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_PROCESS_HH__
31#define __SYSTEMC_CORE_PROCESS_HH__
32
33#include <functional>
34#include <memory>
35#include <vector>
36
37#include "base/fiber.hh"
38#include "systemc/core/list.hh"
39#include "systemc/core/object.hh"
40#include "systemc/core/sched_event.hh"
41#include "systemc/core/sensitivity.hh"
42#include "systemc/ext/core/sc_event.hh"
43#include "systemc/ext/core/sc_module.hh"
44#include "systemc/ext/core/sc_process_handle.hh"
45
46namespace sc_core
47{
48
49class sc_join;
50
51} // namespace sc_core
52
53namespace sc_gem5
54{
55
56class ScHalt
57{};
58
59class Process : public ::sc_core::sc_process_b, public ListNode
60{
61 public:
62 virtual ::sc_core::sc_curr_proc_kind procKind() const = 0;
63 bool needsStart() const { return _needsStart; }
64 void needsStart(bool ns) { _needsStart = ns; }
65 bool dynamic() const { return _dynamic; }
66 bool isUnwinding() const { return _isUnwinding; }
67 void isUnwinding(bool v) { _isUnwinding = v; }
68 bool terminated() const { return _terminated; }
69
70 void forEachKid(const std::function<void(Process *)> &work);
71
72 bool suspended() const { return _suspended; }
73 bool disabled() const { return _disabled; }
74
75 void suspend(bool inc_kids);
76 void resume(bool inc_kids);
77 void disable(bool inc_kids);
78 void enable(bool inc_kids);
79
80 void kill(bool inc_kids);
81 void reset(bool inc_kids);
82 virtual void throw_it(ExceptionWrapperBase &exc, bool inc_kids);
83
84 void injectException(ExceptionWrapperBase &exc);
85 ExceptionWrapperBase *excWrapper;
86
87 void syncResetOn(bool inc_kids);
88 void syncResetOff(bool inc_kids);
89
| 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_PROCESS_HH__
31#define __SYSTEMC_CORE_PROCESS_HH__
32
33#include <functional>
34#include <memory>
35#include <vector>
36
37#include "base/fiber.hh"
38#include "systemc/core/list.hh"
39#include "systemc/core/object.hh"
40#include "systemc/core/sched_event.hh"
41#include "systemc/core/sensitivity.hh"
42#include "systemc/ext/core/sc_event.hh"
43#include "systemc/ext/core/sc_module.hh"
44#include "systemc/ext/core/sc_process_handle.hh"
45
46namespace sc_core
47{
48
49class sc_join;
50
51} // namespace sc_core
52
53namespace sc_gem5
54{
55
56class ScHalt
57{};
58
59class Process : public ::sc_core::sc_process_b, public ListNode
60{
61 public:
62 virtual ::sc_core::sc_curr_proc_kind procKind() const = 0;
63 bool needsStart() const { return _needsStart; }
64 void needsStart(bool ns) { _needsStart = ns; }
65 bool dynamic() const { return _dynamic; }
66 bool isUnwinding() const { return _isUnwinding; }
67 void isUnwinding(bool v) { _isUnwinding = v; }
68 bool terminated() const { return _terminated; }
69
70 void forEachKid(const std::function<void(Process *)> &work);
71
72 bool suspended() const { return _suspended; }
73 bool disabled() const { return _disabled; }
74
75 void suspend(bool inc_kids);
76 void resume(bool inc_kids);
77 void disable(bool inc_kids);
78 void enable(bool inc_kids);
79
80 void kill(bool inc_kids);
81 void reset(bool inc_kids);
82 virtual void throw_it(ExceptionWrapperBase &exc, bool inc_kids);
83
84 void injectException(ExceptionWrapperBase &exc);
85 ExceptionWrapperBase *excWrapper;
86
87 void syncResetOn(bool inc_kids);
88 void syncResetOff(bool inc_kids);
89
|
| 90 void signalReset(bool set, bool sync);
91
|
90 void incref() { refCount++; }
91 void decref() { refCount--; }
92
93 const ::sc_core::sc_event &resetEvent() { return _resetEvent; }
94 const ::sc_core::sc_event &terminatedEvent() { return _terminatedEvent; }
95
96 void setStackSize(size_t size) { stackSize = size; }
97
98 void run();
99
100 void addStatic(StaticSensitivity *);
101 void setDynamic(DynamicSensitivity *);
102 void clearDynamic() { setDynamic(nullptr); }
| 92 void incref() { refCount++; }
93 void decref() { refCount--; }
94
95 const ::sc_core::sc_event &resetEvent() { return _resetEvent; }
96 const ::sc_core::sc_event &terminatedEvent() { return _terminatedEvent; }
97
98 void setStackSize(size_t size) { stackSize = size; }
99
100 void run();
101
102 void addStatic(StaticSensitivity *);
103 void setDynamic(DynamicSensitivity *);
104 void clearDynamic() { setDynamic(nullptr); }
|
| 105 void addReset(ResetSensitivity *);
|
103
104 ScEvent timeoutEvent;
105 void setTimeout(::sc_core::sc_time t);
106 void cancelTimeout();
107
108 void satisfySensitivity(Sensitivity *);
109
110 void ready();
111
112 virtual Fiber *fiber() { return Fiber::primaryFiber(); }
113
114 static Process *newest() { return _newest; }
115
116 void lastReport(::sc_core::sc_report *report);
117 ::sc_core::sc_report *lastReport() const;
118
119 bool hasStaticSensitivities() { return !staticSensitivities.empty(); }
120 bool internal() { return _internal; }
121 bool timedOut() { return _timedOut; }
| 106
107 ScEvent timeoutEvent;
108 void setTimeout(::sc_core::sc_time t);
109 void cancelTimeout();
110
111 void satisfySensitivity(Sensitivity *);
112
113 void ready();
114
115 virtual Fiber *fiber() { return Fiber::primaryFiber(); }
116
117 static Process *newest() { return _newest; }
118
119 void lastReport(::sc_core::sc_report *report);
120 ::sc_core::sc_report *lastReport() const;
121
122 bool hasStaticSensitivities() { return !staticSensitivities.empty(); }
123 bool internal() { return _internal; }
124 bool timedOut() { return _timedOut; }
|
122 bool syncReset() { return _syncReset; }
| 125 bool inReset() { return _syncReset || syncResetCount || asyncResetCount; }
|
123
124 bool dontInitialize() { return _dontInitialize; }
125 void dontInitialize(bool di) { _dontInitialize = di; }
126
127 void joinWait(::sc_core::sc_join *join) { joinWaiters.push_back(join); }
128
| 126
127 bool dontInitialize() { return _dontInitialize; }
128 void dontInitialize(bool di) { _dontInitialize = di; }
129
130 void joinWait(::sc_core::sc_join *join) { joinWaiters.push_back(join); }
131
|
| 132 void waitCount(int count) { _waitCount = count; }
133
|
129 protected:
130 void timeout();
131
132 Process(const char *name, ProcessFuncWrapper *func, bool internal=false);
133
134 static Process *_newest;
135
136 virtual ~Process()
137 {
138 popListNode();
139 delete func;
140 for (auto s: staticSensitivities) {
141 s->clear();
142 delete s;
143 }
144 clearDynamic();
145 }
146
147 ::sc_core::sc_event _resetEvent;
148 ::sc_core::sc_event _terminatedEvent;
149
150 ProcessFuncWrapper *func;
151 sc_core::sc_curr_proc_kind _procKind;
152
153 bool _internal;
154
155 // Needed to support the deprecated "timed_out" function.
156 bool _timedOut;
157
158 bool _dontInitialize;
159
160 bool _needsStart;
161 bool _dynamic;
162 bool _isUnwinding;
163 bool _terminated;
164
165 void terminate();
166
167 bool _suspended;
168 bool _suspendedReady;
169 bool _disabled;
170
171 bool _syncReset;
172
| 134 protected:
135 void timeout();
136
137 Process(const char *name, ProcessFuncWrapper *func, bool internal=false);
138
139 static Process *_newest;
140
141 virtual ~Process()
142 {
143 popListNode();
144 delete func;
145 for (auto s: staticSensitivities) {
146 s->clear();
147 delete s;
148 }
149 clearDynamic();
150 }
151
152 ::sc_core::sc_event _resetEvent;
153 ::sc_core::sc_event _terminatedEvent;
154
155 ProcessFuncWrapper *func;
156 sc_core::sc_curr_proc_kind _procKind;
157
158 bool _internal;
159
160 // Needed to support the deprecated "timed_out" function.
161 bool _timedOut;
162
163 bool _dontInitialize;
164
165 bool _needsStart;
166 bool _dynamic;
167 bool _isUnwinding;
168 bool _terminated;
169
170 void terminate();
171
172 bool _suspended;
173 bool _suspendedReady;
174 bool _disabled;
175
176 bool _syncReset;
177
|
| 178 int syncResetCount;
179 int asyncResetCount;
180
181 int _waitCount;
182
|
173 int refCount;
174
175 size_t stackSize;
176
177 StaticSensitivities staticSensitivities;
178 DynamicSensitivity *dynamicSensitivity;
| 183 int refCount;
184
185 size_t stackSize;
186
187 StaticSensitivities staticSensitivities;
188 DynamicSensitivity *dynamicSensitivity;
|
| 189 ResetSensitivities resetSensitivities;
|
179
180 std::unique_ptr<::sc_core::sc_report> _lastReport;
181
182 std::vector<::sc_core::sc_join *> joinWaiters;
183};
184
185} // namespace sc_gem5
186
187#endif //__SYSTEMC_CORE_PROCESS_HH__
| 190
191 std::unique_ptr<::sc_core::sc_report> _lastReport;
192
193 std::vector<::sc_core::sc_join *> joinWaiters;
194};
195
196} // namespace sc_gem5
197
198#endif //__SYSTEMC_CORE_PROCESS_HH__
|