port.cc revision 9294
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) 549087Sandreas.hansson@arm.com : portName(_name), id(_id), 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 629294Sandreas.hansson@arm.comBaseMasterPort::BaseMasterPort(const std::string& name, MemObject* owner, 639294Sandreas.hansson@arm.com PortID _id) 649294Sandreas.hansson@arm.com : Port(name, *owner, _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{ 759294Sandreas.hansson@arm.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 889294Sandreas.hansson@arm.comBaseSlavePort::BaseSlavePort(const std::string& name, MemObject* owner, 899294Sandreas.hansson@arm.com PortID _id) 909294Sandreas.hansson@arm.com : Port(name, *owner, _id), _baseMasterPort(NULL) 919294Sandreas.hansson@arm.com{ 929294Sandreas.hansson@arm.com} 939294Sandreas.hansson@arm.com 949294Sandreas.hansson@arm.comBaseSlavePort::~BaseSlavePort() 959294Sandreas.hansson@arm.com{ 969294Sandreas.hansson@arm.com} 979294Sandreas.hansson@arm.com 989294Sandreas.hansson@arm.comBaseMasterPort& 999294Sandreas.hansson@arm.comBaseSlavePort::getMasterPort() const 1009294Sandreas.hansson@arm.com{ 1019294Sandreas.hansson@arm.com if(_baseMasterPort == NULL) 1029294Sandreas.hansson@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 1039294Sandreas.hansson@arm.com name()); 1049294Sandreas.hansson@arm.com 1059294Sandreas.hansson@arm.com return *_baseMasterPort; 1069294Sandreas.hansson@arm.com} 1079294Sandreas.hansson@arm.com 1089294Sandreas.hansson@arm.combool 1099294Sandreas.hansson@arm.comBaseSlavePort::isConnected() const 1109294Sandreas.hansson@arm.com{ 1119294Sandreas.hansson@arm.com return _baseMasterPort != NULL; 1129294Sandreas.hansson@arm.com} 1139294Sandreas.hansson@arm.com 1148922Swilliam.wang@arm.com/** 1158922Swilliam.wang@arm.com * Master port 1168922Swilliam.wang@arm.com */ 1179031Sandreas.hansson@arm.comMasterPort::MasterPort(const std::string& name, MemObject* owner, PortID _id) 1189294Sandreas.hansson@arm.com : BaseMasterPort(name, owner, _id), _slavePort(NULL) 1192642Sstever@eecs.umich.edu{ 1208922Swilliam.wang@arm.com} 1215476Snate@binkert.org 1228922Swilliam.wang@arm.comMasterPort::~MasterPort() 1238922Swilliam.wang@arm.com{ 1248922Swilliam.wang@arm.com} 1258922Swilliam.wang@arm.com 1269294Sandreas.hansson@arm.comvoid 1279294Sandreas.hansson@arm.comMasterPort::bind(BaseSlavePort& slave_port) 1288922Swilliam.wang@arm.com{ 1299294Sandreas.hansson@arm.com // bind on the level of the base ports 1309294Sandreas.hansson@arm.com _baseSlavePort = &slave_port; 1318922Swilliam.wang@arm.com 1329294Sandreas.hansson@arm.com // also attempt to base the slave to the appropriate type 1339294Sandreas.hansson@arm.com SlavePort* cast_slave_port = dynamic_cast<SlavePort*>(&slave_port); 1349294Sandreas.hansson@arm.com 1359294Sandreas.hansson@arm.com // if this port is compatible, then proceed with the binding 1369294Sandreas.hansson@arm.com if (cast_slave_port != NULL) { 1379294Sandreas.hansson@arm.com // master port keeps track of the slave port 1389294Sandreas.hansson@arm.com _slavePort = cast_slave_port; 1399294Sandreas.hansson@arm.com // slave port also keeps track of master port 1409294Sandreas.hansson@arm.com _slavePort->bind(*this); 1419294Sandreas.hansson@arm.com } else { 1429294Sandreas.hansson@arm.com fatal("Master port %s cannot bind to %s\n", name(), 1439294Sandreas.hansson@arm.com slave_port.name()); 1449294Sandreas.hansson@arm.com } 1452642Sstever@eecs.umich.edu} 1462642Sstever@eecs.umich.edu 1472642Sstever@eecs.umich.eduvoid 1489178Sandreas.hansson@arm.comMasterPort::unbind() 1499152Satgutier@umich.edu{ 1509178Sandreas.hansson@arm.com if (_slavePort == NULL) 1519178Sandreas.hansson@arm.com panic("Attempting to unbind master port %s that is not connected\n", 1529178Sandreas.hansson@arm.com name()); 1539178Sandreas.hansson@arm.com _slavePort->unbind(); 1549152Satgutier@umich.edu _slavePort = NULL; 1559294Sandreas.hansson@arm.com _baseSlavePort = NULL; 1568922Swilliam.wang@arm.com} 1578922Swilliam.wang@arm.com 1588922Swilliam.wang@arm.comunsigned 1598922Swilliam.wang@arm.comMasterPort::peerBlockSize() const 1608922Swilliam.wang@arm.com{ 1618922Swilliam.wang@arm.com return _slavePort->deviceBlockSize(); 1628922Swilliam.wang@arm.com} 1638922Swilliam.wang@arm.com 1649089Sandreas.hansson@arm.comAddrRangeList 1659089Sandreas.hansson@arm.comMasterPort::getAddrRanges() const 1669089Sandreas.hansson@arm.com{ 1679089Sandreas.hansson@arm.com return _slavePort->getAddrRanges(); 1689089Sandreas.hansson@arm.com} 1699089Sandreas.hansson@arm.com 1708948Sandreas.hansson@arm.comTick 1718948Sandreas.hansson@arm.comMasterPort::sendAtomic(PacketPtr pkt) 1728948Sandreas.hansson@arm.com{ 1738975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1748948Sandreas.hansson@arm.com return _slavePort->recvAtomic(pkt); 1758948Sandreas.hansson@arm.com} 1768948Sandreas.hansson@arm.com 1778948Sandreas.hansson@arm.comvoid 1788948Sandreas.hansson@arm.comMasterPort::sendFunctional(PacketPtr pkt) 1798948Sandreas.hansson@arm.com{ 1808975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1818948Sandreas.hansson@arm.com return _slavePort->recvFunctional(pkt); 1828948Sandreas.hansson@arm.com} 1838948Sandreas.hansson@arm.com 1848975Sandreas.hansson@arm.combool 1858975Sandreas.hansson@arm.comMasterPort::sendTimingReq(PacketPtr pkt) 1868975Sandreas.hansson@arm.com{ 1878975Sandreas.hansson@arm.com assert(pkt->isRequest()); 1888975Sandreas.hansson@arm.com return _slavePort->recvTimingReq(pkt); 1898975Sandreas.hansson@arm.com} 1908975Sandreas.hansson@arm.com 1918975Sandreas.hansson@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 1999087Sandreas.hansson@arm.comMasterPort::sendRetry() 2009087Sandreas.hansson@arm.com{ 2019087Sandreas.hansson@arm.com _slavePort->recvRetry(); 2029087Sandreas.hansson@arm.com} 2039087Sandreas.hansson@arm.com 2049087Sandreas.hansson@arm.comvoid 2058922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 2065314Sstever@gmail.com{ 2078832SAli.Saidi@ARM.com Request req(a, 1, 0, Request::funcMasterId); 2088949Sandreas.hansson@arm.com Packet pkt(&req, MemCmd::PrintReq); 2095314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 2105314Sstever@gmail.com pkt.senderState = &prs; 2115314Sstever@gmail.com 2125314Sstever@gmail.com sendFunctional(&pkt); 2135314Sstever@gmail.com} 2148922Swilliam.wang@arm.com 2158922Swilliam.wang@arm.com/** 2168922Swilliam.wang@arm.com * Slave port 2178922Swilliam.wang@arm.com */ 2189031Sandreas.hansson@arm.comSlavePort::SlavePort(const std::string& name, MemObject* owner, PortID id) 2199294Sandreas.hansson@arm.com : BaseSlavePort(name, owner, id), _masterPort(NULL) 2208922Swilliam.wang@arm.com{ 2218922Swilliam.wang@arm.com} 2228922Swilliam.wang@arm.com 2238922Swilliam.wang@arm.comSlavePort::~SlavePort() 2248922Swilliam.wang@arm.com{ 2258922Swilliam.wang@arm.com} 2268922Swilliam.wang@arm.com 2278922Swilliam.wang@arm.comvoid 2289178Sandreas.hansson@arm.comSlavePort::unbind() 2299152Satgutier@umich.edu{ 2309294Sandreas.hansson@arm.com _baseMasterPort = NULL; 2319152Satgutier@umich.edu _masterPort = NULL; 2329152Satgutier@umich.edu} 2339152Satgutier@umich.edu 2349152Satgutier@umich.eduvoid 2358922Swilliam.wang@arm.comSlavePort::bind(MasterPort& master_port) 2368922Swilliam.wang@arm.com{ 2379294Sandreas.hansson@arm.com _baseMasterPort = &master_port; 2388922Swilliam.wang@arm.com _masterPort = &master_port; 2398922Swilliam.wang@arm.com} 2408922Swilliam.wang@arm.com 2418922Swilliam.wang@arm.comunsigned 2428922Swilliam.wang@arm.comSlavePort::peerBlockSize() const 2438922Swilliam.wang@arm.com{ 2448922Swilliam.wang@arm.com return _masterPort->deviceBlockSize(); 2458922Swilliam.wang@arm.com} 2468922Swilliam.wang@arm.com 2478948Sandreas.hansson@arm.comTick 2488948Sandreas.hansson@arm.comSlavePort::sendAtomicSnoop(PacketPtr pkt) 2498948Sandreas.hansson@arm.com{ 2508975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2518948Sandreas.hansson@arm.com return _masterPort->recvAtomicSnoop(pkt); 2528948Sandreas.hansson@arm.com} 2538948Sandreas.hansson@arm.com 2548948Sandreas.hansson@arm.comvoid 2558948Sandreas.hansson@arm.comSlavePort::sendFunctionalSnoop(PacketPtr pkt) 2568948Sandreas.hansson@arm.com{ 2578975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2588948Sandreas.hansson@arm.com return _masterPort->recvFunctionalSnoop(pkt); 2598948Sandreas.hansson@arm.com} 2608975Sandreas.hansson@arm.com 2618975Sandreas.hansson@arm.combool 2628975Sandreas.hansson@arm.comSlavePort::sendTimingResp(PacketPtr pkt) 2638975Sandreas.hansson@arm.com{ 2648975Sandreas.hansson@arm.com assert(pkt->isResponse()); 2658975Sandreas.hansson@arm.com return _masterPort->recvTimingResp(pkt); 2668975Sandreas.hansson@arm.com} 2678975Sandreas.hansson@arm.com 2688975Sandreas.hansson@arm.comvoid 2698975Sandreas.hansson@arm.comSlavePort::sendTimingSnoopReq(PacketPtr pkt) 2708975Sandreas.hansson@arm.com{ 2718975Sandreas.hansson@arm.com assert(pkt->isRequest()); 2728975Sandreas.hansson@arm.com _masterPort->recvTimingSnoopReq(pkt); 2738975Sandreas.hansson@arm.com} 2749087Sandreas.hansson@arm.com 2759087Sandreas.hansson@arm.comvoid 2769087Sandreas.hansson@arm.comSlavePort::sendRetry() 2779087Sandreas.hansson@arm.com{ 2789087Sandreas.hansson@arm.com _masterPort->recvRetry(); 2799087Sandreas.hansson@arm.com} 280