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/*
* Copyright (C) 2018-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include <cinttypes>
#include <cstddef>
#include <limits>
namespace NEO {
struct OsHandle {
virtual ~OsHandle() = default;
protected:
OsHandle() = default;
};
struct ResidencyData;
constexpr int maxFragmentsCount = 3;
enum class FragmentPosition {
none = 0,
leading,
middle,
trailing
};
enum class RequirementsStatus {
success = 0,
fatal
};
struct PartialAllocation {
FragmentPosition fragmentPosition = FragmentPosition::none;
const void *allocationPtr = nullptr;
size_t allocationSize = 0u;
};
struct AllocationRequirements {
PartialAllocation allocationFragments[maxFragmentsCount];
uint64_t totalRequiredSize = 0u;
uint32_t requiredFragmentsCount = 0u;
uint32_t rootDeviceIndex = std::numeric_limits<uint32_t>::max();
};
struct FragmentStorage {
const void *fragmentCpuPointer = nullptr;
size_t fragmentSize = 0;
int refCount = 0;
OsHandle *osInternalStorage = nullptr;
ResidencyData *residency = nullptr;
bool driverAllocation = false;
};
struct AllocationStorageData {
OsHandle *osHandleStorage = nullptr;
size_t fragmentSize = 0;
const void *cpuPtr = nullptr;
bool freeTheFragment = false;
ResidencyData *residency = nullptr;
};
struct OsHandleStorage {
AllocationStorageData fragmentStorageData[maxFragmentsCount];
uint32_t fragmentCount = 0;
};
} // namespace NEO
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