drm/amd/powerplay: enable power containment features for tonga. (2a702ccd) · Commits · github.com / kvm-riscv / linux

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -4,7 +4,7 @@

		HARDWARE_MGR = hwmgr.o processpptables.o functiontables.o \
		hardwaremanager.o pp_acpi.o cz_hwmgr.o \
		cz_clockpowergating.o \
		cz_clockpowergating.o tonga_powertune.o\
		tonga_processpptables.o ppatomctrl.o \
		tonga_hwmgr.o pppcielanes.o tonga_thermal.o\
		fiji_powertune.o fiji_hwmgr.o tonga_clockpowergating.o \

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

+23 −1

Original line number	Diff line number	Diff line
		@@ -302,6 +302,8 @@ void tonga_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
		phm_cap_set(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_DisableMemoryTransition);

		tonga_initialize_power_tune_defaults(hwmgr);

		data->mclk_strobe_mode_threshold = 40000;
		data->mclk_stutter_mode_threshold = 30000;
		data->mclk_edc_enable_threshold = 40000;
		@@ -2479,7 +2481,7 @@ static int tonga_populate_single_graphic_level(struct pp_hwmgr *hwmgr, uint32_t
		graphic_level->VoltageDownHyst = 0;
		graphic_level->PowerThrottle = 0;

		threshold = engine_clock * data->fast_watemark_threshold / 100;
		threshold = engine_clock * data->fast_watermark_threshold / 100;
		/*
		*get the DAL clock. do it in funture.
		PECI_GetMinClockSettings(hwmgr->peci, &minClocks);
		@@ -2982,6 +2984,10 @@ int tonga_init_smc_table(struct pp_hwmgr *hwmgr)
		PP_ASSERT_WITH_CODE(0 == result,
		"Failed to initialize Boot Level!", return result;);

		result = tonga_populate_bapm_parameters_in_dpm_table(hwmgr);
		PP_ASSERT_WITH_CODE(result == 0,
		"Failed to populate BAPM Parameters!", return result);

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_ClockStretcher)) {
		result = tonga_populate_clock_stretcher_data_table(hwmgr);
		@@ -4370,6 +4376,10 @@ int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
		PP_ASSERT_WITH_CODE((0 == tmp_result),
		"Failed to initialize ARB table index!", result = tmp_result);

		tmp_result = tonga_populate_pm_fuses(hwmgr);
		PP_ASSERT_WITH_CODE((tmp_result == 0),
		"Failed to populate PM fuses!", result = tmp_result);

		tmp_result = tonga_populate_initial_mc_reg_table(hwmgr);
		PP_ASSERT_WITH_CODE((0 == tmp_result),
		"Failed to populate initialize MC Reg table!", result = tmp_result);
		@@ -4388,6 +4398,18 @@ int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
		PP_ASSERT_WITH_CODE((0 == tmp_result),
		"Failed to start DPM!", result = tmp_result);

		tmp_result = tonga_enable_smc_cac(hwmgr);
		PP_ASSERT_WITH_CODE((tmp_result == 0),
		"Failed to enable SMC CAC!", result = tmp_result);

		tmp_result = tonga_enable_power_containment(hwmgr);
		PP_ASSERT_WITH_CODE((tmp_result == 0),
		"Failed to enable power containment!", result = tmp_result);

		tmp_result = tonga_power_control_set_level(hwmgr);
		PP_ASSERT_WITH_CODE((tmp_result == 0),
		"Failed to power control set level!", result = tmp_result);

		return result;
		}

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

+8 −3

Original line number	Diff line number	Diff line
		@@ -300,6 +300,7 @@ struct tonga_hwmgr {
		bool dll_defaule_on;
		bool performance_request_registered;


		/* ----------------- Low Power Features ---------------------*/
		phw_tonga_bacos bacos;
		phw_tonga_ulv_parm ulv;
		@@ -314,10 +315,14 @@ struct tonga_hwmgr {
		bool enable_tdc_limit_feature;
		bool enable_pkg_pwr_tracking_feature;
		bool disable_uvd_power_tune_feature;
		phw_tonga_pt_defaults *power_tune_defaults;
		struct tonga_pt_defaults *power_tune_defaults;
		SMU72_Discrete_PmFuses power_tune_table;
		uint32_t ul_dte_tj_offset; /* Fudge factor in DPM table to correct HW DTE errors */
		uint32_t fast_watemark_threshold; /* use fast watermark if clock is equal or above this. In percentage of the target high sclk. */
		uint32_t dte_tj_offset; /* Fudge factor in DPM table to correct HW DTE errors */
		uint32_t fast_watermark_threshold; /* use fast watermark if clock is equal or above this. In percentage of the target high sclk. */


		bool enable_dte_feature;


		/* ----------------- Phase Shedding ---------------------*/
		bool vddc_phase_shed_control;

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

0 → 100644

+498 −0

Original line number	Diff line number	Diff line
		/*
		* 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 "smumgr.h"
		#include "tonga_hwmgr.h"
		#include "tonga_powertune.h"
		#include "tonga_smumgr.h"
		#include "smu72_discrete.h"
		#include "pp_debug.h"
		#include "tonga_ppsmc.h"

		#define VOLTAGE_SCALE 4
		#define POWERTUNE_DEFAULT_SET_MAX 1

		struct tonga_pt_defaults tonga_power_tune_data_set_array[POWERTUNE_DEFAULT_SET_MAX] = {
		/* sviLoadLIneEn, SviLoadLineVddC, TDC_VDDC_ThrottleReleaseLimitPerc, TDC_MAWt, TdcWaterfallCtl, DTEAmbientTempBase, DisplayCac, BAPM_TEMP_GRADIENT */
		{1, 0xF, 0xFD, 0x19, 5, 45, 0, 0xB0000,
		{0x79, 0x253, 0x25D, 0xAE, 0x72, 0x80, 0x83, 0x86, 0x6F, 0xC8, 0xC9, 0xC9, 0x2F, 0x4D, 0x61},
		{0x17C, 0x172, 0x180, 0x1BC, 0x1B3, 0x1BD, 0x206, 0x200, 0x203, 0x25D, 0x25A, 0x255, 0x2C3, 0x2C5, 0x2B4 } },
		};

		void tonga_initialize_power_tune_defaults(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr tonga_hwmgr = (struct tonga_hwmgr )(hwmgr->backend);
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		uint32_t tmp = 0;

		if (table_info &&
		table_info->cac_dtp_table->usPowerTuneDataSetID <= POWERTUNE_DEFAULT_SET_MAX &&
		table_info->cac_dtp_table->usPowerTuneDataSetID)
		tonga_hwmgr->power_tune_defaults =
		&tonga_power_tune_data_set_array
		[table_info->cac_dtp_table->usPowerTuneDataSetID - 1];
		else
		tonga_hwmgr->power_tune_defaults = &tonga_power_tune_data_set_array[0];

		/* Assume disabled */
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment);
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_CAC);
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_SQRamping);
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_DBRamping);
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_TDRamping);
		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_TCPRamping);

		tonga_hwmgr->dte_tj_offset = tmp;

		if (!tmp) {
		phm_cap_set(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_CAC);

		tonga_hwmgr->fast_watermark_threshold = 100;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment)) {
		tmp = 1;
		tonga_hwmgr->enable_dte_feature = tmp ? false : true;
		tonga_hwmgr->enable_tdc_limit_feature = tmp ? true : false;
		tonga_hwmgr->enable_pkg_pwr_tracking_feature = tmp ? true : false;
		}
		}
		}


		int tonga_populate_bapm_parameters_in_dpm_table(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		struct tonga_pt_defaults *defaults = data->power_tune_defaults;
		SMU72_Discrete_DpmTable *dpm_table = &(data->smc_state_table);
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		struct phm_cac_tdp_table *cac_dtp_table = table_info->cac_dtp_table;
		int i, j, k;
		uint16_t *pdef1;
		uint16_t *pdef2;


		/* TDP number of fraction bits are changed from 8 to 7 for Fiji
		* as requested by SMC team
		*/
		dpm_table->DefaultTdp = PP_HOST_TO_SMC_US(
		(uint16_t)(cac_dtp_table->usTDP * 256));
		dpm_table->TargetTdp = PP_HOST_TO_SMC_US(
		(uint16_t)(cac_dtp_table->usConfigurableTDP * 256));

		PP_ASSERT_WITH_CODE(cac_dtp_table->usTargetOperatingTemp <= 255,
		"Target Operating Temp is out of Range!",
		);

		dpm_table->GpuTjMax = (uint8_t)(cac_dtp_table->usTargetOperatingTemp);
		dpm_table->GpuTjHyst = 8;

		dpm_table->DTEAmbientTempBase = defaults->dte_ambient_temp_base;

		dpm_table->BAPM_TEMP_GRADIENT = PP_HOST_TO_SMC_UL(defaults->bamp_temp_gradient);
		pdef1 = defaults->bapmti_r;
		pdef2 = defaults->bapmti_rc;

		for (i = 0; i < SMU72_DTE_ITERATIONS; i++) {
		for (j = 0; j < SMU72_DTE_SOURCES; j++) {
		for (k = 0; k < SMU72_DTE_SINKS; k++) {
		dpm_table->BAPMTI_R[i][j][k] = PP_HOST_TO_SMC_US(*pdef1);
		dpm_table->BAPMTI_RC[i][j][k] = PP_HOST_TO_SMC_US(*pdef2);
		pdef1++;
		pdef2++;
		}
		}
		}

		return 0;
		}

		static int tonga_populate_svi_load_line(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		const struct tonga_pt_defaults *defaults = data->power_tune_defaults;

		data->power_tune_table.SviLoadLineEn = defaults->svi_load_line_en;
		data->power_tune_table.SviLoadLineVddC = defaults->svi_load_line_vddC;
		data->power_tune_table.SviLoadLineTrimVddC = 3;
		data->power_tune_table.SviLoadLineOffsetVddC = 0;

		return 0;
		}

		static int tonga_populate_tdc_limit(struct pp_hwmgr *hwmgr)
		{
		uint16_t tdc_limit;
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		const struct tonga_pt_defaults *defaults = data->power_tune_defaults;

		/* TDC number of fraction bits are changed from 8 to 7
		* for Fiji as requested by SMC team
		*/
		tdc_limit = (uint16_t)(table_info->cac_dtp_table->usTDC * 256);
		data->power_tune_table.TDC_VDDC_PkgLimit =
		CONVERT_FROM_HOST_TO_SMC_US(tdc_limit);
		data->power_tune_table.TDC_VDDC_ThrottleReleaseLimitPerc =
		defaults->tdc_vddc_throttle_release_limit_perc;
		data->power_tune_table.TDC_MAWt = defaults->tdc_mawt;

		return 0;
		}

		static int tonga_populate_dw8(struct pp_hwmgr *hwmgr, uint32_t fuse_table_offset)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		const struct tonga_pt_defaults *defaults = data->power_tune_defaults;
		uint32_t temp;

		if (tonga_read_smc_sram_dword(hwmgr->smumgr,
		fuse_table_offset +
		offsetof(SMU72_Discrete_PmFuses, TdcWaterfallCtl),
		(uint32_t *)&temp, data->sram_end))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to read PmFuses.DW6 (SviLoadLineEn) from SMC Failed!",
		return -EINVAL);
		else
		data->power_tune_table.TdcWaterfallCtl = defaults->tdc_waterfall_ctl;

		return 0;
		}

		static int tonga_populate_temperature_scaler(struct pp_hwmgr *hwmgr)
		{
		int i;
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);

		/* Currently not used. Set all to zero. */
		for (i = 0; i < 16; i++)
		data->power_tune_table.LPMLTemperatureScaler[i] = 0;

		return 0;
		}

		static int tonga_populate_fuzzy_fan(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);

		if ((hwmgr->thermal_controller.advanceFanControlParameters.
		usFanOutputSensitivity & (1 << 15)) \|\|
		(hwmgr->thermal_controller.advanceFanControlParameters.usFanOutputSensitivity == 0))
		hwmgr->thermal_controller.advanceFanControlParameters.
		usFanOutputSensitivity = hwmgr->thermal_controller.
		advanceFanControlParameters.usDefaultFanOutputSensitivity;

		data->power_tune_table.FuzzyFan_PwmSetDelta =
		PP_HOST_TO_SMC_US(hwmgr->thermal_controller.
		advanceFanControlParameters.usFanOutputSensitivity);
		return 0;
		}

		static int tonga_populate_gnb_lpml(struct pp_hwmgr *hwmgr)
		{
		int i;
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);

		/* Currently not used. Set all to zero. */
		for (i = 0; i < 16; i++)
		data->power_tune_table.GnbLPML[i] = 0;

		return 0;
		}

		static int tonga_min_max_vgnb_lpml_id_from_bapm_vddc(struct pp_hwmgr *hwmgr)
		{
		return 0;
		}

		static int tonga_populate_bapm_vddc_base_leakage_sidd(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		uint16_t hi_sidd = data->power_tune_table.BapmVddCBaseLeakageHiSidd;
		uint16_t lo_sidd = data->power_tune_table.BapmVddCBaseLeakageLoSidd;
		struct phm_cac_tdp_table *cac_table = table_info->cac_dtp_table;

		hi_sidd = (uint16_t)(cac_table->usHighCACLeakage / 100 * 256);
		lo_sidd = (uint16_t)(cac_table->usLowCACLeakage / 100 * 256);

		data->power_tune_table.BapmVddCBaseLeakageHiSidd =
		CONVERT_FROM_HOST_TO_SMC_US(hi_sidd);
		data->power_tune_table.BapmVddCBaseLeakageLoSidd =
		CONVERT_FROM_HOST_TO_SMC_US(lo_sidd);

		return 0;
		}

		int tonga_populate_pm_fuses(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		uint32_t pm_fuse_table_offset;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment)) {
		if (tonga_read_smc_sram_dword(hwmgr->smumgr,
		SMU72_FIRMWARE_HEADER_LOCATION +
		offsetof(SMU72_Firmware_Header, PmFuseTable),
		&pm_fuse_table_offset, data->sram_end))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to get pm_fuse_table_offset Failed!",
		return -EINVAL);

		/* DW6 */
		if (tonga_populate_svi_load_line(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate SviLoadLine Failed!",
		return -EINVAL);
		/* DW7 */
		if (tonga_populate_tdc_limit(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate TDCLimit Failed!", return -EINVAL);
		/* DW8 */
		if (tonga_populate_dw8(hwmgr, pm_fuse_table_offset))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate TdcWaterfallCtl Failed !",
		return -EINVAL);

		/* DW9-DW12 */
		if (tonga_populate_temperature_scaler(hwmgr) != 0)
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate LPMLTemperatureScaler Failed!",
		return -EINVAL);

		/* DW13-DW14 */
		if (tonga_populate_fuzzy_fan(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate Fuzzy Fan Control parameters Failed!",
		return -EINVAL);

		/* DW15-DW18 */
		if (tonga_populate_gnb_lpml(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate GnbLPML Failed!",
		return -EINVAL);

		/* DW19 */
		if (tonga_min_max_vgnb_lpml_id_from_bapm_vddc(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate GnbLPML Min and Max Vid Failed!",
		return -EINVAL);

		/* DW20 */
		if (tonga_populate_bapm_vddc_base_leakage_sidd(hwmgr))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to populate BapmVddCBaseLeakage Hi and Lo Sidd Failed!",
		return -EINVAL);

		if (tonga_copy_bytes_to_smc(hwmgr->smumgr, pm_fuse_table_offset,
		(uint8_t *)&data->power_tune_table,
		sizeof(struct SMU72_Discrete_PmFuses), data->sram_end))
		PP_ASSERT_WITH_CODE(false,
		"Attempt to download PmFuseTable Failed!",
		return -EINVAL);
		}
		return 0;
		}

		int tonga_enable_smc_cac(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		int result = 0;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_CAC)) {
		int smc_result;

		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_EnableCac));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to enable CAC in SMC.", result = -1);

		data->cac_enabled = (smc_result == 0) ? true : false;
		}
		return result;
		}

		int tonga_disable_smc_cac(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		int result = 0;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_CAC) && data->cac_enabled) {
		int smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_DisableCac));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to disable CAC in SMC.", result = -1);

		data->cac_enabled = false;
		}
		return result;
		}

		int tonga_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);

		if (data->power_containment_features &
		POWERCONTAINMENT_FEATURE_PkgPwrLimit)
		return smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
		PPSMC_MSG_PkgPwrSetLimit, n);
		return 0;
		}

		static int tonga_set_overdriver_target_tdp(struct pp_hwmgr *pHwMgr, uint32_t target_tdp)
		{
		return smum_send_msg_to_smc_with_parameter(pHwMgr->smumgr,
		PPSMC_MSG_OverDriveSetTargetTdp, target_tdp);
		}

		int tonga_enable_power_containment(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		int smc_result;
		int result = 0;

		data->power_containment_features = 0;
		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment)) {
		if (data->enable_dte_feature) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_EnableDTE));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to enable DTE in SMC.", result = -1;);
		if (smc_result == 0)
		data->power_containment_features \|= POWERCONTAINMENT_FEATURE_DTE;
		}

		if (data->enable_tdc_limit_feature) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_TDCLimitEnable));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to enable TDCLimit in SMC.", result = -1;);
		if (smc_result == 0)
		data->power_containment_features \|=
		POWERCONTAINMENT_FEATURE_TDCLimit;
		}

		if (data->enable_pkg_pwr_tracking_feature) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_PkgPwrLimitEnable));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to enable PkgPwrTracking in SMC.", result = -1;);
		if (smc_result == 0) {
		struct phm_cac_tdp_table *cac_table =
		table_info->cac_dtp_table;
		uint32_t default_limit =
		(uint32_t)(cac_table->usMaximumPowerDeliveryLimit * 256);

		data->power_containment_features \|=
		POWERCONTAINMENT_FEATURE_PkgPwrLimit;

		if (tonga_set_power_limit(hwmgr, default_limit))
		printk(KERN_ERR "Failed to set Default Power Limit in SMC!");
		}
		}
		}
		return result;
		}

		int tonga_disable_power_containment(struct pp_hwmgr *hwmgr)
		{
		struct tonga_hwmgr data = (struct tonga_hwmgr )(hwmgr->backend);
		int result = 0;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment) &&
		data->power_containment_features) {
		int smc_result;

		if (data->power_containment_features &
		POWERCONTAINMENT_FEATURE_TDCLimit) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_TDCLimitDisable));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to disable TDCLimit in SMC.",
		result = smc_result);
		}

		if (data->power_containment_features &
		POWERCONTAINMENT_FEATURE_DTE) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_DisableDTE));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to disable DTE in SMC.",
		result = smc_result);
		}

		if (data->power_containment_features &
		POWERCONTAINMENT_FEATURE_PkgPwrLimit) {
		smc_result = smum_send_msg_to_smc(hwmgr->smumgr,
		(uint16_t)(PPSMC_MSG_PkgPwrLimitDisable));
		PP_ASSERT_WITH_CODE((smc_result == 0),
		"Failed to disable PkgPwrTracking in SMC.",
		result = smc_result);
		}
		data->power_containment_features = 0;
		}

		return result;
		}

		int tonga_power_control_set_level(struct pp_hwmgr *hwmgr)
		{
		struct phm_ppt_v1_information *table_info =
		(struct phm_ppt_v1_information *)(hwmgr->pptable);
		struct phm_cac_tdp_table *cac_table = table_info->cac_dtp_table;
		int adjust_percent, target_tdp;
		int result = 0;

		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
		PHM_PlatformCaps_PowerContainment)) {
		/* adjustment percentage has already been validated */
		adjust_percent = hwmgr->platform_descriptor.TDPAdjustmentPolarity ?
		hwmgr->platform_descriptor.TDPAdjustment :
		(-1 * hwmgr->platform_descriptor.TDPAdjustment);
		/* SMC requested that target_tdp to be 7 bit fraction in DPM table
		* but message to be 8 bit fraction for messages
		*/
		target_tdp = ((100 + adjust_percent) * (int)(cac_table->usTDP * 256)) / 100;
		result = tonga_set_overdriver_target_tdp(hwmgr, (uint32_t)target_tdp);
		}

		return result;
		}

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

+18 −4

Original line number	Diff line number	Diff line
		@@ -34,21 +34,24 @@ enum _phw_tonga_ptc_config_reg_type {
		};
		typedef enum _phw_tonga_ptc_config_reg_type phw_tonga_ptc_config_reg_type;

		/* PowerContainment Features */
		#define POWERCONTAINMENT_FEATURE_DTE 0x00000001


		/* PowerContainment Features */
		#define POWERCONTAINMENT_FEATURE_BAPM 0x00000001
		#define POWERCONTAINMENT_FEATURE_TDCLimit 0x00000002
		#define POWERCONTAINMENT_FEATURE_PkgPwrLimit 0x00000004

		struct _phw_tonga_pt_config_reg {
		struct tonga_pt_config_reg {
		uint32_t Offset;
		uint32_t Mask;
		uint32_t Shift;
		uint32_t Value;
		phw_tonga_ptc_config_reg_type Type;
		};
		typedef struct _phw_tonga_pt_config_reg phw_tonga_pt_config_reg;

		struct _phw_tonga_pt_defaults {
		struct tonga_pt_defaults {
		uint8_t svi_load_line_en;
		uint8_t svi_load_line_vddC;
		uint8_t tdc_vddc_throttle_release_limit_perc;
		@@ -60,7 +63,18 @@ struct _phw_tonga_pt_defaults {
		uint16_t bapmti_r[SMU72_DTE_ITERATIONS * SMU72_DTE_SOURCES * SMU72_DTE_SINKS];
		uint16_t bapmti_rc[SMU72_DTE_ITERATIONS * SMU72_DTE_SOURCES * SMU72_DTE_SINKS];
		};
		typedef struct _phw_tonga_pt_defaults phw_tonga_pt_defaults;



		void tonga_initialize_power_tune_defaults(struct pp_hwmgr *hwmgr);
		int tonga_populate_bapm_parameters_in_dpm_table(struct pp_hwmgr *hwmgr);
		int tonga_populate_pm_fuses(struct pp_hwmgr *hwmgr);
		int tonga_enable_smc_cac(struct pp_hwmgr *hwmgr);
		int tonga_disable_smc_cac(struct pp_hwmgr *hwmgr);
		int tonga_enable_power_containment(struct pp_hwmgr *hwmgr);
		int tonga_disable_power_containment(struct pp_hwmgr *hwmgr);
		int tonga_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n);
		int tonga_power_control_set_level(struct pp_hwmgr *hwmgr);

		#endif