src/mem/vport.cc

   1 /*
   2  * Copyright (c) 2006 The Regents of The University of Michigan
   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: Ali Saidi
  29  */
  30
  31 /**
  32  * @file Port object definitions.
  33  */
  34
  35 #include "base/chunk_generator.hh"
  36 #include "mem/vport.hh"
  37
  38 void
  39 VirtualPort::readBlob(Addr addr, uint8_t *p, int size)
  40 {
  41     Addr paddr;
  42     for (ChunkGenerator gen(addr, size, TheISA::PageBytes); !gen.done();
  43             gen.next())
  44     {
  45         if (tc)
  46             paddr = TheISA::vtophys(tc,gen.addr());
  47         else
  48             paddr = TheISA::vtophys(gen.addr());
  49
  50         FunctionalPort::readBlob(paddr, p, gen.size());
  51         p += gen.size();
  52     }
  53 }
  54
  55 void
  56 VirtualPort::writeBlob(Addr addr, uint8_t *p, int size)
  57 {
  58     Addr paddr;
  59     for (ChunkGenerator gen(addr, size, TheISA::PageBytes); !gen.done();
  60             gen.next())
  61     {
  62         if (tc)
  63             paddr = TheISA::vtophys(tc,gen.addr());
  64         else
  65             paddr = TheISA::vtophys(gen.addr());
  66
  67         FunctionalPort::writeBlob(paddr, p, gen.size());
  68         p += gen.size();
  69     }
  70 }
  71