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#include "systemc/core/sensitivity.hh"
31
32#include "base/logging.hh"
33#include "systemc/core/event.hh"
34#include "systemc/core/port.hh"
35#include "systemc/core/process.hh"
36#include "systemc/core/scheduler.hh"
37#include "systemc/ext/channel/sc_in.hh"
38#include "systemc/ext/channel/sc_inout.hh"
39#include "systemc/ext/channel/sc_out.hh"
40#include "systemc/ext/core/sc_export.hh"
41#include "systemc/ext/core/sc_interface.hh"
42#include "systemc/ext/core/sc_port.hh"
43
44namespace sc_gem5
45{
46
47/*
48 * Common sensitivity interface.
49 */
50
51void
52Sensitivity::satisfy()
53{
54 process->satisfySensitivity(this);
55}
56
57bool
| 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#include "systemc/core/sensitivity.hh"
31
32#include "base/logging.hh"
33#include "systemc/core/event.hh"
34#include "systemc/core/port.hh"
35#include "systemc/core/process.hh"
36#include "systemc/core/scheduler.hh"
37#include "systemc/ext/channel/sc_in.hh"
38#include "systemc/ext/channel/sc_inout.hh"
39#include "systemc/ext/channel/sc_out.hh"
40#include "systemc/ext/core/sc_export.hh"
41#include "systemc/ext/core/sc_interface.hh"
42#include "systemc/ext/core/sc_port.hh"
43
44namespace sc_gem5
45{
46
47/*
48 * Common sensitivity interface.
49 */
50
51void
52Sensitivity::satisfy()
53{
54 process->satisfySensitivity(this);
55}
56
57bool
|
| 58Sensitivity::notifyWork(Event *e)
59{
60 satisfy();
61 return true;
62}
63
64bool
|
58Sensitivity::notify(Event *e)
59{
| 65Sensitivity::notify(Event *e)
66{
|
| 67 if (scheduler.current() == process) {
68 static bool warned = false;
69 if (!warned) {
70 SC_REPORT_WARNING("(W536) immediate self-notification ignored "
71 "as of IEEE 1666-2011", process->name());
72 warned = true;
73 }
74 return false;
75 }
76
|
60 if (process->disabled())
61 return false;
| 77 if (process->disabled())
78 return false;
|
62 satisfy();
63 return true;
| 79
80 return notifyWork(e);
|
64}
65
66bool
67Sensitivity::ofMethod()
68{
69 return process->procKind() == sc_core::SC_METHOD_PROC_;
70}
71
72
73/*
74 * Dynamic vs. static sensitivity.
75 */
76
77void
78DynamicSensitivity::addToEvent(const ::sc_core::sc_event *e)
79{
80 Event::getFromScEvent(e)->addSensitivity(this);
81}
82
83void
84DynamicSensitivity::delFromEvent(const ::sc_core::sc_event *e)
85{
86 Event::getFromScEvent(e)->delSensitivity(this);
87}
88
89void
90StaticSensitivity::addToEvent(const ::sc_core::sc_event *e)
91{
92 Event::getFromScEvent(e)->addSensitivity(this);
93}
94
95void
96StaticSensitivity::delFromEvent(const ::sc_core::sc_event *e)
97{
98 Event::getFromScEvent(e)->delSensitivity(this);
99}
100
101
102/*
103 * Static sensitivities.
104 */
105
106void
107newStaticSensitivityEvent(Process *p, const sc_core::sc_event *e)
108{
109 auto s = new StaticSensitivityEvent(p, e);
110 s->addToEvent(s->event);
111 p->addStatic(s);
112}
113
114void
115newStaticSensitivityInterface(Process *p, const sc_core::sc_interface *i)
116{
117 auto s = new StaticSensitivityInterface(p, i);
118 s->addToEvent(s->event);
119 p->addStatic(s);
120}
121
122void
123newStaticSensitivityPort(Process *p, const sc_core::sc_port_base *pb)
124{
125 auto s = new StaticSensitivityPort(p);
126 Port *port = Port::fromPort(pb);
127 port->sensitive(s);
128 p->addStatic(s);
129}
130
131void
132newStaticSensitivityExport(Process *p, const sc_core::sc_export_base *exp)
133{
134 auto s = new StaticSensitivityExport(p, exp);
135 s->addToEvent(s->event);
136 p->addStatic(s);
137}
138
139void
140newStaticSensitivityFinder(Process *p, const sc_core::sc_event_finder *f)
141{
142 auto s = new StaticSensitivityFinder(p, f);
143 Port *port = Port::fromPort(f->port());
144 port->sensitive(s);
145 p->addStatic(s);
146}
147
148
149StaticSensitivityInterface::StaticSensitivityInterface(
150 Process *p, const sc_core::sc_interface *i) :
151 Sensitivity(p), StaticSensitivity(p),
152 SensitivityEvent(p, &i->default_event())
153{}
154
155StaticSensitivityExport::StaticSensitivityExport(
156 Process *p, const sc_core::sc_export_base *exp) :
157 Sensitivity(p), StaticSensitivity(p),
158 SensitivityEvent(p, &exp->get_interface()->default_event())
159{}
160
161const ::sc_core::sc_event &
162StaticSensitivityFinder::find(::sc_core::sc_interface *i)
163{
164 return finder->find_event(i);
165}
166
167
168/*
169 * Dynamic sensitivities.
170 */
171
172void
173newDynamicSensitivityEvent(Process *p, const sc_core::sc_event *e)
174{
175 auto s = new DynamicSensitivityEvent(p, e);
176 s->addToEvent(s->event);
177 p->setDynamic(s);
178}
179
180void
181newDynamicSensitivityEventOrList(
182 Process *p, const sc_core::sc_event_or_list *eol)
183{
184 auto s = new DynamicSensitivityEventOrList(p, eol);
185 for (auto event: s->events)
186 s->addToEvent(event);
187 p->setDynamic(s);
188}
189
190void newDynamicSensitivityEventAndList(
191 Process *p, const sc_core::sc_event_and_list *eal)
192{
193 auto s = new DynamicSensitivityEventAndList(p, eal);
194 for (auto event: s->events)
195 s->addToEvent(event);
196 p->setDynamic(s);
197}
198
199
200DynamicSensitivityEventOrList::DynamicSensitivityEventOrList(
201 Process *p, const sc_core::sc_event_or_list *eol) :
202 Sensitivity(p), DynamicSensitivity(p), SensitivityEvents(p, eol->events)
203{}
204
205bool
| 81}
82
83bool
84Sensitivity::ofMethod()
85{
86 return process->procKind() == sc_core::SC_METHOD_PROC_;
87}
88
89
90/*
91 * Dynamic vs. static sensitivity.
92 */
93
94void
95DynamicSensitivity::addToEvent(const ::sc_core::sc_event *e)
96{
97 Event::getFromScEvent(e)->addSensitivity(this);
98}
99
100void
101DynamicSensitivity::delFromEvent(const ::sc_core::sc_event *e)
102{
103 Event::getFromScEvent(e)->delSensitivity(this);
104}
105
106void
107StaticSensitivity::addToEvent(const ::sc_core::sc_event *e)
108{
109 Event::getFromScEvent(e)->addSensitivity(this);
110}
111
112void
113StaticSensitivity::delFromEvent(const ::sc_core::sc_event *e)
114{
115 Event::getFromScEvent(e)->delSensitivity(this);
116}
117
118
119/*
120 * Static sensitivities.
121 */
122
123void
124newStaticSensitivityEvent(Process *p, const sc_core::sc_event *e)
125{
126 auto s = new StaticSensitivityEvent(p, e);
127 s->addToEvent(s->event);
128 p->addStatic(s);
129}
130
131void
132newStaticSensitivityInterface(Process *p, const sc_core::sc_interface *i)
133{
134 auto s = new StaticSensitivityInterface(p, i);
135 s->addToEvent(s->event);
136 p->addStatic(s);
137}
138
139void
140newStaticSensitivityPort(Process *p, const sc_core::sc_port_base *pb)
141{
142 auto s = new StaticSensitivityPort(p);
143 Port *port = Port::fromPort(pb);
144 port->sensitive(s);
145 p->addStatic(s);
146}
147
148void
149newStaticSensitivityExport(Process *p, const sc_core::sc_export_base *exp)
150{
151 auto s = new StaticSensitivityExport(p, exp);
152 s->addToEvent(s->event);
153 p->addStatic(s);
154}
155
156void
157newStaticSensitivityFinder(Process *p, const sc_core::sc_event_finder *f)
158{
159 auto s = new StaticSensitivityFinder(p, f);
160 Port *port = Port::fromPort(f->port());
161 port->sensitive(s);
162 p->addStatic(s);
163}
164
165
166StaticSensitivityInterface::StaticSensitivityInterface(
167 Process *p, const sc_core::sc_interface *i) :
168 Sensitivity(p), StaticSensitivity(p),
169 SensitivityEvent(p, &i->default_event())
170{}
171
172StaticSensitivityExport::StaticSensitivityExport(
173 Process *p, const sc_core::sc_export_base *exp) :
174 Sensitivity(p), StaticSensitivity(p),
175 SensitivityEvent(p, &exp->get_interface()->default_event())
176{}
177
178const ::sc_core::sc_event &
179StaticSensitivityFinder::find(::sc_core::sc_interface *i)
180{
181 return finder->find_event(i);
182}
183
184
185/*
186 * Dynamic sensitivities.
187 */
188
189void
190newDynamicSensitivityEvent(Process *p, const sc_core::sc_event *e)
191{
192 auto s = new DynamicSensitivityEvent(p, e);
193 s->addToEvent(s->event);
194 p->setDynamic(s);
195}
196
197void
198newDynamicSensitivityEventOrList(
199 Process *p, const sc_core::sc_event_or_list *eol)
200{
201 auto s = new DynamicSensitivityEventOrList(p, eol);
202 for (auto event: s->events)
203 s->addToEvent(event);
204 p->setDynamic(s);
205}
206
207void newDynamicSensitivityEventAndList(
208 Process *p, const sc_core::sc_event_and_list *eal)
209{
210 auto s = new DynamicSensitivityEventAndList(p, eal);
211 for (auto event: s->events)
212 s->addToEvent(event);
213 p->setDynamic(s);
214}
215
216
217DynamicSensitivityEventOrList::DynamicSensitivityEventOrList(
218 Process *p, const sc_core::sc_event_or_list *eol) :
219 Sensitivity(p), DynamicSensitivity(p), SensitivityEvents(p, eol->events)
220{}
221
222bool
|
206DynamicSensitivityEventOrList::notify(Event *e)
| 223DynamicSensitivityEventOrList::notifyWork(Event *e)
|
207{
| 224{
|
208 if (process->disabled())
209 return false;
210
| |
211 events.erase(e->sc_event());
212
213 // All the other events need this deleted from their lists since this
214 // sensitivity has been satisfied without them triggering.
215 for (auto le: events)
216 delFromEvent(le);
217
218 satisfy();
219 return true;
220}
221
222DynamicSensitivityEventAndList::DynamicSensitivityEventAndList(
223 Process *p, const sc_core::sc_event_and_list *eal) :
224 Sensitivity(p), DynamicSensitivity(p), SensitivityEvents(p, eal->events)
225{}
226
227bool
| 225 events.erase(e->sc_event());
226
227 // All the other events need this deleted from their lists since this
228 // sensitivity has been satisfied without them triggering.
229 for (auto le: events)
230 delFromEvent(le);
231
232 satisfy();
233 return true;
234}
235
236DynamicSensitivityEventAndList::DynamicSensitivityEventAndList(
237 Process *p, const sc_core::sc_event_and_list *eal) :
238 Sensitivity(p), DynamicSensitivity(p), SensitivityEvents(p, eal->events)
239{}
240
241bool
|
228DynamicSensitivityEventAndList::notify(Event *e)
| 242DynamicSensitivityEventAndList::notifyWork(Event *e)
|
229{
| 243{
|
230 if (process->disabled())
231 return false;
232
| |
233 events.erase(e->sc_event());
234
235 // This sensitivity is satisfied if all events have triggered.
236 if (events.empty())
237 satisfy();
238
239 return true;
240}
241
242} // namespace sc_gem5
| 244 events.erase(e->sc_event());
245
246 // This sensitivity is satisfied if all events have triggered.
247 if (events.empty())
248 satisfy();
249
250 return true;
251}
252
253} // namespace sc_gem5
|