8b3ad17cc3
This patch adds function to the Sparse Memory so that the blocks can be recorded in a cache trace. The blocks are added to the cache recorder which can later write them into a file.
103 lines
3.6 KiB
C++
103 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2009 Advanced Micro Devices, Inc.
|
|
* Copyright (c) 2012 Mark D. Hill and David A. Wood
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution;
|
|
* neither the name of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__
|
|
#define __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__
|
|
|
|
#include <iostream>
|
|
|
|
#include "base/hashmap.hh"
|
|
#include "mem/ruby/common/Address.hh"
|
|
#include "mem/ruby/recorder/CacheRecorder.hh"
|
|
#include "mem/ruby/slicc_interface/AbstractEntry.hh"
|
|
|
|
typedef void* SparseMemEntry;
|
|
typedef m5::hash_map<Address, SparseMemEntry> SparseMapType;
|
|
|
|
struct CurNextInfo
|
|
{
|
|
SparseMapType* curTable;
|
|
int level;
|
|
int highBit;
|
|
int lowBit;
|
|
};
|
|
|
|
class SparseMemory
|
|
{
|
|
public:
|
|
SparseMemory(int number_of_levels);
|
|
~SparseMemory();
|
|
|
|
void printConfig(std::ostream& out) { }
|
|
|
|
bool exist(const Address& address) const;
|
|
void add(const Address& address, AbstractEntry*);
|
|
void remove(const Address& address);
|
|
|
|
/*!
|
|
* Function for recording the contents of memory. This function walks
|
|
* through all the levels of the sparse memory in a breadth first
|
|
* fashion. This might need more memory than a depth first approach.
|
|
* But breadth first seems easier to me than a depth first approach.
|
|
*/
|
|
void recordBlocks(int cntrl_id, CacheRecorder *) const;
|
|
|
|
AbstractEntry* lookup(const Address& address);
|
|
|
|
// Print cache contents
|
|
void print(std::ostream& out) const;
|
|
void printStats(std::ostream& out) const;
|
|
|
|
private:
|
|
// Private Methods
|
|
|
|
// Private copy constructor and assignment operator
|
|
SparseMemory(const SparseMemory& obj);
|
|
SparseMemory& operator=(const SparseMemory& obj);
|
|
|
|
// Used by destructor to recursively remove all tables
|
|
void recursivelyRemoveTables(SparseMapType* currentTable, int level);
|
|
|
|
// recursive search for address and remove associated entries
|
|
int recursivelyRemoveLevels(const Address& address, CurNextInfo& curInfo);
|
|
|
|
// Data Members (m_prefix)
|
|
SparseMapType* m_map_head;
|
|
|
|
int m_total_number_of_bits;
|
|
int m_number_of_levels;
|
|
int* m_number_of_bits_per_level;
|
|
|
|
uint64_t m_total_adds;
|
|
uint64_t m_total_removes;
|
|
uint64_t* m_adds_per_level;
|
|
uint64_t* m_removes_per_level;
|
|
};
|
|
|
|
#endif // __MEM_RUBY_SYSTEM_SPARSEMEMORY_HH__
|