Changes needed for a bus from CPU->L1

src/cpu/simple/atomic.cc:
    Make the atomic cpu return 0 on snoops.

--HG--
extra : convert_revision : aad96ad36e0c764c7cfef8b0c8e97877574f5845

src/cpu/simple/atomic.cc

@@ -94,7 +94,7 @@ Tick
 AtomicSimpleCPU::CpuPort::recvAtomic(PacketPtr pkt)
 {
     //Snooping a coherence request, just return
-    return curTick;
+    return 0;
 }
 
 void