From f35b83d3ca271c017164690db072048bab253b77 Mon Sep 17 00:00:00 2001
From: Howard Mao <zhehao.mao@gmail.com>
Date: Wed, 2 Dec 2015 17:18:39 -0800
Subject: [PATCH] allow configuration of rocket ICache buffering

---
 rocket                       | 2 +-
 src/main/scala/Configs.scala | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/rocket b/rocket
index 57cc12f1..b08f86b4 160000
--- a/rocket
+++ b/rocket
@@ -1 +1 @@
-Subproject commit 57cc12f1b2f81708424c51c6a7d149b1c92372b6
+Subproject commit b08f86b4fb9ef44d27ddda1b038e0d1cc15f0b24
diff --git a/src/main/scala/Configs.scala b/src/main/scala/Configs.scala
index 5cb29101..a84ec2cf 100644
--- a/src/main/scala/Configs.scala
+++ b/src/main/scala/Configs.scala
@@ -89,6 +89,7 @@ class DefaultConfig extends Config (
       case RowBits => findBy(CacheName)
       case NTLBEntries => findBy(CacheName)
       case CacheIdBits => findBy(CacheName)
+      case ICacheBufferWays => Knob("L1I_BUFFER_WAYS")
       case "L1I" => {
         case NSets => Knob("L1I_SETS") //64
         case NWays => Knob("L1I_WAYS") //4
@@ -207,6 +208,7 @@ class DefaultConfig extends Config (
     case "L1D_WAYS" => 4
     case "L1I_SETS" => 64
     case "L1I_WAYS" => 4
+    case "L1I_BUFFER_WAYS" => false
   }
 )
 class DefaultVLSIConfig extends DefaultConfig