qport.hh

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#ifndef __MEM_QPORT_HH__
#define __MEM_QPORT_HH__
 
#include "mem/packet_queue.hh"
#include "mem/port.hh"
#include "sim/sim_object.hh"
 
namespace gem5
{
 
class QueuedResponsePort : public ResponsePort
{
 
  protected:
 
    RespPacketQueue &respQueue;
 
    void recvRespRetry() { respQueue.retry(); }
 
  public:
 
    QueuedResponsePort(const std::string& name,
                       RespPacketQueue &resp_queue,
                       PortID id = InvalidPortID) :
        ResponsePort(name, id), respQueue(resp_queue)
    { }
 
    virtual ~QueuedResponsePort() { }
 
    void schedTimingResp(PacketPtr pkt, Tick when)
    { respQueue.schedSendTiming(pkt, when); }
 
    bool trySatisfyFunctional(PacketPtr pkt)
    { return respQueue.trySatisfyFunctional(pkt); }
};
 
class QueuedRequestPort : public RequestPort
{
 
  protected:
 
    ReqPacketQueue &reqQueue;
 
    SnoopRespPacketQueue &snoopRespQueue;
 
    void recvReqRetry() { reqQueue.retry(); }
 
    void recvRetrySnoopResp() { snoopRespQueue.retry(); }
 
  public:
 
    QueuedRequestPort(const std::string& name,
                     ReqPacketQueue &req_queue,
                     SnoopRespPacketQueue &snoop_resp_queue,
                     PortID id = InvalidPortID) :
        RequestPort(name, id), reqQueue(req_queue),
        snoopRespQueue(snoop_resp_queue)
    { }
 
    virtual ~QueuedRequestPort() { }
 
    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);
    }
};
 
} // namespace gem5
 
#endif // __MEM_QPORT_HH__