riscv/rocket-chip
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use thunk for dir info

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This commit is contained in:
Henry Cook 2014-07-10 17:01:19 -07:00
parent f7b1e23ead
commit faed47d131
1 changed files with 10 additions and 8 deletions
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18
uncore/src/main/scala/coherence.scala
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@ -39,7 +39,7 @@ object MasterMetadata {
}
class MasterMetadata(implicit c: CoherencePolicy) extends CoherenceMetadata {
val state = UInt(width = c.masterStateWidth)
val sharers = c.dir.clone
val sharers = c.dir()
override def clone = new MasterMetadata()(c).asInstanceOf[this.type]
}
/*
@ -75,10 +75,12 @@ class FullRepresentation(nClients: Int) extends DirectoryRepresentation {
def flush(dummy: Int = 0) = { sharers := UInt(0, width = nClients); this }
def none(dummy: Int = 0) = sharers === UInt(0)
def one(dummy: Int = 0) = PopCount(sharers) === UInt(1)
def count(dummy: Int = 0) = PopCount(sharers)
def next(dummy: Int = 0) = PriorityEncoder(sharers)
override def clone = new FullRepresentation(nClients).asInstanceOf[this.type]
}
abstract class CoherencePolicy(val dir: DirectoryRepresentation) {
abstract class CoherencePolicy(val dir: () => DirectoryRepresentation) {
def nClientStates: Int
def nMasterStates: Int
def nAcquireTypes: Int
@ -144,10 +146,10 @@ trait UncachedTransactions {
def isUncachedReadTransaction(acq: Acquire): Bool
}
abstract class CoherencePolicyWithUncached(dir: DirectoryRepresentation) extends CoherencePolicy(dir)
abstract class CoherencePolicyWithUncached(dir: () => DirectoryRepresentation) extends CoherencePolicy(dir)
with UncachedTransactions
class MICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
class MICoherence(dir: () => DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
def nClientStates = 2
def nMasterStates = 2
def nAcquireTypes = 6
@ -299,7 +301,7 @@ class MICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncac
def pendingVoluntaryReleaseIsSufficient(r_type: UInt, p_type: UInt): Bool = (r_type === releaseVoluntaryInvalidateData)
}
class MEICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
class MEICoherence(dir: () => DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
def nClientStates = 3
def nMasterStates = 2
def nAcquireTypes = 7
@ -470,7 +472,7 @@ class MEICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUnca
def pendingVoluntaryReleaseIsSufficient(r_type: UInt, p_type: UInt): Bool = (r_type === releaseVoluntaryInvalidateData)
}
class MSICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
class MSICoherence(dir: () => DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
def nClientStates = 3
def nMasterStates = 3
def nAcquireTypes = 7
@ -643,7 +645,7 @@ class MSICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUnca
def pendingVoluntaryReleaseIsSufficient(r_type: UInt, p_type: UInt): Bool = (r_type === releaseVoluntaryInvalidateData)
}
class MESICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
class MESICoherence(dir: () => DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
def nClientStates = 4
def nMasterStates = 3
def nAcquireTypes = 7
@ -822,7 +824,7 @@ class MESICoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUnc
def pendingVoluntaryReleaseIsSufficient(r_type: UInt, p_type: UInt): Bool = (r_type === releaseVoluntaryInvalidateData)
}
class MigratoryCoherence(dir: DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
class MigratoryCoherence(dir: () => DirectoryRepresentation) extends CoherencePolicyWithUncached(dir) {
def nClientStates = 7
def nMasterStates = 3
def nAcquireTypes = 8