root/sys/dev/drm/amd/amdgpu/amdgpu_dpm.c
/*
 * Copyright 2011 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Alex Deucher
 */

#include <drm/drmP.h>
#include "amdgpu.h"
#include "amdgpu_atombios.h"
#include "amdgpu_i2c.h"
#include "amdgpu_dpm.h"
#include "atom.h"
#include "amd_pcie.h"

void amdgpu_dpm_print_class_info(u32 class, u32 class2)
{
        const char *s;

        switch (class & ATOM_PPLIB_CLASSIFICATION_UI_MASK) {
        case ATOM_PPLIB_CLASSIFICATION_UI_NONE:
        default:
                s = "none";
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY:
                s = "battery";
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED:
                s = "balanced";
                break;
        case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE:
                s = "performance";
                break;
        }
        printk("\tui class: %s\n", s);
        printk("\tinternal class:");
        if (((class & ~ATOM_PPLIB_CLASSIFICATION_UI_MASK) == 0) &&
            (class2 == 0))
                pr_cont(" none");
        else {
                if (class & ATOM_PPLIB_CLASSIFICATION_BOOT)
                        pr_cont(" boot");
                if (class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
                        pr_cont(" thermal");
                if (class & ATOM_PPLIB_CLASSIFICATION_LIMITEDPOWERSOURCE)
                        pr_cont(" limited_pwr");
                if (class & ATOM_PPLIB_CLASSIFICATION_REST)
                        pr_cont(" rest");
                if (class & ATOM_PPLIB_CLASSIFICATION_FORCED)
                        pr_cont(" forced");
                if (class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
                        pr_cont(" 3d_perf");
                if (class & ATOM_PPLIB_CLASSIFICATION_OVERDRIVETEMPLATE)
                        pr_cont(" ovrdrv");
                if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
                        pr_cont(" uvd");
                if (class & ATOM_PPLIB_CLASSIFICATION_3DLOW)
                        pr_cont(" 3d_low");
                if (class & ATOM_PPLIB_CLASSIFICATION_ACPI)
                        pr_cont(" acpi");
                if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
                        pr_cont(" uvd_hd2");
                if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
                        pr_cont(" uvd_hd");
                if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
                        pr_cont(" uvd_sd");
                if (class2 & ATOM_PPLIB_CLASSIFICATION2_LIMITEDPOWERSOURCE_2)
                        pr_cont(" limited_pwr2");
                if (class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
                        pr_cont(" ulv");
                if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
                        pr_cont(" uvd_mvc");
        }
        pr_cont("\n");
}

void amdgpu_dpm_print_cap_info(u32 caps)
{
        printk("\tcaps:");
        if (caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY)
                pr_cont(" single_disp");
        if (caps & ATOM_PPLIB_SUPPORTS_VIDEO_PLAYBACK)
                pr_cont(" video");
        if (caps & ATOM_PPLIB_DISALLOW_ON_DC)
                pr_cont(" no_dc");
        pr_cont("\n");
}

void amdgpu_dpm_print_ps_status(struct amdgpu_device *adev,
                                struct amdgpu_ps *rps)
{
        printk("\tstatus:");
        if (rps == adev->pm.dpm.current_ps)
                pr_cont(" c");
        if (rps == adev->pm.dpm.requested_ps)
                pr_cont(" r");
        if (rps == adev->pm.dpm.boot_ps)
                pr_cont(" b");
        pr_cont("\n");
}

void amdgpu_dpm_get_active_displays(struct amdgpu_device *adev)
{
        struct drm_device *ddev = adev->ddev;
        struct drm_crtc *crtc;
        struct amdgpu_crtc *amdgpu_crtc;

        adev->pm.dpm.new_active_crtcs = 0;
        adev->pm.dpm.new_active_crtc_count = 0;
        if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
                list_for_each_entry(crtc,
                                    &ddev->mode_config.crtc_list, head) {
                        amdgpu_crtc = to_amdgpu_crtc(crtc);
                        if (amdgpu_crtc->enabled) {
                                adev->pm.dpm.new_active_crtcs |= (1 << amdgpu_crtc->crtc_id);
                                adev->pm.dpm.new_active_crtc_count++;
                        }
                }
        }
}


u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev)
{
        struct drm_device *dev = adev->ddev;
        struct drm_crtc *crtc;
        struct amdgpu_crtc *amdgpu_crtc;
        u32 vblank_in_pixels;
        u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */

        if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
                list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
                        amdgpu_crtc = to_amdgpu_crtc(crtc);
                        if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
                                vblank_in_pixels =
                                        amdgpu_crtc->hw_mode.crtc_htotal *
                                        (amdgpu_crtc->hw_mode.crtc_vblank_end -
                                        amdgpu_crtc->hw_mode.crtc_vdisplay +
                                        (amdgpu_crtc->v_border * 2));

                                vblank_time_us = vblank_in_pixels * 1000 / amdgpu_crtc->hw_mode.clock;
                                break;
                        }
                }
        }

        return vblank_time_us;
}

u32 amdgpu_dpm_get_vrefresh(struct amdgpu_device *adev)
{
        struct drm_device *dev = adev->ddev;
        struct drm_crtc *crtc;
        struct amdgpu_crtc *amdgpu_crtc;
        u32 vrefresh = 0;

        if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
                list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
                        amdgpu_crtc = to_amdgpu_crtc(crtc);
                        if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
                                vrefresh = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
                                break;
                        }
                }
        }

        return vrefresh;
}

void amdgpu_calculate_u_and_p(u32 i, u32 r_c, u32 p_b,
                              u32 *p, u32 *u)
{
        u32 b_c = 0;
        u32 i_c;
        u32 tmp;

        i_c = (i * r_c) / 100;
        tmp = i_c >> p_b;

        while (tmp) {
                b_c++;
                tmp >>= 1;
        }

        *u = (b_c + 1) / 2;
        *p = i_c / (1 << (2 * (*u)));
}

int amdgpu_calculate_at(u32 t, u32 h, u32 fh, u32 fl, u32 *tl, u32 *th)
{
        u32 k, a, ah, al;
        u32 t1;

        if ((fl == 0) || (fh == 0) || (fl > fh))
                return -EINVAL;

        k = (100 * fh) / fl;
        t1 = (t * (k - 100));
        a = (1000 * (100 * h + t1)) / (10000 + (t1 / 100));
        a = (a + 5) / 10;
        ah = ((a * t) + 5000) / 10000;
        al = a - ah;

        *th = t - ah;
        *tl = t + al;

        return 0;
}

bool amdgpu_is_uvd_state(u32 class, u32 class2)
{
        if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
                return true;
        if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
                return true;
        if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
                return true;
        if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
                return true;
        if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
                return true;
        return false;
}

bool amdgpu_is_internal_thermal_sensor(enum amdgpu_int_thermal_type sensor)
{
        switch (sensor) {
        case THERMAL_TYPE_RV6XX:
        case THERMAL_TYPE_RV770:
        case THERMAL_TYPE_EVERGREEN:
        case THERMAL_TYPE_SUMO:
        case THERMAL_TYPE_NI:
        case THERMAL_TYPE_SI:
        case THERMAL_TYPE_CI:
        case THERMAL_TYPE_KV:
                return true;
        case THERMAL_TYPE_ADT7473_WITH_INTERNAL:
        case THERMAL_TYPE_EMC2103_WITH_INTERNAL:
                return false; /* need special handling */
        case THERMAL_TYPE_NONE:
        case THERMAL_TYPE_EXTERNAL:
        case THERMAL_TYPE_EXTERNAL_GPIO:
        default:
                return false;
        }
}

union power_info {
        struct _ATOM_POWERPLAY_INFO info;
        struct _ATOM_POWERPLAY_INFO_V2 info_2;
        struct _ATOM_POWERPLAY_INFO_V3 info_3;
        struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
        struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
        struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
        struct _ATOM_PPLIB_POWERPLAYTABLE4 pplib4;
        struct _ATOM_PPLIB_POWERPLAYTABLE5 pplib5;
};

union fan_info {
        struct _ATOM_PPLIB_FANTABLE fan;
        struct _ATOM_PPLIB_FANTABLE2 fan2;
        struct _ATOM_PPLIB_FANTABLE3 fan3;
};

static int amdgpu_parse_clk_voltage_dep_table(struct amdgpu_clock_voltage_dependency_table *amdgpu_table,
                                              ATOM_PPLIB_Clock_Voltage_Dependency_Table *atom_table)
{
        u32 size = atom_table->ucNumEntries *
                sizeof(struct amdgpu_clock_voltage_dependency_entry);
        int i;
        ATOM_PPLIB_Clock_Voltage_Dependency_Record *entry;

        amdgpu_table->entries = kzalloc(size, GFP_KERNEL);
        if (!amdgpu_table->entries)
                return -ENOMEM;

        entry = &atom_table->entries[0];
        for (i = 0; i < atom_table->ucNumEntries; i++) {
                amdgpu_table->entries[i].clk = le16_to_cpu(entry->usClockLow) |
                        (entry->ucClockHigh << 16);
                amdgpu_table->entries[i].v = le16_to_cpu(entry->usVoltage);
                entry = (ATOM_PPLIB_Clock_Voltage_Dependency_Record *)
                        ((u8 *)entry + sizeof(ATOM_PPLIB_Clock_Voltage_Dependency_Record));
        }
        amdgpu_table->count = atom_table->ucNumEntries;

        return 0;
}

int amdgpu_get_platform_caps(struct amdgpu_device *adev)
{
        struct amdgpu_mode_info *mode_info = &adev->mode_info;
        union power_info *power_info;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;

        if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return -EINVAL;
        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

        adev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps);
        adev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime);
        adev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime);

        return 0;
}

/* sizeof(ATOM_PPLIB_EXTENDEDHEADER) */
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2 12
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3 14
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4 16
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5 18
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6 20
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7 22
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8 24
#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V9 26

int amdgpu_parse_extended_power_table(struct amdgpu_device *adev)
{
        struct amdgpu_mode_info *mode_info = &adev->mode_info;
        union power_info *power_info;
        union fan_info *fan_info;
        ATOM_PPLIB_Clock_Voltage_Dependency_Table *dep_table;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        u16 data_offset;
        u8 frev, crev;
        int ret, i;

        if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return -EINVAL;
        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

        /* fan table */
        if (le16_to_cpu(power_info->pplib.usTableSize) >=
            sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) {
                if (power_info->pplib3.usFanTableOffset) {
                        fan_info = (union fan_info *)(mode_info->atom_context->bios + data_offset +
                                                      le16_to_cpu(power_info->pplib3.usFanTableOffset));
                        adev->pm.dpm.fan.t_hyst = fan_info->fan.ucTHyst;
                        adev->pm.dpm.fan.t_min = le16_to_cpu(fan_info->fan.usTMin);
                        adev->pm.dpm.fan.t_med = le16_to_cpu(fan_info->fan.usTMed);
                        adev->pm.dpm.fan.t_high = le16_to_cpu(fan_info->fan.usTHigh);
                        adev->pm.dpm.fan.pwm_min = le16_to_cpu(fan_info->fan.usPWMMin);
                        adev->pm.dpm.fan.pwm_med = le16_to_cpu(fan_info->fan.usPWMMed);
                        adev->pm.dpm.fan.pwm_high = le16_to_cpu(fan_info->fan.usPWMHigh);
                        if (fan_info->fan.ucFanTableFormat >= 2)
                                adev->pm.dpm.fan.t_max = le16_to_cpu(fan_info->fan2.usTMax);
                        else
                                adev->pm.dpm.fan.t_max = 10900;
                        adev->pm.dpm.fan.cycle_delay = 100000;
                        if (fan_info->fan.ucFanTableFormat >= 3) {
                                adev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode;
                                adev->pm.dpm.fan.default_max_fan_pwm =
                                        le16_to_cpu(fan_info->fan3.usFanPWMMax);
                                adev->pm.dpm.fan.default_fan_output_sensitivity = 4836;
                                adev->pm.dpm.fan.fan_output_sensitivity =
                                        le16_to_cpu(fan_info->fan3.usFanOutputSensitivity);
                        }
                        adev->pm.dpm.fan.ucode_fan_control = true;
                }
        }

        /* clock dependancy tables, shedding tables */
        if (le16_to_cpu(power_info->pplib.usTableSize) >=
            sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE4)) {
                if (power_info->pplib4.usVddcDependencyOnSCLKOffset) {
                        dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usVddcDependencyOnSCLKOffset));
                        ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
                                                                 dep_table);
                        if (ret) {
                                amdgpu_free_extended_power_table(adev);
                                return ret;
                        }
                }
                if (power_info->pplib4.usVddciDependencyOnMCLKOffset) {
                        dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usVddciDependencyOnMCLKOffset));
                        ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
                                                                 dep_table);
                        if (ret) {
                                amdgpu_free_extended_power_table(adev);
                                return ret;
                        }
                }
                if (power_info->pplib4.usVddcDependencyOnMCLKOffset) {
                        dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usVddcDependencyOnMCLKOffset));
                        ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
                                                                 dep_table);
                        if (ret) {
                                amdgpu_free_extended_power_table(adev);
                                return ret;
                        }
                }
                if (power_info->pplib4.usMvddDependencyOnMCLKOffset) {
                        dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usMvddDependencyOnMCLKOffset));
                        ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.mvdd_dependency_on_mclk,
                                                                 dep_table);
                        if (ret) {
                                amdgpu_free_extended_power_table(adev);
                                return ret;
                        }
                }
                if (power_info->pplib4.usMaxClockVoltageOnDCOffset) {
                        ATOM_PPLIB_Clock_Voltage_Limit_Table *clk_v =
                                (ATOM_PPLIB_Clock_Voltage_Limit_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usMaxClockVoltageOnDCOffset));
                        if (clk_v->ucNumEntries) {
                                adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.sclk =
                                        le16_to_cpu(clk_v->entries[0].usSclkLow) |
                                        (clk_v->entries[0].ucSclkHigh << 16);
                                adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.mclk =
                                        le16_to_cpu(clk_v->entries[0].usMclkLow) |
                                        (clk_v->entries[0].ucMclkHigh << 16);
                                adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddc =
                                        le16_to_cpu(clk_v->entries[0].usVddc);
                                adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddci =
                                        le16_to_cpu(clk_v->entries[0].usVddci);
                        }
                }
                if (power_info->pplib4.usVddcPhaseShedLimitsTableOffset) {
                        ATOM_PPLIB_PhaseSheddingLimits_Table *psl =
                                (ATOM_PPLIB_PhaseSheddingLimits_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib4.usVddcPhaseShedLimitsTableOffset));
                        ATOM_PPLIB_PhaseSheddingLimits_Record *entry;

                        adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries =
                                kcalloc(psl->ucNumEntries,
                                        sizeof(struct amdgpu_phase_shedding_limits_entry),
                                        GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }

                        entry = &psl->entries[0];
                        for (i = 0; i < psl->ucNumEntries; i++) {
                                adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].sclk =
                                        le16_to_cpu(entry->usSclkLow) | (entry->ucSclkHigh << 16);
                                adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].mclk =
                                        le16_to_cpu(entry->usMclkLow) | (entry->ucMclkHigh << 16);
                                adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].voltage =
                                        le16_to_cpu(entry->usVoltage);
                                entry = (ATOM_PPLIB_PhaseSheddingLimits_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_PhaseSheddingLimits_Record));
                        }
                        adev->pm.dpm.dyn_state.phase_shedding_limits_table.count =
                                psl->ucNumEntries;
                }
        }

        /* cac data */
        if (le16_to_cpu(power_info->pplib.usTableSize) >=
            sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE5)) {
                adev->pm.dpm.tdp_limit = le32_to_cpu(power_info->pplib5.ulTDPLimit);
                adev->pm.dpm.near_tdp_limit = le32_to_cpu(power_info->pplib5.ulNearTDPLimit);
                adev->pm.dpm.near_tdp_limit_adjusted = adev->pm.dpm.near_tdp_limit;
                adev->pm.dpm.tdp_od_limit = le16_to_cpu(power_info->pplib5.usTDPODLimit);
                if (adev->pm.dpm.tdp_od_limit)
                        adev->pm.dpm.power_control = true;
                else
                        adev->pm.dpm.power_control = false;
                adev->pm.dpm.tdp_adjustment = 0;
                adev->pm.dpm.sq_ramping_threshold = le32_to_cpu(power_info->pplib5.ulSQRampingThreshold);
                adev->pm.dpm.cac_leakage = le32_to_cpu(power_info->pplib5.ulCACLeakage);
                adev->pm.dpm.load_line_slope = le16_to_cpu(power_info->pplib5.usLoadLineSlope);
                if (power_info->pplib5.usCACLeakageTableOffset) {
                        ATOM_PPLIB_CAC_Leakage_Table *cac_table =
                                (ATOM_PPLIB_CAC_Leakage_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(power_info->pplib5.usCACLeakageTableOffset));
                        ATOM_PPLIB_CAC_Leakage_Record *entry;
                        u32 size = cac_table->ucNumEntries * sizeof(struct amdgpu_cac_leakage_table);
                        adev->pm.dpm.dyn_state.cac_leakage_table.entries = kzalloc(size, GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.cac_leakage_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        entry = &cac_table->entries[0];
                        for (i = 0; i < cac_table->ucNumEntries; i++) {
                                if (adev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) {
                                        adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc1 =
                                                le16_to_cpu(entry->usVddc1);
                                        adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc2 =
                                                le16_to_cpu(entry->usVddc2);
                                        adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc3 =
                                                le16_to_cpu(entry->usVddc3);
                                } else {
                                        adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc =
                                                le16_to_cpu(entry->usVddc);
                                        adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].leakage =
                                                le32_to_cpu(entry->ulLeakageValue);
                                }
                                entry = (ATOM_PPLIB_CAC_Leakage_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_CAC_Leakage_Record));
                        }
                        adev->pm.dpm.dyn_state.cac_leakage_table.count = cac_table->ucNumEntries;
                }
        }

        /* ext tables */
        if (le16_to_cpu(power_info->pplib.usTableSize) >=
            sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) {
                ATOM_PPLIB_EXTENDEDHEADER *ext_hdr = (ATOM_PPLIB_EXTENDEDHEADER *)
                        (mode_info->atom_context->bios + data_offset +
                         le16_to_cpu(power_info->pplib3.usExtendendedHeaderOffset));
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2) &&
                        ext_hdr->usVCETableOffset) {
                        VCEClockInfoArray *array = (VCEClockInfoArray *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usVCETableOffset) + 1);
                        ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *limits =
                                (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
                                 1 + array->ucNumEntries * sizeof(VCEClockInfo));
                        ATOM_PPLIB_VCE_State_Table *states =
                                (ATOM_PPLIB_VCE_State_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
                                 1 + (array->ucNumEntries * sizeof (VCEClockInfo)) +
                                 1 + (limits->numEntries * sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record)));
                        ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *entry;
                        ATOM_PPLIB_VCE_State_Record *state_entry;
                        VCEClockInfo *vce_clk;
                        u32 size = limits->numEntries *
                                sizeof(struct amdgpu_vce_clock_voltage_dependency_entry);
                        adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries =
                                kzalloc(size, GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count =
                                limits->numEntries;
                        entry = &limits->entries[0];
                        state_entry = &states->entries[0];
                        for (i = 0; i < limits->numEntries; i++) {
                                vce_clk = (VCEClockInfo *)
                                        ((u8 *)&array->entries[0] +
                                         (entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo)));
                                adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk =
                                        le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
                                adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk =
                                        le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
                                adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v =
                                        le16_to_cpu(entry->usVoltage);
                                entry = (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record));
                        }
                        adev->pm.dpm.num_of_vce_states =
                                        states->numEntries > AMD_MAX_VCE_LEVELS ?
                                        AMD_MAX_VCE_LEVELS : states->numEntries;
                        for (i = 0; i < adev->pm.dpm.num_of_vce_states; i++) {
                                vce_clk = (VCEClockInfo *)
                                        ((u8 *)&array->entries[0] +
                                         (state_entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo)));
                                adev->pm.dpm.vce_states[i].evclk =
                                        le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
                                adev->pm.dpm.vce_states[i].ecclk =
                                        le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
                                adev->pm.dpm.vce_states[i].clk_idx =
                                        state_entry->ucClockInfoIndex & 0x3f;
                                adev->pm.dpm.vce_states[i].pstate =
                                        (state_entry->ucClockInfoIndex & 0xc0) >> 6;
                                state_entry = (ATOM_PPLIB_VCE_State_Record *)
                                        ((u8 *)state_entry + sizeof(ATOM_PPLIB_VCE_State_Record));
                        }
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3) &&
                        ext_hdr->usUVDTableOffset) {
                        UVDClockInfoArray *array = (UVDClockInfoArray *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1);
                        ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *limits =
                                (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1 +
                                 1 + (array->ucNumEntries * sizeof (UVDClockInfo)));
                        ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *entry;
                        u32 size = limits->numEntries *
                                sizeof(struct amdgpu_uvd_clock_voltage_dependency_entry);
                        adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries =
                                kzalloc(size, GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count =
                                limits->numEntries;
                        entry = &limits->entries[0];
                        for (i = 0; i < limits->numEntries; i++) {
                                UVDClockInfo *uvd_clk = (UVDClockInfo *)
                                        ((u8 *)&array->entries[0] +
                                         (entry->ucUVDClockInfoIndex * sizeof(UVDClockInfo)));
                                adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].vclk =
                                        le16_to_cpu(uvd_clk->usVClkLow) | (uvd_clk->ucVClkHigh << 16);
                                adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk =
                                        le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16);
                                adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v =
                                        le16_to_cpu(entry->usVoltage);
                                entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record));
                        }
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) &&
                        ext_hdr->usSAMUTableOffset) {
                        ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits =
                                (ATOM_PPLIB_SAMClk_Voltage_Limit_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1);
                        ATOM_PPLIB_SAMClk_Voltage_Limit_Record *entry;
                        u32 size = limits->numEntries *
                                sizeof(struct amdgpu_clock_voltage_dependency_entry);
                        adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries =
                                kzalloc(size, GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count =
                                limits->numEntries;
                        entry = &limits->entries[0];
                        for (i = 0; i < limits->numEntries; i++) {
                                adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk =
                                        le16_to_cpu(entry->usSAMClockLow) | (entry->ucSAMClockHigh << 16);
                                adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v =
                                        le16_to_cpu(entry->usVoltage);
                                entry = (ATOM_PPLIB_SAMClk_Voltage_Limit_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_SAMClk_Voltage_Limit_Record));
                        }
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) &&
                    ext_hdr->usPPMTableOffset) {
                        ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usPPMTableOffset));
                        adev->pm.dpm.dyn_state.ppm_table =
                                kzalloc(sizeof(struct amdgpu_ppm_table), GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.ppm_table) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        adev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign;
                        adev->pm.dpm.dyn_state.ppm_table->cpu_core_number =
                                le16_to_cpu(ppm->usCpuCoreNumber);
                        adev->pm.dpm.dyn_state.ppm_table->platform_tdp =
                                le32_to_cpu(ppm->ulPlatformTDP);
                        adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdp =
                                le32_to_cpu(ppm->ulSmallACPlatformTDP);
                        adev->pm.dpm.dyn_state.ppm_table->platform_tdc =
                                le32_to_cpu(ppm->ulPlatformTDC);
                        adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdc =
                                le32_to_cpu(ppm->ulSmallACPlatformTDC);
                        adev->pm.dpm.dyn_state.ppm_table->apu_tdp =
                                le32_to_cpu(ppm->ulApuTDP);
                        adev->pm.dpm.dyn_state.ppm_table->dgpu_tdp =
                                le32_to_cpu(ppm->ulDGpuTDP);
                        adev->pm.dpm.dyn_state.ppm_table->dgpu_ulv_power =
                                le32_to_cpu(ppm->ulDGpuUlvPower);
                        adev->pm.dpm.dyn_state.ppm_table->tj_max =
                                le32_to_cpu(ppm->ulTjmax);
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) &&
                        ext_hdr->usACPTableOffset) {
                        ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits =
                                (ATOM_PPLIB_ACPClk_Voltage_Limit_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usACPTableOffset) + 1);
                        ATOM_PPLIB_ACPClk_Voltage_Limit_Record *entry;
                        u32 size = limits->numEntries *
                                sizeof(struct amdgpu_clock_voltage_dependency_entry);
                        adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries =
                                kzalloc(size, GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count =
                                limits->numEntries;
                        entry = &limits->entries[0];
                        for (i = 0; i < limits->numEntries; i++) {
                                adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk =
                                        le16_to_cpu(entry->usACPClockLow) | (entry->ucACPClockHigh << 16);
                                adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v =
                                        le16_to_cpu(entry->usVoltage);
                                entry = (ATOM_PPLIB_ACPClk_Voltage_Limit_Record *)
                                        ((u8 *)entry + sizeof(ATOM_PPLIB_ACPClk_Voltage_Limit_Record));
                        }
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) &&
                        ext_hdr->usPowerTuneTableOffset) {
                        u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset +
                                         le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
                        ATOM_PowerTune_Table *pt;
                        adev->pm.dpm.dyn_state.cac_tdp_table =
                                kzalloc(sizeof(struct amdgpu_cac_tdp_table), GFP_KERNEL);
                        if (!adev->pm.dpm.dyn_state.cac_tdp_table) {
                                amdgpu_free_extended_power_table(adev);
                                return -ENOMEM;
                        }
                        if (rev > 0) {
                                ATOM_PPLIB_POWERTUNE_Table_V1 *ppt = (ATOM_PPLIB_POWERTUNE_Table_V1 *)
                                        (mode_info->atom_context->bios + data_offset +
                                         le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
                                adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit =
                                        ppt->usMaximumPowerDeliveryLimit;
                                pt = &ppt->power_tune_table;
                        } else {
                                ATOM_PPLIB_POWERTUNE_Table *ppt = (ATOM_PPLIB_POWERTUNE_Table *)
                                        (mode_info->atom_context->bios + data_offset +
                                         le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
                                adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 255;
                                pt = &ppt->power_tune_table;
                        }
                        adev->pm.dpm.dyn_state.cac_tdp_table->tdp = le16_to_cpu(pt->usTDP);
                        adev->pm.dpm.dyn_state.cac_tdp_table->configurable_tdp =
                                le16_to_cpu(pt->usConfigurableTDP);
                        adev->pm.dpm.dyn_state.cac_tdp_table->tdc = le16_to_cpu(pt->usTDC);
                        adev->pm.dpm.dyn_state.cac_tdp_table->battery_power_limit =
                                le16_to_cpu(pt->usBatteryPowerLimit);
                        adev->pm.dpm.dyn_state.cac_tdp_table->small_power_limit =
                                le16_to_cpu(pt->usSmallPowerLimit);
                        adev->pm.dpm.dyn_state.cac_tdp_table->low_cac_leakage =
                                le16_to_cpu(pt->usLowCACLeakage);
                        adev->pm.dpm.dyn_state.cac_tdp_table->high_cac_leakage =
                                le16_to_cpu(pt->usHighCACLeakage);
                }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8) &&
                                ext_hdr->usSclkVddgfxTableOffset) {
                        dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
                                (mode_info->atom_context->bios + data_offset +
                                 le16_to_cpu(ext_hdr->usSclkVddgfxTableOffset));
                        ret = amdgpu_parse_clk_voltage_dep_table(
                                        &adev->pm.dpm.dyn_state.vddgfx_dependency_on_sclk,
                                        dep_table);
                        if (ret) {
                                kfree(adev->pm.dpm.dyn_state.vddgfx_dependency_on_sclk.entries);
                                return ret;
                        }
                }
        }

        return 0;
}

void amdgpu_free_extended_power_table(struct amdgpu_device *adev)
{
        struct amdgpu_dpm_dynamic_state *dyn_state = &adev->pm.dpm.dyn_state;

        kfree(dyn_state->vddc_dependency_on_sclk.entries);
        kfree(dyn_state->vddci_dependency_on_mclk.entries);
        kfree(dyn_state->vddc_dependency_on_mclk.entries);
        kfree(dyn_state->mvdd_dependency_on_mclk.entries);
        kfree(dyn_state->cac_leakage_table.entries);
        kfree(dyn_state->phase_shedding_limits_table.entries);
        kfree(dyn_state->ppm_table);
        kfree(dyn_state->cac_tdp_table);
        kfree(dyn_state->vce_clock_voltage_dependency_table.entries);
        kfree(dyn_state->uvd_clock_voltage_dependency_table.entries);
        kfree(dyn_state->samu_clock_voltage_dependency_table.entries);
        kfree(dyn_state->acp_clock_voltage_dependency_table.entries);
        kfree(dyn_state->vddgfx_dependency_on_sclk.entries);
}

static const char *pp_lib_thermal_controller_names[] = {
        "NONE",
        "lm63",
        "adm1032",
        "adm1030",
        "max6649",
        "lm64",
        "f75375",
        "RV6xx",
        "RV770",
        "adt7473",
        "NONE",
        "External GPIO",
        "Evergreen",
        "emc2103",
        "Sumo",
        "Northern Islands",
        "Southern Islands",
        "lm96163",
        "Sea Islands",
        "Kaveri/Kabini",
};

void amdgpu_add_thermal_controller(struct amdgpu_device *adev)
{
        struct amdgpu_mode_info *mode_info = &adev->mode_info;
        ATOM_PPLIB_POWERPLAYTABLE *power_table;
        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
        ATOM_PPLIB_THERMALCONTROLLER *controller;
        struct amdgpu_i2c_bus_rec i2c_bus;
        u16 data_offset;
        u8 frev, crev;

        if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
                                   &frev, &crev, &data_offset))
                return;
        power_table = (ATOM_PPLIB_POWERPLAYTABLE *)
                (mode_info->atom_context->bios + data_offset);
        controller = &power_table->sThermalController;

        /* add the i2c bus for thermal/fan chip */
        if (controller->ucType > 0) {
                if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN)
                        adev->pm.no_fan = true;
                adev->pm.fan_pulses_per_revolution =
                        controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK;
                if (adev->pm.fan_pulses_per_revolution) {
                        adev->pm.fan_min_rpm = controller->ucFanMinRPM;
                        adev->pm.fan_max_rpm = controller->ucFanMaxRPM;
                }
                if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_RV6XX;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV770) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_RV770;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EVERGREEN) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_EVERGREEN;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SUMO) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_SUMO;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_NISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_NI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_SI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_CISLANDS) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_CI;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_KAVERI) {
                        DRM_INFO("Internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_KV;
                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EXTERNAL_GPIO) {
                        DRM_INFO("External GPIO thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL_GPIO;
                } else if (controller->ucType ==
                           ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL) {
                        DRM_INFO("ADT7473 with internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_ADT7473_WITH_INTERNAL;
                } else if (controller->ucType ==
                           ATOM_PP_THERMALCONTROLLER_EMC2103_WITH_INTERNAL) {
                        DRM_INFO("EMC2103 with internal thermal controller %s fan control\n",
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_EMC2103_WITH_INTERNAL;
                } else if (controller->ucType < ARRAY_SIZE(pp_lib_thermal_controller_names)) {
                        DRM_INFO("Possible %s thermal controller at 0x%02x %s fan control\n",
                                 pp_lib_thermal_controller_names[controller->ucType],
                                 controller->ucI2cAddress >> 1,
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                        adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL;
                        i2c_bus = amdgpu_atombios_lookup_i2c_gpio(adev, controller->ucI2cLine);
                        adev->pm.i2c_bus = amdgpu_i2c_lookup(adev, &i2c_bus);
                        if (adev->pm.i2c_bus) {
                                struct i2c_board_info info = { };
                                const char *name = pp_lib_thermal_controller_names[controller->ucType];
                                info.addr = controller->ucI2cAddress >> 1;
                                strlcpy(info.type, name, sizeof(info.type));
                                i2c_new_device(&adev->pm.i2c_bus->adapter, &info);
                        }
                } else {
                        DRM_INFO("Unknown thermal controller type %d at 0x%02x %s fan control\n",
                                 controller->ucType,
                                 controller->ucI2cAddress >> 1,
                                 (controller->ucFanParameters &
                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                }
        }
}

enum amdgpu_pcie_gen amdgpu_get_pcie_gen_support(struct amdgpu_device *adev,
                                                 u32 sys_mask,
                                                 enum amdgpu_pcie_gen asic_gen,
                                                 enum amdgpu_pcie_gen default_gen)
{
        switch (asic_gen) {
        case AMDGPU_PCIE_GEN1:
                return AMDGPU_PCIE_GEN1;
        case AMDGPU_PCIE_GEN2:
                return AMDGPU_PCIE_GEN2;
        case AMDGPU_PCIE_GEN3:
                return AMDGPU_PCIE_GEN3;
        default:
                if ((sys_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3) &&
                    (default_gen == AMDGPU_PCIE_GEN3))
                        return AMDGPU_PCIE_GEN3;
                else if ((sys_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2) &&
                         (default_gen == AMDGPU_PCIE_GEN2))
                        return AMDGPU_PCIE_GEN2;
                else
                        return AMDGPU_PCIE_GEN1;
        }
        return AMDGPU_PCIE_GEN1;
}

u16 amdgpu_get_pcie_lane_support(struct amdgpu_device *adev,
                                 u16 asic_lanes,
                                 u16 default_lanes)
{
        switch (asic_lanes) {
        case 0:
        default:
                return default_lanes;
        case 1:
                return 1;
        case 2:
                return 2;
        case 4:
                return 4;
        case 8:
                return 8;
        case 12:
                return 12;
        case 16:
                return 16;
        }
}

u8 amdgpu_encode_pci_lane_width(u32 lanes)
{
        u8 encoded_lanes[] = { 0, 1, 2, 0, 3, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 6 };

        if (lanes > 16)
                return 0;

        return encoded_lanes[lanes];
}

struct amd_vce_state*
amdgpu_get_vce_clock_state(void *handle, u32 idx)
{
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;

        if (idx < adev->pm.dpm.num_of_vce_states)
                return &adev->pm.dpm.vce_states[idx];

        return NULL;
}