From bab504cc3fa209669e837f5c0bfa17d9bb7e2d2c Mon Sep 17 00:00:00 2001
From: Richard Xia <rxia@sifive.com>
Date: Fri, 18 Nov 2016 10:49:42 -0800
Subject: [PATCH] Add various granular and composable configs.

---
 src/main/scala/coreplex/Configs.scala   | 71 +++++++++++++++++++++++++
 src/main/scala/rocketchip/Configs.scala | 14 +++++
 2 files changed, 85 insertions(+)

diff --git a/src/main/scala/coreplex/Configs.scala b/src/main/scala/coreplex/Configs.scala
index b04556a0..2dbe8a04 100644
--- a/src/main/scala/coreplex/Configs.scala
+++ b/src/main/scala/coreplex/Configs.scala
@@ -191,6 +191,43 @@ class WithNTrackersPerBank(n: Int) extends Config(
     case _ => throw new CDEMatchError
   })
 
+// This is the number of sets **per way**
+class WithL1ICacheSets(sets: Int) extends Config (
+  knobValues = {
+    case "L1I_SETS" => sets
+    case _ => throw new CDEMatchError
+  }
+)
+
+// This is the number of sets **per way**
+class WithL1DCacheSets(sets: Int) extends Config (
+  knobValues = {
+    case "L1D_SETS" => sets
+    case _ => throw new CDEMatchError
+  }
+)
+
+class WithL1ICacheWays(ways: Int) extends Config (
+  knobValues = {
+    case "L1I_WAYS" => ways
+    case _ => throw new CDEMatchError
+  }
+)
+
+class WithL1DCacheWays(ways: Int) extends Config (
+  knobValues = {
+    case "L1D_WAYS" => ways
+    case _ => throw new CDEMatchError
+  }
+)
+
+class WithCacheBlockBytes(linesize: Int) extends Config (
+  topDefinitions = { (pname,site,here) => pname match {
+    case CacheBlockBytes => Dump("CACHE_BLOCK_BYTES", linesize)
+    case _ => throw new CDEMatchError
+  }}
+)
+
 class WithDataScratchpad(n: Int) extends Config(
   (pname,site,here) => pname match {
     case DataScratchpadSize => n
@@ -332,3 +369,37 @@ class WithRoccExample extends Config(
 
 class WithSplitL2Metadata extends Config(
   knobValues = { case "L2_SPLIT_METADATA" => true; case _ => throw new CDEMatchError })
+
+class WithDefaultBtb extends Config (
+  topDefinitions = { (pname,site,here) => pname match {
+    case BtbKey => BtbParameters()
+    case _ => throw new CDEMatchError
+  }}
+)
+
+class WithFastMulDiv extends Config (
+  topDefinitions = { (pname,site,here) => pname match {
+    case MulDivKey => Some(MulDivConfig(mulUnroll = 8, mulEarlyOut = (site(XLen) > 32), divEarlyOut = true))
+    case _ => throw new CDEMatchError
+  }}
+)
+
+class WithoutMulDiv extends Config (
+  (pname, site, here) => pname match {
+    case MulDivKey => None
+    case _ => throw new CDEMatchError
+  }
+)
+
+class WithoutFPU extends Config(
+  (pname, site, here) => pname match {
+    case FPUKey => None
+    case _ => throw new CDEMatchError
+  })
+
+class WithFPUWithoutDivSqrt extends Config (
+  (pname, site, here) => pname match {
+    case FPUKey => Some(FPUConfig(divSqrt = false))
+    case _ => throw new CDEMatchError
+  }
+)
diff --git a/src/main/scala/rocketchip/Configs.scala b/src/main/scala/rocketchip/Configs.scala
index 92643944..32853a42 100644
--- a/src/main/scala/rocketchip/Configs.scala
+++ b/src/main/scala/rocketchip/Configs.scala
@@ -199,3 +199,17 @@ class WithoutTLMonitors extends Config (
     case _ => throw new CDEMatchError
   }
 )
+
+class WithNExtTopInterrupts(nExtInts: Int) extends Config(
+  (pname, site, here) => pname match {
+    case NExtTopInterrupts => nExtInts
+    case _ => throw new CDEMatchError
+  }
+)
+
+class WithNBreakpoints(hwbp: Int) extends Config (
+  (pname,site,here) => pname match {
+    case NBreakpoints => hwbp
+    case _ => throw new CDEMatchError
+  }
+)