mirror of
https://github.com/intel/compute-runtime.git
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3bd4bca911
Dates corrected in copyright headers to reflect original publication date (2018 for OpenCL, 2020 for Level Zero). Signed-off-by: lgotszal <lukasz.gotszald@intel.com>
106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
/*
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* Copyright (C) 2020-2021 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/os_interface/linux/os_interface.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/gmm_helper/gmm_lib.h"
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#include "shared/source/os_interface/hw_info_config.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/sys_calls.h"
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#include <optional>
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#include <string_view>
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#include <sys/stat.h>
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#include <system_error>
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#include <unistd.h>
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namespace NEO {
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bool OSInterface::osEnabled64kbPages = false;
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bool OSInterface::newResourceImplicitFlush = true;
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bool OSInterface::gpuIdleImplicitFlush = true;
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OSInterface::OSInterfaceImpl::OSInterfaceImpl() = default;
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OSInterface::OSInterfaceImpl::~OSInterfaceImpl() = default;
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void OSInterface::OSInterfaceImpl::setDrm(Drm *drm) {
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this->drm.reset(drm);
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}
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bool OSInterface::OSInterfaceImpl::isDebugAttachAvailable() const {
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if (drm) {
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return drm->isDebugAttachAvailable();
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}
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return false;
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}
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OSInterface::OSInterface() {
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osInterfaceImpl = new OSInterfaceImpl();
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}
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OSInterface::~OSInterface() {
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delete osInterfaceImpl;
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}
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bool OSInterface::are64kbPagesEnabled() {
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return osEnabled64kbPages;
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}
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uint32_t OSInterface::getDeviceHandle() const {
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return 0;
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}
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bool OSInterface::isDebugAttachAvailable() const {
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return osInterfaceImpl->isDebugAttachAvailable();
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}
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bool RootDeviceEnvironment::initOsInterface(std::unique_ptr<HwDeviceId> &&hwDeviceId, uint32_t rootDeviceIndex) {
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Drm *drm = Drm::create(std::move(hwDeviceId), *this);
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if (!drm) {
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return false;
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}
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osInterface.reset(new OSInterface());
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osInterface->get()->setDrm(drm);
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auto hardwareInfo = getMutableHardwareInfo();
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HwInfoConfig *hwConfig = HwInfoConfig::get(hardwareInfo->platform.eProductFamily);
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if (hwConfig->configureHwInfo(hardwareInfo, hardwareInfo, osInterface.get())) {
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return false;
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}
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memoryOperationsInterface = DrmMemoryOperationsHandler::create(*drm, rootDeviceIndex);
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return true;
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}
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std::optional<std::string> OSInterface::OSInterfaceImpl::getPciPath(int deviceFd) {
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char path[256] = {0};
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size_t pathlen = 256;
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if (SysCalls::getDevicePath(deviceFd, path, pathlen)) {
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return std::nullopt;
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}
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if (SysCalls::access(path, F_OK)) {
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return std::nullopt;
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}
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int readLinkSize = 0;
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char devicePath[256] = {0};
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readLinkSize = SysCalls::readlink(path, devicePath, pathlen);
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if (readLinkSize == -1) {
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return std::nullopt;
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}
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std::string_view devicePathView(devicePath, static_cast<size_t>(readLinkSize));
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devicePathView = devicePathView.substr(devicePathView.find("/drm/render") - 7u, 7u);
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return std::string(devicePathView);
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}
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} // namespace NEO
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