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31 #include "mem/tport.hh"
34 SimpleTimingPort::recvFunctional(Packet
*pkt
)
36 // just do an atomic access and throw away the returned latency
41 SimpleTimingPort::recvTiming(Packet
*pkt
)
43 // If the device is only a slave, it should only be sending
44 // responses, which should never get nacked. There used to be
45 // code to hanldle nacks here, but I'm pretty sure it didn't work
46 // correctly with the drain code, so that would need to be fixed
47 // if we ever added it back.
48 assert(pkt
->result
!= Packet::Nacked
);
49 Tick latency
= recvAtomic(pkt
);
50 // turn packet around to go back to requester if response expected
51 if (pkt
->needsResponse()) {
52 pkt
->makeTimingResponse();
53 sendTimingLater(pkt
, latency
);
59 SimpleTimingPort::recvRetry()
62 while (result
&& transmitList
.size()) {
63 result
= sendTiming(transmitList
.front());
65 transmitList
.pop_front();
67 if (transmitList
.size() == 0 && drainEvent
) {
68 drainEvent
->process();
74 SimpleTimingPort::SendEvent::process()
77 assert(port
->outTiming
>= 0);
78 if (port
->sendTiming(packet
)) {
80 if (port
->transmitList
.size() == 0 && port
->drainEvent
) {
81 port
->drainEvent
->process();
82 port
->drainEvent
= NULL
;
85 // send unsuccessful (due to flow control). Will get retry
86 // callback later; save for then.
87 port
->transmitList
.push_back(packet
);
93 SimpleTimingPort::drain(Event
*de
)
95 if (outTiming
== 0 && transmitList
.size() == 0)