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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* 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.
*/
/*
* $Id$
*
*/
// This Deterministic Generator generates GETS request for all nodes in the system
// then Invalidates them with a GETX. The GETS and GETX request are generated one
// at a time in round-robin fashion 0...1...2...etc.
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/tester/DetermInvGenerator.hh"
#include "mem/protocol/DetermInvGeneratorStatus.hh"
#include "mem/ruby/tester/DeterministicDriver.hh"
#include "mem/ruby/tester/Tester_Globals.hh"
//#include "DMAController.hh"
#include "mem/ruby/libruby.hh"
DetermInvGenerator::DetermInvGenerator(NodeID node, DeterministicDriver& driver) :
m_driver(driver)
{
m_status = DetermInvGeneratorStatus_Thinking;
m_last_transition = 0;
m_node = node;
m_address = Address(9999); // initiate to a NULL value
m_counter = 0;
// don't know exactly when this node needs to request so just guess randomly
m_driver.eventQueue->scheduleEvent(this, 1+(random() % 200));
}
DetermInvGenerator::~DetermInvGenerator()
{
}
void DetermInvGenerator::wakeup()
{
DEBUG_EXPR(TESTER_COMP, MedPrio, m_node);
DEBUG_EXPR(TESTER_COMP, MedPrio, m_status);
// determine if this node is next for the load round robin request
if (m_status == DetermInvGeneratorStatus_Thinking) {
// is a load ready and waiting and are my transactions insync with global transactions
if (m_driver.isLoadReady(m_node) && m_counter == m_driver.getStoresCompleted()) {
pickLoadAddress();
m_status = DetermInvGeneratorStatus_Load_Pending; // Load Pending
m_last_transition = m_driver.eventQueue->getTime();
initiateLoad(); // GETS
} else { // I'll check again later
m_driver.eventQueue->scheduleEvent(this, thinkTime());
}
} else if (m_status == DetermInvGeneratorStatus_Load_Complete) {
if (m_driver.isStoreReady(m_node, m_address)) { // do a store in this transaction or start the next one
if (m_driver.isLoadReady((0), m_address)) { // everyone is in S for this address i.e. back to node 0
m_status = DetermInvGeneratorStatus_Store_Pending;
m_last_transition = m_driver.eventQueue->getTime();
initiateStore(); // GETX
} else { // I'm next, I just have to wait for all loads to complete
m_driver.eventQueue->scheduleEvent(this, thinkTime());
}
} else { // I'm not next to store, go back to thinking
m_status = DetermInvGeneratorStatus_Thinking;
m_driver.eventQueue->scheduleEvent(this, thinkTime());
}
} else {
WARN_EXPR(m_status);
ERROR_MSG("Invalid status");
}
}
void DetermInvGenerator::performCallback(NodeID proc, Address address)
{
assert(proc == m_node);
assert(address == m_address);
DEBUG_EXPR(TESTER_COMP, LowPrio, proc);
DEBUG_EXPR(TESTER_COMP, LowPrio, m_status);
DEBUG_EXPR(TESTER_COMP, LowPrio, address);
if (m_status == DetermInvGeneratorStatus_Load_Pending) {
m_driver.recordLoadLatency(m_driver.eventQueue->getTime() - m_last_transition);
//NodeID firstByte = data.readByte(); // dummy read
m_driver.loadCompleted(m_node, address);
if (!m_driver.isStoreReady(m_node, m_address)) { // if we don't have to store, we are done for this transaction
m_counter++;
}
if (m_counter < m_driver.m_tester_length) {
m_status = DetermInvGeneratorStatus_Load_Complete;
m_last_transition = m_driver.eventQueue->getTime();
m_driver.eventQueue->scheduleEvent(this, waitTime());
} else {
m_driver.reportDone();
m_status = DetermInvGeneratorStatus_Done;
m_last_transition = m_driver.eventQueue->getTime();
}
} else if (m_status == DetermInvGeneratorStatus_Store_Pending) {
m_driver.recordStoreLatency(m_driver.eventQueue->getTime() - m_last_transition);
//data.writeByte(m_node);
m_driver.storeCompleted(m_node, address); // advance the store queue
m_counter++;
if (m_counter < m_driver.m_tester_length) {
m_status = DetermInvGeneratorStatus_Thinking;
m_last_transition = m_driver.eventQueue->getTime();
m_driver.eventQueue->scheduleEvent(this, waitTime());
} else {
m_driver.reportDone();
m_status = DetermInvGeneratorStatus_Done;
m_last_transition = m_driver.eventQueue->getTime();
}
} else {
WARN_EXPR(m_status);
ERROR_MSG("Invalid status");
}
DEBUG_EXPR(TESTER_COMP, LowPrio, proc);
DEBUG_EXPR(TESTER_COMP, LowPrio, m_status);
DEBUG_EXPR(TESTER_COMP, LowPrio, address);
}
int DetermInvGenerator::thinkTime() const
{
return m_driver.m_think_time;
}
int DetermInvGenerator::waitTime() const
{
return m_driver.m_wait_time;
}
int DetermInvGenerator::holdTime() const
{
assert(0);
}
void DetermInvGenerator::pickLoadAddress()
{
assert(m_status == DetermInvGeneratorStatus_Thinking);
m_address = m_driver.getNextLoadAddr(m_node);
}
void DetermInvGenerator::initiateLoad()
{
DEBUG_MSG(TESTER_COMP, MedPrio, "initiating Load");
// sequencer()->makeRequest(CacheMsg(m_address, m_address, CacheRequestType_LD, Address(1), AccessModeType_UserMode, 1, PrefetchBit_No, Address(0), 0 /* only 1 SMT thread */));
uint8_t * read_data = new uint8_t[64];
char name [] = "Sequencer_";
char port_name [13];
sprintf(port_name, "%s%d", name, m_node);
int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(m_address.getAddress(), read_data, 64, 0, RubyRequestType_LD, RubyAccessMode_Supervisor));
//delete [] read_data;
ASSERT(m_driver.requests.find(request_id) == m_driver.requests.end());
m_driver.requests.insert(make_pair(request_id, make_pair(m_node, m_address)));
}
void DetermInvGenerator::initiateStore()
{
DEBUG_MSG(TESTER_COMP, MedPrio, "initiating Store");
// sequencer()->makeRequest(CacheMsg(m_address, m_address, CacheRequestType_ST, Address(3), AccessModeType_UserMode, 1, PrefetchBit_No, Address(0), 0 /* only 1 SMT thread */));
uint8_t *write_data = new uint8_t[64];
for(int i=0; i < 64; i++) {
write_data[i] = m_node;
}
char name [] = "Sequencer_";
char port_name [13];
sprintf(port_name, "%s%d", name, m_node);
int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(m_address.getAddress(), write_data, 64, 0, RubyRequestType_ST, RubyAccessMode_Supervisor));
//delete [] write_data;
ASSERT(m_driver.requests.find(request_id) == m_driver.requests.end());
m_driver.requests.insert(make_pair(request_id, make_pair(m_node, m_address)));
}
void DetermInvGenerator::print(ostream& out) const
{
out << "[DetermInvGenerator]" << endl;
}
|
