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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* Copyright (c) 2008 Princeton University
* Copyright (c) 2016 Georgia Institute of Technology
* 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.
*
* Authors: Niket Agarwal
* Tushar Krishna
*/
#ifndef __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__
#define __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__
#include <iostream>
#include <vector>
#include "mem/ruby/common/Consumer.hh"
#include "mem/ruby/network/garnet2.0/CommonTypes.hh"
#include "mem/ruby/network/garnet2.0/CreditLink.hh"
#include "mem/ruby/network/garnet2.0/NetworkLink.hh"
#include "mem/ruby/network/garnet2.0/Router.hh"
#include "mem/ruby/network/garnet2.0/VirtualChannel.hh"
#include "mem/ruby/network/garnet2.0/flitBuffer.hh"
class InputUnit : public Consumer
{
public:
InputUnit(int id, PortDirection direction, Router *router);
~InputUnit();
void wakeup();
void print(std::ostream& out) const {};
inline PortDirection get_direction() { return m_direction; }
inline void
set_vc_idle(int vc, Cycles curTime)
{
m_vcs[vc]->set_idle(curTime);
}
inline void
set_vc_active(int vc, Cycles curTime)
{
m_vcs[vc]->set_active(curTime);
}
inline void
grant_outport(int vc, int outport)
{
m_vcs[vc]->set_outport(outport);
}
inline void
grant_outvc(int vc, int outvc)
{
m_vcs[vc]->set_outvc(outvc);
}
inline int
get_outport(int invc)
{
return m_vcs[invc]->get_outport();
}
inline int
get_outvc(int invc)
{
return m_vcs[invc]->get_outvc();
}
inline Cycles
get_enqueue_time(int invc)
{
return m_vcs[invc]->get_enqueue_time();
}
void increment_credit(int in_vc, bool free_signal, Cycles curTime);
inline flit*
peekTopFlit(int vc)
{
return m_vcs[vc]->peekTopFlit();
}
inline flit*
getTopFlit(int vc)
{
return m_vcs[vc]->getTopFlit();
}
inline bool
need_stage(int vc, flit_stage stage, Cycles time)
{
return m_vcs[vc]->need_stage(stage, time);
}
inline bool
isReady(int invc, Cycles curTime)
{
return m_vcs[invc]->isReady(curTime);
}
flitBuffer* getCreditQueue() { return creditQueue; }
inline void
set_in_link(NetworkLink *link)
{
m_in_link = link;
}
inline int get_inlink_id() { return m_in_link->get_id(); }
inline void
set_credit_link(CreditLink *credit_link)
{
m_credit_link = credit_link;
}
double get_buf_read_activity(unsigned int vnet) const
{ return m_num_buffer_reads[vnet]; }
double get_buf_write_activity(unsigned int vnet) const
{ return m_num_buffer_writes[vnet]; }
uint32_t functionalWrite(Packet *pkt);
void resetStats();
private:
int m_id;
PortDirection m_direction;
int m_num_vcs;
int m_vc_per_vnet;
Router *m_router;
NetworkLink *m_in_link;
CreditLink *m_credit_link;
flitBuffer *creditQueue;
// Input Virtual channels
std::vector<VirtualChannel *> m_vcs;
// Statistical variables
std::vector<double> m_num_buffer_writes;
std::vector<double> m_num_buffer_reads;
};
#endif // __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__
|
