From 25091003af7d15edfdcf868694e4ba610f322406 Mon Sep 17 00:00:00 2001
From: Andrew Waterman <waterman@cs.berkeley.edu>
Date: Thu, 10 Mar 2016 17:40:21 -0800
Subject: [PATCH] Add RV32 test/configuration options

These won't actually work until further commits.  Rocket RV32 support
is complete, but on the priv-1.9 branch.
---
 src/main/scala/Configs.scala | 16 ++++++++++++++--
 src/main/scala/Testing.scala | 13 +++++++++++--
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/main/scala/Configs.scala b/src/main/scala/Configs.scala
index 4332ac15..3511ffc7 100644
--- a/src/main/scala/Configs.scala
+++ b/src/main/scala/Configs.scala
@@ -149,8 +149,11 @@ class DefaultConfig extends Config (
           case OuterTLId => "L2toMC" })))
       //Tile Constants
       case BuildTiles => {
-        TestGeneration.addSuites(rv64i.map(_("p")))
-        TestGeneration.addSuites((if(site(UseVM)) List("pt","v") else List("pt")).flatMap(env => rv64u.map(_(env))))
+        val (rvi, rvu) =
+          if (site(XLen) == 64) (rv64i, rv64u)
+          else (rv32i, rv32u)
+        TestGeneration.addSuites(rvi.map(_("p")))
+        TestGeneration.addSuites((if(site(UseVM)) List("pt","v") else List("pt")).flatMap(env => rvu.map(_(env))))
         TestGeneration.addSuites(if(site(NTiles) > 1) List(mtBmarks, bmarks) else List(bmarks))
         List.fill(site(NTiles)){ (r: Bool, p: Parameters) =>
           Module(new RocketTile(resetSignal = r)(p.alterPartial({case TLId => "L1toL2"})))
@@ -352,6 +355,13 @@ class WithZscale extends Config(
   }
 )
 
+class WithRV32 extends Config(
+  (pname,site,here) => pname match {
+    case XLen => 32
+    case UseFPU => false
+  }
+)
+
 class ZscaleConfig extends Config(new WithZscale ++ new DefaultConfig)
 
 class FPGAConfig extends Config (
@@ -380,6 +390,8 @@ class SmallConfig extends Config (
 
 class DefaultFPGASmallConfig extends Config(new SmallConfig ++ new DefaultFPGAConfig)
 
+class DefaultRV32Config extends Config(new WithRV32 ++ new DefaultConfig)
+
 class ExampleSmallConfig extends Config(new SmallConfig ++ new DefaultConfig)
 
 class DualBankConfig extends Config(new With2BanksPerMemChannel ++ new DefaultConfig)
diff --git a/src/main/scala/Testing.scala b/src/main/scala/Testing.scala
index 1ddadd18..e3dd2491 100644
--- a/src/main/scala/Testing.scala
+++ b/src/main/scala/Testing.scala
@@ -137,6 +137,15 @@ object DefaultTestSuites {
   val rv32uaNames = LinkedHashSet("amoadd_w", "amoand_w", "amoor_w", "amoxor_w", "amoswap_w", "amomax_w", "amomaxu_w", "amomin_w", "amominu_w")
   val rv32ua = new AssemblyTestSuite("rv32ua", "rv32ui", rv32uaNames)(_)
 
+  val rv32siNames = LinkedHashSet("csr", "ma_fetch", "scall", "sbreak", "wfi")
+  val rv32si = new AssemblyTestSuite("rv32si", "rv32si", rv32siNames)(_)
+
+  val rv32miNames = LinkedHashSet("csr", "mcsr", "wfi", "dirty", "illegal", "ma_addr", "ma_fetch", "sbreak", "scall", "timer")
+  val rv32mi = new AssemblyTestSuite("rv32mi", "rv32mi", rv32miNames)(_)
+
+  val rv32u = List(rv32ui, rv32um, rv32ua)
+  val rv32i = List(rv32ui, rv32si, rv32mi)
+
   val rv64uiNames = LinkedHashSet("addw", "addiw", "ld", "lwu", "sd", "slliw", "sllw", "sltiu", "sltu", "sraiw", "sraw", "srliw", "srlw", "subw")
   val rv64ui = new AssemblyTestSuite("rv64ui", "rv64ui", rv32uiNames ++ rv64uiNames)(_)
 
@@ -150,10 +159,10 @@ object DefaultTestSuites {
   val rv64uf = new AssemblyTestSuite("rv64uf", "rv64uf", rv64ufNames)(_)
   val rv64ufNoDiv = new AssemblyTestSuite("rv64uf", "rv64uf", rv64ufNames - "fdiv")(_)
 
-  val rv64siNames = LinkedHashSet("csr", "illegal", "ma_fetch", "ma_addr", "scall", "sbreak", "wfi")
+  val rv64siNames = rv32siNames
   val rv64si = new AssemblyTestSuite("rv64si", "rv64si", rv64siNames)(_)
 
-  val rv64miNames = LinkedHashSet("csr", "mcsr", "wfi", "dirty", "illegal", "ma_addr", "ma_fetch", "sbreak", "scall", "timer")
+  val rv64miNames = rv32miNames
   val rv64mi = new AssemblyTestSuite("rv64mi", "rv64mi", rv64miNames)(_)
 
   // TODO: "rv64ui-pm-lrsc", "rv64mi-pm-ipi",