drm/amd/powerplay: Add CG and PG support for tonga

Implement clock and power gating support for tonga.  On Tonga
this is handles by the SMU rather than direct register settings
in the driver.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/Makefile

@@ -7,7 +7,7 @@ HARDWARE_MGR = hwmgr.o processpptables.o functiontables.o \
                cz_clockpowergating.o \
 	       tonga_processpptables.o ppatomctrl.o \
                tonga_hwmgr.o 	pppcielanes.o \
-               fiji_powertune.o fiji_hwmgr.o
+               fiji_powertune.o fiji_hwmgr.o tonga_clockpowergating.o
 
 AMD_PP_HWMGR = $(addprefix $(AMD_PP_PATH)/hwmgr/,$(HARDWARE_MGR))
 

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.c

+/*
+ * Copyright 2015 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.
+ *
+ */
+
+#include "hwmgr.h"
+#include "tonga_clockpowergating.h"
+#include "tonga_ppsmc.h"
+#include "tonga_hwmgr.h"
+
+int tonga_phm_powerdown_uvd(struct pp_hwmgr *hwmgr)
+{
+	if (phm_cf_want_uvd_power_gating(hwmgr))
+		return smum_send_msg_to_smc(hwmgr->smumgr,
+						     PPSMC_MSG_UVDPowerOFF);
+	return 0;
+}
+
+int tonga_phm_powerup_uvd(struct pp_hwmgr *hwmgr)
+{
+	if (phm_cf_want_uvd_power_gating(hwmgr)) {
+		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+				  PHM_PlatformCaps_UVDDynamicPowerGating)) {
+			return smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+								PPSMC_MSG_UVDPowerON, 1);
+		} else {
+			return smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+								PPSMC_MSG_UVDPowerON, 0);
+		}
+	}
+
+	return 0;
+}
+
+int tonga_phm_powerdown_vce(struct pp_hwmgr *hwmgr)
+{
+	if (phm_cf_want_vce_power_gating(hwmgr))
+		return smum_send_msg_to_smc(hwmgr->smumgr,
+						  PPSMC_MSG_VCEPowerOFF);
+	return 0;
+}
+
+int tonga_phm_powerup_vce(struct pp_hwmgr *hwmgr)
+{
+	if (phm_cf_want_vce_power_gating(hwmgr))
+		return smum_send_msg_to_smc(hwmgr->smumgr,
+						  PPSMC_MSG_VCEPowerON);
+	return 0;
+}
+
+int tonga_phm_set_asic_block_gating(struct pp_hwmgr *hwmgr, enum PHM_AsicBlock block, enum PHM_ClockGateSetting gating)
+{
+	int ret = 0;
+
+	switch (block) {
+	case PHM_AsicBlock_UVD_MVC:
+	case PHM_AsicBlock_UVD:
+	case PHM_AsicBlock_UVD_HD:
+	case PHM_AsicBlock_UVD_SD:
+		if (gating == PHM_ClockGateSetting_StaticOff)
+			ret = tonga_phm_powerdown_uvd(hwmgr);
+		else
+			ret = tonga_phm_powerup_uvd(hwmgr);
+		break;
+	case PHM_AsicBlock_GFX:
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+int tonga_phm_disable_clock_power_gating(struct pp_hwmgr *hwmgr)
+{
+	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+
+	data->uvd_power_gated = false;
+	data->vce_power_gated = false;
+
+	tonga_phm_powerup_uvd(hwmgr);
+	tonga_phm_powerup_vce(hwmgr);
+
+	return 0;
+}
+
+int tonga_phm_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate)
+{
+	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+
+	if (data->uvd_power_gated == bgate)
+		return 0;
+
+	data->uvd_power_gated = bgate;
+
+	if (bgate) {
+		cgs_set_clockgating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_UVD,
+						AMD_CG_STATE_UNGATE);
+		cgs_set_powergating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_UVD,
+						AMD_PG_STATE_GATE);
+		tonga_update_uvd_dpm(hwmgr, true);
+		tonga_phm_powerdown_uvd(hwmgr);
+	} else {
+		tonga_phm_powerup_uvd(hwmgr);
+		cgs_set_powergating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_UVD,
+						AMD_PG_STATE_UNGATE);
+		cgs_set_clockgating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_UVD,
+						AMD_PG_STATE_GATE);
+
+		tonga_update_uvd_dpm(hwmgr, false);
+	}
+
+	return 0;
+}
+
+int tonga_phm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
+{
+	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+	struct phm_set_power_state_input states;
+	const struct pp_power_state  *pcurrent;
+	struct pp_power_state  *requested;
+
+	pcurrent = hwmgr->current_ps;
+	requested = hwmgr->request_ps;
+
+	states.pcurrent_state = &(pcurrent->hardware);
+	states.pnew_state = &(requested->hardware);
+
+	if (phm_cf_want_vce_power_gating(hwmgr)) {
+		if (data->vce_power_gated != bgate) {
+			if (bgate) {
+				cgs_set_clockgating_state(
+							hwmgr->device,
+							AMD_IP_BLOCK_TYPE_VCE,
+							AMD_CG_STATE_UNGATE);
+				cgs_set_powergating_state(
+							hwmgr->device,
+							AMD_IP_BLOCK_TYPE_VCE,
+							AMD_PG_STATE_GATE);
+				tonga_enable_disable_vce_dpm(hwmgr, false);
+				data->vce_power_gated = true;
+			} else {
+				tonga_phm_powerup_vce(hwmgr);
+				data->vce_power_gated = false;
+				cgs_set_powergating_state(
+							hwmgr->device,
+							AMD_IP_BLOCK_TYPE_VCE,
+							AMD_PG_STATE_UNGATE);
+				cgs_set_clockgating_state(
+							hwmgr->device,
+							AMD_IP_BLOCK_TYPE_VCE,
+							AMD_PG_STATE_GATE);
+
+				tonga_update_vce_dpm(hwmgr, &states);
+				tonga_enable_disable_vce_dpm(hwmgr, true);
+				return 0;
+			}
+		}
+	} else {
+		tonga_update_vce_dpm(hwmgr, &states);
+		tonga_enable_disable_vce_dpm(hwmgr, true);
+		return 0;
+	}
+
+	if (!data->vce_power_gated)
+		tonga_update_vce_dpm(hwmgr, &states);
+
+	return 0;
+}
+
+int tonga_phm_update_clock_gatings(struct pp_hwmgr *hwmgr,
+					const uint32_t *msg_id)
+{
+	PPSMC_Msg msg;
+	uint32_t value;
+
+	switch ((*msg_id & PP_GROUP_MASK) >> PP_GROUP_SHIFT) {
+	case PP_GROUP_GFX:
+		switch ((*msg_id & PP_BLOCK_MASK) >> PP_BLOCK_SHIFT) {
+		case PP_BLOCK_GFX_CG:
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+				  ? PPSMC_MSG_EnableClockGatingFeature
+				  : PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_GFX_CGCG_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			if (PP_STATE_SUPPORT_LS & *msg_id) {
+				msg = (*msg_id & PP_STATE_MASK) & PP_STATE_LS
+					? PPSMC_MSG_EnableClockGatingFeature
+					: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_GFX_CGLS_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		case PP_BLOCK_GFX_MG:
+			/* For GFX MGCG, there are three different ones;
+			 * CPF, RLC, and all others.  CPF MGCG will not be used for Tonga.
+			 * For GFX MGLS, Tonga will not support it.
+			 * */
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = (CG_RLC_MGCG_MASK | CG_GFX_OTHERS_MGCG_MASK);
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		default:
+			return -1;
+		}
+		break;
+
+	case PP_GROUP_SYS:
+		switch ((*msg_id & PP_BLOCK_MASK) >> PP_BLOCK_SHIFT) {
+		case PP_BLOCK_SYS_BIF:
+			if (PP_STATE_SUPPORT_LS & *msg_id) {
+				msg = (*msg_id & PP_STATE_MASK) & PP_STATE_LS
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_BIF_MGLS_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		case PP_BLOCK_SYS_MC:
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_MC_MGCG_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+
+			if (PP_STATE_SUPPORT_LS & *msg_id) {
+				msg = (*msg_id & PP_STATE_MASK) & PP_STATE_LS
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_MC_MGLS_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+
+			}
+			break;
+
+		case PP_BLOCK_SYS_HDP:
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+					? PPSMC_MSG_EnableClockGatingFeature
+					: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_HDP_MGCG_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+
+			if (PP_STATE_SUPPORT_LS & *msg_id) {
+				msg = (*msg_id & PP_STATE_MASK) & PP_STATE_LS
+					? PPSMC_MSG_EnableClockGatingFeature
+					: PPSMC_MSG_DisableClockGatingFeature;
+
+				value = CG_SYS_HDP_MGLS_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		case PP_BLOCK_SYS_SDMA:
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_SDMA_MGCG_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+
+			if (PP_STATE_SUPPORT_LS & *msg_id) {
+				msg = (*msg_id & PP_STATE_MASK) & PP_STATE_LS
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+
+				value = CG_SYS_SDMA_MGLS_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		case PP_BLOCK_SYS_ROM:
+			if (PP_STATE_SUPPORT_CG & *msg_id) {
+				msg = ((*msg_id & PP_STATE_MASK) & PP_STATE_CG)
+				? PPSMC_MSG_EnableClockGatingFeature
+				: PPSMC_MSG_DisableClockGatingFeature;
+				value = CG_SYS_ROM_MASK;
+
+				if (0 != smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, msg, value))
+					return -1;
+			}
+			break;
+
+		default:
+			return -1;
+
+		}
+		break;
+
+	default:
+		return -1;
+
+	}
+
+	return 0;
+}

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.h

+/*
+ * Copyright 2015 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.
+ *
+ */
+
+#ifndef _TONGA_CLOCK_POWER_GATING_H_
+#define _TONGA_CLOCK_POWER_GATING_H_
+
+#include "tonga_hwmgr.h"
+#include "pp_asicblocks.h"
+
+extern int tonga_phm_set_asic_block_gating(struct pp_hwmgr *hwmgr, enum PHM_AsicBlock block, enum PHM_ClockGateSetting gating);
+extern int tonga_phm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate);
+extern int tonga_phm_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate);
+extern int tonga_phm_powerdown_uvd(struct pp_hwmgr *hwmgr);
+extern int tonga_phm_disable_clock_power_gating(struct pp_hwmgr *hwmgr);
+extern int tonga_phm_update_clock_gatings(struct pp_hwmgr *hwmgr, const uint32_t *msg_id);
+#endif /* _TONGA_CLOCK_POWER_GATING_H_ */

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c

@@ -39,6 +39,7 @@
 #include "tonga_dyn_defaults.h"
 #include "smumgr.h"
 #include "tonga_smumgr.h"
+#include "tonga_clockpowergating.h"
 
 #include "smu/smu_7_1_2_d.h"
 #include "smu/smu_7_1_2_sh_mask.h"
@@ -5488,14 +5489,47 @@ static int tonga_generate_dpm_level_enable_mask(struct pp_hwmgr *hwmgr, const vo
 	return 0;
 }
 
-static int tonga_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable)
+int tonga_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable)
 {
-	return smum_send_msg_to_smc(hwmgr->smumgr, enable?
+	return smum_send_msg_to_smc(hwmgr->smumgr, enable ?
 				  (PPSMC_Msg)PPSMC_MSG_VCEDPM_Enable :
 				  (PPSMC_Msg)PPSMC_MSG_VCEDPM_Disable);
 }
 
-static int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input)
+int tonga_enable_disable_uvd_dpm(struct pp_hwmgr *hwmgr, bool enable)
+{
+	return smum_send_msg_to_smc(hwmgr->smumgr, enable ?
+				  (PPSMC_Msg)PPSMC_MSG_UVDDPM_Enable :
+				  (PPSMC_Msg)PPSMC_MSG_UVDDPM_Disable);
+}
+
+int tonga_update_uvd_dpm(struct pp_hwmgr *hwmgr, bool bgate)
+{
+	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+	uint32_t mm_boot_level_offset, mm_boot_level_value;
+	struct phm_ppt_v1_information *ptable_information = (struct phm_ppt_v1_information *)(hwmgr->pptable);
+
+	if (!bgate) {
+		data->smc_state_table.UvdBootLevel = (uint8_t) (ptable_information->mm_dep_table->count - 1);
+		mm_boot_level_offset = data->dpm_table_start + offsetof(SMU72_Discrete_DpmTable, UvdBootLevel);
+		mm_boot_level_offset /= 4;
+		mm_boot_level_offset *= 4;
+		mm_boot_level_value = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, mm_boot_level_offset);
+		mm_boot_level_value &= 0x00FFFFFF;
+		mm_boot_level_value |= data->smc_state_table.UvdBootLevel << 24;
+		cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, mm_boot_level_offset, mm_boot_level_value);
+
+		if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_UVDDPM) ||
+		    phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_StablePState))
+			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+						PPSMC_MSG_UVDDPM_SetEnabledMask,
+						(uint32_t)(1 << data->smc_state_table.UvdBootLevel));
+	}
+
+	return tonga_enable_disable_uvd_dpm(hwmgr, !bgate);
+}
+
+int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input)
 {
 	const struct phm_set_power_state_input *states = (const struct phm_set_power_state_input *)input;
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
@@ -5505,8 +5539,7 @@ static int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input)
 	uint32_t mm_boot_level_offset, mm_boot_level_value;
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
 
-	if(tonga_nps->vce_clocks.EVCLK >0 &&
-	(tonga_cps == NULL || tonga_cps->vce_clocks.EVCLK == 0)) {
+	if (tonga_nps->vce_clocks.EVCLK > 0 && (tonga_cps == NULL || tonga_cps->vce_clocks.EVCLK == 0)) {
 		data->smc_state_table.VceBootLevel = (uint8_t) (pptable_info->mm_dep_table->count - 1);
 
 		mm_boot_level_offset = data->dpm_table_start + offsetof(SMU72_Discrete_DpmTable, VceBootLevel);
@@ -5517,16 +5550,14 @@ static int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input)
 		mm_boot_level_value |= data->smc_state_table.VceBootLevel << 16;
 		cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, mm_boot_level_offset, mm_boot_level_value);
 
-		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_StablePState)) {
-				smum_send_msg_to_smc_with_parameter(
-							   hwmgr->smumgr,
-			(PPSMC_Msg)(PPSMC_MSG_VCEDPM_SetEnabledMask),
-			(uint32_t)1 << data->smc_state_table.VceBootLevel);
+		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_StablePState))
+			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+					PPSMC_MSG_VCEDPM_SetEnabledMask,
+				(uint32_t)(1 << data->smc_state_table.VceBootLevel));
 
 		tonga_enable_disable_vce_dpm(hwmgr, true);
 	} else if (tonga_nps->vce_clocks.EVCLK == 0 && tonga_cps != NULL && tonga_cps->vce_clocks.EVCLK > 0)
 		tonga_enable_disable_vce_dpm(hwmgr, false);
-	}
 
 	return 0;
 }
@@ -5783,6 +5814,10 @@ static const struct pp_hwmgr_func tonga_hwmgr_funcs = {
 	.get_pp_table_entry = tonga_get_pp_table_entry,
 	.get_num_of_pp_table_entries = tonga_get_number_of_powerplay_table_entries,
 	.print_current_perforce_level = tonga_print_current_perforce_level,
+	.powerdown_uvd = tonga_phm_powerdown_uvd,
+	.powergate_uvd = tonga_phm_powergate_uvd,
+	.powergate_vce = tonga_phm_powergate_vce,
+	.disable_clock_power_gating = tonga_phm_disable_clock_power_gating,
 	.notify_smc_display_config_after_ps_adjustment = tonga_notify_smc_display_config_after_ps_adjustment,
 	.display_config_changed = tonga_display_configuration_changed_task,
 };

drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.h

@@ -422,6 +422,10 @@ typedef struct tonga_hwmgr tonga_hwmgr;
 #define CONVERT_FROM_HOST_TO_SMC_US(X) ((X) = PP_HOST_TO_SMC_US(X))
 
 int tonga_hwmgr_init(struct pp_hwmgr *hwmgr);
+int tonga_update_vce_dpm(struct pp_hwmgr *hwmgr, const void *input);
+int tonga_update_uvd_dpm(struct pp_hwmgr *hwmgr, bool bgate);
+int tonga_enable_disable_uvd_dpm(struct pp_hwmgr *hwmgr, bool enable);
+int tonga_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable);
 
 #endif