From 38a464a8296c3cb2b2b5fca84163c76790d13a72 Mon Sep 17 00:00:00 2001
From: Charles Papon <charles.papon.90@gmail.com>
Date: Sat, 25 May 2019 00:28:30 +0200
Subject: [PATCH] DataCache now allocate ways randomly

---
 src/main/scala/vexriscv/ip/DataCache.scala | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/vexriscv/ip/DataCache.scala b/src/main/scala/vexriscv/ip/DataCache.scala
index 9239cf5..f692680 100644
--- a/src/main/scala/vexriscv/ip/DataCache.scala
+++ b/src/main/scala/vexriscv/ip/DataCache.scala
@@ -678,11 +678,13 @@ class DataCache(p : DataCacheConfig) extends Component{
       tagsWriteCmd.data.error := error || io.mem.rsp.error
       tagsWriteCmd.way := waysAllocator
 
-      waysAllocator := (waysAllocator ## waysAllocator.msb).resized
-
       error := False
     }
 
+    when(!valid){
+      waysAllocator := (waysAllocator ## waysAllocator.msb).resized
+    }
+
     io.cpu.redo setWhen(valid)
     stageB.mmuRspFreeze setWhen(stageB.loaderValid || valid)
   }