From f35a6a574f3386d282f9fcd9ef1fd692fe9e9c1c Mon Sep 17 00:00:00 2001
From: Henry Cook <hcook@eecs.berkeley.edu>
Date: Mon, 16 Mar 2015 13:25:01 -0700
Subject: [PATCH] Add a queue on released data coming in to L2

---
 uncore/src/main/scala/cache.scala | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/uncore/src/main/scala/cache.scala b/uncore/src/main/scala/cache.scala
index 8c65a20f..bc12cfeb 100644
--- a/uncore/src/main/scala/cache.scala
+++ b/uncore/src/main/scala/cache.scala
@@ -322,14 +322,22 @@ class L2HellaCacheBank(bankId: Int) extends HierarchicalCoherenceAgent
   require(isPow2(nWays)) 
 
   val tshrfile = Module(new TSHRFile(bankId))
-  val meta = Module(new L2MetadataArray)
-  val data = Module(new L2DataArray(1))
 
-  tshrfile.io.inner <> io.inner
-  tshrfile.io.meta <> meta.io
-  tshrfile.io.data <> data.io
+  //TODO: Expose queue depths and data array pipeline cycles as parameters?
+  tshrfile.io.inner.acquire <> io.inner.acquire
+  tshrfile.io.inner.probe <> io.inner.probe
+  tshrfile.io.inner.release <> Queue(io.inner.release)
+  tshrfile.io.inner.grant <> io.inner.grant
+  tshrfile.io.inner.finish <> io.inner.finish
+
   io.outer <> tshrfile.io.outer
   io.incoherent <> tshrfile.io.incoherent
+
+  val meta = Module(new L2MetadataArray)
+  tshrfile.io.meta <> meta.io
+
+  val data = Module(new L2DataArray(1))
+  tshrfile.io.data <> data.io
 }
 
 class TSHRFileIO extends HierarchicalTLIO {