drm/amd/display: Add DCN3 DIO

Add support for the DIO (Display IO)  block of DCN3, which entails our
stream and link encoders.

HW Blocks:

    +--------+
    |  DIO   |
    +--------+
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -3133,6 +3133,11 @@ void core_link_enable_stream(
 
 	pipe_ctx->stream->link->link_state_valid = true;
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+		if (pipe_ctx->stream_res.tg->funcs->set_out_mux)
+					pipe_ctx->stream_res.tg->funcs->set_out_mux(pipe_ctx->stream_res.tg, OUT_MUX_DIO);
+#endif
+
 	if (dc_is_dvi_signal(pipe_ctx->stream->signal))
 		pipe_ctx->stream_res.stream_enc->funcs->dvi_set_stream_attribute(
 			pipe_ctx->stream_res.stream_enc,
@@ -3215,6 +3220,15 @@ void core_link_enable_stream(
 					CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
 					COLOR_DEPTH_UNDEFINED);
 
+		/* This second call is needed to reconfigure the DIG
+		 * as a workaround for the incorrect value being applied
+		 * from transmitter control.
+		 */
+		if (!dc_is_virtual_signal(pipe_ctx->stream->signal))
+			stream->link->link_enc->funcs->setup(
+				stream->link->link_enc,
+				pipe_ctx->stream->signal);
+
 		dc->hwss.enable_stream(pipe_ctx);
 
 		/* Set DPS PPS SDP (AKA "info frames") */

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.h

@@ -153,6 +153,12 @@ struct dcn10_link_enc_registers {
 	uint32_t RAWLANE2_DIG_PCS_XF_RX_OVRD_IN_3;
 	uint32_t RAWLANE3_DIG_PCS_XF_RX_OVRD_IN_2;
 	uint32_t RAWLANE3_DIG_PCS_XF_RX_OVRD_IN_3;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	uint32_t TMDS_DCBALANCER_CONTROL;
+	uint32_t PHYA_LINK_CNTL2;
+	uint32_t PHYB_LINK_CNTL2;
+	uint32_t PHYC_LINK_CNTL2;
+#endif
 };
 
 #define LE_SF(reg_name, field_name, post_fix)\

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.h

@@ -169,6 +169,14 @@ struct dcn10_stream_enc_registers {
 	uint32_t DP_SEC_METADATA_TRANSMISSION;
 	uint32_t HDMI_METADATA_PACKET_CONTROL;
 	uint32_t DP_SEC_FRAMING4;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	uint32_t DP_GSP11_CNTL;
+	uint32_t HDMI_GENERIC_PACKET_CONTROL6;
+	uint32_t HDMI_GENERIC_PACKET_CONTROL7;
+	uint32_t HDMI_GENERIC_PACKET_CONTROL8;
+	uint32_t HDMI_GENERIC_PACKET_CONTROL9;
+	uint32_t HDMI_GENERIC_PACKET_CONTROL10;
+#endif
 	uint32_t DIG_CLOCK_PATTERN;
 };
 
@@ -483,14 +491,48 @@ struct dcn10_stream_enc_registers {
 	type DP_PIXEL_COMBINE;\
 	type DP_SST_SDP_SPLITTING
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+#define SE_REG_FIELD_LIST_DCN3_0(type) \
+	type HDMI_GENERIC8_CONT;\
+	type HDMI_GENERIC8_SEND;\
+	type HDMI_GENERIC8_LINE;\
+	type HDMI_GENERIC9_CONT;\
+	type HDMI_GENERIC9_SEND;\
+	type HDMI_GENERIC9_LINE;\
+	type HDMI_GENERIC10_CONT;\
+	type HDMI_GENERIC10_SEND;\
+	type HDMI_GENERIC10_LINE;\
+	type HDMI_GENERIC11_CONT;\
+	type HDMI_GENERIC11_SEND;\
+	type HDMI_GENERIC11_LINE;\
+	type HDMI_GENERIC12_CONT;\
+	type HDMI_GENERIC12_SEND;\
+	type HDMI_GENERIC12_LINE;\
+	type HDMI_GENERIC13_CONT;\
+	type HDMI_GENERIC13_SEND;\
+	type HDMI_GENERIC13_LINE;\
+	type HDMI_GENERIC14_CONT;\
+	type HDMI_GENERIC14_SEND;\
+	type HDMI_GENERIC14_LINE;\
+	type DP_SEC_GSP11_PPS;\
+	type DP_SEC_GSP11_ENABLE;\
+	type DP_SEC_GSP11_LINE_NUM
+#endif
+
 struct dcn10_stream_encoder_shift {
 	SE_REG_FIELD_LIST_DCN1_0(uint8_t);
 	SE_REG_FIELD_LIST_DCN2_0(uint8_t);
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	SE_REG_FIELD_LIST_DCN3_0(uint8_t);
+#endif
 };
 
 struct dcn10_stream_encoder_mask {
 	SE_REG_FIELD_LIST_DCN1_0(uint32_t);
 	SE_REG_FIELD_LIST_DCN2_0(uint32_t);
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	SE_REG_FIELD_LIST_DCN3_0(uint32_t);
+#endif
 };
 
 struct dcn10_stream_encoder {

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.h

@@ -274,6 +274,10 @@ struct mpll_cfg {
 	bool dp_tx1_vergdrv_byp;
 	bool dp_tx2_vergdrv_byp;
 	bool dp_tx3_vergdrv_byp;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	uint32_t tx_peaking_lvl;
+	uint32_t ctr_reqs_pll;
+#endif
 
 
 };

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

+/*
+ * Copyright 2020 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 "reg_helper.h"
+
+#include "core_types.h"
+#include "link_encoder.h"
+#include "dcn30_dio_link_encoder.h"
+#include "stream_encoder.h"
+#include "i2caux_interface.h"
+#include "dc_bios_types.h"
+/* #include "dcn3ag/dcn3ag_phy_fw.h" */
+
+#include "gpio_service_interface.h"
+
+#define CTX \
+	enc10->base.ctx
+#define DC_LOGGER \
+	enc10->base.ctx->logger
+
+#define REG(reg)\
+	(enc10->link_regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	enc10->link_shift->field_name, enc10->link_mask->field_name
+
+#define IND_REG(index) \
+	(enc10->link_regs->index)
+
+
+static bool dcn30_link_encoder_validate_output_with_stream(
+	struct link_encoder *enc,
+	const struct dc_stream_state *stream)
+{
+		return dcn10_link_encoder_validate_output_with_stream(enc, stream);
+}
+
+static const struct link_encoder_funcs dcn30_link_enc_funcs = {
+	.read_state = link_enc2_read_state,
+	.validate_output_with_stream =
+			dcn30_link_encoder_validate_output_with_stream,
+	.hw_init = enc2_hw_init,
+	.setup = dcn10_link_encoder_setup,
+	.enable_tmds_output = dcn10_link_encoder_enable_tmds_output,
+	.enable_dp_output = dcn20_link_encoder_enable_dp_output,
+	.enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output,
+	.disable_output = dcn10_link_encoder_disable_output,
+	.dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings,
+	.dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern,
+	.update_mst_stream_allocation_table =
+		dcn10_link_encoder_update_mst_stream_allocation_table,
+	.psr_program_dp_dphy_fast_training =
+			dcn10_psr_program_dp_dphy_fast_training,
+	.psr_program_secondary_packet = dcn10_psr_program_secondary_packet,
+	.connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe,
+	.enable_hpd = dcn10_link_encoder_enable_hpd,
+	.disable_hpd = dcn10_link_encoder_disable_hpd,
+	.is_dig_enabled = dcn10_is_dig_enabled,
+	.destroy = dcn10_link_encoder_destroy,
+	.fec_set_enable = enc2_fec_set_enable,
+	.fec_set_ready = enc2_fec_set_ready,
+	.fec_is_active = enc2_fec_is_active,
+	.get_dig_frontend = dcn10_get_dig_frontend,
+	.get_dig_mode = dcn10_get_dig_mode,
+	.is_in_alt_mode = dcn20_link_encoder_is_in_alt_mode,
+	.get_max_link_cap = dcn20_link_encoder_get_max_link_cap,
+};
+
+void dcn30_link_encoder_construct(
+	struct dcn20_link_encoder *enc20,
+	const struct encoder_init_data *init_data,
+	const struct encoder_feature_support *enc_features,
+	const struct dcn10_link_enc_registers *link_regs,
+	const struct dcn10_link_enc_aux_registers *aux_regs,
+	const struct dcn10_link_enc_hpd_registers *hpd_regs,
+	const struct dcn10_link_enc_shift *link_shift,
+	const struct dcn10_link_enc_mask *link_mask)
+{
+	struct bp_encoder_cap_info bp_cap_info = {0};
+	const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs;
+	enum bp_result result = BP_RESULT_OK;
+	struct dcn10_link_encoder *enc10 = &enc20->enc10;
+
+	enc10->base.funcs = &dcn30_link_enc_funcs;
+	enc10->base.ctx = init_data->ctx;
+	enc10->base.id = init_data->encoder;
+
+	enc10->base.hpd_source = init_data->hpd_source;
+	enc10->base.connector = init_data->connector;
+
+	enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
+
+	enc10->base.features = *enc_features;
+
+	enc10->base.transmitter = init_data->transmitter;
+
+	/* set the flag to indicate whether driver poll the I2C data pin
+	 * while doing the DP sink detect
+	 */
+
+/*	if (dal_adapter_service_is_feature_supported(as,
+		FEATURE_DP_SINK_DETECT_POLL_DATA_PIN))
+		enc10->base.features.flags.bits.
+			DP_SINK_DETECT_POLL_DATA_PIN = true;*/
+
+	enc10->base.output_signals =
+		SIGNAL_TYPE_DVI_SINGLE_LINK |
+		SIGNAL_TYPE_DVI_DUAL_LINK |
+		SIGNAL_TYPE_LVDS |
+		SIGNAL_TYPE_DISPLAY_PORT |
+		SIGNAL_TYPE_DISPLAY_PORT_MST |
+		SIGNAL_TYPE_EDP |
+		SIGNAL_TYPE_HDMI_TYPE_A;
+
+	/* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE.
+	 * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY.
+	 * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer
+	 * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS.
+	 * Prefer DIG assignment is decided by board design.
+	 * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design
+	 * and VBIOS will filter out 7 UNIPHY for DCE 8.0.
+	 * By this, adding DIGG should not hurt DCE 8.0.
+	 * This will let DCE 8.1 share DCE 8.0 as much as possible
+	 */
+
+	enc10->link_regs = link_regs;
+	enc10->aux_regs = aux_regs;
+	enc10->hpd_regs = hpd_regs;
+	enc10->link_shift = link_shift;
+	enc10->link_mask = link_mask;
+
+	switch (enc10->base.transmitter) {
+	case TRANSMITTER_UNIPHY_A:
+		enc10->base.preferred_engine = ENGINE_ID_DIGA;
+	break;
+	case TRANSMITTER_UNIPHY_B:
+		enc10->base.preferred_engine = ENGINE_ID_DIGB;
+	break;
+	case TRANSMITTER_UNIPHY_C:
+		enc10->base.preferred_engine = ENGINE_ID_DIGC;
+	break;
+	case TRANSMITTER_UNIPHY_D:
+		enc10->base.preferred_engine = ENGINE_ID_DIGD;
+	break;
+	case TRANSMITTER_UNIPHY_E:
+		enc10->base.preferred_engine = ENGINE_ID_DIGE;
+	break;
+	case TRANSMITTER_UNIPHY_F:
+		enc10->base.preferred_engine = ENGINE_ID_DIGF;
+	break;
+	case TRANSMITTER_UNIPHY_G:
+		enc10->base.preferred_engine = ENGINE_ID_DIGG;
+	break;
+	default:
+		ASSERT_CRITICAL(false);
+		enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
+	}
+
+	/* default to one to mirror Windows behavior */
+	enc10->base.features.flags.bits.HDMI_6GB_EN = 1;
+
+	result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios,
+						enc10->base.id, &bp_cap_info);
+
+	/* Override features with DCE-specific values */
+	if (result == BP_RESULT_OK) {
+		enc10->base.features.flags.bits.IS_HBR2_CAPABLE =
+				bp_cap_info.DP_HBR2_EN;
+		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.DP_IS_USB_C =
+				bp_cap_info.DP_IS_USB_C;
+	} else {
+		DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n",
+				__func__,
+				result);
+	}
+	if (enc10->base.ctx->dc->debug.hdmi20_disable) {
+		enc10->base.features.flags.bits.HDMI_6GB_EN = 0;
+	}
+}

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

+/*
+ * Copyright 2020 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 __DC_LINK_ENCODER__DCN30_H__
+#define __DC_LINK_ENCODER__DCN30_H__
+
+#include "dcn20/dcn20_link_encoder.h"
+
+#define LE_DCN3_REG_LIST(id)\
+	SRI(DIG_BE_CNTL, DIG, id), \
+	SRI(DIG_BE_EN_CNTL, DIG, id), \
+	SRI(TMDS_CTL_BITS, DIG, id), \
+	SRI(TMDS_DCBALANCER_CONTROL, DIG, id), \
+	SRI(DP_CONFIG, DP, id), \
+	SRI(DP_DPHY_CNTL, DP, id), \
+	SRI(DP_DPHY_PRBS_CNTL, DP, id), \
+	SRI(DP_DPHY_SCRAM_CNTL, DP, id),\
+	SRI(DP_DPHY_SYM0, DP, id), \
+	SRI(DP_DPHY_SYM1, DP, id), \
+	SRI(DP_DPHY_SYM2, DP, id), \
+	SRI(DP_DPHY_TRAINING_PATTERN_SEL, DP, id), \
+	SRI(DP_LINK_CNTL, DP, id), \
+	SRI(DP_LINK_FRAMING_CNTL, DP, id), \
+	SRI(DP_MSE_SAT0, DP, id), \
+	SRI(DP_MSE_SAT1, DP, id), \
+	SRI(DP_MSE_SAT2, DP, id), \
+	SRI(DP_MSE_SAT_UPDATE, DP, id), \
+	SRI(DP_SEC_CNTL, DP, id), \
+	SRI(DP_VID_STREAM_CNTL, DP, id), \
+	SRI(DP_DPHY_FAST_TRAINING, DP, id), \
+	SRI(DP_SEC_CNTL1, DP, id), \
+	SRI(DP_DPHY_BS_SR_SWAP_CNTL, DP, id), \
+	SRI(DP_DPHY_HBR2_PATTERN_CONTROL, DP, id)
+
+#define LINK_ENCODER_MASK_SH_LIST_DCN30(mask_sh) \
+	LINK_ENCODER_MASK_SH_LIST_DCN20(mask_sh)
+
+#define DPCS_DCN3_MASK_SH_LIST(mask_sh)\
+	DPCS_DCN2_MASK_SH_LIST(mask_sh),\
+	LE_SF(DPCSTX0_DPCSTX_TX_CNTL, DPCS_TX_DATA_ORDER_INVERT_18_BIT, mask_sh),\
+	LE_SF(RDPCSTX0_RDPCSTX_PHY_CNTL0, RDPCS_PHY_TX_VBOOST_LVL, mask_sh),\
+	LE_SF(RDPCSTX0_RDPCSTX_CLOCK_CNTL, RDPCS_TX_CLK_EN, mask_sh)
+
+void dcn30_link_encoder_construct(
+	struct dcn20_link_encoder *enc20,
+	const struct encoder_init_data *init_data,
+	const struct encoder_feature_support *enc_features,
+	const struct dcn10_link_enc_registers *link_regs,
+	const struct dcn10_link_enc_aux_registers *aux_regs,
+	const struct dcn10_link_enc_hpd_registers *hpd_regs,
+	const struct dcn10_link_enc_shift *link_shift,
+	const struct dcn10_link_enc_mask *link_mask);
+
+#endif /* __DC_LINK_ENCODER__DCN30_H__ */

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

@@ -104,6 +104,10 @@ struct stream_encoder {
 	struct dc_bios *bp;
 	enum engine_id id;
 	uint32_t stream_enc_inst;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	struct vpg *vpg;
+	struct afmt *afmt;
+#endif
 };
 
 struct enc_state {