SeriesRequestGenerator.cc revision 7553
15331Sgblack@eecs.umich.edu/* 25331Sgblack@eecs.umich.edu * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 35331Sgblack@eecs.umich.edu * Copyright (c) 2009-2010 Advanced Micro Devices, Inc. 45331Sgblack@eecs.umich.edu * All rights reserved. 55331Sgblack@eecs.umich.edu * 65331Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 75331Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 85331Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 95331Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 105331Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 115331Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 125331Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 135331Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 145331Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 155331Sgblack@eecs.umich.edu * this software without specific prior written permission. 165331Sgblack@eecs.umich.edu * 175331Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 185331Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 195331Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 205331Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 215331Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 225331Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 235331Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 245331Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 255331Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 265331Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 275331Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 285331Sgblack@eecs.umich.edu */ 295331Sgblack@eecs.umich.edu 304276Sgblack@eecs.umich.edu#include "cpu/directedtest/RubyDirectedTester.hh" 314276Sgblack@eecs.umich.edu#include "cpu/directedtest/DirectedGenerator.hh" 324276Sgblack@eecs.umich.edu#include "cpu/directedtest/SeriesRequestGenerator.hh" 334276Sgblack@eecs.umich.edu 344276Sgblack@eecs.umich.eduSeriesRequestGenerator::SeriesRequestGenerator(const Params *p) 354276Sgblack@eecs.umich.edu : DirectedGenerator(p) 364276Sgblack@eecs.umich.edu{ 374276Sgblack@eecs.umich.edu m_status = SeriesRequestGeneratorStatus_Thinking; 384276Sgblack@eecs.umich.edu m_active_node = 0; 394276Sgblack@eecs.umich.edu m_address = 0x0; 404276Sgblack@eecs.umich.edu m_addr_increment_size = p->addr_increment_size; 414276Sgblack@eecs.umich.edu m_issue_writes = p->issue_writes; 424276Sgblack@eecs.umich.edu} 434276Sgblack@eecs.umich.edu 444276Sgblack@eecs.umich.eduSeriesRequestGenerator::~SeriesRequestGenerator() 454276Sgblack@eecs.umich.edu{ 464276Sgblack@eecs.umich.edu} 474276Sgblack@eecs.umich.edu 484276Sgblack@eecs.umich.edubool 494276Sgblack@eecs.umich.eduSeriesRequestGenerator::initiate() 504276Sgblack@eecs.umich.edu{ 514276Sgblack@eecs.umich.edu DPRINTF(DirectedTest, "initiating request\n"); 524276Sgblack@eecs.umich.edu assert(m_status == SeriesRequestGeneratorStatus_Thinking); 534276Sgblack@eecs.umich.edu 544276Sgblack@eecs.umich.edu RubyDirectedTester::CpuPort* port = 554276Sgblack@eecs.umich.edu safe_cast<RubyDirectedTester::CpuPort*>(m_directed_tester-> 564276Sgblack@eecs.umich.edu getCpuPort(m_active_node)); 574276Sgblack@eecs.umich.edu 584276Sgblack@eecs.umich.edu Request::Flags flags; 594276Sgblack@eecs.umich.edu 604276Sgblack@eecs.umich.edu // For simplicity, requests are assumed to be 1 byte-sized 614276Sgblack@eecs.umich.edu Request *req = new Request(m_address, 1, flags); 624276Sgblack@eecs.umich.edu 634276Sgblack@eecs.umich.edu Packet::Command cmd; 644276Sgblack@eecs.umich.edu if (m_issue_writes) { 654276Sgblack@eecs.umich.edu cmd = MemCmd::WriteReq; 664276Sgblack@eecs.umich.edu } else { 674276Sgblack@eecs.umich.edu cmd = MemCmd::ReadReq; 684276Sgblack@eecs.umich.edu } 694276Sgblack@eecs.umich.edu PacketPtr pkt = new Packet(req, cmd, m_active_node); 704276Sgblack@eecs.umich.edu uint8_t* dummyData = new uint8_t; 714276Sgblack@eecs.umich.edu *dummyData = 0; 724276Sgblack@eecs.umich.edu pkt->dataDynamic(dummyData); 734276Sgblack@eecs.umich.edu 744276Sgblack@eecs.umich.edu if (port->sendTiming(pkt)) { 754276Sgblack@eecs.umich.edu DPRINTF(DirectedTest, "initiating request - successful\n"); 764276Sgblack@eecs.umich.edu m_status = SeriesRequestGeneratorStatus_Request_Pending; 774276Sgblack@eecs.umich.edu return true; 784276Sgblack@eecs.umich.edu } else { 794276Sgblack@eecs.umich.edu // If the packet did not issue, must delete 804276Sgblack@eecs.umich.edu // Note: No need to delete the data, the packet destructor 814276Sgblack@eecs.umich.edu // will delete it 824276Sgblack@eecs.umich.edu delete pkt->req; 834276Sgblack@eecs.umich.edu delete pkt; 844276Sgblack@eecs.umich.edu 854276Sgblack@eecs.umich.edu DPRINTF(DirectedTest, "failed to initiate request - sequencer not ready\n"); 864276Sgblack@eecs.umich.edu return false; 874276Sgblack@eecs.umich.edu } 884276Sgblack@eecs.umich.edu} 894711Sgblack@eecs.umich.edu 904276Sgblack@eecs.umich.eduvoid 914276Sgblack@eecs.umich.eduSeriesRequestGenerator::performCallback(uint proc, Addr address) 925238Sgblack@eecs.umich.edu{ 935238Sgblack@eecs.umich.edu assert(m_active_node == proc); 945238Sgblack@eecs.umich.edu assert(m_address == address); 955238Sgblack@eecs.umich.edu assert(m_status == SeriesRequestGeneratorStatus_Request_Pending); 965937Sgblack@eecs.umich.edu 975902Sgblack@eecs.umich.edu m_status = SeriesRequestGeneratorStatus_Thinking; 985238Sgblack@eecs.umich.edu m_active_node++; 995238Sgblack@eecs.umich.edu if (m_active_node == m_num_cpus) { 1005238Sgblack@eecs.umich.edu // 1015238Sgblack@eecs.umich.edu // Cycle of requests completed, increment cycle completions and restart 1025238Sgblack@eecs.umich.edu // at cpu zero 1035238Sgblack@eecs.umich.edu // 1045238Sgblack@eecs.umich.edu m_directed_tester->incrementCycleCompletions(); 1055238Sgblack@eecs.umich.edu m_address += m_addr_increment_size; 1065238Sgblack@eecs.umich.edu m_active_node = 0; 1075238Sgblack@eecs.umich.edu } 1085238Sgblack@eecs.umich.edu} 1095238Sgblack@eecs.umich.edu 1105238Sgblack@eecs.umich.eduSeriesRequestGenerator * 1115238Sgblack@eecs.umich.eduSeriesRequestGeneratorParams::create() 1125238Sgblack@eecs.umich.edu{ 1135238Sgblack@eecs.umich.edu return new SeriesRequestGenerator(this); 1145238Sgblack@eecs.umich.edu} 1155238Sgblack@eecs.umich.edu