1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
3 * Copyright (c) 2009 Advanced Micro Devices, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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89
90 Packet::Command cmd;
91
92 // 1 in 8 chance this will be an exclusive prefetch
93 if (random_mt.random(0, 0x7) != 0) {
94 cmd = MemCmd::ReadReq;
95
96 // if necessary, make the request an instruction fetch
97 if (m_tester_ptr->isInstReadableCpuPort(index)) {
97 if (m_tester_ptr->isInstOnlyCpuPort(index) ||
98 (m_tester_ptr->isInstDataCpuPort(index) &&
99 (random_mt.random(0, 0x1)))) {
100 flags.set(Request::INST_FETCH);
101 }
102 } else {
103 cmd = MemCmd::WriteReq;
104 flags.set(Request::PF_EXCLUSIVE);
105 }
106
107 // Prefetches are assumed to be 0 sized

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190 cmd = MemCmd::WriteReq;
191 // }
192
193 PacketPtr pkt = new Packet(req, cmd);
194 uint8_t *writeData = new uint8_t[1];
195 *writeData = m_value + m_store_count;
196 pkt->dataDynamic(writeData);
197
196 DPRINTF(RubyTest, "data 0x%x check 0x%x\n",
198 DPRINTF(RubyTest, "Seq write: index %d data 0x%x check 0x%x\n", index,
199 *(pkt->getConstPtr<uint8_t>()), *writeData);
200
201 // push the subblock onto the sender state. The sequencer will
202 // update the subblock on the return
203 pkt->senderState = new SenderState(writeAddr, req->getSize());
204
205 if (port->sendTimingReq(pkt)) {
206 DPRINTF(RubyTest, "initiating action - successful\n");
207 DPRINTF(RubyTest, "status before action update: %s\n",
208 (TesterStatus_to_string(m_status)).c_str());
209 m_status = TesterStatus_Action_Pending;
210 DPRINTF(RubyTest, "Check %s, State=Action_Pending\n", m_address);
211 } else {
212 // If the packet did not issue, must delete
213 // Note: No need to delete the data, the packet destructor
214 // will delete it
215 delete pkt->senderState;
216 delete pkt->req;
217 delete pkt;
218

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230 assert(m_status == TesterStatus_Ready);
231
232 int index = random_mt.random(0, m_num_readers - 1);
233 MasterPort* port = m_tester_ptr->getReadableCpuPort(index);
234
235 Request::Flags flags;
236
237 // If necessary, make the request an instruction fetch
235 if (m_tester_ptr->isInstReadableCpuPort(index)) {
238 if (m_tester_ptr->isInstOnlyCpuPort(index) ||
239 (m_tester_ptr->isInstDataCpuPort(index) &&
240 (random_mt.random(0, 0x1)))) {
241 flags.set(Request::INST_FETCH);
242 }
243
244 // Checks are sized depending on the number of bytes written
245 Request *req = new Request(m_address, CHECK_SIZE, flags,
246 m_tester_ptr->masterId(), curTick(), m_pc);
247
248 req->setThreadContext(index, 0);
249 PacketPtr pkt = new Packet(req, MemCmd::ReadReq);
250 uint8_t *dataArray = new uint8_t[CHECK_SIZE];
251 pkt->dataDynamic(dataArray);
252
253 DPRINTF(RubyTest, "Seq read: index %d\n", index);
254
255 // push the subblock onto the sender state. The sequencer will
256 // update the subblock on the return
257 pkt->senderState = new SenderState(m_address, req->getSize());
258
259 if (port->sendTimingReq(pkt)) {
260 DPRINTF(RubyTest, "initiating check - successful\n");
261 DPRINTF(RubyTest, "status before check update: %s\n",
262 TesterStatus_to_string(m_status).c_str());
263 m_status = TesterStatus_Check_Pending;
264 DPRINTF(RubyTest, "Check %s, State=Check_Pending\n", m_address);
265 } else {
266 // If the packet did not issue, must delete
267 // Note: No need to delete the data, the packet destructor
268 // will delete it
269 delete pkt->senderState;
270 delete pkt->req;
271 delete pkt;
272

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294 if (m_status == TesterStatus_Action_Pending) {
295 DPRINTF(RubyTest, "Action callback write value: %d, currently %d\n",
296 (m_value + m_store_count), data->getByte(0));
297 // Perform store one byte at a time
298 data->setByte(0, (m_value + m_store_count));
299 m_store_count++;
300 if (m_store_count == CHECK_SIZE) {
301 m_status = TesterStatus_Ready;
302 DPRINTF(RubyTest, "Check %s, State=Ready\n", m_address);
303 } else {
304 m_status = TesterStatus_Idle;
305 DPRINTF(RubyTest, "Check %s, State=Idle store_count: %d\n",
306 m_address, m_store_count);
307 }
308 DPRINTF(RubyTest, "Action callback return data now %d\n",
309 data->getByte(0));
310 } else if (m_status == TesterStatus_Check_Pending) {
311 DPRINTF(RubyTest, "Check callback\n");
312 // Perform load/check
313 for (int byte_number=0; byte_number<CHECK_SIZE; byte_number++) {
314 if (uint8_t(m_value + byte_number) != data->getByte(byte_number)) {

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322 }
323 DPRINTF(RubyTest, "Action/check success\n");
324 debugPrint();
325
326 // successful check complete, increment complete
327 m_tester_ptr->incrementCheckCompletions();
328
329 m_status = TesterStatus_Idle;
330 DPRINTF(RubyTest, "Check %s, State=Idle\n", m_address);
331 pickValue();
332
333 } else {
334 panic("Unexpected TesterStatus: %s proc: %d data: %s m_status: %s "
335 "time: %d\n", *this, proc, data, m_status, curTime);
336 }
337
338 DPRINTF(RubyTest, "proc: %d, Address: 0x%x\n", proc,
339 makeLineAddress(m_address));
340 DPRINTF(RubyTest, "Callback done\n");
341 debugPrint();
342}
343
344void
345Check::changeAddress(Addr address)
346{
347 assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready);
348 m_status = TesterStatus_Idle;
349 m_address = address;
350 DPRINTF(RubyTest, "Check %s, State=Idle\n", m_address);
351 m_store_count = 0;
352}
353
354void
355Check::pickValue()
356{
357 assert(m_status == TesterStatus_Idle);
345 m_status = TesterStatus_Idle;
358 m_value = random_mt.random(0, 0xff); // One byte
359 m_store_count = 0;
360}
361
362void
363Check::pickInitiatingNode()
364{
365 assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready);
366 m_status = TesterStatus_Idle;
367 m_initiatingNode = (random_mt.random(0, m_num_writers - 1));
356 DPRINTF(RubyTest, "picked initiating node %d\n", m_initiatingNode);
368 DPRINTF(RubyTest, "Check %s, State=Idle, picked initiating node %d\n",
369 m_address, m_initiatingNode);
370 m_store_count = 0;
371}
372
373void
374Check::print(std::ostream& out) const
375{
376 out << "["
377 << m_address << ", value: "

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