921a72f4f3
Change-Id: I439d64d01950463747446a8177086eb276b8db55 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25443 Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
89 lines
3.5 KiB
C++
89 lines
3.5 KiB
C++
/*
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* Copyright (c) 2011-2012,2015,2017 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEM_GEM5_PROTOCOL_FUNCTIONAL_HH__
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#define __MEM_GEM5_PROTOCOL_FUNCTIONAL_HH__
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#include "mem/packet.hh"
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class FunctionalResponseProtocol;
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class FunctionalRequestProtocol
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{
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friend class FunctionalResponseProtocol;
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protected:
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/**
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* Send a functional request packet, where the data is instantly
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* updated everywhere in the memory system, without affecting the
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* current state of any block or moving the block.
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*
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* @param pkt Packet to send.
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*/
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void send(FunctionalResponseProtocol *peer, PacketPtr pkt) const;
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/**
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* Receive a functional snoop request packet from the peer.
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*/
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virtual void recvFunctionalSnoop(PacketPtr pkt) = 0;
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};
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class FunctionalResponseProtocol
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{
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friend class FunctionalRequestProtocol;
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protected:
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/**
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* Send a functional snoop request packet, where the data is
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* instantly updated everywhere in the memory system, without
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* affecting the current state of any block or moving the block.
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*
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* @param pkt Snoop packet to send.
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*/
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void sendSnoop(FunctionalRequestProtocol *peer, PacketPtr pkt) const;
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/**
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* Receive a functional request packet from the peer.
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*/
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virtual void recvFunctional(PacketPtr pkt) = 0;
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};
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#endif //__MEM_GEM5_PROTOCOL_FUNCTIONAL_HH__
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