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compute-runtime/level_zero/core/source/event/event.cpp

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/*
* Copyright (C) 2019-2021 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/core/source/event/event.h"
#include "shared/source/command_stream/command_stream_receiver_hw.h"
#include "shared/source/command_stream/csr_definitions.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/device/device.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/execution_environment/root_device_environment.h"
#include "shared/source/helpers/constants.h"
#include "shared/source/helpers/string.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "shared/source/memory_manager/memory_operations_handler.h"
#include "shared/source/utilities/cpuintrinsics.h"
#include "level_zero/core/source/device/device.h"
#include "level_zero/core/source/device/device_imp.h"
#include "level_zero/tools/source/metrics/metric.h"
#include <queue>
#include <unordered_map>
namespace L0 {
ze_result_t EventPoolImp::initialize(DriverHandle *driver, uint32_t numDevices, ze_device_handle_t *phDevices, uint32_t numEvents) {
std::vector<uint32_t> rootDeviceIndices;
uint32_t maxRootDeviceIndex = 0u;
for (uint32_t i = 0u; i < numDevices; i++) {
ze_device_handle_t hDevice = phDevices[i];
auto eventDevice = Device::fromHandle(hDevice);
if (eventDevice == nullptr) {
continue;
}
this->devices.push_back(eventDevice);
rootDeviceIndices.push_back(eventDevice->getNEODevice()->getRootDeviceIndex());
if (maxRootDeviceIndex < eventDevice->getNEODevice()->getRootDeviceIndex()) {
maxRootDeviceIndex = eventDevice->getNEODevice()->getRootDeviceIndex();
}
}
if (this->devices.empty()) {
ze_device_handle_t hDevice;
uint32_t count = 1;
ze_result_t result = driver->getDevice(&count, &hDevice);
if (result) {
return result;
}
this->devices.push_back(Device::fromHandle(hDevice));
rootDeviceIndices.push_back(this->devices[0]->getNEODevice()->getRootDeviceIndex());
maxRootDeviceIndex = rootDeviceIndices[0];
}
eventPoolAllocations = new NEO::MultiGraphicsAllocation(maxRootDeviceIndex);
uint32_t rootDeviceIndex = rootDeviceIndices.at(0);
auto deviceBitfield = devices[0]->getNEODevice()->getDeviceBitfield();
NEO::AllocationProperties unifiedMemoryProperties{rootDeviceIndex,
true,
alignUp<size_t>(numEvents * eventSize, MemoryConstants::pageSize64k),
isEventPoolUsedForTimestamp ? NEO::GraphicsAllocation::AllocationType::TIMESTAMP_PACKET_TAG_BUFFER
: NEO::GraphicsAllocation::AllocationType::BUFFER_HOST_MEMORY,
deviceBitfield.count() > 1,
deviceBitfield.count() > 1,
deviceBitfield};
unifiedMemoryProperties.alignment = eventAlignment;
void *eventPoolPtr = driver->getMemoryManager()->createMultiGraphicsAllocationInSystemMemoryPool(rootDeviceIndices,
unifiedMemoryProperties,
*eventPoolAllocations);
if (!eventPoolPtr) {
return ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY;
}
return ZE_RESULT_SUCCESS;
}
EventPoolImp::~EventPoolImp() {
auto graphicsAllocations = eventPoolAllocations->getGraphicsAllocations();
auto memoryManager = devices[0]->getDriverHandle()->getMemoryManager();
for (auto gpuAllocation : graphicsAllocations) {
memoryManager->freeGraphicsMemory(gpuAllocation);
}
delete eventPoolAllocations;
eventPoolAllocations = nullptr;
}
ze_result_t EventPoolImp::getIpcHandle(ze_ipc_event_pool_handle_t *pIpcHandle) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t EventPoolImp::closeIpcHandle() {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
ze_result_t EventPoolImp::destroy() {
delete this;
return ZE_RESULT_SUCCESS;
}
ze_result_t EventPoolImp::createEvent(const ze_event_desc_t *desc, ze_event_handle_t *phEvent) {
if (desc->index > (getNumEvents() - 1)) {
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
*phEvent = Event::create(this, desc, this->getDevice());
return ZE_RESULT_SUCCESS;
}
Event *Event::create(EventPool *eventPool, const ze_event_desc_t *desc, Device *device) {
auto event = new EventImp(eventPool, desc->index, device);
UNRECOVERABLE_IF(event == nullptr);
if (eventPool->isEventPoolUsedForTimestamp) {
event->isTimestampEvent = true;
event->timestampsData = std::make_unique<TimestampPacketStorage>();
}
auto alloc = eventPool->getAllocation().getGraphicsAllocation(device->getNEODevice()->getRootDeviceIndex());
uint64_t baseHostAddr = reinterpret_cast<uint64_t>(alloc->getUnderlyingBuffer());
event->hostAddress = reinterpret_cast<void *>(baseHostAddr + (desc->index * eventPool->getEventSize()));
event->gpuAddress = alloc->getGpuAddress() + (desc->index * eventPool->getEventSize());
event->signalScope = desc->signal;
event->waitScope = desc->wait;
event->csr = static_cast<DeviceImp *>(device)->neoDevice->getDefaultEngine().commandStreamReceiver;
event->reset();
return event;
}
NEO::GraphicsAllocation &Event::getAllocation() {
auto eventImp = static_cast<EventImp *>(this);
return *eventImp->eventPool->getAllocation().getGraphicsAllocation(eventImp->device->getNEODevice()->getRootDeviceIndex());
}
uint64_t Event::getTimestampPacketAddress() {
return gpuAddress + packetsInUse * sizeof(TimestampPacketStorage::Packet);
}
ze_result_t EventImp::calculateProfilingData() {
globalStartTS = timestampsData->getGlobalStartValue(0);
globalEndTS = timestampsData->getGlobalEndValue(0);
contextStartTS = timestampsData->getContextStartValue(0);
contextEndTS = timestampsData->getContextEndValue(0);
for (auto i = 1u; i < packetsInUse; i++) {
if (globalStartTS > timestampsData->getGlobalStartValue(i)) {
globalStartTS = timestampsData->getGlobalStartValue(i);
}
if (contextStartTS > timestampsData->getContextStartValue(i)) {
contextStartTS = timestampsData->getContextStartValue(i);
}
if (contextEndTS < timestampsData->getContextEndValue(i)) {
contextEndTS = timestampsData->getContextEndValue(i);
}
if (globalEndTS < timestampsData->getGlobalEndValue(i)) {
globalEndTS = timestampsData->getGlobalEndValue(i);
}
}
return ZE_RESULT_SUCCESS;
}
void EventImp::assignTimestampData(void *address) {
uint32_t packetsToCopy = packetsInUse ? packetsInUse : NEO::TimestampPacketSizeControl::preferredPacketCount;
for (uint32_t i = 0; i < packetsToCopy; i++) {
timestampsData->assignDataToAllTimestamps(i, address);
address = ptrOffset(address, sizeof(struct TimestampPacketStorage::Packet));
}
}
ze_result_t Event::destroy() {
delete this;
return ZE_RESULT_SUCCESS;
}
ze_result_t EventImp::queryStatus() {
uint64_t *hostAddr = static_cast<uint64_t *>(hostAddress);
uint32_t queryVal = Event::STATE_CLEARED;
if (metricStreamer != nullptr) {
*hostAddr = metricStreamer->getNotificationState();
}
this->csr->downloadAllocations();
if (isTimestampEvent) {
auto baseAddr = reinterpret_cast<uint64_t>(hostAddress);
auto timeStampAddress = baseAddr + offsetof(TimestampPacketStorage::Packet, contextEnd);
hostAddr = reinterpret_cast<uint64_t *>(timeStampAddress);
}
memcpy_s(static_cast<void *>(&queryVal), sizeof(uint32_t), static_cast<void *>(hostAddr), sizeof(uint32_t));
return queryVal == Event::STATE_CLEARED ? ZE_RESULT_NOT_READY : ZE_RESULT_SUCCESS;
}
ze_result_t EventImp::hostEventSetValueTimestamps(uint32_t eventVal) {
auto baseAddr = reinterpret_cast<uint64_t>(hostAddress);
auto signalScopeFlag = this->signalScope;
auto eventTsSetFunc = [&eventVal, &signalScopeFlag](auto tsAddr) {
auto tsptr = reinterpret_cast<void *>(tsAddr);
memcpy_s(tsptr, sizeof(uint32_t), static_cast<void *>(&eventVal), sizeof(uint32_t));
if (!signalScopeFlag) {
NEO::CpuIntrinsics::clFlush(tsptr);
}
};
for (uint32_t i = 0; i < NEO::TimestampPacketSizeControl::preferredPacketCount; i++) {
eventTsSetFunc(baseAddr + offsetof(TimestampPacketStorage::Packet, contextStart));
eventTsSetFunc(baseAddr + offsetof(TimestampPacketStorage::Packet, globalStart));
eventTsSetFunc(baseAddr + offsetof(TimestampPacketStorage::Packet, contextEnd));
eventTsSetFunc(baseAddr + offsetof(TimestampPacketStorage::Packet, globalEnd));
baseAddr += sizeof(struct TimestampPacketStorage::Packet);
}
assignTimestampData(hostAddress);
return ZE_RESULT_SUCCESS;
}
ze_result_t EventImp::hostEventSetValue(uint32_t eventVal) {
if (isTimestampEvent) {
return hostEventSetValueTimestamps(eventVal);
}
auto hostAddr = static_cast<uint64_t *>(hostAddress);
UNRECOVERABLE_IF(hostAddr == nullptr);
memcpy_s(static_cast<void *>(hostAddr), sizeof(uint32_t), static_cast<void *>(&eventVal), sizeof(uint32_t));
NEO::CpuIntrinsics::clFlush(hostAddr);
return ZE_RESULT_SUCCESS;
}
ze_result_t EventImp::hostSignal() {
return hostEventSetValue(Event::STATE_SIGNALED);
}
ze_result_t EventImp::hostSynchronize(uint64_t timeout) {
std::chrono::high_resolution_clock::time_point time1, time2;
uint64_t timeDiff = 0;
ze_result_t ret = ZE_RESULT_NOT_READY;
if (this->csr->getType() == NEO::CommandStreamReceiverType::CSR_AUB) {
return ZE_RESULT_SUCCESS;
}
if (timeout == 0) {
return queryStatus();
}
time1 = std::chrono::high_resolution_clock::now();
while (true) {
ret = queryStatus();
if (ret == ZE_RESULT_SUCCESS) {
return ZE_RESULT_SUCCESS;
}
std::this_thread::yield();
NEO::CpuIntrinsics::pause();
if (timeout == std::numeric_limits<uint32_t>::max()) {
continue;
}
time2 = std::chrono::high_resolution_clock::now();
timeDiff = std::chrono::duration_cast<std::chrono::nanoseconds>(time2 - time1).count();
if (timeDiff >= timeout) {
break;
}
}
return ret;
}
ze_result_t EventImp::reset() {
resetPackets();
return hostEventSetValue(Event::STATE_INITIAL);
}
ze_result_t EventImp::queryKernelTimestamp(ze_kernel_timestamp_result_t *dstptr) {
ze_kernel_timestamp_result_t &result = *dstptr;
if (queryStatus() != ZE_RESULT_SUCCESS) {
return ZE_RESULT_NOT_READY;
}
assignTimestampData(hostAddress);
calculateProfilingData();
auto eventTsSetFunc = [&](uint64_t &timestampFieldToCopy, uint64_t &timestampFieldForWriting) {
memcpy_s(&(timestampFieldForWriting), sizeof(uint64_t), static_cast<void *>(&timestampFieldToCopy), sizeof(uint64_t));
};
if (!NEO::HwHelper::get(device->getHwInfo().platform.eRenderCoreFamily).useOnlyGlobalTimestamps()) {
eventTsSetFunc(contextStartTS, result.context.kernelStart);
eventTsSetFunc(globalStartTS, result.global.kernelStart);
eventTsSetFunc(contextEndTS, result.context.kernelEnd);
eventTsSetFunc(globalEndTS, result.global.kernelEnd);
} else {
eventTsSetFunc(globalStartTS, result.context.kernelStart);
eventTsSetFunc(globalStartTS, result.global.kernelStart);
eventTsSetFunc(globalEndTS, result.context.kernelEnd);
eventTsSetFunc(globalEndTS, result.global.kernelEnd);
}
return ZE_RESULT_SUCCESS;
}
EventPool *EventPool::create(DriverHandle *driver, uint32_t numDevices,
ze_device_handle_t *phDevices,
const ze_event_pool_desc_t *desc) {
auto eventPool = new EventPoolImp(driver, numDevices, phDevices, desc->count, desc->flags);
if (eventPool == nullptr) {
return nullptr;
}
ze_result_t result = eventPool->initialize(driver, numDevices, phDevices, desc->count);
if (result) {
delete eventPool;
return nullptr;
}
return eventPool;
}
} // namespace L0
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