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authorRon Dreslinski <rdreslin@umich.edu>2006-10-06 09:15:53 -0400
committerRon Dreslinski <rdreslin@umich.edu>2006-10-06 09:15:53 -0400
commit1b6653b6f791c87aeaf1dec98cdaa1a015cb11bd (patch)
treee9ee0240b2944c32ef2d05a6ebadb4678188bc02 /src/mem/cache
parent212c5aefb580375417d357d821255c67a8d90fdf (diff)
downloadgem5-1b6653b6f791c87aeaf1dec98cdaa1a015cb11bd.tar.xz
Remove threadnum from cache everywhere for now
Fix so that blocking for the same reason doesn't fail. I.E. multiple writebacks want to set the blocked flag. src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/miss_queue.cc: src/mem/cache/miss/mshr.cc: Remove threadnum from cache everywhere for now --HG-- extra : convert_revision : 7890712147655280b4f1439d486feafbd5b18b2b
Diffstat (limited to 'src/mem/cache')
-rw-r--r--src/mem/cache/base_cache.hh18
-rw-r--r--src/mem/cache/miss/blocking_buffer.cc6
-rw-r--r--src/mem/cache/miss/miss_queue.cc18
-rw-r--r--src/mem/cache/miss/mshr.cc2
4 files changed, 25 insertions, 19 deletions
diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh
index 19cfe1335..7c16398aa 100644
--- a/src/mem/cache/base_cache.hh
+++ b/src/mem/cache/base_cache.hh
@@ -394,9 +394,12 @@ class BaseCache : public MemObject
blocked_causes[cause]++;
blockedCycle = curTick;
}
- blocked |= flag;
- DPRINTF(Cache,"Blocking for cause %s\n", cause);
- cpuSidePort->setBlocked();
+ if (!(blocked & flag)) {
+ //Wasn't already blocked for this cause
+ blocked |= flag;
+ DPRINTF(Cache,"Blocking for cause %s\n", cause);
+ cpuSidePort->setBlocked();
+ }
}
/**
@@ -407,8 +410,11 @@ class BaseCache : public MemObject
void setBlockedForSnoop(BlockedCause cause)
{
uint8_t flag = 1 << cause;
- blockedSnoop |= flag;
- memSidePort->setBlocked();
+ if (!(blocked & flag)) {
+ //Wasn't already blocked for this cause
+ blockedSnoop |= flag;
+ memSidePort->setBlocked();
+ }
}
/**
@@ -527,7 +533,7 @@ class BaseCache : public MemObject
void respondToMiss(Packet *pkt, Tick time)
{
if (!pkt->req->isUncacheable()) {
- missLatency[pkt->cmdToIndex()][pkt->req->getThreadNum()] += time - pkt->time;
+ missLatency[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/] += time - pkt->time;
}
CacheEvent *reqCpu = new CacheEvent(cpuSidePort, pkt);
reqCpu->schedule(time);
diff --git a/src/mem/cache/miss/blocking_buffer.cc b/src/mem/cache/miss/blocking_buffer.cc
index 67fc7ae56..7a6ea9133 100644
--- a/src/mem/cache/miss/blocking_buffer.cc
+++ b/src/mem/cache/miss/blocking_buffer.cc
@@ -189,7 +189,7 @@ BlockingBuffer::squash(int threadNum)
if (miss.threadNum == threadNum) {
Packet * target = miss.getTarget();
miss.popTarget();
- assert(target->req->getThreadNum() == threadNum);
+ assert(0/*target->req->getThreadNum()*/ == threadNum);
target = NULL;
assert(!miss.hasTargets());
miss.ntargets=0;
@@ -218,7 +218,7 @@ BlockingBuffer::doWriteback(Addr addr,
}
///All writebacks charged to same thread @todo figure this out
- writebacks[pkt->req->getThreadNum()]++;
+ writebacks[0/*pkt->req->getThreadNum()*/]++;
wb.allocateAsBuffer(pkt);
cache->setMasterRequest(Request_WB, curTick);
@@ -230,7 +230,7 @@ BlockingBuffer::doWriteback(Addr addr,
void
BlockingBuffer::doWriteback(Packet * &pkt)
{
- writebacks[pkt->req->getThreadNum()]++;
+ writebacks[0/*pkt->req->getThreadNum()*/]++;
wb.allocateAsBuffer(pkt);
diff --git a/src/mem/cache/miss/miss_queue.cc b/src/mem/cache/miss/miss_queue.cc
index 76fb25716..273b6587f 100644
--- a/src/mem/cache/miss/miss_queue.cc
+++ b/src/mem/cache/miss/miss_queue.cc
@@ -413,8 +413,8 @@ MissQueue::handleMiss(Packet * &pkt, int blkSize, Tick time)
mshr = mq.findMatch(blkAddr);
if (mshr) {
//@todo remove hw_pf here
- mshr_hits[pkt->cmdToIndex()][pkt->req->getThreadNum()]++;
- if (mshr->threadNum != pkt->req->getThreadNum()) {
+ mshr_hits[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++;
+ if (mshr->threadNum != 0/*pkt->req->getThreadNum()*/) {
mshr->threadNum = -1;
}
mq.allocateTarget(mshr, pkt);
@@ -434,11 +434,11 @@ MissQueue::handleMiss(Packet * &pkt, int blkSize, Tick time)
mshr_no_allocate_misses++;
}
else {
- mshr_misses[pkt->cmdToIndex()][pkt->req->getThreadNum()]++;
+ mshr_misses[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++;
}
} else {
//Count uncacheable accesses
- mshr_uncacheable[pkt->cmdToIndex()][pkt->req->getThreadNum()]++;
+ mshr_uncacheable[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++;
size = pkt->getSize();
}
if (pkt->isWrite() && (pkt->req->isUncacheable() || !writeAllocate ||
@@ -499,7 +499,7 @@ MissQueue::getPacket()
pkt = prefetcher->getPacket();
if (pkt) {
//Update statistic on number of prefetches issued (hwpf_mshr_misses)
- mshr_misses[pkt->cmdToIndex()][pkt->req->getThreadNum()]++;
+ mshr_misses[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++;
//It will request the bus for the future, but should clear that immedieatley
allocateMiss(pkt, pkt->getSize(), curTick);
pkt = mq.getReq();
@@ -592,7 +592,7 @@ MissQueue::handleResponse(Packet * &pkt, Tick time)
BlockedCause cause = NUM_BLOCKED_CAUSES;
if (pkt->isCacheFill() && !pkt->isNoAllocate()) {
- mshr_miss_latency[mshr->originalCmd][pkt->req->getThreadNum()] +=
+ mshr_miss_latency[mshr->originalCmd][0/*pkt->req->getThreadNum()*/] +=
curTick - pkt->time;
// targets were handled in the cache tags
if (mshr == noTargetMSHR) {
@@ -619,7 +619,7 @@ MissQueue::handleResponse(Packet * &pkt, Tick time)
}
} else {
if (pkt->req->isUncacheable()) {
- mshr_uncacheable_lat[pkt->cmd][pkt->req->getThreadNum()] +=
+ mshr_uncacheable_lat[pkt->cmd][0/*pkt->req->getThreadNum()*/] +=
curTick - pkt->time;
}
if (mshr->hasTargets() && pkt->req->isUncacheable()) {
@@ -725,7 +725,7 @@ MissQueue::doWriteback(Addr addr,
}
///All writebacks charged to same thread @todo figure this out
- writebacks[pkt->req->getThreadNum()]++;
+ writebacks[0/*pkt->req->getThreadNum()*/]++;
allocateWrite(pkt, 0, curTick);
}
@@ -734,7 +734,7 @@ MissQueue::doWriteback(Addr addr,
void
MissQueue::doWriteback(Packet * &pkt)
{
- writebacks[pkt->req->getThreadNum()]++;
+ writebacks[0/*pkt->req->getThreadNum()*/]++;
allocateWrite(pkt, 0, curTick);
}
diff --git a/src/mem/cache/miss/mshr.cc b/src/mem/cache/miss/mshr.cc
index 519ec5ebd..f36032672 100644
--- a/src/mem/cache/miss/mshr.cc
+++ b/src/mem/cache/miss/mshr.cc
@@ -88,7 +88,7 @@ void
MSHR::allocateAsBuffer(Packet * &target)
{
addr = target->getAddr();
- threadNum = target->req->getThreadNum();
+ threadNum = 0/*target->req->getThreadNum()*/;
pkt = new Packet(target->req, target->cmd, -1);
pkt->allocate();
pkt->senderState = (Packet::SenderState*)this;