86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/*
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* Copyright (C) 2017-2019 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 <cstdint>
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#include <map>
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#include <mutex>
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namespace NEO {
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class Device;
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class GraphicsAllocation;
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class CommandStreamReceiver;
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class MemoryManager;
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struct SvmAllocationData {
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GraphicsAllocation *cpuAllocation = nullptr;
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GraphicsAllocation *gpuAllocation = nullptr;
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size_t size = 0;
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};
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struct SvmMapOperation {
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void *regionSvmPtr = nullptr;
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size_t regionSize = 0;
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void *baseSvmPtr = nullptr;
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size_t offset = 0;
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bool readOnlyMap = false;
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};
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class SVMAllocsManager {
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public:
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class MapBasedAllocationTracker {
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public:
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using SvmAllocationContainer = std::map<const void *, SvmAllocationData>;
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void insert(SvmAllocationData);
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void remove(SvmAllocationData);
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SvmAllocationData *get(const void *);
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size_t getNumAllocs() const { return allocations.size(); };
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protected:
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SvmAllocationContainer allocations;
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};
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struct MapOperationsTracker {
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using SvmMapOperationsContainer = std::map<const void *, SvmMapOperation>;
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void insert(SvmMapOperation);
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void remove(const void *);
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SvmMapOperation *get(const void *);
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size_t getNumMapOperations() const { return operations.size(); };
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protected:
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SvmMapOperationsContainer operations;
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};
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struct SvmAllocationProperties {
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bool coherent = false;
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bool hostPtrReadOnly = false;
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bool readOnly = false;
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};
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SVMAllocsManager(MemoryManager *memoryManager);
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void *createSVMAlloc(size_t size, const SvmAllocationProperties svmProperties);
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SvmAllocationData *getSVMAlloc(const void *ptr);
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void freeSVMAlloc(void *ptr);
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size_t getNumAllocs() const { return SVMAllocs.getNumAllocs(); }
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void insertSvmMapOperation(void *regionSvmPtr, size_t regionSize, void *baseSvmPtr, size_t offset, bool readOnlyMap);
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void removeSvmMapOperation(const void *regionSvmPtr);
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SvmMapOperation *getSvmMapOperation(const void *regionPtr);
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protected:
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void *createZeroCopySvmAllocation(size_t size, const SvmAllocationProperties &svmProperties);
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void *createSvmAllocationWithDeviceStorage(size_t size, const SvmAllocationProperties &svmProperties);
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void freeZeroCopySvmAllocation(SvmAllocationData *svmData);
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void freeSvmAllocationWithDeviceStorage(SvmAllocationData *svmData);
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MapBasedAllocationTracker SVMAllocs;
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MapOperationsTracker svmMapOperations;
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MemoryManager *memoryManager;
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std::mutex mtx;
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};
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} // namespace NEO
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