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/*
* Copyright (C) 2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/sysman/power/linux/dg1/os_power_imp.h"
#include "level_zero/tools/source/sysman/sysman_const.h"
#include "sysman/linux/os_sysman_imp.h"
namespace L0 {
const std::string LinuxPowerImp::hwmonDir("device/hwmon");
const std::string LinuxPowerImp::i915("i915");
const std::string LinuxPowerImp::sustainedPowerLimitEnabled("power1_max_enable");
const std::string LinuxPowerImp::sustainedPowerLimit("power1_max");
const std::string LinuxPowerImp::sustainedPowerLimitInterval("power1_max_interval");
const std::string LinuxPowerImp::burstPowerLimitEnabled("power1_cap_enable");
const std::string LinuxPowerImp::burstPowerLimit("power1_cap");
const std::string LinuxPowerImp::energyCounterNode("energy1_input");
void powerGetTimestamp(uint64_t ×tamp) {
std::chrono::time_point<std::chrono::steady_clock> ts = std::chrono::steady_clock::now();
timestamp = std::chrono::duration_cast<std::chrono::microseconds>(ts.time_since_epoch()).count();
}
ze_result_t LinuxPowerImp::getProperties(zes_power_properties_t *pProperties) {
pProperties->onSubdevice = false;
pProperties->subdeviceId = 0;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxPowerImp::getEnergyCounter(zes_power_energy_counter_t *pEnergy) {
auto result = pSysfsAccess->read(i915HwmonDir + "/" + energyCounterNode, pEnergy->energy);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
powerGetTimestamp(pEnergy->timestamp);
return result;
}
ze_result_t LinuxPowerImp::getLimits(zes_power_sustained_limit_t *pSustained, zes_power_burst_limit_t *pBurst, zes_power_peak_limit_t *pPeak) {
ze_result_t result = ZE_RESULT_ERROR_UNKNOWN;
uint64_t val = 0;
if (pSustained != nullptr) {
result = pSysfsAccess->read(i915HwmonDir + "/" + sustainedPowerLimitEnabled, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
pSustained->enabled = static_cast<ze_bool_t>(val);
if (pSustained->enabled) {
val = 0;
result = pSysfsAccess->read(i915HwmonDir + "/" + sustainedPowerLimit, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
val /= milliFactor; // Convert microWatts to milliwatts
pSustained->power = static_cast<int32_t>(val);
val = 0;
result = pSysfsAccess->read(i915HwmonDir + "/" + sustainedPowerLimitInterval, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
pSustained->interval = static_cast<int32_t>(val);
}
}
if (pBurst != nullptr) {
result = pSysfsAccess->read(i915HwmonDir + "/" + burstPowerLimitEnabled, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
pBurst->enabled = static_cast<ze_bool_t>(val);
if (pBurst->enabled) {
result = pSysfsAccess->read(i915HwmonDir + "/" + burstPowerLimit, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
val /= milliFactor; // Convert microWatts to milliwatts
pBurst->power = static_cast<int32_t>(val);
}
}
if (pPeak != nullptr) {
pPeak->powerAC = -1;
pPeak->powerDC = -1;
result = ZE_RESULT_SUCCESS;
}
return result;
}
ze_result_t LinuxPowerImp::setLimits(const zes_power_sustained_limit_t *pSustained, const zes_power_burst_limit_t *pBurst, const zes_power_peak_limit_t *pPeak) {
ze_result_t result = ZE_RESULT_ERROR_UNKNOWN;
int32_t val = 0;
if (pSustained != nullptr) {
uint64_t isSustainedPowerLimitEnabled = 0;
result = pSysfsAccess->read(i915HwmonDir + "/" + sustainedPowerLimitEnabled, isSustainedPowerLimitEnabled);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
if (isSustainedPowerLimitEnabled) {
val = static_cast<uint32_t>(pSustained->power) * milliFactor; // Convert milliWatts to microwatts
result = pSysfsAccess->write(i915HwmonDir + "/" + sustainedPowerLimit, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
result = pSysfsAccess->write(i915HwmonDir + "/" + sustainedPowerLimitInterval, pSustained->interval);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
}
}
if (pBurst != nullptr) {
result = pSysfsAccess->write(i915HwmonDir + "/" + burstPowerLimitEnabled, static_cast<int>(pBurst->enabled));
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
if (pBurst->enabled) {
val = static_cast<uint32_t>(pBurst->power) * milliFactor; // Convert milliWatts to microwatts
result = pSysfsAccess->write(i915HwmonDir + "/" + burstPowerLimit, val);
if (ZE_RESULT_SUCCESS != result) {
return getErrorCode(result);
}
}
}
return result;
}
ze_result_t LinuxPowerImp::getEnergyThreshold(zes_energy_threshold_t *pThreshold) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxPowerImp::setEnergyThreshold(double threshold) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
bool LinuxPowerImp::isPowerModuleSupported() {
std::vector<std::string> listOfAllHwmonDirs = {};
if (ZE_RESULT_SUCCESS != pSysfsAccess->scanDirEntries(hwmonDir, listOfAllHwmonDirs)) {
return false;
}
for (const auto &tempHwmonDirEntry : listOfAllHwmonDirs) {
const std::string i915NameFile = hwmonDir + "/" + tempHwmonDirEntry + "/" + "name";
std::string name;
if (ZE_RESULT_SUCCESS != pSysfsAccess->read(i915NameFile, name)) {
continue;
}
if (name == i915) {
i915HwmonDir = hwmonDir + "/" + tempHwmonDirEntry;
return true;
}
}
return false;
}
LinuxPowerImp::LinuxPowerImp(OsSysman *pOsSysman) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
pSysfsAccess = &pLinuxSysmanImp->getSysfsAccess();
}
OsPower *OsPower::create(OsSysman *pOsSysman) {
LinuxPowerImp *pLinuxPowerImp = new LinuxPowerImp(pOsSysman);
return static_cast<OsPower *>(pLinuxPowerImp);
}
} // namespace L0
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