src/dev/platform.cc

   1 /*
   2  * Copyright (c) 2004-2005 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  *          Nathan Binkert
  30  */
  31
  32 #include "base/misc.hh"
  33 #include "config/the_isa.hh"
  34 #include "dev/platform.hh"
  35 #include "sim/sim_exit.hh"
  36
  37 using namespace std;
  38
  39 Platform::Platform(const Params *p)
  40     : SimObject(p), intrctrl(p->intrctrl)
  41 {
  42 }
  43
  44 Platform::~Platform()
  45 {
  46 }
  47
  48 void
  49 Platform::postPciInt(int line)
  50 {
  51    panic("No PCI interrupt support in platform.");
  52 }
  53
  54 void
  55 Platform::clearPciInt(int line)
  56 {
  57    panic("No PCI interrupt support in platform.");
  58 }
  59
  60 Addr
  61 Platform::pciToDma(Addr pciAddr) const
  62 {
  63    panic("No PCI dma support in platform.");
  64    M5_DUMMY_RETURN
  65 }
  66
  67 void
  68 Platform::registerPciDevice(uint8_t bus, uint8_t dev, uint8_t func, uint8_t intr)
  69 {
  70     uint32_t bdf = bus << 16 | dev << 8 | func << 0;
  71     if (pciDevices.find(bdf) != pciDevices.end())
  72         fatal("Two PCI devices have same bus:device:function\n");
  73
  74     if (intLines.test(intr))
  75         fatal("Two PCI devices have same interrupt line: %d\n", intr);
  76
  77     pciDevices.insert(bdf);
  78
  79     intLines.set(intr);
  80 }