public virtual void FindAndLock(uint addr, bool isBlocking, bool isRead, bool isRetry, FindAndLockDelegate onCompletedCallback)
{
throw new NotImplementedException ();
}
public override void FindAndLock(uint addr, bool isBlocking, bool isRead, bool isRetry, FindAndLockDelegate onCompletedCallback)
{
uint @set, way, tag;
MESIState state;
bool hasHit = this.Cache.FindLine (addr, out @set, out way, out tag, out state, true);
this.Stat.Accesses++;
if (hasHit) {
this.Stat.Hits++;
}
if (isRead) {
this.Stat.Reads++;
if (isBlocking) {
this.Stat.BlockingReads++;
} else {
this.Stat.NonblockingReads++;
}
if (hasHit) {
this.Stat.ReadHits++;
}
} else {
this.Stat.Writes++;
if (isBlocking) {
this.Stat.BlockingWrites++;
} else {
this.Stat.NonblockingWrites++;
}
if (hasHit) {
this.Stat.WriteHits++;
}
}
if (!isRetry) {
this.Stat.NoRetryAccesses++;
if (hasHit) {
this.Stat.NoRetryHits++;
}
if (isRead) {
this.Stat.NoRetryReads++;
if (hasHit) {
this.Stat.NoRetryReadHits++;
}
} else {
this.Stat.NoRetryWrites++;
if (hasHit) {
this.Stat.NoRetryWriteHits++;
}
}
}
uint dumbTag;
if (!hasHit) {
way = this.Cache.FindVictimToEvict (@set);
this.Cache.GetLine (@set, way, out dumbTag, out state);
}
DirectoryLock dirLock = this.Cache.Directory.Locks[(int)@set];
if (!dirLock.Lock ()) {
if (isBlocking) {
onCompletedCallback (true, @set, way, state, tag, dirLock);
} else {
this.Retry (() => this.FindAndLock (addr, isBlocking, isRead, true, onCompletedCallback));
}
} else {
this.Cache[@set][way].TransientTag = tag;
if (!hasHit && state != MESIState.Invalid) {
this.Schedule (() => { this.Evict (@set, way, hasError =>{uint dumbTag1;if (!hasError) {this.Stat.Evictions++;this.Cache.GetLine (@set, way, out dumbTag1, out state);onCompletedCallback (false, @set, way, state, tag, dirLock);} else {this.Cache.GetLine (@set, way, out dumbTag, out state);dirLock.Unlock ();onCompletedCallback (true, @set, way, state, tag, dirLock);}}); }, this.HitLatency);
} else {
this.Schedule (() => onCompletedCallback (false, @set, way, state, tag, dirLock), this.HitLatency);
}
}
}
