diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mem/cache/cache_impl.hh | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index 5e6eccec8..ca332697b 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -819,6 +819,18 @@ Cache::getBusPacket(PacketPtr cpu_pkt, CacheBlk *blk, } PacketPtr pkt = new Packet(cpu_pkt->req, cmd, blkSize); + // if there are sharers in the upper levels, pass that info downstream + if (cpu_pkt->sharedAsserted()) { + // note that cpu_pkt may have spent a considerable time in the + // MSHR queue and that the information could possibly be out + // of date, however, there is no harm in conservatively + // assuming the block is shared + pkt->assertShared(); + DPRINTF(Cache, "%s passing shared from %s to %s addr %#llx size %d\n", + __func__, cpu_pkt->cmdString(), pkt->cmdString(), + pkt->getAddr(), pkt->getSize()); + } + // the packet should be block aligned assert(pkt->getAddr() == blockAlign(pkt->getAddr())); |