xref: /gem5/src/arch/mips/vtophys.cc

/*
 * Copyright (c) 2002-2005 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: Ali Saidi
 *          Nathan Binkert
 *          Jaidev Patwardhan
 */

#include <string>

#include "arch/mips/vtophys.hh"
#include "base/chunk_generator.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "mem/vport.hh"

using namespace std;
using namespace MipsISA;

Addr
MipsISA::vtophys(Addr vaddr)
{
    Addr paddr = 0;
    if (MipsISA::IsUSeg(vaddr))
        DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr);
    else if (MipsISA::IsKSeg0(vaddr))
        paddr = MipsISA::KSeg02Phys(vaddr);
    else if(MipsISA::IsKSeg1(vaddr))
        paddr = MipsISA::KSeg12Phys(vaddr);
    else
        panic("vtophys: ptbr is not set on virtual lookup for vaddr %#x", vaddr);

    DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);

    return paddr;
}

Addr
MipsISA::vtophys(ThreadContext *tc, Addr addr)
{

  fatal("VTOPHYS: Unimplemented on MIPS\n");
}