/*
 * 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 <linux/module.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <asm/div64.h>
#include "linux/delay.h"
#include "pp_acpi.h"
#include "pp_debug.h"
#include "ppatomctrl.h"
#include "atombios.h"
#include "pptable_v1_0.h"
#include "pppcielanes.h"
#include "amd_pcie_helpers.h"
#include "hardwaremanager.h"
#include "process_pptables_v1_0.h"
#include "cgs_common.h"

#include "smu7_common.h"

#include "hwmgr.h"
#include "smu7_hwmgr.h"
#include "smu7_powertune.h"
#include "smu7_dyn_defaults.h"
#include "smu7_thermal.h"
#include "smu7_clockpowergating.h"
#include "processpptables.h"

#define MC_CG_ARB_FREQ_F0           0x0a
#define MC_CG_ARB_FREQ_F1           0x0b
#define MC_CG_ARB_FREQ_F2           0x0c
#define MC_CG_ARB_FREQ_F3           0x0d

#define MC_CG_SEQ_DRAMCONF_S0       0x05
#define MC_CG_SEQ_DRAMCONF_S1       0x06
#define MC_CG_SEQ_YCLK_SUSPEND      0x04
#define MC_CG_SEQ_YCLK_RESUME       0x0a

#define SMC_CG_IND_START            0xc0030000
#define SMC_CG_IND_END              0xc0040000

#define VOLTAGE_SCALE               4
#define VOLTAGE_VID_OFFSET_SCALE1   625
#define VOLTAGE_VID_OFFSET_SCALE2   100

#define MEM_FREQ_LOW_LATENCY        25000
#define MEM_FREQ_HIGH_LATENCY       80000

#define MEM_LATENCY_HIGH            45
#define MEM_LATENCY_LOW             35
#define MEM_LATENCY_ERR             0xFFFF

#define MC_SEQ_MISC0_GDDR5_SHIFT 28
#define MC_SEQ_MISC0_GDDR5_MASK  0xf0000000
#define MC_SEQ_MISC0_GDDR5_VALUE 5

#define PCIE_BUS_CLK                10000
#define TCLK                        (PCIE_BUS_CLK / 10)


/** Values for the CG_THERMAL_CTRL::DPM_EVENT_SRC field. */
enum DPM_EVENT_SRC {
        DPM_EVENT_SRC_ANALOG = 0,
        DPM_EVENT_SRC_EXTERNAL = 1,
        DPM_EVENT_SRC_DIGITAL = 2,
        DPM_EVENT_SRC_ANALOG_OR_EXTERNAL = 3,
        DPM_EVENT_SRC_DIGITAL_OR_EXTERNAL = 4
};

static const unsigned long PhwVIslands_Magic = (unsigned long)(PHM_VIslands_Magic);

struct smu7_power_state *cast_phw_smu7_power_state(
                                  struct pp_hw_power_state *hw_ps)
{
        PP_ASSERT_WITH_CODE((PhwVIslands_Magic == hw_ps->magic),
                                "Invalid Powerstate Type!",
                                 return NULL);

        return (struct smu7_power_state *)hw_ps;
}

const struct smu7_power_state *cast_const_phw_smu7_power_state(
                                 const struct pp_hw_power_state *hw_ps)
{
        PP_ASSERT_WITH_CODE((PhwVIslands_Magic == hw_ps->magic),
                                "Invalid Powerstate Type!",
                                 return NULL);

        return (const struct smu7_power_state *)hw_ps;
}

/**
 * Find the MC microcode version and store it in the HwMgr struct
 *
 * @param    hwmgr  the address of the powerplay hardware manager.
 * @return   always 0
 */
int smu7_get_mc_microcode_version (struct pp_hwmgr *hwmgr)
{
        cgs_write_register(hwmgr->device, mmMC_SEQ_IO_DEBUG_INDEX, 0x9F);

        hwmgr->microcode_version_info.MC = cgs_read_register(hwmgr->device, mmMC_SEQ_IO_DEBUG_DATA);

        return 0;
}

uint16_t smu7_get_current_pcie_speed(struct pp_hwmgr *hwmgr)
{
        uint32_t speedCntl = 0;

        /* mmPCIE_PORT_INDEX rename as mmPCIE_INDEX */
        speedCntl = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__PCIE,
                        ixPCIE_LC_SPEED_CNTL);
        return((uint16_t)PHM_GET_FIELD(speedCntl,
                        PCIE_LC_SPEED_CNTL, LC_CURRENT_DATA_RATE));
}

int smu7_get_current_pcie_lane_number(struct pp_hwmgr *hwmgr)
{
        uint32_t link_width;

        /* mmPCIE_PORT_INDEX rename as mmPCIE_INDEX */
        link_width = PHM_READ_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__PCIE,
                        PCIE_LC_LINK_WIDTH_CNTL, LC_LINK_WIDTH_RD);

        PP_ASSERT_WITH_CODE((7 >= link_width),
                        "Invalid PCIe lane width!", return 0);

        return decode_pcie_lane_width(link_width);
}

/**
* Enable voltage control
*
* @param    pHwMgr  the address of the powerplay hardware manager.
* @return   always PP_Result_OK
*/
int smu7_enable_smc_voltage_controller(struct pp_hwmgr *hwmgr)
{
        if (hwmgr->feature_mask & PP_SMC_VOLTAGE_CONTROL_MASK)
                smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_Voltage_Cntl_Enable);

        return 0;
}

/**
* Checks if we want to support voltage control
*
* @param    hwmgr  the address of the powerplay hardware manager.
*/
static bool smu7_voltage_control(const struct pp_hwmgr *hwmgr)
{
        const struct smu7_hwmgr *data =
                        (const struct smu7_hwmgr *)(hwmgr->backend);

        return (SMU7_VOLTAGE_CONTROL_NONE != data->voltage_control);
}

/**
* Enable voltage control
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always 0
*/
static int smu7_enable_voltage_control(struct pp_hwmgr *hwmgr)
{
        /* enable voltage control */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        GENERAL_PWRMGT, VOLT_PWRMGT_EN, 1);

        return 0;
}

static int phm_get_svi2_voltage_table_v0(pp_atomctrl_voltage_table *voltage_table,
                struct phm_clock_voltage_dependency_table *voltage_dependency_table
                )
{
        uint32_t i;

        PP_ASSERT_WITH_CODE((NULL != voltage_table),
                        "Voltage Dependency Table empty.", return -EINVAL;);

        voltage_table->mask_low = 0;
        voltage_table->phase_delay = 0;
        voltage_table->count = voltage_dependency_table->count;

        for (i = 0; i < voltage_dependency_table->count; i++) {
                voltage_table->entries[i].value =
                        voltage_dependency_table->entries[i].v;
                voltage_table->entries[i].smio_low = 0;
        }

        return 0;
}


/**
* Create Voltage Tables.
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always 0
*/
static int smu7_construct_voltage_tables(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)hwmgr->pptable;
        int result = 0;
        uint32_t tmp;

        if (SMU7_VOLTAGE_CONTROL_BY_GPIO == data->mvdd_control) {
                result = atomctrl_get_voltage_table_v3(hwmgr,
                                VOLTAGE_TYPE_MVDDC, VOLTAGE_OBJ_GPIO_LUT,
                                &(data->mvdd_voltage_table));
                PP_ASSERT_WITH_CODE((0 == result),
                                "Failed to retrieve MVDD table.",
                                return result);
        } else if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->mvdd_control) {
                if (hwmgr->pp_table_version == PP_TABLE_V1)
                        result = phm_get_svi2_mvdd_voltage_table(&(data->mvdd_voltage_table),
                                        table_info->vdd_dep_on_mclk);
                else if (hwmgr->pp_table_version == PP_TABLE_V0)
                        result = phm_get_svi2_voltage_table_v0(&(data->mvdd_voltage_table),
                                        hwmgr->dyn_state.mvdd_dependency_on_mclk);

                PP_ASSERT_WITH_CODE((0 == result),
                                "Failed to retrieve SVI2 MVDD table from dependancy table.",
                                return result;);
        }

        if (SMU7_VOLTAGE_CONTROL_BY_GPIO == data->vddci_control) {
                result = atomctrl_get_voltage_table_v3(hwmgr,
                                VOLTAGE_TYPE_VDDCI, VOLTAGE_OBJ_GPIO_LUT,
                                &(data->vddci_voltage_table));
                PP_ASSERT_WITH_CODE((0 == result),
                                "Failed to retrieve VDDCI table.",
                                return result);
        } else if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->vddci_control) {
                if (hwmgr->pp_table_version == PP_TABLE_V1)
                        result = phm_get_svi2_vddci_voltage_table(&(data->vddci_voltage_table),
                                        table_info->vdd_dep_on_mclk);
                else if (hwmgr->pp_table_version == PP_TABLE_V0)
                        result = phm_get_svi2_voltage_table_v0(&(data->vddci_voltage_table),
                                        hwmgr->dyn_state.vddci_dependency_on_mclk);
                PP_ASSERT_WITH_CODE((0 == result),
                                "Failed to retrieve SVI2 VDDCI table from dependancy table.",
                                return result);
        }

        if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->vdd_gfx_control) {
                /* VDDGFX has only SVI2 voltage control */
                result = phm_get_svi2_vdd_voltage_table(&(data->vddgfx_voltage_table),
                                        table_info->vddgfx_lookup_table);
                PP_ASSERT_WITH_CODE((0 == result),
                        "Failed to retrieve SVI2 VDDGFX table from lookup table.", return result;);
        }


        if (SMU7_VOLTAGE_CONTROL_BY_GPIO == data->voltage_control) {
                result = atomctrl_get_voltage_table_v3(hwmgr,
                                        VOLTAGE_TYPE_VDDC, VOLTAGE_OBJ_GPIO_LUT,
                                        &data->vddc_voltage_table);
                PP_ASSERT_WITH_CODE((0 == result),
                        "Failed to retrieve VDDC table.", return result;);
        } else if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->voltage_control) {

                if (hwmgr->pp_table_version == PP_TABLE_V0)
                        result = phm_get_svi2_voltage_table_v0(&data->vddc_voltage_table,
                                        hwmgr->dyn_state.vddc_dependency_on_mclk);
                else if (hwmgr->pp_table_version == PP_TABLE_V1)
                        result = phm_get_svi2_vdd_voltage_table(&(data->vddc_voltage_table),
                                table_info->vddc_lookup_table);

                PP_ASSERT_WITH_CODE((0 == result),
                        "Failed to retrieve SVI2 VDDC table from dependancy table.", return result;);
        }

        tmp = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_VDDC);
        PP_ASSERT_WITH_CODE(
                        (data->vddc_voltage_table.count <= tmp),
                "Too many voltage values for VDDC. Trimming to fit state table.",
                        phm_trim_voltage_table_to_fit_state_table(tmp,
                                                &(data->vddc_voltage_table)));

        tmp = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_VDDGFX);
        PP_ASSERT_WITH_CODE(
                        (data->vddgfx_voltage_table.count <= tmp),
                "Too many voltage values for VDDC. Trimming to fit state table.",
                        phm_trim_voltage_table_to_fit_state_table(tmp,
                                                &(data->vddgfx_voltage_table)));

        tmp = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_VDDCI);
        PP_ASSERT_WITH_CODE(
                        (data->vddci_voltage_table.count <= tmp),
                "Too many voltage values for VDDCI. Trimming to fit state table.",
                        phm_trim_voltage_table_to_fit_state_table(tmp,
                                        &(data->vddci_voltage_table)));

        tmp = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_MVDD);
        PP_ASSERT_WITH_CODE(
                        (data->mvdd_voltage_table.count <= tmp),
                "Too many voltage values for MVDD. Trimming to fit state table.",
                        phm_trim_voltage_table_to_fit_state_table(tmp,
                                                &(data->mvdd_voltage_table)));

        return 0;
}

/**
* Programs static screed detection parameters
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always 0
*/
static int smu7_program_static_screen_threshold_parameters(
                                                        struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /* Set static screen threshold unit */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        CG_STATIC_SCREEN_PARAMETER, STATIC_SCREEN_THRESHOLD_UNIT,
                        data->static_screen_threshold_unit);
        /* Set static screen threshold */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        CG_STATIC_SCREEN_PARAMETER, STATIC_SCREEN_THRESHOLD,
                        data->static_screen_threshold);

        return 0;
}

/**
* Setup display gap for glitch free memory clock switching.
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always  0
*/
static int smu7_enable_display_gap(struct pp_hwmgr *hwmgr)
{
        uint32_t display_gap =
                        cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                                        ixCG_DISPLAY_GAP_CNTL);

        display_gap = PHM_SET_FIELD(display_gap, CG_DISPLAY_GAP_CNTL,
                        DISP_GAP, DISPLAY_GAP_IGNORE);

        display_gap = PHM_SET_FIELD(display_gap, CG_DISPLAY_GAP_CNTL,
                        DISP_GAP_MCHG, DISPLAY_GAP_VBLANK);

        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_DISPLAY_GAP_CNTL, display_gap);

        return 0;
}

/**
* Programs activity state transition voting clients
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always  0
*/
static int smu7_program_voting_clients(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /* Clear reset for voting clients before enabling DPM */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        SCLK_PWRMGT_CNTL, RESET_SCLK_CNT, 0);
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        SCLK_PWRMGT_CNTL, RESET_BUSY_CNT, 0);

        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_0, data->voting_rights_clients0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_1, data->voting_rights_clients1);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_2, data->voting_rights_clients2);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_3, data->voting_rights_clients3);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_4, data->voting_rights_clients4);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_5, data->voting_rights_clients5);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_6, data->voting_rights_clients6);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_7, data->voting_rights_clients7);

        return 0;
}

static int smu7_clear_voting_clients(struct pp_hwmgr *hwmgr)
{
        /* Reset voting clients before disabling DPM */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        SCLK_PWRMGT_CNTL, RESET_SCLK_CNT, 1);
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        SCLK_PWRMGT_CNTL, RESET_BUSY_CNT, 1);

        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_0, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_1, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_2, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_3, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_4, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_5, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_6, 0);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        ixCG_FREQ_TRAN_VOTING_7, 0);

        return 0;
}

/* Copy one arb setting to another and then switch the active set.
 * arb_src and arb_dest is one of the MC_CG_ARB_FREQ_Fx constants.
 */
static int smu7_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
                uint32_t arb_src, uint32_t arb_dest)
{
        uint32_t mc_arb_dram_timing;
        uint32_t mc_arb_dram_timing2;
        uint32_t burst_time;
        uint32_t mc_cg_config;

        switch (arb_src) {
        case MC_CG_ARB_FREQ_F0:
                mc_arb_dram_timing  = cgs_read_register(hwmgr->device, mmMC_ARB_DRAM_TIMING);
                mc_arb_dram_timing2 = cgs_read_register(hwmgr->device, mmMC_ARB_DRAM_TIMING2);
                burst_time = PHM_READ_FIELD(hwmgr->device, MC_ARB_BURST_TIME, STATE0);
                break;
        case MC_CG_ARB_FREQ_F1:
                mc_arb_dram_timing  = cgs_read_register(hwmgr->device, mmMC_ARB_DRAM_TIMING_1);
                mc_arb_dram_timing2 = cgs_read_register(hwmgr->device, mmMC_ARB_DRAM_TIMING2_1);
                burst_time = PHM_READ_FIELD(hwmgr->device, MC_ARB_BURST_TIME, STATE1);
                break;
        default:
                return -EINVAL;
        }

        switch (arb_dest) {
        case MC_CG_ARB_FREQ_F0:
                cgs_write_register(hwmgr->device, mmMC_ARB_DRAM_TIMING, mc_arb_dram_timing);
                cgs_write_register(hwmgr->device, mmMC_ARB_DRAM_TIMING2, mc_arb_dram_timing2);
                PHM_WRITE_FIELD(hwmgr->device, MC_ARB_BURST_TIME, STATE0, burst_time);
                break;
        case MC_CG_ARB_FREQ_F1:
                cgs_write_register(hwmgr->device, mmMC_ARB_DRAM_TIMING_1, mc_arb_dram_timing);
                cgs_write_register(hwmgr->device, mmMC_ARB_DRAM_TIMING2_1, mc_arb_dram_timing2);
                PHM_WRITE_FIELD(hwmgr->device, MC_ARB_BURST_TIME, STATE1, burst_time);
                break;
        default:
                return -EINVAL;
        }

        mc_cg_config = cgs_read_register(hwmgr->device, mmMC_CG_CONFIG);
        mc_cg_config |= 0x0000000F;
        cgs_write_register(hwmgr->device, mmMC_CG_CONFIG, mc_cg_config);
        PHM_WRITE_FIELD(hwmgr->device, MC_ARB_CG, CG_ARB_REQ, arb_dest);

        return 0;
}

static int smu7_reset_to_default(struct pp_hwmgr *hwmgr)
{
        return smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_ResetToDefaults);
}

/**
* Initial switch from ARB F0->F1
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always 0
* This function is to be called from the SetPowerState table.
*/
static int smu7_initial_switch_from_arbf0_to_f1(struct pp_hwmgr *hwmgr)
{
        return smu7_copy_and_switch_arb_sets(hwmgr,
                        MC_CG_ARB_FREQ_F0, MC_CG_ARB_FREQ_F1);
}

static int smu7_force_switch_to_arbf0(struct pp_hwmgr *hwmgr)
{
        uint32_t tmp;

        tmp = (cgs_read_ind_register(hwmgr->device,
                        CGS_IND_REG__SMC, ixSMC_SCRATCH9) &
                        0x0000ff00) >> 8;

        if (tmp == MC_CG_ARB_FREQ_F0)
                return 0;

        return smu7_copy_and_switch_arb_sets(hwmgr,
                        tmp, MC_CG_ARB_FREQ_F0);
}

static int smu7_setup_default_pcie_table(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);
        struct phm_ppt_v1_pcie_table *pcie_table = NULL;

        uint32_t i, max_entry;
        uint32_t tmp;

        PP_ASSERT_WITH_CODE((data->use_pcie_performance_levels ||
                        data->use_pcie_power_saving_levels), "No pcie performance levels!",
                        return -EINVAL);

        if (table_info != NULL)
                pcie_table = table_info->pcie_table;

        if (data->use_pcie_performance_levels &&
                        !data->use_pcie_power_saving_levels) {
                data->pcie_gen_power_saving = data->pcie_gen_performance;
                data->pcie_lane_power_saving = data->pcie_lane_performance;
        } else if (!data->use_pcie_performance_levels &&
                        data->use_pcie_power_saving_levels) {
                data->pcie_gen_performance = data->pcie_gen_power_saving;
                data->pcie_lane_performance = data->pcie_lane_power_saving;
        }
        tmp = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_LINK);
        phm_reset_single_dpm_table(&data->dpm_table.pcie_speed_table,
                                        tmp,
                                        MAX_REGULAR_DPM_NUMBER);

        if (pcie_table != NULL) {
                /* max_entry is used to make sure we reserve one PCIE level
                 * for boot level (fix for A+A PSPP issue).
                 * If PCIE table from PPTable have ULV entry + 8 entries,
                 * then ignore the last entry.*/
                max_entry = (tmp < pcie_table->count) ? tmp : pcie_table->count;
                for (i = 1; i < max_entry; i++) {
                        phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, i - 1,
                                        get_pcie_gen_support(data->pcie_gen_cap,
                                                        pcie_table->entries[i].gen_speed),
                                        get_pcie_lane_support(data->pcie_lane_cap,
                                                        pcie_table->entries[i].lane_width));
                }
                data->dpm_table.pcie_speed_table.count = max_entry - 1;
                smum_update_smc_table(hwmgr, SMU_BIF_TABLE);
        } else {
                /* Hardcode Pcie Table */
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 0,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Min_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 1,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Min_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 2,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Max_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 3,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Max_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 4,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Max_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));
                phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table, 5,
                                get_pcie_gen_support(data->pcie_gen_cap,
                                                PP_Max_PCIEGen),
                                get_pcie_lane_support(data->pcie_lane_cap,
                                                PP_Max_PCIELane));

                data->dpm_table.pcie_speed_table.count = 6;
        }
        /* Populate last level for boot PCIE level, but do not increment count. */
        phm_setup_pcie_table_entry(&data->dpm_table.pcie_speed_table,
                        data->dpm_table.pcie_speed_table.count,
                        get_pcie_gen_support(data->pcie_gen_cap,
                                        PP_Min_PCIEGen),
                        get_pcie_lane_support(data->pcie_lane_cap,
                                        PP_Max_PCIELane));

        return 0;
}

static int smu7_reset_dpm_tables(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        memset(&(data->dpm_table), 0x00, sizeof(data->dpm_table));

        phm_reset_single_dpm_table(
                        &data->dpm_table.sclk_table,
                                smum_get_mac_definition(hwmgr->smumgr,
                                        SMU_MAX_LEVELS_GRAPHICS),
                                        MAX_REGULAR_DPM_NUMBER);
        phm_reset_single_dpm_table(
                        &data->dpm_table.mclk_table,
                        smum_get_mac_definition(hwmgr->smumgr,
                                SMU_MAX_LEVELS_MEMORY), MAX_REGULAR_DPM_NUMBER);

        phm_reset_single_dpm_table(
                        &data->dpm_table.vddc_table,
                                smum_get_mac_definition(hwmgr->smumgr,
                                        SMU_MAX_LEVELS_VDDC),
                                        MAX_REGULAR_DPM_NUMBER);
        phm_reset_single_dpm_table(
                        &data->dpm_table.vddci_table,
                        smum_get_mac_definition(hwmgr->smumgr,
                                SMU_MAX_LEVELS_VDDCI), MAX_REGULAR_DPM_NUMBER);

        phm_reset_single_dpm_table(
                        &data->dpm_table.mvdd_table,
                                smum_get_mac_definition(hwmgr->smumgr,
                                        SMU_MAX_LEVELS_MVDD),
                                        MAX_REGULAR_DPM_NUMBER);
        return 0;
}
/*
 * This function is to initialize all DPM state tables
 * for SMU7 based on the dependency table.
 * Dynamic state patching function will then trim these
 * state tables to the allowed range based
 * on the power policy or external client requests,
 * such as UVD request, etc.
 */

static int smu7_setup_dpm_tables_v0(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_clock_voltage_dependency_table *allowed_vdd_sclk_table =
                hwmgr->dyn_state.vddc_dependency_on_sclk;
        struct phm_clock_voltage_dependency_table *allowed_vdd_mclk_table =
                hwmgr->dyn_state.vddc_dependency_on_mclk;
        struct phm_cac_leakage_table *std_voltage_table =
                hwmgr->dyn_state.cac_leakage_table;
        uint32_t i;

        PP_ASSERT_WITH_CODE(allowed_vdd_sclk_table != NULL,
                "SCLK dependency table is missing. This table is mandatory", return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_vdd_sclk_table->count >= 1,
                "SCLK dependency table has to have is missing. This table is mandatory", return -EINVAL);

        PP_ASSERT_WITH_CODE(allowed_vdd_mclk_table != NULL,
                "MCLK dependency table is missing. This table is mandatory", return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_vdd_mclk_table->count >= 1,
                "VMCLK dependency table has to have is missing. This table is mandatory", return -EINVAL);


        /* Initialize Sclk DPM table based on allow Sclk values*/
        data->dpm_table.sclk_table.count = 0;

        for (i = 0; i < allowed_vdd_sclk_table->count; i++) {
                if (i == 0 || data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count-1].value !=
                                allowed_vdd_sclk_table->entries[i].clk) {
                        data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count].value =
                                allowed_vdd_sclk_table->entries[i].clk;
                        data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count].enabled = 1; /*(i==0) ? 1 : 0; to do */
                        data->dpm_table.sclk_table.count++;
                }
        }

        PP_ASSERT_WITH_CODE(allowed_vdd_mclk_table != NULL,
                "MCLK dependency table is missing. This table is mandatory", return -EINVAL);
        /* Initialize Mclk DPM table based on allow Mclk values */
        data->dpm_table.mclk_table.count = 0;
        for (i = 0; i < allowed_vdd_mclk_table->count; i++) {
                if (i == 0 || data->dpm_table.mclk_table.dpm_levels[data->dpm_table.mclk_table.count-1].value !=
                        allowed_vdd_mclk_table->entries[i].clk) {
                        data->dpm_table.mclk_table.dpm_levels[data->dpm_table.mclk_table.count].value =
                                allowed_vdd_mclk_table->entries[i].clk;
                        data->dpm_table.mclk_table.dpm_levels[data->dpm_table.mclk_table.count].enabled = 1; /*(i==0) ? 1 : 0; */
                        data->dpm_table.mclk_table.count++;
                }
        }

        /* Initialize Vddc DPM table based on allow Vddc values.  And populate corresponding std values. */
        for (i = 0; i < allowed_vdd_sclk_table->count; i++) {
                data->dpm_table.vddc_table.dpm_levels[i].value = allowed_vdd_mclk_table->entries[i].v;
                data->dpm_table.vddc_table.dpm_levels[i].param1 = std_voltage_table->entries[i].Leakage;
                /* param1 is for corresponding std voltage */
                data->dpm_table.vddc_table.dpm_levels[i].enabled = 1;
        }

        data->dpm_table.vddc_table.count = allowed_vdd_sclk_table->count;
        allowed_vdd_mclk_table = hwmgr->dyn_state.vddci_dependency_on_mclk;

        if (NULL != allowed_vdd_mclk_table) {
                /* Initialize Vddci DPM table based on allow Mclk values */
                for (i = 0; i < allowed_vdd_mclk_table->count; i++) {
                        data->dpm_table.vddci_table.dpm_levels[i].value = allowed_vdd_mclk_table->entries[i].v;
                        data->dpm_table.vddci_table.dpm_levels[i].enabled = 1;
                }
                data->dpm_table.vddci_table.count = allowed_vdd_mclk_table->count;
        }

        allowed_vdd_mclk_table = hwmgr->dyn_state.mvdd_dependency_on_mclk;

        if (NULL != allowed_vdd_mclk_table) {
                /*
                 * Initialize MVDD DPM table based on allow Mclk
                 * values
                 */
                for (i = 0; i < allowed_vdd_mclk_table->count; i++) {
                        data->dpm_table.mvdd_table.dpm_levels[i].value = allowed_vdd_mclk_table->entries[i].v;
                        data->dpm_table.mvdd_table.dpm_levels[i].enabled = 1;
                }
                data->dpm_table.mvdd_table.count = allowed_vdd_mclk_table->count;
        }

        return 0;
}

static int smu7_setup_dpm_tables_v1(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);
        uint32_t i;

        struct phm_ppt_v1_clock_voltage_dependency_table *dep_sclk_table;
        struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table;

        if (table_info == NULL)
                return -EINVAL;

        dep_sclk_table = table_info->vdd_dep_on_sclk;
        dep_mclk_table = table_info->vdd_dep_on_mclk;

        PP_ASSERT_WITH_CODE(dep_sclk_table != NULL,
                        "SCLK dependency table is missing.",
                        return -EINVAL);
        PP_ASSERT_WITH_CODE(dep_sclk_table->count >= 1,
                        "SCLK dependency table count is 0.",
                        return -EINVAL);

        PP_ASSERT_WITH_CODE(dep_mclk_table != NULL,
                        "MCLK dependency table is missing.",
                        return -EINVAL);
        PP_ASSERT_WITH_CODE(dep_mclk_table->count >= 1,
                        "MCLK dependency table count is 0",
                        return -EINVAL);

        /* Initialize Sclk DPM table based on allow Sclk values */
        data->dpm_table.sclk_table.count = 0;
        for (i = 0; i < dep_sclk_table->count; i++) {
                if (i == 0 || data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count - 1].value !=
                                                dep_sclk_table->entries[i].clk) {

                        data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count].value =
                                        dep_sclk_table->entries[i].clk;

                        data->dpm_table.sclk_table.dpm_levels[data->dpm_table.sclk_table.count].enabled =
                                        (i == 0) ? true : false;
                        data->dpm_table.sclk_table.count++;
                }
        }

        /* Initialize Mclk DPM table based on allow Mclk values */
        data->dpm_table.mclk_table.count = 0;
        for (i = 0; i < dep_mclk_table->count; i++) {
                if (i == 0 || data->dpm_table.mclk_table.dpm_levels
                                [data->dpm_table.mclk_table.count - 1].value !=
                                                dep_mclk_table->entries[i].clk) {
                        data->dpm_table.mclk_table.dpm_levels[data->dpm_table.mclk_table.count].value =
                                                        dep_mclk_table->entries[i].clk;
                        data->dpm_table.mclk_table.dpm_levels[data->dpm_table.mclk_table.count].enabled =
                                                        (i == 0) ? true : false;
                        data->dpm_table.mclk_table.count++;
                }
        }

        return 0;
}

int smu7_setup_default_dpm_tables(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        smu7_reset_dpm_tables(hwmgr);

        if (hwmgr->pp_table_version == PP_TABLE_V1)
                smu7_setup_dpm_tables_v1(hwmgr);
        else if (hwmgr->pp_table_version == PP_TABLE_V0)
                smu7_setup_dpm_tables_v0(hwmgr);

        smu7_setup_default_pcie_table(hwmgr);

        /* save a copy of the default DPM table */
        memcpy(&(data->golden_dpm_table), &(data->dpm_table),
                        sizeof(struct smu7_dpm_table));
        return 0;
}

uint32_t smu7_get_xclk(struct pp_hwmgr *hwmgr)
{
        uint32_t reference_clock, tmp;
        struct cgs_display_info info = {0};
        struct cgs_mode_info mode_info;

        info.mode_info = &mode_info;

        tmp = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_CLKPIN_CNTL_2, MUX_TCLK_TO_XCLK);

        if (tmp)
                return TCLK;

        cgs_get_active_displays_info(hwmgr->device, &info);
        reference_clock = mode_info.ref_clock;

        tmp = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_CLKPIN_CNTL, XTALIN_DIVIDE);

        if (0 != tmp)
                return reference_clock / 4;

        return reference_clock;
}

static int smu7_enable_vrhot_gpio_interrupt(struct pp_hwmgr *hwmgr)
{

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_RegulatorHot))
                return smum_send_msg_to_smc(hwmgr->smumgr,
                                PPSMC_MSG_EnableVRHotGPIOInterrupt);

        return 0;
}

static int smu7_enable_sclk_control(struct pp_hwmgr *hwmgr)
{
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, SCLK_PWRMGT_CNTL,
                        SCLK_PWRMGT_OFF, 0);
        return 0;
}

static int smu7_enable_ulv(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (data->ulv_supported)
                return smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_EnableULV);

        return 0;
}

static int smu7_disable_ulv(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (data->ulv_supported)
                return smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_DisableULV);

        return 0;
}

static int smu7_enable_deep_sleep_master_switch(struct pp_hwmgr *hwmgr)
{
        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_SclkDeepSleep)) {
                if (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_MASTER_DeepSleep_ON))
                        PP_ASSERT_WITH_CODE(false,
                                        "Attempt to enable Master Deep Sleep switch failed!",
                                        return -EINVAL);
        } else {
                if (smum_send_msg_to_smc(hwmgr->smumgr,
                                PPSMC_MSG_MASTER_DeepSleep_OFF)) {
                        PP_ASSERT_WITH_CODE(false,
                                        "Attempt to disable Master Deep Sleep switch failed!",
                                        return -EINVAL);
                }
        }

        return 0;
}

static int smu7_disable_deep_sleep_master_switch(struct pp_hwmgr *hwmgr)
{
        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_SclkDeepSleep)) {
                if (smum_send_msg_to_smc(hwmgr->smumgr,
                                PPSMC_MSG_MASTER_DeepSleep_OFF)) {
                        PP_ASSERT_WITH_CODE(false,
                                        "Attempt to disable Master Deep Sleep switch failed!",
                                        return -EINVAL);
                }
        }

        return 0;
}

static int smu7_disable_handshake_uvd(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        uint32_t soft_register_value = 0;
        uint32_t handshake_disables_offset = data->soft_regs_start
                                + smum_get_offsetof(hwmgr->smumgr,
                                        SMU_SoftRegisters, HandshakeDisables);

        soft_register_value = cgs_read_ind_register(hwmgr->device,
                                CGS_IND_REG__SMC, handshake_disables_offset);
        soft_register_value |= smum_get_mac_definition(hwmgr->smumgr,
                                        SMU_UVD_MCLK_HANDSHAKE_DISABLE);
        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        handshake_disables_offset, soft_register_value);
        return 0;
}

static int smu7_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /* enable SCLK dpm */
        if (!data->sclk_dpm_key_disabled)
                PP_ASSERT_WITH_CODE(
                (0 == smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_DPM_Enable)),
                "Failed to enable SCLK DPM during DPM Start Function!",
                return -EINVAL);

        /* enable MCLK dpm */
        if (0 == data->mclk_dpm_key_disabled) {
                if (!(hwmgr->feature_mask & PP_UVD_HANDSHAKE_MASK))
                        smu7_disable_handshake_uvd(hwmgr);
                PP_ASSERT_WITH_CODE(
                                (0 == smum_send_msg_to_smc(hwmgr->smumgr,
                                                PPSMC_MSG_MCLKDPM_Enable)),
                                "Failed to enable MCLK DPM during DPM Start Function!",
                                return -EINVAL);

                PHM_WRITE_FIELD(hwmgr->device, MC_SEQ_CNTL_3, CAC_EN, 0x1);

                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_MC0_CNTL, 0x5);
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_MC1_CNTL, 0x5);
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_CPL_CNTL, 0x100005);
                udelay(10);
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_MC0_CNTL, 0x400005);
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_MC1_CNTL, 0x400005);
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixLCAC_CPL_CNTL, 0x500005);
        }

        return 0;
}

static int smu7_start_dpm(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /*enable general power management */

        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT,
                        GLOBAL_PWRMGT_EN, 1);

        /* enable sclk deep sleep */

        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, SCLK_PWRMGT_CNTL,
                        DYNAMIC_PM_EN, 1);

        /* prepare for PCIE DPM */

        cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
                        data->soft_regs_start +
                        smum_get_offsetof(hwmgr->smumgr, SMU_SoftRegisters,
                                                VoltageChangeTimeout), 0x1000);
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__PCIE,
                        SWRST_COMMAND_1, RESETLC, 0x0);

        PP_ASSERT_WITH_CODE(
                        (0 == smum_send_msg_to_smc(hwmgr->smumgr,
                                        PPSMC_MSG_Voltage_Cntl_Enable)),
                        "Failed to enable voltage DPM during DPM Start Function!",
                        return -EINVAL);

        if (smu7_enable_sclk_mclk_dpm(hwmgr)) {
                printk(KERN_ERR "Failed to enable Sclk DPM and Mclk DPM!");
                return -EINVAL;
        }

        /* enable PCIE dpm */
        if (0 == data->pcie_dpm_key_disabled) {
                PP_ASSERT_WITH_CODE(
                                (0 == smum_send_msg_to_smc(hwmgr->smumgr,
                                                PPSMC_MSG_PCIeDPM_Enable)),
                                "Failed to enable pcie DPM during DPM Start Function!",
                                return -EINVAL);
        }

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                                PHM_PlatformCaps_Falcon_QuickTransition)) {
                PP_ASSERT_WITH_CODE((0 == smum_send_msg_to_smc(hwmgr->smumgr,
                                PPSMC_MSG_EnableACDCGPIOInterrupt)),
                                "Failed to enable AC DC GPIO Interrupt!",
                                );
        }

        return 0;
}

static int smu7_disable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /* disable SCLK dpm */
        if (!data->sclk_dpm_key_disabled) {
                PP_ASSERT_WITH_CODE(true == smum_is_dpm_running(hwmgr),
                                "Trying to disable SCLK DPM when DPM is disabled",
                                return 0);
                smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_DPM_Disable);
        }

        /* disable MCLK dpm */
        if (!data->mclk_dpm_key_disabled) {
                PP_ASSERT_WITH_CODE(true == smum_is_dpm_running(hwmgr),
                                "Trying to disable MCLK DPM when DPM is disabled",
                                return 0);
                smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_MCLKDPM_Disable);
        }

        return 0;
}

static int smu7_stop_dpm(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        /* disable general power management */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT,
                        GLOBAL_PWRMGT_EN, 0);
        /* disable sclk deep sleep */
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, SCLK_PWRMGT_CNTL,
                        DYNAMIC_PM_EN, 0);

        /* disable PCIE dpm */
        if (!data->pcie_dpm_key_disabled) {
                PP_ASSERT_WITH_CODE(
                                (smum_send_msg_to_smc(hwmgr->smumgr,
                                                PPSMC_MSG_PCIeDPM_Disable) == 0),
                                "Failed to disable pcie DPM during DPM Stop Function!",
                                return -EINVAL);
        }

        smu7_disable_sclk_mclk_dpm(hwmgr);

        PP_ASSERT_WITH_CODE(true == smum_is_dpm_running(hwmgr),
                        "Trying to disable voltage DPM when DPM is disabled",
                        return 0);

        smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_Voltage_Cntl_Disable);

        return 0;
}

static void smu7_set_dpm_event_sources(struct pp_hwmgr *hwmgr, uint32_t sources)
{
        bool protection;
        enum DPM_EVENT_SRC src;

        switch (sources) {
        default:
                printk(KERN_ERR "Unknown throttling event sources.");
                /* fall through */
        case 0:
                protection = false;
                /* src is unused */
                break;
        case (1 << PHM_AutoThrottleSource_Thermal):
                protection = true;
                src = DPM_EVENT_SRC_DIGITAL;
                break;
        case (1 << PHM_AutoThrottleSource_External):
                protection = true;
                src = DPM_EVENT_SRC_EXTERNAL;
                break;
        case (1 << PHM_AutoThrottleSource_External) |
                        (1 << PHM_AutoThrottleSource_Thermal):
                protection = true;
                src = DPM_EVENT_SRC_DIGITAL_OR_EXTERNAL;
                break;
        }
        /* Order matters - don't enable thermal protection for the wrong source. */
        if (protection) {
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_CTRL,
                                DPM_EVENT_SRC, src);
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT,
                                THERMAL_PROTECTION_DIS,
                                !phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                                                PHM_PlatformCaps_ThermalController));
        } else
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT,
                                THERMAL_PROTECTION_DIS, 1);
}

static int smu7_enable_auto_throttle_source(struct pp_hwmgr *hwmgr,
                PHM_AutoThrottleSource source)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (!(data->active_auto_throttle_sources & (1 << source))) {
                data->active_auto_throttle_sources |= 1 << source;
                smu7_set_dpm_event_sources(hwmgr, data->active_auto_throttle_sources);
        }
        return 0;
}

static int smu7_enable_thermal_auto_throttle(struct pp_hwmgr *hwmgr)
{
        return smu7_enable_auto_throttle_source(hwmgr, PHM_AutoThrottleSource_Thermal);
}

static int smu7_disable_auto_throttle_source(struct pp_hwmgr *hwmgr,
                PHM_AutoThrottleSource source)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (data->active_auto_throttle_sources & (1 << source)) {
                data->active_auto_throttle_sources &= ~(1 << source);
                smu7_set_dpm_event_sources(hwmgr, data->active_auto_throttle_sources);
        }
        return 0;
}

static int smu7_disable_thermal_auto_throttle(struct pp_hwmgr *hwmgr)
{
        return smu7_disable_auto_throttle_source(hwmgr, PHM_AutoThrottleSource_Thermal);
}

int smu7_pcie_performance_request(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        data->pcie_performance_request = true;

        return 0;
}

int smu7_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
{
        int tmp_result = 0;
        int result = 0;

        tmp_result = (!smum_is_dpm_running(hwmgr)) ? 0 : -1;
        PP_ASSERT_WITH_CODE(tmp_result == 0,
                        "DPM is already running",
                        );

        if (smu7_voltage_control(hwmgr)) {
                tmp_result = smu7_enable_voltage_control(hwmgr);
                PP_ASSERT_WITH_CODE(tmp_result == 0,
                                "Failed to enable voltage control!",
                                result = tmp_result);

                tmp_result = smu7_construct_voltage_tables(hwmgr);
                PP_ASSERT_WITH_CODE((0 == tmp_result),
                                "Failed to contruct voltage tables!",
                                result = tmp_result);
        }
        smum_initialize_mc_reg_table(hwmgr);

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_EngineSpreadSpectrumSupport))
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                                GENERAL_PWRMGT, DYN_SPREAD_SPECTRUM_EN, 1);

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_ThermalController))
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                                GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, 0);

        tmp_result = smu7_program_static_screen_threshold_parameters(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to program static screen threshold parameters!",
                        result = tmp_result);

        tmp_result = smu7_enable_display_gap(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable display gap!", result = tmp_result);

        tmp_result = smu7_program_voting_clients(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to program voting clients!", result = tmp_result);

        tmp_result = smum_process_firmware_header(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to process firmware header!", result = tmp_result);

        tmp_result = smu7_initial_switch_from_arbf0_to_f1(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to initialize switch from ArbF0 to F1!",
                        result = tmp_result);

        result = smu7_setup_default_dpm_tables(hwmgr);
        PP_ASSERT_WITH_CODE(0 == result,
                        "Failed to setup default DPM tables!", return result);

        tmp_result = smum_init_smc_table(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to initialize SMC table!", result = tmp_result);

        tmp_result = smu7_enable_vrhot_gpio_interrupt(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable VR hot GPIO interrupt!", result = tmp_result);

        smum_send_msg_to_smc(hwmgr->smumgr, (PPSMC_Msg)PPSMC_NoDisplay);

        tmp_result = smu7_enable_sclk_control(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable SCLK control!", result = tmp_result);

        tmp_result = smu7_enable_smc_voltage_controller(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable voltage control!", result = tmp_result);

        tmp_result = smu7_enable_ulv(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable ULV!", result = tmp_result);

        tmp_result = smu7_enable_deep_sleep_master_switch(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable deep sleep master switch!", result = tmp_result);

        tmp_result = smu7_enable_didt_config(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to enable deep sleep master switch!", result = tmp_result);

        tmp_result = smu7_start_dpm(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to start DPM!", result = tmp_result);

        tmp_result = smu7_enable_smc_cac(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable SMC CAC!", result = tmp_result);

        tmp_result = smu7_enable_power_containment(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable power containment!", result = tmp_result);

        tmp_result = smu7_power_control_set_level(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to power control set level!", result = tmp_result);

        tmp_result = smu7_enable_thermal_auto_throttle(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "Failed to enable thermal auto throttle!", result = tmp_result);

        tmp_result = smu7_pcie_performance_request(hwmgr);
        PP_ASSERT_WITH_CODE((0 == tmp_result),
                        "pcie performance request failed!", result = tmp_result);

        return 0;
}

int smu7_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
{
        int tmp_result, result = 0;

        tmp_result = (smum_is_dpm_running(hwmgr)) ? 0 : -1;
        PP_ASSERT_WITH_CODE(tmp_result == 0,
                        "DPM is not running right now, no need to disable DPM!",
                        return 0);

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_ThermalController))
                PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                                GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, 1);

        tmp_result = smu7_disable_power_containment(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to disable power containment!", result = tmp_result);

        tmp_result = smu7_disable_smc_cac(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to disable SMC CAC!", result = tmp_result);

        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        CG_SPLL_SPREAD_SPECTRUM, SSEN, 0);
        PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
                        GENERAL_PWRMGT, DYN_SPREAD_SPECTRUM_EN, 0);

        tmp_result = smu7_disable_thermal_auto_throttle(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to disable thermal auto throttle!", result = tmp_result);

        if (1 == PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, FEATURE_STATUS, AVS_ON)) {
                PP_ASSERT_WITH_CODE((0 == smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_DisableAvfs)),
                                        "Failed to disable AVFS!",
                                        return -EINVAL);
        }

        tmp_result = smu7_stop_dpm(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to stop DPM!", result = tmp_result);

        tmp_result = smu7_disable_deep_sleep_master_switch(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to disable deep sleep master switch!", result = tmp_result);

        tmp_result = smu7_disable_ulv(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to disable ULV!", result = tmp_result);

        tmp_result = smu7_clear_voting_clients(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to clear voting clients!", result = tmp_result);

        tmp_result = smu7_reset_to_default(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to reset to default!", result = tmp_result);

        tmp_result = smu7_force_switch_to_arbf0(hwmgr);
        PP_ASSERT_WITH_CODE((tmp_result == 0),
                        "Failed to force to switch arbf0!", result = tmp_result);

        return result;
}

int smu7_reset_asic_tasks(struct pp_hwmgr *hwmgr)
{

        return 0;
}

static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);

        data->dll_default_on = false;
        data->mclk_dpm0_activity_target = 0xa;
        data->mclk_activity_target = SMU7_MCLK_TARGETACTIVITY_DFLT;
        data->vddc_vddgfx_delta = 300;
        data->static_screen_threshold = SMU7_STATICSCREENTHRESHOLD_DFLT;
        data->static_screen_threshold_unit = SMU7_STATICSCREENTHRESHOLDUNIT_DFLT;
        data->voting_rights_clients0 = SMU7_VOTINGRIGHTSCLIENTS_DFLT0;
        data->voting_rights_clients1 = SMU7_VOTINGRIGHTSCLIENTS_DFLT1;
        data->voting_rights_clients2 = SMU7_VOTINGRIGHTSCLIENTS_DFLT2;
        data->voting_rights_clients3 = SMU7_VOTINGRIGHTSCLIENTS_DFLT3;
        data->voting_rights_clients4 = SMU7_VOTINGRIGHTSCLIENTS_DFLT4;
        data->voting_rights_clients5 = SMU7_VOTINGRIGHTSCLIENTS_DFLT5;
        data->voting_rights_clients6 = SMU7_VOTINGRIGHTSCLIENTS_DFLT6;
        data->voting_rights_clients7 = SMU7_VOTINGRIGHTSCLIENTS_DFLT7;

        data->mclk_dpm_key_disabled = hwmgr->feature_mask & PP_MCLK_DPM_MASK ? false : true;
        data->sclk_dpm_key_disabled = hwmgr->feature_mask & PP_SCLK_DPM_MASK ? false : true;
        data->pcie_dpm_key_disabled = hwmgr->feature_mask & PP_PCIE_DPM_MASK ? false : true;
        /* need to set voltage control types before EVV patching */
        data->voltage_control = SMU7_VOLTAGE_CONTROL_NONE;
        data->vddci_control = SMU7_VOLTAGE_CONTROL_NONE;
        data->mvdd_control = SMU7_VOLTAGE_CONTROL_NONE;
        data->enable_tdc_limit_feature = true;
        data->enable_pkg_pwr_tracking_feature = true;
        data->force_pcie_gen = PP_PCIEGenInvalid;
        data->ulv_supported = hwmgr->feature_mask & PP_ULV_MASK ? true : false;

        data->fast_watermark_threshold = 100;
        if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                        VOLTAGE_TYPE_VDDC, VOLTAGE_OBJ_SVID2))
                data->voltage_control = SMU7_VOLTAGE_CONTROL_BY_SVID2;

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_ControlVDDGFX)) {
                if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                        VOLTAGE_TYPE_VDDGFX, VOLTAGE_OBJ_SVID2)) {
                        data->vdd_gfx_control = SMU7_VOLTAGE_CONTROL_BY_SVID2;
                }
        }

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_EnableMVDDControl)) {
                if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                                VOLTAGE_TYPE_MVDDC, VOLTAGE_OBJ_GPIO_LUT))
                        data->mvdd_control = SMU7_VOLTAGE_CONTROL_BY_GPIO;
                else if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                                VOLTAGE_TYPE_MVDDC, VOLTAGE_OBJ_SVID2))
                        data->mvdd_control = SMU7_VOLTAGE_CONTROL_BY_SVID2;
        }

        if (SMU7_VOLTAGE_CONTROL_NONE == data->vdd_gfx_control) {
                phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_ControlVDDGFX);
        }

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_ControlVDDCI)) {
                if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                                VOLTAGE_TYPE_VDDCI, VOLTAGE_OBJ_GPIO_LUT))
                        data->vddci_control = SMU7_VOLTAGE_CONTROL_BY_GPIO;
                else if (atomctrl_is_voltage_controled_by_gpio_v3(hwmgr,
                                VOLTAGE_TYPE_VDDCI, VOLTAGE_OBJ_SVID2))
                        data->vddci_control = SMU7_VOLTAGE_CONTROL_BY_SVID2;
        }

        if (data->mvdd_control == SMU7_VOLTAGE_CONTROL_NONE)
                phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
                                PHM_PlatformCaps_EnableMVDDControl);

        if (data->vddci_control == SMU7_VOLTAGE_CONTROL_NONE)
                phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
                                PHM_PlatformCaps_ControlVDDCI);

        if ((hwmgr->pp_table_version != PP_TABLE_V0)
                && (table_info->cac_dtp_table->usClockStretchAmount != 0))
                phm_cap_set(hwmgr->platform_descriptor.platformCaps,
                                        PHM_PlatformCaps_ClockStretcher);

        data->pcie_gen_performance.max = PP_PCIEGen1;
        data->pcie_gen_performance.min = PP_PCIEGen3;
        data->pcie_gen_power_saving.max = PP_PCIEGen1;
        data->pcie_gen_power_saving.min = PP_PCIEGen3;
        data->pcie_lane_performance.max = 0;
        data->pcie_lane_performance.min = 16;
        data->pcie_lane_power_saving.max = 0;
        data->pcie_lane_power_saving.min = 16;
}

/**
* Get Leakage VDDC based on leakage ID.
*
* @param    hwmgr  the address of the powerplay hardware manager.
* @return   always 0
*/
static int smu7_get_evv_voltages(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        uint16_t vv_id;
        uint16_t vddc = 0;
        uint16_t vddgfx = 0;
        uint16_t i, j;
        uint32_t sclk = 0;
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)hwmgr->pptable;
        struct phm_ppt_v1_clock_voltage_dependency_table *sclk_table = NULL;


        for (i = 0; i < SMU7_MAX_LEAKAGE_COUNT; i++) {
                vv_id = ATOM_VIRTUAL_VOLTAGE_ID0 + i;

                if (data->vdd_gfx_control == SMU7_VOLTAGE_CONTROL_BY_SVID2) {
                        if ((hwmgr->pp_table_version == PP_TABLE_V1)
                            && !phm_get_sclk_for_voltage_evv(hwmgr,
                                                table_info->vddgfx_lookup_table, vv_id, &sclk)) {
                                if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                                                        PHM_PlatformCaps_ClockStretcher)) {
                                        sclk_table = table_info->vdd_dep_on_sclk;

                                        for (j = 1; j < sclk_table->count; j++) {
                                                if (sclk_table->entries[j].clk == sclk &&
                                                                sclk_table->entries[j].cks_enable == 0) {
                                                        sclk += 5000;
                                                        break;
                                                }
                                        }
                                }
                                if (0 == atomctrl_get_voltage_evv_on_sclk
                                    (hwmgr, VOLTAGE_TYPE_VDDGFX, sclk,
                                     vv_id, &vddgfx)) {
                                        /* need to make sure vddgfx is less than 2v or else, it could burn the ASIC. */
                                        PP_ASSERT_WITH_CODE((vddgfx < 2000 && vddgfx != 0), "Invalid VDDGFX value!", return -EINVAL);

                                        /* the voltage should not be zero nor equal to leakage ID */
                                        if (vddgfx != 0 && vddgfx != vv_id) {
                                                data->vddcgfx_leakage.actual_voltage[data->vddcgfx_leakage.count] = vddgfx;
                                                data->vddcgfx_leakage.leakage_id[data->vddcgfx_leakage.count] = vv_id;
                                                data->vddcgfx_leakage.count++;
                                        }
                                } else {
                                        printk("Error retrieving EVV voltage value!\n");
                                }
                        }
                } else {
                        if ((hwmgr->pp_table_version == PP_TABLE_V0)
                                || !phm_get_sclk_for_voltage_evv(hwmgr,
                                        table_info->vddc_lookup_table, vv_id, &sclk)) {
                                if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                                                PHM_PlatformCaps_ClockStretcher)) {
                                        if (table_info == NULL)
                                                return -EINVAL;
                                        sclk_table = table_info->vdd_dep_on_sclk;

                                        for (j = 1; j < sclk_table->count; j++) {
                                                if (sclk_table->entries[j].clk == sclk &&
                                                                sclk_table->entries[j].cks_enable == 0) {
                                                        sclk += 5000;
                                                        break;
                                                }
                                        }
                                }

                                if (phm_get_voltage_evv_on_sclk(hwmgr,
                                                        VOLTAGE_TYPE_VDDC,
                                                        sclk, vv_id, &vddc) == 0) {
                                        if (vddc >= 2000 || vddc == 0)
                                                return -EINVAL;
                                } else {
                                        printk(KERN_WARNING "failed to retrieving EVV voltage!\n");
                                        continue;
                                }

                                /* the voltage should not be zero nor equal to leakage ID */
                                if (vddc != 0 && vddc != vv_id) {
                                        data->vddc_leakage.actual_voltage[data->vddc_leakage.count] = (uint16_t)(vddc);
                                        data->vddc_leakage.leakage_id[data->vddc_leakage.count] = vv_id;
                                        data->vddc_leakage.count++;
                                }
                        }
                }
        }

        return 0;
}

/**
 * Change virtual leakage voltage to actual value.
 *
 * @param     hwmgr  the address of the powerplay hardware manager.
 * @param     pointer to changing voltage
 * @param     pointer to leakage table
 */
static void smu7_patch_ppt_v1_with_vdd_leakage(struct pp_hwmgr *hwmgr,
                uint16_t *voltage, struct smu7_leakage_voltage *leakage_table)
{
        uint32_t index;

        /* search for leakage voltage ID 0xff01 ~ 0xff08 */
        for (index = 0; index < leakage_table->count; index++) {
                /* if this voltage matches a leakage voltage ID */
                /* patch with actual leakage voltage */
                if (leakage_table->leakage_id[index] == *voltage) {
                        *voltage = leakage_table->actual_voltage[index];
                        break;
                }
        }

        if (*voltage > ATOM_VIRTUAL_VOLTAGE_ID0)
                printk(KERN_ERR "Voltage value looks like a Leakage ID but it's not patched \n");
}

/**
* Patch voltage lookup table by EVV leakages.
*
* @param     hwmgr  the address of the powerplay hardware manager.
* @param     pointer to voltage lookup table
* @param     pointer to leakage table
* @return     always 0
*/
static int smu7_patch_lookup_table_with_leakage(struct pp_hwmgr *hwmgr,
                phm_ppt_v1_voltage_lookup_table *lookup_table,
                struct smu7_leakage_voltage *leakage_table)
{
        uint32_t i;

        for (i = 0; i < lookup_table->count; i++)
                smu7_patch_ppt_v1_with_vdd_leakage(hwmgr,
                                &lookup_table->entries[i].us_vdd, leakage_table);

        return 0;
}

static int smu7_patch_clock_voltage_limits_with_vddc_leakage(
                struct pp_hwmgr *hwmgr, struct smu7_leakage_voltage *leakage_table,
                uint16_t *vddc)
{
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);
        smu7_patch_ppt_v1_with_vdd_leakage(hwmgr, (uint16_t *)vddc, leakage_table);
        hwmgr->dyn_state.max_clock_voltage_on_dc.vddc =
                        table_info->max_clock_voltage_on_dc.vddc;
        return 0;
}

static int smu7_patch_voltage_dependency_tables_with_lookup_table(
                struct pp_hwmgr *hwmgr)
{
        uint8_t entry_id;
        uint8_t voltage_id;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);

        struct phm_ppt_v1_clock_voltage_dependency_table *sclk_table =
                        table_info->vdd_dep_on_sclk;
        struct phm_ppt_v1_clock_voltage_dependency_table *mclk_table =
                        table_info->vdd_dep_on_mclk;
        struct phm_ppt_v1_mm_clock_voltage_dependency_table *mm_table =
                        table_info->mm_dep_table;

        if (data->vdd_gfx_control == SMU7_VOLTAGE_CONTROL_BY_SVID2) {
                for (entry_id = 0; entry_id < sclk_table->count; ++entry_id) {
                        voltage_id = sclk_table->entries[entry_id].vddInd;
                        sclk_table->entries[entry_id].vddgfx =
                                table_info->vddgfx_lookup_table->entries[voltage_id].us_vdd;
                }
        } else {
                for (entry_id = 0; entry_id < sclk_table->count; ++entry_id) {
                        voltage_id = sclk_table->entries[entry_id].vddInd;
                        sclk_table->entries[entry_id].vddc =
                                table_info->vddc_lookup_table->entries[voltage_id].us_vdd;
                }
        }

        for (entry_id = 0; entry_id < mclk_table->count; ++entry_id) {
                voltage_id = mclk_table->entries[entry_id].vddInd;
                mclk_table->entries[entry_id].vddc =
                        table_info->vddc_lookup_table->entries[voltage_id].us_vdd;
        }

        for (entry_id = 0; entry_id < mm_table->count; ++entry_id) {
                voltage_id = mm_table->entries[entry_id].vddcInd;
                mm_table->entries[entry_id].vddc =
                        table_info->vddc_lookup_table->entries[voltage_id].us_vdd;
        }

        return 0;

}

static int phm_add_voltage(struct pp_hwmgr *hwmgr,
                        phm_ppt_v1_voltage_lookup_table *look_up_table,
                        phm_ppt_v1_voltage_lookup_record *record)
{
        uint32_t i;

        PP_ASSERT_WITH_CODE((NULL != look_up_table),
                "Lookup Table empty.", return -EINVAL);
        PP_ASSERT_WITH_CODE((0 != look_up_table->count),
                "Lookup Table empty.", return -EINVAL);

        i = smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_VDDGFX);
        PP_ASSERT_WITH_CODE((i >= look_up_table->count),
                "Lookup Table is full.", return -EINVAL);

        /* This is to avoid entering duplicate calculated records. */
        for (i = 0; i < look_up_table->count; i++) {
                if (look_up_table->entries[i].us_vdd == record->us_vdd) {
                        if (look_up_table->entries[i].us_calculated == 1)
                                return 0;
                        break;
                }
        }

        look_up_table->entries[i].us_calculated = 1;
        look_up_table->entries[i].us_vdd = record->us_vdd;
        look_up_table->entries[i].us_cac_low = record->us_cac_low;
        look_up_table->entries[i].us_cac_mid = record->us_cac_mid;
        look_up_table->entries[i].us_cac_high = record->us_cac_high;
        /* Only increment the count when we're appending, not replacing duplicate entry. */
        if (i == look_up_table->count)
                look_up_table->count++;

        return 0;
}


static int smu7_calc_voltage_dependency_tables(struct pp_hwmgr *hwmgr)
{
        uint8_t entry_id;
        struct phm_ppt_v1_voltage_lookup_record v_record;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);

        phm_ppt_v1_clock_voltage_dependency_table *sclk_table = pptable_info->vdd_dep_on_sclk;
        phm_ppt_v1_clock_voltage_dependency_table *mclk_table = pptable_info->vdd_dep_on_mclk;

        if (data->vdd_gfx_control == SMU7_VOLTAGE_CONTROL_BY_SVID2) {
                for (entry_id = 0; entry_id < sclk_table->count; ++entry_id) {
                        if (sclk_table->entries[entry_id].vdd_offset & (1 << 15))
                                v_record.us_vdd = sclk_table->entries[entry_id].vddgfx +
                                        sclk_table->entries[entry_id].vdd_offset - 0xFFFF;
                        else
                                v_record.us_vdd = sclk_table->entries[entry_id].vddgfx +
                                        sclk_table->entries[entry_id].vdd_offset;

                        sclk_table->entries[entry_id].vddc =
                                v_record.us_cac_low = v_record.us_cac_mid =
                                v_record.us_cac_high = v_record.us_vdd;

                        phm_add_voltage(hwmgr, pptable_info->vddc_lookup_table, &v_record);
                }

                for (entry_id = 0; entry_id < mclk_table->count; ++entry_id) {
                        if (mclk_table->entries[entry_id].vdd_offset & (1 << 15))
                                v_record.us_vdd = mclk_table->entries[entry_id].vddc +
                                        mclk_table->entries[entry_id].vdd_offset - 0xFFFF;
                        else
                                v_record.us_vdd = mclk_table->entries[entry_id].vddc +
                                        mclk_table->entries[entry_id].vdd_offset;

                        mclk_table->entries[entry_id].vddgfx = v_record.us_cac_low =
                                v_record.us_cac_mid = v_record.us_cac_high = v_record.us_vdd;
                        phm_add_voltage(hwmgr, pptable_info->vddgfx_lookup_table, &v_record);
                }
        }
        return 0;
}

static int smu7_calc_mm_voltage_dependency_table(struct pp_hwmgr *hwmgr)
{
        uint8_t entry_id;
        struct phm_ppt_v1_voltage_lookup_record v_record;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
        phm_ppt_v1_mm_clock_voltage_dependency_table *mm_table = pptable_info->mm_dep_table;

        if (data->vdd_gfx_control == SMU7_VOLTAGE_CONTROL_BY_SVID2) {
                for (entry_id = 0; entry_id < mm_table->count; entry_id++) {
                        if (mm_table->entries[entry_id].vddgfx_offset & (1 << 15))
                                v_record.us_vdd = mm_table->entries[entry_id].vddc +
                                        mm_table->entries[entry_id].vddgfx_offset - 0xFFFF;
                        else
                                v_record.us_vdd = mm_table->entries[entry_id].vddc +
                                        mm_table->entries[entry_id].vddgfx_offset;

                        /* Add the calculated VDDGFX to the VDDGFX lookup table */
                        mm_table->entries[entry_id].vddgfx = v_record.us_cac_low =
                                v_record.us_cac_mid = v_record.us_cac_high = v_record.us_vdd;
                        phm_add_voltage(hwmgr, pptable_info->vddgfx_lookup_table, &v_record);
                }
        }
        return 0;
}

static int smu7_sort_lookup_table(struct pp_hwmgr *hwmgr,
                struct phm_ppt_v1_voltage_lookup_table *lookup_table)
{
        uint32_t table_size, i, j;
        struct phm_ppt_v1_voltage_lookup_record tmp_voltage_lookup_record;
        table_size = lookup_table->count;

        PP_ASSERT_WITH_CODE(0 != lookup_table->count,
                "Lookup table is empty", return -EINVAL);

        /* Sorting voltages */
        for (i = 0; i < table_size - 1; i++) {
                for (j = i + 1; j > 0; j--) {
                        if (lookup_table->entries[j].us_vdd <
                                        lookup_table->entries[j - 1].us_vdd) {
                                tmp_voltage_lookup_record = lookup_table->entries[j - 1];
                                lookup_table->entries[j - 1] = lookup_table->entries[j];
                                lookup_table->entries[j] = tmp_voltage_lookup_record;
                        }
                }
        }

        return 0;
}

static int smu7_complete_dependency_tables(struct pp_hwmgr *hwmgr)
{
        int result = 0;
        int tmp_result;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);

        if (data->vdd_gfx_control == SMU7_VOLTAGE_CONTROL_BY_SVID2) {
                tmp_result = smu7_patch_lookup_table_with_leakage(hwmgr,
                        table_info->vddgfx_lookup_table, &(data->vddcgfx_leakage));
                if (tmp_result != 0)
                        result = tmp_result;

                smu7_patch_ppt_v1_with_vdd_leakage(hwmgr,
                        &table_info->max_clock_voltage_on_dc.vddgfx, &(data->vddcgfx_leakage));
        } else {

                tmp_result = smu7_patch_lookup_table_with_leakage(hwmgr,
                                table_info->vddc_lookup_table, &(data->vddc_leakage));
                if (tmp_result)
                        result = tmp_result;

                tmp_result = smu7_patch_clock_voltage_limits_with_vddc_leakage(hwmgr,
                                &(data->vddc_leakage), &table_info->max_clock_voltage_on_dc.vddc);
                if (tmp_result)
                        result = tmp_result;
        }

        tmp_result = smu7_patch_voltage_dependency_tables_with_lookup_table(hwmgr);
        if (tmp_result)
                result = tmp_result;

        tmp_result = smu7_calc_voltage_dependency_tables(hwmgr);
        if (tmp_result)
                result = tmp_result;

        tmp_result = smu7_calc_mm_voltage_dependency_table(hwmgr);
        if (tmp_result)
                result = tmp_result;

        tmp_result = smu7_sort_lookup_table(hwmgr, table_info->vddgfx_lookup_table);
        if (tmp_result)
                result = tmp_result;

        tmp_result = smu7_sort_lookup_table(hwmgr, table_info->vddc_lookup_table);
        if (tmp_result)
                result = tmp_result;

        return result;
}

static int smu7_set_private_data_based_on_pptable_v1(struct pp_hwmgr *hwmgr)
{
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);

        struct phm_ppt_v1_clock_voltage_dependency_table *allowed_sclk_vdd_table =
                                                table_info->vdd_dep_on_sclk;
        struct phm_ppt_v1_clock_voltage_dependency_table *allowed_mclk_vdd_table =
                                                table_info->vdd_dep_on_mclk;

        PP_ASSERT_WITH_CODE(allowed_sclk_vdd_table != NULL,
                "VDD dependency on SCLK table is missing.",
                return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_sclk_vdd_table->count >= 1,
                "VDD dependency on SCLK table has to have is missing.",
                return -EINVAL);

        PP_ASSERT_WITH_CODE(allowed_mclk_vdd_table != NULL,
                "VDD dependency on MCLK table is missing",
                return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_mclk_vdd_table->count >= 1,
                "VDD dependency on MCLK table has to have is missing.",
                return -EINVAL);

        table_info->max_clock_voltage_on_ac.sclk =
                allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].clk;
        table_info->max_clock_voltage_on_ac.mclk =
                allowed_mclk_vdd_table->entries[allowed_mclk_vdd_table->count - 1].clk;
        table_info->max_clock_voltage_on_ac.vddc =
                allowed_sclk_vdd_table->entries[allowed_sclk_vdd_table->count - 1].vddc;
        table_info->max_clock_voltage_on_ac.vddci =
                allowed_mclk_vdd_table->entries[allowed_mclk_vdd_table->count - 1].vddci;

        hwmgr->dyn_state.max_clock_voltage_on_ac.sclk = table_info->max_clock_voltage_on_ac.sclk;
        hwmgr->dyn_state.max_clock_voltage_on_ac.mclk = table_info->max_clock_voltage_on_ac.mclk;
        hwmgr->dyn_state.max_clock_voltage_on_ac.vddc = table_info->max_clock_voltage_on_ac.vddc;
        hwmgr->dyn_state.max_clock_voltage_on_ac.vddci = table_info->max_clock_voltage_on_ac.vddci;

        return 0;
}

int smu7_patch_voltage_workaround(struct pp_hwmgr *hwmgr)
{
        struct phm_ppt_v1_information *table_info =
                       (struct phm_ppt_v1_information *)(hwmgr->pptable);
        struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table;
        struct phm_ppt_v1_voltage_lookup_table *lookup_table;
        uint32_t i;
        uint32_t hw_revision, sub_vendor_id, sub_sys_id;
        struct cgs_system_info sys_info = {0};

        if (table_info != NULL) {
                dep_mclk_table = table_info->vdd_dep_on_mclk;
                lookup_table = table_info->vddc_lookup_table;
        } else
                return 0;

        sys_info.size = sizeof(struct cgs_system_info);

        sys_info.info_id = CGS_SYSTEM_INFO_PCIE_REV;
        cgs_query_system_info(hwmgr->device, &sys_info);
        hw_revision = (uint32_t)sys_info.value;

        sys_info.info_id = CGS_SYSTEM_INFO_PCIE_SUB_SYS_ID;
        cgs_query_system_info(hwmgr->device, &sys_info);
        sub_sys_id = (uint32_t)sys_info.value;

        sys_info.info_id = CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID;
        cgs_query_system_info(hwmgr->device, &sys_info);
        sub_vendor_id = (uint32_t)sys_info.value;

        if (hwmgr->chip_id == CHIP_POLARIS10 && hw_revision == 0xC7 &&
                        ((sub_sys_id == 0xb37 && sub_vendor_id == 0x1002) ||
                    (sub_sys_id == 0x4a8 && sub_vendor_id == 0x1043) ||
                    (sub_sys_id == 0x9480 && sub_vendor_id == 0x1682))) {
                if (lookup_table->entries[dep_mclk_table->entries[dep_mclk_table->count-1].vddInd].us_vdd >= 1000)
                        return 0;

                for (i = 0; i < lookup_table->count; i++) {
                        if (lookup_table->entries[i].us_vdd < 0xff01 && lookup_table->entries[i].us_vdd >= 1000) {
                                dep_mclk_table->entries[dep_mclk_table->count-1].vddInd = (uint8_t) i;
                                return 0;
                        }
                }
        }
        return 0;
}

static int smu7_thermal_parameter_init(struct pp_hwmgr *hwmgr)
{
        struct pp_atomctrl_gpio_pin_assignment gpio_pin_assignment;
        uint32_t temp_reg;
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);


        if (atomctrl_get_pp_assign_pin(hwmgr, VDDC_PCC_GPIO_PINID, &gpio_pin_assignment)) {
                temp_reg = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCNB_PWRMGT_CNTL);
                switch (gpio_pin_assignment.uc_gpio_pin_bit_shift) {
                case 0:
                        temp_reg = PHM_SET_FIELD(temp_reg, CNB_PWRMGT_CNTL, GNB_SLOW_MODE, 0x1);
                        break;
                case 1:
                        temp_reg = PHM_SET_FIELD(temp_reg, CNB_PWRMGT_CNTL, GNB_SLOW_MODE, 0x2);
                        break;
                case 2:
                        temp_reg = PHM_SET_FIELD(temp_reg, CNB_PWRMGT_CNTL, GNB_SLOW, 0x1);
                        break;
                case 3:
                        temp_reg = PHM_SET_FIELD(temp_reg, CNB_PWRMGT_CNTL, FORCE_NB_PS1, 0x1);
                        break;
                case 4:
                        temp_reg = PHM_SET_FIELD(temp_reg, CNB_PWRMGT_CNTL, DPM_ENABLED, 0x1);
                        break;
                default:
                        PP_ASSERT_WITH_CODE(0,
                        "Failed to setup PCC HW register! Wrong GPIO assigned for VDDC_PCC_GPIO_PINID!",
                        );
                        break;
                }
                cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCNB_PWRMGT_CNTL, temp_reg);
        }

        if (table_info == NULL)
                return 0;

        if (table_info->cac_dtp_table->usDefaultTargetOperatingTemp != 0 &&
                hwmgr->thermal_controller.advanceFanControlParameters.ucFanControlMode) {
                hwmgr->thermal_controller.advanceFanControlParameters.usFanPWMMinLimit =
                        (uint16_t)hwmgr->thermal_controller.advanceFanControlParameters.ucMinimumPWMLimit;

                hwmgr->thermal_controller.advanceFanControlParameters.usFanPWMMaxLimit =
                        (uint16_t)hwmgr->thermal_controller.advanceFanControlParameters.usDefaultMaxFanPWM;

                hwmgr->thermal_controller.advanceFanControlParameters.usFanPWMStep = 1;

                hwmgr->thermal_controller.advanceFanControlParameters.usFanRPMMaxLimit = 100;

                hwmgr->thermal_controller.advanceFanControlParameters.usFanRPMMinLimit =
                        (uint16_t)hwmgr->thermal_controller.advanceFanControlParameters.ucMinimumPWMLimit;

                hwmgr->thermal_controller.advanceFanControlParameters.usFanRPMStep = 1;

                table_info->cac_dtp_table->usDefaultTargetOperatingTemp = (table_info->cac_dtp_table->usDefaultTargetOperatingTemp >= 50) ?
                                                                (table_info->cac_dtp_table->usDefaultTargetOperatingTemp - 50) : 0;

                table_info->cac_dtp_table->usOperatingTempMaxLimit = table_info->cac_dtp_table->usDefaultTargetOperatingTemp;
                table_info->cac_dtp_table->usOperatingTempStep = 1;
                table_info->cac_dtp_table->usOperatingTempHyst = 1;

                hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanPWM =
                               hwmgr->thermal_controller.advanceFanControlParameters.usDefaultMaxFanPWM;

                hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanRPM =
                               hwmgr->thermal_controller.advanceFanControlParameters.usDefaultMaxFanRPM;

                hwmgr->dyn_state.cac_dtp_table->usOperatingTempMinLimit =
                               table_info->cac_dtp_table->usOperatingTempMinLimit;

                hwmgr->dyn_state.cac_dtp_table->usOperatingTempMaxLimit =
                               table_info->cac_dtp_table->usOperatingTempMaxLimit;

                hwmgr->dyn_state.cac_dtp_table->usDefaultTargetOperatingTemp =
                               table_info->cac_dtp_table->usDefaultTargetOperatingTemp;

                hwmgr->dyn_state.cac_dtp_table->usOperatingTempStep =
                               table_info->cac_dtp_table->usOperatingTempStep;

                hwmgr->dyn_state.cac_dtp_table->usTargetOperatingTemp =
                               table_info->cac_dtp_table->usTargetOperatingTemp;
                phm_cap_set(hwmgr->platform_descriptor.platformCaps,
                                                PHM_PlatformCaps_ODFuzzyFanControlSupport);
        }

        return 0;
}

/**
 * Change virtual leakage voltage to actual value.
 *
 * @param     hwmgr  the address of the powerplay hardware manager.
 * @param     pointer to changing voltage
 * @param     pointer to leakage table
 */
static void smu7_patch_ppt_v0_with_vdd_leakage(struct pp_hwmgr *hwmgr,
                uint32_t *voltage, struct smu7_leakage_voltage *leakage_table)
{
        uint32_t index;

        /* search for leakage voltage ID 0xff01 ~ 0xff08 */
        for (index = 0; index < leakage_table->count; index++) {
                /* if this voltage matches a leakage voltage ID */
                /* patch with actual leakage voltage */
                if (leakage_table->leakage_id[index] == *voltage) {
                        *voltage = leakage_table->actual_voltage[index];
                        break;
                }
        }

        if (*voltage > ATOM_VIRTUAL_VOLTAGE_ID0)
                printk(KERN_ERR "Voltage value looks like a Leakage ID but it's not patched \n");
}


static int smu7_patch_vddc(struct pp_hwmgr *hwmgr,
                              struct phm_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                                &data->vddc_leakage);

        return 0;
}

static int smu7_patch_vddci(struct pp_hwmgr *hwmgr,
                               struct phm_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                                        &data->vddci_leakage);

        return 0;
}

static int smu7_patch_vce_vddc(struct pp_hwmgr *hwmgr,
                                  struct phm_vce_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                                        &data->vddc_leakage);

        return 0;
}


static int smu7_patch_uvd_vddc(struct pp_hwmgr *hwmgr,
                                  struct phm_uvd_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                                        &data->vddc_leakage);

        return 0;
}

static int smu7_patch_vddc_shed_limit(struct pp_hwmgr *hwmgr,
                                         struct phm_phase_shedding_limits_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].Voltage,
                                                        &data->vddc_leakage);

        return 0;
}

static int smu7_patch_samu_vddc(struct pp_hwmgr *hwmgr,
                                   struct phm_samu_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                                        &data->vddc_leakage);

        return 0;
}

static int smu7_patch_acp_vddc(struct pp_hwmgr *hwmgr,
                                  struct phm_acp_clock_voltage_dependency_table *tab)
{
        uint16_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab)
                for (i = 0; i < tab->count; i++)
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &tab->entries[i].v,
                                        &data->vddc_leakage);

        return 0;
}

static int smu7_patch_limits_vddc(struct pp_hwmgr *hwmgr,
                                  struct phm_clock_and_voltage_limits *tab)
{
        uint32_t vddc, vddci;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab) {
                vddc = tab->vddc;
                smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &vddc,
                                                   &data->vddc_leakage);
                tab->vddc = vddc;
                vddci = tab->vddci;
                smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &vddci,
                                                   &data->vddci_leakage);
                tab->vddci = vddci;
        }

        return 0;
}

static int smu7_patch_cac_vddc(struct pp_hwmgr *hwmgr, struct phm_cac_leakage_table *tab)
{
        uint32_t i;
        uint32_t vddc;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (tab) {
                for (i = 0; i < tab->count; i++) {
                        vddc = (uint32_t)(tab->entries[i].Vddc);
                        smu7_patch_ppt_v0_with_vdd_leakage(hwmgr, &vddc, &data->vddc_leakage);
                        tab->entries[i].Vddc = (uint16_t)vddc;
                }
        }

        return 0;
}

static int smu7_patch_dependency_tables_with_leakage(struct pp_hwmgr *hwmgr)
{
        int tmp;

        tmp = smu7_patch_vddc(hwmgr, hwmgr->dyn_state.vddc_dependency_on_sclk);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_vddc(hwmgr, hwmgr->dyn_state.vddc_dependency_on_mclk);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_vddc(hwmgr, hwmgr->dyn_state.vddc_dep_on_dal_pwrl);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_vddci(hwmgr, hwmgr->dyn_state.vddci_dependency_on_mclk);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_vce_vddc(hwmgr, hwmgr->dyn_state.vce_clock_voltage_dependency_table);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_uvd_vddc(hwmgr, hwmgr->dyn_state.uvd_clock_voltage_dependency_table);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_samu_vddc(hwmgr, hwmgr->dyn_state.samu_clock_voltage_dependency_table);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_acp_vddc(hwmgr, hwmgr->dyn_state.acp_clock_voltage_dependency_table);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_vddc_shed_limit(hwmgr, hwmgr->dyn_state.vddc_phase_shed_limits_table);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_limits_vddc(hwmgr, &hwmgr->dyn_state.max_clock_voltage_on_ac);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_limits_vddc(hwmgr, &hwmgr->dyn_state.max_clock_voltage_on_dc);
        if (tmp)
                return -EINVAL;

        tmp = smu7_patch_cac_vddc(hwmgr, hwmgr->dyn_state.cac_leakage_table);
        if (tmp)
                return -EINVAL;

        return 0;
}


static int smu7_set_private_data_based_on_pptable_v0(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        struct phm_clock_voltage_dependency_table *allowed_sclk_vddc_table = hwmgr->dyn_state.vddc_dependency_on_sclk;
        struct phm_clock_voltage_dependency_table *allowed_mclk_vddc_table = hwmgr->dyn_state.vddc_dependency_on_mclk;
        struct phm_clock_voltage_dependency_table *allowed_mclk_vddci_table = hwmgr->dyn_state.vddci_dependency_on_mclk;

        PP_ASSERT_WITH_CODE(allowed_sclk_vddc_table != NULL,
                "VDDC dependency on SCLK table is missing. This table is mandatory\n", return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_sclk_vddc_table->count >= 1,
                "VDDC dependency on SCLK table has to have is missing. This table is mandatory\n", return -EINVAL);

        PP_ASSERT_WITH_CODE(allowed_mclk_vddc_table != NULL,
                "VDDC dependency on MCLK table is missing. This table is mandatory\n", return -EINVAL);
        PP_ASSERT_WITH_CODE(allowed_mclk_vddc_table->count >= 1,
                "VDD dependency on MCLK table has to have is missing. This table is mandatory\n", return -EINVAL);

        data->min_vddc_in_pptable = (uint16_t)allowed_sclk_vddc_table->entries[0].v;
        data->max_vddc_in_pptable = (uint16_t)allowed_sclk_vddc_table->entries[allowed_sclk_vddc_table->count - 1].v;

        hwmgr->dyn_state.max_clock_voltage_on_ac.sclk =
                allowed_sclk_vddc_table->entries[allowed_sclk_vddc_table->count - 1].clk;
        hwmgr->dyn_state.max_clock_voltage_on_ac.mclk =
                allowed_mclk_vddc_table->entries[allowed_mclk_vddc_table->count - 1].clk;
        hwmgr->dyn_state.max_clock_voltage_on_ac.vddc =
                allowed_sclk_vddc_table->entries[allowed_sclk_vddc_table->count - 1].v;

        if (allowed_mclk_vddci_table != NULL && allowed_mclk_vddci_table->count >= 1) {
                data->min_vddci_in_pptable = (uint16_t)allowed_mclk_vddci_table->entries[0].v;
                data->max_vddci_in_pptable = (uint16_t)allowed_mclk_vddci_table->entries[allowed_mclk_vddci_table->count - 1].v;
        }

        if (hwmgr->dyn_state.vddci_dependency_on_mclk != NULL && hwmgr->dyn_state.vddci_dependency_on_mclk->count > 1)
                hwmgr->dyn_state.max_clock_voltage_on_ac.vddci = hwmgr->dyn_state.vddci_dependency_on_mclk->entries[hwmgr->dyn_state.vddci_dependency_on_mclk->count - 1].v;

        return 0;
}

int smu7_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data;
        int result;

        data = kzalloc(sizeof(struct smu7_hwmgr), GFP_KERNEL);
        if (data == NULL)
                return -ENOMEM;

        hwmgr->backend = data;

        smu7_patch_voltage_workaround(hwmgr);
        smu7_init_dpm_defaults(hwmgr);

        /* Get leakage voltage based on leakage ID. */
        result = smu7_get_evv_voltages(hwmgr);

        if (result) {
                printk("Get EVV Voltage Failed.  Abort Driver loading!\n");
                return -EINVAL;
        }

        if (hwmgr->pp_table_version == PP_TABLE_V1) {
                smu7_complete_dependency_tables(hwmgr);
                smu7_set_private_data_based_on_pptable_v1(hwmgr);
        } else if (hwmgr->pp_table_version == PP_TABLE_V0) {
                smu7_patch_dependency_tables_with_leakage(hwmgr);
                smu7_set_private_data_based_on_pptable_v0(hwmgr);
        }

        /* Initalize Dynamic State Adjustment Rule Settings */
        result = phm_initializa_dynamic_state_adjustment_rule_settings(hwmgr);

        if (0 == result) {
                struct cgs_system_info sys_info = {0};

                data->is_tlu_enabled = false;

                hwmgr->platform_descriptor.hardwareActivityPerformanceLevels =
                                                        SMU7_MAX_HARDWARE_POWERLEVELS;
                hwmgr->platform_descriptor.hardwarePerformanceLevels = 2;
                hwmgr->platform_descriptor.minimumClocksReductionPercentage = 50;

                sys_info.size = sizeof(struct cgs_system_info);
                sys_info.info_id = CGS_SYSTEM_INFO_PCIE_GEN_INFO;
                result = cgs_query_system_info(hwmgr->device, &sys_info);
                if (result)
                        data->pcie_gen_cap = AMDGPU_DEFAULT_PCIE_GEN_MASK;
                else
                        data->pcie_gen_cap = (uint32_t)sys_info.value;
                if (data->pcie_gen_cap & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)
                        data->pcie_spc_cap = 20;
                sys_info.size = sizeof(struct cgs_system_info);
                sys_info.info_id = CGS_SYSTEM_INFO_PCIE_MLW;
                result = cgs_query_system_info(hwmgr->device, &sys_info);
                if (result)
                        data->pcie_lane_cap = AMDGPU_DEFAULT_PCIE_MLW_MASK;
                else
                        data->pcie_lane_cap = (uint32_t)sys_info.value;

                hwmgr->platform_descriptor.vbiosInterruptId = 0x20000400; /* IRQ_SOURCE1_SW_INT */
/* The true clock step depends on the frequency, typically 4.5 or 9 MHz. Here we use 5. */
                hwmgr->platform_descriptor.clockStep.engineClock = 500;
                hwmgr->platform_descriptor.clockStep.memoryClock = 500;
                smu7_thermal_parameter_init(hwmgr);
        } else {
                /* Ignore return value in here, we are cleaning up a mess. */
                phm_hwmgr_backend_fini(hwmgr);
        }

        return 0;
}

static int smu7_force_dpm_highest(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        uint32_t level, tmp;

        if (!data->pcie_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.pcie_dpm_enable_mask) {
                        level = 0;
                        tmp = data->dpm_level_enable_mask.pcie_dpm_enable_mask;
                        while (tmp >>= 1)
                                level++;

                        if (level)
                                smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                PPSMC_MSG_PCIeDPM_ForceLevel, level);
                }
        }

        if (!data->sclk_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.sclk_dpm_enable_mask) {
                        level = 0;
                        tmp = data->dpm_level_enable_mask.sclk_dpm_enable_mask;
                        while (tmp >>= 1)
                                level++;

                        if (level)
                                smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                PPSMC_MSG_SCLKDPM_SetEnabledMask,
                                                (1 << level));
                }
        }

        if (!data->mclk_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.mclk_dpm_enable_mask) {
                        level = 0;
                        tmp = data->dpm_level_enable_mask.mclk_dpm_enable_mask;
                        while (tmp >>= 1)
                                level++;

                        if (level)
                                smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                PPSMC_MSG_MCLKDPM_SetEnabledMask,
                                                (1 << level));
                }
        }

        return 0;
}

static int smu7_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (hwmgr->pp_table_version == PP_TABLE_V1)
                phm_apply_dal_min_voltage_request(hwmgr);
/* TO DO  for v0 iceland and Ci*/

        if (!data->sclk_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.sclk_dpm_enable_mask)
                        smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                        PPSMC_MSG_SCLKDPM_SetEnabledMask,
                                        data->dpm_level_enable_mask.sclk_dpm_enable_mask);
        }

        if (!data->mclk_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.mclk_dpm_enable_mask)
                        smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                        PPSMC_MSG_MCLKDPM_SetEnabledMask,
                                        data->dpm_level_enable_mask.mclk_dpm_enable_mask);
        }

        return 0;
}

static int smu7_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

        if (!smum_is_dpm_running(hwmgr))
                return -EINVAL;

        if (!data->pcie_dpm_key_disabled) {
                smum_send_msg_to_smc(hwmgr->smumgr,
                                PPSMC_MSG_PCIeDPM_UnForceLevel);
        }

        return smu7_upload_dpm_level_enable_mask(hwmgr);
}

static int smu7_force_dpm_lowest(struct pp_hwmgr *hwmgr)
{
        struct smu7_hwmgr *data =
                        (struct smu7_hwmgr *)(hwmgr->backend);
        uint32_t level;

        if (!data->sclk_dpm_key_disabled)
                if (data->dpm_level_enable_mask.sclk_dpm_enable_mask) {
                        level = phm_get_lowest_enabled_level(hwmgr,
                                                              data->dpm_level_enable_mask.sclk_dpm_enable_mask);
                        smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                            PPSMC_MSG_SCLKDPM_SetEnabledMask,
                                                            (1 << level));

        }

        if (!data->mclk_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.mclk_dpm_enable_mask) {
                        level = phm_get_lowest_enabled_level(hwmgr,
                                                              data->dpm_level_enable_mask.mclk_dpm_enable_mask);
                        smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                            PPSMC_MSG_MCLKDPM_SetEnabledMask,
                                                            (1 << level));
                }
        }

        if (!data->pcie_dpm_key_disabled) {
                if (data->dpm_level_enable_mask.pcie_dpm_enable_mask) {
                        level = phm_get_lowest_enabled_level(hwmgr,
                                                              data->dpm_level_enable_mask.pcie_dpm_enable_mask);
                        smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
                                                            PPSMC_MSG_PCIeDPM_ForceLevel,
                                                            (level));
                }
        }

        return 0;

}
static int smu7_force_dpm_level(struct pp_hwmgr *hwmgr,
                                enum amd_dpm_forced_level level)
{
        int ret = 0;

        switch (level) {
        case AMD_DPM_FORCED_LEVEL_HIGH:
                ret = smu7_force_dpm_highest(hwmgr);
                if (ret)
                        return ret;
                break;
        case AMD_DPM_FORCED_LEVEL_LOW:
                ret = smu7_force_dpm_lowest(hwmgr);
                if (ret)
                        return ret;
                break;
        case AMD_DPM_FORCED_LEVEL_AUTO:
                ret = smu7_unforce_dpm_levels(hwmgr);
                if (ret)
                        return ret;
                break;
        default:
                break;
        }

        hwmgr->dpm_level = level;

        return ret;
}

static int smu7_get_power_state_size(struct pp_hwmgr *hwmgr)
{
        return sizeof(struct smu7_power_state);
}


static int smu7_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
                                struct pp_power_state *request_ps,
                        const struct pp_power_state *current_ps)
{

        struct smu7_power_state *smu7_ps =
                                cast_phw_smu7_power_state(&request_ps->hardware);
        uint32_t sclk;
        uint32_t mclk;
        struct PP_Clocks minimum_clocks = {0};
        bool disable_mclk_switching;
        bool disable_mclk_switching_for_frame_lock;
        struct cgs_display_info info = {0};
        const struct phm_clock_and_voltage_limits *max_limits;
        uint32_t i;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);
        int32_t count;
        int32_t stable_pstate_sclk = 0, stable_pstate_mclk = 0;

        data->battery_state = (PP_StateUILabel_Battery ==
                        request_ps->classification.ui_label);

        PP_ASSERT_WITH_CODE(smu7_ps->performance_level_count == 2,
                                 "VI should always have 2 performance levels",
                                );

        max_limits = (PP_PowerSource_AC == hwmgr->power_source) ?
                        &(hwmgr->dyn_state.max_clock_voltage_on_ac) :
                        &(hwmgr->dyn_state.max_clock_voltage_on_dc);

        /* Cap clock DPM tables at DC MAX if it is in DC. */
        if (PP_PowerSource_DC == hwmgr->power_source) {
                for (i = 0; i < smu7_ps->performance_level_count; i++) {
                        if (smu7_ps->performance_levels[i].memory_clock > max_limits->mclk)
                                smu7_ps->performance_levels[i].memory_clock = max_limits->mclk;
                        if (smu7_ps->performance_levels[i].engine_clock > max_limits->sclk)
                                smu7_ps->performance_levels[i].engine_clock = max_limits->sclk;
                }
        }

        smu7_ps->vce_clks.evclk = hwmgr->vce_arbiter.evclk;
        smu7_ps->vce_clks.ecclk = hwmgr->vce_arbiter.ecclk;

        cgs_get_active_displays_info(hwmgr->device, &info);

        /*TO DO result = PHM_CheckVBlankTime(hwmgr, &vblankTooShort);*/

        minimum_clocks.engineClock = hwmgr->display_config.min_core_set_clock;
        minimum_clocks.memoryClock = hwmgr->display_config.min_mem_set_clock;

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_StablePState)) {
                max_limits = &(hwmgr->dyn_state.max_clock_voltage_on_ac);
                stable_pstate_sclk = (max_limits->sclk * 75) / 100;

                for (count = table_info->vdd_dep_on_sclk->count - 1;
                                count >= 0; count--) {
                        if (stable_pstate_sclk >=
                                        table_info->vdd_dep_on_sclk->entries[count].clk) {
                                stable_pstate_sclk =
                                                table_info->vdd_dep_on_sclk->entries[count].clk;
                                break;
                        }
                }

                if (count < 0)
                        stable_pstate_sclk = table_info->vdd_dep_on_sclk->entries[0].clk;

                stable_pstate_mclk = max_limits->mclk;

                minimum_clocks.engineClock = stable_pstate_sclk;
                minimum_clocks.memoryClock = stable_pstate_mclk;
        }

        if (minimum_clocks.engineClock < hwmgr->gfx_arbiter.sclk)
                minimum_clocks.engineClock = hwmgr->gfx_arbiter.sclk;

        if (minimum_clocks.memoryClock < hwmgr->gfx_arbiter.mclk)
                minimum_clocks.memoryClock = hwmgr->gfx_arbiter.mclk;

        smu7_ps->sclk_threshold = hwmgr->gfx_arbiter.sclk_threshold;

        if (0 != hwmgr->gfx_arbiter.sclk_over_drive) {
                PP_ASSERT_WITH_CODE((hwmgr->gfx_arbiter.sclk_over_drive <=
                                hwmgr->platform_descriptor.overdriveLimit.engineClock),
                                "Overdrive sclk exceeds limit",
                                hwmgr->gfx_arbiter.sclk_over_drive =
                                                hwmgr->platform_descriptor.overdriveLimit.engineClock);

                if (hwmgr->gfx_arbiter.sclk_over_drive >= hwmgr->gfx_arbiter.sclk)
                        smu7_ps->performance_levels[1].engine_clock =
                                        hwmgr->gfx_arbiter.sclk_over_drive;
        }

        if (0 != hwmgr->gfx_arbiter.mclk_over_drive) {
                PP_ASSERT_WITH_CODE((hwmgr->gfx_arbiter.mclk_over_drive <=
                                hwmgr->platform_descriptor.overdriveLimit.memoryClock),
                                "Overdrive mclk exceeds limit",
                                hwmgr->gfx_arbiter.mclk_over_drive =
                                                hwmgr->platform_descriptor.overdriveLimit.memoryClock);

                if (hwmgr->gfx_arbiter.mclk_over_drive >= hwmgr->gfx_arbiter.mclk)
                        smu7_ps->performance_levels[1].memory_clock =
                                        hwmgr->gfx_arbiter.mclk_over_drive;
        }

        disable_mclk_switching_for_frame_lock = phm_cap_enabled(
                                    hwmgr->platform_descriptor.platformCaps,
                                    PHM_PlatformCaps_DisableMclkSwitchingForFrameLock);


        disable_mclk_switching = (1 < info.display_count) ||
                                    disable_mclk_switching_for_frame_lock;

        sclk = smu7_ps->performance_levels[0].engine_clock;
        mclk = smu7_ps->performance_levels[0].memory_clock;

        if (disable_mclk_switching)
                mclk = smu7_ps->performance_levels
                [smu7_ps->performance_level_count - 1].memory_clock;

        if (sclk < minimum_clocks.engineClock)
                sclk = (minimum_clocks.engineClock > max_limits->sclk) ?
                                max_limits->sclk : minimum_clocks.engineClock;

        if (mclk < minimum_clocks.memoryClock)
                mclk = (minimum_clocks.memoryClock > max_limits->mclk) ?
                                max_limits->mclk : minimum_clocks.memoryClock;

        smu7_ps->performance_levels[0].engine_clock = sclk;
        smu7_ps->performance_levels[0].memory_clock = mclk;

        smu7_ps->performance_levels[1].engine_clock =
                (smu7_ps->performance_levels[1].engine_clock >=
                                smu7_ps->performance_levels[0].engine_clock) ?
                                                smu7_ps->performance_levels[1].engine_clock :
                                                smu7_ps->performance_levels[0].engine_clock;

        if (disable_mclk_switching) {
                if (mclk < smu7_ps->performance_levels[1].memory_clock)
                        mclk = smu7_ps->performance_levels[1].memory_clock;

                smu7_ps->performance_levels[0].memory_clock = mclk;
                smu7_ps->performance_levels[1].memory_clock = mclk;
        } else {
                if (smu7_ps->performance_levels[1].memory_clock <
                                smu7_ps->performance_levels[0].memory_clock)
                        smu7_ps->performance_levels[1].memory_clock =
                                        smu7_ps->performance_levels[0].memory_clock;
        }

        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
                        PHM_PlatformCaps_StablePState)) {
                for (i = 0; i < smu7_ps->performance_level_count; i++) {
                        smu7_ps->performance_levels[i].engine_clock = stable_pstate_sclk;
                        smu7_ps->performance_levels[i].memory_clock = stable_pstate_mclk;
                        smu7_ps->performance_levels[i].pcie_gen = data->pcie_gen_performance.max;
                        smu7_ps->performance_levels[i].pcie_lane = data->pcie_gen_performance.max;
                }
        }
        return 0;
}


static int smu7_dpm_get_mclk(struct pp_hwmgr *hwmgr, bool low)
{
        struct pp_power_state  *ps;
        struct smu7_power_state  *smu7_ps;

        if (hwmgr == NULL)
                return -EINVAL;

        ps = hwmgr->request_ps;

        if (ps == NULL)
                return -EINVAL;

        smu7_ps = cast_phw_smu7_power_state(&ps->hardware);

        if (low)
                return smu7_ps->performance_levels[0].memory_clock;
        else
                return smu7_ps->performance_levels
                                [smu7_ps->performance_level_count-1].memory_clock;
}

static int smu7_dpm_get_sclk(struct pp_hwmgr *hwmgr, bool low)
{
        struct pp_power_state  *ps;
        struct smu7_power_state  *smu7_ps;

        if (hwmgr == NULL)
                return -EINVAL;

        ps = hwmgr->request_ps;

        if (ps == NULL)
                return -EINVAL;

        smu7_ps = cast_phw_smu7_power_state(&ps->hardware);

        if (low)
                return smu7_ps->performance_levels[0].engine_clock;
        else
                return smu7_ps->performance_levels
                                [smu7_ps->performance_level_count-1].engine_clock;
}

static int smu7_dpm_patch_boot_state(struct pp_hwmgr *hwmgr,
                                        struct pp_hw_power_state *hw_ps)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct smu7_power_state *ps = (struct smu7_power_state *)hw_ps;
        ATOM_FIRMWARE_INFO_V2_2 *fw_info;
        uint16_t size;
        uint8_t frev, crev;
        int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);

        /* First retrieve the Boot clocks and VDDC from the firmware info table.
         * We assume here that fw_info is unchanged if this call fails.
         */
        fw_info = (ATOM_FIRMWARE_INFO_V2_2 *)cgs_atom_get_data_table(
                        hwmgr->device, index,
                        &size, &frev, &crev);
        if (!fw_info)
                /* During a test, there is no firmware info table. */
                return 0;

        /* Patch the state. */
        data->vbios_boot_state.sclk_bootup_value =
                        le32_to_cpu(fw_info->ulDefaultEngineClock);
        data->vbios_boot_state.mclk_bootup_value =
                        le32_to_cpu(fw_info->ulDefaultMemoryClock);
        data->vbios_boot_state.mvdd_bootup_value =
                        le16_to_cpu(fw_info->usBootUpMVDDCVoltage);
        data->vbios_boot_state.vddc_bootup_value =
                        le16_to_cpu(fw_info->usBootUpVDDCVoltage);
        data->vbios_boot_state.vddci_bootup_value =
                        le16_to_cpu(fw_info->usBootUpVDDCIVoltage);
        data->vbios_boot_state.pcie_gen_bootup_value =
                        smu7_get_current_pcie_speed(hwmgr);

        data->vbios_boot_state.pcie_lane_bootup_value =
                        (uint16_t)smu7_get_current_pcie_lane_number(hwmgr);

        /* set boot power state */
        ps->performance_levels[0].memory_clock = data->vbios_boot_state.mclk_bootup_value;
        ps->performance_levels[0].engine_clock = data->vbios_boot_state.sclk_bootup_value;
        ps->performance_levels[0].pcie_gen = data->vbios_boot_state.pcie_gen_bootup_value;
        ps->performance_levels[0].pcie_lane = data->vbios_boot_state.pcie_lane_bootup_value;

        return 0;
}

static int smu7_get_number_of_powerplay_table_entries(struct pp_hwmgr *hwmgr)
{
        int result;
        unsigned long ret = 0;

        if (hwmgr->pp_table_version == PP_TABLE_V0) {
                result = pp_tables_get_num_of_entries(hwmgr, &ret);
                return result ? 0 : ret;
        } else if (hwmgr->pp_table_version == PP_TABLE_V1) {
                result = get_number_of_powerplay_table_entries_v1_0(hwmgr);
                return result;
        }
        return 0;
}

static int smu7_get_pp_table_entry_callback_func_v1(struct pp_hwmgr *hwmgr,
                void *state, struct pp_power_state *power_state,
                void *pp_table, uint32_t classification_flag)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct smu7_power_state  *smu7_power_state =
                        (struct smu7_power_state *)(&(power_state->hardware));
        struct smu7_performance_level *performance_level;
        ATOM_Tonga_State *state_entry = (ATOM_Tonga_State *)state;
        ATOM_Tonga_POWERPLAYTABLE *powerplay_table =
                        (ATOM_Tonga_POWERPLAYTABLE *)pp_table;
        PPTable_Generic_SubTable_Header *sclk_dep_table =
                        (PPTable_Generic_SubTable_Header *)
                        (((unsigned long)powerplay_table) +
                                le16_to_cpu(powerplay_table->usSclkDependencyTableOffset));

        ATOM_Tonga_MCLK_Dependency_Table *mclk_dep_table =
                        (ATOM_Tonga_MCLK_Dependency_Table *)
                        (((unsigned long)powerplay_table) +
                                le16_to_cpu(powerplay_table->usMclkDependencyTableOffset));

        /* The following fields are not initialized here: id orderedList allStatesList */
        power_state->classification.ui_label =
                        (le16_to_cpu(state_entry->usClassification) &
                        ATOM_PPLIB_CLASSIFICATION_UI_MASK) >>
                        ATOM_PPLIB_CLASSIFICATION_UI_SHIFT;
        power_state->classification.flags = classification_flag;
        /* NOTE: There is a classification2 flag in BIOS that is not being used right now */

        power_state->classification.temporary_state = false;
        power_state->classification.to_be_deleted = false;

        power_state->validation.disallowOnDC =
                        (0 != (le32_to_cpu(state_entry->ulCapsAndSettings) &
                                        ATOM_Tonga_DISALLOW_ON_DC));

        power_state->pcie.lanes = 0;

        power_state->display.disableFrameModulation = false;
        power_state->display.limitRefreshrate = false;
        power_state->display.enableVariBright =
                        (0 != (le32_to_cpu(state_entry->ulCapsAndSettings) &
                                        ATOM_Tonga_ENABLE_VARIBRIGHT));

        power_state->validation.supportedPowerLevels = 0;
        power_state->uvd_clocks.VCLK = 0;
        power_state->uvd_clocks.DCLK = 0;
        power_state->temperatures.min = 0;
        power_state->temperatures.max = 0;

        performance_level = &(smu7_power_state->performance_levels
                        [smu7_power_state->performance_level_count++]);

        PP_ASSERT_WITH_CODE(
                        (smu7_power_state->performance_level_count < smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_GRAPHICS)),
                        "Performance levels exceeds SMC limit!",
                        return -EINVAL);

        PP_ASSERT_WITH_CODE(
                        (smu7_power_state->performance_level_count <=
                                        hwmgr->platform_descriptor.hardwareActivityPerformanceLevels),
                        "Performance levels exceeds Driver limit!",
                        return -EINVAL);

        /* Performance levels are arranged from low to high. */
        performance_level->memory_clock = mclk_dep_table->entries
                        [state_entry->ucMemoryClockIndexLow].ulMclk;
        if (sclk_dep_table->ucRevId == 0)
                performance_level->engine_clock = ((ATOM_Tonga_SCLK_Dependency_Table *)sclk_dep_table)->entries
                        [state_entry->ucEngineClockIndexLow].ulSclk;
        else if (sclk_dep_table->ucRevId == 1)
                performance_level->engine_clock = ((ATOM_Polaris_SCLK_Dependency_Table *)sclk_dep_table)->entries
                        [state_entry->ucEngineClockIndexLow].ulSclk;
        performance_level->pcie_gen = get_pcie_gen_support(data->pcie_gen_cap,
                        state_entry->ucPCIEGenLow);
        performance_level->pcie_lane = get_pcie_lane_support(data->pcie_lane_cap,
                        state_entry->ucPCIELaneHigh);

        performance_level = &(smu7_power_state->performance_levels
                        [smu7_power_state->performance_level_count++]);
        performance_level->memory_clock = mclk_dep_table->entries
                        [state_entry->ucMemoryClockIndexHigh].ulMclk;

        if (sclk_dep_table->ucRevId == 0)
                performance_level->engine_clock = ((ATOM_Tonga_SCLK_Dependency_Table *)sclk_dep_table)->entries
                        [state_entry->ucEngineClockIndexHigh].ulSclk;
        else if (sclk_dep_table->ucRevId == 1)
                performance_level->engine_clock = ((ATOM_Polaris_SCLK_Dependency_Table *)sclk_dep_table)->entries
                        [state_entry->ucEngineClockIndexHigh].ulSclk;

        performance_level->pcie_gen = get_pcie_gen_support(data->pcie_gen_cap,
                        state_entry->ucPCIEGenHigh);
        performance_level->pcie_lane = get_pcie_lane_support(data->pcie_lane_cap,
                        state_entry->ucPCIELaneHigh);

        return 0;
}

static int smu7_get_pp_table_entry_v1(struct pp_hwmgr *hwmgr,
                unsigned long entry_index, struct pp_power_state *state)
{
        int result;
        struct smu7_power_state *ps;
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct phm_ppt_v1_information *table_info =
                        (struct phm_ppt_v1_information *)(hwmgr->pptable);
        struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table =
                        table_info->vdd_dep_on_mclk;

        state->hardware.magic = PHM_VIslands_Magic;

        ps = (struct smu7_power_state *)(&state->hardware);

        result = get_powerplay_table_entry_v1_0(hwmgr, entry_index, state,
                        smu7_get_pp_table_entry_callback_func_v1);

        /* This is the earliest time we have all the dependency table and the VBIOS boot state
         * as PP_Tables_GetPowerPlayTableEntry retrieves the VBIOS boot state
         * if there is only one VDDCI/MCLK level, check if it's the same as VBIOS boot state
         */
        if (dep_mclk_table != NULL && dep_mclk_table->count == 1) {
                if (dep_mclk_table->entries[0].clk !=
                                data->vbios_boot_state.mclk_bootup_value)
                        printk(KERN_ERR "Single MCLK entry VDDCI/MCLK dependency table "
                                        "does not match VBIOS boot MCLK level");
                if (dep_mclk_table->entries[0].vddci !=
                                data->vbios_boot_state.vddci_bootup_value)
                        printk(KERN_ERR "Single VDDCI entry VDDCI/MCLK dependency table "
                                        "does not match VBIOS boot VDDCI level");
        }

        /* set DC compatible flag if this state supports DC */
        if (!state->validation.disallowOnDC)
                ps->dc_compatible = true;

        if (state->classification.flags & PP_StateClassificationFlag_ACPI)
                data->acpi_pcie_gen = ps->performance_levels[0].pcie_gen;

        ps->uvd_clks.vclk = state->uvd_clocks.VCLK;
        ps->uvd_clks.dclk = state->uvd_clocks.DCLK;

        if (!result) {
                uint32_t i;

                switch (state->classification.ui_label) {
                case PP_StateUILabel_Performance:
                        data->use_pcie_performance_levels = true;
                        for (i = 0; i < ps->performance_level_count; i++) {
                                if (data->pcie_gen_performance.max <
                                                ps->performance_levels[i].pcie_gen)
                                        data->pcie_gen_performance.max =
                                                        ps->performance_levels[i].pcie_gen;

                                if (data->pcie_gen_performance.min >
                                                ps->performance_levels[i].pcie_gen)
                                        data->pcie_gen_performance.min =
                                                        ps->performance_levels[i].pcie_gen;

                                if (data->pcie_lane_performance.max <
                                                ps->performance_levels[i].pcie_lane)
                                        data->pcie_lane_performance.max =
                                                        ps->performance_levels[i].pcie_lane;
                                if (data->pcie_lane_performance.min >
                                                ps->performance_levels[i].pcie_lane)
                                        data->pcie_lane_performance.min =
                                                        ps->performance_levels[i].pcie_lane;
                        }
                        break;
                case PP_StateUILabel_Battery:
                        data->use_pcie_power_saving_levels = true;

                        for (i = 0; i < ps->performance_level_count; i++) {
                                if (data->pcie_gen_power_saving.max <
                                                ps->performance_levels[i].pcie_gen)
                                        data->pcie_gen_power_saving.max =
                                                        ps->performance_levels[i].pcie_gen;

                                if (data->pcie_gen_power_saving.min >
                                                ps->performance_levels[i].pcie_gen)
                                        data->pcie_gen_power_saving.min =
                                                        ps->performance_levels[i].pcie_gen;

                                if (data->pcie_lane_power_saving.max <
                                                ps->performance_levels[i].pcie_lane)
                                        data->pcie_lane_power_saving.max =
                                                        ps->performance_levels[i].pcie_lane;

                                if (data->pcie_lane_power_saving.min >
                                                ps->performance_levels[i].pcie_lane)
                                        data->pcie_lane_power_saving.min =
                                                        ps->performance_levels[i].pcie_lane;
                        }
                        break;
                default:
                        break;
                }
        }
        return 0;
}

static int smu7_get_pp_table_entry_callback_func_v0(struct pp_hwmgr *hwmgr,
                                        struct pp_hw_power_state *power_state,
                                        unsigned int index, const void *clock_info)
{
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
        struct smu7_power_state  *ps = cast_phw_smu7_power_state(power_state);
        const ATOM_PPLIB_CI_CLOCK_INFO *visland_clk_info = clock_info;
        struct smu7_performance_level *performance_level;
        uint32_t engine_clock, memory_clock;
        uint16_t pcie_gen_from_bios;

        engine_clock = visland_clk_info->ucEngineClockHigh << 16 | visland_clk_info->usEngineClockLow;
        memory_clock = visland_clk_info->ucMemoryClockHigh << 16 | visland_clk_info->usMemoryClockLow;

        if (!(data->mc_micro_code_feature & DISABLE_MC_LOADMICROCODE) && memory_clock > data->highest_mclk)
                data->highest_mclk = memory_clock;

        PP_ASSERT_WITH_CODE(
                        (ps->performance_level_count < smum_get_mac_definition(hwmgr->smumgr, SMU_MAX_LEVELS_GRAPHICS)),
                        "Performance levels exceeds SMC limit!",
                        return -EINVAL);

        PP_ASSERT_WITH_CODE(
                        (ps->performance_level_count <
                                        hwmgr->platform_descriptor.hardwareActivityPerformanceLevels),
                        "Performance levels exceeds Driver limit, Skip!",
                        return 0);

        performance_level = &(ps->performance_levels
                        [ps->performance_level_count++]);