qport.hh

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 * Authors: Andreas Hansson
 */

#ifndef __MEM_QPORT_HH__
#define __MEM_QPORT_HH__

#include "mem/packet_queue.hh"
#include "mem/port.hh"
#include "sim/sim_object.hh"

class QueuedSlavePort : public SlavePort
{

  protected:

    RespPacketQueue &respQueue;

    void recvRespRetry() { respQueue.retry(); }

  public:

    QueuedSlavePort(const std::string& name, SimObject* owner,
                    RespPacketQueue &resp_queue, PortID id = InvalidPortID) :
        SlavePort(name, owner, id), respQueue(resp_queue)
    { }

    virtual ~QueuedSlavePort() { }

    void schedTimingResp(PacketPtr pkt, Tick when)
    { respQueue.schedSendTiming(pkt, when); }

    bool trySatisfyFunctional(PacketPtr pkt)
    { return respQueue.trySatisfyFunctional(pkt); }
};

class QueuedMasterPort : public MasterPort
{

  protected:

    ReqPacketQueue &reqQueue;

    SnoopRespPacketQueue &snoopRespQueue;

    void recvReqRetry() { reqQueue.retry(); }

    void recvRetrySnoopResp() { snoopRespQueue.retry(); }

  public:

    QueuedMasterPort(const std::string& name, SimObject* owner,
                     ReqPacketQueue &req_queue,
                     SnoopRespPacketQueue &snoop_resp_queue,
                     PortID id = InvalidPortID) :
        MasterPort(name, owner, id), reqQueue(req_queue),
        snoopRespQueue(snoop_resp_queue)
    { }

    virtual ~QueuedMasterPort() { }

    void schedTimingReq(PacketPtr pkt, Tick when)
    { reqQueue.schedSendTiming(pkt, when); }

    void schedTimingSnoopResp(PacketPtr pkt, Tick when)
    { snoopRespQueue.schedSendTiming(pkt, when); }

    bool trySatisfyFunctional(PacketPtr pkt)
    {
        return reqQueue.trySatisfyFunctional(pkt) ||
            snoopRespQueue.trySatisfyFunctional(pkt);
    }
};

#endif // __MEM_QPORT_HH__