diff options
Diffstat (limited to 'src/mem/cache/cache_impl.hh')
| -rw-r--r-- | src/mem/cache/cache_impl.hh | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index 80b7c545c..d8630c1f5 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -1301,11 +1301,14 @@ Cache<TagStore>::getNextMSHR() // If we have a miss queue slot, we can try a prefetch PacketPtr pkt = prefetcher->getPacket(); if (pkt) { - // Update statistic on number of prefetches issued - // (hwpf_mshr_misses) - mshr_misses[pkt->cmdToIndex()][0/*pkt->req->threadId()*/]++; - // Don't request bus, since we already have it - return allocateMissBuffer(pkt, curTick, false); + Addr pf_addr = blockAlign(pkt->getAddr()); + if (!tags->findBlock(pf_addr) && !mshrQueue.findMatch(pf_addr)) { + // Update statistic on number of prefetches issued + // (hwpf_mshr_misses) + mshr_misses[pkt->cmdToIndex()][0/*pkt->req->threadId()*/]++; + // Don't request bus, since we already have it + return allocateMissBuffer(pkt, curTick, false); + } } } |