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/*
* Copyright (C) 2023-2024 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/pmt_util.h"
#include "level_zero/sysman/source/shared/linux/product_helper/sysman_product_helper.h"
#include "level_zero/sysman/source/shared/linux/sysman_fs_access_interface.h"
#include "level_zero/sysman/source/shared/linux/zes_os_sysman_imp.h"
namespace L0 {
namespace Sysman {
static const std::string baseTelemSysfs("/sys/class/intel_pmt");
bool PlatformMonitoringTech::getKeyOffsetMap(SysmanProductHelper *pSysmanProductHelper, std::string guid, std::map<std::string, uint64_t> &keyOffsetMap) {
auto pGuidToKeyOffsetMap = pSysmanProductHelper->getGuidToKeyOffsetMap();
if (pGuidToKeyOffsetMap == nullptr) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to get the pGuidToKeyOffsetMap \n", __FUNCTION__);
return false;
}
auto keyOffsetMapEntry = pGuidToKeyOffsetMap->find(guid);
if (keyOffsetMapEntry == pGuidToKeyOffsetMap->end()) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to find keyOffset in keyOffsetMap \n", __FUNCTION__);
return false;
}
keyOffsetMap = keyOffsetMapEntry->second;
return true;
}
bool PlatformMonitoringTech::getTelemOffsetAndTelemDir(LinuxSysmanImp *pLinuxSysmanImp, uint64_t &telemOffset, std::string &telemDir) {
std::string &rootPath = pLinuxSysmanImp->getPciRootPath();
std::map<uint32_t, std::string> telemPciPath;
NEO::PmtUtil::getTelemNodesInPciPath(std::string_view(rootPath), telemPciPath);
uint32_t subDeviceCount = pLinuxSysmanImp->getSubDeviceCount() + 1;
if (telemPciPath.size() < subDeviceCount) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Number of telemetry nodes:%d is lessthan %d \n", __FUNCTION__, telemPciPath.size(), subDeviceCount);
return false;
}
auto iterator = telemPciPath.begin();
telemDir = iterator->second;
if (!NEO::PmtUtil::readOffset(telemDir, telemOffset)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read offset from %s\n", __FUNCTION__, telemDir.c_str());
return false;
}
return true;
}
bool PlatformMonitoringTech::getTelemOffsetForContainer(SysmanProductHelper *pSysmanProductHelper, const std::string &telemDir, const std::string &key, uint64_t &telemOffset) {
std::array<char, NEO::PmtUtil::guidStringSize> guidString = {};
if (!NEO::PmtUtil::readGuid(telemDir, guidString)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read GUID from %s \n", __FUNCTION__, telemDir.c_str());
return false;
}
std::map<std::string, uint64_t> keyOffsetMap;
if (!PlatformMonitoringTech::getKeyOffsetMap(pSysmanProductHelper, guidString.data(), keyOffsetMap)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to get KeyOffsetMap for Guid : %s\n", __FUNCTION__, guidString.data());
return false;
}
auto keyOffset = keyOffsetMap.find(key.c_str());
if (keyOffset == keyOffsetMap.end()) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to find keyOffset in keyOffsetMap \n", __FUNCTION__);
return false;
}
telemOffset = keyOffset->second;
return true;
}
bool PlatformMonitoringTech::readValue(const std::map<std::string, uint64_t> keyOffsetMap, const std::string &telemDir, const std::string &key, const uint64_t &telemOffset, uint32_t &value) {
auto containerOffset = keyOffsetMap.find(key);
if (containerOffset == keyOffsetMap.end()) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to find keyOffset in keyOffsetMap \n", __FUNCTION__);
return false;
}
uint64_t offset = telemOffset + containerOffset->second;
ssize_t bytesRead = NEO::PmtUtil::readTelem(telemDir.data(), sizeof(uint32_t), offset, &value);
if (bytesRead != sizeof(uint32_t)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read value for %s key \n", __FUNCTION__, key.c_str());
return false;
}
return true;
}
bool PlatformMonitoringTech::readValue(const std::map<std::string, uint64_t> keyOffsetMap, const std::string &telemDir, const std::string &key, const uint64_t &telemOffset, uint64_t &value) {
auto containerOffset = keyOffsetMap.find(key);
if (containerOffset == keyOffsetMap.end()) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to find keyOffset in keyOffsetMap \n", __FUNCTION__);
return false;
}
uint64_t offset = telemOffset + containerOffset->second;
ssize_t bytesRead = NEO::PmtUtil::readTelem(telemDir.data(), sizeof(uint64_t), offset, &value);
if (bytesRead != sizeof(uint64_t)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read value for %s key \n", __FUNCTION__, key.c_str());
return false;
}
return true;
}
bool PlatformMonitoringTech::getTelemDataForTileAggregator(const std::map<uint32_t, std::string> telemNodesInPciPath, uint32_t subdeviceId, std::string &telemDir, std::string &guid, uint64_t &telemOffset) {
uint32_t rootDeviceTelemIndex = telemNodesInPciPath.begin()->first;
const std::string telemNode = "telem" + std::to_string(rootDeviceTelemIndex + subdeviceId + 1);
telemDir = baseTelemSysfs + "/" + telemNode;
if (!NEO::PmtUtil::readOffset(telemDir, telemOffset)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read offset from %s\n", __FUNCTION__, telemDir.c_str());
return false;
}
std::array<char, NEO::PmtUtil::guidStringSize> guidString = {};
if (!NEO::PmtUtil::readGuid(telemDir, guidString)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read GUID from %s \n", __FUNCTION__, telemDir.c_str());
return false;
}
guid = guidString.data();
return true;
}
bool PlatformMonitoringTech::getTelemData(const std::map<uint32_t, std::string> telemNodesInPciPath, std::string &telemDir, std::string &guid, uint64_t &telemOffset) {
auto iterator = telemNodesInPciPath.begin();
telemDir = iterator->second;
if (!NEO::PmtUtil::readOffset(telemDir, telemOffset)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read offset from %s\n", __FUNCTION__, telemDir.c_str());
return false;
}
std::array<char, NEO::PmtUtil::guidStringSize> guidString = {};
if (!NEO::PmtUtil::readGuid(telemDir, guidString)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to read GUID from %s \n", __FUNCTION__, telemDir.c_str());
return false;
}
guid = guidString.data();
return true;
}
bool PlatformMonitoringTech::isTelemetrySupportAvailable(LinuxSysmanImp *pLinuxSysmanImp, uint32_t subdeviceId) {
std::string telemDir = "";
std::string guid = "";
uint64_t offset = 0;
if (!pLinuxSysmanImp->getTelemData(subdeviceId, telemDir, guid, offset)) {
return false;
}
std::map<std::string, uint64_t> keyOffsetMap;
auto pSysmanProductHelper = pLinuxSysmanImp->getSysmanProductHelper();
if (!PlatformMonitoringTech::getKeyOffsetMap(pSysmanProductHelper, guid, keyOffsetMap)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s(): Failed to get KeyOffsetMap for Guid : %s\n", __FUNCTION__, guid.c_str());
return false;
}
std::string telemetryDeviceEntry = telemDir + "/telem";
auto pFsAccess = &pLinuxSysmanImp->getFsAccess();
if (!pFsAccess->fileExists(telemetryDeviceEntry)) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Telemetry support not available. No file %s\n", telemetryDeviceEntry.c_str());
return false;
}
return true;
}
} // namespace Sysman
} // namespace L0
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