port.cc revision 9031
12405SN/A/* 28922Swilliam.wang@arm.com * Copyright (c) 2012 ARM Limited 38922Swilliam.wang@arm.com * All rights reserved 48922Swilliam.wang@arm.com * 58922Swilliam.wang@arm.com * The license below extends only to copyright in the software and shall 68922Swilliam.wang@arm.com * not be construed as granting a license to any other intellectual 78922Swilliam.wang@arm.com * property including but not limited to intellectual property relating 88922Swilliam.wang@arm.com * to a hardware implementation of the functionality of the software 98922Swilliam.wang@arm.com * licensed hereunder. You may use the software subject to the license 108922Swilliam.wang@arm.com * terms below provided that you ensure that this notice is replicated 118922Swilliam.wang@arm.com * unmodified and in its entirety in all distributions of the software, 128922Swilliam.wang@arm.com * modified or unmodified, in source code or in binary form. 138922Swilliam.wang@arm.com * 142405SN/A * Copyright (c) 2002-2005 The Regents of The University of Michigan 152405SN/A * All rights reserved. 162405SN/A * 172405SN/A * Redistribution and use in source and binary forms, with or without 182405SN/A * modification, are permitted provided that the following conditions are 192405SN/A * met: redistributions of source code must retain the above copyright 202405SN/A * notice, this list of conditions and the following disclaimer; 212405SN/A * redistributions in binary form must reproduce the above copyright 222405SN/A * notice, this list of conditions and the following disclaimer in the 232405SN/A * documentation and/or other materials provided with the distribution; 242405SN/A * neither the name of the copyright holders nor the names of its 252405SN/A * contributors may be used to endorse or promote products derived from 262405SN/A * this software without specific prior written permission. 272405SN/A * 282405SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 292405SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 302405SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 312405SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 322405SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 332405SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 342405SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 352405SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 362405SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 372405SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 382405SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 392665Ssaidi@eecs.umich.edu * 402665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 418922Swilliam.wang@arm.com * Andreas Hansson 428922Swilliam.wang@arm.com * William Wang 432405SN/A */ 442405SN/A 452405SN/A/** 462982Sstever@eecs.umich.edu * @file 472982Sstever@eecs.umich.edu * Port object definitions. 482405SN/A */ 492642Sstever@eecs.umich.edu#include "base/trace.hh" 504190Ssaidi@eecs.umich.edu#include "mem/mem_object.hh" 512405SN/A#include "mem/port.hh" 522405SN/A 539031Sandreas.hansson@arm.comPort::Port(const std::string &_name, MemObject& _owner, PortID _id) 548965Sandreas.hansson@arm.com : portName(_name), id(_id), peer(NULL), owner(_owner) 555476Snate@binkert.org{ 565476Snate@binkert.org} 575476Snate@binkert.org 585476Snate@binkert.orgPort::~Port() 595283Sgblack@eecs.umich.edu{ 605283Sgblack@eecs.umich.edu} 615283Sgblack@eecs.umich.edu 628922Swilliam.wang@arm.com/** 638922Swilliam.wang@arm.com * Master port 648922Swilliam.wang@arm.com */ 659031Sandreas.hansson@arm.comMasterPort::MasterPort(const std::string& name, MemObject* owner, PortID _id) 668965Sandreas.hansson@arm.com : Port(name, *owner, _id), _slavePort(NULL) 672642Sstever@eecs.umich.edu{ 688922Swilliam.wang@arm.com} 695476Snate@binkert.org 708922Swilliam.wang@arm.comMasterPort::~MasterPort() 718922Swilliam.wang@arm.com{ 728922Swilliam.wang@arm.com} 738922Swilliam.wang@arm.com 748922Swilliam.wang@arm.comSlavePort& 758922Swilliam.wang@arm.comMasterPort::getSlavePort() const 768922Swilliam.wang@arm.com{ 778922Swilliam.wang@arm.com if(_slavePort == NULL) 788922Swilliam.wang@arm.com panic("Cannot getSlavePort on master port %s that is not connected\n", 798922Swilliam.wang@arm.com name()); 808922Swilliam.wang@arm.com 818922Swilliam.wang@arm.com return *_slavePort; 822642Sstever@eecs.umich.edu} 832642Sstever@eecs.umich.edu 842642Sstever@eecs.umich.eduvoid 858922Swilliam.wang@arm.comMasterPort::bind(SlavePort& slave_port) 865605Snate@binkert.org{ 878922Swilliam.wang@arm.com // master port keeps track of the slave port 888922Swilliam.wang@arm.com _slavePort = &slave_port; 898922Swilliam.wang@arm.com peer = &slave_port; 908922Swilliam.wang@arm.com 918922Swilliam.wang@arm.com // slave port also keeps track of master port 928922Swilliam.wang@arm.com _slavePort->bind(*this); 935605Snate@binkert.org} 945605Snate@binkert.org 958922Swilliam.wang@arm.combool 968922Swilliam.wang@arm.comMasterPort::isConnected() const 978922Swilliam.wang@arm.com{ 988922Swilliam.wang@arm.com return _slavePort != NULL; 998922Swilliam.wang@arm.com} 1008922Swilliam.wang@arm.com 1018922Swilliam.wang@arm.comunsigned 1028922Swilliam.wang@arm.comMasterPort::peerBlockSize() const 1038922Swilliam.wang@arm.com{ 1048922Swilliam.wang@arm.com return _slavePort->deviceBlockSize(); 1058922Swilliam.wang@arm.com} 1068922Swilliam.wang@arm.com 1078948Sandreas.hansson@arm.comTick 1088948Sandreas.hansson@arm.comMasterPort::sendAtomic(PacketPtr pkt) 1098948Sandreas.hansson@arm.com{ 1108975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1118948Sandreas.hansson@arm.com return _slavePort->recvAtomic(pkt); 1128948Sandreas.hansson@arm.com} 1138948Sandreas.hansson@arm.com 1148948Sandreas.hansson@arm.comvoid 1158948Sandreas.hansson@arm.comMasterPort::sendFunctional(PacketPtr pkt) 1168948Sandreas.hansson@arm.com{ 1178975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1188948Sandreas.hansson@arm.com return _slavePort->recvFunctional(pkt); 1198948Sandreas.hansson@arm.com} 1208948Sandreas.hansson@arm.com 1218975Sandreas.hansson@arm.combool 1228975Sandreas.hansson@arm.comMasterPort::sendTimingReq(PacketPtr pkt) 1238975Sandreas.hansson@arm.com{ 1248975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1258975Sandreas.hansson@arm.com return _slavePort->recvTimingReq(pkt); 1268975Sandreas.hansson@arm.com} 1278975Sandreas.hansson@arm.com 1288975Sandreas.hansson@arm.combool 1298975Sandreas.hansson@arm.comMasterPort::sendTimingSnoopResp(PacketPtr pkt) 1308975Sandreas.hansson@arm.com{ 1318975Sandreas.hansson@arm.com assert(pkt->isResponse()); 1328975Sandreas.hansson@arm.com return _slavePort->recvTimingSnoopResp(pkt); 1338975Sandreas.hansson@arm.com} 1348975Sandreas.hansson@arm.com 1358948Sandreas.hansson@arm.comvoid 1368922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 1375314Sstever@gmail.com{ 1388832SAli.Saidi@ARM.com Request req(a, 1, 0, Request::funcMasterId); 1398949Sandreas.hansson@arm.com Packet pkt(&req, MemCmd::PrintReq); 1405314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 1415314Sstever@gmail.com pkt.senderState = &prs; 1425314Sstever@gmail.com 1435314Sstever@gmail.com sendFunctional(&pkt); 1445314Sstever@gmail.com} 1458922Swilliam.wang@arm.com 1468922Swilliam.wang@arm.com/** 1478922Swilliam.wang@arm.com * Slave port 1488922Swilliam.wang@arm.com */ 1499031Sandreas.hansson@arm.comSlavePort::SlavePort(const std::string& name, MemObject* owner, PortID id) 1508965Sandreas.hansson@arm.com : Port(name, *owner, id), _masterPort(NULL) 1518922Swilliam.wang@arm.com{ 1528922Swilliam.wang@arm.com} 1538922Swilliam.wang@arm.com 1548922Swilliam.wang@arm.comSlavePort::~SlavePort() 1558922Swilliam.wang@arm.com{ 1568922Swilliam.wang@arm.com} 1578922Swilliam.wang@arm.com 1588922Swilliam.wang@arm.comvoid 1598922Swilliam.wang@arm.comSlavePort::bind(MasterPort& master_port) 1608922Swilliam.wang@arm.com{ 1618922Swilliam.wang@arm.com _masterPort = &master_port; 1628922Swilliam.wang@arm.com peer = &master_port; 1638922Swilliam.wang@arm.com} 1648922Swilliam.wang@arm.com 1658922Swilliam.wang@arm.comMasterPort& 1668922Swilliam.wang@arm.comSlavePort::getMasterPort() const 1678922Swilliam.wang@arm.com{ 1688922Swilliam.wang@arm.com if (_masterPort == NULL) 1698922Swilliam.wang@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 1708922Swilliam.wang@arm.com name()); 1718922Swilliam.wang@arm.com 1728922Swilliam.wang@arm.com return *_masterPort; 1738922Swilliam.wang@arm.com} 1748922Swilliam.wang@arm.com 1758922Swilliam.wang@arm.comunsigned 1768922Swilliam.wang@arm.comSlavePort::peerBlockSize() const 1778922Swilliam.wang@arm.com{ 1788922Swilliam.wang@arm.com return _masterPort->deviceBlockSize(); 1798922Swilliam.wang@arm.com} 1808922Swilliam.wang@arm.com 1818922Swilliam.wang@arm.combool 1828922Swilliam.wang@arm.comSlavePort::isConnected() const 1838922Swilliam.wang@arm.com{ 1848922Swilliam.wang@arm.com return _masterPort != NULL; 1858922Swilliam.wang@arm.com} 1868948Sandreas.hansson@arm.com 1878948Sandreas.hansson@arm.comTick 1888948Sandreas.hansson@arm.comSlavePort::sendAtomicSnoop(PacketPtr pkt) 1898948Sandreas.hansson@arm.com{ 1908975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1918948Sandreas.hansson@arm.com return _masterPort->recvAtomicSnoop(pkt); 1928948Sandreas.hansson@arm.com} 1938948Sandreas.hansson@arm.com 1948948Sandreas.hansson@arm.comvoid 1958948Sandreas.hansson@arm.comSlavePort::sendFunctionalSnoop(PacketPtr pkt) 1968948Sandreas.hansson@arm.com{ 1978975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1988948Sandreas.hansson@arm.com return _masterPort->recvFunctionalSnoop(pkt); 1998948Sandreas.hansson@arm.com} 2008975Sandreas.hansson@arm.com 2018975Sandreas.hansson@arm.combool 2028975Sandreas.hansson@arm.comSlavePort::sendTimingResp(PacketPtr pkt) 2038975Sandreas.hansson@arm.com{ 2048975Sandreas.hansson@arm.com assert(pkt->isResponse()); 2058975Sandreas.hansson@arm.com return _masterPort->recvTimingResp(pkt); 2068975Sandreas.hansson@arm.com} 2078975Sandreas.hansson@arm.com 2088975Sandreas.hansson@arm.comvoid 2098975Sandreas.hansson@arm.comSlavePort::sendTimingSnoopReq(PacketPtr pkt) 2108975Sandreas.hansson@arm.com{ 2118975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2128975Sandreas.hansson@arm.com _masterPort->recvTimingSnoopReq(pkt); 2138975Sandreas.hansson@arm.com} 214