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tilelink2 Buffer: support an unlimited number of channels

This commit is contained in:
Wesley W. Terpstra 2016-09-09 11:08:39 -07:00
parent 395bc16da6
commit 5604049927
1 changed files with 16 additions and 18 deletions
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34
src/main/scala/uncore/tilelink2/Buffer.scala
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@ -14,25 +14,23 @@ class TLBuffer(entries: Int = 2, pipe: Boolean = false) extends LazyModule
val in = node.bundleIn
val out = node.bundleOut
}
val in = io.in(0)
val out = io.out(0)
out.a <> Queue(in .a, entries, pipe)
in .d <> Queue(out.d, entries, pipe)
val edge = node.edgesOut(0) // same as edgeIn(0)
if (edge.manager.anySupportAcquire && edge.client.anySupportProbe) {
in .b <> Queue(out.b, entries, pipe)
out.c <> Queue(in .c, entries, pipe)
out.e <> Queue(out.e, entries, pipe)
} else {
in.b.valid := Bool(false)
in.c.ready := Bool(true)
in.e.ready := Bool(true)
out.b.ready := Bool(true)
out.c.valid := Bool(false)
out.e.valid := Bool(false)
((io.in zip io.out) zip (node.edgesIn zip node.edgesOut)) foreach { case ((in, out), (edgeIn, edgeOut)) =>
out.a <> Queue(in .a, entries, pipe)
in .d <> Queue(out.d, entries, pipe)
if (edgeOut.manager.anySupportAcquire && edgeOut.client.anySupportProbe) {
in .b <> Queue(out.b, entries, pipe)
out.c <> Queue(in .c, entries, pipe)
out.e <> Queue(out.e, entries, pipe)
} else {
in.b.valid := Bool(false)
in.c.ready := Bool(true)
in.e.ready := Bool(true)
out.b.ready := Bool(true)
out.c.valid := Bool(false)
out.e.valid := Bool(false)
}
}
}
}