/*
 * Copyright 2017 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: Rafał Miłecki <zajec5@gmail.com>
 *          Alex Deucher <alexdeucher@gmail.com>
 */

#include <drm/drm_debugfs.h>

#include "amdgpu.h"
#include "amdgpu_drv.h"
#include "amdgpu_pm.h"
#include "amdgpu_dpm.h"
#include "amdgpu_smu.h"
#include "atom.h"
#include <linux/pci.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/nospec.h>
#include <linux/pm_runtime.h>
#include "hwmgr.h"

static const struct cg_flag_name clocks[] = {
        {AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_GFX_MGLS, "Graphics Medium Grain memory Light Sleep"},
        {AMD_CG_SUPPORT_GFX_CGCG, "Graphics Coarse Grain Clock Gating"},
        {AMD_CG_SUPPORT_GFX_CGLS, "Graphics Coarse Grain memory Light Sleep"},
        {AMD_CG_SUPPORT_GFX_CGTS, "Graphics Coarse Grain Tree Shader Clock Gating"},
        {AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"},
        {AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"},
        {AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"},
        {AMD_CG_SUPPORT_GFX_3D_CGCG, "Graphics 3D Coarse Grain Clock Gating"},
        {AMD_CG_SUPPORT_GFX_3D_CGLS, "Graphics 3D Coarse Grain memory Light Sleep"},
        {AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"},
        {AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"},
        {AMD_CG_SUPPORT_SDMA_MGCG, "System Direct Memory Access Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_BIF_MGCG, "Bus Interface Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_BIF_LS, "Bus Interface Light Sleep"},
        {AMD_CG_SUPPORT_UVD_MGCG, "Unified Video Decoder Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_VCE_MGCG, "Video Compression Engine Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_HDP_LS, "Host Data Path Light Sleep"},
        {AMD_CG_SUPPORT_HDP_MGCG, "Host Data Path Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_DRM_MGCG, "Digital Right Management Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_DRM_LS, "Digital Right Management Light Sleep"},
        {AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_DF_MGCG, "Data Fabric Medium Grain Clock Gating"},

        {AMD_CG_SUPPORT_ATHUB_MGCG, "Address Translation Hub Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_ATHUB_LS, "Address Translation Hub Light Sleep"},
        {0, NULL},
};

static const struct hwmon_temp_label {
        enum PP_HWMON_TEMP channel;
        const char *label;
} temp_label[] = {
        {PP_TEMP_EDGE, "edge"},
        {PP_TEMP_JUNCTION, "junction"},
        {PP_TEMP_MEM, "mem"},
};

/**
 * DOC: power_dpm_state
 *
 * The power_dpm_state file is a legacy interface and is only provided for
 * backwards compatibility. The amdgpu driver provides a sysfs API for adjusting
 * certain power related parameters.  The file power_dpm_state is used for this.
 * It accepts the following arguments:
 *
 * - battery
 *
 * - balanced
 *
 * - performance
 *
 * battery
 *
 * On older GPUs, the vbios provided a special power state for battery
 * operation.  Selecting battery switched to this state.  This is no
 * longer provided on newer GPUs so the option does nothing in that case.
 *
 * balanced
 *
 * On older GPUs, the vbios provided a special power state for balanced
 * operation.  Selecting balanced switched to this state.  This is no
 * longer provided on newer GPUs so the option does nothing in that case.
 *
 * performance
 *
 * On older GPUs, the vbios provided a special power state for performance
 * operation.  Selecting performance switched to this state.  This is no
 * longer provided on newer GPUs so the option does nothing in that case.
 *
 */

static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
                                          struct device_attribute *attr,
                                          char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        enum amd_pm_state_type pm;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                if (adev->smu.ppt_funcs->get_current_power_state)
                        pm = smu_get_current_power_state(&adev->smu);
                else
                        pm = adev->pm.dpm.user_state;
        } else if (adev->powerplay.pp_funcs->get_current_power_state) {
                pm = amdgpu_dpm_get_current_power_state(adev);
        } else {
                pm = adev->pm.dpm.user_state;
        }

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return snprintf(buf, PAGE_SIZE, "%s\n",
                        (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
                        (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
}

static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
                                          struct device_attribute *attr,
                                          const char *buf,
                                          size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        enum amd_pm_state_type  state;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (strncmp("battery", buf, strlen("battery")) == 0)
                state = POWER_STATE_TYPE_BATTERY;
        else if (strncmp("balanced", buf, strlen("balanced")) == 0)
                state = POWER_STATE_TYPE_BALANCED;
        else if (strncmp("performance", buf, strlen("performance")) == 0)
                state = POWER_STATE_TYPE_PERFORMANCE;
        else
                return -EINVAL;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                mutex_lock(&adev->pm.mutex);
                adev->pm.dpm.user_state = state;
                mutex_unlock(&adev->pm.mutex);
        } else if (adev->powerplay.pp_funcs->dispatch_tasks) {
                amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_ENABLE_USER_STATE, &state);
        } else {
                mutex_lock(&adev->pm.mutex);
                adev->pm.dpm.user_state = state;
                mutex_unlock(&adev->pm.mutex);

                amdgpu_pm_compute_clocks(adev);
        }
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}


/**
 * DOC: power_dpm_force_performance_level
 *
 * The amdgpu driver provides a sysfs API for adjusting certain power
 * related parameters.  The file power_dpm_force_performance_level is
 * used for this.  It accepts the following arguments:
 *
 * - auto
 *
 * - low
 *
 * - high
 *
 * - manual
 *
 * - profile_standard
 *
 * - profile_min_sclk
 *
 * - profile_min_mclk
 *
 * - profile_peak
 *
 * auto
 *
 * When auto is selected, the driver will attempt to dynamically select
 * the optimal power profile for current conditions in the driver.
 *
 * low
 *
 * When low is selected, the clocks are forced to the lowest power state.
 *
 * high
 *
 * When high is selected, the clocks are forced to the highest power state.
 *
 * manual
 *
 * When manual is selected, the user can manually adjust which power states
 * are enabled for each clock domain via the sysfs pp_dpm_mclk, pp_dpm_sclk,
 * and pp_dpm_pcie files and adjust the power state transition heuristics
 * via the pp_power_profile_mode sysfs file.
 *
 * profile_standard
 * profile_min_sclk
 * profile_min_mclk
 * profile_peak
 *
 * When the profiling modes are selected, clock and power gating are
 * disabled and the clocks are set for different profiling cases. This
 * mode is recommended for profiling specific work loads where you do
 * not want clock or power gating for clock fluctuation to interfere
 * with your results. profile_standard sets the clocks to a fixed clock
 * level which varies from asic to asic.  profile_min_sclk forces the sclk
 * to the lowest level.  profile_min_mclk forces the mclk to the lowest level.
 * profile_peak sets all clocks (mclk, sclk, pcie) to the highest levels.
 *
 */

static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
                                                            struct device_attribute *attr,
                                                            char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        enum amd_dpm_forced_level level = 0xff;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                level = smu_get_performance_level(&adev->smu);
        else if (adev->powerplay.pp_funcs->get_performance_level)
                level = amdgpu_dpm_get_performance_level(adev);
        else
                level = adev->pm.dpm.forced_level;

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return snprintf(buf, PAGE_SIZE, "%s\n",
                        (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
                        (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
                        (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
                        (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" :
                        (level == AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD) ? "profile_standard" :
                        (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" :
                        (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" :
                        (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" :
                        "unknown");
}

static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
                                                            struct device_attribute *attr,
                                                            const char *buf,
                                                            size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        enum amd_dpm_forced_level level;
        enum amd_dpm_forced_level current_level = 0xff;
        int ret = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (strncmp("low", buf, strlen("low")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_LOW;
        } else if (strncmp("high", buf, strlen("high")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_HIGH;
        } else if (strncmp("auto", buf, strlen("auto")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_AUTO;
        } else if (strncmp("manual", buf, strlen("manual")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_MANUAL;
        } else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT;
        } else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD;
        } else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK;
        } else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK;
        } else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) {
                level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
        }  else {
                return -EINVAL;
        }

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                current_level = smu_get_performance_level(&adev->smu);
        else if (adev->powerplay.pp_funcs->get_performance_level)
                current_level = amdgpu_dpm_get_performance_level(adev);

        if (current_level == level) {
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
                return count;
        }

        if (adev->asic_type == CHIP_RAVEN) {
                if (!(adev->apu_flags & AMD_APU_IS_RAVEN2)) {
                        if (current_level != AMD_DPM_FORCED_LEVEL_MANUAL && level == AMD_DPM_FORCED_LEVEL_MANUAL)
                                amdgpu_gfx_off_ctrl(adev, false);
                        else if (current_level == AMD_DPM_FORCED_LEVEL_MANUAL && level != AMD_DPM_FORCED_LEVEL_MANUAL)
                                amdgpu_gfx_off_ctrl(adev, true);
                }
        }

        /* profile_exit setting is valid only when current mode is in profile mode */
        if (!(current_level & (AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
            AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
            AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
            AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)) &&
            (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)) {
                pr_err("Currently not in any profile mode!\n");
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
                return -EINVAL;
        }

        if (is_support_sw_smu(adev)) {
                ret = smu_force_performance_level(&adev->smu, level);
                if (ret) {
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                }
        } else if (adev->powerplay.pp_funcs->force_performance_level) {
                mutex_lock(&adev->pm.mutex);
                if (adev->pm.dpm.thermal_active) {
                        mutex_unlock(&adev->pm.mutex);
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                }
                ret = amdgpu_dpm_force_performance_level(adev, level);
                if (ret) {
                        mutex_unlock(&adev->pm.mutex);
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                } else {
                        adev->pm.dpm.forced_level = level;
                }
                mutex_unlock(&adev->pm.mutex);
        }
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

static ssize_t amdgpu_get_pp_num_states(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        struct pp_states_info data;
        int i, buf_len, ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                ret = smu_get_power_num_states(&adev->smu, &data);
                if (ret)
                        return ret;
        } else if (adev->powerplay.pp_funcs->get_pp_num_states) {
                amdgpu_dpm_get_pp_num_states(adev, &data);
        } else {
                memset(&data, 0, sizeof(data));
        }

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        buf_len = snprintf(buf, PAGE_SIZE, "states: %d\n", data.nums);
        for (i = 0; i < data.nums; i++)
                buf_len += snprintf(buf + buf_len, PAGE_SIZE, "%d %s\n", i,
                                (data.states[i] == POWER_STATE_TYPE_INTERNAL_BOOT) ? "boot" :
                                (data.states[i] == POWER_STATE_TYPE_BATTERY) ? "battery" :
                                (data.states[i] == POWER_STATE_TYPE_BALANCED) ? "balanced" :
                                (data.states[i] == POWER_STATE_TYPE_PERFORMANCE) ? "performance" : "default");

        return buf_len;
}

static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        struct pp_states_info data;
        struct smu_context *smu = &adev->smu;
        enum amd_pm_state_type pm = 0;
        int i = 0, ret = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                pm = smu_get_current_power_state(smu);
                ret = smu_get_power_num_states(smu, &data);
                if (ret)
                        return ret;
        } else if (adev->powerplay.pp_funcs->get_current_power_state
                 && adev->powerplay.pp_funcs->get_pp_num_states) {
                pm = amdgpu_dpm_get_current_power_state(adev);
                amdgpu_dpm_get_pp_num_states(adev, &data);
        }

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        for (i = 0; i < data.nums; i++) {
                if (pm == data.states[i])
                        break;
        }

        if (i == data.nums)
                i = -EINVAL;

        return snprintf(buf, PAGE_SIZE, "%d\n", i);
}

static ssize_t amdgpu_get_pp_force_state(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (adev->pp_force_state_enabled)
                return amdgpu_get_pp_cur_state(dev, attr, buf);
        else
                return snprintf(buf, PAGE_SIZE, "\n");
}

static ssize_t amdgpu_set_pp_force_state(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        enum amd_pm_state_type state = 0;
        unsigned long idx;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (strlen(buf) == 1)
                adev->pp_force_state_enabled = false;
        else if (is_support_sw_smu(adev))
                adev->pp_force_state_enabled = false;
        else if (adev->powerplay.pp_funcs->dispatch_tasks &&
                        adev->powerplay.pp_funcs->get_pp_num_states) {
                struct pp_states_info data;

                ret = kstrtoul(buf, 0, &idx);
                if (ret || idx >= ARRAY_SIZE(data.states))
                        return -EINVAL;

                idx = array_index_nospec(idx, ARRAY_SIZE(data.states));

                amdgpu_dpm_get_pp_num_states(adev, &data);
                state = data.states[idx];

                ret = pm_runtime_get_sync(ddev->dev);
                if (ret < 0) {
                        pm_runtime_put_autosuspend(ddev->dev);
                        return ret;
                }

                /* only set user selected power states */
                if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
                    state != POWER_STATE_TYPE_DEFAULT) {
                        amdgpu_dpm_dispatch_task(adev,
                                        AMD_PP_TASK_ENABLE_USER_STATE, &state);
                        adev->pp_force_state_enabled = true;
                }
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
        }

        return count;
}

/**
 * DOC: pp_table
 *
 * The amdgpu driver provides a sysfs API for uploading new powerplay
 * tables.  The file pp_table is used for this.  Reading the file
 * will dump the current power play table.  Writing to the file
 * will attempt to upload a new powerplay table and re-initialize
 * powerplay using that new table.
 *
 */

static ssize_t amdgpu_get_pp_table(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        char *table = NULL;
        int size, ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                size = smu_sys_get_pp_table(&adev->smu, (void **)&table);
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
                if (size < 0)
                        return size;
        } else if (adev->powerplay.pp_funcs->get_pp_table) {
                size = amdgpu_dpm_get_pp_table(adev, &table);
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
                if (size < 0)
                        return size;
        } else {
                pm_runtime_mark_last_busy(ddev->dev);
                pm_runtime_put_autosuspend(ddev->dev);
                return 0;
        }

        if (size >= PAGE_SIZE)
                size = PAGE_SIZE - 1;

        memcpy(buf, table, size);

        return size;
}

static ssize_t amdgpu_set_pp_table(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                ret = smu_sys_set_pp_table(&adev->smu, (void *)buf, count);
                if (ret) {
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return ret;
                }
        } else if (adev->powerplay.pp_funcs->set_pp_table)
                amdgpu_dpm_set_pp_table(adev, buf, count);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

/**
 * DOC: pp_od_clk_voltage
 *
 * The amdgpu driver provides a sysfs API for adjusting the clocks and voltages
 * in each power level within a power state.  The pp_od_clk_voltage is used for
 * this.
 *
 * Note that the actual memory controller clock rate are exposed, not
 * the effective memory clock of the DRAMs. To translate it, use the
 * following formula:
 *
 * Clock conversion (Mhz):
 *
 * HBM: effective_memory_clock = memory_controller_clock * 1
 *
 * G5: effective_memory_clock = memory_controller_clock * 1
 *
 * G6: effective_memory_clock = memory_controller_clock * 2
 *
 * DRAM data rate (MT/s):
 *
 * HBM: effective_memory_clock * 2 = data_rate
 *
 * G5: effective_memory_clock * 4 = data_rate
 *
 * G6: effective_memory_clock * 8 = data_rate
 *
 * Bandwidth (MB/s):
 *
 * data_rate * vram_bit_width / 8 = memory_bandwidth
 *
 * Some examples:
 *
 * G5 on RX460:
 *
 * memory_controller_clock = 1750 Mhz
 *
 * effective_memory_clock = 1750 Mhz * 1 = 1750 Mhz
 *
 * data rate = 1750 * 4 = 7000 MT/s
 *
 * memory_bandwidth = 7000 * 128 bits / 8 = 112000 MB/s
 *
 * G6 on RX5700:
 *
 * memory_controller_clock = 875 Mhz
 *
 * effective_memory_clock = 875 Mhz * 2 = 1750 Mhz
 *
 * data rate = 1750 * 8 = 14000 MT/s
 *
 * memory_bandwidth = 14000 * 256 bits / 8 = 448000 MB/s
 *
 * < For Vega10 and previous ASICs >
 *
 * Reading the file will display:
 *
 * - a list of engine clock levels and voltages labeled OD_SCLK
 *
 * - a list of memory clock levels and voltages labeled OD_MCLK
 *
 * - a list of valid ranges for sclk, mclk, and voltage labeled OD_RANGE
 *
 * To manually adjust these settings, first select manual using
 * power_dpm_force_performance_level. Enter a new value for each
 * level by writing a string that contains "s/m level clock voltage" to
 * the file.  E.g., "s 1 500 820" will update sclk level 1 to be 500 MHz
 * at 820 mV; "m 0 350 810" will update mclk level 0 to be 350 MHz at
 * 810 mV.  When you have edited all of the states as needed, write
 * "c" (commit) to the file to commit your changes.  If you want to reset to the
 * default power levels, write "r" (reset) to the file to reset them.
 *
 *
 * < For Vega20 and newer ASICs >
 *
 * Reading the file will display:
 *
 * - minimum and maximum engine clock labeled OD_SCLK
 *
 * - maximum memory clock labeled OD_MCLK
 *
 * - three <frequency, voltage> points labeled OD_VDDC_CURVE.
 *   They can be used to calibrate the sclk voltage curve.
 *
 * - a list of valid ranges for sclk, mclk, and voltage curve points
 *   labeled OD_RANGE
 *
 * To manually adjust these settings:
 *
 * - First select manual using power_dpm_force_performance_level
 *
 * - For clock frequency setting, enter a new value by writing a
 *   string that contains "s/m index clock" to the file. The index
 *   should be 0 if to set minimum clock. And 1 if to set maximum
 *   clock. E.g., "s 0 500" will update minimum sclk to be 500 MHz.
 *   "m 1 800" will update maximum mclk to be 800Mhz.
 *
 *   For sclk voltage curve, enter the new values by writing a
 *   string that contains "vc point clock voltage" to the file. The
 *   points are indexed by 0, 1 and 2. E.g., "vc 0 300 600" will
 *   update point1 with clock set as 300Mhz and voltage as
 *   600mV. "vc 2 1000 1000" will update point3 with clock set
 *   as 1000Mhz and voltage 1000mV.
 *
 * - When you have edited all of the states as needed, write "c" (commit)
 *   to the file to commit your changes
 *
 * - If you want to reset to the default power levels, write "r" (reset)
 *   to the file to reset them
 *
 */

static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t parameter_size = 0;
        long parameter[64];
        char buf_cpy[128];
        char *tmp_str;
        char *sub_str;
        const char delimiter[3] = {' ', '\n', '\0'};
        uint32_t type;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (count > 127)
                return -EINVAL;

        if (*buf == 's')
                type = PP_OD_EDIT_SCLK_VDDC_TABLE;
        else if (*buf == 'm')
                type = PP_OD_EDIT_MCLK_VDDC_TABLE;
        else if(*buf == 'r')
                type = PP_OD_RESTORE_DEFAULT_TABLE;
        else if (*buf == 'c')
                type = PP_OD_COMMIT_DPM_TABLE;
        else if (!strncmp(buf, "vc", 2))
                type = PP_OD_EDIT_VDDC_CURVE;
        else
                return -EINVAL;

        memcpy(buf_cpy, buf, count+1);

        tmp_str = buf_cpy;

        if (type == PP_OD_EDIT_VDDC_CURVE)
                tmp_str++;
        while (isspace(*++tmp_str));

        while (tmp_str[0]) {
                sub_str = strsep(&tmp_str, delimiter);
                ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
                if (ret)
                        return -EINVAL;
                parameter_size++;

                while (isspace(*tmp_str))
                        tmp_str++;
        }

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                ret = smu_od_edit_dpm_table(&adev->smu, type,
                                            parameter, parameter_size);

                if (ret) {
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                }
        } else {

                if (adev->powerplay.pp_funcs->set_fine_grain_clk_vol) {
                        ret = amdgpu_dpm_set_fine_grain_clk_vol(adev, type,
                                                                parameter,
                                                                parameter_size);
                        if (ret) {
                                pm_runtime_mark_last_busy(ddev->dev);
                                pm_runtime_put_autosuspend(ddev->dev);
                                return -EINVAL;
                        }
                }

                if (adev->powerplay.pp_funcs->odn_edit_dpm_table) {
                        ret = amdgpu_dpm_odn_edit_dpm_table(adev, type,
                                                parameter, parameter_size);
                        if (ret) {
                                pm_runtime_mark_last_busy(ddev->dev);
                                pm_runtime_put_autosuspend(ddev->dev);
                                return -EINVAL;
                        }
                }

                if (type == PP_OD_COMMIT_DPM_TABLE) {
                        if (adev->powerplay.pp_funcs->dispatch_tasks) {
                                amdgpu_dpm_dispatch_task(adev,
                                                AMD_PP_TASK_READJUST_POWER_STATE,
                                                NULL);
                                pm_runtime_mark_last_busy(ddev->dev);
                                pm_runtime_put_autosuspend(ddev->dev);
                                return count;
                        } else {
                                pm_runtime_mark_last_busy(ddev->dev);
                                pm_runtime_put_autosuspend(ddev->dev);
                                return -EINVAL;
                        }
                }
        }
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                size = smu_print_clk_levels(&adev->smu, SMU_OD_SCLK, buf);
                size += smu_print_clk_levels(&adev->smu, SMU_OD_MCLK, buf+size);
                size += smu_print_clk_levels(&adev->smu, SMU_OD_VDDC_CURVE, buf+size);
                size += smu_print_clk_levels(&adev->smu, SMU_OD_RANGE, buf+size);
        } else if (adev->powerplay.pp_funcs->print_clock_levels) {
                size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
                size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK, buf+size);
                size += amdgpu_dpm_print_clock_levels(adev, OD_VDDC_CURVE, buf+size);
                size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE, buf+size);
        } else {
                size = snprintf(buf, PAGE_SIZE, "\n");
        }
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

/**
 * DOC: pp_features
 *
 * The amdgpu driver provides a sysfs API for adjusting what powerplay
 * features to be enabled. The file pp_features is used for this. And
 * this is only available for Vega10 and later dGPUs.
 *
 * Reading back the file will show you the followings:
 * - Current ppfeature masks
 * - List of the all supported powerplay features with their naming,
 *   bitmasks and enablement status('Y'/'N' means "enabled"/"disabled").
 *
 * To manually enable or disable a specific feature, just set or clear
 * the corresponding bit from original ppfeature masks and input the
 * new ppfeature masks.
 */
static ssize_t amdgpu_set_pp_features(struct device *dev,
                                      struct device_attribute *attr,
                                      const char *buf,
                                      size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint64_t featuremask;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = kstrtou64(buf, 0, &featuremask);
        if (ret)
                return -EINVAL;

        pr_debug("featuremask = 0x%llx\n", featuremask);

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                ret = smu_sys_set_pp_feature_mask(&adev->smu, featuremask);
                if (ret) {
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                }
        } else if (adev->powerplay.pp_funcs->set_ppfeature_status) {
                ret = amdgpu_dpm_set_ppfeature_status(adev, featuremask);
                if (ret) {
                        pm_runtime_mark_last_busy(ddev->dev);
                        pm_runtime_put_autosuspend(ddev->dev);
                        return -EINVAL;
                }
        }
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

static ssize_t amdgpu_get_pp_features(struct device *dev,
                                      struct device_attribute *attr,
                                      char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_sys_get_pp_feature_mask(&adev->smu, buf);
        else if (adev->powerplay.pp_funcs->get_ppfeature_status)
                size = amdgpu_dpm_get_ppfeature_status(adev, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;

}

/**
 * DOC: pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie
 *
 * The amdgpu driver provides a sysfs API for adjusting what power levels
 * are enabled for a given power state.  The files pp_dpm_sclk, pp_dpm_mclk,
 * pp_dpm_socclk, pp_dpm_fclk, pp_dpm_dcefclk and pp_dpm_pcie are used for
 * this.
 *
 * pp_dpm_socclk and pp_dpm_dcefclk interfaces are only available for
 * Vega10 and later ASICs.
 * pp_dpm_fclk interface is only available for Vega20 and later ASICs.
 *
 * Reading back the files will show you the available power levels within
 * the power state and the clock information for those levels.
 *
 * To manually adjust these states, first select manual using
 * power_dpm_force_performance_level.
 * Secondly, enter a new value for each level by inputing a string that
 * contains " echo xx xx xx > pp_dpm_sclk/mclk/pcie"
 * E.g.,
 *
 * .. code-block:: bash
 *
 *      echo "4 5 6" > pp_dpm_sclk
 *
 * will enable sclk levels 4, 5, and 6.
 *
 * NOTE: change to the dcefclk max dpm level is not supported now
 */

static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_SCLK, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_SCLK, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

/*
 * Worst case: 32 bits individually specified, in octal at 12 characters
 * per line (+1 for \n).
 */
#define AMDGPU_MASK_BUF_MAX     (32 * 13)

static ssize_t amdgpu_read_mask(const char *buf, size_t count, uint32_t *mask)
{
        int ret;
        long level;
        char *sub_str = NULL;
        char *tmp;
        char buf_cpy[AMDGPU_MASK_BUF_MAX + 1];
        const char delimiter[3] = {' ', '\n', '\0'};
        size_t bytes;

        *mask = 0;

        bytes = min(count, sizeof(buf_cpy) - 1);
        memcpy(buf_cpy, buf, bytes);
        buf_cpy[bytes] = '\0';
        tmp = buf_cpy;
        while (tmp[0]) {
                sub_str = strsep(&tmp, delimiter);
                if (strlen(sub_str)) {
                        ret = kstrtol(sub_str, 0, &level);
                        if (ret)
                                return -EINVAL;
                        *mask |= 1 << level;
                } else
                        break;
        }

        return 0;
}

static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t mask = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_SCLK, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_MCLK, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_MCLK, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint32_t mask = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_MCLK, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_SOCCLK, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_SOCCLK, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t mask = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_SOCCLK, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_SOCCLK, mask);
        else
                ret = 0;

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_FCLK, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_FCLK, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t mask = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_FCLK, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_FCLK, mask);
        else
                ret = 0;

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_DCEFCLK, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_DCEFCLK, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t mask = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_DCEFCLK, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_DCEFCLK, mask);
        else
                ret = 0;

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_print_clk_levels(&adev->smu, SMU_PCIE, buf);
        else if (adev->powerplay.pp_funcs->print_clock_levels)
                size = amdgpu_dpm_print_clock_levels(adev, PP_PCIE, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        uint32_t mask = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = amdgpu_read_mask(buf, count, &mask);
        if (ret)
                return ret;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_force_clk_levels(&adev->smu, SMU_PCIE, mask);
        else if (adev->powerplay.pp_funcs->force_clock_level)
                ret = amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask);
        else
                ret = 0;

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (ret)
                return -EINVAL;

        return count;
}

static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint32_t value = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                value = smu_get_od_percentage(&(adev->smu), SMU_OD_SCLK);
        else if (adev->powerplay.pp_funcs->get_sclk_od)
                value = amdgpu_dpm_get_sclk_od(adev);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return snprintf(buf, PAGE_SIZE, "%d\n", value);
}

static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        long int value;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = kstrtol(buf, 0, &value);

        if (ret)
                return -EINVAL;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                value = smu_set_od_percentage(&(adev->smu), SMU_OD_SCLK, (uint32_t)value);
        } else {
                if (adev->powerplay.pp_funcs->set_sclk_od)
                        amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);

                if (adev->powerplay.pp_funcs->dispatch_tasks) {
                        amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL);
                } else {
                        adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
                        amdgpu_pm_compute_clocks(adev);
                }
        }

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint32_t value = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                value = smu_get_od_percentage(&(adev->smu), SMU_OD_MCLK);
        else if (adev->powerplay.pp_funcs->get_mclk_od)
                value = amdgpu_dpm_get_mclk_od(adev);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return snprintf(buf, PAGE_SIZE, "%d\n", value);
}

static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int ret;
        long int value;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = kstrtol(buf, 0, &value);

        if (ret)
                return -EINVAL;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                value = smu_set_od_percentage(&(adev->smu), SMU_OD_MCLK, (uint32_t)value);
        } else {
                if (adev->powerplay.pp_funcs->set_mclk_od)
                        amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);

                if (adev->powerplay.pp_funcs->dispatch_tasks) {
                        amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL);
                } else {
                        adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
                        amdgpu_pm_compute_clocks(adev);
                }
        }

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return count;
}

/**
 * DOC: pp_power_profile_mode
 *
 * The amdgpu driver provides a sysfs API for adjusting the heuristics
 * related to switching between power levels in a power state.  The file
 * pp_power_profile_mode is used for this.
 *
 * Reading this file outputs a list of all of the predefined power profiles
 * and the relevant heuristics settings for that profile.
 *
 * To select a profile or create a custom profile, first select manual using
 * power_dpm_force_performance_level.  Writing the number of a predefined
 * profile to pp_power_profile_mode will enable those heuristics.  To
 * create a custom set of heuristics, write a string of numbers to the file
 * starting with the number of the custom profile along with a setting
 * for each heuristic parameter.  Due to differences across asic families
 * the heuristic parameters vary from family to family.
 *
 */

static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        ssize_t size;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_get_power_profile_mode(&adev->smu, buf);
        else if (adev->powerplay.pp_funcs->get_power_profile_mode)
                size = amdgpu_dpm_get_power_profile_mode(adev, buf);
        else
                size = snprintf(buf, PAGE_SIZE, "\n");

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}


static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        int ret;
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint32_t parameter_size = 0;
        long parameter[64];
        char *sub_str, buf_cpy[128];
        char *tmp_str;
        uint32_t i = 0;
        char tmp[2];
        long int profile_mode = 0;
        const char delimiter[3] = {' ', '\n', '\0'};

        if (amdgpu_in_reset(adev))
                return -EPERM;

        tmp[0] = *(buf);
        tmp[1] = '\0';
        ret = kstrtol(tmp, 0, &profile_mode);
        if (ret)
                return -EINVAL;

        if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
                if (count < 2 || count > 127)
                        return -EINVAL;
                while (isspace(*++buf))
                        i++;
                memcpy(buf_cpy, buf, count-i);
                tmp_str = buf_cpy;
                while (tmp_str[0]) {
                        sub_str = strsep(&tmp_str, delimiter);
                        ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
                        if (ret)
                                return -EINVAL;
                        parameter_size++;
                        while (isspace(*tmp_str))
                                tmp_str++;
                }
        }
        parameter[parameter_size] = profile_mode;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                ret = smu_set_power_profile_mode(&adev->smu, parameter, parameter_size, true);
        else if (adev->powerplay.pp_funcs->set_power_profile_mode)
                ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (!ret)
                return count;

        return -EINVAL;
}

/**
 * DOC: gpu_busy_percent
 *
 * The amdgpu driver provides a sysfs API for reading how busy the GPU
 * is as a percentage.  The file gpu_busy_percent is used for this.
 * The SMU firmware computes a percentage of load based on the
 * aggregate activity level in the IP cores.
 */
static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
                                           struct device_attribute *attr,
                                           char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int r, value, size = sizeof(value);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(ddev->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return r;
        }

        /* read the IP busy sensor */
        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD,
                                   (void *)&value, &size);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", value);
}

/**
 * DOC: mem_busy_percent
 *
 * The amdgpu driver provides a sysfs API for reading how busy the VRAM
 * is as a percentage.  The file mem_busy_percent is used for this.
 * The SMU firmware computes a percentage of load based on the
 * aggregate activity level in the IP cores.
 */
static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
                                           struct device_attribute *attr,
                                           char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        int r, value, size = sizeof(value);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(ddev->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return r;
        }

        /* read the IP busy sensor */
        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD,
                                   (void *)&value, &size);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", value);
}

/**
 * DOC: pcie_bw
 *
 * The amdgpu driver provides a sysfs API for estimating how much data
 * has been received and sent by the GPU in the last second through PCIe.
 * The file pcie_bw is used for this.
 * The Perf counters count the number of received and sent messages and return
 * those values, as well as the maximum payload size of a PCIe packet (mps).
 * Note that it is not possible to easily and quickly obtain the size of each
 * packet transmitted, so we output the max payload size (mps) to allow for
 * quick estimation of the PCIe bandwidth usage
 */
static ssize_t amdgpu_get_pcie_bw(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        uint64_t count0 = 0, count1 = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (adev->flags & AMD_IS_APU)
                return -ENODATA;

        if (!adev->asic_funcs->get_pcie_usage)
                return -ENODATA;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        amdgpu_asic_get_pcie_usage(adev, &count0, &count1);

        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return snprintf(buf, PAGE_SIZE, "%llu %llu %i\n",
                        count0, count1, pcie_get_mps(adev->pdev));
}

/**
 * DOC: unique_id
 *
 * The amdgpu driver provides a sysfs API for providing a unique ID for the GPU
 * The file unique_id is used for this.
 * This will provide a Unique ID that will persist from machine to machine
 *
 * NOTE: This will only work for GFX9 and newer. This file will be absent
 * on unsupported ASICs (GFX8 and older)
 */
static ssize_t amdgpu_get_unique_id(struct device *dev,
                struct device_attribute *attr,
                char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (adev->unique_id)
                return snprintf(buf, PAGE_SIZE, "%016llx\n", adev->unique_id);

        return 0;
}

/**
 * DOC: thermal_throttling_logging
 *
 * Thermal throttling pulls down the clock frequency and thus the performance.
 * It's an useful mechanism to protect the chip from overheating. Since it
 * impacts performance, the user controls whether it is enabled and if so,
 * the log frequency.
 *
 * Reading back the file shows you the status(enabled or disabled) and
 * the interval(in seconds) between each thermal logging.
 *
 * Writing an integer to the file, sets a new logging interval, in seconds.
 * The value should be between 1 and 3600. If the value is less than 1,
 * thermal logging is disabled. Values greater than 3600 are ignored.
 */
static ssize_t amdgpu_get_thermal_throttling_logging(struct device *dev,
                                                     struct device_attribute *attr,
                                                     char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);

        return snprintf(buf, PAGE_SIZE, "%s: thermal throttling logging %s, with interval %d seconds\n",
                        adev_to_drm(adev)->unique,
                        atomic_read(&adev->throttling_logging_enabled) ? "enabled" : "disabled",
                        adev->throttling_logging_rs.interval / HZ + 1);
}

static ssize_t amdgpu_set_thermal_throttling_logging(struct device *dev,
                                                     struct device_attribute *attr,
                                                     const char *buf,
                                                     size_t count)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        long throttling_logging_interval;
        unsigned long flags;
        int ret = 0;

        ret = kstrtol(buf, 0, &throttling_logging_interval);
        if (ret)
                return ret;

        if (throttling_logging_interval > 3600)
                return -EINVAL;

        if (throttling_logging_interval > 0) {
                raw_spin_lock_irqsave(&adev->throttling_logging_rs.lock, flags);
                /*
                 * Reset the ratelimit timer internals.
                 * This can effectively restart the timer.
                 */
                adev->throttling_logging_rs.interval =
                        (throttling_logging_interval - 1) * HZ;
                adev->throttling_logging_rs.begin = 0;
                adev->throttling_logging_rs.printed = 0;
                adev->throttling_logging_rs.missed = 0;
                raw_spin_unlock_irqrestore(&adev->throttling_logging_rs.lock, flags);

                atomic_set(&adev->throttling_logging_enabled, 1);
        } else {
                atomic_set(&adev->throttling_logging_enabled, 0);
        }

        return count;
}

/**
 * DOC: gpu_metrics
 *
 * The amdgpu driver provides a sysfs API for retrieving current gpu
 * metrics data. The file gpu_metrics is used for this. Reading the
 * file will dump all the current gpu metrics data.
 *
 * These data include temperature, frequency, engines utilization,
 * power consume, throttler status, fan speed and cpu core statistics(
 * available for APU only). That's it will give a snapshot of all sensors
 * at the same time.
 */
static ssize_t amdgpu_get_gpu_metrics(struct device *dev,
                                      struct device_attribute *attr,
                                      char *buf)
{
        struct drm_device *ddev = dev_get_drvdata(dev);
        struct amdgpu_device *adev = drm_to_adev(ddev);
        void *gpu_metrics;
        ssize_t size = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(ddev->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(ddev->dev);
                return ret;
        }

        if (is_support_sw_smu(adev))
                size = smu_sys_get_gpu_metrics(&adev->smu, &gpu_metrics);
        else if (adev->powerplay.pp_funcs->get_gpu_metrics)
                size = amdgpu_dpm_get_gpu_metrics(adev, &gpu_metrics);

        if (size <= 0)
                goto out;

        if (size >= PAGE_SIZE)
                size = PAGE_SIZE - 1;

        memcpy(buf, gpu_metrics, size);

out:
        pm_runtime_mark_last_busy(ddev->dev);
        pm_runtime_put_autosuspend(ddev->dev);

        return size;
}

static struct amdgpu_device_attr amdgpu_device_attrs[] = {
        AMDGPU_DEVICE_ATTR_RW(power_dpm_state,                          ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
        AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level,        ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(pp_num_states,                            ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(pp_cur_state,                             ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_force_state,                           ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_table,                                 ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_sclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_mclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_socclk,                            ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_fclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_dcefclk,                           ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_dpm_pcie,                              ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_sclk_od,                               ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_mclk_od,                               ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_power_profile_mode,                    ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage,                        ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(gpu_busy_percent,                         ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(mem_busy_percent,                         ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(pcie_bw,                                  ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(pp_features,                              ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(unique_id,                                ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RW(thermal_throttling_logging,               ATTR_FLAG_BASIC),
        AMDGPU_DEVICE_ATTR_RO(gpu_metrics,                              ATTR_FLAG_BASIC),
};

static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
                               uint32_t mask, enum amdgpu_device_attr_states *states)
{
        struct device_attribute *dev_attr = &attr->dev_attr;
        const char *attr_name = dev_attr->attr.name;
        struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
        enum amd_asic_type asic_type = adev->asic_type;

        if (!(attr->flags & mask)) {
                *states = ATTR_STATE_UNSUPPORTED;
                return 0;
        }

#define DEVICE_ATTR_IS(_name)   (!strcmp(attr_name, #_name))

        if (DEVICE_ATTR_IS(pp_dpm_socclk)) {
                if (asic_type < CHIP_VEGA10)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
                if (asic_type < CHIP_VEGA10 || asic_type == CHIP_ARCTURUS)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
                if (asic_type < CHIP_VEGA20)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pp_dpm_pcie)) {
                if (asic_type == CHIP_ARCTURUS)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
                *states = ATTR_STATE_UNSUPPORTED;
                if ((is_support_sw_smu(adev) && adev->smu.od_enabled) ||
                    (!is_support_sw_smu(adev) && hwmgr->od_enabled))
                        *states = ATTR_STATE_SUPPORTED;
        } else if (DEVICE_ATTR_IS(mem_busy_percent)) {
                if (adev->flags & AMD_IS_APU || asic_type == CHIP_VEGA10)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pcie_bw)) {
                /* PCIe Perf counters won't work on APU nodes */
                if (adev->flags & AMD_IS_APU)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(unique_id)) {
                if (asic_type != CHIP_VEGA10 &&
                    asic_type != CHIP_VEGA20 &&
                    asic_type != CHIP_ARCTURUS)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(pp_features)) {
                if (adev->flags & AMD_IS_APU || asic_type < CHIP_VEGA10)
                        *states = ATTR_STATE_UNSUPPORTED;
        } else if (DEVICE_ATTR_IS(gpu_metrics)) {
                if (asic_type < CHIP_VEGA12)
                        *states = ATTR_STATE_UNSUPPORTED;
        }

        if (asic_type == CHIP_ARCTURUS) {
                /* Arcturus does not support standalone mclk/socclk/fclk level setting */
                if (DEVICE_ATTR_IS(pp_dpm_mclk) ||
                    DEVICE_ATTR_IS(pp_dpm_socclk) ||
                    DEVICE_ATTR_IS(pp_dpm_fclk)) {
                        dev_attr->attr.mode &= ~S_IWUGO;
                        dev_attr->store = NULL;
                }
        }

#undef DEVICE_ATTR_IS

        return 0;
}


static int amdgpu_device_attr_create(struct amdgpu_device *adev,
                                     struct amdgpu_device_attr *attr,
                                     uint32_t mask, struct list_head *attr_list)
{
        int ret = 0;
        struct device_attribute *dev_attr = &attr->dev_attr;
        const char *name = dev_attr->attr.name;
        enum amdgpu_device_attr_states attr_states = ATTR_STATE_SUPPORTED;
        struct amdgpu_device_attr_entry *attr_entry;

        int (*attr_update)(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
                           uint32_t mask, enum amdgpu_device_attr_states *states) = default_attr_update;

        BUG_ON(!attr);

        attr_update = attr->attr_update ? attr_update : default_attr_update;

        ret = attr_update(adev, attr, mask, &attr_states);
        if (ret) {
                dev_err(adev->dev, "failed to update device file %s, ret = %d\n",
                        name, ret);
                return ret;
        }

        if (attr_states == ATTR_STATE_UNSUPPORTED)
                return 0;

        ret = device_create_file(adev->dev, dev_attr);
        if (ret) {
                dev_err(adev->dev, "failed to create device file %s, ret = %d\n",
                        name, ret);
        }

        attr_entry = kmalloc(sizeof(*attr_entry), GFP_KERNEL);
        if (!attr_entry)
                return -ENOMEM;

        attr_entry->attr = attr;
        INIT_LIST_HEAD(&attr_entry->entry);

        list_add_tail(&attr_entry->entry, attr_list);

        return ret;
}

static void amdgpu_device_attr_remove(struct amdgpu_device *adev, struct amdgpu_device_attr *attr)
{
        struct device_attribute *dev_attr = &attr->dev_attr;

        device_remove_file(adev->dev, dev_attr);
}

static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
                                             struct list_head *attr_list);

static int amdgpu_device_attr_create_groups(struct amdgpu_device *adev,
                                            struct amdgpu_device_attr *attrs,
                                            uint32_t counts,
                                            uint32_t mask,
                                            struct list_head *attr_list)
{
        int ret = 0;
        uint32_t i = 0;

        for (i = 0; i < counts; i++) {
                ret = amdgpu_device_attr_create(adev, &attrs[i], mask, attr_list);
                if (ret)
                        goto failed;
        }

        return 0;

failed:
        amdgpu_device_attr_remove_groups(adev, attr_list);

        return ret;
}

static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
                                             struct list_head *attr_list)
{
        struct amdgpu_device_attr_entry *entry, *entry_tmp;

        if (list_empty(attr_list))
                return ;

        list_for_each_entry_safe(entry, entry_tmp, attr_list, entry) {
                amdgpu_device_attr_remove(adev, entry->attr);
                list_del(&entry->entry);
                kfree(entry);
        }
}

static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
                                      struct device_attribute *attr,
                                      char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int channel = to_sensor_dev_attr(attr)->index;
        int r, temp = 0, size = sizeof(temp);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (channel >= PP_TEMP_MAX)
                return -EINVAL;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        switch (channel) {
        case PP_TEMP_JUNCTION:
                /* get current junction temperature */
                r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_HOTSPOT_TEMP,
                                           (void *)&temp, &size);
                break;
        case PP_TEMP_EDGE:
                /* get current edge temperature */
                r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_EDGE_TEMP,
                                           (void *)&temp, &size);
                break;
        case PP_TEMP_MEM:
                /* get current memory temperature */
                r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_TEMP,
                                           (void *)&temp, &size);
                break;
        default:
                r = -EINVAL;
                break;
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}

static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
                                             struct device_attribute *attr,
                                             char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int hyst = to_sensor_dev_attr(attr)->index;
        int temp;

        if (hyst)
                temp = adev->pm.dpm.thermal.min_temp;
        else
                temp = adev->pm.dpm.thermal.max_temp;

        return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}

static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
                                             struct device_attribute *attr,
                                             char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int hyst = to_sensor_dev_attr(attr)->index;
        int temp;

        if (hyst)
                temp = adev->pm.dpm.thermal.min_hotspot_temp;
        else
                temp = adev->pm.dpm.thermal.max_hotspot_crit_temp;

        return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}

static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
                                             struct device_attribute *attr,
                                             char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int hyst = to_sensor_dev_attr(attr)->index;
        int temp;

        if (hyst)
                temp = adev->pm.dpm.thermal.min_mem_temp;
        else
                temp = adev->pm.dpm.thermal.max_mem_crit_temp;

        return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}

static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
                                             struct device_attribute *attr,
                                             char *buf)
{
        int channel = to_sensor_dev_attr(attr)->index;

        if (channel >= PP_TEMP_MAX)
                return -EINVAL;

        return snprintf(buf, PAGE_SIZE, "%s\n", temp_label[channel].label);
}

static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
                                             struct device_attribute *attr,
                                             char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int channel = to_sensor_dev_attr(attr)->index;
        int temp = 0;

        if (channel >= PP_TEMP_MAX)
                return -EINVAL;

        switch (channel) {
        case PP_TEMP_JUNCTION:
                temp = adev->pm.dpm.thermal.max_hotspot_emergency_temp;
                break;
        case PP_TEMP_EDGE:
                temp = adev->pm.dpm.thermal.max_edge_emergency_temp;
                break;
        case PP_TEMP_MEM:
                temp = adev->pm.dpm.thermal.max_mem_emergency_temp;
                break;
        }

        return snprintf(buf, PAGE_SIZE, "%d\n", temp);
}

static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
                                            struct device_attribute *attr,
                                            char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 pwm_mode = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                pwm_mode = smu_get_fan_control_mode(&adev->smu);
        } else {
                if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
                        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                        return -EINVAL;
                }

                pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return sprintf(buf, "%i\n", pwm_mode);
}

static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
                                            struct device_attribute *attr,
                                            const char *buf,
                                            size_t count)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err, ret;
        int value;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = kstrtoint(buf, 10, &value);
        if (err)
                return err;

        ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                smu_set_fan_control_mode(&adev->smu, value);
        } else {
                if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
                        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                        return -EINVAL;
                }

                amdgpu_dpm_set_fan_control_mode(adev, value);
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return count;
}

static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        return sprintf(buf, "%i\n", 0);
}

static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        return sprintf(buf, "%i\n", 255);
}

static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
                                     struct device_attribute *attr,
                                     const char *buf, size_t count)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 value;
        u32 pwm_mode;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                pwm_mode = smu_get_fan_control_mode(&adev->smu);
        else
                pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);

        if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
                pr_info("manual fan speed control should be enabled first\n");
                pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return -EINVAL;
        }

        err = kstrtou32(buf, 10, &value);
        if (err) {
                pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        value = (value * 100) / 255;

        if (is_support_sw_smu(adev))
                err = smu_set_fan_speed_percent(&adev->smu, value);
        else if (adev->powerplay.pp_funcs->set_fan_speed_percent)
                err = amdgpu_dpm_set_fan_speed_percent(adev, value);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (err)
                return err;

        return count;
}

static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
                                     struct device_attribute *attr,
                                     char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 speed = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                err = smu_get_fan_speed_percent(&adev->smu, &speed);
        else if (adev->powerplay.pp_funcs->get_fan_speed_percent)
                err = amdgpu_dpm_get_fan_speed_percent(adev, &speed);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (err)
                return err;

        speed = (speed * 255) / 100;

        return sprintf(buf, "%i\n", speed);
}

static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
                                           struct device_attribute *attr,
                                           char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 speed = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                err = smu_get_fan_speed_rpm(&adev->smu, &speed);
        else if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
                err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (err)
                return err;

        return sprintf(buf, "%i\n", speed);
}

static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 min_rpm = 0;
        u32 size = sizeof(min_rpm);
        int r;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM,
                                   (void *)&min_rpm, &size);

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", min_rpm);
}

static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 max_rpm = 0;
        u32 size = sizeof(max_rpm);
        int r;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM,
                                   (void *)&max_rpm, &size);

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", max_rpm);
}

static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
                                           struct device_attribute *attr,
                                           char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 rpm = 0;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                err = smu_get_fan_speed_rpm(&adev->smu, &rpm);
        else if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
                err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (err)
                return err;

        return sprintf(buf, "%i\n", rpm);
}

static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
                                     struct device_attribute *attr,
                                     const char *buf, size_t count)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 value;
        u32 pwm_mode;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                pwm_mode = smu_get_fan_control_mode(&adev->smu);
        else
                pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);

        if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
                pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return -ENODATA;
        }

        err = kstrtou32(buf, 10, &value);
        if (err) {
                pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                err = smu_set_fan_speed_rpm(&adev->smu, value);
        else if (adev->powerplay.pp_funcs->set_fan_speed_rpm)
                err = amdgpu_dpm_set_fan_speed_rpm(adev, value);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (err)
                return err;

        return count;
}

static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
                                            struct device_attribute *attr,
                                            char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 pwm_mode = 0;
        int ret;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (ret < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return ret;
        }

        if (is_support_sw_smu(adev)) {
                pwm_mode = smu_get_fan_control_mode(&adev->smu);
        } else {
                if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
                        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                        return -EINVAL;
                }

                pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return sprintf(buf, "%i\n", pwm_mode == AMD_FAN_CTRL_AUTO ? 0 : 1);
}

static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
                                            struct device_attribute *attr,
                                            const char *buf,
                                            size_t count)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        int value;
        u32 pwm_mode;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        err = kstrtoint(buf, 10, &value);
        if (err)
                return err;

        if (value == 0)
                pwm_mode = AMD_FAN_CTRL_AUTO;
        else if (value == 1)
                pwm_mode = AMD_FAN_CTRL_MANUAL;
        else
                return -EINVAL;

        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev)) {
                smu_set_fan_control_mode(&adev->smu, pwm_mode);
        } else {
                if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
                        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
                        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                        return -EINVAL;
                }
                amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return count;
}

static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
                                        struct device_attribute *attr,
                                        char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 vddgfx;
        int r, size = sizeof(vddgfx);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        /* get the voltage */
        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX,
                                   (void *)&vddgfx, &size);

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", vddgfx);
}

static ssize_t amdgpu_hwmon_show_vddgfx_label(struct device *dev,
                                              struct device_attribute *attr,
                                              char *buf)
{
        return snprintf(buf, PAGE_SIZE, "vddgfx\n");
}

static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
                                       struct device_attribute *attr,
                                       char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 vddnb;
        int r, size = sizeof(vddnb);

        if (amdgpu_in_reset(adev))
                return -EPERM;

        /* only APUs have vddnb */
        if  (!(adev->flags & AMD_IS_APU))
                return -EINVAL;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        /* get the voltage */
        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB,
                                   (void *)&vddnb, &size);

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        return snprintf(buf, PAGE_SIZE, "%d\n", vddnb);
}

static ssize_t amdgpu_hwmon_show_vddnb_label(struct device *dev,
                                              struct device_attribute *attr,
                                              char *buf)
{
        return snprintf(buf, PAGE_SIZE, "vddnb\n");
}

static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
                                           struct device_attribute *attr,
                                           char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        u32 query = 0;
        int r, size = sizeof(u32);
        unsigned uw;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        /* get the voltage */
        r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER,
                                   (void *)&query, &size);

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        if (r)
                return r;

        /* convert to microwatts */
        uw = (query >> 8) * 1000000 + (query & 0xff) * 1000;

        return snprintf(buf, PAGE_SIZE, "%u\n", uw);
}

static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        return sprintf(buf, "%i\n", 0);
}

static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        uint32_t limit = 0;
        ssize_t size;
        int r;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        if (is_support_sw_smu(adev)) {
                smu_get_power_limit(&adev->smu, &limit, true);
                size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
        } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
                adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, true);
                size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
        } else {
                size = snprintf(buf, PAGE_SIZE, "\n");
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return size;
}

static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        uint32_t limit = 0;
        ssize_t size;
        int r;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (r < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return r;
        }

        if (is_support_sw_smu(adev)) {
                smu_get_power_limit(&adev->smu, &limit, false);
                size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
        } else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
                adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, false);
                size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
        } else {
                size = snprintf(buf, PAGE_SIZE, "\n");
        }

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);

        return size;
}


static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
                struct device_attribute *attr,
                const char *buf,
                size_t count)
{
        struct amdgpu_device *adev = dev_get_drvdata(dev);
        int err;
        u32 value;

        if (amdgpu_in_reset(adev))
                return -EPERM;

        if (amdgpu_sriov_vf(adev))
                return -EINVAL;

        err = kstrtou32(buf, 10, &value);
        if (err)
                return err;

        value = value / 1000000; /* convert to Watt */


        err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
        if (err < 0) {
                pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
                return err;
        }

        if (is_support_sw_smu(adev))
                err = smu_set_power_limit(&adev->smu, value);
        else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit)
                err = adev->powerplay.pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
        else
                err = -EINVAL;

        pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
        pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);