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-rw-r--r--src/mem/cache/cache_impl.hh15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 76fb697c2..b482d6314 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -1475,10 +1475,23 @@ Cache<TagStore>::recvTimingSnoopReq(PacketPtr pkt)
// Snoops shouldn't happen when bypassing caches
assert(!system->bypassCaches());
+ // check if the packet is for an address range covered by this
+ // cache, partly to not waste time looking for it, but also to
+ // ensure that we only forward the snoop upwards if it is within
+ // our address ranges
+ bool in_range = false;
+ for (AddrRangeList::const_iterator r = addrRanges.begin();
+ r != addrRanges.end(); ++r) {
+ if (r->contains(pkt->getAddr())) {
+ in_range = true;
+ break;
+ }
+ }
+
// Note that some deferred snoops don't have requests, since the
// original access may have already completed
if ((pkt->req && pkt->req->isUncacheable()) ||
- pkt->cmd == MemCmd::Writeback) {
+ pkt->cmd == MemCmd::Writeback || !in_range) {
//Can't get a hit on an uncacheable address
//Revisit this for multi level coherence
return;