atomic.hh

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/*
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 * Authors: Ron Dreslinski
 *          Andreas Hansson
 *          William Wang
 */

#ifndef __MEM_GEM5_PROTOCOL_ATOMIC_HH__
#define __MEM_GEM5_PROTOCOL_ATOMIC_HH__

#include "mem/backdoor.hh"
#include "mem/packet.hh"

class AtomicResponseProtocol;

class AtomicRequestProtocol
{
    friend class AtomicResponseProtocol;

  protected:
    Tick send(AtomicResponseProtocol *peer, PacketPtr pkt);

    Tick sendBackdoor(AtomicResponseProtocol *peer, PacketPtr pkt,
                      MemBackdoorPtr &backdoor);

    virtual Tick recvAtomicSnoop(PacketPtr pkt) = 0;
};

class AtomicResponseProtocol
{
    friend class AtomicRequestProtocol;

  protected:
    Tick sendSnoop(AtomicRequestProtocol *peer, PacketPtr pkt);

    virtual Tick recvAtomic(PacketPtr pkt) = 0;

    virtual Tick recvAtomicBackdoor(
            PacketPtr pkt, MemBackdoorPtr &backdoor) = 0;
};

#endif //__MEM_GEM5_PROTOCOL_ATOMIC_HH__