1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __SYSTEMC_CORE_PORT_HH__
#define __SYSTEMC_CORE_PORT_HH__
#include <list>
#include <typeinfo>
#include <vector>
#include "base/cprintf.hh"
#include "systemc/ext/core/sc_interface.hh"
#include "systemc/ext/core/sc_port.hh"
namespace sc_gem5
{
class StaticSensitivityPort;
class StaticSensitivityFinder;
class Reset;
class Port;
extern std::list<Port *> allPorts;
class Port
{
private:
::sc_core::sc_port_base *portBase;
bool finalized;
int _maxSize;
int _size;
bool regPortNeeded;
void finalizePort(StaticSensitivityPort *port);
void finalizeFinder(StaticSensitivityFinder *finder);
void finalizeReset(Reset *reset);
void
addInterface(::sc_core::sc_interface *iface)
{
portBase->_gem5AddInterface(iface);
_size++;
}
void
addInterfaces(::sc_core::sc_port_base *pb)
{
// Only the ports farthest from the interfaces call register_port.
pb->_gem5Port->regPortNeeded = false;
for (int i = 0; i < pb->size(); i++)
addInterface(pb->_gem5Interface(i));
}
::sc_core::sc_interface *
getInterface(int i)
{
return portBase->_gem5Interface(i);
}
struct Binding
{
explicit Binding(::sc_core::sc_interface *interface) :
interface(interface), port(nullptr)
{}
explicit Binding(::sc_core::sc_port_base *port) :
interface(nullptr), port(port)
{}
::sc_core::sc_interface *interface;
::sc_core::sc_port_base *port;
};
struct Sensitivity
{
Sensitivity(StaticSensitivityPort *port) :
port(port), finder(nullptr)
{}
Sensitivity(StaticSensitivityFinder *finder) :
port(nullptr), finder(finder)
{}
StaticSensitivityPort *port;
StaticSensitivityFinder *finder;
};
std::vector<Binding *> bindings;
std::vector<Sensitivity *> sensitivities;
std::vector<Reset *> resets;
public:
static Port *
fromPort(const ::sc_core::sc_port_base *pb)
{
return pb->_gem5Port;
}
::sc_core::sc_port_base *sc_port_base() { return portBase; }
Port(::sc_core::sc_port_base *port_base, int max) :
portBase(port_base), finalized(false), _maxSize(max), _size(0),
regPortNeeded(true)
{
allPorts.push_front(this);
}
~Port() { allPorts.remove(this); }
void
bind(::sc_core::sc_interface *interface)
{
if (bindings.empty())
addInterface(interface);
else
bindings.push_back(new Binding(interface));
}
void
bind(::sc_core::sc_port_base *port)
{
bindings.push_back(new Binding(port));
}
void sensitive(StaticSensitivityPort *port);
void sensitive(StaticSensitivityFinder *finder);
void addReset(Reset *reset);
void finalize();
void regPort();
int size() { return _size; }
int maxSize() { return _maxSize ? _maxSize : _size; }
};
} // namespace sc_gem5
#endif // __SYSTEMC_CORE_PORT_HH__
|
