From: Ron Dreslinski <rdreslin@umich.edu>
Date: Mon, 9 Oct 2006 04:27:41 +0000 (-0400)
Subject: Don't create a response if one isn't needed.
X-Git-Tag: m5_2.0_beta2~73^2~19^2~13
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0087061681869c9aaab81c3797020b083a83d46a;p=gem5.git

Don't create a response if one isn't needed.

--HG--
extra : convert_revision : 37bd230f527f64eb12779157869aae9dcfdde7fd
---

diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 9ce8f515d..ac2d7af8b 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -620,7 +620,9 @@ Cache<TagStore,Buffering,Coherence>::probe(Packet * &pkt, bool update, CachePort
                 lat = memSidePort->sendAtomic(busPkt);
 
                 //Be sure to flip the response to a request for coherence
-                busPkt->makeAtomicResponse();
+                if (busPkt->needsResponse()) {
+                    busPkt->makeAtomicResponse();
+                }
 
 /*		if (!(busPkt->flags & SATISFIED)) {
                     // blocked at a higher level, just return