First cut at LL/SC support in caches (atomic mode only).

[gem5.git] / src / mem / cache / base_cache.hh

diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh
index 455e13d9c8f2cf441923aae6d22fe2b9efb43515..93830b04fd7cc843a37a1da0bbfc27153c90d30d 100644 (file)
--- a/src/mem/cache/base_cache.hh
+++ b/src/mem/cache/base_cache.hh
@@ -58,7 +58,6 @@ enum BlockedCause{
     Blocked_NoTargets,
     Blocked_NoWBBuffers,
     Blocked_Coherence,
-    Blocked_Copy,
     NUM_BLOCKED_CAUSES
 };
 
@@ -116,7 +115,6 @@ class BaseCache : public MemObject
 
         std::list<Packet *> drainList;
 
-        Packet *cshrRetry;
     };
 
     struct CacheEvent : public Event
@@ -188,6 +186,12 @@ class BaseCache : public MemObject
         fatal("No implementation");
     }
 
+    virtual void sendCoherenceResult(Packet* &pkt, MSHR* mshr, bool success)
+    {
+
+        fatal("No implementation");
+    }
+
     /**
      * Bit vector of the blocking reasons for the access path.
      * @sa #BlockedCause
@@ -489,10 +493,13 @@ class BaseCache : public MemObject
      */
     void setSlaveRequest(RequestCause cause, Tick time)
     {
+        if (!doSlaveRequest() && !cpuSidePort->waitingOnRetry)
+        {
+            BaseCache::CacheEvent * reqCpu = new BaseCache::CacheEvent(cpuSidePort);
+            reqCpu->schedule(time);
+        }
         uint8_t flag = 1<<cause;
         slaveRequests |= flag;
-        assert("Implement\n" && 0);
-//     si->pktuest(time);
     }
 
     /**
@@ -517,8 +524,11 @@ class BaseCache : public MemObject
             reqCpu->schedule(time);
         }
         else {
-            if (pkt->cmd == Packet::Writeback) delete pkt->req;
-            delete pkt;
+            if (pkt->cmd != Packet::UpgradeReq)
+            {
+                delete pkt->req;
+                delete pkt;
+            }
         }
     }
 
@@ -537,8 +547,11 @@ class BaseCache : public MemObject
             reqCpu->schedule(time);
         }
         else {
-            if (pkt->cmd == Packet::Writeback) delete pkt->req;
-            delete pkt;
+            if (pkt->cmd != Packet::UpgradeReq)
+            {
+                delete pkt->req;
+                delete pkt;
+            }
         }
     }