Credit.hh revision 11666 
1/*
2 * Copyright (c) 2008 Princeton University
3 * Copyright (c) 2016 Georgia Institute of Technology
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: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Authors: Niket Agarwal
30 *          Tushar Krishna
31 */
32
33
34#ifndef __MEM_RUBY_NETWORK_GARNET_CREDIT_HH__
35#define __MEM_RUBY_NETWORK_GARNET_CREDIT_HH__
36
37#include <cassert>
38#include <iostream>
39
40#include "base/types.hh"
41#include "mem/ruby/network/garnet2.0/CommonTypes.hh"
42#include "mem/ruby/network/garnet2.0/flit.hh"
43
44// Credit Signal for buffers inside VC
45// Carries m_vc (inherits from flit.hh)
46// and m_is_free_signal (whether VC is free or not)
47
48class Credit : public flit
49{
50  public:
51    Credit() {};
52    Credit(int vc, bool is_free_signal, Cycles curTime);
53
54    bool is_free_signal() { return m_is_free_signal; }
55
56  private:
57    bool m_is_free_signal;
58};
59
60#endif // __MEM_RUBY_NETWORK_GARNET_CREDIT_HH__
61