port.hh revision 13771
12381SN/A/* 212342Snikos.nikoleris@arm.com * Copyright (c) 2011-2012,2015,2017 ARM Limited 38711Sandreas.hansson@arm.com * All rights reserved 48711Sandreas.hansson@arm.com * 58711Sandreas.hansson@arm.com * The license below extends only to copyright in the software and shall 68711Sandreas.hansson@arm.com * not be construed as granting a license to any other intellectual 78711Sandreas.hansson@arm.com * property including but not limited to intellectual property relating 88711Sandreas.hansson@arm.com * to a hardware implementation of the functionality of the software 98711Sandreas.hansson@arm.com * licensed hereunder. You may use the software subject to the license 108711Sandreas.hansson@arm.com * terms below provided that you ensure that this notice is replicated 118711Sandreas.hansson@arm.com * unmodified and in its entirety in all distributions of the software, 128711Sandreas.hansson@arm.com * modified or unmodified, in source code or in binary form. 138711Sandreas.hansson@arm.com * 142381SN/A * Copyright (c) 2002-2005 The Regents of The University of Michigan 152381SN/A * All rights reserved. 162381SN/A * 172381SN/A * Redistribution and use in source and binary forms, with or without 182381SN/A * modification, are permitted provided that the following conditions are 192381SN/A * met: redistributions of source code must retain the above copyright 202381SN/A * notice, this list of conditions and the following disclaimer; 212381SN/A * redistributions in binary form must reproduce the above copyright 222381SN/A * notice, this list of conditions and the following disclaimer in the 232381SN/A * documentation and/or other materials provided with the distribution; 242381SN/A * neither the name of the copyright holders nor the names of its 252381SN/A * contributors may be used to endorse or promote products derived from 262381SN/A * this software without specific prior written permission. 272381SN/A * 282381SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 292381SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 302381SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 312381SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 322381SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 332381SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 342381SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 352381SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 362381SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 372381SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 382381SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 392665Ssaidi@eecs.umich.edu * 402665Ssaidi@eecs.umich.edu * Authors: Ron Dreslinski 418853Sandreas.hansson@arm.com * Andreas Hansson 428922Swilliam.wang@arm.com * William Wang 432381SN/A */ 442381SN/A 452381SN/A/** 462381SN/A * @file 478922Swilliam.wang@arm.com * Port Object Declaration. 482381SN/A */ 492381SN/A 502381SN/A#ifndef __MEM_PORT_HH__ 512381SN/A#define __MEM_PORT_HH__ 522381SN/A 539235Sandreas.hansson@arm.com#include "base/addr_range.hh" 542381SN/A#include "mem/packet.hh" 5513771Sgabeblack@google.com#include "sim/port.hh" 562381SN/A 573401Sktlim@umich.educlass MemObject; 583401Sktlim@umich.edu 598922Swilliam.wang@arm.com/** Forward declaration */ 609294Sandreas.hansson@arm.comclass BaseSlavePort; 619294Sandreas.hansson@arm.com 629294Sandreas.hansson@arm.com/** 639294Sandreas.hansson@arm.com * A BaseMasterPort is a protocol-agnostic master port, responsible 649294Sandreas.hansson@arm.com * only for the structural connection to a slave port. The final 659294Sandreas.hansson@arm.com * master port that inherits from the base class must override the 669294Sandreas.hansson@arm.com * bind member function for the specific slave port class. 679294Sandreas.hansson@arm.com */ 689294Sandreas.hansson@arm.comclass BaseMasterPort : public Port 699294Sandreas.hansson@arm.com{ 709294Sandreas.hansson@arm.com 719294Sandreas.hansson@arm.com protected: 729294Sandreas.hansson@arm.com 739294Sandreas.hansson@arm.com BaseSlavePort* _baseSlavePort; 749294Sandreas.hansson@arm.com 7513769Sgabeblack@google.com BaseMasterPort(const std::string& name, PortID id=InvalidPortID); 769294Sandreas.hansson@arm.com virtual ~BaseMasterPort(); 779294Sandreas.hansson@arm.com 789294Sandreas.hansson@arm.com public: 799294Sandreas.hansson@arm.com 809294Sandreas.hansson@arm.com virtual void bind(BaseSlavePort& slave_port) = 0; 819294Sandreas.hansson@arm.com virtual void unbind() = 0; 829294Sandreas.hansson@arm.com BaseSlavePort& getSlavePort() const; 839294Sandreas.hansson@arm.com bool isConnected() const; 849294Sandreas.hansson@arm.com 859294Sandreas.hansson@arm.com}; 869294Sandreas.hansson@arm.com 879294Sandreas.hansson@arm.com/** 889294Sandreas.hansson@arm.com * A BaseSlavePort is a protocol-agnostic slave port, responsible 899294Sandreas.hansson@arm.com * only for the structural connection to a master port. 909294Sandreas.hansson@arm.com */ 919294Sandreas.hansson@arm.comclass BaseSlavePort : public Port 929294Sandreas.hansson@arm.com{ 939294Sandreas.hansson@arm.com 949294Sandreas.hansson@arm.com protected: 959294Sandreas.hansson@arm.com 969294Sandreas.hansson@arm.com BaseMasterPort* _baseMasterPort; 979294Sandreas.hansson@arm.com 9813769Sgabeblack@google.com BaseSlavePort(const std::string& name, PortID id=InvalidPortID); 999294Sandreas.hansson@arm.com virtual ~BaseSlavePort(); 1009294Sandreas.hansson@arm.com 1019294Sandreas.hansson@arm.com public: 1029294Sandreas.hansson@arm.com 1039294Sandreas.hansson@arm.com BaseMasterPort& getMasterPort() const; 1049294Sandreas.hansson@arm.com bool isConnected() const; 1059294Sandreas.hansson@arm.com 1069294Sandreas.hansson@arm.com}; 1079294Sandreas.hansson@arm.com 1089294Sandreas.hansson@arm.com/** Forward declaration */ 1098922Swilliam.wang@arm.comclass SlavePort; 1108922Swilliam.wang@arm.com 1118922Swilliam.wang@arm.com/** 1129294Sandreas.hansson@arm.com * A MasterPort is a specialisation of a BaseMasterPort, which 1139294Sandreas.hansson@arm.com * implements the default protocol for the three different level of 1149294Sandreas.hansson@arm.com * transport functions. In addition to the basic functionality of 1159294Sandreas.hansson@arm.com * sending packets, it also has functions to receive range changes or 1169294Sandreas.hansson@arm.com * determine if the port is snooping or not. 1178922Swilliam.wang@arm.com */ 1189294Sandreas.hansson@arm.comclass MasterPort : public BaseMasterPort 1198922Swilliam.wang@arm.com{ 1208922Swilliam.wang@arm.com 1218975Sandreas.hansson@arm.com friend class SlavePort; 1228975Sandreas.hansson@arm.com 1238922Swilliam.wang@arm.com private: 1248922Swilliam.wang@arm.com 1258922Swilliam.wang@arm.com SlavePort* _slavePort; 1268922Swilliam.wang@arm.com 12713769Sgabeblack@google.com protected: 12813769Sgabeblack@google.com 12913769Sgabeblack@google.com MemObject& owner; 13013769Sgabeblack@google.com 1318922Swilliam.wang@arm.com public: 1328922Swilliam.wang@arm.com 13313769Sgabeblack@google.com MasterPort(const std::string& name, MemObject* _owner, 13413769Sgabeblack@google.com PortID id=InvalidPortID); 1358922Swilliam.wang@arm.com virtual ~MasterPort(); 1368922Swilliam.wang@arm.com 1379178Sandreas.hansson@arm.com /** 1389178Sandreas.hansson@arm.com * Bind this master port to a slave port. This also does the 1399178Sandreas.hansson@arm.com * mirror action and binds the slave port to the master port. 1409178Sandreas.hansson@arm.com */ 1419294Sandreas.hansson@arm.com void bind(BaseSlavePort& slave_port); 1429178Sandreas.hansson@arm.com 1439178Sandreas.hansson@arm.com /** 1449178Sandreas.hansson@arm.com * Unbind this master port and the associated slave port. 1459178Sandreas.hansson@arm.com */ 1469178Sandreas.hansson@arm.com void unbind(); 1479178Sandreas.hansson@arm.com 1488922Swilliam.wang@arm.com /** 1498948Sandreas.hansson@arm.com * Send an atomic request packet, where the data is moved and the 1508948Sandreas.hansson@arm.com * state is updated in zero time, without interleaving with other 1518948Sandreas.hansson@arm.com * memory accesses. 1528948Sandreas.hansson@arm.com * 1538948Sandreas.hansson@arm.com * @param pkt Packet to send. 1548948Sandreas.hansson@arm.com * 1558948Sandreas.hansson@arm.com * @return Estimated latency of access. 1568948Sandreas.hansson@arm.com */ 1578948Sandreas.hansson@arm.com Tick sendAtomic(PacketPtr pkt); 1588948Sandreas.hansson@arm.com 1598948Sandreas.hansson@arm.com /** 1608948Sandreas.hansson@arm.com * Send a functional request packet, where the data is instantly 1618948Sandreas.hansson@arm.com * updated everywhere in the memory system, without affecting the 1628948Sandreas.hansson@arm.com * current state of any block or moving the block. 1638948Sandreas.hansson@arm.com * 1648948Sandreas.hansson@arm.com * @param pkt Packet to send. 1658948Sandreas.hansson@arm.com */ 1668948Sandreas.hansson@arm.com void sendFunctional(PacketPtr pkt); 1678948Sandreas.hansson@arm.com 1688948Sandreas.hansson@arm.com /** 1698975Sandreas.hansson@arm.com * Attempt to send a timing request to the slave port by calling 1708975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 1718975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 17210713Sandreas.hansson@arm.com * wait for a recvReqRetry at which point it can re-issue a 1738975Sandreas.hansson@arm.com * sendTimingReq. 1748975Sandreas.hansson@arm.com * 1758975Sandreas.hansson@arm.com * @param pkt Packet to send. 1768975Sandreas.hansson@arm.com * 1778975Sandreas.hansson@arm.com * @return If the send was succesful or not. 1788975Sandreas.hansson@arm.com */ 1798975Sandreas.hansson@arm.com bool sendTimingReq(PacketPtr pkt); 1808948Sandreas.hansson@arm.com 1818948Sandreas.hansson@arm.com /** 18212342Snikos.nikoleris@arm.com * Check if the slave can handle a timing request. 18312342Snikos.nikoleris@arm.com * 18412342Snikos.nikoleris@arm.com * If the send cannot be handled at the moment, as indicated by 18512342Snikos.nikoleris@arm.com * the return value, then the sender will receive a recvReqRetry 18612342Snikos.nikoleris@arm.com * at which point it can re-issue a sendTimingReq. 18712342Snikos.nikoleris@arm.com * 18812342Snikos.nikoleris@arm.com * @param pkt Packet to send. 18912342Snikos.nikoleris@arm.com * 19012342Snikos.nikoleris@arm.com * @return If the send was succesful or not. 19112342Snikos.nikoleris@arm.com */ 19212342Snikos.nikoleris@arm.com bool tryTiming(PacketPtr pkt) const; 19312342Snikos.nikoleris@arm.com 19412342Snikos.nikoleris@arm.com /** 1958975Sandreas.hansson@arm.com * Attempt to send a timing snoop response packet to the slave 1968975Sandreas.hansson@arm.com * port by calling its corresponding receive function. If the send 1978975Sandreas.hansson@arm.com * does not succeed, as indicated by the return value, then the 19810713Sandreas.hansson@arm.com * sender must wait for a recvRetrySnoop at which point it can 19910713Sandreas.hansson@arm.com * re-issue a sendTimingSnoopResp. 2008975Sandreas.hansson@arm.com * 2018975Sandreas.hansson@arm.com * @param pkt Packet to send. 2028948Sandreas.hansson@arm.com */ 2038975Sandreas.hansson@arm.com bool sendTimingSnoopResp(PacketPtr pkt); 2048922Swilliam.wang@arm.com 2058922Swilliam.wang@arm.com /** 2069087Sandreas.hansson@arm.com * Send a retry to the slave port that previously attempted a 20710713Sandreas.hansson@arm.com * sendTimingResp to this master port and failed. Note that this 20810713Sandreas.hansson@arm.com * is virtual so that the "fake" snoop response port in the 20910713Sandreas.hansson@arm.com * coherent crossbar can override the behaviour. 2109087Sandreas.hansson@arm.com */ 21110713Sandreas.hansson@arm.com virtual void sendRetryResp(); 2129087Sandreas.hansson@arm.com 2139087Sandreas.hansson@arm.com /** 2148922Swilliam.wang@arm.com * Determine if this master port is snooping or not. The default 2158711Sandreas.hansson@arm.com * implementation returns false and thus tells the neighbour we 2168922Swilliam.wang@arm.com * are not snooping. Any master port that wants to receive snoop 2178922Swilliam.wang@arm.com * requests (e.g. a cache connected to a bus) has to override this 2188922Swilliam.wang@arm.com * function. 2198711Sandreas.hansson@arm.com * 2208711Sandreas.hansson@arm.com * @return true if the port should be considered a snooper 2218711Sandreas.hansson@arm.com */ 2228922Swilliam.wang@arm.com virtual bool isSnooping() const { return false; } 2232381SN/A 2248711Sandreas.hansson@arm.com /** 2259089Sandreas.hansson@arm.com * Get the address ranges of the connected slave port. 2269089Sandreas.hansson@arm.com */ 2279089Sandreas.hansson@arm.com AddrRangeList getAddrRanges() const; 2289089Sandreas.hansson@arm.com 2295314Sstever@gmail.com /** Inject a PrintReq for the given address to print the state of 2305314Sstever@gmail.com * that address throughout the memory system. For debugging. 2315314Sstever@gmail.com */ 2325314Sstever@gmail.com void printAddr(Addr a); 2338975Sandreas.hansson@arm.com 2348975Sandreas.hansson@arm.com protected: 2358975Sandreas.hansson@arm.com 2368975Sandreas.hansson@arm.com /** 2378975Sandreas.hansson@arm.com * Receive an atomic snoop request packet from the slave port. 2388975Sandreas.hansson@arm.com */ 2398975Sandreas.hansson@arm.com virtual Tick recvAtomicSnoop(PacketPtr pkt) 2408975Sandreas.hansson@arm.com { 2418975Sandreas.hansson@arm.com panic("%s was not expecting an atomic snoop request\n", name()); 2428975Sandreas.hansson@arm.com return 0; 2438975Sandreas.hansson@arm.com } 2448975Sandreas.hansson@arm.com 2458975Sandreas.hansson@arm.com /** 2468975Sandreas.hansson@arm.com * Receive a functional snoop request packet from the slave port. 2478975Sandreas.hansson@arm.com */ 2488975Sandreas.hansson@arm.com virtual void recvFunctionalSnoop(PacketPtr pkt) 2498975Sandreas.hansson@arm.com { 2508975Sandreas.hansson@arm.com panic("%s was not expecting a functional snoop request\n", name()); 2518975Sandreas.hansson@arm.com } 2528975Sandreas.hansson@arm.com 2538975Sandreas.hansson@arm.com /** 2548975Sandreas.hansson@arm.com * Receive a timing response from the slave port. 2558975Sandreas.hansson@arm.com */ 2568975Sandreas.hansson@arm.com virtual bool recvTimingResp(PacketPtr pkt) = 0; 2578975Sandreas.hansson@arm.com 2588975Sandreas.hansson@arm.com /** 2598975Sandreas.hansson@arm.com * Receive a timing snoop request from the slave port. 2608975Sandreas.hansson@arm.com */ 2618975Sandreas.hansson@arm.com virtual void recvTimingSnoopReq(PacketPtr pkt) 2628975Sandreas.hansson@arm.com { 2638975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop request\n", name()); 2648975Sandreas.hansson@arm.com } 2658975Sandreas.hansson@arm.com 2668975Sandreas.hansson@arm.com /** 26710713Sandreas.hansson@arm.com * Called by the slave port if sendTimingReq was called on this 26810713Sandreas.hansson@arm.com * master port (causing recvTimingReq to be called on the slave 26910713Sandreas.hansson@arm.com * port) and was unsuccesful. 2709087Sandreas.hansson@arm.com */ 27110713Sandreas.hansson@arm.com virtual void recvReqRetry() = 0; 27210713Sandreas.hansson@arm.com 27310713Sandreas.hansson@arm.com /** 27410713Sandreas.hansson@arm.com * Called by the slave port if sendTimingSnoopResp was called on this 27510713Sandreas.hansson@arm.com * master port (causing recvTimingSnoopResp to be called on the slave 27610713Sandreas.hansson@arm.com * port) and was unsuccesful. 27710713Sandreas.hansson@arm.com */ 27810713Sandreas.hansson@arm.com virtual void recvRetrySnoopResp() 27910713Sandreas.hansson@arm.com { 28010713Sandreas.hansson@arm.com panic("%s was not expecting a snoop retry\n", name()); 28110713Sandreas.hansson@arm.com } 2829087Sandreas.hansson@arm.com 2839087Sandreas.hansson@arm.com /** 2848975Sandreas.hansson@arm.com * Called to receive an address range change from the peer slave 2859325Sandreas.hansson@arm.com * port. The default implementation ignores the change and does 2868975Sandreas.hansson@arm.com * nothing. Override this function in a derived class if the owner 2879325Sandreas.hansson@arm.com * needs to be aware of the address ranges, e.g. in an 2888975Sandreas.hansson@arm.com * interconnect component like a bus. 2898975Sandreas.hansson@arm.com */ 2908975Sandreas.hansson@arm.com virtual void recvRangeChange() { } 2912381SN/A}; 2922381SN/A 2938922Swilliam.wang@arm.com/** 2948922Swilliam.wang@arm.com * A SlavePort is a specialisation of a port. In addition to the 2958922Swilliam.wang@arm.com * basic functionality of sending packets to its master peer, it also 2968922Swilliam.wang@arm.com * has functions specific to a slave, e.g. to send range changes 2978922Swilliam.wang@arm.com * and get the address ranges that the port responds to. 2988922Swilliam.wang@arm.com */ 2999294Sandreas.hansson@arm.comclass SlavePort : public BaseSlavePort 3008922Swilliam.wang@arm.com{ 3018922Swilliam.wang@arm.com 3028975Sandreas.hansson@arm.com friend class MasterPort; 3038975Sandreas.hansson@arm.com 3048922Swilliam.wang@arm.com private: 3058922Swilliam.wang@arm.com 3068922Swilliam.wang@arm.com MasterPort* _masterPort; 3078922Swilliam.wang@arm.com 30813769Sgabeblack@google.com protected: 30913769Sgabeblack@google.com 31013769Sgabeblack@google.com MemObject& owner; 31113769Sgabeblack@google.com 3128922Swilliam.wang@arm.com public: 3138922Swilliam.wang@arm.com 31413769Sgabeblack@google.com SlavePort(const std::string& name, MemObject* _owner, 31513769Sgabeblack@google.com PortID id=InvalidPortID); 3168922Swilliam.wang@arm.com virtual ~SlavePort(); 3178922Swilliam.wang@arm.com 3188922Swilliam.wang@arm.com /** 3198948Sandreas.hansson@arm.com * Send an atomic snoop request packet, where the data is moved 3208948Sandreas.hansson@arm.com * and the state is updated in zero time, without interleaving 3218948Sandreas.hansson@arm.com * with other memory accesses. 3228948Sandreas.hansson@arm.com * 3238948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3248948Sandreas.hansson@arm.com * 3258948Sandreas.hansson@arm.com * @return Estimated latency of access. 3268948Sandreas.hansson@arm.com */ 3278948Sandreas.hansson@arm.com Tick sendAtomicSnoop(PacketPtr pkt); 3288948Sandreas.hansson@arm.com 3298948Sandreas.hansson@arm.com /** 3308948Sandreas.hansson@arm.com * Send a functional snoop request packet, where the data is 3318948Sandreas.hansson@arm.com * instantly updated everywhere in the memory system, without 3328948Sandreas.hansson@arm.com * affecting the current state of any block or moving the block. 3338948Sandreas.hansson@arm.com * 3348948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3358948Sandreas.hansson@arm.com */ 3368948Sandreas.hansson@arm.com void sendFunctionalSnoop(PacketPtr pkt); 3378948Sandreas.hansson@arm.com 3388948Sandreas.hansson@arm.com /** 3398975Sandreas.hansson@arm.com * Attempt to send a timing response to the master port by calling 3408975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 3418975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 34210713Sandreas.hansson@arm.com * wait for a recvRespRetry at which point it can re-issue a 3438975Sandreas.hansson@arm.com * sendTimingResp. 3448975Sandreas.hansson@arm.com * 3458975Sandreas.hansson@arm.com * @param pkt Packet to send. 3468975Sandreas.hansson@arm.com * 3478975Sandreas.hansson@arm.com * @return If the send was succesful or not. 3488975Sandreas.hansson@arm.com */ 3498975Sandreas.hansson@arm.com bool sendTimingResp(PacketPtr pkt); 3508948Sandreas.hansson@arm.com 3518948Sandreas.hansson@arm.com /** 3528975Sandreas.hansson@arm.com * Attempt to send a timing snoop request packet to the master port 3538975Sandreas.hansson@arm.com * by calling its corresponding receive function. Snoop requests 3548975Sandreas.hansson@arm.com * always succeed and hence no return value is needed. 3558975Sandreas.hansson@arm.com * 3568975Sandreas.hansson@arm.com * @param pkt Packet to send. 3578948Sandreas.hansson@arm.com */ 3588975Sandreas.hansson@arm.com void sendTimingSnoopReq(PacketPtr pkt); 3598948Sandreas.hansson@arm.com 3608948Sandreas.hansson@arm.com /** 3619087Sandreas.hansson@arm.com * Send a retry to the master port that previously attempted a 36210713Sandreas.hansson@arm.com * sendTimingReq to this slave port and failed. 3639087Sandreas.hansson@arm.com */ 36410713Sandreas.hansson@arm.com void sendRetryReq(); 36510713Sandreas.hansson@arm.com 36610713Sandreas.hansson@arm.com /** 36710713Sandreas.hansson@arm.com * Send a retry to the master port that previously attempted a 36810713Sandreas.hansson@arm.com * sendTimingSnoopResp to this slave port and failed. 36910713Sandreas.hansson@arm.com */ 37010713Sandreas.hansson@arm.com void sendRetrySnoopResp(); 3719087Sandreas.hansson@arm.com 3729087Sandreas.hansson@arm.com /** 3739088Sandreas.hansson@arm.com * Find out if the peer master port is snooping or not. 3749088Sandreas.hansson@arm.com * 3759088Sandreas.hansson@arm.com * @return true if the peer master port is snooping 3769088Sandreas.hansson@arm.com */ 3779088Sandreas.hansson@arm.com bool isSnooping() const { return _masterPort->isSnooping(); } 3789088Sandreas.hansson@arm.com 3799088Sandreas.hansson@arm.com /** 3808922Swilliam.wang@arm.com * Called by the owner to send a range change 3818922Swilliam.wang@arm.com */ 38210413SCurtis.Dunham@arm.com void sendRangeChange() const { 38310413SCurtis.Dunham@arm.com if (!_masterPort) 38410413SCurtis.Dunham@arm.com fatal("%s cannot sendRangeChange() without master port", name()); 38510413SCurtis.Dunham@arm.com _masterPort->recvRangeChange(); 38610413SCurtis.Dunham@arm.com } 3878922Swilliam.wang@arm.com 3888922Swilliam.wang@arm.com /** 3898922Swilliam.wang@arm.com * Get a list of the non-overlapping address ranges the owner is 3908922Swilliam.wang@arm.com * responsible for. All slave ports must override this function 3918922Swilliam.wang@arm.com * and return a populated list with at least one item. 3928922Swilliam.wang@arm.com * 3938922Swilliam.wang@arm.com * @return a list of ranges responded to 3948922Swilliam.wang@arm.com */ 3959090Sandreas.hansson@arm.com virtual AddrRangeList getAddrRanges() const = 0; 3968975Sandreas.hansson@arm.com 3978975Sandreas.hansson@arm.com protected: 3988975Sandreas.hansson@arm.com 3998975Sandreas.hansson@arm.com /** 4009178Sandreas.hansson@arm.com * Called by the master port to unbind. Should never be called 4019178Sandreas.hansson@arm.com * directly. 4029178Sandreas.hansson@arm.com */ 4039178Sandreas.hansson@arm.com void unbind(); 4049178Sandreas.hansson@arm.com 4059178Sandreas.hansson@arm.com /** 4069178Sandreas.hansson@arm.com * Called by the master port to bind. Should never be called 4079178Sandreas.hansson@arm.com * directly. 4089178Sandreas.hansson@arm.com */ 4099178Sandreas.hansson@arm.com void bind(MasterPort& master_port); 4109178Sandreas.hansson@arm.com 4119178Sandreas.hansson@arm.com /** 4128975Sandreas.hansson@arm.com * Receive an atomic request packet from the master port. 4138975Sandreas.hansson@arm.com */ 4148975Sandreas.hansson@arm.com virtual Tick recvAtomic(PacketPtr pkt) = 0; 4158975Sandreas.hansson@arm.com 4168975Sandreas.hansson@arm.com /** 4178975Sandreas.hansson@arm.com * Receive a functional request packet from the master port. 4188975Sandreas.hansson@arm.com */ 4198975Sandreas.hansson@arm.com virtual void recvFunctional(PacketPtr pkt) = 0; 4208975Sandreas.hansson@arm.com 4218975Sandreas.hansson@arm.com /** 4228975Sandreas.hansson@arm.com * Receive a timing request from the master port. 4238975Sandreas.hansson@arm.com */ 4248975Sandreas.hansson@arm.com virtual bool recvTimingReq(PacketPtr pkt) = 0; 4258975Sandreas.hansson@arm.com 4268975Sandreas.hansson@arm.com /** 42712342Snikos.nikoleris@arm.com * Availability request from the master port. 42812342Snikos.nikoleris@arm.com */ 42912342Snikos.nikoleris@arm.com virtual bool tryTiming(PacketPtr pkt) { 43012342Snikos.nikoleris@arm.com panic("%s was not expecting a %s\n", name(), __func__); 43112342Snikos.nikoleris@arm.com } 43212342Snikos.nikoleris@arm.com 43312342Snikos.nikoleris@arm.com /** 4348975Sandreas.hansson@arm.com * Receive a timing snoop response from the master port. 4358975Sandreas.hansson@arm.com */ 4368975Sandreas.hansson@arm.com virtual bool recvTimingSnoopResp(PacketPtr pkt) 4378975Sandreas.hansson@arm.com { 4388975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop response\n", name()); 4398975Sandreas.hansson@arm.com } 4408975Sandreas.hansson@arm.com 4419087Sandreas.hansson@arm.com /** 4429087Sandreas.hansson@arm.com * Called by the master port if sendTimingResp was called on this 4439087Sandreas.hansson@arm.com * slave port (causing recvTimingResp to be called on the master 4449087Sandreas.hansson@arm.com * port) and was unsuccesful. 4459087Sandreas.hansson@arm.com */ 44610713Sandreas.hansson@arm.com virtual void recvRespRetry() = 0; 4479087Sandreas.hansson@arm.com 4488922Swilliam.wang@arm.com}; 4498922Swilliam.wang@arm.com 4502381SN/A#endif //__MEM_PORT_HH__ 451