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/*
* Copyright (C) 2022-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/memory_manager/prefetch_manager.h"
#include "shared/source/device/device.h"
#include "shared/source/memory_manager/unified_memory_manager.h"
namespace NEO {
std::unique_ptr<PrefetchManager> PrefetchManager::create() {
return std::make_unique<PrefetchManager>();
}
void PrefetchManager::insertAllocation(PrefetchContext &context, SVMAllocsManager &unifiedMemoryManager, Device &device, const void *usmPtr, const size_t size) {
std::unique_lock<SpinLock> lock{context.lock};
auto allocData = unifiedMemoryManager.getSVMAlloc(usmPtr);
if (!allocData) {
if (device.areSharedSystemAllocationsAllowed()) {
context.allocations.push_back({usmPtr, size});
}
} else if (allocData->memoryType == InternalMemoryType::sharedUnifiedMemory) {
context.allocations.push_back({usmPtr, size});
}
}
void PrefetchManager::migrateAllocationsToGpu(PrefetchContext &context, SVMAllocsManager &unifiedMemoryManager, Device &device, CommandStreamReceiver &csr) {
std::unique_lock<SpinLock> lock{context.lock};
for (auto &allocation : context.allocations) {
unifiedMemoryManager.prefetchMemory(device, csr, allocation.ptr, allocation.size);
}
}
void PrefetchManager::removeAllocations(PrefetchContext &context) {
std::unique_lock<SpinLock> lock{context.lock};
context.allocations.clear();
}
} // namespace NEO
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