115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*
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* Copyright (C) 2025 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/utilities/timestamp_pool_allocator.h"
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#include "shared/source/device/device.h"
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#include "shared/source/helpers/aligned_memory.h"
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#include "shared/source/memory_manager/allocation_properties.h"
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#include "shared/source/memory_manager/memory_manager.h"
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#include "shared/source/utilities/buffer_pool_allocator.inl"
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namespace NEO {
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TimestampPool::TimestampPool(Device *device, size_t poolSize)
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: BaseType(device->getMemoryManager(), nullptr), device(device) {
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DEBUG_BREAK_IF(device->getProductHelper().is2MBLocalMemAlignmentEnabled() &&
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!isAligned(poolSize, MemoryConstants::pageSize2M));
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AllocationProperties properties{device->getRootDeviceIndex(),
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poolSize,
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AllocationType::gpuTimestampDeviceBuffer,
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device->getDeviceBitfield()};
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auto graphicsAllocation = memoryManager->allocateGraphicsMemoryWithProperties(properties);
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this->mainStorage.reset(graphicsAllocation);
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this->chunkAllocator.reset(new HeapAllocator(params.startingOffset, poolSize, MemoryConstants::pageSize, 0u));
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stackVec.push_back(graphicsAllocation);
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this->mtx = std::make_unique<std::mutex>();
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}
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TimestampPool::TimestampPool(TimestampPool &&pool) : BaseType(std::move(pool)) {
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mtx.reset(pool.mtx.release());
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this->stackVec = std::move(pool.stackVec);
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this->device = pool.device;
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}
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TimestampPool::~TimestampPool() {
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if (mainStorage) {
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device->getMemoryManager()->freeGraphicsMemory(mainStorage.release());
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}
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}
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SharedTimestampAllocation *TimestampPool::allocate(size_t size) {
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auto offset = static_cast<size_t>(this->chunkAllocator->allocate(size));
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if (offset == 0) {
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return nullptr;
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}
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return new SharedTimestampAllocation{this->mainStorage.get(), offset - params.startingOffset, size, mtx.get()};
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}
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const StackVec<GraphicsAllocation *, 1> &TimestampPool::getAllocationsVector() {
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return stackVec;
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}
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TimestampPoolAllocator::TimestampPoolAllocator(Device *device) : device(device) {}
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bool TimestampPoolAllocator::isEnabled() const {
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if (NEO::debugManager.flags.EnableTimestampPoolAllocator.get() != -1) {
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return NEO::debugManager.flags.EnableTimestampPoolAllocator.get();
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}
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return device->getProductHelper().is2MBLocalMemAlignmentEnabled();
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}
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SharedTimestampAllocation *TimestampPoolAllocator::requestGraphicsAllocationForTimestamp(size_t size) {
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if (size > maxAllocationSize) {
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return nullptr;
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}
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std::lock_guard<std::mutex> lock(allocatorMtx);
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if (bufferPools.empty()) {
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addNewBufferPool(TimestampPool(device, alignToPoolSize(defaultPoolSize)));
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}
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auto allocFromPool = allocateFromPools(size);
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if (allocFromPool != nullptr) {
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return allocFromPool;
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}
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this->drain();
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allocFromPool = allocateFromPools(size);
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if (allocFromPool != nullptr) {
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return allocFromPool;
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}
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addNewBufferPool(TimestampPool(device, alignToPoolSize(defaultPoolSize)));
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return allocateFromPools(size);
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}
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void TimestampPoolAllocator::freeSharedTimestampAllocation(SharedTimestampAllocation *sharedTimestampAllocation) {
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std::unique_lock lock(allocatorMtx);
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tryFreeFromPoolBuffer(sharedTimestampAllocation->getGraphicsAllocation(), sharedTimestampAllocation->getOffset(), sharedTimestampAllocation->getSize());
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delete sharedTimestampAllocation;
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}
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SharedTimestampAllocation *TimestampPoolAllocator::allocateFromPools(size_t size) {
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for (auto &pool : bufferPools) {
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if (auto allocation = pool.allocate(size)) {
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return allocation;
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}
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}
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return nullptr;
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}
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size_t TimestampPoolAllocator::alignToPoolSize(size_t size) const {
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return alignUp(size, poolAlignment);
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}
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} // namespace NEO
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