drm/amd/display: Add DP 2.0 BIOS and DMUB Support

Parse DP2 encoder caps and hpo instance from bios
Signed-off-by: NFangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -1604,6 +1604,16 @@ static enum bp_result bios_parser_get_encoder_cap_info(
 			ATOM_ENCODER_CAP_RECORD_HBR3_EN) ? 1 : 0;
 	info->HDMI_6GB_EN = (record->encodercaps &
 			ATOM_ENCODER_CAP_RECORD_HDMI6Gbps_EN) ? 1 : 0;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	info->IS_DP2_CAPABLE = (record->encodercaps &
+			ATOM_ENCODER_CAP_RECORD_DP2) ? 1 : 0;
+	info->DP_UHBR10_EN = (record->encodercaps &
+			ATOM_ENCODER_CAP_RECORD_UHBR10_EN) ? 1 : 0;
+	info->DP_UHBR13_5_EN = (record->encodercaps &
+			ATOM_ENCODER_CAP_RECORD_UHBR13_5_EN) ? 1 : 0;
+	info->DP_UHBR20_EN = (record->encodercaps &
+			ATOM_ENCODER_CAP_RECORD_UHBR20_EN) ? 1 : 0;
+#endif
 	info->DP_IS_USB_C = (record->encodercaps &
 			ATOM_ENCODER_CAP_RECORD_USB_C_TYPE) ? 1 : 0;
 

drivers/gpu/drm/amd/display/dc/bios/command_table2.c

@@ -340,6 +340,13 @@ static enum bp_result transmitter_control_v1_7(
 	const struct command_table_helper *cmd = bp->cmd_helper;
 	struct dmub_dig_transmitter_control_data_v1_7 dig_v1_7 = {0};
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	uint8_t hpo_instance = (uint8_t)cntl->hpo_engine_id - ENGINE_ID_HPO_0;
+
+	if (dc_is_dp_signal(cntl->signal))
+		hpo_instance = (uint8_t)cntl->hpo_engine_id - ENGINE_ID_HPO_DP_0;
+#endif
+
 	dig_v1_7.phyid = cmd->phy_id_to_atom(cntl->transmitter);
 	dig_v1_7.action = (uint8_t)cntl->action;
 
@@ -353,6 +360,9 @@ static enum bp_result transmitter_control_v1_7(
 	dig_v1_7.hpdsel = cmd->hpd_sel_to_atom(cntl->hpd_sel);
 	dig_v1_7.digfe_sel = cmd->dig_encoder_sel_to_atom(cntl->engine_id);
 	dig_v1_7.connobj_id = (uint8_t)cntl->connector_obj_id.id;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	dig_v1_7.HPO_instance = hpo_instance;
+#endif
 	dig_v1_7.symclk_units.symclk_10khz = cntl->pixel_clock/10;
 
 	if (cntl->action == TRANSMITTER_CONTROL_ENABLE ||

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dio_link_encoder.c

@@ -192,6 +192,10 @@ void dcn30_link_encoder_construct(
 		enc10->base.features.flags.bits.IS_HBR3_CAPABLE =
 				bp_cap_info.DP_HBR3_EN;
 		enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN;
+		enc10->base.features.flags.bits.IS_DP2_CAPABLE = bp_cap_info.IS_DP2_CAPABLE;
+		enc10->base.features.flags.bits.IS_UHBR10_CAPABLE = bp_cap_info.DP_UHBR10_EN;
+		enc10->base.features.flags.bits.IS_UHBR13_5_CAPABLE = bp_cap_info.DP_UHBR13_5_EN;
+		enc10->base.features.flags.bits.IS_UHBR20_CAPABLE = bp_cap_info.DP_UHBR20_EN;
 		enc10->base.features.flags.bits.DP_IS_USB_C =
 				bp_cap_info.DP_IS_USB_C;
 	} else {

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

@@ -59,6 +59,10 @@ struct encoder_feature_support {
 			uint32_t IS_TPS3_CAPABLE:1;
 			uint32_t IS_TPS4_CAPABLE:1;
 			uint32_t HDMI_6GB_EN:1;
+			uint32_t IS_DP2_CAPABLE:1;
+			uint32_t IS_UHBR10_CAPABLE:1;
+			uint32_t IS_UHBR13_5_CAPABLE:1;
+			uint32_t IS_UHBR20_CAPABLE:1;
 			uint32_t DP_IS_USB_C:1;
 		} bits;
 		uint32_t raw;

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

@@ -974,7 +974,7 @@ struct dmub_dig_transmitter_control_data_v1_7 {
 	uint8_t hpdsel; /**< =1: HPD1, =2: HPD2, ..., =6: HPD6, =0: HPD is not assigned */
 	uint8_t digfe_sel; /**< DIG front-end selection, bit0 means DIG0 FE is enabled */
 	uint8_t connobj_id; /**< Connector Object Id defined in ObjectId.h */
-	uint8_t reserved0; /**< For future use */
+	uint8_t HPO_instance; /**< HPO instance (0: inst0, 1: inst1) */
 	uint8_t reserved1; /**< For future use */
 	uint8_t reserved2[3]; /**< For future use */
 	uint32_t reserved3[11]; /**< For future use */

drivers/gpu/drm/amd/display/include/bios_parser_types.h

@@ -152,6 +152,10 @@ struct bp_transmitter_control {
 	enum signal_type signal;
 	enum dc_color_depth color_depth; /* not used for DCE6.0 */
 	enum hpd_source_id hpd_sel; /* ucHPDSel, used for DCe6.0 */
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	enum tx_ffe_id txffe_sel; /* used for DCN3 */
+	enum engine_id hpo_engine_id; /* used for DCN3 */
+#endif
 	struct graphics_object_id connector_obj_id;
 	/* symClock; in 10kHz, pixel clock, in HDMI deep color mode, it should
 	 * be pixel clock * deep_color_ratio (in KHz)
@@ -319,6 +323,10 @@ struct bp_encoder_cap_info {
 	uint32_t DP_HBR2_EN:1;
 	uint32_t DP_HBR3_EN:1;
 	uint32_t HDMI_6GB_EN:1;
+	uint32_t IS_DP2_CAPABLE:1;
+	uint32_t DP_UHBR10_EN:1;
+	uint32_t DP_UHBR13_5_EN:1;
+	uint32_t DP_UHBR20_EN:1;
 	uint32_t DP_IS_USB_C:1;
 	uint32_t RESERVED:27;
 };

drivers/gpu/drm/amd/include/atomfirmware.h

@@ -768,6 +768,10 @@ enum atom_encoder_caps_def
   ATOM_ENCODER_CAP_RECORD_HBR2_EN               =0x02,         // DP1.2 HBR2 setting is qualified and HBR2 can be enabled 
   ATOM_ENCODER_CAP_RECORD_HDMI6Gbps_EN          =0x04,         // HDMI2.0 6Gbps enable or not. 
   ATOM_ENCODER_CAP_RECORD_HBR3_EN               =0x08,         // DP1.3 HBR3 is supported by board. 
+  ATOM_ENCODER_CAP_RECORD_DP2                   =0x10,         // DP2 is supported by ASIC/board.
+  ATOM_ENCODER_CAP_RECORD_UHBR10_EN             =0x20,         // DP2.0 UHBR10 settings is supported by board
+  ATOM_ENCODER_CAP_RECORD_UHBR13_5_EN           =0x40,         // DP2.0 UHBR13.5 settings is supported by board
+  ATOM_ENCODER_CAP_RECORD_UHBR20_EN             =0x80,         // DP2.0 UHBR20 settings is supported by board
   ATOM_ENCODER_CAP_RECORD_USB_C_TYPE            =0x100,        // the DP connector is a USB-C type.
 };