IntNodes: moved from tilelink to their own package

src/main/scala/interrupts/Xbar.scala

@@ -0,0 +1,23 @@
+// See LICENSE.SiFive for license details.
+
+package freechips.rocketchip.interrupts
+
+import Chisel._
+import freechips.rocketchip.config.Parameters
+import freechips.rocketchip.diplomacy._
+
+class IntXbar()(implicit p: Parameters) extends LazyModule
+{
+  val intnode = IntNexusNode(
+    sinkFn         = { _ => IntSinkPortParameters(Seq(IntSinkParameters())) },
+    sourceFn       = { seq =>
+      IntSourcePortParameters((seq zip seq.map(_.num).scanLeft(0)(_+_).init).map {
+        case (s, o) => s.sources.map(z => z.copy(range = z.range.offset(o)))
+      }.flatten)
+    })
+
+  lazy val module = new LazyModuleImp(this) {
+    val cat = intnode.in.map { case (i, e) => i.take(e.source.num) }.flatten
+    intnode.out.foreach { case (o, _) => o := cat }
+  }
+}