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diplomacy: categorize parameter resolution by direction+side

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This commit is contained in:
Wesley W. Terpstra 2017-11-02 17:12:20 -07:00
parent fbbfc9c096
commit 1f23f9f865
1 changed files with 14 additions and 10 deletions
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24
src/main/scala/diplomacy/Nodes.scala
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@ -207,7 +207,8 @@ trait InwardNode[DI, UI, BI <: Data] extends BaseNode
protected[diplomacy] val iStar: Int
protected[diplomacy] val iPortMapping: Seq[(Int, Int)]
protected[diplomacy] val iParams: Seq[UI]
protected[diplomacy] val diParams: Seq[DI] // from connected nodes
protected[diplomacy] val uiParams: Seq[UI] // from this node
protected[diplomacy] def bind(h: OutwardNode[DI, UI, BI], binding: NodeBinding)(implicit p: Parameters, sourceInfo: SourceInfo): Unit
}
@ -240,7 +241,8 @@ trait OutwardNode[DO, UO, BO <: Data] extends BaseNode
protected[diplomacy] val oStar: Int
protected[diplomacy] val oPortMapping: Seq[(Int, Int)]
protected[diplomacy] val oParams: Seq[DO]
protected[diplomacy] val uoParams: Seq[UO] // from connected nodes
protected[diplomacy] val doParams: Seq[DO] // from this node
}
abstract class CycleException(kind: String, loop: Seq[String]) extends Exception(s"Diplomatic ${kind} cycle detected involving ${loop}")
@ -307,11 +309,12 @@ sealed abstract class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
}
private var oParamsCycleGuard = false
protected[diplomacy] lazy val oParams: Seq[DO] = {
protected[diplomacy] lazy val diParams: Seq[DI] = iPorts.map { case (i, n, _, _) => n.doParams(i) }
protected[diplomacy] lazy val doParams: Seq[DO] = {
try {
if (oParamsCycleGuard) throw DownwardCycleException()
oParamsCycleGuard = true
val o = mapParamsD(oPorts.size, iPorts.map { case (i, n, _, _) => n.oParams(i) })
val o = mapParamsD(oPorts.size, diParams)
require (o.size == oPorts.size, s"Bug in diplomacy; ${name} has ${o.size} != ${oPorts.size} down/up outer parameters${lazyModule.line}")
o.map(outer.mixO(_, this))
} catch {
@ -320,11 +323,12 @@ sealed abstract class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
}
private var iParamsCycleGuard = false
protected[diplomacy] lazy val iParams: Seq[UI] = {
protected[diplomacy] lazy val uoParams: Seq[UO] = oPorts.map { case (o, n, _, _) => n.uiParams(o) }
protected[diplomacy] lazy val uiParams: Seq[UI] = {
try {
if (iParamsCycleGuard) throw UpwardCycleException()
iParamsCycleGuard = true
val i = mapParamsU(iPorts.size, oPorts.map { case (o, n, _, _) => n.iParams(o) })
val i = mapParamsU(iPorts.size, uoParams)
require (i.size == iPorts.size, s"Bug in diplomacy; ${name} has ${i.size} != ${iPorts.size} up/down inner parameters${lazyModule.line}")
i.map(inner.mixI(_, this))
} catch {
@ -332,11 +336,11 @@ sealed abstract class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
}
}
protected[diplomacy] def gco = if (iParams.size != 1) None else inner.getO(iParams(0))
protected[diplomacy] def gci = if (oParams.size != 1) None else outer.getI(oParams(0))
protected[diplomacy] def gco = if (uiParams.size != 1) None else inner.getO(uiParams(0))
protected[diplomacy] def gci = if (doParams.size != 1) None else outer.getI(doParams(0))
protected[diplomacy] lazy val edgesOut = (oPorts zip oParams).map { case ((i, n, p, s), o) => outer.edgeO(o, n.iParams(i), p, s) }
protected[diplomacy] lazy val edgesIn = (iPorts zip iParams).map { case ((o, n, p, s), i) => inner.edgeI(n.oParams(o), i, p, s) }
protected[diplomacy] lazy val edgesOut = (oPorts zip doParams).map { case ((i, n, p, s), o) => outer.edgeO(o, n.uiParams(i), p, s) }
protected[diplomacy] lazy val edgesIn = (iPorts zip uiParams).map { case ((o, n, p, s), i) => inner.edgeI(n.doParams(o), i, p, s) }
// If you need access to the edges of a foreign Node, use this method (in/out create bundles)
lazy val edges = Edges(edgesIn, edgesOut)