From e03b9c9939d7782198c023b23ed33cde131f48c5 Mon Sep 17 00:00:00 2001 From: Ron Dreslinski Date: Mon, 9 Oct 2006 19:15:24 -0400 Subject: [PATCH] Fix how upgrades work. Remove some dead code. src/mem/cache/cache_impl.hh: Upgrades don't need a response. Moved satisfied check into bus so removed some dead code. src/mem/cache/coherence/coherence_protocol.cc: src/mem/packet.hh: Upgrades don't require a response --HG-- extra : convert_revision : dee0440ff19ba4c9e51bf9a47a5b0991265cfc1d --- src/mem/cache/cache_impl.hh | 8 +++----- src/mem/cache/coherence/coherence_protocol.cc | 2 +- src/mem/packet.hh | 3 +-- 3 files changed, 5 insertions(+), 8 deletions(-) diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index af12b9255..c3c1c0881 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -63,9 +63,8 @@ doTimingAccess(Packet *pkt, CachePort *cachePort, bool isCpuSide) if (pkt->isWrite() && (pkt->req->isLocked())) { pkt->req->setScResult(1); } - if (!(pkt->flags & SATISFIED)) { - access(pkt); - } + access(pkt); + } else { @@ -204,9 +203,8 @@ Cache::access(PacketPtr &pkt) pkt->getAddr() & (((ULL(1))<<48)-1), pkt->getAddr() & ~((Addr)blkSize - 1)); - //@todo Should this return latency have the hit latency in it? -// respond(pkt,curTick+lat); pkt->flags |= SATISFIED; + //Invalidates/Upgrades need no response if they get the bus // return MA_HIT; //@todo, return values return true; } diff --git a/src/mem/cache/coherence/coherence_protocol.cc b/src/mem/cache/coherence/coherence_protocol.cc index bcf3ce9c5..e28dda3dc 100644 --- a/src/mem/cache/coherence/coherence_protocol.cc +++ b/src/mem/cache/coherence/coherence_protocol.cc @@ -271,7 +271,7 @@ CoherenceProtocol::CoherenceProtocol(const string &name, } Packet::Command writeToSharedCmd = doUpgrades ? Packet::UpgradeReq : Packet::ReadExReq; - Packet::Command writeToSharedResp = doUpgrades ? Packet::UpgradeResp : Packet::ReadExResp; + Packet::Command writeToSharedResp = doUpgrades ? Packet::UpgradeReq : Packet::ReadExResp; //@todo add in hardware prefetch to this list if (protocol == "msi") { diff --git a/src/mem/packet.hh b/src/mem/packet.hh index be9bf5f57..9d37fe157 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -194,8 +194,7 @@ class Packet HardPFResp = IsRead | IsResponse | IsHWPrefetch | NeedsResponse, InvalidateReq = IsInvalidate | IsRequest, WriteInvalidateReq = IsWrite | IsInvalidate | IsRequest, - UpgradeReq = IsInvalidate | IsRequest | NeedsResponse, - UpgradeResp = IsInvalidate | IsResponse | NeedsResponse, + UpgradeReq = IsInvalidate | IsRequest ReadExReq = IsRead | IsInvalidate | IsRequest | NeedsResponse, ReadExResp = IsRead | IsInvalidate | IsResponse | NeedsResponse }; -- 2.30.2