port.cc revision 13769
12405SN/A/* 212342Snikos.nikoleris@arm.com * Copyright (c) 2012,2015,2017 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 */ 4911793Sbrandon.potter@amd.com#include "mem/port.hh" 5011793Sbrandon.potter@amd.com 512642Sstever@eecs.umich.edu#include "base/trace.hh" 524190Ssaidi@eecs.umich.edu#include "mem/mem_object.hh" 532405SN/A 5413769Sgabeblack@google.comPort::Port(const std::string &_name, PortID _id) 5513769Sgabeblack@google.com : portName(_name), id(_id) 565476Snate@binkert.org{ 575476Snate@binkert.org} 585476Snate@binkert.org 595476Snate@binkert.orgPort::~Port() 605283Sgblack@eecs.umich.edu{ 615283Sgblack@eecs.umich.edu} 625283Sgblack@eecs.umich.edu 6313769Sgabeblack@google.comBaseMasterPort::BaseMasterPort(const std::string &name, PortID _id) 6413769Sgabeblack@google.com : Port(name, _id), _baseSlavePort(NULL) 659294Sandreas.hansson@arm.com{ 669294Sandreas.hansson@arm.com} 679294Sandreas.hansson@arm.com 689294Sandreas.hansson@arm.comBaseMasterPort::~BaseMasterPort() 699294Sandreas.hansson@arm.com{ 709294Sandreas.hansson@arm.com} 719294Sandreas.hansson@arm.com 729294Sandreas.hansson@arm.comBaseSlavePort& 739294Sandreas.hansson@arm.comBaseMasterPort::getSlavePort() const 749294Sandreas.hansson@arm.com{ 7511321Ssteve.reinhardt@amd.com if (_baseSlavePort == NULL) 769294Sandreas.hansson@arm.com panic("Cannot getSlavePort on master port %s that is not connected\n", 779294Sandreas.hansson@arm.com name()); 789294Sandreas.hansson@arm.com 799294Sandreas.hansson@arm.com return *_baseSlavePort; 809294Sandreas.hansson@arm.com} 819294Sandreas.hansson@arm.com 829294Sandreas.hansson@arm.combool 839294Sandreas.hansson@arm.comBaseMasterPort::isConnected() const 849294Sandreas.hansson@arm.com{ 859294Sandreas.hansson@arm.com return _baseSlavePort != NULL; 869294Sandreas.hansson@arm.com} 879294Sandreas.hansson@arm.com 8813769Sgabeblack@google.comBaseSlavePort::BaseSlavePort(const std::string &name, PortID _id) 8913769Sgabeblack@google.com : Port(name, _id), _baseMasterPort(NULL) 909294Sandreas.hansson@arm.com{ 919294Sandreas.hansson@arm.com} 929294Sandreas.hansson@arm.com 939294Sandreas.hansson@arm.comBaseSlavePort::~BaseSlavePort() 949294Sandreas.hansson@arm.com{ 959294Sandreas.hansson@arm.com} 969294Sandreas.hansson@arm.com 979294Sandreas.hansson@arm.comBaseMasterPort& 989294Sandreas.hansson@arm.comBaseSlavePort::getMasterPort() const 999294Sandreas.hansson@arm.com{ 10011321Ssteve.reinhardt@amd.com if (_baseMasterPort == NULL) 1019294Sandreas.hansson@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 1029294Sandreas.hansson@arm.com name()); 1039294Sandreas.hansson@arm.com 1049294Sandreas.hansson@arm.com return *_baseMasterPort; 1059294Sandreas.hansson@arm.com} 1069294Sandreas.hansson@arm.com 1079294Sandreas.hansson@arm.combool 1089294Sandreas.hansson@arm.comBaseSlavePort::isConnected() const 1099294Sandreas.hansson@arm.com{ 1109294Sandreas.hansson@arm.com return _baseMasterPort != NULL; 1119294Sandreas.hansson@arm.com} 1129294Sandreas.hansson@arm.com 1138922Swilliam.wang@arm.com/** 1148922Swilliam.wang@arm.com * Master port 1158922Swilliam.wang@arm.com */ 11613769Sgabeblack@google.comMasterPort::MasterPort(const std::string& name, MemObject* _owner, PortID _id) 11713769Sgabeblack@google.com : BaseMasterPort(name, _id), _slavePort(NULL), owner(*_owner) 1182642Sstever@eecs.umich.edu{ 1198922Swilliam.wang@arm.com} 1205476Snate@binkert.org 1218922Swilliam.wang@arm.comMasterPort::~MasterPort() 1228922Swilliam.wang@arm.com{ 1238922Swilliam.wang@arm.com} 1248922Swilliam.wang@arm.com 1259294Sandreas.hansson@arm.comvoid 1269294Sandreas.hansson@arm.comMasterPort::bind(BaseSlavePort& slave_port) 1278922Swilliam.wang@arm.com{ 1289294Sandreas.hansson@arm.com // bind on the level of the base ports 1299294Sandreas.hansson@arm.com _baseSlavePort = &slave_port; 1308922Swilliam.wang@arm.com 1319294Sandreas.hansson@arm.com // also attempt to base the slave to the appropriate type 1329294Sandreas.hansson@arm.com SlavePort* cast_slave_port = dynamic_cast<SlavePort*>(&slave_port); 1339294Sandreas.hansson@arm.com 1349294Sandreas.hansson@arm.com // if this port is compatible, then proceed with the binding 1359294Sandreas.hansson@arm.com if (cast_slave_port != NULL) { 1369294Sandreas.hansson@arm.com // master port keeps track of the slave port 1379294Sandreas.hansson@arm.com _slavePort = cast_slave_port; 1389294Sandreas.hansson@arm.com // slave port also keeps track of master port 1399294Sandreas.hansson@arm.com _slavePort->bind(*this); 1409294Sandreas.hansson@arm.com } else { 1419294Sandreas.hansson@arm.com fatal("Master port %s cannot bind to %s\n", name(), 1429294Sandreas.hansson@arm.com slave_port.name()); 1439294Sandreas.hansson@arm.com } 1442642Sstever@eecs.umich.edu} 1452642Sstever@eecs.umich.edu 1462642Sstever@eecs.umich.eduvoid 1479178Sandreas.hansson@arm.comMasterPort::unbind() 1489152Satgutier@umich.edu{ 1499178Sandreas.hansson@arm.com if (_slavePort == NULL) 1509178Sandreas.hansson@arm.com panic("Attempting to unbind master port %s that is not connected\n", 1519178Sandreas.hansson@arm.com name()); 1529178Sandreas.hansson@arm.com _slavePort->unbind(); 1539152Satgutier@umich.edu _slavePort = NULL; 1549294Sandreas.hansson@arm.com _baseSlavePort = NULL; 1558922Swilliam.wang@arm.com} 1568922Swilliam.wang@arm.com 1579089Sandreas.hansson@arm.comAddrRangeList 1589089Sandreas.hansson@arm.comMasterPort::getAddrRanges() const 1599089Sandreas.hansson@arm.com{ 1609089Sandreas.hansson@arm.com return _slavePort->getAddrRanges(); 1619089Sandreas.hansson@arm.com} 1629089Sandreas.hansson@arm.com 1638948Sandreas.hansson@arm.comTick 1648948Sandreas.hansson@arm.comMasterPort::sendAtomic(PacketPtr pkt) 1658948Sandreas.hansson@arm.com{ 1668975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1678948Sandreas.hansson@arm.com return _slavePort->recvAtomic(pkt); 1688948Sandreas.hansson@arm.com} 1698948Sandreas.hansson@arm.com 1708948Sandreas.hansson@arm.comvoid 1718948Sandreas.hansson@arm.comMasterPort::sendFunctional(PacketPtr pkt) 1728948Sandreas.hansson@arm.com{ 1738975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1748948Sandreas.hansson@arm.com return _slavePort->recvFunctional(pkt); 1758948Sandreas.hansson@arm.com} 1768948Sandreas.hansson@arm.com 1778975Sandreas.hansson@arm.combool 1788975Sandreas.hansson@arm.comMasterPort::sendTimingReq(PacketPtr pkt) 1798975Sandreas.hansson@arm.com{ 1808975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1818975Sandreas.hansson@arm.com return _slavePort->recvTimingReq(pkt); 1828975Sandreas.hansson@arm.com} 1838975Sandreas.hansson@arm.com 1848975Sandreas.hansson@arm.combool 18512342Snikos.nikoleris@arm.comMasterPort::tryTiming(PacketPtr pkt) const 18612342Snikos.nikoleris@arm.com{ 18712342Snikos.nikoleris@arm.com assert(pkt->isRequest()); 18812342Snikos.nikoleris@arm.com return _slavePort->tryTiming(pkt); 18912342Snikos.nikoleris@arm.com} 19012342Snikos.nikoleris@arm.com 19112342Snikos.nikoleris@arm.combool 1928975Sandreas.hansson@arm.comMasterPort::sendTimingSnoopResp(PacketPtr pkt) 1938975Sandreas.hansson@arm.com{ 1948975Sandreas.hansson@arm.com assert(pkt->isResponse()); 1958975Sandreas.hansson@arm.com return _slavePort->recvTimingSnoopResp(pkt); 1968975Sandreas.hansson@arm.com} 1978975Sandreas.hansson@arm.com 1988948Sandreas.hansson@arm.comvoid 19910713Sandreas.hansson@arm.comMasterPort::sendRetryResp() 2009087Sandreas.hansson@arm.com{ 20110713Sandreas.hansson@arm.com _slavePort->recvRespRetry(); 2029087Sandreas.hansson@arm.com} 2039087Sandreas.hansson@arm.com 2049087Sandreas.hansson@arm.comvoid 2058922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 2065314Sstever@gmail.com{ 20712749Sgiacomo.travaglini@arm.com auto req = std::make_shared<Request>( 20812749Sgiacomo.travaglini@arm.com a, 1, 0, Request::funcMasterId); 20912749Sgiacomo.travaglini@arm.com 21012749Sgiacomo.travaglini@arm.com Packet pkt(req, MemCmd::PrintReq); 2115314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 2125314Sstever@gmail.com pkt.senderState = &prs; 2135314Sstever@gmail.com 2145314Sstever@gmail.com sendFunctional(&pkt); 2155314Sstever@gmail.com} 2168922Swilliam.wang@arm.com 2178922Swilliam.wang@arm.com/** 2188922Swilliam.wang@arm.com * Slave port 2198922Swilliam.wang@arm.com */ 22013769Sgabeblack@google.comSlavePort::SlavePort(const std::string& name, MemObject* _owner, PortID id) 22113769Sgabeblack@google.com : BaseSlavePort(name, id), _masterPort(NULL), owner(*_owner) 2228922Swilliam.wang@arm.com{ 2238922Swilliam.wang@arm.com} 2248922Swilliam.wang@arm.com 2258922Swilliam.wang@arm.comSlavePort::~SlavePort() 2268922Swilliam.wang@arm.com{ 2278922Swilliam.wang@arm.com} 2288922Swilliam.wang@arm.com 2298922Swilliam.wang@arm.comvoid 2309178Sandreas.hansson@arm.comSlavePort::unbind() 2319152Satgutier@umich.edu{ 2329294Sandreas.hansson@arm.com _baseMasterPort = NULL; 2339152Satgutier@umich.edu _masterPort = NULL; 2349152Satgutier@umich.edu} 2359152Satgutier@umich.edu 2369152Satgutier@umich.eduvoid 2378922Swilliam.wang@arm.comSlavePort::bind(MasterPort& master_port) 2388922Swilliam.wang@arm.com{ 2399294Sandreas.hansson@arm.com _baseMasterPort = &master_port; 2408922Swilliam.wang@arm.com _masterPort = &master_port; 2418922Swilliam.wang@arm.com} 2428922Swilliam.wang@arm.com 2438948Sandreas.hansson@arm.comTick 2448948Sandreas.hansson@arm.comSlavePort::sendAtomicSnoop(PacketPtr pkt) 2458948Sandreas.hansson@arm.com{ 2468975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2478948Sandreas.hansson@arm.com return _masterPort->recvAtomicSnoop(pkt); 2488948Sandreas.hansson@arm.com} 2498948Sandreas.hansson@arm.com 2508948Sandreas.hansson@arm.comvoid 2518948Sandreas.hansson@arm.comSlavePort::sendFunctionalSnoop(PacketPtr pkt) 2528948Sandreas.hansson@arm.com{ 2538975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2548948Sandreas.hansson@arm.com return _masterPort->recvFunctionalSnoop(pkt); 2558948Sandreas.hansson@arm.com} 2568975Sandreas.hansson@arm.com 2578975Sandreas.hansson@arm.combool 2588975Sandreas.hansson@arm.comSlavePort::sendTimingResp(PacketPtr pkt) 2598975Sandreas.hansson@arm.com{ 2608975Sandreas.hansson@arm.com assert(pkt->isResponse()); 2618975Sandreas.hansson@arm.com return _masterPort->recvTimingResp(pkt); 2628975Sandreas.hansson@arm.com} 2638975Sandreas.hansson@arm.com 2648975Sandreas.hansson@arm.comvoid 2658975Sandreas.hansson@arm.comSlavePort::sendTimingSnoopReq(PacketPtr pkt) 2668975Sandreas.hansson@arm.com{ 2678975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2688975Sandreas.hansson@arm.com _masterPort->recvTimingSnoopReq(pkt); 2698975Sandreas.hansson@arm.com} 2709087Sandreas.hansson@arm.com 2719087Sandreas.hansson@arm.comvoid 27210713Sandreas.hansson@arm.comSlavePort::sendRetryReq() 2739087Sandreas.hansson@arm.com{ 27410713Sandreas.hansson@arm.com _masterPort->recvReqRetry(); 2759087Sandreas.hansson@arm.com} 27610713Sandreas.hansson@arm.com 27710713Sandreas.hansson@arm.comvoid 27810713Sandreas.hansson@arm.comSlavePort::sendRetrySnoopResp() 27910713Sandreas.hansson@arm.com{ 28010713Sandreas.hansson@arm.com _masterPort->recvRetrySnoopResp(); 28110713Sandreas.hansson@arm.com} 282