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[tilelink2] Convert TileLink2 to use IrrevocableIO. Add checks to the Monitor to enforce Irrevocable semantics on TLEdges. Update the RegisterRouterTests to pass the new Monitor assertions.

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This commit is contained in:
Henry Cook
2016-09-14 17:43:07 -07:00
parent 3030718f72
commit e02d149cbe
8 changed files with 90 additions and 46 deletions
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10
src/main/scala/uncore/tilelink2/Crossing.scala
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@@ -22,13 +22,13 @@ class TLAsyncCrossing(depth: Int = 8, sync: Int = 3) extends LazyModule
// Transfer all TL2 bundles from/to the same domains
((io.in zip io.out) zip (node.edgesIn zip node.edgesOut)) foreach { case ((in, out), (edgeIn, edgeOut)) =>
out.a <> AsyncDecoupledCrossing(io.in_clock, io.in_reset, in.a, io.out_clock, io.out_reset, depth, sync)
in.d <> AsyncDecoupledCrossing(io.out_clock, io.out_reset, out.d, io.in_clock, io.in_reset, depth, sync)
out.a <> AsyncIrrevocableCrossing(io.in_clock, io.in_reset, in.a, io.out_clock, io.out_reset, depth, sync)
in.d <> AsyncIrrevocableCrossing(io.out_clock, io.out_reset, out.d, io.in_clock, io.in_reset, depth, sync)
if (edgeOut.manager.anySupportAcquire && edgeOut.client.anySupportProbe) {
in.b <> AsyncDecoupledCrossing(io.out_clock, io.out_reset, out.b, io.in_clock, io.in_reset, depth, sync)
out.c <> AsyncDecoupledCrossing(io.in_clock, io.in_reset, in.c, io.out_clock, io.out_reset, depth, sync)
out.e <> AsyncDecoupledCrossing(io.in_clock, io.in_reset, in.e, io.out_clock, io.out_reset, depth, sync)
in.b <> AsyncIrrevocableCrossing(io.out_clock, io.out_reset, out.b, io.in_clock, io.in_reset, depth, sync)
out.c <> AsyncIrrevocableCrossing(io.in_clock, io.in_reset, in.c, io.out_clock, io.out_reset, depth, sync)
out.e <> AsyncIrrevocableCrossing(io.in_clock, io.in_reset, in.e, io.out_clock, io.out_reset, depth, sync)
} else {
in.b.valid := Bool(false)
in.c.ready := Bool(true)