port.hh revision 9090
12381SN/A/* 28853Sandreas.hansson@arm.com * Copyright (c) 2011-2012 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 532381SN/A#include <list> 542381SN/A 552381SN/A#include "base/range.hh" 562381SN/A#include "mem/packet.hh" 572381SN/A 588922Swilliam.wang@arm.com/** 598922Swilliam.wang@arm.com * This typedef is used to clean up getAddrRanges(). It's declared 602407SN/A * outside the Port object since it's also used by some mem objects. 612407SN/A * Eventually we should move this typedef to wherever Addr is 622407SN/A * defined. 632407SN/A */ 642407SN/A 652407SN/Atypedef std::list<Range<Addr> > AddrRangeList; 662521SN/Atypedef std::list<Range<Addr> >::iterator AddrRangeIter; 679090Sandreas.hansson@arm.comtypedef std::list<Range<Addr> >::const_iterator AddrRangeConstIter; 682407SN/A 693401Sktlim@umich.educlass MemObject; 703401Sktlim@umich.edu 712381SN/A/** 728922Swilliam.wang@arm.com * Ports are used to interface memory objects to each other. A port is 738922Swilliam.wang@arm.com * either a master or a slave and the connected peer is always of the 749087Sandreas.hansson@arm.com * opposite role. Each port has a name, an owner, and an identifier. 752381SN/A */ 768708Sandreas.hansson@arm.comclass Port 772381SN/A{ 788922Swilliam.wang@arm.com 798922Swilliam.wang@arm.com private: 808922Swilliam.wang@arm.com 818922Swilliam.wang@arm.com /** Descriptive name (for DPRINTF output) */ 828922Swilliam.wang@arm.com std::string portName; 838922Swilliam.wang@arm.com 845476Snate@binkert.org protected: 852640Sstever@eecs.umich.edu 868965Sandreas.hansson@arm.com /** 878965Sandreas.hansson@arm.com * A numeric identifier to distinguish ports in a vector, and set 889031Sandreas.hansson@arm.com * to InvalidPortID in case this port is not part of a vector. 898965Sandreas.hansson@arm.com */ 909031Sandreas.hansson@arm.com const PortID id; 918965Sandreas.hansson@arm.com 928922Swilliam.wang@arm.com /** A reference to the MemObject that owns this port. */ 938922Swilliam.wang@arm.com MemObject& owner; 948922Swilliam.wang@arm.com 958922Swilliam.wang@arm.com /** 968922Swilliam.wang@arm.com * Abstract base class for ports 978922Swilliam.wang@arm.com * 988922Swilliam.wang@arm.com * @param _name Port name including the owners name 998922Swilliam.wang@arm.com * @param _owner The MemObject that is the structural owner of this port 1008965Sandreas.hansson@arm.com * @param _id A port identifier for vector ports 1018922Swilliam.wang@arm.com */ 1029031Sandreas.hansson@arm.com Port(const std::string& _name, MemObject& _owner, PortID _id); 1038922Swilliam.wang@arm.com 1048922Swilliam.wang@arm.com /** 1058922Swilliam.wang@arm.com * Virtual destructor due to inheritance. 1068922Swilliam.wang@arm.com */ 1078922Swilliam.wang@arm.com virtual ~Port(); 1083401Sktlim@umich.edu 1092381SN/A public: 1102640Sstever@eecs.umich.edu 1112640Sstever@eecs.umich.edu /** Return port name (for DPRINTF). */ 1128922Swilliam.wang@arm.com const std::string name() const { return portName; } 1134190Ssaidi@eecs.umich.edu 1148965Sandreas.hansson@arm.com /** Get the port id. */ 1159031Sandreas.hansson@arm.com PortID getId() const { return id; } 1168965Sandreas.hansson@arm.com 1178922Swilliam.wang@arm.com}; 1188922Swilliam.wang@arm.com 1198922Swilliam.wang@arm.com/** Forward declaration */ 1208922Swilliam.wang@arm.comclass SlavePort; 1218922Swilliam.wang@arm.com 1228922Swilliam.wang@arm.com/** 1238922Swilliam.wang@arm.com * A MasterPort is a specialisation of a port. In addition to the 1248922Swilliam.wang@arm.com * basic functionality of sending packets to its slave peer, it also 1258922Swilliam.wang@arm.com * has functions specific to a master, e.g. to receive range changes 1268922Swilliam.wang@arm.com * or determine if the port is snooping or not. 1278922Swilliam.wang@arm.com */ 1288922Swilliam.wang@arm.comclass MasterPort : public Port 1298922Swilliam.wang@arm.com{ 1308922Swilliam.wang@arm.com 1318975Sandreas.hansson@arm.com friend class SlavePort; 1328975Sandreas.hansson@arm.com 1338922Swilliam.wang@arm.com private: 1348922Swilliam.wang@arm.com 1358922Swilliam.wang@arm.com SlavePort* _slavePort; 1368922Swilliam.wang@arm.com 1378922Swilliam.wang@arm.com public: 1388922Swilliam.wang@arm.com 1398965Sandreas.hansson@arm.com MasterPort(const std::string& name, MemObject* owner, 1409031Sandreas.hansson@arm.com PortID id = InvalidPortID); 1418922Swilliam.wang@arm.com virtual ~MasterPort(); 1428922Swilliam.wang@arm.com 1438922Swilliam.wang@arm.com void bind(SlavePort& slave_port); 1448922Swilliam.wang@arm.com SlavePort& getSlavePort() const; 1458922Swilliam.wang@arm.com bool isConnected() const; 1468922Swilliam.wang@arm.com 1478922Swilliam.wang@arm.com /** 1488948Sandreas.hansson@arm.com * Send an atomic request packet, where the data is moved and the 1498948Sandreas.hansson@arm.com * state is updated in zero time, without interleaving with other 1508948Sandreas.hansson@arm.com * memory accesses. 1518948Sandreas.hansson@arm.com * 1528948Sandreas.hansson@arm.com * @param pkt Packet to send. 1538948Sandreas.hansson@arm.com * 1548948Sandreas.hansson@arm.com * @return Estimated latency of access. 1558948Sandreas.hansson@arm.com */ 1568948Sandreas.hansson@arm.com Tick sendAtomic(PacketPtr pkt); 1578948Sandreas.hansson@arm.com 1588948Sandreas.hansson@arm.com /** 1598948Sandreas.hansson@arm.com * Send a functional request packet, where the data is instantly 1608948Sandreas.hansson@arm.com * updated everywhere in the memory system, without affecting the 1618948Sandreas.hansson@arm.com * current state of any block or moving the block. 1628948Sandreas.hansson@arm.com * 1638948Sandreas.hansson@arm.com * @param pkt Packet to send. 1648948Sandreas.hansson@arm.com */ 1658948Sandreas.hansson@arm.com void sendFunctional(PacketPtr pkt); 1668948Sandreas.hansson@arm.com 1678948Sandreas.hansson@arm.com /** 1688975Sandreas.hansson@arm.com * Attempt to send a timing request to the slave port by calling 1698975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 1708975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 1718975Sandreas.hansson@arm.com * wait for a recvRetry at which point it can re-issue a 1728975Sandreas.hansson@arm.com * sendTimingReq. 1738975Sandreas.hansson@arm.com * 1748975Sandreas.hansson@arm.com * @param pkt Packet to send. 1758975Sandreas.hansson@arm.com * 1768975Sandreas.hansson@arm.com * @return If the send was succesful or not. 1778975Sandreas.hansson@arm.com */ 1788975Sandreas.hansson@arm.com bool sendTimingReq(PacketPtr pkt); 1798948Sandreas.hansson@arm.com 1808948Sandreas.hansson@arm.com /** 1818975Sandreas.hansson@arm.com * Attempt to send a timing snoop response packet to the slave 1828975Sandreas.hansson@arm.com * port by calling its corresponding receive function. If the send 1838975Sandreas.hansson@arm.com * does not succeed, as indicated by the return value, then the 1848975Sandreas.hansson@arm.com * sender must wait for a recvRetry at which point it can re-issue 1858975Sandreas.hansson@arm.com * a sendTimingSnoopResp. 1868975Sandreas.hansson@arm.com * 1878975Sandreas.hansson@arm.com * @param pkt Packet to send. 1888948Sandreas.hansson@arm.com */ 1898975Sandreas.hansson@arm.com bool sendTimingSnoopResp(PacketPtr pkt); 1908922Swilliam.wang@arm.com 1918922Swilliam.wang@arm.com /** 1929087Sandreas.hansson@arm.com * Send a retry to the slave port that previously attempted a 1939087Sandreas.hansson@arm.com * sendTimingResp to this master port and failed. 1949087Sandreas.hansson@arm.com */ 1959087Sandreas.hansson@arm.com void sendRetry(); 1969087Sandreas.hansson@arm.com 1979087Sandreas.hansson@arm.com /** 1988922Swilliam.wang@arm.com * Determine if this master port is snooping or not. The default 1998711Sandreas.hansson@arm.com * implementation returns false and thus tells the neighbour we 2008922Swilliam.wang@arm.com * are not snooping. Any master port that wants to receive snoop 2018922Swilliam.wang@arm.com * requests (e.g. a cache connected to a bus) has to override this 2028922Swilliam.wang@arm.com * function. 2038711Sandreas.hansson@arm.com * 2048711Sandreas.hansson@arm.com * @return true if the port should be considered a snooper 2058711Sandreas.hansson@arm.com */ 2068922Swilliam.wang@arm.com virtual bool isSnooping() const { return false; } 2072381SN/A 2088711Sandreas.hansson@arm.com /** 2098922Swilliam.wang@arm.com * Called by a peer port in order to determine the block size of 2108922Swilliam.wang@arm.com * the owner of this port. 2118711Sandreas.hansson@arm.com */ 2128922Swilliam.wang@arm.com virtual unsigned deviceBlockSize() const { return 0; } 2132381SN/A 2142381SN/A /** Called by the associated device if it wishes to find out the blocksize 2152381SN/A of the device on attached to the peer port. 2162381SN/A */ 2178922Swilliam.wang@arm.com unsigned peerBlockSize() const; 2182381SN/A 2199089Sandreas.hansson@arm.com /** 2209089Sandreas.hansson@arm.com * Get the address ranges of the connected slave port. 2219089Sandreas.hansson@arm.com */ 2229089Sandreas.hansson@arm.com AddrRangeList getAddrRanges() const; 2239089Sandreas.hansson@arm.com 2245314Sstever@gmail.com /** Inject a PrintReq for the given address to print the state of 2255314Sstever@gmail.com * that address throughout the memory system. For debugging. 2265314Sstever@gmail.com */ 2275314Sstever@gmail.com void printAddr(Addr a); 2288975Sandreas.hansson@arm.com 2298975Sandreas.hansson@arm.com protected: 2308975Sandreas.hansson@arm.com 2318975Sandreas.hansson@arm.com /** 2328975Sandreas.hansson@arm.com * Receive an atomic snoop request packet from the slave port. 2338975Sandreas.hansson@arm.com */ 2348975Sandreas.hansson@arm.com virtual Tick recvAtomicSnoop(PacketPtr pkt) 2358975Sandreas.hansson@arm.com { 2368975Sandreas.hansson@arm.com panic("%s was not expecting an atomic snoop request\n", name()); 2378975Sandreas.hansson@arm.com return 0; 2388975Sandreas.hansson@arm.com } 2398975Sandreas.hansson@arm.com 2408975Sandreas.hansson@arm.com /** 2418975Sandreas.hansson@arm.com * Receive a functional snoop request packet from the slave port. 2428975Sandreas.hansson@arm.com */ 2438975Sandreas.hansson@arm.com virtual void recvFunctionalSnoop(PacketPtr pkt) 2448975Sandreas.hansson@arm.com { 2458975Sandreas.hansson@arm.com panic("%s was not expecting a functional snoop request\n", name()); 2468975Sandreas.hansson@arm.com } 2478975Sandreas.hansson@arm.com 2488975Sandreas.hansson@arm.com /** 2498975Sandreas.hansson@arm.com * Receive a timing response from the slave port. 2508975Sandreas.hansson@arm.com */ 2518975Sandreas.hansson@arm.com virtual bool recvTimingResp(PacketPtr pkt) = 0; 2528975Sandreas.hansson@arm.com 2538975Sandreas.hansson@arm.com /** 2548975Sandreas.hansson@arm.com * Receive a timing snoop request from the slave port. 2558975Sandreas.hansson@arm.com */ 2568975Sandreas.hansson@arm.com virtual void recvTimingSnoopReq(PacketPtr pkt) 2578975Sandreas.hansson@arm.com { 2588975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop request\n", name()); 2598975Sandreas.hansson@arm.com } 2608975Sandreas.hansson@arm.com 2618975Sandreas.hansson@arm.com /** 2629087Sandreas.hansson@arm.com * Called by the slave port if sendTimingReq or 2639087Sandreas.hansson@arm.com * sendTimingSnoopResp was called on this master port (causing 2649087Sandreas.hansson@arm.com * recvTimingReq and recvTimingSnoopResp to be called on the 2659087Sandreas.hansson@arm.com * slave port) and was unsuccesful. 2669087Sandreas.hansson@arm.com */ 2679087Sandreas.hansson@arm.com virtual void recvRetry() = 0; 2689087Sandreas.hansson@arm.com 2699087Sandreas.hansson@arm.com /** 2708975Sandreas.hansson@arm.com * Called to receive an address range change from the peer slave 2718975Sandreas.hansson@arm.com * port. the default implementation ignored the change and does 2728975Sandreas.hansson@arm.com * nothing. Override this function in a derived class if the owner 2738975Sandreas.hansson@arm.com * needs to be aware of he laesddress ranges, e.g. in an 2748975Sandreas.hansson@arm.com * interconnect component like a bus. 2758975Sandreas.hansson@arm.com */ 2768975Sandreas.hansson@arm.com virtual void recvRangeChange() { } 2772381SN/A}; 2782381SN/A 2798922Swilliam.wang@arm.com/** 2808922Swilliam.wang@arm.com * A SlavePort is a specialisation of a port. In addition to the 2818922Swilliam.wang@arm.com * basic functionality of sending packets to its master peer, it also 2828922Swilliam.wang@arm.com * has functions specific to a slave, e.g. to send range changes 2838922Swilliam.wang@arm.com * and get the address ranges that the port responds to. 2848922Swilliam.wang@arm.com */ 2858922Swilliam.wang@arm.comclass SlavePort : public Port 2868922Swilliam.wang@arm.com{ 2878922Swilliam.wang@arm.com 2888975Sandreas.hansson@arm.com friend class MasterPort; 2898975Sandreas.hansson@arm.com 2908922Swilliam.wang@arm.com private: 2918922Swilliam.wang@arm.com 2928922Swilliam.wang@arm.com MasterPort* _masterPort; 2938922Swilliam.wang@arm.com 2948922Swilliam.wang@arm.com public: 2958922Swilliam.wang@arm.com 2968965Sandreas.hansson@arm.com SlavePort(const std::string& name, MemObject* owner, 2979031Sandreas.hansson@arm.com PortID id = InvalidPortID); 2988922Swilliam.wang@arm.com virtual ~SlavePort(); 2998922Swilliam.wang@arm.com 3008922Swilliam.wang@arm.com void bind(MasterPort& master_port); 3018922Swilliam.wang@arm.com MasterPort& getMasterPort() const; 3028922Swilliam.wang@arm.com bool isConnected() const; 3038922Swilliam.wang@arm.com 3048922Swilliam.wang@arm.com /** 3058948Sandreas.hansson@arm.com * Send an atomic snoop request packet, where the data is moved 3068948Sandreas.hansson@arm.com * and the state is updated in zero time, without interleaving 3078948Sandreas.hansson@arm.com * with other memory accesses. 3088948Sandreas.hansson@arm.com * 3098948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3108948Sandreas.hansson@arm.com * 3118948Sandreas.hansson@arm.com * @return Estimated latency of access. 3128948Sandreas.hansson@arm.com */ 3138948Sandreas.hansson@arm.com Tick sendAtomicSnoop(PacketPtr pkt); 3148948Sandreas.hansson@arm.com 3158948Sandreas.hansson@arm.com /** 3168948Sandreas.hansson@arm.com * Send a functional snoop request packet, where the data is 3178948Sandreas.hansson@arm.com * instantly updated everywhere in the memory system, without 3188948Sandreas.hansson@arm.com * affecting the current state of any block or moving the block. 3198948Sandreas.hansson@arm.com * 3208948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3218948Sandreas.hansson@arm.com */ 3228948Sandreas.hansson@arm.com void sendFunctionalSnoop(PacketPtr pkt); 3238948Sandreas.hansson@arm.com 3248948Sandreas.hansson@arm.com /** 3258975Sandreas.hansson@arm.com * Attempt to send a timing response to the master port by calling 3268975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 3278975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 3288975Sandreas.hansson@arm.com * wait for a recvRetry at which point it can re-issue a 3298975Sandreas.hansson@arm.com * sendTimingResp. 3308975Sandreas.hansson@arm.com * 3318975Sandreas.hansson@arm.com * @param pkt Packet to send. 3328975Sandreas.hansson@arm.com * 3338975Sandreas.hansson@arm.com * @return If the send was succesful or not. 3348975Sandreas.hansson@arm.com */ 3358975Sandreas.hansson@arm.com bool sendTimingResp(PacketPtr pkt); 3368948Sandreas.hansson@arm.com 3378948Sandreas.hansson@arm.com /** 3388975Sandreas.hansson@arm.com * Attempt to send a timing snoop request packet to the master port 3398975Sandreas.hansson@arm.com * by calling its corresponding receive function. Snoop requests 3408975Sandreas.hansson@arm.com * always succeed and hence no return value is needed. 3418975Sandreas.hansson@arm.com * 3428975Sandreas.hansson@arm.com * @param pkt Packet to send. 3438948Sandreas.hansson@arm.com */ 3448975Sandreas.hansson@arm.com void sendTimingSnoopReq(PacketPtr pkt); 3458948Sandreas.hansson@arm.com 3468948Sandreas.hansson@arm.com /** 3479087Sandreas.hansson@arm.com * Send a retry to the master port that previously attempted a 3489087Sandreas.hansson@arm.com * sendTimingReq or sendTimingSnoopResp to this slave port and 3499087Sandreas.hansson@arm.com * failed. 3509087Sandreas.hansson@arm.com */ 3519087Sandreas.hansson@arm.com void sendRetry(); 3529087Sandreas.hansson@arm.com 3539087Sandreas.hansson@arm.com /** 3548922Swilliam.wang@arm.com * Called by a peer port in order to determine the block size of 3558922Swilliam.wang@arm.com * the owner of this port. 3568922Swilliam.wang@arm.com */ 3578922Swilliam.wang@arm.com virtual unsigned deviceBlockSize() const { return 0; } 3588922Swilliam.wang@arm.com 3598922Swilliam.wang@arm.com /** Called by the associated device if it wishes to find out the blocksize 3608922Swilliam.wang@arm.com of the device on attached to the peer port. 3618922Swilliam.wang@arm.com */ 3628922Swilliam.wang@arm.com unsigned peerBlockSize() const; 3638922Swilliam.wang@arm.com 3648922Swilliam.wang@arm.com /** 3659088Sandreas.hansson@arm.com * Find out if the peer master port is snooping or not. 3669088Sandreas.hansson@arm.com * 3679088Sandreas.hansson@arm.com * @return true if the peer master port is snooping 3689088Sandreas.hansson@arm.com */ 3699088Sandreas.hansson@arm.com bool isSnooping() const { return _masterPort->isSnooping(); } 3709088Sandreas.hansson@arm.com 3719088Sandreas.hansson@arm.com /** 3728922Swilliam.wang@arm.com * Called by the owner to send a range change 3738922Swilliam.wang@arm.com */ 3748922Swilliam.wang@arm.com void sendRangeChange() const { _masterPort->recvRangeChange(); } 3758922Swilliam.wang@arm.com 3768922Swilliam.wang@arm.com /** 3778922Swilliam.wang@arm.com * Get a list of the non-overlapping address ranges the owner is 3788922Swilliam.wang@arm.com * responsible for. All slave ports must override this function 3798922Swilliam.wang@arm.com * and return a populated list with at least one item. 3808922Swilliam.wang@arm.com * 3818922Swilliam.wang@arm.com * @return a list of ranges responded to 3828922Swilliam.wang@arm.com */ 3839090Sandreas.hansson@arm.com virtual AddrRangeList getAddrRanges() const = 0; 3848975Sandreas.hansson@arm.com 3858975Sandreas.hansson@arm.com protected: 3868975Sandreas.hansson@arm.com 3878975Sandreas.hansson@arm.com /** 3888975Sandreas.hansson@arm.com * Receive an atomic request packet from the master port. 3898975Sandreas.hansson@arm.com */ 3908975Sandreas.hansson@arm.com virtual Tick recvAtomic(PacketPtr pkt) = 0; 3918975Sandreas.hansson@arm.com 3928975Sandreas.hansson@arm.com /** 3938975Sandreas.hansson@arm.com * Receive a functional request packet from the master port. 3948975Sandreas.hansson@arm.com */ 3958975Sandreas.hansson@arm.com virtual void recvFunctional(PacketPtr pkt) = 0; 3968975Sandreas.hansson@arm.com 3978975Sandreas.hansson@arm.com /** 3988975Sandreas.hansson@arm.com * Receive a timing request from the master port. 3998975Sandreas.hansson@arm.com */ 4008975Sandreas.hansson@arm.com virtual bool recvTimingReq(PacketPtr pkt) = 0; 4018975Sandreas.hansson@arm.com 4028975Sandreas.hansson@arm.com /** 4038975Sandreas.hansson@arm.com * Receive a timing snoop response from the master port. 4048975Sandreas.hansson@arm.com */ 4058975Sandreas.hansson@arm.com virtual bool recvTimingSnoopResp(PacketPtr pkt) 4068975Sandreas.hansson@arm.com { 4078975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop response\n", name()); 4088975Sandreas.hansson@arm.com } 4098975Sandreas.hansson@arm.com 4109087Sandreas.hansson@arm.com /** 4119087Sandreas.hansson@arm.com * Called by the master port if sendTimingResp was called on this 4129087Sandreas.hansson@arm.com * slave port (causing recvTimingResp to be called on the master 4139087Sandreas.hansson@arm.com * port) and was unsuccesful. 4149087Sandreas.hansson@arm.com */ 4159087Sandreas.hansson@arm.com virtual void recvRetry() = 0; 4169087Sandreas.hansson@arm.com 4178922Swilliam.wang@arm.com}; 4188922Swilliam.wang@arm.com 4192381SN/A#endif //__MEM_PORT_HH__ 420