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/*
* Copyright (C) 2020-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/core/source/printf_handler/printf_handler.h"
#include "shared/source/command_stream/command_stream_receiver.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/helpers/blit_properties.h"
#include "shared/source/helpers/engine_node_helper.h"
#include "shared/source/memory_manager/allocation_properties.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "shared/source/program/print_formatter.h"
#include "level_zero/core/source/device/device_imp.h"
namespace L0 {
NEO::GraphicsAllocation *PrintfHandler::createPrintfBuffer(Device *device) {
NEO::AllocationProperties properties(
device->getRootDeviceIndex(), PrintfHandler::printfBufferSize, NEO::AllocationType::printfSurface, device->getNEODevice()->getDeviceBitfield());
properties.alignment = MemoryConstants::pageSize64k;
auto allocation = device->getNEODevice()->getMemoryManager()->allocateGraphicsMemoryWithProperties(properties);
*reinterpret_cast<uint32_t *>(allocation->getUnderlyingBuffer()) =
PrintfHandler::printfSurfaceInitialDataSize;
return allocation;
}
void PrintfHandler::printOutput(const KernelImmutableData *kernelData,
NEO::GraphicsAllocation *printfBuffer, Device *device, bool useInternalBlitter) {
bool using32BitGpuPointers = kernelData->getDescriptor().kernelAttributes.gpuPointerSize == 4u;
auto usesStringMap = kernelData->getDescriptor().kernelAttributes.usesStringMap();
auto printfOutputBuffer = static_cast<uint8_t *>(printfBuffer->getUnderlyingBuffer());
auto printfOutputSize = static_cast<uint32_t>(printfBuffer->getUnderlyingBufferSize());
std::unique_ptr<uint8_t[]> printfOutputTemporary;
if (useInternalBlitter) {
auto selectedDevice = device->getNEODevice()->getNearestGenericSubDevice(0);
auto &selectorCopyEngine = selectedDevice->getSelectorCopyEngine();
auto deviceBitfield = selectedDevice->getDeviceBitfield();
const auto internalUsage = true;
auto bcsEngineType = NEO::EngineHelpers::getBcsEngineType(selectedDevice->getRootDeviceEnvironment(), deviceBitfield, selectorCopyEngine, internalUsage);
auto bcsEngineUsage = NEO::EngineUsage::internal;
auto bcsEngine = selectedDevice->tryGetEngine(bcsEngineType, bcsEngineUsage);
if (bcsEngine) {
printfOutputTemporary = std::make_unique<uint8_t[]>(printfOutputSize);
printfOutputBuffer = printfOutputTemporary.get();
NEO::BlitPropertiesContainer blitPropertiesContainer;
blitPropertiesContainer.push_back(
NEO::BlitProperties::constructPropertiesForReadWrite(BlitterConstants::BlitDirection::bufferToHostPtr,
*bcsEngine->commandStreamReceiver, printfBuffer, nullptr,
printfOutputBuffer,
printfBuffer->getGpuAddress(),
0, 0, 0, Vec3<size_t>(printfOutputSize, 0, 0), 0, 0, 0, 0));
const auto newTaskCount = bcsEngine->commandStreamReceiver->flushBcsTask(blitPropertiesContainer, true, *selectedDevice);
if (newTaskCount == NEO::CompletionStamp::gpuHang) {
PRINT_DEBUG_STRING(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Failed to copy printf buffer.\n", "");
printfOutputBuffer = static_cast<uint8_t *>(printfBuffer->getUnderlyingBuffer());
}
}
}
NEO::PrintFormatter printfFormatter{
printfOutputBuffer,
printfOutputSize,
using32BitGpuPointers,
usesStringMap ? &kernelData->getDescriptor().kernelMetadata.printfStringsMap : nullptr};
printfFormatter.printKernelOutput();
*reinterpret_cast<uint32_t *>(printfBuffer->getUnderlyingBuffer()) =
PrintfHandler::printfSurfaceInitialDataSize;
}
size_t PrintfHandler::getPrintBufferSize() {
return PrintfHandler::printfBufferSize;
}
} // namespace L0
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