coreplex: fix clock crossing

src/main/scala/coreplex/Coreplex.scala

@@ -27,94 +27,17 @@ class DefaultCoreplexModule[+L <: DefaultCoreplex, +B <: DefaultCoreplexBundle[L
     with RocketPlexModule
 
 /////
-/*
-
-trait AsyncConnection {
-    this: CoreplexNetwork with CoreplexRISCVPlatform =>
-
-  val masterCrossings = lazyTiles.map { t =>
-    t.masterNodes map { m =>
-      val crossing = LazyModule(new TLAsyncCrossing)
-      crossing.node := m
-      val monitor = (cbus.node := crossing.node)
-      (crossing, monitor)
-    }
-  }
-
-  val slaveCrossings = lazyTiles.map { t =>
-    t.slaveNode map { s =>
-      val crossing = LazyModule(new TLAsyncCrossing)
-      crossing.node := cbus.node
-      val monitor = (s := crossing.node)
-      (crossing, monitor)
-    }
-  }
-}
-
-trait AsyncConnectionBundle {
-    this: CoreplexNetworkBundle with CoreplexRISCVPlatformBundle =>
-  val tcrs = Vec(nTiles, new Bundle {
-    val clock = Clock(INPUT)
-    val reset = Bool(INPUT)
-  })
-}
-
-trait AsyncConnectionModule {
-  this: Module with CoreplexNetworkModule with CoreplexRISCVPlatformModule {
-    val outer: AsyncConnection with CoreplexNetwork with CoreplexRISCVPlatform
-    val io: AsyncConnectionBundle with CoreplexNetworkBundle with CoreplexRISCVPlatformBundle
-  } =>
-
-  (outer.masterCrossings zip io.tcrs) foreach { case (masters, tcr) =>
-    masters.foreach { case (crossing, monitor) =>
-      crossing.module.io.out_clock  := clock
-      crossing.module.io.out_reset  := reset
-      crossing.module.io.in_clock := tcr.clock
-      crossing.module.io.in_reset := tcr.reset
-      monitor.foreach { m =>
-        m.module.clock := clock
-        m.module.reset := reset
-      }
-    }
-  }
-
-  (outer.slaveCrossings zip io.tcrs) foreach { case (slaves, tcr) =>
-    slaves.foreach { case (crossing, monitor) =>
-      crossing.module.io.in_clock  := clock
-      crossing.module.io.in_reset  := reset
-      crossing.module.io.out_clock := tcr.clock
-      crossing.module.io.out_reset := tcr.reset
-      monitor.foreach { m =>
-        m.module.clock := tcr.clock
-        m.module.reset := tcr.reset
-      }
-    }
-  }
-
-  (tiles.zipWithIndex, io.tcrs).zipped.foreach { case ((tile, i), tcr) =>
-    tile.clock := tcr.clock
-    tile.reset := tcr.reset
-
-    val ti = tile.io.interrupts
-    ti.debug := LevelSyncTo(tcr.clock, outer.debug.module.io.debugInterrupts(i))
-    ti.mtip := LevelSyncTo(tcr.clock, outer.clint.module.io.tiles(i).mtip)
-    ti.msip := LevelSyncTo(tcr.clock, outer.clint.module.io.tiles(i).msip)
-    ti.meip := LevelSyncTo(tcr.clock, outer.tileIntNodes(i).bundleOut(0)(0))
-    ti.seip.foreach { _ := LevelSyncTo(tcr.clock, outer.tileIntNodes(i).bundleOut(0)(1)) }
-
-    tile.io.hartid := UInt(i)
-    tile.io.resetVector := io.resetVector 
-  }
-}
 
 class MultiClockCoreplex(implicit p: Parameters) extends BaseCoreplex
-    with AsyncConnection {
+    with CoreplexRISCVPlatform
+    with AsyncRocketPlex {
   override lazy val module = new MultiClockCoreplexModule(this, () => new MultiClockCoreplexBundle(this))
 }
 
 class MultiClockCoreplexBundle[+L <: MultiClockCoreplex](_outer: L) extends BaseCoreplexBundle(_outer)
-    with AsyncConnectionBundle
+    with CoreplexRISCVPlatformBundle
+    with AsyncRocketPlexBundle
 
 class MultiClockCoreplexModule[+L <: MultiClockCoreplex, +B <: MultiClockCoreplexBundle[L]](_outer: L, _io: () => B) extends BaseCoreplexModule(_outer, _io)
-    with AsyncConnectionModule
-*/
+    with CoreplexRISCVPlatformModule
+    with AsyncRocketPlexModule

src/main/scala/coreplex/RocketPlex.scala

@@ -39,3 +39,69 @@ trait RocketPlexModule extends CoreplexRISCVPlatformModule {
     tile.io.interrupts.seip.foreach(_ := outer.tileIntNodes(i).bundleOut(0)(1))
   }
 }
+
+class AsyncRocketTile(tileId: Int)(implicit p: Parameters) extends LazyModule {
+  val rocket = LazyModule(new RocketTile(tileId))
+
+  val cachedOut = TLAsyncOutputNode()
+  val uncachedOut = TLAsyncOutputNode()
+  val slaveNode = rocket.slaveNode.map(_ => TLAsyncInputNode())
+
+  cachedOut := TLAsyncCrossingSource()(rocket.cachedOut)
+  uncachedOut := TLAsyncCrossingSource()(rocket.uncachedOut)
+  (rocket.slaveNode zip slaveNode) foreach { case (r,n) => r := TLAsyncCrossingSink()(n) }
+
+  lazy val module = new LazyModuleImp(this) {
+    val io = new Bundle {
+      val cached = cachedOut.bundleOut
+      val uncached = uncachedOut.bundleOut
+      val slave = slaveNode.map(_.bundleIn)
+      val hartid = UInt(INPUT, p(XLen))
+      val interrupts = new TileInterrupts().asInput
+      val resetVector = UInt(INPUT, p(XLen))
+    }
+    rocket.module.io.interrupts := ShiftRegister(io.interrupts, 3)
+    // signals that do not change:
+    rocket.module.io.hartid := io.hartid
+    rocket.module.io.resetVector := io.resetVector
+  }
+}
+
+trait AsyncRocketPlex extends CoreplexRISCVPlatform {
+  val module: AsyncRocketPlexModule
+
+  val rocketTiles = List.tabulate(p(NTiles)) { i => LazyModule(new AsyncRocketTile(i)) }
+  val tileIntNodes = rocketTiles.map { _ => IntInternalOutputNode() }
+
+  tileIntNodes.foreach { _ := plic.intnode }
+  rocketTiles.foreach { r =>
+    r.slaveNode.foreach { _ := TLAsyncCrossingSource()(cbus.node) }
+    l1tol2.node := TLAsyncCrossingSink()(r.cachedOut)
+    l1tol2.node := TLAsyncCrossingSink()(r.uncachedOut)
+  }
+}
+
+trait AsyncRocketPlexBundle extends CoreplexRISCVPlatformBundle {
+  val outer: CoreplexRISCVPlatform
+
+  val tcrs = Vec(nTiles, new Bundle {
+    val clock = Clock(INPUT)
+    val reset = Bool(INPUT)
+  })
+}
+
+trait AsyncRocketPlexModule extends CoreplexRISCVPlatformModule {
+  val outer: AsyncRocketPlex
+  val io: AsyncRocketPlexBundle
+
+  outer.rocketTiles.map(_.module).zipWithIndex.foreach { case (tile, i) =>
+    tile.clock := io.tcrs(i).clock
+    tile.reset := io.tcrs(i).reset
+    tile.io.hartid := UInt(i)
+    tile.io.resetVector := io.resetVector
+    tile.io.interrupts := outer.clint.module.io.tiles(i)
+    tile.io.interrupts.debug := outer.debug.module.io.debugInterrupts(i)
+    tile.io.interrupts.meip := outer.tileIntNodes(i).bundleOut(0)(0)
+    tile.io.interrupts.seip.foreach(_ := outer.tileIntNodes(i).bundleOut(0)(1))
+  }
+}