gem5/src/sim/sim_object.hh
Nathan Binkert abc76f20cb Major changes to how SimObjects are created and initialized. Almost all
creation and initialization now happens in python.  Parameter objects
are generated and initialized by python.  The .ini file is now solely for
debugging purposes and is not used in construction of the objects in any
way.

--HG--
extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
2007-07-23 21:51:38 -07:00

134 lines
4.1 KiB
C++

/*
* Copyright (c) 2001-2005 The Regents of The University of Michigan
* 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.
*
* Authors: Steve Reinhardt
* Nathan Binkert
*/
/* @file
* User Console Definitions
*/
#ifndef __SIM_OBJECT_HH__
#define __SIM_OBJECT_HH__
#include <map>
#include <list>
#include <vector>
#include <iostream>
#include "params/SimObject.hh"
#include "sim/serialize.hh"
#include "sim/startup.hh"
class BaseCPU;
class Event;
/*
* Abstract superclass for simulation objects. Represents things that
* correspond to physical components and can be specified via the
* config file (CPUs, caches, etc.).
*/
class SimObject : public Serializable, protected StartupCallback
{
public:
enum State {
Running,
Draining,
Drained
};
private:
State state;
protected:
void changeState(State new_state) { state = new_state; }
public:
State getState() { return state; }
private:
typedef std::vector<SimObject *> SimObjectList;
// list of all instantiated simulation objects
static SimObjectList simObjectList;
protected:
const SimObjectParams *_params;
public:
typedef SimObjectParams Params;
const Params *params() const { return _params; }
SimObject(const Params *_params);
SimObject(const std::string &_name);
virtual ~SimObject() {}
virtual const std::string name() const { return params()->name; }
// initialization pass of all objects.
// Gets invoked after construction, before unserialize.
virtual void init();
static void initAll();
// register statistics for this object
virtual void regStats();
virtual void regFormulas();
virtual void resetStats();
// static: call reg_stats on all SimObjects
static void regAllStats();
// static: call resetStats on all SimObjects
static void resetAllStats();
// static: call nameOut() & serialize() on all SimObjects
static void serializeAll(std::ostream &);
static void unserializeAll(Checkpoint *cp);
// Methods to drain objects in order to take checkpoints
// Or switch from timing -> atomic memory model
// Drain returns 0 if the simobject can drain immediately or
// the number of times the drain_event's process function will be called
// before the object will be done draining. Normally this should be 1
virtual unsigned int drain(Event *drain_event);
virtual void resume();
virtual void setMemoryMode(State new_mode);
virtual void switchOut();
virtual void takeOverFrom(BaseCPU *cpu);
#ifdef DEBUG
public:
bool doDebugBreak;
static void debugObjectBreak(const std::string &objs);
#endif
public:
void recordEvent(const std::string &stat);
};
#endif // __SIM_OBJECT_HH__