port.hh revision 9178
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 1439178Sandreas.hansson@arm.com /** 1449178Sandreas.hansson@arm.com * Bind this master port to a slave port. This also does the 1459178Sandreas.hansson@arm.com * mirror action and binds the slave port to the master port. 1469178Sandreas.hansson@arm.com */ 1478922Swilliam.wang@arm.com void bind(SlavePort& slave_port); 1489178Sandreas.hansson@arm.com 1499178Sandreas.hansson@arm.com /** 1509178Sandreas.hansson@arm.com * Unbind this master port and the associated slave port. 1519178Sandreas.hansson@arm.com */ 1529178Sandreas.hansson@arm.com void unbind(); 1539178Sandreas.hansson@arm.com 1548922Swilliam.wang@arm.com SlavePort& getSlavePort() const; 1558922Swilliam.wang@arm.com bool isConnected() const; 1568922Swilliam.wang@arm.com 1578922Swilliam.wang@arm.com /** 1588948Sandreas.hansson@arm.com * Send an atomic request packet, where the data is moved and the 1598948Sandreas.hansson@arm.com * state is updated in zero time, without interleaving with other 1608948Sandreas.hansson@arm.com * memory accesses. 1618948Sandreas.hansson@arm.com * 1628948Sandreas.hansson@arm.com * @param pkt Packet to send. 1638948Sandreas.hansson@arm.com * 1648948Sandreas.hansson@arm.com * @return Estimated latency of access. 1658948Sandreas.hansson@arm.com */ 1668948Sandreas.hansson@arm.com Tick sendAtomic(PacketPtr pkt); 1678948Sandreas.hansson@arm.com 1688948Sandreas.hansson@arm.com /** 1698948Sandreas.hansson@arm.com * Send a functional request packet, where the data is instantly 1708948Sandreas.hansson@arm.com * updated everywhere in the memory system, without affecting the 1718948Sandreas.hansson@arm.com * current state of any block or moving the block. 1728948Sandreas.hansson@arm.com * 1738948Sandreas.hansson@arm.com * @param pkt Packet to send. 1748948Sandreas.hansson@arm.com */ 1758948Sandreas.hansson@arm.com void sendFunctional(PacketPtr pkt); 1768948Sandreas.hansson@arm.com 1778948Sandreas.hansson@arm.com /** 1788975Sandreas.hansson@arm.com * Attempt to send a timing request to the slave port by calling 1798975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 1808975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 1818975Sandreas.hansson@arm.com * wait for a recvRetry at which point it can re-issue a 1828975Sandreas.hansson@arm.com * sendTimingReq. 1838975Sandreas.hansson@arm.com * 1848975Sandreas.hansson@arm.com * @param pkt Packet to send. 1858975Sandreas.hansson@arm.com * 1868975Sandreas.hansson@arm.com * @return If the send was succesful or not. 1878975Sandreas.hansson@arm.com */ 1888975Sandreas.hansson@arm.com bool sendTimingReq(PacketPtr pkt); 1898948Sandreas.hansson@arm.com 1908948Sandreas.hansson@arm.com /** 1918975Sandreas.hansson@arm.com * Attempt to send a timing snoop response packet to the slave 1928975Sandreas.hansson@arm.com * port by calling its corresponding receive function. If the send 1938975Sandreas.hansson@arm.com * does not succeed, as indicated by the return value, then the 1948975Sandreas.hansson@arm.com * sender must wait for a recvRetry at which point it can re-issue 1958975Sandreas.hansson@arm.com * a sendTimingSnoopResp. 1968975Sandreas.hansson@arm.com * 1978975Sandreas.hansson@arm.com * @param pkt Packet to send. 1988948Sandreas.hansson@arm.com */ 1998975Sandreas.hansson@arm.com bool sendTimingSnoopResp(PacketPtr pkt); 2008922Swilliam.wang@arm.com 2018922Swilliam.wang@arm.com /** 2029087Sandreas.hansson@arm.com * Send a retry to the slave port that previously attempted a 2039087Sandreas.hansson@arm.com * sendTimingResp to this master port and failed. 2049087Sandreas.hansson@arm.com */ 2059087Sandreas.hansson@arm.com void sendRetry(); 2069087Sandreas.hansson@arm.com 2079087Sandreas.hansson@arm.com /** 2088922Swilliam.wang@arm.com * Determine if this master port is snooping or not. The default 2098711Sandreas.hansson@arm.com * implementation returns false and thus tells the neighbour we 2108922Swilliam.wang@arm.com * are not snooping. Any master port that wants to receive snoop 2118922Swilliam.wang@arm.com * requests (e.g. a cache connected to a bus) has to override this 2128922Swilliam.wang@arm.com * function. 2138711Sandreas.hansson@arm.com * 2148711Sandreas.hansson@arm.com * @return true if the port should be considered a snooper 2158711Sandreas.hansson@arm.com */ 2168922Swilliam.wang@arm.com virtual bool isSnooping() const { return false; } 2172381SN/A 2188711Sandreas.hansson@arm.com /** 2198922Swilliam.wang@arm.com * Called by a peer port in order to determine the block size of 2208922Swilliam.wang@arm.com * the owner of this port. 2218711Sandreas.hansson@arm.com */ 2228922Swilliam.wang@arm.com virtual unsigned deviceBlockSize() const { return 0; } 2232381SN/A 2242381SN/A /** Called by the associated device if it wishes to find out the blocksize 2252381SN/A of the device on attached to the peer port. 2262381SN/A */ 2278922Swilliam.wang@arm.com unsigned peerBlockSize() const; 2282381SN/A 2299089Sandreas.hansson@arm.com /** 2309089Sandreas.hansson@arm.com * Get the address ranges of the connected slave port. 2319089Sandreas.hansson@arm.com */ 2329089Sandreas.hansson@arm.com AddrRangeList getAddrRanges() const; 2339089Sandreas.hansson@arm.com 2345314Sstever@gmail.com /** Inject a PrintReq for the given address to print the state of 2355314Sstever@gmail.com * that address throughout the memory system. For debugging. 2365314Sstever@gmail.com */ 2375314Sstever@gmail.com void printAddr(Addr a); 2388975Sandreas.hansson@arm.com 2398975Sandreas.hansson@arm.com protected: 2408975Sandreas.hansson@arm.com 2418975Sandreas.hansson@arm.com /** 2428975Sandreas.hansson@arm.com * Receive an atomic snoop request packet from the slave port. 2438975Sandreas.hansson@arm.com */ 2448975Sandreas.hansson@arm.com virtual Tick recvAtomicSnoop(PacketPtr pkt) 2458975Sandreas.hansson@arm.com { 2468975Sandreas.hansson@arm.com panic("%s was not expecting an atomic snoop request\n", name()); 2478975Sandreas.hansson@arm.com return 0; 2488975Sandreas.hansson@arm.com } 2498975Sandreas.hansson@arm.com 2508975Sandreas.hansson@arm.com /** 2518975Sandreas.hansson@arm.com * Receive a functional snoop request packet from the slave port. 2528975Sandreas.hansson@arm.com */ 2538975Sandreas.hansson@arm.com virtual void recvFunctionalSnoop(PacketPtr pkt) 2548975Sandreas.hansson@arm.com { 2558975Sandreas.hansson@arm.com panic("%s was not expecting a functional snoop request\n", name()); 2568975Sandreas.hansson@arm.com } 2578975Sandreas.hansson@arm.com 2588975Sandreas.hansson@arm.com /** 2598975Sandreas.hansson@arm.com * Receive a timing response from the slave port. 2608975Sandreas.hansson@arm.com */ 2618975Sandreas.hansson@arm.com virtual bool recvTimingResp(PacketPtr pkt) = 0; 2628975Sandreas.hansson@arm.com 2638975Sandreas.hansson@arm.com /** 2648975Sandreas.hansson@arm.com * Receive a timing snoop request from the slave port. 2658975Sandreas.hansson@arm.com */ 2668975Sandreas.hansson@arm.com virtual void recvTimingSnoopReq(PacketPtr pkt) 2678975Sandreas.hansson@arm.com { 2688975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop request\n", name()); 2698975Sandreas.hansson@arm.com } 2708975Sandreas.hansson@arm.com 2718975Sandreas.hansson@arm.com /** 2729087Sandreas.hansson@arm.com * Called by the slave port if sendTimingReq or 2739087Sandreas.hansson@arm.com * sendTimingSnoopResp was called on this master port (causing 2749087Sandreas.hansson@arm.com * recvTimingReq and recvTimingSnoopResp to be called on the 2759087Sandreas.hansson@arm.com * slave port) and was unsuccesful. 2769087Sandreas.hansson@arm.com */ 2779087Sandreas.hansson@arm.com virtual void recvRetry() = 0; 2789087Sandreas.hansson@arm.com 2799087Sandreas.hansson@arm.com /** 2808975Sandreas.hansson@arm.com * Called to receive an address range change from the peer slave 2818975Sandreas.hansson@arm.com * port. the default implementation ignored the change and does 2828975Sandreas.hansson@arm.com * nothing. Override this function in a derived class if the owner 2838975Sandreas.hansson@arm.com * needs to be aware of he laesddress ranges, e.g. in an 2848975Sandreas.hansson@arm.com * interconnect component like a bus. 2858975Sandreas.hansson@arm.com */ 2868975Sandreas.hansson@arm.com virtual void recvRangeChange() { } 2872381SN/A}; 2882381SN/A 2898922Swilliam.wang@arm.com/** 2908922Swilliam.wang@arm.com * A SlavePort is a specialisation of a port. In addition to the 2918922Swilliam.wang@arm.com * basic functionality of sending packets to its master peer, it also 2928922Swilliam.wang@arm.com * has functions specific to a slave, e.g. to send range changes 2938922Swilliam.wang@arm.com * and get the address ranges that the port responds to. 2948922Swilliam.wang@arm.com */ 2958922Swilliam.wang@arm.comclass SlavePort : public Port 2968922Swilliam.wang@arm.com{ 2978922Swilliam.wang@arm.com 2988975Sandreas.hansson@arm.com friend class MasterPort; 2998975Sandreas.hansson@arm.com 3008922Swilliam.wang@arm.com private: 3018922Swilliam.wang@arm.com 3028922Swilliam.wang@arm.com MasterPort* _masterPort; 3038922Swilliam.wang@arm.com 3048922Swilliam.wang@arm.com public: 3058922Swilliam.wang@arm.com 3068965Sandreas.hansson@arm.com SlavePort(const std::string& name, MemObject* owner, 3079031Sandreas.hansson@arm.com PortID id = InvalidPortID); 3088922Swilliam.wang@arm.com virtual ~SlavePort(); 3098922Swilliam.wang@arm.com 3108922Swilliam.wang@arm.com MasterPort& getMasterPort() const; 3118922Swilliam.wang@arm.com bool isConnected() const; 3128922Swilliam.wang@arm.com 3138922Swilliam.wang@arm.com /** 3148948Sandreas.hansson@arm.com * Send an atomic snoop request packet, where the data is moved 3158948Sandreas.hansson@arm.com * and the state is updated in zero time, without interleaving 3168948Sandreas.hansson@arm.com * with other memory accesses. 3178948Sandreas.hansson@arm.com * 3188948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3198948Sandreas.hansson@arm.com * 3208948Sandreas.hansson@arm.com * @return Estimated latency of access. 3218948Sandreas.hansson@arm.com */ 3228948Sandreas.hansson@arm.com Tick sendAtomicSnoop(PacketPtr pkt); 3238948Sandreas.hansson@arm.com 3248948Sandreas.hansson@arm.com /** 3258948Sandreas.hansson@arm.com * Send a functional snoop request packet, where the data is 3268948Sandreas.hansson@arm.com * instantly updated everywhere in the memory system, without 3278948Sandreas.hansson@arm.com * affecting the current state of any block or moving the block. 3288948Sandreas.hansson@arm.com * 3298948Sandreas.hansson@arm.com * @param pkt Snoop packet to send. 3308948Sandreas.hansson@arm.com */ 3318948Sandreas.hansson@arm.com void sendFunctionalSnoop(PacketPtr pkt); 3328948Sandreas.hansson@arm.com 3338948Sandreas.hansson@arm.com /** 3348975Sandreas.hansson@arm.com * Attempt to send a timing response to the master port by calling 3358975Sandreas.hansson@arm.com * its corresponding receive function. If the send does not 3368975Sandreas.hansson@arm.com * succeed, as indicated by the return value, then the sender must 3378975Sandreas.hansson@arm.com * wait for a recvRetry at which point it can re-issue a 3388975Sandreas.hansson@arm.com * sendTimingResp. 3398975Sandreas.hansson@arm.com * 3408975Sandreas.hansson@arm.com * @param pkt Packet to send. 3418975Sandreas.hansson@arm.com * 3428975Sandreas.hansson@arm.com * @return If the send was succesful or not. 3438975Sandreas.hansson@arm.com */ 3448975Sandreas.hansson@arm.com bool sendTimingResp(PacketPtr pkt); 3458948Sandreas.hansson@arm.com 3468948Sandreas.hansson@arm.com /** 3478975Sandreas.hansson@arm.com * Attempt to send a timing snoop request packet to the master port 3488975Sandreas.hansson@arm.com * by calling its corresponding receive function. Snoop requests 3498975Sandreas.hansson@arm.com * always succeed and hence no return value is needed. 3508975Sandreas.hansson@arm.com * 3518975Sandreas.hansson@arm.com * @param pkt Packet to send. 3528948Sandreas.hansson@arm.com */ 3538975Sandreas.hansson@arm.com void sendTimingSnoopReq(PacketPtr pkt); 3548948Sandreas.hansson@arm.com 3558948Sandreas.hansson@arm.com /** 3569087Sandreas.hansson@arm.com * Send a retry to the master port that previously attempted a 3579087Sandreas.hansson@arm.com * sendTimingReq or sendTimingSnoopResp to this slave port and 3589087Sandreas.hansson@arm.com * failed. 3599087Sandreas.hansson@arm.com */ 3609087Sandreas.hansson@arm.com void sendRetry(); 3619087Sandreas.hansson@arm.com 3629087Sandreas.hansson@arm.com /** 3638922Swilliam.wang@arm.com * Called by a peer port in order to determine the block size of 3648922Swilliam.wang@arm.com * the owner of this port. 3658922Swilliam.wang@arm.com */ 3668922Swilliam.wang@arm.com virtual unsigned deviceBlockSize() const { return 0; } 3678922Swilliam.wang@arm.com 3688922Swilliam.wang@arm.com /** Called by the associated device if it wishes to find out the blocksize 3698922Swilliam.wang@arm.com of the device on attached to the peer port. 3708922Swilliam.wang@arm.com */ 3718922Swilliam.wang@arm.com unsigned peerBlockSize() const; 3728922Swilliam.wang@arm.com 3738922Swilliam.wang@arm.com /** 3749088Sandreas.hansson@arm.com * Find out if the peer master port is snooping or not. 3759088Sandreas.hansson@arm.com * 3769088Sandreas.hansson@arm.com * @return true if the peer master port is snooping 3779088Sandreas.hansson@arm.com */ 3789088Sandreas.hansson@arm.com bool isSnooping() const { return _masterPort->isSnooping(); } 3799088Sandreas.hansson@arm.com 3809088Sandreas.hansson@arm.com /** 3818922Swilliam.wang@arm.com * Called by the owner to send a range change 3828922Swilliam.wang@arm.com */ 3838922Swilliam.wang@arm.com void sendRangeChange() const { _masterPort->recvRangeChange(); } 3848922Swilliam.wang@arm.com 3858922Swilliam.wang@arm.com /** 3868922Swilliam.wang@arm.com * Get a list of the non-overlapping address ranges the owner is 3878922Swilliam.wang@arm.com * responsible for. All slave ports must override this function 3888922Swilliam.wang@arm.com * and return a populated list with at least one item. 3898922Swilliam.wang@arm.com * 3908922Swilliam.wang@arm.com * @return a list of ranges responded to 3918922Swilliam.wang@arm.com */ 3929090Sandreas.hansson@arm.com virtual AddrRangeList getAddrRanges() const = 0; 3938975Sandreas.hansson@arm.com 3948975Sandreas.hansson@arm.com protected: 3958975Sandreas.hansson@arm.com 3968975Sandreas.hansson@arm.com /** 3979178Sandreas.hansson@arm.com * Called by the master port to unbind. Should never be called 3989178Sandreas.hansson@arm.com * directly. 3999178Sandreas.hansson@arm.com */ 4009178Sandreas.hansson@arm.com void unbind(); 4019178Sandreas.hansson@arm.com 4029178Sandreas.hansson@arm.com /** 4039178Sandreas.hansson@arm.com * Called by the master port to bind. Should never be called 4049178Sandreas.hansson@arm.com * directly. 4059178Sandreas.hansson@arm.com */ 4069178Sandreas.hansson@arm.com void bind(MasterPort& master_port); 4079178Sandreas.hansson@arm.com 4089178Sandreas.hansson@arm.com /** 4098975Sandreas.hansson@arm.com * Receive an atomic request packet from the master port. 4108975Sandreas.hansson@arm.com */ 4118975Sandreas.hansson@arm.com virtual Tick recvAtomic(PacketPtr pkt) = 0; 4128975Sandreas.hansson@arm.com 4138975Sandreas.hansson@arm.com /** 4148975Sandreas.hansson@arm.com * Receive a functional request packet from the master port. 4158975Sandreas.hansson@arm.com */ 4168975Sandreas.hansson@arm.com virtual void recvFunctional(PacketPtr pkt) = 0; 4178975Sandreas.hansson@arm.com 4188975Sandreas.hansson@arm.com /** 4198975Sandreas.hansson@arm.com * Receive a timing request from the master port. 4208975Sandreas.hansson@arm.com */ 4218975Sandreas.hansson@arm.com virtual bool recvTimingReq(PacketPtr pkt) = 0; 4228975Sandreas.hansson@arm.com 4238975Sandreas.hansson@arm.com /** 4248975Sandreas.hansson@arm.com * Receive a timing snoop response from the master port. 4258975Sandreas.hansson@arm.com */ 4268975Sandreas.hansson@arm.com virtual bool recvTimingSnoopResp(PacketPtr pkt) 4278975Sandreas.hansson@arm.com { 4288975Sandreas.hansson@arm.com panic("%s was not expecting a timing snoop response\n", name()); 4298975Sandreas.hansson@arm.com } 4308975Sandreas.hansson@arm.com 4319087Sandreas.hansson@arm.com /** 4329087Sandreas.hansson@arm.com * Called by the master port if sendTimingResp was called on this 4339087Sandreas.hansson@arm.com * slave port (causing recvTimingResp to be called on the master 4349087Sandreas.hansson@arm.com * port) and was unsuccesful. 4359087Sandreas.hansson@arm.com */ 4369087Sandreas.hansson@arm.com virtual void recvRetry() = 0; 4379087Sandreas.hansson@arm.com 4388922Swilliam.wang@arm.com}; 4398922Swilliam.wang@arm.com 4402381SN/A#endif //__MEM_PORT_HH__ 441