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authorKorey Sewell <ksewell@umich.edu>2009-05-11 19:44:34 -0400
committerKorey Sewell <ksewell@umich.edu>2009-05-11 19:44:34 -0400
commita63cc2ff5fbba0e42a7aa39bfce6b6e2310fd52a (patch)
tree0952c5678b449ffd8def645fec2b714c4960df9e /src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.cc
parenteea2b02b04a3076969dd607aca739b96d94b6155 (diff)
parentf21e80ec72cf68ad859f18a2886297004ea9f959 (diff)
downloadgem5-a63cc2ff5fbba0e42a7aa39bfce6b6e2310fd52a.tar.xz
Merge Ruby Stuff
Diffstat (limited to 'src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.cc')
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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.
+ */
+
+/*
+ * OutputUnit_d.C
+ *
+ * Niket Agarwal, Princeton University
+ *
+ * */
+
+#include "mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh"
+#include "mem/ruby/network/garnet-fixed-pipeline/Router_d.hh"
+#include "mem/ruby/network/garnet-flexible-pipeline/NetworkConfig.hh"
+
+OutputUnit_d::OutputUnit_d(int id, Router_d *router)
+{
+ m_id = id;
+ m_router = router;
+ m_num_vcs = m_router->get_num_vcs();
+ m_out_buffer = new flitBuffer_d();
+
+ for(int i = 0; i < m_num_vcs; i++)
+ {
+ m_outvc_state.insertAtBottom(new OutVcState_d(i));
+ }
+}
+
+OutputUnit_d::~OutputUnit_d()
+{
+ delete m_out_buffer;
+ m_outvc_state.deletePointers();
+}
+
+void OutputUnit_d::decrement_credit(int out_vc)
+{
+ m_outvc_state[out_vc]->decrement_credit();
+ m_router->update_incredit(m_outvc_state[out_vc]->get_inport(), m_outvc_state[out_vc]->get_invc(), m_outvc_state[out_vc]->get_credit_count());
+}
+
+void OutputUnit_d::wakeup()
+{
+ if(m_credit_link->isReady())
+ {
+ flit_d *t_flit = m_credit_link->consumeLink();
+ int out_vc = t_flit->get_vc();
+ m_outvc_state[out_vc]->increment_credit();
+ m_router->update_incredit(m_outvc_state[out_vc]->get_inport(), m_outvc_state[out_vc]->get_invc(), m_outvc_state[out_vc]->get_credit_count());
+
+ if(t_flit->is_free_signal())
+ set_vc_state(IDLE_, out_vc);
+
+ delete t_flit;
+ }
+}
+
+flitBuffer_d* OutputUnit_d::getOutQueue()
+{
+ return m_out_buffer;
+}
+
+void OutputUnit_d::set_out_link(NetworkLink_d *link)
+{
+ m_out_link = link;
+}
+
+void OutputUnit_d::set_credit_link(CreditLink_d *credit_link)
+{
+ m_credit_link = credit_link;
+}
+
+void OutputUnit_d::update_vc(int vc, int in_port, int in_vc)
+{
+ m_outvc_state[vc]->setState(ACTIVE_, g_eventQueue_ptr->getTime() + 1);
+ m_outvc_state[vc]->set_inport(in_port);
+ m_outvc_state[vc]->set_invc(in_vc);
+ m_router->update_incredit(in_port, in_vc, m_outvc_state[vc]->get_credit_count());
+}
+
+void OutputUnit_d::printConfig(ostream& out)
+{
+ out << endl;
+ out << "OutputUnit Configuration" << endl;
+ out << "---------------------" << endl;
+ out << "id = " << m_id << endl;
+ out << "Out link is " << m_out_link->get_id() << endl;
+}