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/scheduler.hh"
37
38namespace sc_gem5
39{
40
41namespace
42{
43
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
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{
72 if (scMainDone)
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
87void
88Kernel::regStats()
89{
90 if (scMainDone || stopAfterCallbacks)
91 return;
92
93 try {
94 for (auto p: allPorts)
95 p->finalize();
| 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/scheduler.hh"
37
38namespace sc_gem5
39{
40
41namespace
42{
43
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
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{
72 if (scMainDone)
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
87void
88Kernel::regStats()
89{
90 if (scMainDone || stopAfterCallbacks)
91 return;
92
93 try {
94 for (auto p: allPorts)
95 p->finalize();
|
96
97 status(::sc_core::SC_END_OF_ELABORATION);
98 for (auto p: allPorts)
99 p->sc_port_base()->end_of_elaboration();
100 for (auto m: sc_gem5::allModules)
101 m->endOfElaboration();
102 for (auto c: sc_gem5::allChannels)
103 c->sc_chan()->end_of_elaboration();
104 } catch (...) {
105 ::sc_gem5::scheduler.throwToScMain();
106 }
107
108 ::sc_gem5::scheduler.elaborationDone(true);
109}
110
111void
112Kernel::startup()
113{
114 if (scMainDone)
115 return;
116
117 schedule(t0Event, curTick());
118
119 if (stopAfterCallbacks)
120 return;
121
122 try {
123 status(::sc_core::SC_START_OF_SIMULATION);
124 for (auto p: allPorts)
125 p->sc_port_base()->start_of_simulation();
126 for (auto m: sc_gem5::allModules)
127 m->startOfSimulation();
128 for (auto c: sc_gem5::allChannels)
129 c->sc_chan()->start_of_simulation();
130 } catch (...) {
131 ::sc_gem5::scheduler.throwToScMain();
132 }
133
134 startComplete = true;
135
136 if (stopAfterCallbacks)
137 stopWork();
138
139 kernel->status(::sc_core::SC_RUNNING);
140}
141
142void
143Kernel::stop()
144{
145 if (status() < ::sc_core::SC_RUNNING)
146 stopAfterCallbacks = true;
147 else
148 stopWork();
149}
150
151void
152Kernel::stopWork()
153{
154 status(::sc_core::SC_END_OF_SIMULATION);
155 try {
156 for (auto p: allPorts)
157 p->sc_port_base()->end_of_simulation();
158 for (auto m: sc_gem5::allModules)
159 m->endOfSimulation();
160 for (auto c: sc_gem5::allChannels)
161 c->sc_chan()->end_of_simulation();
162 } catch (...) {
163 ::sc_gem5::scheduler.throwToScMain();
164 }
165
166 endComplete = true;
167
168 status(::sc_core::SC_STOPPED);
169}
170
171void
172Kernel::t0Handler()
173{
174 if (stopAfterCallbacks) {
175 scheduler.clear();
176 ::sc_gem5::scheduler.initPhase();
177 scheduler.scheduleStop(false);
178 } else {
179 ::sc_gem5::scheduler.initPhase();
180 status(::sc_core::SC_RUNNING);
181 }
182}
183
184Kernel *kernel;
185
186} // namespace sc_gem5
187
188sc_gem5::Kernel *
189SystemC_KernelParams::create()
190{
191 panic_if(sc_gem5::kernel,
192 "Only one systemc kernel object may be defined.\n");
193 sc_gem5::kernel = new sc_gem5::Kernel(this);
194 return sc_gem5::kernel;
195}
| 98
99 status(::sc_core::SC_END_OF_ELABORATION);
100 for (auto p: allPorts)
101 p->sc_port_base()->end_of_elaboration();
102 for (auto m: sc_gem5::allModules)
103 m->endOfElaboration();
104 for (auto c: sc_gem5::allChannels)
105 c->sc_chan()->end_of_elaboration();
106 } catch (...) {
107 ::sc_gem5::scheduler.throwToScMain();
108 }
109
110 ::sc_gem5::scheduler.elaborationDone(true);
111}
112
113void
114Kernel::startup()
115{
116 if (scMainDone)
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}
|