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/*
* Copyright (C) 2021-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/os_context.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/direct_submission/direct_submission_properties.h"
#include "shared/source/helpers/api_specific_config.h"
#include "shared/source/helpers/engine_node_helper.h"
#include "shared/source/helpers/hw_info.h"
namespace NEO {
OsContext::OsContext(uint32_t rootDeviceIndex, uint32_t contextId, const EngineDescriptor &engineDescriptor)
: rootDeviceIndex(rootDeviceIndex),
contextId(contextId),
deviceBitfield(engineDescriptor.deviceBitfield),
preemptionMode(engineDescriptor.preemptionMode),
numSupportedDevices(static_cast<uint32_t>(engineDescriptor.deviceBitfield.count())),
engineType(engineDescriptor.engineTypeUsage.first),
engineUsage(engineDescriptor.engineTypeUsage.second),
rootDevice(engineDescriptor.isRootDevice) {}
bool OsContext::isImmediateContextInitializationEnabled(bool isDefaultEngine) const {
if (debugManager.flags.DeferOsContextInitialization.get() == 0) {
return true;
}
if (engineUsage == EngineUsage::internal) {
return true;
}
if (isDefaultEngine) {
return true;
}
if (engineType == aub_stream::EngineType::ENGINE_BCS && ApiSpecificConfig::ApiType::OCL == ApiSpecificConfig::getApiType()) {
return true;
}
return false;
}
bool OsContext::ensureContextInitialized(bool allocateInterrupt) {
std::call_once(contextInitializedFlag, [this, allocateInterrupt] {
if (debugManager.flags.PrintOsContextInitializations.get()) {
printf("OsContext initialization: contextId=%d usage=%s type=%s isRootDevice=%d\n",
contextId,
EngineHelpers::engineUsageToString(engineUsage).c_str(),
EngineHelpers::engineTypeToString(engineType).c_str(),
static_cast<int>(rootDevice));
}
if (!initializeContext(allocateInterrupt)) {
contextInitialized = false;
} else {
contextInitialized = true;
}
});
return contextInitialized;
}
bool OsContext::isDirectSubmissionAvailable(const HardwareInfo &hwInfo, bool &submitOnInit) {
bool enableDirectSubmission = this->isDirectSubmissionSupported() &&
this->getUmdPowerHintValue() < NEO::OsContext::getUmdPowerHintMax();
if (debugManager.flags.SetCommandStreamReceiver.get() > 0) {
enableDirectSubmission = false;
}
if (debugManager.flags.EnableDirectSubmission.get() != -1) {
enableDirectSubmission = debugManager.flags.EnableDirectSubmission.get();
}
if (enableDirectSubmission) {
auto contextEngineType = this->getEngineType();
const DirectSubmissionProperties &directSubmissionProperty =
hwInfo.capabilityTable.directSubmissionEngines.data[contextEngineType];
bool startDirect = true;
if (this->isLowPriority() || this->isInternalEngine()) {
startDirect &= false;
} else if (!this->isDefaultContext()) {
startDirect = directSubmissionProperty.useNonDefault;
}
submitOnInit = directSubmissionProperty.submitOnInit;
bool engineSupported = checkDirectSubmissionSupportsEngine(directSubmissionProperty,
contextEngineType,
submitOnInit,
startDirect);
if (engineSupported && startDirect) {
this->setDirectSubmissionActive();
}
return engineSupported && startDirect;
}
return false;
}
bool OsContext::checkDirectSubmissionSupportsEngine(const DirectSubmissionProperties &directSubmissionProperty, aub_stream::EngineType contextEngineType, bool &startOnInit, bool &startInContext) {
bool supported = directSubmissionProperty.engineSupported;
startOnInit = directSubmissionProperty.submitOnInit;
if (EngineHelpers::isBcs(contextEngineType)) {
int32_t blitterOverrideKey = debugManager.flags.DirectSubmissionOverrideBlitterSupport.get();
if (blitterOverrideKey != -1) {
supported = blitterOverrideKey == 0 ? false : true;
startOnInit = blitterOverrideKey == 1 ? true : false;
}
} else if (EngineHelpers::isCcs(contextEngineType)) {
int32_t computeOverrideKey = debugManager.flags.DirectSubmissionOverrideComputeSupport.get();
if (computeOverrideKey != -1) {
supported = computeOverrideKey == 0 ? false : true;
startOnInit = computeOverrideKey == 1 ? true : false;
}
} else {
// assume else is RCS
int32_t renderOverrideKey = debugManager.flags.DirectSubmissionOverrideRenderSupport.get();
if (renderOverrideKey != -1) {
supported = renderOverrideKey == 0 ? false : true;
startOnInit = renderOverrideKey == 1 ? true : false;
}
}
// enable start in context only when default support is overridden and enabled
if (supported && !directSubmissionProperty.engineSupported) {
startInContext = true;
}
return supported;
}
} // namespace NEO
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