vtophys.cc revision 5254 
1/*
2 * Copyright (c) 2007 MIPS Technologies, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 *          Steve Reinhardt
30 *          Ali Saidi
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
42using namespace std;
43using namespace MipsISA;
44
45Addr
46MipsISA::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
63Addr
64MipsISA::vtophys(ThreadContext *tc, Addr addr)
65{
66
67  fatal("VTOPHYS: Unimplemented on MIPS\n");
68}
69
70