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/*
* Copyright (c) 2002-2006 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 Raasch
*/
#ifndef __CPU_FUNC_UNIT_HH__
#define __CPU_FUNC_UNIT_HH__
#include <bitset>
#include <string>
#include <vector>
#include "cpu/op_class.hh"
#include "params/FUDesc.hh"
#include "params/OpDesc.hh"
#include "sim/sim_object.hh"
////////////////////////////////////////////////////////////////////////////
//
// Structures used ONLY during the initialization phase...
//
//
//
class OpDesc : public SimObject
{
public:
OpClass opClass;
Cycles opLat;
bool pipelined;
OpDesc(const OpDescParams *p)
: SimObject(p), opClass(p->opClass), opLat(p->opLat),
pipelined(p->pipelined) {};
};
class FUDesc : public SimObject
{
public:
std::vector<OpDesc *> opDescList;
unsigned number;
FUDesc(const FUDescParams *p)
: SimObject(p), opDescList(p->opList), number(p->count) {};
};
typedef std::vector<OpDesc *>::const_iterator OPDDiterator;
typedef std::vector<FUDesc *>::const_iterator FUDDiterator;
////////////////////////////////////////////////////////////////////////////
//
// The actual FU object
//
//
//
class FuncUnit
{
private:
unsigned opLatencies[Num_OpClasses];
bool pipelined[Num_OpClasses];
std::bitset<Num_OpClasses> capabilityList;
public:
FuncUnit();
FuncUnit(const FuncUnit &fu);
std::string name;
void addCapability(OpClass cap, unsigned oplat, bool pipelined);
bool provides(OpClass capability);
std::bitset<Num_OpClasses> capabilities();
unsigned &opLatency(OpClass capability);
bool isPipelined(OpClass capability);
};
#endif // __FU_POOL_HH__
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