Check.cc revision 8232
112854Sgabeblack@google.com/* 212854Sgabeblack@google.com * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 312854Sgabeblack@google.com * Copyright (c) 2009 Advanced Micro Devices, Inc. 412854Sgabeblack@google.com * All rights reserved. 512854Sgabeblack@google.com * 612854Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 712854Sgabeblack@google.com * modification, are permitted provided that the following conditions are 812854Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 912854Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 1012854Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1112854Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1212854Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1312854Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1412854Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1512854Sgabeblack@google.com * this software without specific prior written permission. 1612854Sgabeblack@google.com * 1712854Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1812854Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1912854Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2012854Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2112854Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2212854Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2312854Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2412854Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2512854Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2612854Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2712854Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2812854Sgabeblack@google.com */ 2912854Sgabeblack@google.com 3012854Sgabeblack@google.com#include "cpu/testers/rubytest/Check.hh" 3112854Sgabeblack@google.com#include "debug/RubyTest.hh" 3212854Sgabeblack@google.com#include "mem/ruby/common/SubBlock.hh" 3312854Sgabeblack@google.com#include "mem/ruby/system/Sequencer.hh" 3412854Sgabeblack@google.com#include "mem/ruby/system/System.hh" 3512854Sgabeblack@google.com 3612854Sgabeblack@google.comtypedef RubyTester::SenderState SenderState; 3712854Sgabeblack@google.com 3812854Sgabeblack@google.comCheck::Check(const Address& address, const Address& pc, 3912854Sgabeblack@google.com int _num_cpu_sequencers, RubyTester* _tester) 4012854Sgabeblack@google.com : m_num_cpu_sequencers(_num_cpu_sequencers), m_tester_ptr(_tester) 4112854Sgabeblack@google.com{ 4212854Sgabeblack@google.com m_status = TesterStatus_Idle; 4312854Sgabeblack@google.com 4412854Sgabeblack@google.com pickValue(); 4512854Sgabeblack@google.com pickInitiatingNode(); 4612854Sgabeblack@google.com changeAddress(address); 4712854Sgabeblack@google.com m_pc = pc; 4812854Sgabeblack@google.com m_access_mode = RubyAccessMode(random() % RubyAccessMode_NUM); 4912854Sgabeblack@google.com m_store_count = 0; 5012854Sgabeblack@google.com} 5112854Sgabeblack@google.com 5212854Sgabeblack@google.comvoid 5312854Sgabeblack@google.comCheck::initiate() 5412854Sgabeblack@google.com{ 5512854Sgabeblack@google.com DPRINTF(RubyTest, "initiating\n"); 5612854Sgabeblack@google.com debugPrint(); 5712854Sgabeblack@google.com 5813325Sgabeblack@google.com // currently no protocols support prefetches 5912854Sgabeblack@google.com if (false && (random() & 0xf) == 0) { 6012854Sgabeblack@google.com initiatePrefetch(); // Prefetch from random processor 6112854Sgabeblack@google.com } 6212854Sgabeblack@google.com 6312854Sgabeblack@google.com if (m_tester_ptr->getCheckFlush() && (random() & 0xff) == 0) { 6412854Sgabeblack@google.com initiateFlush(); // issue a Flush request from random processor 6512854Sgabeblack@google.com } 6612854Sgabeblack@google.com 6712854Sgabeblack@google.com if (m_status == TesterStatus_Idle) { 6812854Sgabeblack@google.com initiateAction(); 6912854Sgabeblack@google.com } else if (m_status == TesterStatus_Ready) { 7012854Sgabeblack@google.com initiateCheck(); 7112854Sgabeblack@google.com } else { 7212854Sgabeblack@google.com // Pending - do nothing 7312854Sgabeblack@google.com DPRINTF(RubyTest, 7412854Sgabeblack@google.com "initiating action/check - failed: action/check is pending\n"); 7512854Sgabeblack@google.com } 7612854Sgabeblack@google.com} 7712854Sgabeblack@google.com 7813325Sgabeblack@google.comvoid 7912854Sgabeblack@google.comCheck::initiatePrefetch() 8012854Sgabeblack@google.com{ 8112854Sgabeblack@google.com DPRINTF(RubyTest, "initiating prefetch\n"); 8212854Sgabeblack@google.com 8312854Sgabeblack@google.com int index = random() % m_num_cpu_sequencers; 8412854Sgabeblack@google.com RubyTester::CpuPort* port = 8512854Sgabeblack@google.com safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 8612854Sgabeblack@google.com 8712854Sgabeblack@google.com Request::Flags flags; 8812854Sgabeblack@google.com flags.set(Request::PREFETCH); 8912854Sgabeblack@google.com 9012854Sgabeblack@google.com Packet::Command cmd; 9112854Sgabeblack@google.com 9212854Sgabeblack@google.com // 1 in 8 chance this will be an exclusive prefetch 9312854Sgabeblack@google.com if ((random() & 0x7) != 0) { 9412854Sgabeblack@google.com cmd = MemCmd::ReadReq; 9512854Sgabeblack@google.com 9612854Sgabeblack@google.com // 50% chance that the request will be an instruction fetch 9712854Sgabeblack@google.com if ((random() & 0x1) == 0) { 9812854Sgabeblack@google.com flags.set(Request::INST_FETCH); 9912854Sgabeblack@google.com } 10012854Sgabeblack@google.com } else { 10112854Sgabeblack@google.com cmd = MemCmd::WriteReq; 10212854Sgabeblack@google.com flags.set(Request::PF_EXCLUSIVE); 10312854Sgabeblack@google.com } 10412854Sgabeblack@google.com 10513325Sgabeblack@google.com // Prefetches are assumed to be 0 sized 10612854Sgabeblack@google.com Request *req = new Request(m_address.getAddress(), 0, flags, curTick(), 10712854Sgabeblack@google.com m_pc.getAddress()); 10812854Sgabeblack@google.com req->setThreadContext(index, 0); 10912854Sgabeblack@google.com 11012854Sgabeblack@google.com PacketPtr pkt = new Packet(req, cmd, port->idx); 11112854Sgabeblack@google.com 11212854Sgabeblack@google.com // push the subblock onto the sender state. The sequencer will 11312854Sgabeblack@google.com // update the subblock on the return 11412854Sgabeblack@google.com pkt->senderState = 11512854Sgabeblack@google.com new SenderState(m_address, req->getSize(), pkt->senderState); 11612854Sgabeblack@google.com 11712854Sgabeblack@google.com if (port->sendTiming(pkt)) { 11812854Sgabeblack@google.com DPRINTF(RubyTest, "successfully initiated prefetch.\n"); 11912854Sgabeblack@google.com } else { 12012854Sgabeblack@google.com // If the packet did not issue, must delete 12112854Sgabeblack@google.com SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 12212854Sgabeblack@google.com pkt->senderState = senderState->saved; 12312854Sgabeblack@google.com delete senderState; 12412854Sgabeblack@google.com delete pkt->req; 12512854Sgabeblack@google.com delete pkt; 12612854Sgabeblack@google.com 12712854Sgabeblack@google.com DPRINTF(RubyTest, 12812854Sgabeblack@google.com "prefetch initiation failed because Port was busy.\n"); 12912854Sgabeblack@google.com } 13012854Sgabeblack@google.com} 13112854Sgabeblack@google.com 13212854Sgabeblack@google.comvoid 13312854Sgabeblack@google.comCheck::initiateFlush() 13412854Sgabeblack@google.com{ 13512854Sgabeblack@google.com 13612854Sgabeblack@google.com DPRINTF(RubyTest, "initiating Flush\n"); 13712854Sgabeblack@google.com 13812854Sgabeblack@google.com int index = random() % m_num_cpu_sequencers; 13912854Sgabeblack@google.com RubyTester::CpuPort* port = 14012854Sgabeblack@google.com safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 14112854Sgabeblack@google.com 14212854Sgabeblack@google.com Request::Flags flags; 14312854Sgabeblack@google.com 14412854Sgabeblack@google.com Request *req = new Request(m_address.getAddress(), CHECK_SIZE, flags, curTick(), 14512854Sgabeblack@google.com m_pc.getAddress()); 14612854Sgabeblack@google.com 14712854Sgabeblack@google.com Packet::Command cmd; 14812854Sgabeblack@google.com 14912854Sgabeblack@google.com cmd = MemCmd::FlushReq; 15012854Sgabeblack@google.com 15112854Sgabeblack@google.com PacketPtr pkt = new Packet(req, cmd, port->idx); 15212854Sgabeblack@google.com 15312854Sgabeblack@google.com // push the subblock onto the sender state. The sequencer will 15412854Sgabeblack@google.com // update the subblock on the return 15512854Sgabeblack@google.com pkt->senderState = 15612854Sgabeblack@google.com new SenderState(m_address, req->getSize(), pkt->senderState); 15712854Sgabeblack@google.com 15812854Sgabeblack@google.com if (port->sendTiming(pkt)) { 15912854Sgabeblack@google.com DPRINTF(RubyTest, "initiating Flush - successful\n"); 16012854Sgabeblack@google.com } 16112854Sgabeblack@google.com} 16212854Sgabeblack@google.com 16312854Sgabeblack@google.comvoid 16412854Sgabeblack@google.comCheck::initiateAction() 16513325Sgabeblack@google.com{ 16613325Sgabeblack@google.com DPRINTF(RubyTest, "initiating Action\n"); 16712854Sgabeblack@google.com assert(m_status == TesterStatus_Idle); 16812854Sgabeblack@google.com 16912854Sgabeblack@google.com int index = random() % m_num_cpu_sequencers; 17013325Sgabeblack@google.com RubyTester::CpuPort* port = 17112854Sgabeblack@google.com safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 17212854Sgabeblack@google.com 17312854Sgabeblack@google.com Request::Flags flags; 17412854Sgabeblack@google.com 17512854Sgabeblack@google.com // Create the particular address for the next byte to be written 17612854Sgabeblack@google.com Address writeAddr(m_address.getAddress() + m_store_count); 17712854Sgabeblack@google.com 17812854Sgabeblack@google.com // Stores are assumed to be 1 byte-sized 17912854Sgabeblack@google.com Request *req = new Request(writeAddr.getAddress(), 1, flags, curTick(), 18012854Sgabeblack@google.com m_pc.getAddress()); 18112854Sgabeblack@google.com 18212854Sgabeblack@google.com req->setThreadContext(index, 0); 18312854Sgabeblack@google.com Packet::Command cmd; 18412854Sgabeblack@google.com 18512854Sgabeblack@google.com // 1 out of 8 chance, issue an atomic rather than a write 18612854Sgabeblack@google.com // if ((random() & 0x7) == 0) { 18712854Sgabeblack@google.com // cmd = MemCmd::SwapReq; 18812854Sgabeblack@google.com // } else { 18912854Sgabeblack@google.com cmd = MemCmd::WriteReq; 19012854Sgabeblack@google.com // } 19112854Sgabeblack@google.com 19212854Sgabeblack@google.com PacketPtr pkt = new Packet(req, cmd, port->idx); 19312854Sgabeblack@google.com uint8_t* writeData = new uint8_t; 19412854Sgabeblack@google.com *writeData = m_value + m_store_count; 19512854Sgabeblack@google.com pkt->dataDynamic(writeData); 19612854Sgabeblack@google.com 19712854Sgabeblack@google.com DPRINTF(RubyTest, "data 0x%x check 0x%x\n", 19812854Sgabeblack@google.com *(pkt->getPtr<uint8_t>()), *writeData); 19912854Sgabeblack@google.com 20012854Sgabeblack@google.com // push the subblock onto the sender state. The sequencer will 20112854Sgabeblack@google.com // update the subblock on the return 20212854Sgabeblack@google.com pkt->senderState = 20312854Sgabeblack@google.com new SenderState(writeAddr, req->getSize(), pkt->senderState); 20412854Sgabeblack@google.com 20512854Sgabeblack@google.com if (port->sendTiming(pkt)) { 20612854Sgabeblack@google.com DPRINTF(RubyTest, "initiating action - successful\n"); 20713325Sgabeblack@google.com DPRINTF(RubyTest, "status before action update: %s\n", 20812854Sgabeblack@google.com (TesterStatus_to_string(m_status)).c_str()); 20912854Sgabeblack@google.com m_status = TesterStatus_Action_Pending; 21012854Sgabeblack@google.com } else { 21112854Sgabeblack@google.com // If the packet did not issue, must delete 21212854Sgabeblack@google.com // Note: No need to delete the data, the packet destructor 21312854Sgabeblack@google.com // will delete it 21412854Sgabeblack@google.com SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 21512854Sgabeblack@google.com pkt->senderState = senderState->saved; 21612854Sgabeblack@google.com delete senderState; 21712854Sgabeblack@google.com delete pkt->req; 21812854Sgabeblack@google.com delete pkt; 21912854Sgabeblack@google.com 22012854Sgabeblack@google.com DPRINTF(RubyTest, "failed to initiate action - sequencer not ready\n"); 22112854Sgabeblack@google.com } 22212854Sgabeblack@google.com 22312854Sgabeblack@google.com DPRINTF(RubyTest, "status after action update: %s\n", 22412854Sgabeblack@google.com (TesterStatus_to_string(m_status)).c_str()); 22512854Sgabeblack@google.com} 22612854Sgabeblack@google.com 22712854Sgabeblack@google.comvoid 22812854Sgabeblack@google.comCheck::initiateCheck() 22912854Sgabeblack@google.com{ 23012854Sgabeblack@google.com DPRINTF(RubyTest, "Initiating Check\n"); 23112854Sgabeblack@google.com assert(m_status == TesterStatus_Ready); 23212854Sgabeblack@google.com 233 int index = random() % m_num_cpu_sequencers; 234 RubyTester::CpuPort* port = 235 safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 236 237 Request::Flags flags; 238 239 // 50% chance that the request will be an instruction fetch 240 if ((random() & 0x1) == 0) { 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.getAddress(), CHECK_SIZE, flags, 246 curTick(), m_pc.getAddress()); 247 248 req->setThreadContext(index, 0); 249 PacketPtr pkt = new Packet(req, MemCmd::ReadReq, port->idx); 250 uint8_t* dataArray = new uint8_t[CHECK_SIZE]; 251 pkt->dataDynamicArray(dataArray); 252 253 // push the subblock onto the sender state. The sequencer will 254 // update the subblock on the return 255 pkt->senderState = 256 new SenderState(m_address, req->getSize(), pkt->senderState); 257 258 if (port->sendTiming(pkt)) { 259 DPRINTF(RubyTest, "initiating check - successful\n"); 260 DPRINTF(RubyTest, "status before check update: %s\n", 261 TesterStatus_to_string(m_status).c_str()); 262 m_status = TesterStatus_Check_Pending; 263 } else { 264 // If the packet did not issue, must delete 265 // Note: No need to delete the data, the packet destructor 266 // will delete it 267 SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 268 pkt->senderState = senderState->saved; 269 delete senderState; 270 delete pkt->req; 271 delete pkt; 272 273 DPRINTF(RubyTest, "failed to initiate check - cpu port not ready\n"); 274 } 275 276 DPRINTF(RubyTest, "status after check update: %s\n", 277 TesterStatus_to_string(m_status).c_str()); 278} 279 280void 281Check::performCallback(NodeID proc, SubBlock* data) 282{ 283 Address address = data->getAddress(); 284 285 // This isn't exactly right since we now have multi-byte checks 286 // assert(getAddress() == address); 287 288 assert(getAddress().getLineAddress() == address.getLineAddress()); 289 assert(data != NULL); 290 291 DPRINTF(RubyTest, "RubyTester Callback\n"); 292 debugPrint(); 293 294 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 } else { 303 m_status = TesterStatus_Idle; 304 } 305 DPRINTF(RubyTest, "Action callback return data now %d\n", 306 data->getByte(0)); 307 } else if (m_status == TesterStatus_Check_Pending) { 308 DPRINTF(RubyTest, "Check callback\n"); 309 // Perform load/check 310 for (int byte_number=0; byte_number<CHECK_SIZE; byte_number++) { 311 if (uint8(m_value + byte_number) != data->getByte(byte_number)) { 312 panic("Action/check failure: proc: %d address: %s data: %s " 313 "byte_number: %d m_value+byte_number: %d byte: %d %s" 314 "Time: %d\n", 315 proc, address, data, byte_number, 316 (int)m_value + byte_number, 317 (int)data->getByte(byte_number), *this, 318 g_eventQueue_ptr->getTime()); 319 } 320 } 321 DPRINTF(RubyTest, "Action/check success\n"); 322 debugPrint(); 323 324 // successful check complete, increment complete 325 m_tester_ptr->incrementCheckCompletions(); 326 327 m_status = TesterStatus_Idle; 328 pickValue(); 329 330 } else { 331 panic("Unexpected TesterStatus: %s proc: %d data: %s m_status: %s " 332 "time: %d\n", 333 *this, proc, data, m_status, g_eventQueue_ptr->getTime()); 334 } 335 336 DPRINTF(RubyTest, "proc: %d, Address: 0x%x\n", proc, 337 getAddress().getLineAddress()); 338 DPRINTF(RubyTest, "Callback done\n"); 339 debugPrint(); 340} 341 342void 343Check::changeAddress(const Address& address) 344{ 345 assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready); 346 m_status = TesterStatus_Idle; 347 m_address = address; 348 m_store_count = 0; 349} 350 351void 352Check::pickValue() 353{ 354 assert(m_status == TesterStatus_Idle); 355 m_status = TesterStatus_Idle; 356 m_value = random() & 0xff; // One byte 357 m_store_count = 0; 358} 359 360void 361Check::pickInitiatingNode() 362{ 363 assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready); 364 m_status = TesterStatus_Idle; 365 m_initiatingNode = (random() % m_num_cpu_sequencers); 366 DPRINTF(RubyTest, "picked initiating node %d\n", m_initiatingNode); 367 m_store_count = 0; 368} 369 370void 371Check::print(std::ostream& out) const 372{ 373 out << "[" 374 << m_address << ", value: " 375 << (int)m_value << ", status: " 376 << m_status << ", initiating node: " 377 << m_initiatingNode << ", store_count: " 378 << m_store_count 379 << "]" << std::flush; 380} 381 382void 383Check::debugPrint() 384{ 385 DPRINTF(RubyTest, 386 "[%#x, value: %d, status: %s, initiating node: %d, store_count: %d]\n", 387 m_address.getAddress(), (int)m_value, 388 TesterStatus_to_string(m_status).c_str(), 389 m_initiatingNode, m_store_count); 390} 391