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https://github.com/intel/compute-runtime.git
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c7fe7dde90
Fix the sysfs paths for Xe KMD Related-To: NEO-10378 Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@intel.com>
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (C) 2022-2025 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 "shared/source/debug_settings/debug_settings_manager.h"
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#include "shared/source/execution_environment/execution_environment.h"
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#include "shared/source/execution_environment/root_device_environment.h"
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#include "shared/source/os_interface/linux/drm_memory_operations_handler.h"
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#include "shared/source/os_interface/linux/drm_neo.h"
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#include "shared/source/os_interface/linux/file_descriptor.h"
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#include "shared/source/os_interface/linux/ioctl_helper.h"
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#include "shared/source/os_interface/os_interface.h"
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#include "shared/source/utilities/directory.h"
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#include <fcntl.h>
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#include <unistd.h>
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namespace NEO {
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void ExecutionEnvironment::adjustRootDeviceEnvironments() {
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for (auto rootDeviceIndex = 0u; rootDeviceIndex < rootDeviceEnvironments.size(); rootDeviceIndex++) {
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auto drmMemoryOperationsHandler = static_cast<DrmMemoryOperationsHandler *>(rootDeviceEnvironments[rootDeviceIndex]->memoryOperationsInterface.get());
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drmMemoryOperationsHandler->setRootDeviceIndex(rootDeviceIndex);
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}
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}
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void ExecutionEnvironment::configureCcsMode() {
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const auto &ccsString = debugManager.flags.ZEX_NUMBER_OF_CCS.get();
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if (ccsString.compare("default") == 0 ||
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ccsString.empty()) {
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return;
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}
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char *endPtr = nullptr;
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uint32_t ccsMode = static_cast<uint32_t>(std::strtoul(ccsString.c_str(), &endPtr, 10));
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if (endPtr == ccsString.c_str()) {
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return;
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}
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const std::string drmPath = "/sys/class/drm";
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const std::string expectedFilePrefix = drmPath + "/card";
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auto files = Directory::getFiles(drmPath.c_str());
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for (auto rootDeviceIndex = 0u; rootDeviceIndex < rootDeviceEnvironments.size(); rootDeviceIndex++) {
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auto drm = rootDeviceEnvironments[rootDeviceIndex]->osInterface->getDriverModel()->as<NEO::Drm>();
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auto ioctlHelper = drm->getIoctlHelper();
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auto files = Directory::getFiles(drmPath.c_str());
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ioctlHelper->configureCcsMode(files, expectedFilePrefix, ccsMode, deviceCcsModeVec);
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}
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}
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void ExecutionEnvironment::restoreCcsMode() {
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for (auto &[ccsFile, ccsMode] : deviceCcsModeVec) {
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auto fd = FileDescriptor(ccsFile.c_str(), O_WRONLY);
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DEBUG_BREAK_IF(fd < 0);
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if (fd > 0) {
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[[maybe_unused]] auto ret = SysCalls::write(fd, &ccsMode, sizeof(uint32_t));
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DEBUG_BREAK_IF(ret < 0);
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}
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}
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deviceCcsModeVec.clear();
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}
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} // namespace NEO
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