| /* |
| * 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/drmP.h> |
| #include "amdgpu.h" |
| #include "amdgpu_drv.h" |
| #include "amdgpu_pm.h" |
| #include "amdgpu_dpm.h" |
| #include "amdgpu_display.h" |
| #include "atom.h" |
| #include <linux/power_supply.h> |
| #include <linux/hwmon.h> |
| #include <linux/hwmon-sysfs.h> |
| #include <linux/nospec.h> |
| #include "hwmgr.h" |
| #define WIDTH_4K 3840 |
| |
| static int amdgpu_debugfs_pm_init(struct amdgpu_device *adev); |
| |
| 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"}, |
| {0, NULL}, |
| }; |
| |
| void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev) |
| { |
| if (adev->pm.dpm_enabled) { |
| mutex_lock(&adev->pm.mutex); |
| if (power_supply_is_system_supplied() > 0) |
| adev->pm.ac_power = true; |
| else |
| adev->pm.ac_power = false; |
| if (adev->powerplay.pp_funcs->enable_bapm) |
| amdgpu_dpm_enable_bapm(adev, adev->pm.ac_power); |
| mutex_unlock(&adev->pm.mutex); |
| } |
| } |
| |
| /** |
| * 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_dpm_state(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct drm_device *ddev = dev_get_drvdata(dev); |
| struct amdgpu_device *adev = ddev->dev_private; |
| enum amd_pm_state_type pm; |
| |
| if (adev->powerplay.pp_funcs->get_current_power_state) |
| pm = amdgpu_dpm_get_current_power_state(adev); |
| else |
| pm = adev->pm.dpm.user_state; |
| |
| 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_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 = ddev->dev_private; |
| enum amd_pm_state_type state; |
| |
| 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 { |
| count = -EINVAL; |
| goto fail; |
| } |
| |
| 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); |
| |
| /* Can't set dpm state when the card is off */ |
| if (!(adev->flags & AMD_IS_PX) || |
| (ddev->switch_power_state == DRM_SWITCH_POWER_ON)) |
| amdgpu_pm_compute_clocks(adev); |
| } |
| fail: |
| 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_dpm_forced_performance_level(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct drm_device *ddev = dev_get_drvdata(dev); |
| struct amdgpu_device *adev = ddev->dev_private; |
| enum amd_dpm_forced_level level = 0xff; |
| |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return snprintf(buf, PAGE_SIZE, "off\n"); |
| |
| if (adev->powerplay.pp_funcs->get_performance_level) |
| level = amdgpu_dpm_get_performance_level(adev); |
| else |
| level = adev->pm.dpm.forced_level; |
| |
| 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_dpm_forced_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 = ddev->dev_private; |
| enum amd_dpm_forced_level level; |
| enum amd_dpm_forced_level current_level = 0xff; |
| int ret = 0; |
| |
| /* Can't force performance level when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (adev->powerplay.pp_funcs->get_performance_level) |
| current_level = amdgpu_dpm_get_performance_level(adev); |
| |
| 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 { |
| count = -EINVAL; |
| goto fail; |
| } |
| |
| if (current_level == level) |
| return count; |
| |
| if (adev->powerplay.pp_funcs->force_performance_level) { |
| mutex_lock(&adev->pm.mutex); |
| if (adev->pm.dpm.thermal_active) { |
| count = -EINVAL; |
| mutex_unlock(&adev->pm.mutex); |
| goto fail; |
| } |
| ret = amdgpu_dpm_force_performance_level(adev, level); |
| if (ret) |
| count = -EINVAL; |
| else |
| adev->pm.dpm.forced_level = level; |
| mutex_unlock(&adev->pm.mutex); |
| } |
| |
| fail: |
| 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 = ddev->dev_private; |
| struct pp_states_info data; |
| int i, buf_len; |
| |
| if (adev->powerplay.pp_funcs->get_pp_num_states) |
| amdgpu_dpm_get_pp_num_states(adev, &data); |
| |
| 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 = ddev->dev_private; |
| struct pp_states_info data; |
| enum amd_pm_state_type pm = 0; |
| int i = 0; |
| |
| 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); |
| |
| 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 = ddev->dev_private; |
| |
| 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 = ddev->dev_private; |
| enum amd_pm_state_type state = 0; |
| unsigned long idx; |
| int ret; |
| |
| if (strlen(buf) == 1) |
| 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)) { |
| count = -EINVAL; |
| goto fail; |
| } |
| idx = array_index_nospec(idx, ARRAY_SIZE(data.states)); |
| |
| amdgpu_dpm_get_pp_num_states(adev, &data); |
| state = data.states[idx]; |
| /* 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; |
| } |
| } |
| fail: |
| 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 = ddev->dev_private; |
| char *table = NULL; |
| int size; |
| |
| if (adev->powerplay.pp_funcs->get_pp_table) |
| size = amdgpu_dpm_get_pp_table(adev, &table); |
| else |
| 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 = ddev->dev_private; |
| |
| if (adev->powerplay.pp_funcs->set_pp_table) |
| amdgpu_dpm_set_pp_table(adev, buf, count); |
| |
| 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. |
| * |
| * < 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 > |
| * |
| * 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 = ddev->dev_private; |
| 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 (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, ¶meter[parameter_size]); |
| if (ret) |
| return -EINVAL; |
| parameter_size++; |
| |
| while (isspace(*tmp_str)) |
| tmp_str++; |
| } |
| |
| if (adev->powerplay.pp_funcs->odn_edit_dpm_table) |
| ret = amdgpu_dpm_odn_edit_dpm_table(adev, type, |
| parameter, parameter_size); |
| |
| if (ret) |
| 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); |
| return count; |
| } else { |
| return -EINVAL; |
| } |
| } |
| |
| 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 = ddev->dev_private; |
| uint32_t size = 0; |
| |
| 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); |
| return size; |
| } else { |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| |
| } |
| |
| /** |
| * DOC: pp_dpm_sclk pp_dpm_mclk 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, |
| * and pp_dpm_pcie are used for this. |
| * |
| * 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., echo 4 5 6 to > pp_dpm_sclk will enable sclk levels 4, 5, and 6. |
| */ |
| |
| 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 = ddev->dev_private; |
| |
| if (adev->powerplay.pp_funcs->print_clock_levels) |
| return amdgpu_dpm_print_clock_levels(adev, PP_SCLK, buf); |
| else |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| |
| /* |
| * 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 = ddev->dev_private; |
| int ret; |
| uint32_t mask = 0; |
| |
| ret = amdgpu_read_mask(buf, count, &mask); |
| if (ret) |
| return ret; |
| |
| if (adev->powerplay.pp_funcs->force_clock_level) |
| ret = amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask); |
| |
| 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 = ddev->dev_private; |
| |
| if (adev->powerplay.pp_funcs->print_clock_levels) |
| return amdgpu_dpm_print_clock_levels(adev, PP_MCLK, buf); |
| else |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| |
| 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 = ddev->dev_private; |
| int ret; |
| uint32_t mask = 0; |
| |
| ret = amdgpu_read_mask(buf, count, &mask); |
| if (ret) |
| return ret; |
| |
| if (adev->powerplay.pp_funcs->force_clock_level) |
| ret = amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask); |
| |
| 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 = ddev->dev_private; |
| |
| if (adev->powerplay.pp_funcs->print_clock_levels) |
| return amdgpu_dpm_print_clock_levels(adev, PP_PCIE, buf); |
| else |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| |
| 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 = ddev->dev_private; |
| int ret; |
| uint32_t mask = 0; |
| |
| ret = amdgpu_read_mask(buf, count, &mask); |
| if (ret) |
| return ret; |
| |
| if (adev->powerplay.pp_funcs->force_clock_level) |
| ret = amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask); |
| |
| 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 = ddev->dev_private; |
| uint32_t value = 0; |
| |
| if (adev->powerplay.pp_funcs->get_sclk_od) |
| value = amdgpu_dpm_get_sclk_od(adev); |
| |
| 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 = ddev->dev_private; |
| int ret; |
| long int value; |
| |
| ret = kstrtol(buf, 0, &value); |
| |
| if (ret) { |
| count = -EINVAL; |
| goto fail; |
| } |
| 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); |
| } |
| |
| fail: |
| 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 = ddev->dev_private; |
| uint32_t value = 0; |
| |
| if (adev->powerplay.pp_funcs->get_mclk_od) |
| value = amdgpu_dpm_get_mclk_od(adev); |
| |
| 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 = ddev->dev_private; |
| int ret; |
| long int value; |
| |
| ret = kstrtol(buf, 0, &value); |
| |
| if (ret) { |
| count = -EINVAL; |
| goto fail; |
| } |
| 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); |
| } |
| |
| fail: |
| 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 = ddev->dev_private; |
| |
| if (adev->powerplay.pp_funcs->get_power_profile_mode) |
| return amdgpu_dpm_get_power_profile_mode(adev, buf); |
| |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| |
| |
| static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, |
| size_t count) |
| { |
| int ret = 0xff; |
| struct drm_device *ddev = dev_get_drvdata(dev); |
| struct amdgpu_device *adev = ddev->dev_private; |
| 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'}; |
| |
| tmp[0] = *(buf); |
| tmp[1] = '\0'; |
| ret = kstrtol(tmp, 0, &profile_mode); |
| if (ret) |
| goto fail; |
| |
| 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, ¶meter[parameter_size]); |
| if (ret) { |
| count = -EINVAL; |
| goto fail; |
| } |
| parameter_size++; |
| while (isspace(*tmp_str)) |
| tmp_str++; |
| } |
| } |
| parameter[parameter_size] = profile_mode; |
| if (adev->powerplay.pp_funcs->set_power_profile_mode) |
| ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size); |
| |
| if (!ret) |
| return count; |
| fail: |
| return -EINVAL; |
| } |
| |
| /** |
| * DOC: 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_busy_percent(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct drm_device *ddev = dev_get_drvdata(dev); |
| struct amdgpu_device *adev = ddev->dev_private; |
| int r, value, size = sizeof(value); |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* read the IP busy sensor */ |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD, |
| (void *)&value, &size); |
| if (r) |
| return r; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", value); |
| } |
| |
| static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, amdgpu_get_dpm_state, amdgpu_set_dpm_state); |
| static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR, |
| amdgpu_get_dpm_forced_performance_level, |
| amdgpu_set_dpm_forced_performance_level); |
| static DEVICE_ATTR(pp_num_states, S_IRUGO, amdgpu_get_pp_num_states, NULL); |
| static DEVICE_ATTR(pp_cur_state, S_IRUGO, amdgpu_get_pp_cur_state, NULL); |
| static DEVICE_ATTR(pp_force_state, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_force_state, |
| amdgpu_set_pp_force_state); |
| static DEVICE_ATTR(pp_table, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_table, |
| amdgpu_set_pp_table); |
| static DEVICE_ATTR(pp_dpm_sclk, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_dpm_sclk, |
| amdgpu_set_pp_dpm_sclk); |
| static DEVICE_ATTR(pp_dpm_mclk, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_dpm_mclk, |
| amdgpu_set_pp_dpm_mclk); |
| static DEVICE_ATTR(pp_dpm_pcie, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_dpm_pcie, |
| amdgpu_set_pp_dpm_pcie); |
| static DEVICE_ATTR(pp_sclk_od, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_sclk_od, |
| amdgpu_set_pp_sclk_od); |
| static DEVICE_ATTR(pp_mclk_od, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_mclk_od, |
| amdgpu_set_pp_mclk_od); |
| static DEVICE_ATTR(pp_power_profile_mode, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_power_profile_mode, |
| amdgpu_set_pp_power_profile_mode); |
| static DEVICE_ATTR(pp_od_clk_voltage, S_IRUGO | S_IWUSR, |
| amdgpu_get_pp_od_clk_voltage, |
| amdgpu_set_pp_od_clk_voltage); |
| static DEVICE_ATTR(gpu_busy_percent, S_IRUGO, |
| amdgpu_get_busy_percent, NULL); |
| |
| static ssize_t amdgpu_hwmon_show_temp(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct amdgpu_device *adev = dev_get_drvdata(dev); |
| struct drm_device *ddev = adev->ddev; |
| int r, temp, size = sizeof(temp); |
| |
| /* Can't get temperature when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* get the temperature */ |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, |
| (void *)&temp, &size); |
| 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_get_pwm1_enable(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct amdgpu_device *adev = dev_get_drvdata(dev); |
| u32 pwm_mode = 0; |
| |
| if (!adev->powerplay.pp_funcs->get_fan_control_mode) |
| return -EINVAL; |
| |
| pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); |
| |
| 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; |
| int value; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (!adev->powerplay.pp_funcs->set_fan_control_mode) |
| return -EINVAL; |
| |
| err = kstrtoint(buf, 10, &value); |
| if (err) |
| return err; |
| |
| amdgpu_dpm_set_fan_control_mode(adev, value); |
| |
| 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; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| 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"); |
| return -EINVAL; |
| } |
| |
| err = kstrtou32(buf, 10, &value); |
| if (err) |
| return err; |
| |
| value = (value * 100) / 255; |
| |
| if (adev->powerplay.pp_funcs->set_fan_speed_percent) { |
| err = amdgpu_dpm_set_fan_speed_percent(adev, value); |
| 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; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (adev->powerplay.pp_funcs->get_fan_speed_percent) { |
| err = amdgpu_dpm_get_fan_speed_percent(adev, &speed); |
| 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; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (adev->powerplay.pp_funcs->get_fan_speed_rpm) { |
| err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed); |
| 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 (!adev->powerplay.pp_funcs->read_sensor) |
| return -EINVAL; |
| |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM, |
| (void *)&min_rpm, &size); |
| 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 (!adev->powerplay.pp_funcs->read_sensor) |
| return -EINVAL; |
| |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM, |
| (void *)&max_rpm, &size); |
| 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; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (adev->powerplay.pp_funcs->get_fan_speed_rpm) { |
| err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm); |
| 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; |
| |
| pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); |
| if (pwm_mode != AMD_FAN_CTRL_MANUAL) |
| return -ENODATA; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| err = kstrtou32(buf, 10, &value); |
| if (err) |
| return err; |
| |
| if (adev->powerplay.pp_funcs->set_fan_speed_rpm) { |
| err = amdgpu_dpm_set_fan_speed_rpm(adev, value); |
| 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; |
| |
| if (!adev->powerplay.pp_funcs->get_fan_control_mode) |
| return -EINVAL; |
| |
| pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); |
| |
| 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; |
| |
| /* Can't adjust fan when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| if (!adev->powerplay.pp_funcs->set_fan_control_mode) |
| return -EINVAL; |
| |
| 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; |
| |
| amdgpu_dpm_set_fan_control_mode(adev, pwm_mode); |
| |
| 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); |
| struct drm_device *ddev = adev->ddev; |
| u32 vddgfx; |
| int r, size = sizeof(vddgfx); |
| |
| /* Can't get voltage when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* get the voltage */ |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX, |
| (void *)&vddgfx, &size); |
| 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); |
| struct drm_device *ddev = adev->ddev; |
| u32 vddnb; |
| int r, size = sizeof(vddnb); |
| |
| /* only APUs have vddnb */ |
| if (!(adev->flags & AMD_IS_APU)) |
| return -EINVAL; |
| |
| /* Can't get voltage when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* get the voltage */ |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB, |
| (void *)&vddnb, &size); |
| 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); |
| struct drm_device *ddev = adev->ddev; |
| u32 query = 0; |
| int r, size = sizeof(u32); |
| unsigned uw; |
| |
| /* Can't get power when the card is off */ |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) |
| return -EINVAL; |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* get the voltage */ |
| r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER, |
| (void *)&query, &size); |
| 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; |
| |
| 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); |
| return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000); |
| } else { |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| } |
| |
| 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; |
| |
| 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); |
| return snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000); |
| } else { |
| return snprintf(buf, PAGE_SIZE, "\n"); |
| } |
| } |
| |
| |
| 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; |
| |
| err = kstrtou32(buf, 10, &value); |
| if (err) |
| return err; |
| |
| value = value / 1000000; /* convert to Watt */ |
| 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); |
| if (err) |
| return err; |
| } else { |
| return -EINVAL; |
| } |
| |
| return count; |
| } |
| |
| |
| /** |
| * DOC: hwmon |
| * |
| * The amdgpu driver exposes the following sensor interfaces: |
| * |
| * - GPU temperature (via the on-die sensor) |
| * |
| * - GPU voltage |
| * |
| * - Northbridge voltage (APUs only) |
| * |
| * - GPU power |
| * |
| * - GPU fan |
| * |
| * hwmon interfaces for GPU temperature: |
| * |
| * - temp1_input: the on die GPU temperature in millidegrees Celsius |
| * |
| * - temp1_crit: temperature critical max value in millidegrees Celsius |
| * |
| * - temp1_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius |
| * |
| * hwmon interfaces for GPU voltage: |
| * |
| * - in0_input: the voltage on the GPU in millivolts |
| * |
| * - in1_input: the voltage on the Northbridge in millivolts |
| * |
| * hwmon interfaces for GPU power: |
| * |
| * - power1_average: average power used by the GPU in microWatts |
| * |
| * - power1_cap_min: minimum cap supported in microWatts |
| * |
| * - power1_cap_max: maximum cap supported in microWatts |
| * |
| * - power1_cap: selected power cap in microWatts |
| * |
| * hwmon interfaces for GPU fan: |
| * |
| * - pwm1: pulse width modulation fan level (0-255) |
| * |
| * - pwm1_enable: pulse width modulation fan control method (0: no fan speed control, 1: manual fan speed control using pwm interface, 2: automatic fan speed control) |
| * |
| * - pwm1_min: pulse width modulation fan control minimum level (0) |
| * |
| * - pwm1_max: pulse width modulation fan control maximum level (255) |
| * |
| * - fan1_min: an minimum value Unit: revolution/min (RPM) |
| * |
| * - fan1_max: an maxmum value Unit: revolution/max (RPM) |
| * |
| * - fan1_input: fan speed in RPM |
| * |
| * - fan[1-*]_target: Desired fan speed Unit: revolution/min (RPM) |
| * |
| * - fan[1-*]_enable: Enable or disable the sensors.1: Enable 0: Disable |
| * |
| * You can use hwmon tools like sensors to view this information on your system. |
| * |
| */ |
| |
| static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, 0); |
| static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0); |
| static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1); |
| static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1, amdgpu_hwmon_set_pwm1, 0); |
| static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1_enable, amdgpu_hwmon_set_pwm1_enable, 0); |
| static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, amdgpu_hwmon_get_pwm1_min, NULL, 0); |
| static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, amdgpu_hwmon_get_pwm1_max, NULL, 0); |
| static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, amdgpu_hwmon_get_fan1_input, NULL, 0); |
| static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, amdgpu_hwmon_get_fan1_min, NULL, 0); |
| static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, amdgpu_hwmon_get_fan1_max, NULL, 0); |
| static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_target, amdgpu_hwmon_set_fan1_target, 0); |
| static SENSOR_DEVICE_ATTR(fan1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_enable, amdgpu_hwmon_set_fan1_enable, 0); |
| static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, amdgpu_hwmon_show_vddgfx, NULL, 0); |
| static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, amdgpu_hwmon_show_vddgfx_label, NULL, 0); |
| static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, amdgpu_hwmon_show_vddnb, NULL, 0); |
| static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, amdgpu_hwmon_show_vddnb_label, NULL, 0); |
| static SENSOR_DEVICE_ATTR(power1_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 0); |
| static SENSOR_DEVICE_ATTR(power1_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 0); |
| static SENSOR_DEVICE_ATTR(power1_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 0); |
| static SENSOR_DEVICE_ATTR(power1_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 0); |
| |
| static struct attribute *hwmon_attributes[] = { |
| &sensor_dev_attr_temp1_input.dev_attr.attr, |
| &sensor_dev_attr_temp1_crit.dev_attr.attr, |
| &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, |
| &sensor_dev_attr_pwm1.dev_attr.attr, |
| &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
| &sensor_dev_attr_pwm1_min.dev_attr.attr, |
| &sensor_dev_attr_pwm1_max.dev_attr.attr, |
| &sensor_dev_attr_fan1_input.dev_attr.attr, |
| &sensor_dev_attr_fan1_min.dev_attr.attr, |
| &sensor_dev_attr_fan1_max.dev_attr.attr, |
| &sensor_dev_attr_fan1_target.dev_attr.attr, |
| &sensor_dev_attr_fan1_enable.dev_attr.attr, |
| &sensor_dev_attr_in0_input.dev_attr.attr, |
| &sensor_dev_attr_in0_label.dev_attr.attr, |
| &sensor_dev_attr_in1_input.dev_attr.attr, |
| &sensor_dev_attr_in1_label.dev_attr.attr, |
| &sensor_dev_attr_power1_average.dev_attr.attr, |
| &sensor_dev_attr_power1_cap_max.dev_attr.attr, |
| &sensor_dev_attr_power1_cap_min.dev_attr.attr, |
| &sensor_dev_attr_power1_cap.dev_attr.attr, |
| NULL |
| }; |
| |
| static umode_t hwmon_attributes_visible(struct kobject *kobj, |
| struct attribute *attr, int index) |
| { |
| struct device *dev = kobj_to_dev(kobj); |
| struct amdgpu_device *adev = dev_get_drvdata(dev); |
| umode_t effective_mode = attr->mode; |
| |
| /* Skip fan attributes if fan is not present */ |
| if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_input.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_target.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_enable.dev_attr.attr)) |
| return 0; |
| |
| /* Skip fan attributes on APU */ |
| if ((adev->flags & AMD_IS_APU) && |
| (attr == &sensor_dev_attr_pwm1.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_input.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_target.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_enable.dev_attr.attr)) |
| return 0; |
| |
| /* Skip limit attributes if DPM is not enabled */ |
| if (!adev->pm.dpm_enabled && |
| (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr || |
| attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_input.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_min.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_target.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_enable.dev_attr.attr)) |
| return 0; |
| |
| /* mask fan attributes if we have no bindings for this asic to expose */ |
| if ((!adev->powerplay.pp_funcs->get_fan_speed_percent && |
| attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */ |
| (!adev->powerplay.pp_funcs->get_fan_control_mode && |
| attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */ |
| effective_mode &= ~S_IRUGO; |
| |
| if ((!adev->powerplay.pp_funcs->set_fan_speed_percent && |
| attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */ |
| (!adev->powerplay.pp_funcs->set_fan_control_mode && |
| attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */ |
| effective_mode &= ~S_IWUSR; |
| |
| if ((adev->flags & AMD_IS_APU) && |
| (attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr || |
| attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr|| |
| attr == &sensor_dev_attr_power1_cap.dev_attr.attr)) |
| return 0; |
| |
| /* hide max/min values if we can't both query and manage the fan */ |
| if ((!adev->powerplay.pp_funcs->set_fan_speed_percent && |
| !adev->powerplay.pp_funcs->get_fan_speed_percent) && |
| (!adev->powerplay.pp_funcs->set_fan_speed_rpm && |
| !adev->powerplay.pp_funcs->get_fan_speed_rpm) && |
| (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_pwm1_min.dev_attr.attr)) |
| return 0; |
| |
| if ((!adev->powerplay.pp_funcs->set_fan_speed_rpm && |
| !adev->powerplay.pp_funcs->get_fan_speed_rpm) && |
| (attr == &sensor_dev_attr_fan1_max.dev_attr.attr || |
| attr == &sensor_dev_attr_fan1_min.dev_attr.attr)) |
| return 0; |
| |
| /* only APUs have vddnb */ |
| if (!(adev->flags & AMD_IS_APU) && |
| (attr == &sensor_dev_attr_in1_input.dev_attr.attr || |
| attr == &sensor_dev_attr_in1_label.dev_attr.attr)) |
| return 0; |
| |
| return effective_mode; |
| } |
| |
| static const struct attribute_group hwmon_attrgroup = { |
| .attrs = hwmon_attributes, |
| .is_visible = hwmon_attributes_visible, |
| }; |
| |
| static const struct attribute_group *hwmon_groups[] = { |
| &hwmon_attrgroup, |
| NULL |
| }; |
| |
| void amdgpu_dpm_thermal_work_handler(struct work_struct *work) |
| { |
| struct amdgpu_device *adev = |
| container_of(work, struct amdgpu_device, |
| pm.dpm.thermal.work); |
| /* switch to the thermal state */ |
| enum amd_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL; |
| int temp, size = sizeof(temp); |
| |
| if (!adev->pm.dpm_enabled) |
| return; |
| |
| if (adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor && |
| !amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, |
| (void *)&temp, &size)) { |
| if (temp < adev->pm.dpm.thermal.min_temp) |
| /* switch back the user state */ |
| dpm_state = adev->pm.dpm.user_state; |
| } else { |
| if (adev->pm.dpm.thermal.high_to_low) |
| /* switch back the user state */ |
| dpm_state = adev->pm.dpm.user_state; |
| } |
| mutex_lock(&adev->pm.mutex); |
| if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL) |
| adev->pm.dpm.thermal_active = true; |
| else |
| adev->pm.dpm.thermal_active = false; |
| adev->pm.dpm.state = dpm_state; |
| mutex_unlock(&adev->pm.mutex); |
| |
| amdgpu_pm_compute_clocks(adev); |
| } |
| |
| static struct amdgpu_ps *amdgpu_dpm_pick_power_state(struct amdgpu_device *adev, |
| enum amd_pm_state_type dpm_state) |
| { |
| int i; |
| struct amdgpu_ps *ps; |
| u32 ui_class; |
| bool single_display = (adev->pm.dpm.new_active_crtc_count < 2) ? |
| true : false; |
| |
| /* check if the vblank period is too short to adjust the mclk */ |
| if (single_display && adev->powerplay.pp_funcs->vblank_too_short) { |
| if (amdgpu_dpm_vblank_too_short(adev)) |
| single_display = false; |
| } |
| |
| /* certain older asics have a separare 3D performance state, |
| * so try that first if the user selected performance |
| */ |
| if (dpm_state == POWER_STATE_TYPE_PERFORMANCE) |
| dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF; |
| /* balanced states don't exist at the moment */ |
| if (dpm_state == POWER_STATE_TYPE_BALANCED) |
| dpm_state = POWER_STATE_TYPE_PERFORMANCE; |
| |
| restart_search: |
| /* Pick the best power state based on current conditions */ |
| for (i = 0; i < adev->pm.dpm.num_ps; i++) { |
| ps = &adev->pm.dpm.ps[i]; |
| ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK; |
| switch (dpm_state) { |
| /* user states */ |
| case POWER_STATE_TYPE_BATTERY: |
| if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) { |
| if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { |
| if (single_display) |
| return ps; |
| } else |
| return ps; |
| } |
| break; |
| case POWER_STATE_TYPE_BALANCED: |
| if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) { |
| if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { |
| if (single_display) |
| return ps; |
| } else |
| return ps; |
| } |
| break; |
| case POWER_STATE_TYPE_PERFORMANCE: |
| if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) { |
| if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { |
| if (single_display) |
| return ps; |
| } else |
| return ps; |
| } |
| break; |
| /* internal states */ |
| case POWER_STATE_TYPE_INTERNAL_UVD: |
| if (adev->pm.dpm.uvd_ps) |
| return adev->pm.dpm.uvd_ps; |
| else |
| break; |
| case POWER_STATE_TYPE_INTERNAL_UVD_SD: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_UVD_HD: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_UVD_HD2: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_UVD_MVC: |
| if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_BOOT: |
| return adev->pm.dpm.boot_ps; |
| case POWER_STATE_TYPE_INTERNAL_THERMAL: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_ACPI: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_ULV: |
| if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) |
| return ps; |
| break; |
| case POWER_STATE_TYPE_INTERNAL_3DPERF: |
| if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) |
| return ps; |
| break; |
| default: |
| break; |
| } |
| } |
| /* use a fallback state if we didn't match */ |
| switch (dpm_state) { |
| case POWER_STATE_TYPE_INTERNAL_UVD_SD: |
| dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; |
| goto restart_search; |
| case POWER_STATE_TYPE_INTERNAL_UVD_HD: |
| case POWER_STATE_TYPE_INTERNAL_UVD_HD2: |
| case POWER_STATE_TYPE_INTERNAL_UVD_MVC: |
| if (adev->pm.dpm.uvd_ps) { |
| return adev->pm.dpm.uvd_ps; |
| } else { |
| dpm_state = POWER_STATE_TYPE_PERFORMANCE; |
| goto restart_search; |
| } |
| case POWER_STATE_TYPE_INTERNAL_THERMAL: |
| dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI; |
| goto restart_search; |
| case POWER_STATE_TYPE_INTERNAL_ACPI: |
| dpm_state = POWER_STATE_TYPE_BATTERY; |
| goto restart_search; |
| case POWER_STATE_TYPE_BATTERY: |
| case POWER_STATE_TYPE_BALANCED: |
| case POWER_STATE_TYPE_INTERNAL_3DPERF: |
| dpm_state = POWER_STATE_TYPE_PERFORMANCE; |
| goto restart_search; |
| default: |
| break; |
| } |
| |
| return NULL; |
| } |
| |
| static void amdgpu_dpm_change_power_state_locked(struct amdgpu_device *adev) |
| { |
| struct amdgpu_ps *ps; |
| enum amd_pm_state_type dpm_state; |
| int ret; |
| bool equal = false; |
| |
| /* if dpm init failed */ |
| if (!adev->pm.dpm_enabled) |
| return; |
| |
| if (adev->pm.dpm.user_state != adev->pm.dpm.state) { |
| /* add other state override checks here */ |
| if ((!adev->pm.dpm.thermal_active) && |
| (!adev->pm.dpm.uvd_active)) |
| adev->pm.dpm.state = adev->pm.dpm.user_state; |
| } |
| dpm_state = adev->pm.dpm.state; |
| |
| ps = amdgpu_dpm_pick_power_state(adev, dpm_state); |
| if (ps) |
| adev->pm.dpm.requested_ps = ps; |
| else |
| return; |
| |
| if (amdgpu_dpm == 1 && adev->powerplay.pp_funcs->print_power_state) { |
| printk("switching from power state:\n"); |
| amdgpu_dpm_print_power_state(adev, adev->pm.dpm.current_ps); |
| printk("switching to power state:\n"); |
| amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps); |
| } |
| |
| /* update whether vce is active */ |
| ps->vce_active = adev->pm.dpm.vce_active; |
| if (adev->powerplay.pp_funcs->display_configuration_changed) |
| amdgpu_dpm_display_configuration_changed(adev); |
| |
| ret = amdgpu_dpm_pre_set_power_state(adev); |
| if (ret) |
| return; |
| |
| if (adev->powerplay.pp_funcs->check_state_equal) { |
| if (0 != amdgpu_dpm_check_state_equal(adev, adev->pm.dpm.current_ps, adev->pm.dpm.requested_ps, &equal)) |
| equal = false; |
| } |
| |
| if (equal) |
| return; |
| |
| amdgpu_dpm_set_power_state(adev); |
| amdgpu_dpm_post_set_power_state(adev); |
| |
| adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs; |
| adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count; |
| |
| if (adev->powerplay.pp_funcs->force_performance_level) { |
| if (adev->pm.dpm.thermal_active) { |
| enum amd_dpm_forced_level level = adev->pm.dpm.forced_level; |
| /* force low perf level for thermal */ |
| amdgpu_dpm_force_performance_level(adev, AMD_DPM_FORCED_LEVEL_LOW); |
| /* save the user's level */ |
| adev->pm.dpm.forced_level = level; |
| } else { |
| /* otherwise, user selected level */ |
| amdgpu_dpm_force_performance_level(adev, adev->pm.dpm.forced_level); |
| } |
| } |
| } |
| |
| void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable) |
| { |
| if (adev->powerplay.pp_funcs->set_powergating_by_smu) { |
| /* enable/disable UVD */ |
| mutex_lock(&adev->pm.mutex); |
| amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_UVD, !enable); |
| mutex_unlock(&adev->pm.mutex); |
| } |
| /* enable/disable Low Memory PState for UVD (4k videos) */ |
| if (adev->asic_type == CHIP_STONEY && |
| adev->uvd.decode_image_width >= WIDTH_4K) { |
| struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle; |
| |
| if (hwmgr && hwmgr->hwmgr_func && |
| hwmgr->hwmgr_func->update_nbdpm_pstate) |
| hwmgr->hwmgr_func->update_nbdpm_pstate(hwmgr, |
| !enable, |
| true); |
| } |
| } |
| |
| void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable) |
| { |
| if (adev->powerplay.pp_funcs->set_powergating_by_smu) { |
| /* enable/disable VCE */ |
| mutex_lock(&adev->pm.mutex); |
| amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_VCE, !enable); |
| mutex_unlock(&adev->pm.mutex); |
| } |
| } |
| |
| void amdgpu_pm_print_power_states(struct amdgpu_device *adev) |
| { |
| int i; |
| |
| if (adev->powerplay.pp_funcs->print_power_state == NULL) |
| return; |
| |
| for (i = 0; i < adev->pm.dpm.num_ps; i++) |
| amdgpu_dpm_print_power_state(adev, &adev->pm.dpm.ps[i]); |
| |
| } |
| |
| int amdgpu_pm_sysfs_init(struct amdgpu_device *adev) |
| { |
| int ret; |
| |
| if (adev->pm.sysfs_initialized) |
| return 0; |
| |
| if (adev->pm.dpm_enabled == 0) |
| return 0; |
| |
| adev->pm.int_hwmon_dev = hwmon_device_register_with_groups(adev->dev, |
| DRIVER_NAME, adev, |
| hwmon_groups); |
| if (IS_ERR(adev->pm.int_hwmon_dev)) { |
| ret = PTR_ERR(adev->pm.int_hwmon_dev); |
| dev_err(adev->dev, |
| "Unable to register hwmon device: %d\n", ret); |
| return ret; |
| } |
| |
| ret = device_create_file(adev->dev, &dev_attr_power_dpm_state); |
| if (ret) { |
| DRM_ERROR("failed to create device file for dpm state\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_power_dpm_force_performance_level); |
| if (ret) { |
| DRM_ERROR("failed to create device file for dpm state\n"); |
| return ret; |
| } |
| |
| |
| ret = device_create_file(adev->dev, &dev_attr_pp_num_states); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_num_states\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_cur_state); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_cur_state\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_force_state); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_force_state\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_table); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_table\n"); |
| return ret; |
| } |
| |
| ret = device_create_file(adev->dev, &dev_attr_pp_dpm_sclk); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_dpm_sclk\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_dpm_mclk); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_dpm_mclk\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_dpm_pcie); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_dpm_pcie\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_sclk_od); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_sclk_od\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, &dev_attr_pp_mclk_od); |
| if (ret) { |
| DRM_ERROR("failed to create device file pp_mclk_od\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, |
| &dev_attr_pp_power_profile_mode); |
| if (ret) { |
| DRM_ERROR("failed to create device file " |
| "pp_power_profile_mode\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, |
| &dev_attr_pp_od_clk_voltage); |
| if (ret) { |
| DRM_ERROR("failed to create device file " |
| "pp_od_clk_voltage\n"); |
| return ret; |
| } |
| ret = device_create_file(adev->dev, |
| &dev_attr_gpu_busy_percent); |
| if (ret) { |
| DRM_ERROR("failed to create device file " |
| "gpu_busy_level\n"); |
| return ret; |
| } |
| ret = amdgpu_debugfs_pm_init(adev); |
| if (ret) { |
| DRM_ERROR("Failed to register debugfs file for dpm!\n"); |
| return ret; |
| } |
| |
| adev->pm.sysfs_initialized = true; |
| |
| return 0; |
| } |
| |
| void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev) |
| { |
| if (adev->pm.dpm_enabled == 0) |
| return; |
| |
| if (adev->pm.int_hwmon_dev) |
| hwmon_device_unregister(adev->pm.int_hwmon_dev); |
| device_remove_file(adev->dev, &dev_attr_power_dpm_state); |
| device_remove_file(adev->dev, &dev_attr_power_dpm_force_performance_level); |
| |
| device_remove_file(adev->dev, &dev_attr_pp_num_states); |
| device_remove_file(adev->dev, &dev_attr_pp_cur_state); |
| device_remove_file(adev->dev, &dev_attr_pp_force_state); |
| device_remove_file(adev->dev, &dev_attr_pp_table); |
| |
| device_remove_file(adev->dev, &dev_attr_pp_dpm_sclk); |
| device_remove_file(adev->dev, &dev_attr_pp_dpm_mclk); |
| device_remove_file(adev->dev, &dev_attr_pp_dpm_pcie); |
| device_remove_file(adev->dev, &dev_attr_pp_sclk_od); |
| device_remove_file(adev->dev, &dev_attr_pp_mclk_od); |
| device_remove_file(adev->dev, |
| &dev_attr_pp_power_profile_mode); |
| device_remove_file(adev->dev, |
| &dev_attr_pp_od_clk_voltage); |
| device_remove_file(adev->dev, &dev_attr_gpu_busy_percent); |
| } |
| |
| void amdgpu_pm_compute_clocks(struct amdgpu_device *adev) |
| { |
| int i = 0; |
| |
| if (!adev->pm.dpm_enabled) |
| return; |
| |
| if (adev->mode_info.num_crtc) |
| amdgpu_display_bandwidth_update(adev); |
| |
| for (i = 0; i < AMDGPU_MAX_RINGS; i++) { |
| struct amdgpu_ring *ring = adev->rings[i]; |
| if (ring && ring->sched.ready) |
| amdgpu_fence_wait_empty(ring); |
| } |
| |
| if (adev->powerplay.pp_funcs->dispatch_tasks) { |
| if (!amdgpu_device_has_dc_support(adev)) { |
| mutex_lock(&adev->pm.mutex); |
| amdgpu_dpm_get_active_displays(adev); |
| adev->pm.pm_display_cfg.num_display = adev->pm.dpm.new_active_crtc_count; |
| adev->pm.pm_display_cfg.vrefresh = amdgpu_dpm_get_vrefresh(adev); |
| adev->pm.pm_display_cfg.min_vblank_time = amdgpu_dpm_get_vblank_time(adev); |
| /* we have issues with mclk switching with refresh rates over 120 hz on the non-DC code. */ |
| if (adev->pm.pm_display_cfg.vrefresh > 120) |
| adev->pm.pm_display_cfg.min_vblank_time = 0; |
| if (adev->powerplay.pp_funcs->display_configuration_change) |
| adev->powerplay.pp_funcs->display_configuration_change( |
| adev->powerplay.pp_handle, |
| &adev->pm.pm_display_cfg); |
| mutex_unlock(&adev->pm.mutex); |
| } |
| amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_DISPLAY_CONFIG_CHANGE, NULL); |
| } else { |
| mutex_lock(&adev->pm.mutex); |
| amdgpu_dpm_get_active_displays(adev); |
| amdgpu_dpm_change_power_state_locked(adev); |
| mutex_unlock(&adev->pm.mutex); |
| } |
| } |
| |
| /* |
| * Debugfs info |
| */ |
| #if defined(CONFIG_DEBUG_FS) |
| |
| static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *adev) |
| { |
| uint32_t value; |
| uint64_t value64; |
| uint32_t query = 0; |
| int size; |
| |
| /* sanity check PP is enabled */ |
| if (!(adev->powerplay.pp_funcs && |
| adev->powerplay.pp_funcs->read_sensor)) |
| return -EINVAL; |
| |
| /* GPU Clocks */ |
| size = sizeof(value); |
| seq_printf(m, "GFX Clocks and Power:\n"); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (MCLK)\n", value/100); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (SCLK)\n", value/100); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (PSTATE_SCLK)\n", value/100); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (PSTATE_MCLK)\n", value/100); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX, (void *)&value, &size)) |
| seq_printf(m, "\t%u mV (VDDGFX)\n", value); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB, (void *)&value, &size)) |
| seq_printf(m, "\t%u mV (VDDNB)\n", value); |
| size = sizeof(uint32_t); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER, (void *)&query, &size)) |
| seq_printf(m, "\t%u.%u W (average GPU)\n", query >> 8, query & 0xff); |
| size = sizeof(value); |
| seq_printf(m, "\n"); |
| |
| /* GPU Temp */ |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, (void *)&value, &size)) |
| seq_printf(m, "GPU Temperature: %u C\n", value/1000); |
| |
| /* GPU Load */ |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD, (void *)&value, &size)) |
| seq_printf(m, "GPU Load: %u %%\n", value); |
| seq_printf(m, "\n"); |
| |
| /* SMC feature mask */ |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK, (void *)&value64, &size)) |
| seq_printf(m, "SMC Feature Mask: 0x%016llx\n", value64); |
| |
| /* UVD clocks */ |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_POWER, (void *)&value, &size)) { |
| if (!value) { |
| seq_printf(m, "UVD: Disabled\n"); |
| } else { |
| seq_printf(m, "UVD: Enabled\n"); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (DCLK)\n", value/100); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (VCLK)\n", value/100); |
| } |
| } |
| seq_printf(m, "\n"); |
| |
| /* VCE clocks */ |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_POWER, (void *)&value, &size)) { |
| if (!value) { |
| seq_printf(m, "VCE: Disabled\n"); |
| } else { |
| seq_printf(m, "VCE: Enabled\n"); |
| if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_ECCLK, (void *)&value, &size)) |
| seq_printf(m, "\t%u MHz (ECCLK)\n", value/100); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void amdgpu_parse_cg_state(struct seq_file *m, u32 flags) |
| { |
| int i; |
| |
| for (i = 0; clocks[i].flag; i++) |
| seq_printf(m, "\t%s: %s\n", clocks[i].name, |
| (flags & clocks[i].flag) ? "On" : "Off"); |
| } |
| |
| static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data) |
| { |
| struct drm_info_node *node = (struct drm_info_node *) m->private; |
| struct drm_device *dev = node->minor->dev; |
| struct amdgpu_device *adev = dev->dev_private; |
| struct drm_device *ddev = adev->ddev; |
| u32 flags = 0; |
| |
| amdgpu_device_ip_get_clockgating_state(adev, &flags); |
| seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags); |
| amdgpu_parse_cg_state(m, flags); |
| seq_printf(m, "\n"); |
| |
| if (!adev->pm.dpm_enabled) { |
| seq_printf(m, "dpm not enabled\n"); |
| return 0; |
| } |
| if ((adev->flags & AMD_IS_PX) && |
| (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) { |
| seq_printf(m, "PX asic powered off\n"); |
| } else if (adev->powerplay.pp_funcs->debugfs_print_current_performance_level) { |
| mutex_lock(&adev->pm.mutex); |
| if (adev->powerplay.pp_funcs->debugfs_print_current_performance_level) |
| adev->powerplay.pp_funcs->debugfs_print_current_performance_level(adev, m); |
| else |
| seq_printf(m, "Debugfs support not implemented for this asic\n"); |
| mutex_unlock(&adev->pm.mutex); |
| } else { |
| return amdgpu_debugfs_pm_info_pp(m, adev); |
| } |
| |
| return 0; |
| } |
| |
| static const struct drm_info_list amdgpu_pm_info_list[] = { |
| {"amdgpu_pm_info", amdgpu_debugfs_pm_info, 0, NULL}, |
| }; |
| #endif |
| |
| static int amdgpu_debugfs_pm_init(struct amdgpu_device *adev) |
| { |
| #if defined(CONFIG_DEBUG_FS) |
| return amdgpu_debugfs_add_files(adev, amdgpu_pm_info_list, ARRAY_SIZE(amdgpu_pm_info_list)); |
| #else |
| return 0; |
| #endif |
| } |