| /* |
| * Copyright (c) 1999-2012 Mark D. Hill and David A. Wood |
| * Copyright (c) 2010 Advanced Micro Devices, Inc. |
| * 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. |
| */ |
| |
| /* |
| * Recording cache requests made to a ruby cache at certain ruby |
| * time. Also dump the requests to a gziped file. |
| */ |
| |
| #ifndef __MEM_RUBY_SYSTEM_CACHERECORDER_HH__ |
| #define __MEM_RUBY_SYSTEM_CACHERECORDER_HH__ |
| |
| #include <vector> |
| |
| #include "base/types.hh" |
| #include "mem/ruby/common/Address.hh" |
| #include "mem/ruby/common/DataBlock.hh" |
| #include "mem/ruby/common/TypeDefines.hh" |
| #include "mem/ruby/protocol/RubyRequestType.hh" |
| |
| namespace gem5 |
| { |
| |
| namespace ruby |
| { |
| |
| class Sequencer; |
| |
| /*! |
| * Class for recording cache contents. Note that the last element of the |
| * class is an array of length zero. It is used for creating variable |
| * length object, so that while writing the data to a file one does not |
| * need to copy the meta data and the actual data separately. |
| */ |
| class TraceRecord |
| { |
| public: |
| int m_cntrl_id; |
| Tick m_time; |
| Addr m_data_address; |
| Addr m_pc_address; |
| RubyRequestType m_type; |
| uint8_t m_data[0]; |
| |
| void print(std::ostream& out) const; |
| }; |
| |
| class CacheRecorder |
| { |
| public: |
| CacheRecorder(); |
| ~CacheRecorder(); |
| |
| CacheRecorder(uint8_t* uncompressed_trace, |
| uint64_t uncompressed_trace_size, |
| std::vector<Sequencer*>& SequencerMap, |
| uint64_t block_size_bytes); |
| void addRecord(int cntrl, Addr data_addr, Addr pc_addr, |
| RubyRequestType type, Tick time, DataBlock& data); |
| |
| uint64_t aggregateRecords(uint8_t **data, uint64_t size); |
| |
| /*! |
| * Function for flushing the memory contents of the caches to the |
| * main memory. It goes through the recorded contents of the caches, |
| * and issues flush requests. Except for the first one, a flush request |
| * is issued only after the previous one has completed. This currently |
| * requires use of MOESI Hammer protocol since only that protocol |
| * supports flush requests. |
| */ |
| void enqueueNextFlushRequest(); |
| |
| /*! |
| * Function for fetching warming up the memory and the caches. It goes |
| * through the recorded contents of the caches, as available in the |
| * checkpoint and issues fetch requests. Except for the first one, a |
| * fetch request is issued only after the previous one has completed. |
| * It should be possible to use this with any protocol. |
| */ |
| void enqueueNextFetchRequest(); |
| |
| private: |
| // Private copy constructor and assignment operator |
| CacheRecorder(const CacheRecorder& obj); |
| CacheRecorder& operator=(const CacheRecorder& obj); |
| |
| std::vector<TraceRecord*> m_records; |
| uint8_t* m_uncompressed_trace; |
| uint64_t m_uncompressed_trace_size; |
| std::vector<Sequencer*> m_seq_map; |
| uint64_t m_bytes_read; |
| uint64_t m_records_read; |
| uint64_t m_records_flushed; |
| uint64_t m_block_size_bytes; |
| }; |
| |
| inline bool |
| compareTraceRecords(const TraceRecord* n1, const TraceRecord* n2) |
| { |
| return n1->m_time > n2->m_time; |
| } |
| |
| inline std::ostream& |
| operator<<(std::ostream& out, const TraceRecord& obj) |
| { |
| obj.print(out); |
| out << std::flush; |
| return out; |
| } |
| |
| } // namespace ruby |
| } // namespace gem5 |
| |
| #endif //__MEM_RUBY_SYSTEM_CACHERECORDER_HH__ |