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diff --git a/src/mem/ruby/network/garnet-fixed-pipeline/SWallocator_d.hh b/src/mem/ruby/network/garnet-fixed-pipeline/SWallocator_d.hh
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+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * SWallocator_d.h
+ *
+ * Niket Agarwal, Princeton University
+ *
+ * */
+
+#ifndef SW_ALLOCATOR_D_H
+#define SW_ALLOCATOR_D_H
+
+#include "NetworkHeader.hh"
+#include "Consumer.hh"
+
+class Router_d;
+class InputUnit_d;
+class OutputUnit_d;
+
+class SWallocator_d : public Consumer {
+public:
+        SWallocator_d(Router_d *router);
+        void wakeup();
+        void init();
+        void clear_request_vector();
+        void check_for_wakeup();
+        int get_vnet (int invc);
+        void print(ostream& out) const {};
+        void arbitrate_inports();
+        void arbitrate_outports();
+        bool is_candidate_inport(int inport, int invc);
+        inline double get_local_arbit_count()
+        {
+                return m_local_arbiter_activity;
+        }
+        inline double get_global_arbit_count()
+        {
+                return m_global_arbiter_activity;
+        }
+
+private:
+        int m_num_inports, m_num_outports;
+        int m_num_vcs, m_vc_per_vnet;
+
+        double m_local_arbiter_activity, m_global_arbiter_activity;
+
+        Router_d *m_router;
+        Vector<int > m_round_robin_outport;
+        Vector<int > m_round_robin_inport;
+        Vector<Vector<bool > > m_port_req;
+        Vector<Vector<int > > m_vc_winners; // a list for each outport
+        Vector<InputUnit_d *> m_input_unit;
+        Vector<OutputUnit_d *> m_output_unit;
+};
+
+#endif