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tilelink2: TLMonitor will not create giant wires

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This commit is contained in:
Wesley W. Terpstra 2017-06-13 15:35:22 -07:00
parent 8264c0a77e
commit 94f85e8bc8
1 changed files with 14 additions and 3 deletions
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17
src/main/scala/uncore/tilelink2/Monitor.scala
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@ -466,10 +466,21 @@ class TLMonitor(args: TLMonitorArgs) extends TLMonitorBase(args)
}
def legalizeUnique(bundle: TLBundleSnoop, edge: TLEdge)(implicit sourceInfo: SourceInfo) {
legalizeADSource(bundle, edge)
if (edge.client.anySupportProbe && edge.manager.anySupportAcquireB) {
val sourceBits = log2Ceil(edge.client.endSourceId)
val tooBig = 14 // >16kB worth of flight information gets to be too much
if (sourceBits > tooBig) {
println(s"WARNING: TLMonitor instantiated on a bus with source bits (${sourceBits}) > ${tooBig}; A=>D transaction flight will not be checked")
} else {
legalizeADSource(bundle, edge)
}
if (edge.client.anySupportProbe && edge.manager.anySupportAcquireB && edge.manager.endSinkId > 1) {
// legalizeBCSourceAddress(bundle, edge) // too much state needed to synthesize...
if (edge.manager.endSinkId > 1) legalizeDESink(bundle, edge)
val sinkBits = log2Ceil(edge.manager.endSinkId)
if (sinkBits > tooBig) {
println(s"WARNING: TLMonitor instantiated on a bus with sink bits (${sinkBits}) > ${tooBig}; D=>E transaction flight will not be checked")
} else {
legalizeDESink(bundle, edge)
}
}
}