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/*
* Copyright (C) 2019-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/sysman/frequency/linux/os_frequency_imp.h"
#include "sysman/linux/os_sysman_imp.h"
namespace L0 {
const bool LinuxFrequencyImp::canControl = true; // canControl is true on i915 (GEN9 Hardcode)
ze_result_t LinuxFrequencyImp::osFrequencyGetProperties(zes_freq_properties_t &properties) {
properties.pNext = nullptr;
properties.canControl = canControl;
properties.type = frequencyDomainNumber;
ze_result_t result1 = getMinVal(properties.min);
ze_result_t result2 = getMaxVal(properties.max);
// If can't figure out the valid range, then can't control it.
if (ZE_RESULT_SUCCESS != result1 || ZE_RESULT_SUCCESS != result2) {
properties.canControl = false;
properties.min = 0.0;
properties.max = 0.0;
}
properties.isThrottleEventSupported = false;
properties.onSubdevice = isSubdevice;
properties.subdeviceId = subdeviceId;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::osFrequencyGetRange(zes_freq_range_t *pLimits) {
ze_result_t result = getMax(pLimits->max);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
return getMin(pLimits->min);
}
ze_result_t LinuxFrequencyImp::osFrequencySetRange(const zes_freq_range_t *pLimits) {
double newMin = round(pLimits->min);
double newMax = round(pLimits->max);
double currentMax = 0.0;
ze_result_t result = getMax(currentMax);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
if (newMin > currentMax) {
// set the max first
ze_result_t result = setMax(newMax);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
return setMin(newMin);
}
// set the min first
result = setMin(newMin);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
return setMax(newMax);
}
ze_result_t LinuxFrequencyImp::osFrequencyGetState(zes_freq_state_t *pState) {
ze_result_t result;
result = getRequest(pState->request);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
result = getTdp(pState->tdp);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
result = getEfficient(pState->efficient);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
result = getActual(pState->actual);
if (ZE_RESULT_SUCCESS != result) {
return result;
}
pState->pNext = nullptr;
pState->currentVoltage = -1.0;
pState->throttleReasons = 0u;
return result;
}
ze_result_t LinuxFrequencyImp::osFrequencyGetThrottleTime(zes_freq_throttle_time_t *pThrottleTime) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcCapabilities(zes_oc_capabilities_t *pOcCapabilities) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcFrequencyTarget(double *pCurrentOcFrequency) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::setOcFrequencyTarget(double currentOcFrequency) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcVoltageTarget(double *pCurrentVoltageTarget, double *pCurrentVoltageOffset) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::setOcVoltageTarget(double currentVoltageTarget, double currentVoltageOffset) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcMode(zes_oc_mode_t *pCurrentOcMode) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::setOcMode(zes_oc_mode_t currentOcMode) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcIccMax(double *pOcIccMax) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::setOcIccMax(double ocIccMax) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getOcTjMax(double *pOcTjMax) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::setOcTjMax(double ocTjMax) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t LinuxFrequencyImp::getMin(double &min) {
double intval;
ze_result_t result = pSysfsAccess->read(minFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
min = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::setMin(double min) {
ze_result_t result = pSysfsAccess->write(minFreqFile, min);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getMax(double &max) {
double intval;
ze_result_t result = pSysfsAccess->read(maxFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
max = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::setMax(double max) {
ze_result_t result = pSysfsAccess->write(maxFreqFile, max);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getRequest(double &request) {
double intval;
ze_result_t result = pSysfsAccess->read(requestFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
request = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getTdp(double &tdp) {
double intval;
ze_result_t result = pSysfsAccess->read(tdpFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
tdp = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getActual(double &actual) {
double intval;
ze_result_t result = pSysfsAccess->read(actualFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
actual = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getEfficient(double &efficient) {
double intval;
ze_result_t result = pSysfsAccess->read(efficientFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
efficient = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getMaxVal(double &maxVal) {
double intval;
ze_result_t result = pSysfsAccess->read(maxValFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
maxVal = intval;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxFrequencyImp::getMinVal(double &minVal) {
double intval;
ze_result_t result = pSysfsAccess->read(minValFreqFile, intval);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
minVal = intval;
return ZE_RESULT_SUCCESS;
}
void LinuxFrequencyImp::init() {
minFreqFile = "gt_min_freq_mhz";
maxFreqFile = "gt_max_freq_mhz";
requestFreqFile = "gt_punit_req_freq_mhz";
tdpFreqFile = "gt_raplPL1_freq_mhz";
actualFreqFile = "gt_act_freq_mhz";
efficientFreqFile = "gt_RP1_freq_mhz";
maxValFreqFile = "gt_RP0_freq_mhz";
minValFreqFile = "gt_RPn_freq_mhz";
}
LinuxFrequencyImp::LinuxFrequencyImp(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId, zes_freq_domain_t frequencyDomainNumber) : isSubdevice(onSubdevice), subdeviceId(subdeviceId), frequencyDomainNumber(frequencyDomainNumber) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
pSysfsAccess = &pLinuxSysmanImp->getSysfsAccess();
init();
}
OsFrequency *OsFrequency::create(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId, zes_freq_domain_t frequencyDomainNumber) {
LinuxFrequencyImp *pLinuxFrequencyImp = new LinuxFrequencyImp(pOsSysman, onSubdevice, subdeviceId, frequencyDomainNumber);
return static_cast<OsFrequency *>(pLinuxFrequencyImp);
}
uint16_t OsFrequency::getNumberOfFreqDoainsSupported(OsSysman *pOsSysman) {
return 1; // hardcode for now to support only ZES_FREQ_DOMAIN_GPU
}
} // namespace L0
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