd */
-	void (*prepare_link_retrain)(struct intel_dp *intel_dp);
-	void (*set_link_train)(struct intel_dp *intel_dp, u8 dp_train_pat);
-	void (*set_idle_link_train)(struct intel_dp *intel_dp);
-	void (*set_signal_levels)(struct intel_dp *intel_dp);
+	void (*prepare_link_retrain)(struct intel_dp *intel_dp,
+				     const struct intel_crtc_state *crtc_state);
+	void (*set_link_train)(struct intel_dp *intel_dp,
+			       const struct intel_crtc_state *crtc_state,
+			       u8 dp_train_pat);
+	void (*set_idle_link_train)(struct intel_dp *intel_dp,
+				    const struct intel_crtc_state *crtc_state);
+	void (*set_signal_levels)(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state);
 
 	u8 (*preemph_max)(struct intel_dp *intel_dp);
-	u8 (*voltage_max)(struct intel_dp *intel_dp);
+	u8 (*voltage_max)(struct intel_dp *intel_dp,
+			  const struct intel_crtc_state *crtc_state);
 
 	/* Displayport compliance testing */
 	struct intel_dp_compliance compliance;

drivers/gpu/drm/i915/display/intel_dp.c

@@ -2799,13 +2799,11 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 }
 
 void intel_dp_set_link_params(struct intel_dp *intel_dp,
-			      int link_rate, u8 lane_count,
-			      bool link_mst)
+			      int link_rate, int lane_count)
 {
 	intel_dp->link_trained = false;
 	intel_dp->link_rate = link_rate;
 	intel_dp->lane_count = lane_count;
-	intel_dp->link_mst = link_mst;
 }
 
 static void intel_dp_prepare(struct intel_encoder *encoder,
@@ -2817,10 +2815,9 @@ static void intel_dp_prepare(struct intel_encoder *encoder,
 	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
 	const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
 
-	intel_dp_set_link_params(intel_dp, pipe_config->port_clock,
-				 pipe_config->lane_count,
-				 intel_crtc_has_type(pipe_config,
-						     INTEL_OUTPUT_DP_MST));
+	intel_dp_set_link_params(intel_dp,
+				 pipe_config->port_clock,
+				 pipe_config->lane_count);
 
 	/*
 	 * There are four kinds of DP registers:
@@ -3791,6 +3788,7 @@ static void chv_post_disable_dp(struct intel_atomic_state *state,
 
 static void
 cpt_set_link_train(struct intel_dp *intel_dp,
+		   const struct intel_crtc_state *crtc_state,
 		   u8 dp_train_pat)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -3821,6 +3819,7 @@ cpt_set_link_train(struct intel_dp *intel_dp,
 
 static void
 g4x_set_link_train(struct intel_dp *intel_dp,
+		   const struct intel_crtc_state *crtc_state,
 		   u8 dp_train_pat)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -3856,7 +3855,8 @@ static void intel_dp_enable_port(struct intel_dp *intel_dp,
 
 	/* enable with pattern 1 (as per spec) */
 
-	intel_dp_program_link_training_pattern(intel_dp, DP_TRAINING_PATTERN_1);
+	intel_dp_program_link_training_pattern(intel_dp, crtc_state,
+					       DP_TRAINING_PATTERN_1);
 
 	/*
 	 * Magic for VLV/CHV. We _must_ first set up the register
@@ -3947,8 +3947,8 @@ static void intel_enable_dp(struct intel_atomic_state *state,
 
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 	intel_dp_configure_protocol_converter(intel_dp);
-	intel_dp_start_link_train(intel_dp);
-	intel_dp_stop_link_train(intel_dp);
+	intel_dp_start_link_train(intel_dp, pipe_config);
+	intel_dp_stop_link_train(intel_dp, pipe_config);
 
 	if (pipe_config->has_audio) {
 		drm_dbg(&dev_priv->drm, "Enabling DP audio on pipe %c\n",
@@ -4157,12 +4157,14 @@ intel_dp_get_link_status(struct intel_dp *intel_dp, u8 link_status[DP_LINK_STATU
 				DP_LINK_STATUS_SIZE) == DP_LINK_STATUS_SIZE;
 }
 
-static u8 intel_dp_voltage_max_2(struct intel_dp *intel_dp)
+static u8 intel_dp_voltage_max_2(struct intel_dp *intel_dp,
+				 const struct intel_crtc_state *crtc_state)
 {
 	return DP_TRAIN_VOLTAGE_SWING_LEVEL_2;
 }
 
-static u8 intel_dp_voltage_max_3(struct intel_dp *intel_dp)
+static u8 intel_dp_voltage_max_3(struct intel_dp *intel_dp,
+				 const struct intel_crtc_state *crtc_state)
 {
 	return DP_TRAIN_VOLTAGE_SWING_LEVEL_3;
 }
@@ -4177,7 +4179,8 @@ static u8 intel_dp_preemph_max_3(struct intel_dp *intel_dp)
 	return DP_TRAIN_PRE_EMPH_LEVEL_3;
 }
 
-static void vlv_set_signal_levels(struct intel_dp *intel_dp)
+static void vlv_set_signal_levels(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	unsigned long demph_reg_value, preemph_reg_value,
@@ -4257,11 +4260,13 @@ static void vlv_set_signal_levels(struct intel_dp *intel_dp)
 		return;
 	}
 
-	vlv_set_phy_signal_level(encoder, demph_reg_value, preemph_reg_value,
+	vlv_set_phy_signal_level(encoder, crtc_state,
+				 demph_reg_value, preemph_reg_value,
 				 uniqtranscale_reg_value, 0);
 }
 
-static void chv_set_signal_levels(struct intel_dp *intel_dp)
+static void chv_set_signal_levels(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	u32 deemph_reg_value, margin_reg_value;
@@ -4338,8 +4343,9 @@ static void chv_set_signal_levels(struct intel_dp *intel_dp)
 		return;
 	}
 
-	chv_set_phy_signal_level(encoder, deemph_reg_value,
-				 margin_reg_value, uniq_trans_scale);
+	chv_set_phy_signal_level(encoder, crtc_state,
+				 deemph_reg_value, margin_reg_value,
+				 uniq_trans_scale);
 }
 
 static u32 g4x_signal_levels(u8 train_set)
@@ -4380,7 +4386,8 @@ static u32 g4x_signal_levels(u8 train_set)
 }
 
 static void
-g4x_set_signal_levels(struct intel_dp *intel_dp)
+g4x_set_signal_levels(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	u8 train_set = intel_dp->train_set[0];
@@ -4427,7 +4434,8 @@ static u32 snb_cpu_edp_signal_levels(u8 train_set)
 }
 
 static void
-snb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp)
+snb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp,
+			      const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	u8 train_set = intel_dp->train_set[0];
@@ -4478,7 +4486,8 @@ static u32 ivb_cpu_edp_signal_levels(u8 train_set)
 }
 
 static void
-ivb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp)
+ivb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp,
+			      const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	u8 train_set = intel_dp->train_set[0];
@@ -4496,7 +4505,8 @@ ivb_cpu_edp_set_signal_levels(struct intel_dp *intel_dp)
 	intel_de_posting_read(dev_priv, intel_dp->output_reg);
 }
 
-void intel_dp_set_signal_levels(struct intel_dp *intel_dp)
+void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
+				const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	u8 train_set = intel_dp->train_set[0];
@@ -4510,11 +4520,12 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp)
 		    train_set & DP_TRAIN_MAX_PRE_EMPHASIS_REACHED ?
 		    " (max)" : "");
 
-	intel_dp->set_signal_levels(intel_dp);
+	intel_dp->set_signal_levels(intel_dp, crtc_state);
 }
 
 void
 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
+				       const struct intel_crtc_state *crtc_state,
 				       u8 dp_train_pat)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -4525,13 +4536,14 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
 			    "Using DP training pattern TPS%d\n",
 			    dp_train_pat & train_pat_mask);
 
-	intel_dp->set_link_train(intel_dp, dp_train_pat);
+	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
 }
 
-void intel_dp_set_idle_link_train(struct intel_dp *intel_dp)
+void intel_dp_set_idle_link_train(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state)
 {
 	if (intel_dp->set_idle_link_train)
-		intel_dp->set_idle_link_train(intel_dp);
+		intel_dp->set_idle_link_train(intel_dp, crtc_state);
 }
 
 static void
@@ -5424,14 +5436,14 @@ static u8 intel_dp_autotest_edid(struct intel_dp *intel_dp)
 	return test_result;
 }
 
-static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp)
+static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp,
+					const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv =
 			to_i915(dp_to_dig_port(intel_dp)->base.base.dev);
-	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_dp_phy_test_params *data =
 			&intel_dp->compliance.test_data.phytest;
-	struct intel_crtc *crtc = to_intel_crtc(dig_port->base.base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	enum pipe pipe = crtc->pipe;
 	u32 pattern_val;
 
@@ -5491,7 +5503,8 @@ static void intel_dp_phy_pattern_update(struct intel_dp *intel_dp)
 }
 
 static void
-intel_dp_autotest_phy_ddi_disable(struct intel_dp *intel_dp)
+intel_dp_autotest_phy_ddi_disable(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_device *dev = dig_port->base.base.dev;
@@ -5517,7 +5530,8 @@ intel_dp_autotest_phy_ddi_disable(struct intel_dp *intel_dp)
 }
 
 static void
-intel_dp_autotest_phy_ddi_enable(struct intel_dp *intel_dp, uint8_t lane_cnt)
+intel_dp_autotest_phy_ddi_enable(struct intel_dp *intel_dp,
+				 const struct intel_crtc_state *crtc_state)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_device *dev = dig_port->base.base.dev;
@@ -5543,7 +5557,8 @@ intel_dp_autotest_phy_ddi_enable(struct intel_dp *intel_dp, uint8_t lane_cnt)
 		       trans_ddi_func_ctl_value);
 }
 
-static void intel_dp_process_phy_request(struct intel_dp *intel_dp)
+static void intel_dp_process_phy_request(struct intel_dp *intel_dp,
+					 const struct intel_crtc_state *crtc_state)
 {
 	struct drm_dp_phy_test_params *data =
 		&intel_dp->compliance.test_data.phytest;
@@ -5555,15 +5570,15 @@ static void intel_dp_process_phy_request(struct intel_dp *intel_dp)
 	}
 
 	/* retrieve vswing & pre-emphasis setting */
-	intel_dp_get_adjust_train(intel_dp, link_status);
+	intel_dp_get_adjust_train(intel_dp, crtc_state, link_status);
 
-	intel_dp_autotest_phy_ddi_disable(intel_dp);
+	intel_dp_autotest_phy_ddi_disable(intel_dp, crtc_state);
 
-	intel_dp_set_signal_levels(intel_dp);
+	intel_dp_set_signal_levels(intel_dp, crtc_state);
 
-	intel_dp_phy_pattern_update(intel_dp);
+	intel_dp_phy_pattern_update(intel_dp, crtc_state);
 
-	intel_dp_autotest_phy_ddi_enable(intel_dp, data->num_lanes);
+	intel_dp_autotest_phy_ddi_enable(intel_dp, crtc_state);
 
 	drm_dp_set_phy_test_pattern(&intel_dp->aux, data,
 				    link_status[DP_DPCD_REV]);
@@ -5719,6 +5734,10 @@ intel_dp_needs_link_retrain(struct intel_dp *intel_dp)
 	/*
 	 * Validate the cached values of intel_dp->link_rate and
 	 * intel_dp->lane_count before attempting to retrain.
+	 *
+	 * FIXME would be nice to user the crtc state here, but since
+	 * we need to call this from the short HPD handler that seems
+	 * a bit hard.
 	 */
 	if (!intel_dp_link_params_valid(intel_dp, intel_dp->link_rate,
 					intel_dp->lane_count))
@@ -5852,8 +5871,20 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
 							      intel_crtc_pch_transcoder(crtc), false);
 	}
 
-	intel_dp_start_link_train(intel_dp);
-	intel_dp_stop_link_train(intel_dp);
+	for_each_intel_crtc_mask(&dev_priv->drm, crtc, crtc_mask) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		/* retrain on the MST master transcoder */
+		if (INTEL_GEN(dev_priv) >= 12 &&
+		    intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST) &&
+		    !intel_dp_mst_is_master_trans(crtc_state))
+			continue;
+
+		intel_dp_start_link_train(intel_dp, crtc_state);
+		intel_dp_stop_link_train(intel_dp, crtc_state);
+		break;
+	}
 
 	for_each_intel_crtc_mask(&dev_priv->drm, crtc, crtc_mask) {
 		const struct intel_crtc_state *crtc_state =
@@ -5923,6 +5954,7 @@ static int intel_dp_do_phy_test(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	struct intel_crtc *crtc;
 	u32 crtc_mask;
 	int ret;
 
@@ -5940,7 +5972,20 @@ static int intel_dp_do_phy_test(struct intel_encoder *encoder,
 
 	drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] PHY test\n",
 		    encoder->base.base.id, encoder->base.name);
-	intel_dp_process_phy_request(intel_dp);
+
+	for_each_intel_crtc_mask(&dev_priv->drm, crtc, crtc_mask) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		/* test on the MST master transcoder */
+		if (INTEL_GEN(dev_priv) >= 12 &&
+		    intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST) &&
+		    !intel_dp_mst_is_master_trans(crtc_state))
+			continue;
+
+		intel_dp_process_phy_request(intel_dp, crtc_state);
+		break;
+	}
 
 	return 0;
 }

drivers/gpu/drm/i915/display/intel_dp.h

@@ -45,8 +45,7 @@ bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
 bool intel_dp_init_connector(struct intel_digital_port *dig_port,
 			     struct intel_connector *intel_connector);
 void intel_dp_set_link_params(struct intel_dp *intel_dp,
-			      int link_rate, u8 lane_count,
-			      bool link_mst);
+			      int link_rate, int lane_count);
 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 					    int link_rate, u8 lane_count);
 int intel_dp_retrain_link(struct intel_encoder *encoder,
@@ -93,10 +92,13 @@ void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
 
 void
 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
+				       const struct intel_crtc_state *crtc_state,
 				       u8 dp_train_pat);
 void
-intel_dp_set_signal_levels(struct intel_dp *intel_dp);
-void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
+intel_dp_set_signal_levels(struct intel_dp *intel_dp,
+			   const struct intel_crtc_state *crtc_state);
+void intel_dp_set_idle_link_train(struct intel_dp *intel_dp,
+				  const struct intel_crtc_state *crtc_state);
 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
 			   u8 *link_bw, u8 *rate_select);
 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);

drivers/gpu/drm/i915/display/intel_dp_link_training.c

@@ -49,8 +49,10 @@ static u8 dp_voltage_max(u8 preemph)
 	}
 }
 
-void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
-			       const u8 link_status[DP_LINK_STATUS_SIZE])
+void
+intel_dp_get_adjust_train(struct intel_dp *intel_dp,
+			  const struct intel_crtc_state *crtc_state,
+			  const u8 link_status[DP_LINK_STATUS_SIZE])
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	u8 v = 0;
@@ -59,7 +61,7 @@ void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
 	u8 voltage_max;
 	u8 preemph_max;
 
-	for (lane = 0; lane < intel_dp->lane_count; lane++) {
+	for (lane = 0; lane < crtc_state->lane_count; lane++) {
 		v = max(v, drm_dp_get_adjust_request_voltage(link_status, lane));
 		p = max(p, drm_dp_get_adjust_request_pre_emphasis(link_status, lane));
 	}
@@ -74,7 +76,7 @@ void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
 
 	v = min(v, dp_voltage_max(p));
 
-	voltage_max = intel_dp->voltage_max(intel_dp);
+	voltage_max = intel_dp->voltage_max(intel_dp, crtc_state);
 	drm_WARN_ON_ONCE(&i915->drm,
 			 voltage_max != DP_TRAIN_VOLTAGE_SWING_LEVEL_2 &&
 			 voltage_max != DP_TRAIN_VOLTAGE_SWING_LEVEL_3);
@@ -88,12 +90,14 @@ void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
 
 static bool
 intel_dp_set_link_train(struct intel_dp *intel_dp,
+			const struct intel_crtc_state *crtc_state,
 			u8 dp_train_pat)
 {
 	u8 buf[sizeof(intel_dp->train_set) + 1];
 	int ret, len;
 
-	intel_dp_program_link_training_pattern(intel_dp, dp_train_pat);
+	intel_dp_program_link_training_pattern(intel_dp, crtc_state,
+					       dp_train_pat);
 
 	buf[0] = dp_train_pat;
 	if ((dp_train_pat & DP_TRAINING_PATTERN_MASK) ==
@@ -102,8 +106,8 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
 		len = 1;
 	} else {
 		/* DP_TRAINING_LANEx_SET follow DP_TRAINING_PATTERN_SET */
-		memcpy(buf + 1, intel_dp->train_set, intel_dp->lane_count);
-		len = intel_dp->lane_count + 1;
+		memcpy(buf + 1, intel_dp->train_set, crtc_state->lane_count);
+		len = crtc_state->lane_count + 1;
 	}
 
 	ret = drm_dp_dpcd_write(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
@@ -114,31 +118,34 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
 
 static bool
 intel_dp_reset_link_train(struct intel_dp *intel_dp,
-			u8 dp_train_pat)
+			  const struct intel_crtc_state *crtc_state,
+			  u8 dp_train_pat)
 {
 	memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set));
-	intel_dp_set_signal_levels(intel_dp);
-	return intel_dp_set_link_train(intel_dp, dp_train_pat);
+	intel_dp_set_signal_levels(intel_dp, crtc_state);
+	return intel_dp_set_link_train(intel_dp, crtc_state, dp_train_pat);
 }
 
 static bool
-intel_dp_update_link_train(struct intel_dp *intel_dp)
+intel_dp_update_link_train(struct intel_dp *intel_dp,
+			   const struct intel_crtc_state *crtc_state)
 {
 	int ret;
 
-	intel_dp_set_signal_levels(intel_dp);
+	intel_dp_set_signal_levels(intel_dp, crtc_state);
 
 	ret = drm_dp_dpcd_write(&intel_dp->aux, DP_TRAINING_LANE0_SET,
-				intel_dp->train_set, intel_dp->lane_count);
+				intel_dp->train_set, crtc_state->lane_count);
 
-	return ret == intel_dp->lane_count;
+	return ret == crtc_state->lane_count;
 }
 
-static bool intel_dp_link_max_vswing_reached(struct intel_dp *intel_dp)
+static bool intel_dp_link_max_vswing_reached(struct intel_dp *intel_dp,
+					     const struct intel_crtc_state *crtc_state)
 {
 	int lane;
 
-	for (lane = 0; lane < intel_dp->lane_count; lane++)
+	for (lane = 0; lane < crtc_state->lane_count; lane++)
 		if ((intel_dp->train_set[lane] &
 		     DP_TRAIN_MAX_SWING_REACHED) == 0)
 			return false;
@@ -148,7 +155,8 @@ static bool intel_dp_link_max_vswing_reached(struct intel_dp *intel_dp)
 
 /* Enable corresponding port and start training pattern 1 */
 static bool
-intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
+intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
+				      const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	u8 voltage;
@@ -158,9 +166,9 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 	u8 link_bw, rate_select;
 
 	if (intel_dp->prepare_link_retrain)
-		intel_dp->prepare_link_retrain(intel_dp);
+		intel_dp->prepare_link_retrain(intel_dp, crtc_state);
 
-	intel_dp_compute_rate(intel_dp, intel_dp->link_rate,
+	intel_dp_compute_rate(intel_dp, crtc_state->port_clock,
 			      &link_bw, &rate_select);
 
 	if (link_bw)
@@ -172,7 +180,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 
 	/* Write the link configuration data */
 	link_config[0] = link_bw;
-	link_config[1] = intel_dp->lane_count;
+	link_config[1] = crtc_state->lane_count;
 	if (drm_dp_enhanced_frame_cap(intel_dp->dpcd))
 		link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
 	drm_dp_dpcd_write(&intel_dp->aux, DP_LINK_BW_SET, link_config, 2);
@@ -189,7 +197,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 	intel_dp->DP |= DP_PORT_EN;
 
 	/* clock recovery */
-	if (!intel_dp_reset_link_train(intel_dp,
+	if (!intel_dp_reset_link_train(intel_dp, crtc_state,
 				       DP_TRAINING_PATTERN_1 |
 				       DP_LINK_SCRAMBLING_DISABLE)) {
 		drm_err(&i915->drm, "failed to enable link training\n");
@@ -220,7 +228,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 			return false;
 		}
 
-		if (drm_dp_clock_recovery_ok(link_status, intel_dp->lane_count)) {
+		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
 			drm_dbg_kms(&i915->drm, "clock recovery OK\n");
 			return true;
 		}
@@ -239,8 +247,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 		voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
 
 		/* Update training set as requested by target */
-		intel_dp_get_adjust_train(intel_dp, link_status);
-		if (!intel_dp_update_link_train(intel_dp)) {
+		intel_dp_get_adjust_train(intel_dp, crtc_state, link_status);
+		if (!intel_dp_update_link_train(intel_dp, crtc_state)) {
 			drm_err(&i915->drm,
 				"failed to update link training\n");
 			return false;
@@ -252,7 +260,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 		else
 			voltage_tries = 1;
 
-		if (intel_dp_link_max_vswing_reached(intel_dp))
+		if (intel_dp_link_max_vswing_reached(intel_dp, crtc_state))
 			max_vswing_reached = true;
 
 	}
@@ -266,7 +274,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
  * or for 1.4 devices that support it, training Pattern 3 for HBR2
  * or 1.2 devices that support it, Training Pattern 2 otherwise.
  */
-static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
+static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
+				     const struct intel_crtc_state *crtc_state)
 {
 	bool source_tps3, sink_tps3, source_tps4, sink_tps4;
 
@@ -280,7 +289,7 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
 	sink_tps4 = drm_dp_tps4_supported(intel_dp->dpcd);
 	if (source_tps4 && sink_tps4) {
 		return DP_TRAINING_PATTERN_4;
-	} else if (intel_dp->link_rate == 810000) {
+	} else if (crtc_state->port_clock == 810000) {
 		if (!source_tps4)
 			drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 				    "8.1 Gbps link rate without source HBR3/TPS4 support\n");
@@ -297,7 +306,7 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
 	sink_tps3 = drm_dp_tps3_supported(intel_dp->dpcd);
 	if (source_tps3 && sink_tps3) {
 		return  DP_TRAINING_PATTERN_3;
-	} else if (intel_dp->link_rate >= 540000) {
+	} else if (crtc_state->port_clock >= 540000) {
 		if (!source_tps3)
 			drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 				    ">=5.4/6.48 Gbps link rate without source HBR2/TPS3 support\n");
@@ -310,7 +319,8 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
 }
 
 static bool
-intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
+intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
+					    const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	int tries;
@@ -318,13 +328,13 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	bool channel_eq = false;
 
-	training_pattern = intel_dp_training_pattern(intel_dp);
+	training_pattern = intel_dp_training_pattern(intel_dp, crtc_state);
 	/* Scrambling is disabled for TPS2/3 and enabled for TPS4 */
 	if (training_pattern != DP_TRAINING_PATTERN_4)
 		training_pattern |= DP_LINK_SCRAMBLING_DISABLE;
 
 	/* channel equalization */
-	if (!intel_dp_set_link_train(intel_dp,
+	if (!intel_dp_set_link_train(intel_dp, crtc_state,
 				     training_pattern)) {
 		drm_err(&i915->drm, "failed to start channel equalization\n");
 		return false;
@@ -341,7 +351,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 
 		/* Make sure clock is still ok */
 		if (!drm_dp_clock_recovery_ok(link_status,
-					      intel_dp->lane_count)) {
+					      crtc_state->lane_count)) {
 			intel_dp_dump_link_status(link_status);
 			drm_dbg_kms(&i915->drm,
 				    "Clock recovery check failed, cannot "
@@ -350,7 +360,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 		}
 
 		if (drm_dp_channel_eq_ok(link_status,
-					 intel_dp->lane_count)) {
+					 crtc_state->lane_count)) {
 			channel_eq = true;
 			drm_dbg_kms(&i915->drm, "Channel EQ done. DP Training "
 				    "successful\n");
@@ -358,8 +368,8 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 		}
 
 		/* Update training set as requested by target */
-		intel_dp_get_adjust_train(intel_dp, link_status);
-		if (!intel_dp_update_link_train(intel_dp)) {
+		intel_dp_get_adjust_train(intel_dp, crtc_state, link_status);
+		if (!intel_dp_update_link_train(intel_dp, crtc_state)) {
 			drm_err(&i915->drm,
 				"failed to update link training\n");
 			break;
@@ -373,35 +383,37 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 			    "Channel equalization failed 5 times\n");
 	}
 
-	intel_dp_set_idle_link_train(intel_dp);
+	intel_dp_set_idle_link_train(intel_dp, crtc_state);
 
 	return channel_eq;
 
 }
 
-void intel_dp_stop_link_train(struct intel_dp *intel_dp)
+void intel_dp_stop_link_train(struct intel_dp *intel_dp,
+			      const struct intel_crtc_state *crtc_state)
 {
 	intel_dp->link_trained = true;
 
-	intel_dp_set_link_train(intel_dp,
+	intel_dp_set_link_train(intel_dp, crtc_state,
 				DP_TRAINING_PATTERN_DISABLE);
 }
 
 void
-intel_dp_start_link_train(struct intel_dp *intel_dp)
+intel_dp_start_link_train(struct intel_dp *intel_dp,
+			  const struct intel_crtc_state *crtc_state)
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
 
-	if (!intel_dp_link_training_clock_recovery(intel_dp))
+	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state))
 		goto failure_handling;
-	if (!intel_dp_link_training_channel_equalization(intel_dp))
+	if (!intel_dp_link_training_channel_equalization(intel_dp, crtc_state))
 		goto failure_handling;
 
 	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 		    "[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
 		    intel_connector->base.base.id,
 		    intel_connector->base.name,
-		    intel_dp->link_rate, intel_dp->lane_count);
+		    crtc_state->port_clock, crtc_state->lane_count);
 	return;
 
  failure_handling:
@@ -409,15 +421,15 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
 		    "[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
 		    intel_connector->base.base.id,
 		    intel_connector->base.name,
-		    intel_dp->link_rate, intel_dp->lane_count);
+		    crtc_state->port_clock, crtc_state->lane_count);
 
 	if (intel_dp->hobl_active) {
 		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 			    "Link Training failed with HOBL active, not enabling it from now on");
 		intel_dp->hobl_failed = true;
 	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
-							   intel_dp->link_rate,
-							   intel_dp->lane_count)) {
+							   crtc_state->port_clock,
+							   crtc_state->lane_count)) {
 		return;
 	}
 

drivers/gpu/drm/i915/display/intel_dp_link_training.h

@@ -8,11 +8,15 @@
 
 #include <drm/drm_dp_helper.h>
 
+struct intel_crtc_state;
 struct intel_dp;
 
 void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
+			       const struct intel_crtc_state *crtc_state,
 			       const u8 link_status[DP_LINK_STATUS_SIZE]);
-void intel_dp_start_link_train(struct intel_dp *intel_dp);
-void intel_dp_stop_link_train(struct intel_dp *intel_dp);
+void intel_dp_start_link_train(struct intel_dp *intel_dp,
+			       const struct intel_crtc_state *crtc_state);
+void intel_dp_stop_link_train(struct intel_dp *intel_dp,
+			      const struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_DP_LINK_TRAINING_H__ */

drivers/gpu/drm/i915/display/intel_dpio_phy.c

@@ -644,16 +644,16 @@ bxt_ddi_phy_get_lane_lat_optim_mask(struct intel_encoder *encoder)
 	return mask;
 }
 
-
 void chv_set_phy_signal_level(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state,
 			      u32 deemph_reg_value, u32 margin_reg_value,
 			      bool uniq_trans_scale)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	enum dpio_channel ch = vlv_dig_port_to_channel(dig_port);
-	enum pipe pipe = intel_crtc->pipe;
+	enum pipe pipe = crtc->pipe;
 	u32 val;
 	int i;
 
@@ -666,7 +666,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	val |= DPIO_PCS_TX1DEEMP_9P5 | DPIO_PCS_TX2DEEMP_9P5;
 	vlv_dpio_write(dev_priv, pipe, VLV_PCS01_DW10(ch), val);
 
-	if (intel_crtc->config->lane_count > 2) {
+	if (crtc_state->lane_count > 2) {
 		val = vlv_dpio_read(dev_priv, pipe, VLV_PCS23_DW10(ch));
 		val &= ~(DPIO_PCS_SWING_CALC_TX0_TX2 | DPIO_PCS_SWING_CALC_TX1_TX3);
 		val &= ~(DPIO_PCS_TX1DEEMP_MASK | DPIO_PCS_TX2DEEMP_MASK);
@@ -679,7 +679,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	val |= DPIO_PCS_TX1MARGIN_000 | DPIO_PCS_TX2MARGIN_000;
 	vlv_dpio_write(dev_priv, pipe, VLV_PCS01_DW9(ch), val);
 
-	if (intel_crtc->config->lane_count > 2) {
+	if (crtc_state->lane_count > 2) {
 		val = vlv_dpio_read(dev_priv, pipe, VLV_PCS23_DW9(ch));
 		val &= ~(DPIO_PCS_TX1MARGIN_MASK | DPIO_PCS_TX2MARGIN_MASK);
 		val |= DPIO_PCS_TX1MARGIN_000 | DPIO_PCS_TX2MARGIN_000;
@@ -687,7 +687,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	}
 
 	/* Program swing deemph */
-	for (i = 0; i < intel_crtc->config->lane_count; i++) {
+	for (i = 0; i < crtc_state->lane_count; i++) {
 		val = vlv_dpio_read(dev_priv, pipe, CHV_TX_DW4(ch, i));
 		val &= ~DPIO_SWING_DEEMPH9P5_MASK;
 		val |= deemph_reg_value << DPIO_SWING_DEEMPH9P5_SHIFT;
@@ -695,7 +695,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	}
 
 	/* Program swing margin */
-	for (i = 0; i < intel_crtc->config->lane_count; i++) {
+	for (i = 0; i < crtc_state->lane_count; i++) {
 		val = vlv_dpio_read(dev_priv, pipe, CHV_TX_DW2(ch, i));
 
 		val &= ~DPIO_SWING_MARGIN000_MASK;
@@ -718,7 +718,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	 * For now, for this unique transition scale selection, set bit
 	 * 27 for ch0 and ch1.
 	 */
-	for (i = 0; i < intel_crtc->config->lane_count; i++) {
+	for (i = 0; i < crtc_state->lane_count; i++) {
 		val = vlv_dpio_read(dev_priv, pipe, CHV_TX_DW3(ch, i));
 		if (uniq_trans_scale)
 			val |= DPIO_TX_UNIQ_TRANS_SCALE_EN;
@@ -732,7 +732,7 @@ void chv_set_phy_signal_level(struct intel_encoder *encoder,
 	val |= DPIO_PCS_SWING_CALC_TX0_TX2 | DPIO_PCS_SWING_CALC_TX1_TX3;
 	vlv_dpio_write(dev_priv, pipe, VLV_PCS01_DW10(ch), val);
 
-	if (intel_crtc->config->lane_count > 2) {
+	if (crtc_state->lane_count > 2) {
 		val = vlv_dpio_read(dev_priv, pipe, VLV_PCS23_DW10(ch));
 		val |= DPIO_PCS_SWING_CALC_TX0_TX2 | DPIO_PCS_SWING_CALC_TX1_TX3;
 		vlv_dpio_write(dev_priv, pipe, VLV_PCS23_DW10(ch), val);
@@ -992,14 +992,15 @@ void chv_phy_post_pll_disable(struct intel_encoder *encoder,
 }
 
 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state,
 			      u32 demph_reg_value, u32 preemph_reg_value,
 			      u32 uniqtranscale_reg_value, u32 tx3_demph)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	enum dpio_channel port = vlv_dig_port_to_channel(dig_port);
-	enum pipe pipe = intel_crtc->pipe;
+	enum pipe pipe = crtc->pipe;
 
 	vlv_dpio_get(dev_priv);
 

drivers/gpu/drm/i915/display/intel_dpio_phy.h

@@ -32,6 +32,7 @@ void bxt_ddi_phy_set_lane_optim_mask(struct intel_encoder *encoder,
 u8 bxt_ddi_phy_get_lane_lat_optim_mask(struct intel_encoder *encoder);
 
 void chv_set_phy_signal_level(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state,
 			      u32 deemph_reg_value, u32 margin_reg_value,
 			      bool uniq_trans_scale);
 void chv_data_lane_soft_reset(struct intel_encoder *encoder,
@@ -46,6 +47,7 @@ void chv_phy_post_pll_disable(struct intel_encoder *encoder,
 			      const struct intel_crtc_state *old_crtc_state);
 
 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
+			      const struct intel_crtc_state *crtc_state,
 			      u32 demph_reg_value, u32 preemph_reg_value,
 			      u32 uniqtranscale_reg_value, u32 tx3_demph);
 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder,

drivers/gpu/drm/i915/display/intel_hdmi.c

@@ -2775,8 +2775,9 @@ static void vlv_hdmi_pre_enable(struct intel_atomic_state *state,
 	vlv_phy_pre_encoder_enable(encoder, pipe_config);
 
 	/* HDMI 1.0V-2dB */
-	vlv_set_phy_signal_level(encoder, 0x2b245f5f, 0x00002000, 0x5578b83a,
-				 0x2b247878);
+	vlv_set_phy_signal_level(encoder, pipe_config,
+				 0x2b245f5f, 0x00002000,
+				 0x5578b83a, 0x2b247878);
 
 	dig_port->set_infoframes(encoder,
 			      pipe_config->has_infoframe,
@@ -2853,7 +2854,7 @@ static void chv_hdmi_pre_enable(struct intel_atomic_state *state,
 
 	/* FIXME: Program the support xxx V-dB */
 	/* Use 800mV-0dB */
-	chv_set_phy_signal_level(encoder, 128, 102, false);
+	chv_set_phy_signal_level(encoder, pipe_config, 128, 102, false);
 
 	dig_port->set_infoframes(encoder,
 			      pipe_config->has_infoframe,