1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* $Id$
*
* Description:
*
*/
#ifndef BARRIERGENERATOR_H
#define BARRIERGENERATOR_H
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/common/Consumer.hh"
#include "mem/ruby/system/NodeID.hh"
#include "mem/ruby/common/Address.hh"
class Sequencer;
class SubBlock;
class SyntheticDriver;
enum BarrierGeneratorStatus {
BarrierGeneratorStatus_FIRST,
BarrierGeneratorStatus_Thinking = BarrierGeneratorStatus_FIRST,
BarrierGeneratorStatus_Test_Pending,
BarrierGeneratorStatus_Test_Waiting,
BarrierGeneratorStatus_Before_Swap,
BarrierGeneratorStatus_Swap_Pending,
BarrierGeneratorStatus_Holding,
BarrierGeneratorStatus_Release_Pending,
BarrierGeneratorStatus_Release_Waiting,
BarrierGeneratorStatus_StoreFlag_Waiting,
BarrierGeneratorStatus_StoreFlag_Pending,
BarrierGeneratorStatus_Done,
BarrierGeneratorStatus_SpinFlag_Ready,
BarrierGeneratorStatus_SpinFlag_Pending,
BarrierGeneratorStatus_LoadBarrierCounter_Pending,
BarrierGeneratorStatus_StoreBarrierCounter_Pending,
BarrierGeneratorStatus_StoreBarrierCounter_Waiting,
BarrierGeneratorStatus_NUM
};
// UNCOMMENT THIS FOR A SINGLE WORK QUEUE
// static int m_counter;
class BarrierGenerator : public Consumer {
public:
// Constructors
BarrierGenerator(NodeID node, SyntheticDriver& driver);
// Destructor
~BarrierGenerator();
// Public Methods
void wakeup();
void performCallback(NodeID proc, SubBlock& data);
void print(ostream& out) const;
private:
// Private Methods
int thinkTime() ;
int waitTime() const;
void initiateTest();
void initiateSwap();
void initiateRelease();
void initiateLoadCtr();
void initiateStoreCtr();
void initiateLoadFlag();
void initiateStoreFlag();
Sequencer* sequencer() const;
// Private copy constructor and assignment operator
BarrierGenerator(const BarrierGenerator& obj);
BarrierGenerator& operator=(const BarrierGenerator& obj);
// Data Members (m_ prefix)
SyntheticDriver& m_driver;
NodeID m_node;
BarrierGeneratorStatus m_status;
int proc_counter;
int m_counter;
bool m_local_sense;
bool m_barrier_done;
Time m_last_transition;
Address m_address;
int m_total_think;
int m_think_periods;
};
// Output operator declaration
ostream& operator<<(ostream& out, const BarrierGenerator& obj);
// ******************* Definitions *******************
// Output operator definition
extern inline
ostream& operator<<(ostream& out, const BarrierGenerator& obj)
{
obj.print(out);
out << flush;
return out;
}
#endif //REQUESTGENERATOR_H
|
