/* * Copyright (c) 2002, 2003, 2004, 2005 * The Regents of The University of Michigan * All Rights Reserved * * This code is part of the M5 simulator, developed by Nathan Binkert, * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions * from Ron Dreslinski, Dave Greene, Lisa Hsu, Kevin Lim, Ali Saidi, * and Andrew Schultz. * * Permission is granted to use, copy, create derivative works and * redistribute this software and such derivative works for any * purpose, so long as the copyright notice above, this grant of * permission, and the disclaimer below appear in all copies made; and * so long as the name of The University of Michigan is not used in * any advertising or publicity pertaining to the use or distribution * of this software without specific, written prior authorization. * * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH * DAMAGES. */#ifndef __ENCUMBERED_CPU_FULL_FU_POOL_HH__#define __ENCUMBERED_CPU_FULL_FU_POOL_HH__#include <bitset>#include <list>#include <string>#include <vector>#include "base/sched_list.hh"#include "encumbered/cpu/full/op_class.hh"#include "sim/sim_object.hh"////////////////////////////////////////////////////////////////////////////////  Structures used ONLY during the initialization phase...//////struct OpDesc : public SimObject{    OpClass opClass;    unsigned    opLat;    unsigned    issueLat;    OpDesc(std::string name, OpClass c, unsigned o, unsigned i)	: SimObject(name), opClass(c), opLat(o), issueLat(i) {};};struct FUDesc : public SimObject{    std::vector<OpDesc *> opDescList;    unsigned         number;    FUDesc(std::string name, std::vector<OpDesc *> l, unsigned n)	: SimObject(name), opDescList(l), number(n) {};};typedef std::vector<OpDesc *>::iterator OPDDiterator;typedef std::vector<FUDesc *>::iterator FUDDiterator;////////////////////////////////////////////////////////////////////////////////  The actual FU object//////class FuncUnit{  private:    unsigned opLatencies[Num_OpClasses];    unsigned issueLatencies[Num_OpClasses];    std::bitset<Num_OpClasses> capabilityList;  public:    FuncUnit();    FuncUnit(const FuncUnit &fu);    std::string name;    void addCapability(OpClass cap, unsigned oplat, unsigned issuelat);    bool provides(OpClass capability);    std::bitset<Num_OpClasses> capabilities();    unsigned &opLatency(OpClass capability);    unsigned issueLatency(OpClass capability);};////////////////////////////////////////////////////////////////////////////////  A pool of FU objects//////class FuncUnitPool : public SimObject{  private:    // TODO: convert to array of events scheduled on demand    SchedList< std::list<FuncUnit *> > busyList;    unsigned maxOpLatencies[Num_OpClasses];    typedef std::list<FuncUnit *>::iterator freeListIterator;    unsigned list_length;    std::bitset<Num_OpClasses> capabilityList;  public:    int numFU;    // TODO: possibly convert to array of lists indexed by capability    std::list<FuncUnit *> freeList;    // constructor    FuncUnitPool(std::string name, std::vector<FUDesc *> l);    ~FuncUnitPool();    void annotateMemoryUnits(unsigned hit_latency);    int getUnit(OpClass capability);    void tick();    void dump();    unsigned getLatency(OpClass capability) {	return maxOpLatencies[capability];    }    std::list<FuncUnit *>::iterator fl_iterator;};#endif // __FU_POOL_HH__