diff options
Diffstat (limited to 'sys/dev/pci/drm/amd/amdgpu/amdgpu_pm.c')
| -rw-r--r-- | sys/dev/pci/drm/amd/amdgpu/amdgpu_pm.c | 2160 |
1 files changed, 2160 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_pm.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_pm.c new file mode 100644 index 00000000000..b811ba056b0 --- /dev/null +++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_pm.c @@ -0,0 +1,2160 @@ +/* + * 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 "atom.h" +#include <linux/power_supply.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/nospec.h> + +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 */ +#ifdef notyet + if (!(adev->flags & AMD_IS_PX) || + (ddev->switch_power_state == DRM_SWITCH_POWER_ON)) +#endif + 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; + +#ifdef notyet + if ((adev->flags & AMD_IS_PX) && + (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) + return snprintf(buf, PAGE_SIZE, "off\n"); +#endif + + 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; + +#ifdef notyet + /* 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; +#endif + + 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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +/** + * 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. + * + * 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. + * + */ + +static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + STUB(); + return -ENOSYS; +#if 0 + 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 + return -EINVAL; + + memcpy(buf_cpy, buf, count+1); + + tmp_str = buf_cpy; + + 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; +#endif +} + +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_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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +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) + amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask); + + 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) + amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask); + + 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) + amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask); + + 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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +/** + * 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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +/** + * 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); + +#ifdef notyet + /* 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; +#endif + + /* 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) +{ + STUB(); + return -ENOSYS; +#if 0 + 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); +#endif +} + +static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + STUB(); + return -ENOSYS; +#if 0 + 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); +#endif +} + +static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + STUB(); + return -ENOSYS; +#if 0 + 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; +#endif +} + +static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + STUB(); + return -ENOSYS; +#if 0 + return sprintf(buf, "%i\n", 0); +#endif +} + +static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + STUB(); + return -ENOSYS; +#if 0 + return sprintf(buf, "%i\n", 255); +#endif +} + +static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + STUB(); + return -ENOSYS; +#if 0 + struct amdgpu_device *adev = dev_get_drvdata(dev); + int err; + u32 value; + +#ifdef notyet + /* 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; +#endif + + 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; +#endif +} + +static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + STUB(); + return -ENOSYS; +#if 0 + 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); +#endif +} + +#ifdef notyet + +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_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_input: fan speed in RPM + * + * 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(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_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)) + 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)) + 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_average.dev_attr.attr || + 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) && + (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || + attr == &sensor_dev_attr_pwm1_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 +}; +#endif /* notyet */ + +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); + } else { + if (enable) { + mutex_lock(&adev->pm.mutex); + adev->pm.dpm.uvd_active = true; + adev->pm.dpm.state = POWER_STATE_TYPE_INTERNAL_UVD; + mutex_unlock(&adev->pm.mutex); + } else { + mutex_lock(&adev->pm.mutex); + adev->pm.dpm.uvd_active = false; + mutex_unlock(&adev->pm.mutex); + } + amdgpu_pm_compute_clocks(adev); + } +} + +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); + } else { + if (enable) { + mutex_lock(&adev->pm.mutex); + adev->pm.dpm.vce_active = true; + /* XXX select vce level based on ring/task */ + adev->pm.dpm.vce_level = AMD_VCE_LEVEL_AC_ALL; + mutex_unlock(&adev->pm.mutex); + amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_CG_STATE_UNGATE); + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_UNGATE); + amdgpu_pm_compute_clocks(adev); + } else { + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_GATE); + amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_CG_STATE_GATE); + mutex_lock(&adev->pm.mutex); + adev->pm.dpm.vce_active = false; + mutex_unlock(&adev->pm.mutex); + amdgpu_pm_compute_clocks(adev); + } + + } +} + +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) +{ + return 0; +#ifdef __linux__ + 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; +#endif +} + +void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev) +{ +#ifdef __linux__ + 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); +#endif +} + +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->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; + 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"); + + /* 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 +} |