Add makeStrb to AXI4Stream bundle.

If there's no strb field, we need a convenient way to construct the default strb, an all-ones mask of n bits.
ucb-bar · Oct 10, 2018 · ebb058c · ebb058c
1 parent e9a5662
commit ebb058c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/rocket/src/main/scala/amba/axi4stream/Bundles.scala b/rocket/src/main/scala/amba/axi4stream/Bundles.scala
@@ -23,6 +23,8 @@ class AXI4StreamBundlePayload(params: AXI4StreamBundleParameters) extends AXI4St
   val id   = Output(UInt(params.i.W))
   val dest = Output(UInt(params.d.W))
   val user = Output(UInt(params.u.W))
+
+  def makeStrb: UInt = if (params.hasStrb) strb else ((BigInt(1) << params.n) - 1).U
 }
 
 /**