1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#ifndef __SYSTEMC_CORE_PORT_HH__
31#define __SYSTEMC_CORE_PORT_HH__
32
33#include <list>
34#include <typeinfo>
35#include <vector>
36
37#include "base/cprintf.hh"
38#include "systemc/ext/core/sc_interface.hh"
39#include "systemc/ext/core/sc_port.hh"
40
41namespace sc_gem5
42{
43
44class StaticSensitivityPort;
45class StaticSensitivityFinder;
46class Reset;
47
48class Port;
49
50extern std::list<Port *> allPorts;
51
52class Port
53{
54 private:
55 ::sc_core::sc_port_base *portBase;
56
57 bool finalized;
58 int _maxSize;
59 int _size;
60
61 bool regPortNeeded;
62
63 void finalizePort(StaticSensitivityPort *port);
64 void finalizeFinder(StaticSensitivityFinder *finder);
65 void finalizeReset(Reset *reset);
66
67 void
68 addInterface(::sc_core::sc_interface *iface)
69 {
70 for (int i = 0; i < _size; i++) {
71 if (getInterface(i) == iface) {
72 std::string msg =
73 csprintf("interface already bound to port: port '%s' (%s)",
74 portBase->name(), portBase->kind());
75 SC_REPORT_ERROR("(E107) bind interface to port failed",
76 msg.c_str());
77 }
78 }
79 _size++;
80 portBase->_gem5AddInterface(iface);
81 }
82
83 void
84 addInterfaces(::sc_core::sc_port_base *pb)
85 {
86 // Only the ports farthest from the interfaces call register_port.
87 pb->_gem5Port->regPortNeeded = false;
88 for (int i = 0; i < pb->size(); i++)
89 addInterface(pb->_gem5Interface(i));
90 }
91
92 ::sc_core::sc_interface *
93 getInterface(int i)
94 {
95 return portBase->_gem5Interface(i);
96 }
97
98 struct Binding
99 {
100 explicit Binding(::sc_core::sc_interface *interface) :
101 interface(interface), port(nullptr)
102 {}
103
104 explicit Binding(::sc_core::sc_port_base *port) :
105 interface(nullptr), port(port)
106 {}
107
108 ::sc_core::sc_interface *interface;
109 ::sc_core::sc_port_base *port;
110 };
111
112 struct Sensitivity
113 {
114 Sensitivity(StaticSensitivityPort *port) :
115 port(port), finder(nullptr)
116 {}
117
118 Sensitivity(StaticSensitivityFinder *finder) :
119 port(nullptr), finder(finder)
120 {}
121
122 StaticSensitivityPort *port;
123 StaticSensitivityFinder *finder;
124 };
125
126 std::vector<Binding *> bindings;
127 std::vector<Sensitivity *> sensitivities;
128 std::vector<Reset *> resets;
129
130 public:
131 static Port *
132 fromPort(const ::sc_core::sc_port_base *pb)
133 {
134 return pb->_gem5Port;
135 }
136
137 ::sc_core::sc_port_base *sc_port_base() { return portBase; }
138
139 Port(::sc_core::sc_port_base *port_base, int max) :
140 portBase(port_base), finalized(false), _maxSize(max), _size(0),
141 regPortNeeded(true)
142 {
143 allPorts.push_front(this);
144 }
145
146 ~Port() { allPorts.remove(this); }
147
148 void
149 bind(::sc_core::sc_interface *interface)
150 {
151 if (bindings.empty())
152 addInterface(interface);
153 else
154 bindings.push_back(new Binding(interface));
155 }
156
157 void
158 bind(::sc_core::sc_port_base *port)
159 {
160 bindings.push_back(new Binding(port));
161 }
162
163 void sensitive(StaticSensitivityPort *port);
164 void sensitive(StaticSensitivityFinder *finder);
165 void addReset(Reset *reset);
166
167 void finalize();
168 void regPort();
169
170 int size() { return _size; }
| 1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#ifndef __SYSTEMC_CORE_PORT_HH__
31#define __SYSTEMC_CORE_PORT_HH__
32
33#include <list>
34#include <typeinfo>
35#include <vector>
36
37#include "base/cprintf.hh"
38#include "systemc/ext/core/sc_interface.hh"
39#include "systemc/ext/core/sc_port.hh"
40
41namespace sc_gem5
42{
43
44class StaticSensitivityPort;
45class StaticSensitivityFinder;
46class Reset;
47
48class Port;
49
50extern std::list<Port *> allPorts;
51
52class Port
53{
54 private:
55 ::sc_core::sc_port_base *portBase;
56
57 bool finalized;
58 int _maxSize;
59 int _size;
60
61 bool regPortNeeded;
62
63 void finalizePort(StaticSensitivityPort *port);
64 void finalizeFinder(StaticSensitivityFinder *finder);
65 void finalizeReset(Reset *reset);
66
67 void
68 addInterface(::sc_core::sc_interface *iface)
69 {
70 for (int i = 0; i < _size; i++) {
71 if (getInterface(i) == iface) {
72 std::string msg =
73 csprintf("interface already bound to port: port '%s' (%s)",
74 portBase->name(), portBase->kind());
75 SC_REPORT_ERROR("(E107) bind interface to port failed",
76 msg.c_str());
77 }
78 }
79 _size++;
80 portBase->_gem5AddInterface(iface);
81 }
82
83 void
84 addInterfaces(::sc_core::sc_port_base *pb)
85 {
86 // Only the ports farthest from the interfaces call register_port.
87 pb->_gem5Port->regPortNeeded = false;
88 for (int i = 0; i < pb->size(); i++)
89 addInterface(pb->_gem5Interface(i));
90 }
91
92 ::sc_core::sc_interface *
93 getInterface(int i)
94 {
95 return portBase->_gem5Interface(i);
96 }
97
98 struct Binding
99 {
100 explicit Binding(::sc_core::sc_interface *interface) :
101 interface(interface), port(nullptr)
102 {}
103
104 explicit Binding(::sc_core::sc_port_base *port) :
105 interface(nullptr), port(port)
106 {}
107
108 ::sc_core::sc_interface *interface;
109 ::sc_core::sc_port_base *port;
110 };
111
112 struct Sensitivity
113 {
114 Sensitivity(StaticSensitivityPort *port) :
115 port(port), finder(nullptr)
116 {}
117
118 Sensitivity(StaticSensitivityFinder *finder) :
119 port(nullptr), finder(finder)
120 {}
121
122 StaticSensitivityPort *port;
123 StaticSensitivityFinder *finder;
124 };
125
126 std::vector<Binding *> bindings;
127 std::vector<Sensitivity *> sensitivities;
128 std::vector<Reset *> resets;
129
130 public:
131 static Port *
132 fromPort(const ::sc_core::sc_port_base *pb)
133 {
134 return pb->_gem5Port;
135 }
136
137 ::sc_core::sc_port_base *sc_port_base() { return portBase; }
138
139 Port(::sc_core::sc_port_base *port_base, int max) :
140 portBase(port_base), finalized(false), _maxSize(max), _size(0),
141 regPortNeeded(true)
142 {
143 allPorts.push_front(this);
144 }
145
146 ~Port() { allPorts.remove(this); }
147
148 void
149 bind(::sc_core::sc_interface *interface)
150 {
151 if (bindings.empty())
152 addInterface(interface);
153 else
154 bindings.push_back(new Binding(interface));
155 }
156
157 void
158 bind(::sc_core::sc_port_base *port)
159 {
160 bindings.push_back(new Binding(port));
161 }
162
163 void sensitive(StaticSensitivityPort *port);
164 void sensitive(StaticSensitivityFinder *finder);
165 void addReset(Reset *reset);
166
167 void finalize();
168 void regPort();
169
170 int size() { return _size; }
|