73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
/*
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* Copyright (C) 2018-2021 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_context_linux.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_neo.h"
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#include "shared/source/os_interface/linux/os_interface.h"
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#include "shared/source/os_interface/os_context.h"
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namespace NEO {
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OsContext *OsContext::create(OSInterface *osInterface, uint32_t contextId, DeviceBitfield deviceBitfield,
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aub_stream::EngineType engineType, PreemptionMode preemptionMode,
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bool lowPriority, bool internalEngine, bool rootDevice) {
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if (osInterface) {
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return new OsContextLinux(*osInterface->get()->getDrm(), contextId, deviceBitfield, engineType, preemptionMode,
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lowPriority, internalEngine, rootDevice);
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}
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return new OsContext(contextId, deviceBitfield, engineType, preemptionMode,
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lowPriority, internalEngine, rootDevice);
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}
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OsContextLinux::OsContextLinux(Drm &drm, uint32_t contextId, DeviceBitfield deviceBitfield,
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aub_stream::EngineType engineType, PreemptionMode preemptionMode,
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bool lowPriority, bool internalEngine, bool rootDevice)
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: OsContext(contextId, deviceBitfield, engineType, preemptionMode, lowPriority, internalEngine, rootDevice),
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drm(drm) {
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for (auto deviceIndex = 0u; deviceIndex < deviceBitfield.size(); deviceIndex++) {
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if (deviceBitfield.test(deviceIndex)) {
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auto drmVmId = drm.getVirtualMemoryAddressSpace(deviceIndex);
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auto drmContextId = drm.createDrmContext(drmVmId);
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if (drm.areNonPersistentContextsSupported()) {
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drm.setNonPersistentContext(drmContextId);
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}
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if (drm.getRootDeviceEnvironment().executionEnvironment.isDebuggingEnabled() && !internalEngine) {
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drm.setContextDebugFlag(drmContextId);
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}
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if (drm.isPreemptionSupported() && lowPriority) {
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drm.setLowPriorityContextParam(drmContextId);
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}
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this->engineFlag = drm.bindDrmContext(drmContextId, deviceIndex, engineType);
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this->drmContextIds.push_back(drmContextId);
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if (drm.isPerContextVMRequired()) {
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auto ret = drm.queryVmId(drmContextId, drmVmId);
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DEBUG_BREAK_IF(drmVmId == 0);
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DEBUG_BREAK_IF(ret != 0);
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UNUSED_VARIABLE(ret);
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this->drmVmIds.push_back(drmVmId);
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}
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}
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}
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}
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Drm &OsContextLinux::getDrm() const {
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return this->drm;
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}
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OsContextLinux::~OsContextLinux() {
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for (auto drmContextId : drmContextIds) {
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drm.destroyDrmContext(drmContextId);
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}
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}
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} // namespace NEO
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