port.cc revision 13782
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.comBaseMasterPort::BaseMasterPort(const std::string &name, PortID _id) 5513769Sgabeblack@google.com : Port(name, _id), _baseSlavePort(NULL) 569294Sandreas.hansson@arm.com{ 579294Sandreas.hansson@arm.com} 589294Sandreas.hansson@arm.com 599294Sandreas.hansson@arm.comBaseMasterPort::~BaseMasterPort() 609294Sandreas.hansson@arm.com{ 619294Sandreas.hansson@arm.com} 629294Sandreas.hansson@arm.com 639294Sandreas.hansson@arm.comBaseSlavePort& 649294Sandreas.hansson@arm.comBaseMasterPort::getSlavePort() const 659294Sandreas.hansson@arm.com{ 6611321Ssteve.reinhardt@amd.com if (_baseSlavePort == NULL) 679294Sandreas.hansson@arm.com panic("Cannot getSlavePort on master port %s that is not connected\n", 689294Sandreas.hansson@arm.com name()); 699294Sandreas.hansson@arm.com 709294Sandreas.hansson@arm.com return *_baseSlavePort; 719294Sandreas.hansson@arm.com} 729294Sandreas.hansson@arm.com 7313769Sgabeblack@google.comBaseSlavePort::BaseSlavePort(const std::string &name, PortID _id) 7413769Sgabeblack@google.com : Port(name, _id), _baseMasterPort(NULL) 759294Sandreas.hansson@arm.com{ 769294Sandreas.hansson@arm.com} 779294Sandreas.hansson@arm.com 789294Sandreas.hansson@arm.comBaseSlavePort::~BaseSlavePort() 799294Sandreas.hansson@arm.com{ 809294Sandreas.hansson@arm.com} 819294Sandreas.hansson@arm.com 829294Sandreas.hansson@arm.comBaseMasterPort& 839294Sandreas.hansson@arm.comBaseSlavePort::getMasterPort() const 849294Sandreas.hansson@arm.com{ 8511321Ssteve.reinhardt@amd.com if (_baseMasterPort == NULL) 869294Sandreas.hansson@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 879294Sandreas.hansson@arm.com name()); 889294Sandreas.hansson@arm.com 899294Sandreas.hansson@arm.com return *_baseMasterPort; 909294Sandreas.hansson@arm.com} 919294Sandreas.hansson@arm.com 928922Swilliam.wang@arm.com/** 938922Swilliam.wang@arm.com * Master port 948922Swilliam.wang@arm.com */ 9513769Sgabeblack@google.comMasterPort::MasterPort(const std::string& name, MemObject* _owner, PortID _id) 9613769Sgabeblack@google.com : BaseMasterPort(name, _id), _slavePort(NULL), owner(*_owner) 972642Sstever@eecs.umich.edu{ 988922Swilliam.wang@arm.com} 995476Snate@binkert.org 1008922Swilliam.wang@arm.comMasterPort::~MasterPort() 1018922Swilliam.wang@arm.com{ 1028922Swilliam.wang@arm.com} 1038922Swilliam.wang@arm.com 1049294Sandreas.hansson@arm.comvoid 10513782Sgabeblack@google.comMasterPort::bind(Port &peer) 1068922Swilliam.wang@arm.com{ 10713782Sgabeblack@google.com auto *slave_port = dynamic_cast<SlavePort *>(&peer); 10813782Sgabeblack@google.com if (!slave_port) { 10913782Sgabeblack@google.com fatal("Attempt to bind port %s to non-slave port %s.", 11013782Sgabeblack@google.com name(), peer.name()); 11113782Sgabeblack@google.com } 1129294Sandreas.hansson@arm.com // bind on the level of the base ports 11313782Sgabeblack@google.com _baseSlavePort = slave_port; 1148922Swilliam.wang@arm.com 11513782Sgabeblack@google.com // master port keeps track of the slave port 11613782Sgabeblack@google.com _slavePort = slave_port; 11713782Sgabeblack@google.com _connected = true; 11813782Sgabeblack@google.com // slave port also keeps track of master port 11913782Sgabeblack@google.com _slavePort->slaveBind(*this); 1202642Sstever@eecs.umich.edu} 1212642Sstever@eecs.umich.edu 1222642Sstever@eecs.umich.eduvoid 1239178Sandreas.hansson@arm.comMasterPort::unbind() 1249152Satgutier@umich.edu{ 1259178Sandreas.hansson@arm.com if (_slavePort == NULL) 1269178Sandreas.hansson@arm.com panic("Attempting to unbind master port %s that is not connected\n", 1279178Sandreas.hansson@arm.com name()); 12813782Sgabeblack@google.com _slavePort->slaveUnbind(); 1299152Satgutier@umich.edu _slavePort = NULL; 13013782Sgabeblack@google.com _connected = false; 1319294Sandreas.hansson@arm.com _baseSlavePort = NULL; 1328922Swilliam.wang@arm.com} 1338922Swilliam.wang@arm.com 1349089Sandreas.hansson@arm.comAddrRangeList 1359089Sandreas.hansson@arm.comMasterPort::getAddrRanges() const 1369089Sandreas.hansson@arm.com{ 1379089Sandreas.hansson@arm.com return _slavePort->getAddrRanges(); 1389089Sandreas.hansson@arm.com} 1399089Sandreas.hansson@arm.com 1408948Sandreas.hansson@arm.comTick 1418948Sandreas.hansson@arm.comMasterPort::sendAtomic(PacketPtr pkt) 1428948Sandreas.hansson@arm.com{ 1438975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1448948Sandreas.hansson@arm.com return _slavePort->recvAtomic(pkt); 1458948Sandreas.hansson@arm.com} 1468948Sandreas.hansson@arm.com 1478948Sandreas.hansson@arm.comvoid 1488948Sandreas.hansson@arm.comMasterPort::sendFunctional(PacketPtr pkt) 1498948Sandreas.hansson@arm.com{ 1508975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1518948Sandreas.hansson@arm.com return _slavePort->recvFunctional(pkt); 1528948Sandreas.hansson@arm.com} 1538948Sandreas.hansson@arm.com 1548975Sandreas.hansson@arm.combool 1558975Sandreas.hansson@arm.comMasterPort::sendTimingReq(PacketPtr pkt) 1568975Sandreas.hansson@arm.com{ 1578975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1588975Sandreas.hansson@arm.com return _slavePort->recvTimingReq(pkt); 1598975Sandreas.hansson@arm.com} 1608975Sandreas.hansson@arm.com 1618975Sandreas.hansson@arm.combool 16212342Snikos.nikoleris@arm.comMasterPort::tryTiming(PacketPtr pkt) const 16312342Snikos.nikoleris@arm.com{ 16412342Snikos.nikoleris@arm.com assert(pkt->isRequest()); 16512342Snikos.nikoleris@arm.com return _slavePort->tryTiming(pkt); 16612342Snikos.nikoleris@arm.com} 16712342Snikos.nikoleris@arm.com 16812342Snikos.nikoleris@arm.combool 1698975Sandreas.hansson@arm.comMasterPort::sendTimingSnoopResp(PacketPtr pkt) 1708975Sandreas.hansson@arm.com{ 1718975Sandreas.hansson@arm.com assert(pkt->isResponse()); 1728975Sandreas.hansson@arm.com return _slavePort->recvTimingSnoopResp(pkt); 1738975Sandreas.hansson@arm.com} 1748975Sandreas.hansson@arm.com 1758948Sandreas.hansson@arm.comvoid 17610713Sandreas.hansson@arm.comMasterPort::sendRetryResp() 1779087Sandreas.hansson@arm.com{ 17810713Sandreas.hansson@arm.com _slavePort->recvRespRetry(); 1799087Sandreas.hansson@arm.com} 1809087Sandreas.hansson@arm.com 1819087Sandreas.hansson@arm.comvoid 1828922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 1835314Sstever@gmail.com{ 18412749Sgiacomo.travaglini@arm.com auto req = std::make_shared<Request>( 18512749Sgiacomo.travaglini@arm.com a, 1, 0, Request::funcMasterId); 18612749Sgiacomo.travaglini@arm.com 18712749Sgiacomo.travaglini@arm.com Packet pkt(req, MemCmd::PrintReq); 1885314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 1895314Sstever@gmail.com pkt.senderState = &prs; 1905314Sstever@gmail.com 1915314Sstever@gmail.com sendFunctional(&pkt); 1925314Sstever@gmail.com} 1938922Swilliam.wang@arm.com 1948922Swilliam.wang@arm.com/** 1958922Swilliam.wang@arm.com * Slave port 1968922Swilliam.wang@arm.com */ 19713769Sgabeblack@google.comSlavePort::SlavePort(const std::string& name, MemObject* _owner, PortID id) 19813769Sgabeblack@google.com : BaseSlavePort(name, id), _masterPort(NULL), owner(*_owner) 1998922Swilliam.wang@arm.com{ 2008922Swilliam.wang@arm.com} 2018922Swilliam.wang@arm.com 2028922Swilliam.wang@arm.comSlavePort::~SlavePort() 2038922Swilliam.wang@arm.com{ 2048922Swilliam.wang@arm.com} 2058922Swilliam.wang@arm.com 2068922Swilliam.wang@arm.comvoid 20713782Sgabeblack@google.comSlavePort::slaveUnbind() 2089152Satgutier@umich.edu{ 2099294Sandreas.hansson@arm.com _baseMasterPort = NULL; 2109152Satgutier@umich.edu _masterPort = NULL; 21113782Sgabeblack@google.com _connected = false; 2129152Satgutier@umich.edu} 2139152Satgutier@umich.edu 2149152Satgutier@umich.eduvoid 21513782Sgabeblack@google.comSlavePort::slaveBind(MasterPort& master_port) 2168922Swilliam.wang@arm.com{ 2179294Sandreas.hansson@arm.com _baseMasterPort = &master_port; 2188922Swilliam.wang@arm.com _masterPort = &master_port; 21913782Sgabeblack@google.com _connected = true; 2208922Swilliam.wang@arm.com} 2218922Swilliam.wang@arm.com 2228948Sandreas.hansson@arm.comTick 2238948Sandreas.hansson@arm.comSlavePort::sendAtomicSnoop(PacketPtr pkt) 2248948Sandreas.hansson@arm.com{ 2258975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2268948Sandreas.hansson@arm.com return _masterPort->recvAtomicSnoop(pkt); 2278948Sandreas.hansson@arm.com} 2288948Sandreas.hansson@arm.com 2298948Sandreas.hansson@arm.comvoid 2308948Sandreas.hansson@arm.comSlavePort::sendFunctionalSnoop(PacketPtr pkt) 2318948Sandreas.hansson@arm.com{ 2328975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2338948Sandreas.hansson@arm.com return _masterPort->recvFunctionalSnoop(pkt); 2348948Sandreas.hansson@arm.com} 2358975Sandreas.hansson@arm.com 2368975Sandreas.hansson@arm.combool 2378975Sandreas.hansson@arm.comSlavePort::sendTimingResp(PacketPtr pkt) 2388975Sandreas.hansson@arm.com{ 2398975Sandreas.hansson@arm.com assert(pkt->isResponse()); 2408975Sandreas.hansson@arm.com return _masterPort->recvTimingResp(pkt); 2418975Sandreas.hansson@arm.com} 2428975Sandreas.hansson@arm.com 2438975Sandreas.hansson@arm.comvoid 2448975Sandreas.hansson@arm.comSlavePort::sendTimingSnoopReq(PacketPtr pkt) 2458975Sandreas.hansson@arm.com{ 2468975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2478975Sandreas.hansson@arm.com _masterPort->recvTimingSnoopReq(pkt); 2488975Sandreas.hansson@arm.com} 2499087Sandreas.hansson@arm.com 2509087Sandreas.hansson@arm.comvoid 25110713Sandreas.hansson@arm.comSlavePort::sendRetryReq() 2529087Sandreas.hansson@arm.com{ 25310713Sandreas.hansson@arm.com _masterPort->recvReqRetry(); 2549087Sandreas.hansson@arm.com} 25510713Sandreas.hansson@arm.com 25610713Sandreas.hansson@arm.comvoid 25710713Sandreas.hansson@arm.comSlavePort::sendRetrySnoopResp() 25810713Sandreas.hansson@arm.com{ 25910713Sandreas.hansson@arm.com _masterPort->recvRetrySnoopResp(); 26010713Sandreas.hansson@arm.com} 261