Merge zizzer:/z/m5/Bitkeeper/newmem

into  zizzer.eecs.umich.edu:/.automount/zazzer/z/rdreslin/m5bk/newmem

--HG--
extra : convert_revision : 8a8d7fe59610806015c8242a2f5eacf9afce7164

src/mem/cache/base_cache.cc

@@ -71,6 +71,11 @@ BaseCache::CachePort::deviceBlockSize()
 bool
 BaseCache::CachePort::recvTiming(Packet *pkt)
 {
+    if (blocked)
+    {
+        mustSendRetry = true;
+        return false;
+    }
     return cache->doTimingAccess(pkt, this, isCpuSide);
 }
 
@@ -95,6 +100,11 @@ BaseCache::CachePort::setBlocked()
 void
 BaseCache::CachePort::clearBlocked()
 {
+    if (mustSendRetry)
+    {
+        mustSendRetry = false;
+        sendRetry();
+    }
     blocked = false;
 }
 

src/mem/cache/base_cache.hh

@@ -105,6 +105,8 @@ class BaseCache : public MemObject
 
         bool blocked;
 
+        bool mustSendRetry;
+
         bool isCpuSide;
     };
 

src/mem/cache/cache_impl.hh

@@ -69,7 +69,7 @@ doTimingAccess(Packet *pkt, CachePort *cachePort, bool isCpuSide)
         else
             snoop(pkt);
     }
-    return true; //Deal with blocking....
+    return true;
 }
 
 template<class TagStore, class Buffering, class Coherence>