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f8623fadaf
- Added support for the Standby APIs in the new sysman design. - Added ULTs for the Standby APIs in the new sysman design. Related-To: LOCI-4097 Signed-off-by: Bari, Pratik <pratik.bari@intel.com>
97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
/*
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* Copyright (C) 2023 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#include "level_zero/sysman/source/standby/linux/os_standby_imp.h"
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#include "shared/source/debug_settings/debug_settings_manager.h"
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namespace L0 {
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namespace Sysman {
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ze_result_t LinuxStandbyImp::osStandbyGetProperties(zes_standby_properties_t &properties) {
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properties.pNext = nullptr;
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properties.type = ZES_STANDBY_TYPE_GLOBAL;
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properties.onSubdevice = isSubdevice;
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properties.subdeviceId = subdeviceId;
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return ZE_RESULT_SUCCESS;
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}
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bool LinuxStandbyImp::isStandbySupported(void) {
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auto rel = pSysfsAccess->canRead(standbyModeFile);
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if (ZE_RESULT_SUCCESS == rel) {
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return true;
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} else {
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NEO::printDebugString(NEO::DebugManager.flags.PrintDebugMessages.get(), stderr,
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"error@<%s> <can't read file %s> <error: 0x%x>\n", __func__, standbyModeFile.c_str(), rel);
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return false;
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}
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return true;
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}
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ze_result_t LinuxStandbyImp::getMode(zes_standby_promo_mode_t &mode) {
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int currentMode = -1;
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ze_result_t result = pSysfsAccess->read(standbyModeFile, currentMode);
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if (ZE_RESULT_SUCCESS != result) {
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if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
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result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
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}
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NEO::printDebugString(NEO::DebugManager.flags.PrintDebugMessages.get(), stderr,
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"error@<%s> <failed to read file %s> <result: 0x%x>\n", __func__, standbyModeFile.c_str(), result);
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return result;
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}
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if (standbyModeDefault == currentMode) {
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mode = ZES_STANDBY_PROMO_MODE_DEFAULT;
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} else if (standbyModeNever == currentMode) {
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mode = ZES_STANDBY_PROMO_MODE_NEVER;
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} else {
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result = ZE_RESULT_ERROR_UNKNOWN;
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NEO::printDebugString(NEO::DebugManager.flags.PrintDebugMessages.get(), stderr,
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"error@<%s> <unknown or internal error occured> <currentMode: %d & result: 0x%x>\n", __func__, currentMode, result);
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}
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return result;
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}
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ze_result_t LinuxStandbyImp::setMode(zes_standby_promo_mode_t mode) {
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ze_result_t result = ZE_RESULT_ERROR_UNKNOWN;
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if (ZES_STANDBY_PROMO_MODE_DEFAULT == mode) {
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result = pSysfsAccess->write(standbyModeFile, standbyModeDefault);
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} else {
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result = pSysfsAccess->write(standbyModeFile, standbyModeNever);
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}
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if (ZE_RESULT_ERROR_NOT_AVAILABLE == result) {
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result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
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NEO::printDebugString(NEO::DebugManager.flags.PrintDebugMessages.get(), stderr,
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"error@<%s> <Unsupported feature> <result: 0x%x>\n", __func__, result);
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}
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return result;
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}
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void LinuxStandbyImp::init() {
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const std::string baseDir = "gt/gt" + std::to_string(subdeviceId) + "/";
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if (pSysfsAccess->directoryExists(baseDir)) {
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standbyModeFile = baseDir + "rc6_enable";
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} else {
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standbyModeFile = "power/rc6_enable";
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}
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}
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LinuxStandbyImp::LinuxStandbyImp(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId) : isSubdevice(onSubdevice), subdeviceId(subdeviceId) {
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LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
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pSysfsAccess = &pLinuxSysmanImp->getSysfsAccess();
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init();
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}
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std::unique_ptr<OsStandby> OsStandby::create(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId) {
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std::unique_ptr<LinuxStandbyImp> pLinuxStandbyImp = std::make_unique<LinuxStandbyImp>(pOsSysman, onSubdevice, subdeviceId);
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return pLinuxStandbyImp;
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}
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} // namespace Sysman
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} // namespace L0
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