compute-runtime/runtime/memory_manager/svm_memory_manager.h

59 lines
2.0 KiB
C++

/*
* Copyright (c) 2017, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <cstdint>
#include <map>
#include <mutex>
namespace OCLRT {
class Device;
class GraphicsAllocation;
class CommandStreamReceiver;
class MemoryManager;
class SVMAllocsManager {
public:
class MapBasedAllocationTracker {
public:
void insert(GraphicsAllocation &);
void remove(GraphicsAllocation &);
GraphicsAllocation *get(const void *);
size_t getNumAllocs() const { return allocs.size(); };
protected:
std::map<const void *, GraphicsAllocation *> allocs;
};
SVMAllocsManager(MemoryManager *memoryManager);
void *createSVMAlloc(size_t size, bool coherent = false);
GraphicsAllocation *getSVMAlloc(const void *ptr);
void freeSVMAlloc(void *ptr);
size_t getNumAllocs() const { return SVMAllocs.getNumAllocs(); }
protected:
MapBasedAllocationTracker SVMAllocs;
MemoryManager *memoryManager;
std::mutex mtx;
};
} // namespace OCLRT