tilelink2: maxLgSize should be accurate (#332)

2016-09-22 22:06:22 -07:00
parent 7ee79efc15
commit 47843d8ec1
2 changed files with 7 additions and 3 deletions
--- a/src/main/scala/uncore/tilelink2/Edges.scala
+++ b/src/main/scala/uncore/tilelink2/Edges.scala
@ -216,8 +216,12 @@ class TLEdge(
    x match {
      case _: TLBundleE => UInt(0)
      case bundle: TLDataChannel => {
-        val decode = UIntToOH1(size(bundle), maxLgSize) >> log2Ceil(manager.beatBytes)
-        Mux(hasData(bundle), decode, UInt(0))
+        if (maxLgSize == 0) {
+          UInt(0)
+        } else {
+          val decode = UIntToOH1(size(bundle), maxLgSize) >> log2Ceil(manager.beatBytes)
+          Mux(hasData(bundle), decode, UInt(0))
+        }
      }
    }
  }