src/arch/mips/regfile.cc

/*
 * Copyright (c) 2003-2005 The Regents of The University of Michigan
 * Copyright (c) 2007 MIPS Technologies, Inc.
 * 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: Gabe Black
 *          Ali Saidi
 *          Korey Sewell
 */

#ifndef __ARCH_MIPS_REGFILE_REGFILE_HH__
#define __ARCH_MIPS_REGFILE_REGFILE_HH__

#include "arch/mips/types.hh"
#include "arch/mips/isa_traits.hh"
#include "arch/mips/mt.hh"
#include "arch/mips/regfile/int_regfile.hh"
#include "arch/mips/regfile/float_regfile.hh"
#include "arch/mips/regfile/misc_regfile.hh"
#include "sim/faults.hh"

class Checkpoint;
class ThreadContext;

using namespace MipsISA;

void RegFile::clear()
{
    intRegFile.clear();
    floatRegFile.clear();
    miscRegFile.clear();
}

void RegFile::reset(std::string core_name, unsigned num_threads, unsigned num_vpes)
{
    bzero(&intRegFile, sizeof(intRegFile));
    bzero(&floatRegFile, sizeof(floatRegFile));
    miscRegFile.reset(core_name, num_threads, num_vpes);
}

IntReg RegFile::readIntReg(int intReg)
{
    return intRegFile.readReg(intReg);
}

Fault RegFile::setIntReg(int intReg, const IntReg &val)
{
    return intRegFile.setReg(intReg, val);
}

MiscReg RegFile::readMiscRegNoEffect(int miscReg, unsigned tid = 0)
{
    return miscRegFile.readRegNoEffect(miscReg, tid);
}

MiscReg RegFile::readMiscReg(int miscReg, ThreadContext *tc,
                             unsigned tid = 0)
{
    return miscRegFile.readReg(miscReg, tc, tid);
}

void RegFile::setMiscRegNoEffect(int miscReg, const MiscReg &val, unsigned tid = 0)
{
    miscRegFile.setRegNoEffect(miscReg, val, tid);
}

void RegFile::setMiscReg(int miscReg, const MiscReg &val,
                         ThreadContext * tc, unsigned tid = 0)
{
    miscRegFile.setReg(miscReg, val, tc, tid);
}

FloatRegVal RegFile::readFloatReg(int floatReg)
{
    return floatRegFile.readReg(floatReg,SingleWidth);
}

FloatRegVal RegFile::readFloatReg(int floatReg, int width)
{
    return floatRegFile.readReg(floatReg,width);
}

FloatRegBits RegFile::readFloatRegBits(int floatReg)
{
    return floatRegFile.readRegBits(floatReg,SingleWidth);
}

FloatRegBits RegFile::readFloatRegBits(int floatReg, int width)
{
    return floatRegFile.readRegBits(floatReg,width);
}

Fault RegFile::setFloatReg(int floatReg, const FloatRegVal &val)
{
    return floatRegFile.setReg(floatReg, val, SingleWidth);
}

Fault RegFile::setFloatReg(int floatReg, const FloatRegVal &val, int width)
{
    return floatRegFile.setReg(floatReg, val, width);
}

Fault RegFile::setFloatRegBits(int floatReg, const FloatRegBits &val)
{
    return floatRegFile.setRegBits(floatReg, val, SingleWidth);
}

Fault RegFile::setFloatRegBits(int floatReg, const FloatRegBits &val, int width)
{
    return floatRegFile.setRegBits(floatReg, val, width);
}

Addr RegFile::readPC()
{
    return pc;
}

void RegFile::setPC(Addr val)
{
    pc = val;
}

Addr RegFile::readNextPC()
{
    return npc;
}

void RegFile::setNextPC(Addr val)
{
    npc = val;
}

Addr RegFile::readNextNPC()
{
    return nnpc;
}

void RegFile::setNextNPC(Addr val)
{
    nnpc = val;
}

void
RegFile::serialize(std::ostream &os)
{
    intRegFile.serialize(os);
    floatRegFile.serialize(os);
    miscRegFile.serialize(os);

    SERIALIZE_SCALAR(pc);
    SERIALIZE_SCALAR(npc);
    SERIALIZE_SCALAR(nnpc);
}


void
RegFile::unserialize(Checkpoint *cp, const std::string &section)
{
    intRegFile.unserialize(cp, section);
    floatRegFile.unserialize(cp, section);
    miscRegFile.unserialize(cp, section);
    UNSERIALIZE_SCALAR(pc);
    UNSERIALIZE_SCALAR(npc);
    UNSERIALIZE_SCALAR(nnpc);

}


void RegFile::changeContext(RegContextParam param, RegContextVal val)
{
    panic("Change Context Not Implemented for MipsISA");
}

static inline int flattenIntIndex(ThreadContext * tc, int reg)
{
    return reg;
}

void
MipsISA::copyRegs(ThreadContext *src, ThreadContext *dest)
{
    panic("Copy Regs Not Implemented Yet\n");
}

void
MipsISA::copyRegs(ThreadContext *src, ThreadContext *dest);
{
    panic("Copy Regs Not Implemented Yet\n");
}

void
MipsISA::copyMiscRegs(ThreadContext *src, ThreadContext *dest)
{
    panic("Copy Misc. Regs Not Implemented Yet\n");
}