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/*
* Copyright (C) 2019-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include <cstdint>
#include <memory>
#include <vector>
namespace NEO {
struct OSMemory {
public:
struct ReservedCpuAddressRange {
void *originalPtr = nullptr;
void *alignedPtr = nullptr;
size_t sizeToReserve = 0;
size_t actualReservedSize = 0;
};
struct MappedRegion {
uint64_t start = 0, end = 0;
};
using MemoryMaps = std::vector<OSMemory::MappedRegion>;
public:
static std::unique_ptr<OSMemory> create();
virtual ~OSMemory() = default;
MOCKABLE_VIRTUAL ReservedCpuAddressRange reserveCpuAddressRange(size_t sizeToReserve, size_t alignment);
MOCKABLE_VIRTUAL ReservedCpuAddressRange reserveCpuAddressRange(void *baseAddress, size_t sizeToReserve, size_t alignment);
MOCKABLE_VIRTUAL void releaseCpuAddressRange(const ReservedCpuAddressRange &reservedCpuAddressRange);
virtual void getMemoryMaps(MemoryMaps &memoryMaps) = 0;
virtual void *osReserveCpuAddressRange(void *baseAddress, size_t sizeToReserve, bool topDownHint) = 0;
virtual void osReleaseCpuAddressRange(void *reservedCpuAddressRange, size_t reservedSize) = 0;
};
} // namespace NEO
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