1 files changed, 87 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/VirtualChannel_d.cc b/src/mem/ruby/network/garnet/fixed-pipeline/VirtualChannel_d.cc
new file mode 100644
index 000000000..94e78196c
--- /dev/null
+++ b/src/mem/ruby/network/garnet/fixed-pipeline/VirtualChannel_d.cc
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2008 Princeton University
+ * 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.
+ *
+ * Authors: Niket Agarwal
+ */
+
+#include "mem/ruby/network/garnet/fixed-pipeline/VirtualChannel_d.hh"
+
+VirtualChannel_d::VirtualChannel_d(int id)
+{
+        m_id = id;
+        m_input_buffer = new flitBuffer_d();
+        m_vc_state.first = IDLE_;
+        m_vc_state.second = g_eventQueue_ptr->getTime();
+        m_enqueue_time = INFINITE_;
+}
+
+VirtualChannel_d::~VirtualChannel_d()
+{
+        delete m_input_buffer;
+}
+
+void VirtualChannel_d::set_outport(int outport)
+{
+        route = outport;
+}
+
+void VirtualChannel_d::grant_vc(int out_vc)
+{
+        m_output_vc = out_vc;
+        m_vc_state.first = ACTIVE_;
+        m_vc_state.second = g_eventQueue_ptr->getTime() + 1;
+        flit_d *t_flit = m_input_buffer->peekTopFlit();
+        t_flit->advance_stage(SA_);
+}
+
+bool VirtualChannel_d::need_stage(VC_state_type state, flit_stage stage)
+{
+        if((m_vc_state.first == state) && (g_eventQueue_ptr->getTime() >= m_vc_state.second))
+        {
+                if(m_input_buffer->isReady())
+                {
+                        flit_d *t_flit = m_input_buffer->peekTopFlit();
+                        return(t_flit->is_stage(stage)) ;
+                }
+        }
+        return false;
+
+}
+
+bool VirtualChannel_d::need_stage_nextcycle(VC_state_type state, flit_stage stage)
+{
+        if((m_vc_state.first == state) && ((g_eventQueue_ptr->getTime()+1) >= m_vc_state.second))
+        {
+                if(m_input_buffer->isReadyForNext())
+                {
+                        flit_d *t_flit = m_input_buffer->peekTopFlit();
+                        return(t_flit->is_next_stage(stage)) ;
+                }
+        }
+        return false;
+}
+