src/arch/mips/vtophys.cc

   1 /*
   2  * Copyright (c) 2002-2005 The Regents of The University of Michigan
   3  * Copyright (c) 2007 MIPS Technologies, Inc.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met: redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer;
  10  * redistributions in binary form must reproduce the above copyright
  11  * notice, this list of conditions and the following disclaimer in the
  12  * documentation and/or other materials provided with the distribution;
  13  * neither the name of the copyright holders nor the names of its
  14  * contributors may be used to endorse or promote products derived from
  15  * this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * Authors: Ali Saidi
  30  *          Nathan Binkert
  31  *          Jaidev Patwardhan
  32  */
  33
  34 #include <string>
  35
  36 #include "arch/mips/vtophys.hh"
  37 #include "base/chunk_generator.hh"
  38 #include "base/trace.hh"
  39 #include "cpu/thread_context.hh"
  40 #include "mem/vport.hh"
  41
  42 using namespace std;
  43 using namespace MipsISA;
  44
  45 Addr
  46 MipsISA::vtophys(Addr vaddr)
  47 {
  48     Addr paddr = 0;
  49     if (MipsISA::IsUSeg(vaddr))
  50         DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr);
  51     else if (MipsISA::IsKSeg0(vaddr))
  52         paddr = MipsISA::KSeg02Phys(vaddr);
  53     else if(MipsISA::IsKSeg1(vaddr))
  54         paddr = MipsISA::KSeg12Phys(vaddr);
  55     else
  56         panic("vtophys: ptbr is not set on virtual lookup for vaddr %#x", vaddr);
  57
  58     DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
  59
  60     return paddr;
  61 }
  62
  63 Addr
  64 MipsISA::vtophys(ThreadContext *tc, Addr addr)
  65 {
  66
  67   fatal("VTOPHYS: Unimplemented on MIPS\n");
  68 }
  69