port.cc revision 11793
12405SN/A/* 210713Sandreas.hansson@arm.com * Copyright (c) 2012,2015 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 549031Sandreas.hansson@arm.comPort::Port(const std::string &_name, MemObject& _owner, PortID _id) 559087Sandreas.hansson@arm.com : portName(_name), id(_id), owner(_owner) 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 639294Sandreas.hansson@arm.comBaseMasterPort::BaseMasterPort(const std::string& name, MemObject* owner, 649294Sandreas.hansson@arm.com PortID _id) 659294Sandreas.hansson@arm.com : Port(name, *owner, _id), _baseSlavePort(NULL) 669294Sandreas.hansson@arm.com{ 679294Sandreas.hansson@arm.com} 689294Sandreas.hansson@arm.com 699294Sandreas.hansson@arm.comBaseMasterPort::~BaseMasterPort() 709294Sandreas.hansson@arm.com{ 719294Sandreas.hansson@arm.com} 729294Sandreas.hansson@arm.com 739294Sandreas.hansson@arm.comBaseSlavePort& 749294Sandreas.hansson@arm.comBaseMasterPort::getSlavePort() const 759294Sandreas.hansson@arm.com{ 7611321Ssteve.reinhardt@amd.com if (_baseSlavePort == NULL) 779294Sandreas.hansson@arm.com panic("Cannot getSlavePort on master port %s that is not connected\n", 789294Sandreas.hansson@arm.com name()); 799294Sandreas.hansson@arm.com 809294Sandreas.hansson@arm.com return *_baseSlavePort; 819294Sandreas.hansson@arm.com} 829294Sandreas.hansson@arm.com 839294Sandreas.hansson@arm.combool 849294Sandreas.hansson@arm.comBaseMasterPort::isConnected() const 859294Sandreas.hansson@arm.com{ 869294Sandreas.hansson@arm.com return _baseSlavePort != NULL; 879294Sandreas.hansson@arm.com} 889294Sandreas.hansson@arm.com 899294Sandreas.hansson@arm.comBaseSlavePort::BaseSlavePort(const std::string& name, MemObject* owner, 909294Sandreas.hansson@arm.com PortID _id) 919294Sandreas.hansson@arm.com : Port(name, *owner, _id), _baseMasterPort(NULL) 929294Sandreas.hansson@arm.com{ 939294Sandreas.hansson@arm.com} 949294Sandreas.hansson@arm.com 959294Sandreas.hansson@arm.comBaseSlavePort::~BaseSlavePort() 969294Sandreas.hansson@arm.com{ 979294Sandreas.hansson@arm.com} 989294Sandreas.hansson@arm.com 999294Sandreas.hansson@arm.comBaseMasterPort& 1009294Sandreas.hansson@arm.comBaseSlavePort::getMasterPort() const 1019294Sandreas.hansson@arm.com{ 10211321Ssteve.reinhardt@amd.com if (_baseMasterPort == NULL) 1039294Sandreas.hansson@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 1049294Sandreas.hansson@arm.com name()); 1059294Sandreas.hansson@arm.com 1069294Sandreas.hansson@arm.com return *_baseMasterPort; 1079294Sandreas.hansson@arm.com} 1089294Sandreas.hansson@arm.com 1099294Sandreas.hansson@arm.combool 1109294Sandreas.hansson@arm.comBaseSlavePort::isConnected() const 1119294Sandreas.hansson@arm.com{ 1129294Sandreas.hansson@arm.com return _baseMasterPort != NULL; 1139294Sandreas.hansson@arm.com} 1149294Sandreas.hansson@arm.com 1158922Swilliam.wang@arm.com/** 1168922Swilliam.wang@arm.com * Master port 1178922Swilliam.wang@arm.com */ 1189031Sandreas.hansson@arm.comMasterPort::MasterPort(const std::string& name, MemObject* owner, PortID _id) 1199294Sandreas.hansson@arm.com : BaseMasterPort(name, owner, _id), _slavePort(NULL) 1202642Sstever@eecs.umich.edu{ 1218922Swilliam.wang@arm.com} 1225476Snate@binkert.org 1238922Swilliam.wang@arm.comMasterPort::~MasterPort() 1248922Swilliam.wang@arm.com{ 1258922Swilliam.wang@arm.com} 1268922Swilliam.wang@arm.com 1279294Sandreas.hansson@arm.comvoid 1289294Sandreas.hansson@arm.comMasterPort::bind(BaseSlavePort& slave_port) 1298922Swilliam.wang@arm.com{ 1309294Sandreas.hansson@arm.com // bind on the level of the base ports 1319294Sandreas.hansson@arm.com _baseSlavePort = &slave_port; 1328922Swilliam.wang@arm.com 1339294Sandreas.hansson@arm.com // also attempt to base the slave to the appropriate type 1349294Sandreas.hansson@arm.com SlavePort* cast_slave_port = dynamic_cast<SlavePort*>(&slave_port); 1359294Sandreas.hansson@arm.com 1369294Sandreas.hansson@arm.com // if this port is compatible, then proceed with the binding 1379294Sandreas.hansson@arm.com if (cast_slave_port != NULL) { 1389294Sandreas.hansson@arm.com // master port keeps track of the slave port 1399294Sandreas.hansson@arm.com _slavePort = cast_slave_port; 1409294Sandreas.hansson@arm.com // slave port also keeps track of master port 1419294Sandreas.hansson@arm.com _slavePort->bind(*this); 1429294Sandreas.hansson@arm.com } else { 1439294Sandreas.hansson@arm.com fatal("Master port %s cannot bind to %s\n", name(), 1449294Sandreas.hansson@arm.com slave_port.name()); 1459294Sandreas.hansson@arm.com } 1462642Sstever@eecs.umich.edu} 1472642Sstever@eecs.umich.edu 1482642Sstever@eecs.umich.eduvoid 1499178Sandreas.hansson@arm.comMasterPort::unbind() 1509152Satgutier@umich.edu{ 1519178Sandreas.hansson@arm.com if (_slavePort == NULL) 1529178Sandreas.hansson@arm.com panic("Attempting to unbind master port %s that is not connected\n", 1539178Sandreas.hansson@arm.com name()); 1549178Sandreas.hansson@arm.com _slavePort->unbind(); 1559152Satgutier@umich.edu _slavePort = NULL; 1569294Sandreas.hansson@arm.com _baseSlavePort = NULL; 1578922Swilliam.wang@arm.com} 1588922Swilliam.wang@arm.com 1599089Sandreas.hansson@arm.comAddrRangeList 1609089Sandreas.hansson@arm.comMasterPort::getAddrRanges() const 1619089Sandreas.hansson@arm.com{ 1629089Sandreas.hansson@arm.com return _slavePort->getAddrRanges(); 1639089Sandreas.hansson@arm.com} 1649089Sandreas.hansson@arm.com 1658948Sandreas.hansson@arm.comTick 1668948Sandreas.hansson@arm.comMasterPort::sendAtomic(PacketPtr pkt) 1678948Sandreas.hansson@arm.com{ 1688975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1698948Sandreas.hansson@arm.com return _slavePort->recvAtomic(pkt); 1708948Sandreas.hansson@arm.com} 1718948Sandreas.hansson@arm.com 1728948Sandreas.hansson@arm.comvoid 1738948Sandreas.hansson@arm.comMasterPort::sendFunctional(PacketPtr pkt) 1748948Sandreas.hansson@arm.com{ 1758975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1768948Sandreas.hansson@arm.com return _slavePort->recvFunctional(pkt); 1778948Sandreas.hansson@arm.com} 1788948Sandreas.hansson@arm.com 1798975Sandreas.hansson@arm.combool 1808975Sandreas.hansson@arm.comMasterPort::sendTimingReq(PacketPtr pkt) 1818975Sandreas.hansson@arm.com{ 1828975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1838975Sandreas.hansson@arm.com return _slavePort->recvTimingReq(pkt); 1848975Sandreas.hansson@arm.com} 1858975Sandreas.hansson@arm.com 1868975Sandreas.hansson@arm.combool 1878975Sandreas.hansson@arm.comMasterPort::sendTimingSnoopResp(PacketPtr pkt) 1888975Sandreas.hansson@arm.com{ 1898975Sandreas.hansson@arm.com assert(pkt->isResponse()); 1908975Sandreas.hansson@arm.com return _slavePort->recvTimingSnoopResp(pkt); 1918975Sandreas.hansson@arm.com} 1928975Sandreas.hansson@arm.com 1938948Sandreas.hansson@arm.comvoid 19410713Sandreas.hansson@arm.comMasterPort::sendRetryResp() 1959087Sandreas.hansson@arm.com{ 19610713Sandreas.hansson@arm.com _slavePort->recvRespRetry(); 1979087Sandreas.hansson@arm.com} 1989087Sandreas.hansson@arm.com 1999087Sandreas.hansson@arm.comvoid 2008922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 2015314Sstever@gmail.com{ 2028832SAli.Saidi@ARM.com Request req(a, 1, 0, Request::funcMasterId); 2038949Sandreas.hansson@arm.com Packet pkt(&req, MemCmd::PrintReq); 2045314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 2055314Sstever@gmail.com pkt.senderState = &prs; 2065314Sstever@gmail.com 2075314Sstever@gmail.com sendFunctional(&pkt); 2085314Sstever@gmail.com} 2098922Swilliam.wang@arm.com 2108922Swilliam.wang@arm.com/** 2118922Swilliam.wang@arm.com * Slave port 2128922Swilliam.wang@arm.com */ 2139031Sandreas.hansson@arm.comSlavePort::SlavePort(const std::string& name, MemObject* owner, PortID id) 2149294Sandreas.hansson@arm.com : BaseSlavePort(name, owner, id), _masterPort(NULL) 2158922Swilliam.wang@arm.com{ 2168922Swilliam.wang@arm.com} 2178922Swilliam.wang@arm.com 2188922Swilliam.wang@arm.comSlavePort::~SlavePort() 2198922Swilliam.wang@arm.com{ 2208922Swilliam.wang@arm.com} 2218922Swilliam.wang@arm.com 2228922Swilliam.wang@arm.comvoid 2239178Sandreas.hansson@arm.comSlavePort::unbind() 2249152Satgutier@umich.edu{ 2259294Sandreas.hansson@arm.com _baseMasterPort = NULL; 2269152Satgutier@umich.edu _masterPort = NULL; 2279152Satgutier@umich.edu} 2289152Satgutier@umich.edu 2299152Satgutier@umich.eduvoid 2308922Swilliam.wang@arm.comSlavePort::bind(MasterPort& master_port) 2318922Swilliam.wang@arm.com{ 2329294Sandreas.hansson@arm.com _baseMasterPort = &master_port; 2338922Swilliam.wang@arm.com _masterPort = &master_port; 2348922Swilliam.wang@arm.com} 2358922Swilliam.wang@arm.com 2368948Sandreas.hansson@arm.comTick 2378948Sandreas.hansson@arm.comSlavePort::sendAtomicSnoop(PacketPtr pkt) 2388948Sandreas.hansson@arm.com{ 2398975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2408948Sandreas.hansson@arm.com return _masterPort->recvAtomicSnoop(pkt); 2418948Sandreas.hansson@arm.com} 2428948Sandreas.hansson@arm.com 2438948Sandreas.hansson@arm.comvoid 2448948Sandreas.hansson@arm.comSlavePort::sendFunctionalSnoop(PacketPtr pkt) 2458948Sandreas.hansson@arm.com{ 2468975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2478948Sandreas.hansson@arm.com return _masterPort->recvFunctionalSnoop(pkt); 2488948Sandreas.hansson@arm.com} 2498975Sandreas.hansson@arm.com 2508975Sandreas.hansson@arm.combool 2518975Sandreas.hansson@arm.comSlavePort::sendTimingResp(PacketPtr pkt) 2528975Sandreas.hansson@arm.com{ 2538975Sandreas.hansson@arm.com assert(pkt->isResponse()); 2548975Sandreas.hansson@arm.com return _masterPort->recvTimingResp(pkt); 2558975Sandreas.hansson@arm.com} 2568975Sandreas.hansson@arm.com 2578975Sandreas.hansson@arm.comvoid 2588975Sandreas.hansson@arm.comSlavePort::sendTimingSnoopReq(PacketPtr pkt) 2598975Sandreas.hansson@arm.com{ 2608975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2618975Sandreas.hansson@arm.com _masterPort->recvTimingSnoopReq(pkt); 2628975Sandreas.hansson@arm.com} 2639087Sandreas.hansson@arm.com 2649087Sandreas.hansson@arm.comvoid 26510713Sandreas.hansson@arm.comSlavePort::sendRetryReq() 2669087Sandreas.hansson@arm.com{ 26710713Sandreas.hansson@arm.com _masterPort->recvReqRetry(); 2689087Sandreas.hansson@arm.com} 26910713Sandreas.hansson@arm.com 27010713Sandreas.hansson@arm.comvoid 27110713Sandreas.hansson@arm.comSlavePort::sendRetrySnoopResp() 27210713Sandreas.hansson@arm.com{ 27310713Sandreas.hansson@arm.com _masterPort->recvRetrySnoopResp(); 27410713Sandreas.hansson@arm.com} 275