riscv/rocket-chip
1
0
Fork 0
Code Releases Activity

tilelink2 Parameters: sinkId is per port, not per manager

Browse Source
This commit is contained in:
Wesley W. Terpstra
2016-11-02 17:53:32 -07:00
parent 1b016051e8
commit d067e87a7d
8 changed files with 19 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/main/scala/uncore/tilelink2/Parameters.scala
View File

@ -8,7 +8,6 @@ import scala.math.max
case class TLManagerParameters(
address: Seq[AddressSet],
sinkId: IdRange = IdRange(0, 1),
regionType: RegionType.T = RegionType.GET_EFFECTS,
executable: Boolean = false, // processor can execute from this memory
nodePath: Seq[BaseNode] = Seq(),
@ -59,22 +58,15 @@ case class TLManagerParameters(
case class TLManagerPortParameters(
managers: Seq[TLManagerParameters],
beatBytes: Int,
endSinkId: Int = 1,
minLatency: Int = 0)
{
require (!managers.isEmpty)
require (isPow2(beatBytes))
require (endSinkId > 0)
require (minLatency >= 0)
// Require disjoint ranges for Ids and addresses
managers.combinations(2).foreach({ case Seq(x,y) =>
require (!x.sinkId.overlaps(y.sinkId))
x.address.foreach({ a => y.address.foreach({ b =>
require (!a.overlaps(b))
})})
})
// Bounds on required sizes
def endSinkId = managers.map(_.sinkId.end).max
def maxAddress = managers.map(_.maxAddress).max
def maxTransfer = managers.map(_.maxTransfer).max
@ -101,12 +93,6 @@ case class TLManagerPortParameters(
// These return Option[TLManagerParameters] for your convenience
def find(address: BigInt) = managers.find(_.address.exists(_.contains(address)))
def findById(id: Int) = managers.find(_.sinkId.contains(id))
// Synthesizable lookup methods
def findById(id: UInt) = Vec(managers.map(_.sinkId.contains(id)))
def findIdStartFast(address: UInt) = Mux1H(findFast(address), managers.map(m => UInt(m.sinkId.start)))
def findIdEndFast(address: UInt) = Mux1H(findFast(address), managers.map(m => UInt(m.sinkId.end)))
// The safe version will check the entire address
def findSafe(address: UInt) = Vec(managers.map(_.address.map(_.contains(address)).reduce(_ || _)))
@ -119,8 +105,6 @@ case class TLManagerPortParameters(
// Does this Port manage this ID/address?
def containsSafe(address: UInt) = findSafe(address).reduce(_ || _)
// containsFast would be useless; it could always be true
def containsById(id: UInt) = findById(id).reduce(_ || _)
private def safe_helper(member: TLManagerParameters => TransferSizes)(address: UInt, lgSize: UInt) = {
val allSame = managers.map(member(_) == member(managers(0))).reduce(_ && _)