IO: Handle case where ISA Fake device is being used as a fake memory.
[gem5.git] / src / dev / baddev.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 */
30
31 /** @file
32 * BadDevice implemenation
33 */
34
35 #include <deque>
36 #include <string>
37 #include <vector>
38
39 #include "base/trace.hh"
40 #include "config/the_isa.hh"
41 #include "dev/baddev.hh"
42 #include "dev/platform.hh"
43 #include "mem/port.hh"
44 #include "params/BadDevice.hh"
45 #include "sim/system.hh"
46
47 using namespace std;
48
49 BadDevice::BadDevice(Params *p)
50 : BasicPioDevice(p), devname(p->devicename)
51 {
52 pioSize = 0x10;
53 }
54
55 Tick
56 BadDevice::read(PacketPtr pkt)
57 {
58 panic("Device %s not imlpmented\n", devname);
59 M5_DUMMY_RETURN
60 }
61
62 Tick
63 BadDevice::write(PacketPtr pkt)
64 {
65 panic("Device %s not imlpmented\n", devname);
66 M5_DUMMY_RETURN
67 }
68
69 BadDevice *
70 BadDeviceParams::create()
71 {
72 return new BadDevice(this);
73 }