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/kernel.hh"
31
32#include "base/logging.hh"
33#include "systemc/core/channel.hh"
34#include "systemc/core/module.hh"
35#include "systemc/core/scheduler.hh"
36
37namespace sc_gem5
38{
39
40namespace
41{
42
43bool scMainDone = false;
44bool stopAfterCallbacks = false;
45bool startComplete = false;
46bool endComplete = false;
47
48sc_core::sc_status _status = sc_core::SC_ELABORATION;
49
50} // anonymous namespace
51
52bool Kernel::startOfSimulationComplete() { return startComplete; }
53bool Kernel::endOfSimulationComplete() { return endComplete; }
54
55bool Kernel::scMainFinished() { return scMainDone; }
56void Kernel::scMainFinished(bool finished) { scMainDone = finished; }
57
58sc_core::sc_status Kernel::status() { return _status; }
59void Kernel::status(sc_core::sc_status s) { _status = s; }
60
61Kernel::Kernel(Params *params) :
62 SimObject(params), t0Event(this, false, EventBase::Default_Pri - 1)
63{
64 // Install ourselves as the scheduler's event manager.
65 ::sc_gem5::scheduler.setEventQueue(eventQueue());
66}
67
68void
69Kernel::init()
70{
71 if (scMainDone)
72 return;
73
74 if (stopAfterCallbacks)
75 fatal("Simulation called sc_stop during elaboration.\n");
76
77 status(::sc_core::SC_BEFORE_END_OF_ELABORATION);
78 for (auto m: sc_gem5::allModules) {
79 callbackModule(m);
80 m->sc_mod()->before_end_of_elaboration();
81 for (auto p: m->ports)
82 p->before_end_of_elaboration();
83 for (auto e: m->exports)
84 e->before_end_of_elaboration();
85 }
86 callbackModule(nullptr);
87 for (auto c: sc_gem5::allChannels)
88 c->sc_chan()->before_end_of_elaboration();
89}
90
91void
92Kernel::regStats()
93{
94 if (scMainDone || stopAfterCallbacks)
95 return;
96
| 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/kernel.hh"
31
32#include "base/logging.hh"
33#include "systemc/core/channel.hh"
34#include "systemc/core/module.hh"
35#include "systemc/core/scheduler.hh"
36
37namespace sc_gem5
38{
39
40namespace
41{
42
43bool scMainDone = false;
44bool stopAfterCallbacks = false;
45bool startComplete = false;
46bool endComplete = false;
47
48sc_core::sc_status _status = sc_core::SC_ELABORATION;
49
50} // anonymous namespace
51
52bool Kernel::startOfSimulationComplete() { return startComplete; }
53bool Kernel::endOfSimulationComplete() { return endComplete; }
54
55bool Kernel::scMainFinished() { return scMainDone; }
56void Kernel::scMainFinished(bool finished) { scMainDone = finished; }
57
58sc_core::sc_status Kernel::status() { return _status; }
59void Kernel::status(sc_core::sc_status s) { _status = s; }
60
61Kernel::Kernel(Params *params) :
62 SimObject(params), t0Event(this, false, EventBase::Default_Pri - 1)
63{
64 // Install ourselves as the scheduler's event manager.
65 ::sc_gem5::scheduler.setEventQueue(eventQueue());
66}
67
68void
69Kernel::init()
70{
71 if (scMainDone)
72 return;
73
74 if (stopAfterCallbacks)
75 fatal("Simulation called sc_stop during elaboration.\n");
76
77 status(::sc_core::SC_BEFORE_END_OF_ELABORATION);
78 for (auto m: sc_gem5::allModules) {
79 callbackModule(m);
80 m->sc_mod()->before_end_of_elaboration();
81 for (auto p: m->ports)
82 p->before_end_of_elaboration();
83 for (auto e: m->exports)
84 e->before_end_of_elaboration();
85 }
86 callbackModule(nullptr);
87 for (auto c: sc_gem5::allChannels)
88 c->sc_chan()->before_end_of_elaboration();
89}
90
91void
92Kernel::regStats()
93{
94 if (scMainDone || stopAfterCallbacks)
95 return;
96
|
97 for (auto m: sc_gem5::allModules)
98 for (auto p: m->ports)
99 p->_gem5Finalize();
| 97 try {
98 for (auto m: sc_gem5::allModules)
99 for (auto p: m->ports)
100 p->_gem5Finalize();
|
100
| 101
|
101 status(::sc_core::SC_END_OF_ELABORATION);
102 for (auto m: sc_gem5::allModules) {
103 callbackModule(m);
104 m->sc_mod()->end_of_elaboration();
105 for (auto p: m->ports)
106 p->end_of_elaboration();
107 for (auto e: m->exports)
108 e->end_of_elaboration();
| 102 status(::sc_core::SC_END_OF_ELABORATION);
103 for (auto m: sc_gem5::allModules) {
104 callbackModule(m);
105 m->sc_mod()->end_of_elaboration();
106 for (auto p: m->ports)
107 p->end_of_elaboration();
108 for (auto e: m->exports)
109 e->end_of_elaboration();
110 }
111 callbackModule(nullptr);
112 for (auto c: sc_gem5::allChannels)
113 c->sc_chan()->end_of_elaboration();
114 } catch (...) {
115 ::sc_gem5::scheduler.throwToScMain();
|
109 }
| 116 }
|
110 callbackModule(nullptr);
111 for (auto c: sc_gem5::allChannels)
112 c->sc_chan()->end_of_elaboration();
| 117
118 ::sc_gem5::scheduler.elaborationDone(true);
|
113}
114
115void
116Kernel::startup()
117{
118 if (scMainDone)
119 return;
120
121 schedule(t0Event, curTick());
122
123 if (stopAfterCallbacks)
124 return;
125
| 119}
120
121void
122Kernel::startup()
123{
124 if (scMainDone)
125 return;
126
127 schedule(t0Event, curTick());
128
129 if (stopAfterCallbacks)
130 return;
131
|
126 status(::sc_core::SC_START_OF_SIMULATION);
127 for (auto m: sc_gem5::allModules) {
128 m->sc_mod()->start_of_simulation();
129 for (auto p: m->ports)
130 p->start_of_simulation();
131 for (auto e: m->exports)
132 e->start_of_simulation();
| 132 try {
133 status(::sc_core::SC_START_OF_SIMULATION);
134 for (auto m: sc_gem5::allModules) {
135 m->sc_mod()->start_of_simulation();
136 for (auto p: m->ports)
137 p->start_of_simulation();
138 for (auto e: m->exports)
139 e->start_of_simulation();
140 }
141 callbackModule(nullptr);
142 for (auto c: sc_gem5::allChannels)
143 c->sc_chan()->start_of_simulation();
144 } catch (...) {
145 ::sc_gem5::scheduler.throwToScMain();
|
133 }
| 146 }
|
134 for (auto c: sc_gem5::allChannels)
135 c->sc_chan()->start_of_simulation();
| |
136
137 startComplete = true;
138
139 if (stopAfterCallbacks)
140 stopWork();
141
142 kernel->status(::sc_core::SC_RUNNING);
143}
144
145void
146Kernel::stop()
147{
148 if (status() < ::sc_core::SC_RUNNING)
149 stopAfterCallbacks = true;
150 else
151 stopWork();
152}
153
154void
155Kernel::stopWork()
156{
157 status(::sc_core::SC_END_OF_SIMULATION);
| 147
148 startComplete = true;
149
150 if (stopAfterCallbacks)
151 stopWork();
152
153 kernel->status(::sc_core::SC_RUNNING);
154}
155
156void
157Kernel::stop()
158{
159 if (status() < ::sc_core::SC_RUNNING)
160 stopAfterCallbacks = true;
161 else
162 stopWork();
163}
164
165void
166Kernel::stopWork()
167{
168 status(::sc_core::SC_END_OF_SIMULATION);
|
158 for (auto m: sc_gem5::allModules) {
159 m->sc_mod()->end_of_simulation();
160 for (auto p: m->ports)
161 p->end_of_simulation();
162 for (auto e: m->exports)
163 e->end_of_simulation();
| 169 try {
170 for (auto m: sc_gem5::allModules) {
171 m->sc_mod()->end_of_simulation();
172 for (auto p: m->ports)
173 p->end_of_simulation();
174 for (auto e: m->exports)
175 e->end_of_simulation();
176 }
177 callbackModule(nullptr);
178 for (auto c: sc_gem5::allChannels)
179 c->sc_chan()->end_of_simulation();
180 } catch (...) {
181 ::sc_gem5::scheduler.throwToScMain();
|
164 }
| 182 }
|
165 for (auto c: sc_gem5::allChannels)
166 c->sc_chan()->end_of_simulation();
| |
167
168 endComplete = true;
169
170 status(::sc_core::SC_STOPPED);
171}
172
173void
174Kernel::t0Handler()
175{
176 if (stopAfterCallbacks) {
177 scheduler.clear();
178 ::sc_gem5::scheduler.initPhase();
179 scheduler.scheduleStop(false);
180 } else {
181 ::sc_gem5::scheduler.initPhase();
182 status(::sc_core::SC_RUNNING);
183 }
184}
185
186Kernel *kernel;
187
188} // namespace sc_gem5
189
190sc_gem5::Kernel *
191SystemC_KernelParams::create()
192{
193 panic_if(sc_gem5::kernel,
194 "Only one systemc kernel object may be defined.\n");
195 sc_gem5::kernel = new sc_gem5::Kernel(this);
196 return sc_gem5::kernel;
197}
| 183
184 endComplete = true;
185
186 status(::sc_core::SC_STOPPED);
187}
188
189void
190Kernel::t0Handler()
191{
192 if (stopAfterCallbacks) {
193 scheduler.clear();
194 ::sc_gem5::scheduler.initPhase();
195 scheduler.scheduleStop(false);
196 } else {
197 ::sc_gem5::scheduler.initPhase();
198 status(::sc_core::SC_RUNNING);
199 }
200}
201
202Kernel *kernel;
203
204} // namespace sc_gem5
205
206sc_gem5::Kernel *
207SystemC_KernelParams::create()
208{
209 panic_if(sc_gem5::kernel,
210 "Only one systemc kernel object may be defined.\n");
211 sc_gem5::kernel = new sc_gem5::Kernel(this);
212 return sc_gem5::kernel;
213}
|