revert to smaller boom config and support in ci

.circleci/config.yml

@@ -153,7 +153,7 @@ jobs:
 
             - run:
                 name: Building the boomexample subproject using Verilator
-                command: .circleci/do-rtl-build.sh boomexample
+                command: .circleci/do-rtl-build.sh boomexample SmallDefaultBoomConfig
                 no_output_timeout: 120m
 
             - save_cache:

.circleci/do-rtl-build.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
-# create the different verilator builds arg (subproject)
+# create the different verilator builds
+# 1st argument is the subproject
+# 2nd argument is the config (can be unspecified)
 
 # turn echo on and error on earliest command
 set -ex
@@ -12,6 +14,18 @@ cd $HOME/project
 # enter the verisim directory and build the specific config
 cd sims/verisim
 make clean
+
+# run the particular build command
+if [ $# -ne 0 ]; then
+  if [ $# -eq 1 ]; then
     make SUB_PROJECT=$1 JAVA_ARGS="-Xmx2G -Xss8M"
+  elif [ $# -eq 2 ]; then
+    make SUB_PROJECT=$1 CONFIG=$2 JAVA_ARGS="-Xmx2G -Xss8M"
+  else
+    exit 1 # wrong amount of args
+  fi
+else
+  exit 1 # need to provide at least the arg
+fi
 
 rm -rf ../../project

generators/example/src/main/scala/Configs.scala

@@ -68,10 +68,18 @@ class BaseBoomConfig extends Config(
   new WithBootROM ++
   new boom.system.BoomConfig)
 
+class SmallBaseBoomConfig extends Config(
+  new WithBootROM ++
+  new boom.system.SmallBoomConfig)
+
 class DefaultBoomConfig extends Config(
   new WithNormalBoomTop ++
   new BaseBoomConfig)
 
+class SmallDefaultBoomConfig extends Config(
+  new WithNormalBoomTop ++
+  new SmallBaseBoomConfig)
+
 class HwachaBoomConfig extends Config(
   new hwacha.DefaultHwachaConfig ++
   new DefaultBoomConfig)