platform.cc revision 6658 
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
37using namespace std;
38using namespace TheISA;
39
40Platform::Platform(const Params *p)
41    : SimObject(p), intrctrl(p->intrctrl)
42{
43}
44
45Platform::~Platform()
46{
47}
48
49void
50Platform::postPciInt(int line)
51{
52   panic("No PCI interrupt support in platform.");
53}
54
55void
56Platform::clearPciInt(int line)
57{
58   panic("No PCI interrupt support in platform.");
59}
60
61Addr
62Platform::pciToDma(Addr pciAddr) const
63{
64   panic("No PCI dma support in platform.");
65   M5_DUMMY_RETURN
66}
67
68void
69Platform::registerPciDevice(uint8_t bus, uint8_t dev, uint8_t func, uint8_t intr)
70{
71    uint32_t bdf = bus << 16 | dev << 8 | func << 0;
72    if (pciDevices.find(bdf) != pciDevices.end())
73        fatal("Two PCI devices have same bus:device:function\n");
74
75    if (intLines.test(intr))
76        fatal("Two PCI devices have same interrupt line: %d\n", intr);
77
78    pciDevices.insert(bdf);
79
80    intLines.set(intr);
81}
82