diff options
Diffstat (limited to 'src/mem/cache/base_cache.hh')
-rw-r--r-- | src/mem/cache/base_cache.hh | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh index c69fb7fd5..c45f3b71b 100644 --- a/src/mem/cache/base_cache.hh +++ b/src/mem/cache/base_cache.hh @@ -72,6 +72,7 @@ enum RequestCause{ Request_PF }; +class MSHR; /** * A basic cache interface. Implements some common functions for speed. */ @@ -112,6 +113,8 @@ class BaseCache : public MemObject bool isCpuSide; std::list<Packet *> drainList; + + Packet *cshrRetry; }; struct CacheEvent : public Event @@ -156,7 +159,7 @@ class BaseCache : public MemObject if (status == Port::RangeChange){ if (!isCpuSide) { cpuSidePort->sendStatusChange(Port::RangeChange); - if (topLevelCache && !snoopRangesSent) { + if (!snoopRangesSent) { snoopRangesSent = true; memSidePort->sendStatusChange(Port::RangeChange); } @@ -165,10 +168,6 @@ class BaseCache : public MemObject memSidePort->sendStatusChange(Port::RangeChange); } } - else if (status == Port::SnoopSquash) { - assert(snoopPhase2); - snoopPhase2 = false; - } } virtual Packet *getPacket() @@ -181,7 +180,7 @@ class BaseCache : public MemObject fatal("No implementation"); } - virtual void sendResult(Packet* &pkt, bool success) + virtual void sendResult(Packet* &pkt, MSHR* mshr, bool success) { fatal("No implementation"); @@ -215,9 +214,6 @@ class BaseCache : public MemObject bool topLevelCache; - /** True if we are now in phase 2 of the snoop process. */ - bool snoopPhase2; - /** Stores time the cache blocked for statistics. */ Tick blockedCycle; @@ -523,8 +519,10 @@ class BaseCache : public MemObject */ void respond(Packet *pkt, Tick time) { - CacheEvent *reqCpu = new CacheEvent(cpuSidePort, pkt); - reqCpu->schedule(time); + if (pkt->needsResponse()) { + CacheEvent *reqCpu = new CacheEvent(cpuSidePort, pkt); + reqCpu->schedule(time); + } } /** @@ -537,8 +535,10 @@ class BaseCache : public MemObject if (!pkt->req->isUncacheable()) { missLatency[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/] += time - pkt->time; } - CacheEvent *reqCpu = new CacheEvent(cpuSidePort, pkt); - reqCpu->schedule(time); + if (pkt->needsResponse()) { + CacheEvent *reqCpu = new CacheEvent(cpuSidePort, pkt); + reqCpu->schedule(time); + } } /** @@ -549,6 +549,7 @@ class BaseCache : public MemObject { // assert("Implement\n" && 0); // mi->respond(pkt,curTick + hitLatency); + assert (pkt->needsResponse()); CacheEvent *reqMem = new CacheEvent(memSidePort, pkt); reqMem->schedule(time); } @@ -570,14 +571,14 @@ class BaseCache : public MemObject { //This is where snoops get updated AddrRangeList dummy; - if (!topLevelCache) - { +// if (!topLevelCache) +// { cpuSidePort->getPeerAddressRanges(dummy, snoop); - } - else - { - snoop.push_back(RangeSize(0,-1)); - } +// } +// else +// { +// snoop.push_back(RangeSize(0,-1)); +// } return; } |