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tilelink2: optimize the supportsX check circuits

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This commit is contained in:
Wesley W. Terpstra 2017-03-14 17:37:41 -07:00
parent 3c5c877409
commit d98fd942f1
1 changed files with 30 additions and 27 deletions
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57
src/main/scala/uncore/tilelink2/Parameters.scala
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@ -118,37 +118,40 @@ case class TLManagerPortParameters(
// Does this Port manage this ID/address?
def containsSafe(address: UInt) = findSafe(address).reduce(_ || _)
private def safe_helper(member: TLManagerParameters => TransferSizes)(address: UInt, lgSize: UInt) = {
val allSame = managers.map(member(_) == member(managers(0))).reduce(_ && _)
if (allSame) containsSafe(address) && member(managers(0)).containsLg(lgSize) else {
Mux1H(findSafe(address), managers.map(member(_).containsLg(lgSize)))
}
}
private def fast_helper(member: TLManagerParameters => TransferSizes)(address: UInt, lgSize: UInt) = {
val allSame = managers.map(member(_) == member(managers(0))).reduce(_ && _)
if (allSame) member(managers(0)).containsLg(lgSize) else {
Mux1H(findFast(address), managers.map(member(_).containsLg(lgSize)))
}
private def supportHelper(
safe: Boolean,
member: TLManagerParameters => TransferSizes,
address: UInt,
lgSize: UInt,
range: Option[TransferSizes]): Bool = {
def trim(x: TransferSizes) = range.map(_.intersect(x)).getOrElse(x)
val supportCases = managers.groupBy(m => trim(member(m))).mapValues(_.flatMap(_.address))
val mask = if (safe) ~BigInt(0) else AddressDecoder(supportCases.values.toList)
val simplified = supportCases.mapValues(seq => AddressSet.unify(seq.map(_.widen(~mask)).distinct))
simplified.map { case (s, a) =>
(Bool(Some(s) == range) || s.containsLg(lgSize)) &&
a.map(_.contains(address)).reduce(_||_)
}.foldLeft(Bool(false))(_||_)
}
// Check for support of a given operation at a specific address
val supportsAcquireTSafe = safe_helper(_.supportsAcquireT) _
val supportsAcquireBSafe = safe_helper(_.supportsAcquireB) _
val supportsArithmeticSafe = safe_helper(_.supportsArithmetic) _
val supportsLogicalSafe = safe_helper(_.supportsLogical) _
val supportsGetSafe = safe_helper(_.supportsGet) _
val supportsPutFullSafe = safe_helper(_.supportsPutFull) _
val supportsPutPartialSafe = safe_helper(_.supportsPutPartial) _
val supportsHintSafe = safe_helper(_.supportsHint) _
def supportsAcquireTSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsAcquireT, address, lgSize, range)
def supportsAcquireBSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsAcquireB, address, lgSize, range)
def supportsArithmeticSafe(address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsArithmetic, address, lgSize, range)
def supportsLogicalSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsLogical, address, lgSize, range)
def supportsGetSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsGet, address, lgSize, range)
def supportsPutFullSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsPutFull, address, lgSize, range)
def supportsPutPartialSafe(address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsPutPartial, address, lgSize, range)
def supportsHintSafe (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(true, _.supportsHint, address, lgSize, range)
val supportsAcquireTFast = fast_helper(_.supportsAcquireT) _
val supportsAcquireBFast = fast_helper(_.supportsAcquireB) _
val supportsArithmeticFast = fast_helper(_.supportsArithmetic) _
val supportsLogicalFast = fast_helper(_.supportsLogical) _
val supportsGetFast = fast_helper(_.supportsGet) _
val supportsPutFullFast = fast_helper(_.supportsPutFull) _
val supportsPutPartialFast = fast_helper(_.supportsPutPartial) _
val supportsHintFast = fast_helper(_.supportsHint) _
def supportsAcquireTFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsAcquireT, address, lgSize, range)
def supportsAcquireBFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsAcquireB, address, lgSize, range)
def supportsArithmeticFast(address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsArithmetic, address, lgSize, range)
def supportsLogicalFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsLogical, address, lgSize, range)
def supportsGetFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsGet, address, lgSize, range)
def supportsPutFullFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsPutFull, address, lgSize, range)
def supportsPutPartialFast(address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsPutPartial, address, lgSize, range)
def supportsHintFast (address: UInt, lgSize: UInt, range: Option[TransferSizes] = None) = supportHelper(false, _.supportsHint, address, lgSize, range)
}
case class TLClientParameters(