From: Timothy M. Jones <tjones1@inf.ed.ac.uk>
Date: Thu, 22 Jul 2010 17:54:37 +0000 (+0100)
Subject: Port: Only indicate that a SimpleTimingPort is drained if its send event is
X-Git-Tag: stable_2012_02_02~983
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=28a5ea3f999d012be616395f9b396ce341882bb7;p=gem5.git

Port: Only indicate that a SimpleTimingPort is drained if its send event is
not scheduled, as well as the transmit list being empty.
---

diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 76a99109d..bf2901d36 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -1569,7 +1569,7 @@ Cache<TagStore>::MemSidePort::sendPacket()
             schedule(sendEvent, std::max(nextReady, curTick + 1));
         } else {
             // no more to send right now: if we're draining, we may be done
-            if (drainEvent) {
+            if (drainEvent && !sendEvent->scheduled()) {
                 drainEvent->process();
                 drainEvent = NULL;
             }
diff --git a/src/mem/tport.cc b/src/mem/tport.cc
index e981a7445..4e89544e3 100644
--- a/src/mem/tport.cc
+++ b/src/mem/tport.cc
@@ -155,7 +155,7 @@ SimpleTimingPort::sendDeferredPacket()
             schedule(sendEvent, time <= curTick ? curTick+1 : time);
         }
 
-        if (transmitList.empty() && drainEvent) {
+        if (transmitList.empty() && drainEvent && !sendEvent->scheduled()) {
             drainEvent->process();
             drainEvent = NULL;
         }
@@ -195,7 +195,7 @@ SimpleTimingPort::processSendEvent()
 unsigned int
 SimpleTimingPort::drain(Event *de)
 {
-    if (transmitList.size() == 0)
+    if (transmitList.size() == 0 && !sendEvent->scheduled())
         return 0;
     drainEvent = de;
     return 1;