63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
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* Copyright (C) 2019-2024 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/program/sync_buffer_handler.h"
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#include "shared/source/command_stream/command_stream_receiver.h"
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#include "shared/source/device/device.h"
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#include "shared/source/memory_manager/allocation_properties.h"
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#include "shared/source/memory_manager/graphics_allocation.h"
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#include "shared/source/memory_manager/memory_manager.h"
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#include <cstring>
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namespace NEO {
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SyncBufferHandler::~SyncBufferHandler() {
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memoryManager.checkGpuUsageAndDestroyGraphicsAllocations(graphicsAllocation);
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};
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SyncBufferHandler::SyncBufferHandler(Device &device)
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: device(device), memoryManager(*device.getMemoryManager()) {
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allocateNewBuffer();
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}
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void SyncBufferHandler::makeResident(CommandStreamReceiver &csr) {
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csr.makeResident(*graphicsAllocation);
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}
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void SyncBufferHandler::allocateNewBuffer() {
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AllocationProperties allocationProperties{device.getRootDeviceIndex(), true, bufferSize,
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AllocationType::syncBuffer,
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(device.getNumGenericSubDevices() > 1u), /* multiOsContextCapable */
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false, device.getDeviceBitfield()};
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graphicsAllocation = memoryManager.allocateGraphicsMemoryWithProperties(allocationProperties);
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UNRECOVERABLE_IF(graphicsAllocation == nullptr);
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auto cpuPointer = graphicsAllocation->getUnderlyingBuffer();
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std::memset(cpuPointer, 0, bufferSize);
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}
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std::pair<GraphicsAllocation *, size_t> SyncBufferHandler::obtainAllocationAndOffset(size_t requiredSize) {
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std::lock_guard<std::mutex> guard(this->mutex);
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bool isCurrentBufferFull = (usedBufferSize + requiredSize > bufferSize);
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if (isCurrentBufferFull) {
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memoryManager.checkGpuUsageAndDestroyGraphicsAllocations(graphicsAllocation);
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allocateNewBuffer();
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usedBufferSize = 0;
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}
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std::pair<GraphicsAllocation *, size_t> allocationAndOffset = {graphicsAllocation, usedBufferSize};
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usedBufferSize += requiredSize;
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return allocationAndOffset;
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}
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} // namespace NEO
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