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diplomacy: make :=* and :*= resolution more flexible

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This commit is contained in:
Wesley W. Terpstra 2017-05-19 12:52:01 -07:00
parent cdbf67be68
commit c695237050
1 changed files with 27 additions and 33 deletions
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58
src/main/scala/diplomacy/Nodes.scala
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@ -159,15 +159,13 @@ abstract class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
protected[diplomacy] val numPI: Range.Inclusive)
extends BaseNode with InwardNode[DI, UI, BI] with OutwardNode[DO, UO, BO]
{
protected[diplomacy] def resolveStarO(i: Int, o: Int): Int
protected[diplomacy] def resolveStarI(i: Int, o: Int): Int
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStar: Int, oStar: Int): (Int, Int)
protected[diplomacy] def mapParamsD(n: Int, p: Seq[DI]): Seq[DO]
protected[diplomacy] def mapParamsU(n: Int, p: Seq[UO]): Seq[UI]
protected[diplomacy] lazy val (oPortMapping, iPortMapping, oStar, iStar) = {
val oStars = oBindings.filter { case (_,_,b) => b == BIND_STAR }.size
val iStars = iBindings.filter { case (_,_,b) => b == BIND_STAR }.size
require (oStars + iStars <= 1, s"${name} appears beside a :*= ${iStars} times and a :=* ${oStars} times; at most once is allowed${lazyModule.line}")
val oKnown = oBindings.map { case (_, n, b) => b match {
case BIND_ONCE => 1
case BIND_QUERY => n.iStar
@ -176,8 +174,7 @@ abstract class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
case BIND_ONCE => 1
case BIND_QUERY => n.oStar
case BIND_STAR => 0 }}.foldLeft(0)(_+_)
val oStar = if (oStars > 0) resolveStarO(iKnown, oKnown) else 0
val iStar = if (iStars > 0) resolveStarI(iKnown, oKnown) else 0
val (iStar, oStar) = resolveStar(iKnown, oKnown, iStars, oStars)
val oSum = oBindings.map { case (_, n, b) => b match {
case BIND_ONCE => 1
case BIND_QUERY => n.iStar
@ -285,13 +282,15 @@ class MixedAdapterNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
val externalIn: Boolean = true
val externalOut: Boolean = true
protected[diplomacy] def resolveStarO(i: Int, o: Int): Int = {
require (i >= o, s"${name} has ${o} outputs and ${i} inputs; cannot assign ${i-o} edges to resolve :=*${lazyModule.line}")
i - o
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStars: Int, oStars: Int): (Int, Int) = {
require (oStars + iStars <= 1, s"${name} (an adapter) appears left of a :*= ${iStars} times and right of a :=* ${oStars} times; at most once is allowed${lazyModule.line}")
if (oStars > 0) {
require (iKnown >= oKnown, s"${name} (an adapter) has ${oKnown} outputs and ${iKnown} inputs; cannot assign ${iKnown-oKnown} edges to resolve :=*${lazyModule.line}")
(0, iKnown - oKnown)
} else {
require (oKnown >= iKnown, s"${name} (an adapter) has ${oKnown} outputs and ${iKnown} inputs; cannot assign ${oKnown-iKnown} edges to resolve :*=${lazyModule.line}")
(oKnown - iKnown, 0)
}
protected[diplomacy] def resolveStarI(i: Int, o: Int): Int = {
require (o >= i, s"${name} has ${o} outputs and ${i} inputs; cannot assign ${o-i} edges to resolve :*=${lazyModule.line}")
o - i
}
protected[diplomacy] def mapParamsD(n: Int, p: Seq[DI]): Seq[DO] = {
require(n == p.size, s"${name} has ${p.size} inputs and ${n} outputs; they must match${lazyModule.line}")
@ -318,13 +317,10 @@ class MixedNexusNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
val externalIn: Boolean = true
val externalOut: Boolean = true
protected[diplomacy] def resolveStarO(i: Int, o: Int): Int = {
require (false, "${name} cannot resolve :=*${lazyModule.line}")
0
}
protected[diplomacy] def resolveStarI(i: Int, o: Int): Int = {
require (false, s"${name} cannot resolve :*=${lazyModule.line}")
0
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStars: Int, oStars: Int): (Int, Int) = {
require (iStars == 0, s"${name} (a nexus) appears left of :*= (perhaps you should flip the '*' to :=*?)${lazyModule.line}")
require (oStars == 0, s"${name} (a nexus) appears right of a :=* (perhaps you should flip the '*' to :*=?)${lazyModule.line}")
(0, 0)
}
protected[diplomacy] def mapParamsD(n: Int, p: Seq[DI]): Seq[DO] = Seq.fill(n) { dFn(p) }
protected[diplomacy] def mapParamsU(n: Int, p: Seq[UO]): Seq[UI] = Seq.fill(n) { uFn(p) }
@ -367,13 +363,12 @@ class SourceNode[D, U, EO, EI, B <: Data](imp: NodeImp[D, U, EO, EI, B])(po: Seq
override val externalIn: Boolean = false
override val externalOut: Boolean = true
protected[diplomacy] def resolveStarO(i: Int, o: Int): Int = {
require (po.size >= o, s"${name} has ${o} outputs out of ${po.size}; cannot assign ${po.size - o} edges to resolve :=*${lazyModule.line}")
po.size - o
}
protected[diplomacy] def resolveStarI(i: Int, o: Int): Int = {
require (false, s"${name} cannot resolve :*=${lazyModule.line}")
0
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStars: Int, oStars: Int): (Int, Int) = {
require (oStars <= 1, s"${name} (a source) appears right of a :=* ${oStars} times; at most once is allowed${lazyModule.line}")
require (iStars == 0, s"${name} (a source) cannot appear left of a :*=${lazyModule.line}")
require (iKnown == 0, s"${name} (a source) cannot appear left of a :=${lazyModule.line}")
require (po.size >= oKnown, s"${name} (a source) has ${oKnown} outputs out of ${po.size}; cannot assign ${po.size - oKnown} edges to resolve :=*${lazyModule.line}")
(0, po.size - oKnown)
}
protected[diplomacy] def mapParamsD(n: Int, p: Seq[D]): Seq[D] = po
protected[diplomacy] def mapParamsU(n: Int, p: Seq[U]): Seq[U] = Seq()
@ -387,13 +382,12 @@ class SinkNode[D, U, EO, EI, B <: Data](imp: NodeImp[D, U, EO, EI, B])(pi: Seq[U
override val externalIn: Boolean = true
override val externalOut: Boolean = false
protected[diplomacy] def resolveStarO(i: Int, o: Int): Int = {
require (false, s"${name} cannot resolve :=*${lazyModule.line}")
0
}
protected[diplomacy] def resolveStarI(i: Int, o: Int): Int = {
require (pi.size >= i, s"${name} has ${i} inputs out of ${pi.size}; cannot assign ${pi.size - i} edges to resolve :*=${lazyModule.line}")
pi.size - i
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStars: Int, oStars: Int): (Int, Int) = {
require (iStars <= 1, s"${name} (a sink) appears left of a :*= ${iStars} times; at most once is allowed${lazyModule.line}")
require (oStars == 0, s"${name} (a sink) cannot appear right of a :=*${lazyModule.line}")
require (oKnown == 0, s"${name} (a sink) cannot appear right of a :=${lazyModule.line}")
require (pi.size >= iKnown, s"${name} (a sink) has ${iKnown} inputs out of ${pi.size}; cannot assign ${pi.size - iKnown} edges to resolve :*=${lazyModule.line}")
(pi.size - iKnown, 0)
}
protected[diplomacy] def mapParamsD(n: Int, p: Seq[D]): Seq[D] = Seq()
protected[diplomacy] def mapParamsU(n: Int, p: Seq[U]): Seq[U] = pi