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/*
* 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.
*/
/*
* $Id$
*
* Description:
*
*/
#ifndef DETERMINISTICDRIVER_H
#define DETERMINISTICDRIVER_H
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/common/Driver.hh"
#include "mem/ruby/common/Histogram.hh"
#include "mem/protocol/CacheRequestType.hh"
class RubySystem;
class SpecifiedGenerator;
class Packet;
class DeterministicDriver : public Driver, public Consumer {
public:
// Constructors
DeterministicDriver(RubySystem* sys_ptr);
// Destructor
~DeterministicDriver();
// Public Methods
bool isStoreReady(NodeID node);
bool isLoadReady(NodeID node);
bool isStoreReady(NodeID node, Address addr);
bool isLoadReady(NodeID node, Address addr);
void loadCompleted(NodeID node, Address addr);
void storeCompleted(NodeID node, Address addr);
Address getNextLoadAddr(NodeID node);
Address getNextStoreAddr(NodeID node);
int getLoadsCompleted() { return m_loads_completed; }
int getStoresCompleted() { return m_stores_completed; }
void reportDone();
void recordLoadLatency(Time time);
void recordStoreLatency(Time time);
void hitCallback(Packet* pkt);
void wakeup();
void printStats(ostream& out) const;
void clearStats() {}
void printConfig(ostream& out) const {}
void print(ostream& out) const;
private:
// Private Methods
void checkForDeadlock();
Address getNextAddr(NodeID node, Vector<NodeID> addr_vector);
bool isAddrReady(NodeID node, Vector<NodeID> addr_vector);
bool isAddrReady(NodeID node, Vector<NodeID> addr_vector, Address addr);
void setNextAddr(NodeID node, Address addr, Vector<NodeID>& addr_vector);
// Private copy constructor and assignment operator
DeterministicDriver(const DeterministicDriver& obj);
DeterministicDriver& operator=(const DeterministicDriver& obj);
// Data Members (m_ prefix)
Vector<Time> m_last_progress_vector;
Vector<SpecifiedGenerator*> m_generator_vector;
Vector<NodeID> m_load_vector; // Processor last to load the addr
Vector<NodeID> m_store_vector; // Processor last to store the addr
int m_done_counter;
int m_loads_completed;
int m_stores_completed;
// enforces the previous node to have a certain # of completions
// before next node starts
int m_numCompletionsPerNode;
Histogram m_load_latency;
Histogram m_store_latency;
Time m_finish_time;
Time m_last_issue;
};
// Output operator declaration
ostream& operator<<(ostream& out, const DeterministicDriver& obj);
// ******************* Definitions *******************
// Output operator definition
extern inline
ostream& operator<<(ostream& out, const DeterministicDriver& obj)
{
obj.print(out);
out << flush;
return out;
}
#endif //DETERMINISTICDRIVER_H
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