drm/amd/display: Add dcn3.01 support to DC (v2)

Update dc for vangogh support.

v2: fix compilation without DCN 301 set.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

48 files changed, 5232 insertions, 33 deletions

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index f24abf428534..c2283e6ea734 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -25,6 +25,15 @@ config DRM_AMD_DC_DCN3_0
             Choose this option if you want to have
             sienna_cichlid support for display engine
 
+config DRM_AMD_DC_DCN3_01
+	bool "DCN 3.01 family"
+	depends on DRM_AMD_DC && X86
+	depends on DRM_AMD_DC_DCN
+	depends on DRM_AMD_DC_DCN3_0
+	help
+	    Choose this option if you want to have
+	    Van Gogh support for display engine
+
 config DRM_AMD_DC_HDCP
 	bool "Enable HDCP support in DC"
 	depends on DRM_AMD_DC
diff --git a/drivers/gpu/drm/amd/display/dc/Makefile b/drivers/gpu/drm/amd/display/dc/Makefile
index 047b1e2dd8f1..6e6ec1d92488 100644
--- a/drivers/gpu/drm/amd/display/dc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/Makefile
@@ -36,6 +36,10 @@ ifdef CONFIG_DRM_AMD_DC_DCN3_0
 DC_LIBS += dcn30
 endif
 
+ifdef CONFIG_DRM_AMD_DC_DCN3_01
+DC_LIBS += dcn301
+endif
+
 DC_LIBS += dce120
 
 DC_LIBS += dce112
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 29d64e7e304f..8fa002ec6969 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -1743,6 +1743,167 @@ static enum bp_result get_integrated_info_v11(
 	return BP_RESULT_OK;
 }
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+static enum bp_result get_integrated_info_v2_1(
+	struct bios_parser *bp,
+	struct integrated_info *info)
+{
+	struct atom_integrated_system_info_v2_1 *info_v2_1;
+	uint32_t i;
+
+	info_v2_1 = GET_IMAGE(struct atom_integrated_system_info_v2_1,
+					DATA_TABLES(integratedsysteminfo));
+
+	if (info_v2_1 == NULL)
+		return BP_RESULT_BADBIOSTABLE;
+
+	info->gpu_cap_info =
+	le32_to_cpu(info_v2_1->gpucapinfo);
+	/*
+	* system_config: Bit[0] = 0 : PCIE power gating disabled
+	*                       = 1 : PCIE power gating enabled
+	*                Bit[1] = 0 : DDR-PLL shut down disabled
+	*                       = 1 : DDR-PLL shut down enabled
+	*                Bit[2] = 0 : DDR-PLL power down disabled
+	*                       = 1 : DDR-PLL power down enabled
+	*/
+	info->system_config = le32_to_cpu(info_v2_1->system_config);
+	info->cpu_cap_info = le32_to_cpu(info_v2_1->cpucapinfo);
+	info->memory_type = info_v2_1->memorytype;
+	info->ma_channel_number = info_v2_1->umachannelnumber;
+	info->dp_ss_control =
+		le16_to_cpu(info_v2_1->reserved1);
+
+	for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
+		info->ext_disp_conn_info.gu_id[i] =
+				info_v2_1->extdispconninfo.guid[i];
+	}
+
+	for (i = 0; i < MAX_NUMBER_OF_EXT_DISPLAY_PATH; ++i) {
+		info->ext_disp_conn_info.path[i].device_connector_id =
+		object_id_from_bios_object_id(
+		le16_to_cpu(info_v2_1->extdispconninfo.path[i].connectorobjid));
+
+		info->ext_disp_conn_info.path[i].ext_encoder_obj_id =
+		object_id_from_bios_object_id(
+			le16_to_cpu(
+			info_v2_1->extdispconninfo.path[i].ext_encoder_objid));
+
+		info->ext_disp_conn_info.path[i].device_tag =
+			le16_to_cpu(
+				info_v2_1->extdispconninfo.path[i].device_tag);
+		info->ext_disp_conn_info.path[i].device_acpi_enum =
+		le16_to_cpu(
+			info_v2_1->extdispconninfo.path[i].device_acpi_enum);
+		info->ext_disp_conn_info.path[i].ext_aux_ddc_lut_index =
+			info_v2_1->extdispconninfo.path[i].auxddclut_index;
+		info->ext_disp_conn_info.path[i].ext_hpd_pin_lut_index =
+			info_v2_1->extdispconninfo.path[i].hpdlut_index;
+		info->ext_disp_conn_info.path[i].channel_mapping.raw =
+			info_v2_1->extdispconninfo.path[i].channelmapping;
+		info->ext_disp_conn_info.path[i].caps =
+				le16_to_cpu(info_v2_1->extdispconninfo.path[i].caps);
+	}
+
+	info->ext_disp_conn_info.checksum =
+		info_v2_1->extdispconninfo.checksum;
+	info->dp0_ext_hdmi_slv_addr = info_v2_1->dp0_retimer_set.HdmiSlvAddr;
+	info->dp0_ext_hdmi_reg_num = info_v2_1->dp0_retimer_set.HdmiRegNum;
+	for (i = 0; i < info->dp0_ext_hdmi_reg_num; i++) {
+		info->dp0_ext_hdmi_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp0_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
+		info->dp0_ext_hdmi_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp0_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
+	}
+	info->dp0_ext_hdmi_6g_reg_num = info_v2_1->dp0_retimer_set.Hdmi6GRegNum;
+	for (i = 0; i < info->dp0_ext_hdmi_6g_reg_num; i++) {
+		info->dp0_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp0_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
+		info->dp0_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp0_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
+	}
+	info->dp1_ext_hdmi_slv_addr = info_v2_1->dp1_retimer_set.HdmiSlvAddr;
+	info->dp1_ext_hdmi_reg_num = info_v2_1->dp1_retimer_set.HdmiRegNum;
+	for (i = 0; i < info->dp1_ext_hdmi_reg_num; i++) {
+		info->dp1_ext_hdmi_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp1_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
+		info->dp1_ext_hdmi_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp1_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
+	}
+	info->dp1_ext_hdmi_6g_reg_num = info_v2_1->dp1_retimer_set.Hdmi6GRegNum;
+	for (i = 0; i < info->dp1_ext_hdmi_6g_reg_num; i++) {
+		info->dp1_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp1_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
+		info->dp1_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp1_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
+	}
+	info->dp2_ext_hdmi_slv_addr = info_v2_1->dp2_retimer_set.HdmiSlvAddr;
+	info->dp2_ext_hdmi_reg_num = info_v2_1->dp2_retimer_set.HdmiRegNum;
+	for (i = 0; i < info->dp2_ext_hdmi_reg_num; i++) {
+		info->dp2_ext_hdmi_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp2_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
+		info->dp2_ext_hdmi_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp2_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
+	}
+	info->dp2_ext_hdmi_6g_reg_num = info_v2_1->dp2_retimer_set.Hdmi6GRegNum;
+	for (i = 0; i < info->dp2_ext_hdmi_6g_reg_num; i++) {
+		info->dp2_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp2_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
+		info->dp2_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp2_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
+	}
+	info->dp3_ext_hdmi_slv_addr = info_v2_1->dp3_retimer_set.HdmiSlvAddr;
+	info->dp3_ext_hdmi_reg_num = info_v2_1->dp3_retimer_set.HdmiRegNum;
+	for (i = 0; i < info->dp3_ext_hdmi_reg_num; i++) {
+		info->dp3_ext_hdmi_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp3_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
+		info->dp3_ext_hdmi_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp3_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
+	}
+	info->dp3_ext_hdmi_6g_reg_num = info_v2_1->dp3_retimer_set.Hdmi6GRegNum;
+	for (i = 0; i < info->dp3_ext_hdmi_6g_reg_num; i++) {
+		info->dp3_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
+				info_v2_1->dp3_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
+		info->dp3_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
+				info_v2_1->dp3_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
+	}
+
+	info->edp1_info.edp_backlight_pwm_hz =
+	le16_to_cpu(info_v2_1->edp1_info.edp_backlight_pwm_hz);
+	info->edp1_info.edp_ss_percentage =
+	le16_to_cpu(info_v2_1->edp1_info.edp_ss_percentage);
+	info->edp1_info.edp_ss_rate_10hz =
+	le16_to_cpu(info_v2_1->edp1_info.edp_ss_rate_10hz);
+	info->edp1_info.edp_pwr_on_off_delay =
+		info_v2_1->edp1_info.edp_pwr_on_off_delay;
+	info->edp1_info.edp_pwr_on_vary_bl_to_blon =
+		info_v2_1->edp1_info.edp_pwr_on_vary_bl_to_blon;
+	info->edp1_info.edp_pwr_down_bloff_to_vary_bloff =
+		info_v2_1->edp1_info.edp_pwr_down_bloff_to_vary_bloff;
+	info->edp1_info.edp_panel_bpc =
+		info_v2_1->edp1_info.edp_panel_bpc;
+	info->edp1_info.edp_bootup_bl_level =
+
+	info->edp2_info.edp_backlight_pwm_hz =
+	le16_to_cpu(info_v2_1->edp2_info.edp_backlight_pwm_hz);
+	info->edp2_info.edp_ss_percentage =
+	le16_to_cpu(info_v2_1->edp2_info.edp_ss_percentage);
+	info->edp2_info.edp_ss_rate_10hz =
+	le16_to_cpu(info_v2_1->edp2_info.edp_ss_rate_10hz);
+	info->edp2_info.edp_pwr_on_off_delay =
+		info_v2_1->edp2_info.edp_pwr_on_off_delay;
+	info->edp2_info.edp_pwr_on_vary_bl_to_blon =
+		info_v2_1->edp2_info.edp_pwr_on_vary_bl_to_blon;
+	info->edp2_info.edp_pwr_down_bloff_to_vary_bloff =
+		info_v2_1->edp2_info.edp_pwr_down_bloff_to_vary_bloff;
+	info->edp2_info.edp_panel_bpc =
+		info_v2_1->edp2_info.edp_panel_bpc;
+	info->edp2_info.edp_bootup_bl_level =
+		info_v2_1->edp2_info.edp_bootup_bl_level;
+
+	return BP_RESULT_OK;
+}
+#endif
 
 /*
  * construct_integrated_info
@@ -1775,6 +1936,31 @@ static enum bp_result construct_integrated_info(
 
 		get_atom_data_table_revision(header, &revision);
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+		switch (revision.major) {
+		case 1:
+			switch (revision.minor) {
+			case 11:
+			case 12:
+				result = get_integrated_info_v11(bp, info);
+				break;
+			default:
+				return result;
+			}
+			break;
+		case 2:
+			switch (revision.minor) {
+			case 1:
+				result = get_integrated_info_v2_1(bp, info);
+				break;
+			default:
+				return result;
+			}
+			break;
+		default:
+			return result;
+		}
+#else
 		/* Don't need to check major revision as they are all 1 */
 		switch (revision.minor) {
 		case 11:
@@ -1784,6 +1970,7 @@ static enum bp_result construct_integrated_info(
 		default:
 			return result;
 		}
+#endif
 	}
 
 	if (result != BP_RESULT_OK)
diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c b/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
index 74c498b6774d..515dac743ae0 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
@@ -78,7 +78,11 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 		*h = dal_cmd_tbl_helper_dce112_get_table2();
 		return true;
 #endif
-
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+	case DCN_VERSION_3_01:
+		*h = dal_cmd_tbl_helper_dce112_get_table2();
+		return true;
+#endif
 	default:
 		/* Unsupported DCE */
 		BREAK_TO_DEBUGGER();
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
index 1a495759a034..8c6d0a2acba4 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
@@ -125,3 +125,13 @@ AMD_DAL_CLK_MGR_DCN30 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn30/,$(CLK_MGR_DC
 
 AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN30)
 endif
+ifdef CONFIG_DRM_AMD_DC_DCN3_01
+###############################################################################
+# DCN301
+###############################################################################
+CLK_MGR_DCN301 = vg_clk_mgr.o dcn301_smu.o
+
+AMD_DAL_CLK_MGR_DCN301 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn301/,$(CLK_MGR_DCN301))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN301)
+endif
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c
index efb909ef7a0f..270a8182682d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c
@@ -42,6 +42,9 @@
 #if defined(CONFIG_DRM_AMD_DC_DCN3_0)
 #include "dcn30/dcn30_clk_mgr.h"
 #endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+#include "dcn301/vg_clk_mgr.h"
+#endif
 
 
 int clk_mgr_helper_get_active_display_cnt(
@@ -188,6 +191,12 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 		break;
 #endif	/* Family RV and NV*/
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+	case FAMILY_VGH:
+		if (ASICREV_IS_VANGOGH(asic_id.hw_internal_rev))
+			vg_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
+		break;
+#endif
 	default:
 		ASSERT(0); /* Unknown Asic */
 		break;
@@ -205,8 +214,18 @@ void dc_destroy_clk_mgr(struct clk_mgr *clk_mgr_base)
 	case FAMILY_NV:
 		if (ASICREV_IS_SIENNA_CICHLID_P(clk_mgr_base->ctx->asic_id.hw_internal_rev)) {
 			dcn3_clk_mgr_destroy(clk_mgr);
-			break;
 		}
+		break;
+
+#if defined(CONFIG_DRM_AMD_DC_DCN3_01)
+	case FAMILY_VGH:
+		if (ASICREV_IS_VANGOGH(clk_mgr_base->ctx->asic_id.hw_internal_rev))
+			vg_clk_mgr_destroy(clk_mgr);
+		break;
+#endif
+
+	default:
+		break;
 	}
 #endif
 
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
new file mode 100644
index 000000000000..cfa8e02cf103
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
@@ -0,0 +1,241 @@
+/*
+ * 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 "core_types.h"
+#include "clk_mgr_internal.h"
+#include "reg_helper.h"
+#include <linux/delay.h>
+
+#include "dcn301_smu.h"
+
+#include "vangogh_ip_offset.h"
+
+#include "mp/mp_11_5_0_offset.h"
+#include "mp/mp_11_5_0_sh_mask.h"
+
+#define REG(reg_name) \
+	(MP0_BASE.instance[0].segment[mm ## reg_name ## _BASE_IDX] + mm ## reg_name)
+
+#define FN(reg_name, field) \
+	FD(reg_name##__##field)
+
+#define VBIOSSMC_MSG_GetSmuVersion                0x2
+#define VBIOSSMC_MSG_SetDispclkFreq               0x4
+#define VBIOSSMC_MSG_SetDprefclkFreq              0x5
+#define VBIOSSMC_MSG_SetDppclkFreq                0x6
+#define VBIOSSMC_MSG_SetHardMinDcfclkByFreq       0x7
+#define VBIOSSMC_MSG_SetMinDeepSleepDcfclk        0x8
+//#define VBIOSSMC_MSG_SetPhyclkVoltageByFreq       0xA
+#define VBIOSSMC_MSG_GetFclkFrequency             0xA
+//#define VBIOSSMC_MSG_SetDisplayCount              0xC
+//#define VBIOSSMC_MSG_EnableTmdp48MHzRefclkPwrDown 0xD
+#define VBIOSSMC_MSG_UpdatePmeRestore			  0xD
+#define VBIOSSMC_MSG_SetVbiosDramAddrHigh         0xE   //Used for WM table txfr
+#define VBIOSSMC_MSG_SetVbiosDramAddrLow          0xF
+#define VBIOSSMC_MSG_TransferTableSmu2Dram        0x10
+#define VBIOSSMC_MSG_TransferTableDram2Smu        0x11
+#define VBIOSSMC_MSG_SetDisplayIdleOptimizations  0x12
+
+#define VBIOSSMC_Status_BUSY                      0x0
+#define VBIOSSMC_Result_OK                        0x1
+#define VBIOSSMC_Result_Failed                    0xFF
+#define VBIOSSMC_Result_UnknownCmd                0xFE
+#define VBIOSSMC_Result_CmdRejectedPrereq         0xFD
+#define VBIOSSMC_Result_CmdRejectedBusy           0xFC
+
+/*
+ * Function to be used instead of REG_WAIT macro because the wait ends when
+ * the register is NOT EQUAL to zero, and because the translation in msg_if.h
+ * won't work with REG_WAIT.
+ */
+static uint32_t dcn301_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, unsigned int delay_us, unsigned int max_retries)
+{
+	uint32_t res_val = VBIOSSMC_Status_BUSY;
+
+	do {
+		res_val = REG_READ(MP1_SMN_C2PMSG_91);
+		if (res_val != VBIOSSMC_Status_BUSY)
+			break;
+
+		if (delay_us >= 1000)
+			msleep(delay_us/1000);
+		else if (delay_us > 0)
+			udelay(delay_us);
+	} while (max_retries--);
+
+	return res_val;
+}
+
+int dcn301_smu_send_msg_with_param(
+		struct clk_mgr_internal *clk_mgr,
+		unsigned int msg_id, unsigned int param)
+{
+	uint32_t result;
+
+	/* First clear response register */
+	REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Status_BUSY);
+
+	/* Set the parameter register for the SMU message, unit is Mhz */
+	REG_WRITE(MP1_SMN_C2PMSG_83, param);
+
+	/* Trigger the message transaction by writing the message ID */
+	REG_WRITE(MP1_SMN_C2PMSG_67, msg_id);
+
+	result = dcn301_smu_wait_for_response(clk_mgr, 10, 1000);
+
+	ASSERT(result == VBIOSSMC_Result_OK);
+
+	/* Actual dispclk set is returned in the parameter register */
+	return REG_READ(MP1_SMN_C2PMSG_83);
+}
+
+int dcn301_smu_get_smu_version(struct clk_mgr_internal *clk_mgr)
+{
+	return dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_GetSmuVersion,
+			0);
+}
+
+
+int dcn301_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz)
+{
+	int actual_dispclk_set_mhz = -1;
+
+	/*  Unit of SMU msg parameter is Mhz */
+	actual_dispclk_set_mhz = dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetDispclkFreq,
+			requested_dispclk_khz / 1000);
+
+	return actual_dispclk_set_mhz * 1000;
+}
+
+int dcn301_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr)
+{
+	int actual_dprefclk_set_mhz = -1;
+
+	actual_dprefclk_set_mhz = dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetDprefclkFreq,
+			clk_mgr->base.dprefclk_khz / 1000);
+
+	/* TODO: add code for programing DP DTO, currently this is down by command table */
+
+	return actual_dprefclk_set_mhz * 1000;
+}
+
+int dcn301_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_dcfclk_khz)
+{
+	int actual_dcfclk_set_mhz = -1;
+
+	actual_dcfclk_set_mhz = dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetHardMinDcfclkByFreq,
+			requested_dcfclk_khz / 1000);
+
+	return actual_dcfclk_set_mhz * 1000;
+}
+
+int dcn301_smu_set_min_deep_sleep_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_min_ds_dcfclk_khz)
+{
+	int actual_min_ds_dcfclk_mhz = -1;
+
+	actual_min_ds_dcfclk_mhz = dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetMinDeepSleepDcfclk,
+			requested_min_ds_dcfclk_khz / 1000);
+
+	return actual_min_ds_dcfclk_mhz * 1000;
+}
+
+int dcn301_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_khz)
+{
+	int actual_dppclk_set_mhz = -1;
+
+	actual_dppclk_set_mhz = dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetDppclkFreq,
+			requested_dpp_khz / 1000);
+
+	return actual_dppclk_set_mhz * 1000;
+}
+
+void dcn301_smu_set_display_idle_optimization(struct clk_mgr_internal *clk_mgr, uint32_t idle_info)
+{
+	//TODO: Work with smu team to define optimization options.
+
+	dcn301_smu_send_msg_with_param(
+		clk_mgr,
+		VBIOSSMC_MSG_SetDisplayIdleOptimizations,
+		idle_info);
+}
+
+void dcn301_smu_enable_phy_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable)
+{
+	union display_idle_optimization_u idle_info = { 0 };
+
+	if (enable) {
+		idle_info.idle_info.df_request_disabled = 1;
+		idle_info.idle_info.phy_ref_clk_off = 1;
+	}
+
+	dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_SetDisplayIdleOptimizations,
+			idle_info.data);
+}
+
+void dcn301_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr)
+{
+	dcn301_smu_send_msg_with_param(
+			clk_mgr,
+			VBIOSSMC_MSG_UpdatePmeRestore,
+			0);
+}
+
+void dcn301_smu_set_dram_addr_high(struct clk_mgr_internal *clk_mgr, uint32_t addr_high)
+{
+	dcn301_smu_send_msg_with_param(clk_mgr,
+			VBIOSSMC_MSG_SetVbiosDramAddrHigh, addr_high);
+}
+
+void dcn301_smu_set_dram_addr_low(struct clk_mgr_internal *clk_mgr, uint32_t addr_low)
+{
+	dcn301_smu_send_msg_with_param(clk_mgr,
+			VBIOSSMC_MSG_SetVbiosDramAddrLow, addr_low);
+}
+
+void dcn301_smu_transfer_dpm_table_smu_2_dram(struct clk_mgr_internal *clk_mgr)
+{
+	dcn301_smu_send_msg_with_param(clk_mgr,
+			VBIOSSMC_MSG_TransferTableSmu2Dram, TABLE_DPMCLOCKS);
+}
+
+void dcn301_smu_transfer_wm_table_dram_2_smu(struct clk_mgr_internal *clk_mgr)
+{
+	dcn301_smu_send_msg_with_param(clk_mgr,
+			VBIOSSMC_MSG_TransferTableDram2Smu, TABLE_WATERMARKS);
+}
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.h
new file mode 100644
index 000000000000..b640df85a17f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.h
@@ -0,0 +1,164 @@
+/*
+ * 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 DAL_DC_301_SMU_H_
+#define DAL_DC_301_SMU_H_
+
+#define SMU13_DRIVER_IF_VERSION 2
+
+typedef struct {
+	uint32_t fclk;
+	uint32_t memclk;
+	uint32_t voltage;
+} df_pstate_t;
+
+typedef struct {
+	uint32_t vclk;
+	uint32_t dclk;
+} vcn_clk_t;
+
+typedef enum {
+	DSPCLK_DCFCLK = 0,
+	DSPCLK_DISPCLK,
+	DSPCLK_PIXCLK,
+	DSPCLK_PHYCLK,
+	DSPCLK_COUNT,
+} DSPCLK_e;
+
+typedef struct {
+	uint16_t Freq; // in MHz
+	uint16_t Vid;  // min voltage in SVI2 VID
+} DisplayClockTable_t;
+
+typedef struct {
+	uint16_t MinClock; // This is either DCFCLK or SOCCLK (in MHz)
+	ui