diff options
Diffstat (limited to 'src/mem/coherent_xbar.cc')
| -rw-r--r-- | src/mem/coherent_xbar.cc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/mem/coherent_xbar.cc b/src/mem/coherent_xbar.cc index 7c3a4e314..ef0620822 100644 --- a/src/mem/coherent_xbar.cc +++ b/src/mem/coherent_xbar.cc @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011-2016 ARM Limited + * Copyright (c) 2011-2017 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -661,8 +661,18 @@ CoherentXBar::recvAtomic(PacketPtr pkt, PortID slave_port_id) // between and change the filter state snoopFilter->finishRequest(false, pkt->getAddr(), pkt->isSecure()); - snoop_result = forwardAtomic(pkt, slave_port_id, InvalidPortID, - sf_res.first); + if (pkt->isEviction()) { + // for block-evicting packets, i.e. writebacks and + // clean evictions, there is no need to snoop up, as + // all we do is determine if the block is cached or + // not, instead just set it here based on the snoop + // filter result + if (!sf_res.first.empty()) + pkt->setBlockCached(); + } else { + snoop_result = forwardAtomic(pkt, slave_port_id, InvalidPortID, + sf_res.first); + } } else { snoop_result = forwardAtomic(pkt, slave_port_id); } |