src/mem/ruby/recorder/TraceRecord.cc

/*
 * Copyright (c) 1999-2008 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.
 */

/*
 * $Id$
 *
 */

#include "mem/ruby/recorder/TraceRecord.hh"
#include "mem/ruby/system/Sequencer.hh"
#include "mem/ruby/system/System.hh"
#include "mem/protocol/CacheMsg.hh"

TraceRecord::TraceRecord(const string & sequencer_name, const Address& data_addr, const Address& pc_addr, RubyRequestType type, Time time)
{
  m_sequencer_name = sequencer_name;
  m_data_address = data_addr;
  m_pc_address = pc_addr;
  m_time = time;
  m_type = type;

  // Don't differentiate between store misses and atomic requests in
  // the trace
  if (m_type == RubyRequestType_Locked_Read) {
    m_type = RubyRequestType_ST;
  }
  else if (m_type == RubyRequestType_Locked_Write) {
    m_type = RubyRequestType_ST;
  }
}

// Public copy constructor and assignment operator
TraceRecord::TraceRecord(const TraceRecord& obj)
{
  *this = obj;  // Call assignment operator
}

TraceRecord& TraceRecord::operator=(const TraceRecord& obj)
{
  m_sequencer_name = obj.m_sequencer_name;
  m_time = obj.m_time;
  m_data_address = obj.m_data_address;
  m_pc_address = obj.m_pc_address;
  m_type = obj.m_type;
  return *this;
}

void TraceRecord::issueRequest() const
{
  // Lookup sequencer pointer from system
  // Note that the chip index also needs to take into account SMT configurations
  Sequencer* sequencer_ptr = RubySystem::getSequencer(m_sequencer_name);
  assert(sequencer_ptr != NULL);

  RubyRequest request(m_data_address.getAddress(), NULL, RubySystem::getBlockSizeBytes(), m_pc_address.getAddress(), m_type, RubyAccessMode_User);

  // Clear out the sequencer
  while (!sequencer_ptr->empty()) {
    g_eventQueue_ptr->triggerEvents(g_eventQueue_ptr->getTime() + 100);
  }

  sequencer_ptr->makeRequest(request);

  // Clear out the sequencer
  while (!sequencer_ptr->empty()) {
    g_eventQueue_ptr->triggerEvents(g_eventQueue_ptr->getTime() + 100);
  }
}

void TraceRecord::print(ostream& out) const
{
  out << "[TraceRecord: Node, " << m_sequencer_name << ", " << m_data_address << ", " << m_pc_address << ", " << m_type << ", Time: " << m_time << "]";
}

void TraceRecord::output(ostream& out) const
{
  out << m_sequencer_name << " ";
  m_data_address.output(out);
  out << " ";
  m_pc_address.output(out);
  out << " ";
  out << m_type;
  out << endl;
}

bool TraceRecord::input(istream& in)
{
  in >> m_sequencer_name;
  m_data_address.input(in);
  m_pc_address.input(in);
  string type;
  if (!in.eof()) {
    in >> type;
    m_type = string_to_RubyRequestType(type);

    // Ignore the rest of the line
    char c = '\0';
    while ((!in.eof()) && (c != '\n')) {
      in.get(c);
    }

    return true;
  } else {
    return false;
  }
}