80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
/*
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* Copyright (C) 2018-2021 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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#pragma once
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#include <cinttypes>
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#include <cstdlib>
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#include <limits>
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namespace NEO {
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struct OsHandle {
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protected:
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OsHandle() = default;
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};
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struct ResidencyData;
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constexpr int maxFragmentsCount = 3;
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enum class FragmentPosition {
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NONE = 0,
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LEADING,
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MIDDLE,
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TRAILING
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};
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enum OverlapStatus {
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FRAGMENT_NOT_OVERLAPING_WITH_ANY_OTHER = 0,
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FRAGMENT_WITHIN_STORED_FRAGMENT,
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FRAGMENT_WITH_EXACT_SIZE_AS_STORED_FRAGMENT,
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FRAGMENT_OVERLAPING_AND_BIGGER_THEN_STORED_FRAGMENT,
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FRAGMENT_NOT_CHECKED
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};
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enum class RequirementsStatus {
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SUCCESS = 0,
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FATAL
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};
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struct PartialAllocation {
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FragmentPosition fragmentPosition = FragmentPosition::NONE;
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const void *allocationPtr = nullptr;
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size_t allocationSize = 0u;
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};
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struct AllocationRequirements {
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PartialAllocation allocationFragments[maxFragmentsCount];
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uint64_t totalRequiredSize = 0u;
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uint32_t requiredFragmentsCount = 0u;
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uint32_t rootDeviceIndex = std::numeric_limits<uint32_t>::max();
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};
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struct FragmentStorage {
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const void *fragmentCpuPointer = nullptr;
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size_t fragmentSize = 0;
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int refCount = 0;
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OsHandle *osInternalStorage = nullptr;
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ResidencyData *residency = nullptr;
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bool driverAllocation = false;
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};
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struct AllocationStorageData {
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OsHandle *osHandleStorage = nullptr;
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size_t fragmentSize = 0;
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const void *cpuPtr = nullptr;
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bool freeTheFragment = false;
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ResidencyData *residency = nullptr;
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};
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struct OsHandleStorage {
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AllocationStorageData fragmentStorageData[maxFragmentsCount];
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uint32_t fragmentCount = 0;
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};
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} // namespace NEO
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