Check.cc revision 8832
16899SN/A/* 26899SN/A * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 36899SN/A * Copyright (c) 2009 Advanced Micro Devices, Inc. 46899SN/A * All rights reserved. 56899SN/A * 66899SN/A * Redistribution and use in source and binary forms, with or without 76899SN/A * modification, are permitted provided that the following conditions are 86899SN/A * met: redistributions of source code must retain the above copyright 96899SN/A * notice, this list of conditions and the following disclaimer; 106899SN/A * redistributions in binary form must reproduce the above copyright 116899SN/A * notice, this list of conditions and the following disclaimer in the 126899SN/A * documentation and/or other materials provided with the distribution; 136899SN/A * neither the name of the copyright holders nor the names of its 146899SN/A * contributors may be used to endorse or promote products derived from 156899SN/A * this software without specific prior written permission. 166899SN/A * 176899SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 186899SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 196899SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 206899SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 216899SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226899SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 236899SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 246899SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 256899SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 266899SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 276899SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 286899SN/A */ 296899SN/A 307632SBrad.Beckmann@amd.com#include "cpu/testers/rubytest/Check.hh" 318232Snate@binkert.org#include "debug/RubyTest.hh" 327053SN/A#include "mem/ruby/common/SubBlock.hh" 336899SN/A#include "mem/ruby/system/Sequencer.hh" 346899SN/A#include "mem/ruby/system/System.hh" 356899SN/A 367053SN/Atypedef RubyTester::SenderState SenderState; 377053SN/A 387053SN/ACheck::Check(const Address& address, const Address& pc, 397053SN/A int _num_cpu_sequencers, RubyTester* _tester) 407053SN/A : m_num_cpu_sequencers(_num_cpu_sequencers), m_tester_ptr(_tester) 416899SN/A{ 427053SN/A m_status = TesterStatus_Idle; 436899SN/A 447053SN/A pickValue(); 457053SN/A pickInitiatingNode(); 467053SN/A changeAddress(address); 477053SN/A m_pc = pc; 488164Snilay@cs.wisc.edu m_access_mode = RubyAccessMode(random() % RubyAccessMode_NUM); 497053SN/A m_store_count = 0; 506899SN/A} 516899SN/A 527053SN/Avoid 537053SN/ACheck::initiate() 546899SN/A{ 557053SN/A DPRINTF(RubyTest, "initiating\n"); 567053SN/A debugPrint(); 576899SN/A 587053SN/A // currently no protocols support prefetches 597053SN/A if (false && (random() & 0xf) == 0) { 607053SN/A initiatePrefetch(); // Prefetch from random processor 617053SN/A } 626899SN/A 638184Ssomayeh@cs.wisc.edu if (m_tester_ptr->getCheckFlush() && (random() & 0xff) == 0) { 648184Ssomayeh@cs.wisc.edu initiateFlush(); // issue a Flush request from random processor 658184Ssomayeh@cs.wisc.edu } 668184Ssomayeh@cs.wisc.edu 677053SN/A if (m_status == TesterStatus_Idle) { 687053SN/A initiateAction(); 697053SN/A } else if (m_status == TesterStatus_Ready) { 707053SN/A initiateCheck(); 717053SN/A } else { 727053SN/A // Pending - do nothing 737053SN/A DPRINTF(RubyTest, 747053SN/A "initiating action/check - failed: action/check is pending\n"); 757053SN/A } 766899SN/A} 776899SN/A 787053SN/Avoid 797053SN/ACheck::initiatePrefetch() 806899SN/A{ 817053SN/A DPRINTF(RubyTest, "initiating prefetch\n"); 826899SN/A 837053SN/A int index = random() % m_num_cpu_sequencers; 847053SN/A RubyTester::CpuPort* port = 857053SN/A safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 866899SN/A 877053SN/A Request::Flags flags; 887053SN/A flags.set(Request::PREFETCH); 896899SN/A 907053SN/A Packet::Command cmd; 916899SN/A 927053SN/A // 1 in 8 chance this will be an exclusive prefetch 937053SN/A if ((random() & 0x7) != 0) { 947053SN/A cmd = MemCmd::ReadReq; 957053SN/A 967053SN/A // 50% chance that the request will be an instruction fetch 977053SN/A if ((random() & 0x1) == 0) { 987053SN/A flags.set(Request::INST_FETCH); 997053SN/A } 1007053SN/A } else { 1017053SN/A cmd = MemCmd::WriteReq; 1027053SN/A flags.set(Request::PF_EXCLUSIVE); 1036899SN/A } 1046899SN/A 1057568SN/A // Prefetches are assumed to be 0 sized 1068832SAli.Saidi@ARM.com Request *req = new Request(m_address.getAddress(), 0, flags, 1078832SAli.Saidi@ARM.com m_tester_ptr->masterId(), curTick(), m_pc.getAddress()); 1088190SLisa.Hsu@amd.com req->setThreadContext(index, 0); 1097568SN/A 1107053SN/A PacketPtr pkt = new Packet(req, cmd, port->idx); 1116899SN/A 1127053SN/A // push the subblock onto the sender state. The sequencer will 1137053SN/A // update the subblock on the return 1147053SN/A pkt->senderState = 1157053SN/A new SenderState(m_address, req->getSize(), pkt->senderState); 1166899SN/A 1177053SN/A if (port->sendTiming(pkt)) { 1187053SN/A DPRINTF(RubyTest, "successfully initiated prefetch.\n"); 1197053SN/A } else { 1207053SN/A // If the packet did not issue, must delete 1217053SN/A SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 1227053SN/A pkt->senderState = senderState->saved; 1237053SN/A delete senderState; 1247053SN/A delete pkt->req; 1257053SN/A delete pkt; 1266899SN/A 1277053SN/A DPRINTF(RubyTest, 1287053SN/A "prefetch initiation failed because Port was busy.\n"); 1297053SN/A } 1306899SN/A} 1316899SN/A 1327053SN/Avoid 1338184Ssomayeh@cs.wisc.eduCheck::initiateFlush() 1348184Ssomayeh@cs.wisc.edu{ 1358184Ssomayeh@cs.wisc.edu 1368184Ssomayeh@cs.wisc.edu DPRINTF(RubyTest, "initiating Flush\n"); 1378184Ssomayeh@cs.wisc.edu 1388184Ssomayeh@cs.wisc.edu int index = random() % m_num_cpu_sequencers; 1398184Ssomayeh@cs.wisc.edu RubyTester::CpuPort* port = 1408184Ssomayeh@cs.wisc.edu safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 1418184Ssomayeh@cs.wisc.edu 1428184Ssomayeh@cs.wisc.edu Request::Flags flags; 1438184Ssomayeh@cs.wisc.edu 1448832SAli.Saidi@ARM.com Request *req = new Request(m_address.getAddress(), CHECK_SIZE, flags, 1458832SAli.Saidi@ARM.com m_tester_ptr->masterId(), curTick(), m_pc.getAddress()); 1468184Ssomayeh@cs.wisc.edu 1478184Ssomayeh@cs.wisc.edu Packet::Command cmd; 1488184Ssomayeh@cs.wisc.edu 1498184Ssomayeh@cs.wisc.edu cmd = MemCmd::FlushReq; 1508184Ssomayeh@cs.wisc.edu 1518184Ssomayeh@cs.wisc.edu PacketPtr pkt = new Packet(req, cmd, port->idx); 1528184Ssomayeh@cs.wisc.edu 1538184Ssomayeh@cs.wisc.edu // push the subblock onto the sender state. The sequencer will 1548184Ssomayeh@cs.wisc.edu // update the subblock on the return 1558184Ssomayeh@cs.wisc.edu pkt->senderState = 1568184Ssomayeh@cs.wisc.edu new SenderState(m_address, req->getSize(), pkt->senderState); 1578184Ssomayeh@cs.wisc.edu 1588184Ssomayeh@cs.wisc.edu if (port->sendTiming(pkt)) { 1598184Ssomayeh@cs.wisc.edu DPRINTF(RubyTest, "initiating Flush - successful\n"); 1608184Ssomayeh@cs.wisc.edu } 1618184Ssomayeh@cs.wisc.edu} 1628184Ssomayeh@cs.wisc.edu 1638184Ssomayeh@cs.wisc.eduvoid 1647053SN/ACheck::initiateAction() 1656899SN/A{ 1667053SN/A DPRINTF(RubyTest, "initiating Action\n"); 1677053SN/A assert(m_status == TesterStatus_Idle); 1686899SN/A 1697053SN/A int index = random() % m_num_cpu_sequencers; 1707053SN/A RubyTester::CpuPort* port = 1717053SN/A safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 1726899SN/A 1737053SN/A Request::Flags flags; 1746899SN/A 1757053SN/A // Create the particular address for the next byte to be written 1767053SN/A Address writeAddr(m_address.getAddress() + m_store_count); 1776899SN/A 1787053SN/A // Stores are assumed to be 1 byte-sized 1798832SAli.Saidi@ARM.com Request *req = new Request(writeAddr.getAddress(), 1, flags, 1808832SAli.Saidi@ARM.com m_tester_ptr->masterId(), curTick(), 1817053SN/A m_pc.getAddress()); 1826899SN/A 1838190SLisa.Hsu@amd.com req->setThreadContext(index, 0); 1847053SN/A Packet::Command cmd; 1857053SN/A 1867053SN/A // 1 out of 8 chance, issue an atomic rather than a write 1877053SN/A // if ((random() & 0x7) == 0) { 1887053SN/A // cmd = MemCmd::SwapReq; 1897053SN/A // } else { 1906899SN/A cmd = MemCmd::WriteReq; 1917053SN/A // } 1926899SN/A 1937053SN/A PacketPtr pkt = new Packet(req, cmd, port->idx); 1947053SN/A uint8_t* writeData = new uint8_t; 1957053SN/A *writeData = m_value + m_store_count; 1967053SN/A pkt->dataDynamic(writeData); 1976899SN/A 1987053SN/A DPRINTF(RubyTest, "data 0x%x check 0x%x\n", 1997053SN/A *(pkt->getPtr<uint8_t>()), *writeData); 2006899SN/A 2017053SN/A // push the subblock onto the sender state. The sequencer will 2027053SN/A // update the subblock on the return 2037053SN/A pkt->senderState = 2047053SN/A new SenderState(writeAddr, req->getSize(), pkt->senderState); 2056899SN/A 2067053SN/A if (port->sendTiming(pkt)) { 2077053SN/A DPRINTF(RubyTest, "initiating action - successful\n"); 2087053SN/A DPRINTF(RubyTest, "status before action update: %s\n", 2097053SN/A (TesterStatus_to_string(m_status)).c_str()); 2107053SN/A m_status = TesterStatus_Action_Pending; 2117053SN/A } else { 2127053SN/A // If the packet did not issue, must delete 2137053SN/A // Note: No need to delete the data, the packet destructor 2147053SN/A // will delete it 2157053SN/A SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 2167053SN/A pkt->senderState = senderState->saved; 2177053SN/A delete senderState; 2187053SN/A delete pkt->req; 2197053SN/A delete pkt; 2207053SN/A 2217053SN/A DPRINTF(RubyTest, "failed to initiate action - sequencer not ready\n"); 2227053SN/A } 2237053SN/A 2247053SN/A DPRINTF(RubyTest, "status after action update: %s\n", 2256899SN/A (TesterStatus_to_string(m_status)).c_str()); 2266899SN/A} 2276899SN/A 2287053SN/Avoid 2297053SN/ACheck::initiateCheck() 2306899SN/A{ 2317053SN/A DPRINTF(RubyTest, "Initiating Check\n"); 2327053SN/A assert(m_status == TesterStatus_Ready); 2336899SN/A 2347053SN/A int index = random() % m_num_cpu_sequencers; 2357053SN/A RubyTester::CpuPort* port = 2367053SN/A safe_cast<RubyTester::CpuPort*>(m_tester_ptr->getCpuPort(index)); 2376899SN/A 2387053SN/A Request::Flags flags; 2396899SN/A 2407053SN/A // 50% chance that the request will be an instruction fetch 2417053SN/A if ((random() & 0x1) == 0) { 2427053SN/A flags.set(Request::INST_FETCH); 2437053SN/A } 2446899SN/A 2457568SN/A // Checks are sized depending on the number of bytes written 2467568SN/A Request *req = new Request(m_address.getAddress(), CHECK_SIZE, flags, 2478832SAli.Saidi@ARM.com m_tester_ptr->masterId(), curTick(), m_pc.getAddress()); 2487568SN/A 2498190SLisa.Hsu@amd.com req->setThreadContext(index, 0); 2507053SN/A PacketPtr pkt = new Packet(req, MemCmd::ReadReq, port->idx); 2517053SN/A uint8_t* dataArray = new uint8_t[CHECK_SIZE]; 2527053SN/A pkt->dataDynamicArray(dataArray); 2536899SN/A 2547053SN/A // push the subblock onto the sender state. The sequencer will 2557053SN/A // update the subblock on the return 2567053SN/A pkt->senderState = 2577053SN/A new SenderState(m_address, req->getSize(), pkt->senderState); 2586899SN/A 2597053SN/A if (port->sendTiming(pkt)) { 2607053SN/A DPRINTF(RubyTest, "initiating check - successful\n"); 2617053SN/A DPRINTF(RubyTest, "status before check update: %s\n", 2627053SN/A TesterStatus_to_string(m_status).c_str()); 2637053SN/A m_status = TesterStatus_Check_Pending; 2647053SN/A } else { 2657053SN/A // If the packet did not issue, must delete 2667053SN/A // Note: No need to delete the data, the packet destructor 2677053SN/A // will delete it 2687053SN/A SenderState* senderState = safe_cast<SenderState*>(pkt->senderState); 2697053SN/A pkt->senderState = senderState->saved; 2707053SN/A delete senderState; 2717053SN/A delete pkt->req; 2727053SN/A delete pkt; 2736899SN/A 2747053SN/A DPRINTF(RubyTest, "failed to initiate check - cpu port not ready\n"); 2757053SN/A } 2767053SN/A 2777053SN/A DPRINTF(RubyTest, "status after check update: %s\n", 2787053SN/A TesterStatus_to_string(m_status).c_str()); 2796899SN/A} 2806899SN/A 2817053SN/Avoid 2827053SN/ACheck::performCallback(NodeID proc, SubBlock* data) 2836899SN/A{ 2847053SN/A Address address = data->getAddress(); 2856899SN/A 2867053SN/A // This isn't exactly right since we now have multi-byte checks 2877053SN/A // assert(getAddress() == address); 2886899SN/A 2897053SN/A assert(getAddress().getLineAddress() == address.getLineAddress()); 2907053SN/A assert(data != NULL); 2917053SN/A 2927053SN/A DPRINTF(RubyTest, "RubyTester Callback\n"); 2936899SN/A debugPrint(); 2946899SN/A 2957053SN/A if (m_status == TesterStatus_Action_Pending) { 2967053SN/A DPRINTF(RubyTest, "Action callback write value: %d, currently %d\n", 2977053SN/A (m_value + m_store_count), data->getByte(0)); 2987053SN/A // Perform store one byte at a time 2997053SN/A data->setByte(0, (m_value + m_store_count)); 3007053SN/A m_store_count++; 3017053SN/A if (m_store_count == CHECK_SIZE) { 3027053SN/A m_status = TesterStatus_Ready; 3037053SN/A } else { 3047053SN/A m_status = TesterStatus_Idle; 3057053SN/A } 3067053SN/A DPRINTF(RubyTest, "Action callback return data now %d\n", 3077053SN/A data->getByte(0)); 3087053SN/A } else if (m_status == TesterStatus_Check_Pending) { 3097053SN/A DPRINTF(RubyTest, "Check callback\n"); 3107053SN/A // Perform load/check 3117053SN/A for (int byte_number=0; byte_number<CHECK_SIZE; byte_number++) { 3127053SN/A if (uint8(m_value + byte_number) != data->getByte(byte_number)) { 3137805Snilay@cs.wisc.edu panic("Action/check failure: proc: %d address: %s data: %s " 3147805Snilay@cs.wisc.edu "byte_number: %d m_value+byte_number: %d byte: %d %s" 3157805Snilay@cs.wisc.edu "Time: %d\n", 3167805Snilay@cs.wisc.edu proc, address, data, byte_number, 3177805Snilay@cs.wisc.edu (int)m_value + byte_number, 3187805Snilay@cs.wisc.edu (int)data->getByte(byte_number), *this, 3197805Snilay@cs.wisc.edu g_eventQueue_ptr->getTime()); 3207053SN/A } 3217053SN/A } 3227053SN/A DPRINTF(RubyTest, "Action/check success\n"); 3237053SN/A debugPrint(); 3246899SN/A 3257053SN/A // successful check complete, increment complete 3267053SN/A m_tester_ptr->incrementCheckCompletions(); 3276899SN/A 3287053SN/A m_status = TesterStatus_Idle; 3297053SN/A pickValue(); 3307053SN/A 3317053SN/A } else { 3327805Snilay@cs.wisc.edu panic("Unexpected TesterStatus: %s proc: %d data: %s m_status: %s " 3337805Snilay@cs.wisc.edu "time: %d\n", 3347805Snilay@cs.wisc.edu *this, proc, data, m_status, g_eventQueue_ptr->getTime()); 3357053SN/A } 3367053SN/A 3377053SN/A DPRINTF(RubyTest, "proc: %d, Address: 0x%x\n", proc, 3387053SN/A getAddress().getLineAddress()); 3397053SN/A DPRINTF(RubyTest, "Callback done\n"); 3407053SN/A debugPrint(); 3416899SN/A} 3426899SN/A 3437053SN/Avoid 3447053SN/ACheck::changeAddress(const Address& address) 3456899SN/A{ 3467053SN/A assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready); 3477053SN/A m_status = TesterStatus_Idle; 3487053SN/A m_address = address; 3497053SN/A m_store_count = 0; 3506899SN/A} 3516899SN/A 3527053SN/Avoid 3537053SN/ACheck::pickValue() 3546899SN/A{ 3557053SN/A assert(m_status == TesterStatus_Idle); 3567053SN/A m_status = TesterStatus_Idle; 3577053SN/A m_value = random() & 0xff; // One byte 3587053SN/A m_store_count = 0; 3596899SN/A} 3606899SN/A 3617053SN/Avoid 3627053SN/ACheck::pickInitiatingNode() 3636899SN/A{ 3647053SN/A assert(m_status == TesterStatus_Idle || m_status == TesterStatus_Ready); 3657053SN/A m_status = TesterStatus_Idle; 3667053SN/A m_initiatingNode = (random() % m_num_cpu_sequencers); 3677053SN/A DPRINTF(RubyTest, "picked initiating node %d\n", m_initiatingNode); 3687053SN/A m_store_count = 0; 3696899SN/A} 3706899SN/A 3717053SN/Avoid 3727055SN/ACheck::print(std::ostream& out) const 3736899SN/A{ 3747053SN/A out << "[" 3757053SN/A << m_address << ", value: " 3767053SN/A << (int)m_value << ", status: " 3777053SN/A << m_status << ", initiating node: " 3787053SN/A << m_initiatingNode << ", store_count: " 3797053SN/A << m_store_count 3807055SN/A << "]" << std::flush; 3816899SN/A} 3826899SN/A 3837053SN/Avoid 3847053SN/ACheck::debugPrint() 3856899SN/A{ 3867053SN/A DPRINTF(RubyTest, 3877053SN/A "[%#x, value: %d, status: %s, initiating node: %d, store_count: %d]\n", 3887053SN/A m_address.getAddress(), (int)m_value, 3897053SN/A TesterStatus_to_string(m_status).c_str(), 3907053SN/A m_initiatingNode, m_store_count); 3916899SN/A} 392