1/*
2 * Copyright (c) 2015, University of Kaiserslautern
3 * Copyright (c) 2016, Dresden University of Technology (TU Dresden)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 *    this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the copyright holder nor the names of its
18 *    contributors may be used to endorse or promote products derived from
19 *    this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
25 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 * Authors:
34 *    Matthias Jung
35 *    Christian Menard
36 */
37
38#ifndef __SC_EXT_HH__
39#define __SC_EXT_HH__
40
41#include <systemc.h>
42#include <tlm.h>
43
44#include <iostream>
45
46#include "mem/packet.hh"
47
48namespace Gem5SystemC
49{
50
51class Gem5Extension: public tlm::tlm_extension<Gem5Extension>
52{
53  public:
54    Gem5Extension(PacketPtr packet);
55
56    virtual tlm_extension_base* clone() const;
57    virtual void copy_from(const tlm_extension_base& ext);
58
59    static Gem5Extension&
60        getExtension(const tlm::tlm_generic_payload *payload);
61    static Gem5Extension&
62        getExtension(const tlm::tlm_generic_payload &payload);
63    PacketPtr getPacket();
64
65    bool isPipeThrough() const { return pipeThrough; }
66    void setPipeThrough() { pipeThrough = true; }
67
68  private:
69    PacketPtr Packet;
70    bool pipeThrough;
71};
72
73}
74
75#endif
76