sim_object.hh revision 7492
12SN/A/* 21762SN/A * Copyright (c) 2001-2005 The Regents of The University of Michigan 32SN/A * All rights reserved. 42SN/A * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 292665Ssaidi@eecs.umich.edu * Nathan Binkert 302SN/A */ 312SN/A 322SN/A/* @file 332SN/A * User Console Definitions 342SN/A */ 352SN/A 362SN/A#ifndef __SIM_OBJECT_HH__ 372SN/A#define __SIM_OBJECT_HH__ 382SN/A 395491Sgblack@eecs.umich.edu#include <iostream> 405491Sgblack@eecs.umich.edu#include <list> 412SN/A#include <map> 425491Sgblack@eecs.umich.edu#include <string> 432SN/A#include <vector> 442SN/A 454762Snate@binkert.org#include "params/SimObject.hh" 465605Snate@binkert.org#include "sim/eventq.hh" 4756SN/A#include "sim/serialize.hh" 482SN/A 492797Sktlim@umich.educlass BaseCPU; 502797Sktlim@umich.educlass Event; 512609SN/A 522SN/A/* 532SN/A * Abstract superclass for simulation objects. Represents things that 542SN/A * correspond to physical components and can be specified via the 552SN/A * config file (CPUs, caches, etc.). 562SN/A */ 577492Ssteve.reinhardt@amd.comclass SimObject : public EventManager, public Serializable 582SN/A{ 591553SN/A public: 602797Sktlim@umich.edu enum State { 612901Ssaidi@eecs.umich.edu Running, 622839Sktlim@umich.edu Draining, 632901Ssaidi@eecs.umich.edu Drained 642797Sktlim@umich.edu }; 653202Shsul@eecs.umich.edu 662901Ssaidi@eecs.umich.edu private: 672901Ssaidi@eecs.umich.edu State state; 682797Sktlim@umich.edu 69265SN/A protected: 702797Sktlim@umich.edu void changeState(State new_state) { state = new_state; } 711553SN/A 721553SN/A public: 732797Sktlim@umich.edu State getState() { return state; } 742797Sktlim@umich.edu 752SN/A private: 762SN/A typedef std::vector<SimObject *> SimObjectList; 772SN/A 782SN/A // list of all instantiated simulation objects 792SN/A static SimObjectList simObjectList; 802SN/A 814762Snate@binkert.org protected: 824762Snate@binkert.org const SimObjectParams *_params; 834762Snate@binkert.org 842SN/A public: 854762Snate@binkert.org typedef SimObjectParams Params; 864762Snate@binkert.org const Params *params() const { return _params; } 874762Snate@binkert.org SimObject(const Params *_params); 882SN/A virtual ~SimObject() {} 892SN/A 905034Smilesck@eecs.umich.edu public: 915034Smilesck@eecs.umich.edu 921553SN/A virtual const std::string name() const { return params()->name; } 93265SN/A 941127SN/A // initialization pass of all objects. 951127SN/A // Gets invoked after construction, before unserialize. 96465SN/A virtual void init(); 97465SN/A static void initAll(); 98465SN/A 992SN/A // register statistics for this object 1002SN/A virtual void regStats(); 1012SN/A virtual void regFormulas(); 102330SN/A virtual void resetStats(); 1032SN/A 1047492Ssteve.reinhardt@amd.com // final initialization before simulation 1057492Ssteve.reinhardt@amd.com // all state is unserialized so 1067492Ssteve.reinhardt@amd.com virtual void startup(); 1077492Ssteve.reinhardt@amd.com static void startupAll(); 1087492Ssteve.reinhardt@amd.com 1092SN/A // static: call reg_stats on all SimObjects 1102SN/A static void regAllStats(); 1112SN/A 112330SN/A // static: call resetStats on all SimObjects 113330SN/A static void resetAllStats(); 114330SN/A 115395SN/A // static: call nameOut() & serialize() on all SimObjects 116395SN/A static void serializeAll(std::ostream &); 1172797Sktlim@umich.edu static void unserializeAll(Checkpoint *cp); 118938SN/A 1192609SN/A // Methods to drain objects in order to take checkpoints 1202609SN/A // Or switch from timing -> atomic memory model 1212901Ssaidi@eecs.umich.edu // Drain returns 0 if the simobject can drain immediately or 1222901Ssaidi@eecs.umich.edu // the number of times the drain_event's process function will be called 1232901Ssaidi@eecs.umich.edu // before the object will be done draining. Normally this should be 1 1242901Ssaidi@eecs.umich.edu virtual unsigned int drain(Event *drain_event); 1252797Sktlim@umich.edu virtual void resume(); 1262797Sktlim@umich.edu virtual void setMemoryMode(State new_mode); 1272797Sktlim@umich.edu virtual void switchOut(); 1282797Sktlim@umich.edu virtual void takeOverFrom(BaseCPU *cpu); 1292609SN/A 1301031SN/A#ifdef DEBUG 1311031SN/A public: 1321031SN/A bool doDebugBreak; 1331031SN/A static void debugObjectBreak(const std::string &objs); 1341031SN/A#endif 1351031SN/A 1365314Sstever@gmail.com /** 1375314Sstever@gmail.com * Find the SimObject with the given name and return a pointer to 1385315Sstever@gmail.com * it. Primarily used for interactive debugging. Argument is 1395314Sstever@gmail.com * char* rather than std::string to make it callable from gdb. 1405314Sstever@gmail.com */ 1415314Sstever@gmail.com static SimObject *find(const char *name); 1422SN/A}; 1432SN/A 1442SN/A#endif // __SIM_OBJECT_HH__ 145