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