Add Copyright and License header

PerformanceMonitor.bsv

@@ -1,3 +1,31 @@
+/*-
+ * Copyright (c) 2020 Jonas Fiala
+ * All rights reserved.
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory (Department of Computer Science and
+ * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
+ * DARPA SSITH research programme.
+ *
+ * @BERI_LICENSE_HEADER_START@
+ *
+ * Licensed to BERI Open Systems C.I.C. (BERI) under one or more contributor
+ * license agreements.  See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.  BERI licenses this
+ * file to you under the BERI Hardware-Software License, Version 1.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at:
+ *
+ *   http://www.beri-open-systems.org/legal/license-1-0.txt
+ *
+ * Unless required by applicable law or agreed to in writing, Work distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations under the License.
+ *
+ * @BERI_LICENSE_HEADER_END@
+ */
+
 package PerformanceMonitor; 
 
 import Vector :: * ;
@@ -104,9 +132,15 @@ module mkPerfCounters_Core (PerfCounters_IFC #(ctrs, ctrW, evts));
 endmodule
 
 // For a synthesize module, the values must be fixed
+`ifndef ctrs
 `define ctrs 29
+`endif
+`ifndef ctrW
 `define ctrW 64
+`endif
+`ifndef evts
 `define evts 63
+`endif
 
 (* synthesize *)
 module mkPerfCounters (PerfCounters_IFC #(`ctrs, `ctrW, `evts));