From a679e732cee821616c20cc13c22ad2877072ff14 Mon Sep 17 00:00:00 2001
From: Tushar Krishna <tushar@csail.mit.edu>
Date: Sun, 6 Feb 2011 22:14:17 -0800
Subject: garnet: added orion2.0 for network power calculation

---
 src/mem/ruby/network/orion/Buffer/Register.cc | 113 ++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 src/mem/ruby/network/orion/Buffer/Register.cc

(limited to 'src/mem/ruby/network/orion/Buffer/Register.cc')

diff --git a/src/mem/ruby/network/orion/Buffer/Register.cc b/src/mem/ruby/network/orion/Buffer/Register.cc
new file mode 100644
index 000000000..364e5a833
--- /dev/null
+++ b/src/mem/ruby/network/orion/Buffer/Register.cc
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2009 Princeton University, and
+ *                    Regents of the University of California
+ * 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:  Hangsheng Wang (Orion 1.0, Princeton)
+ *           Xinping Zhu (Orion 1.0, Princeton)
+ *           Xuning Chen (Orion 1.0, Princeton)
+ *           Bin Li (Orion 2.0, Princeton)
+ *           Kambiz Samadi (Orion 2.0, UC San Diego)
+ */
+
+#include <iostream>
+#include <cassert>
+
+#include "mem/ruby/network/orion/Buffer/Register.hh"
+#include "mem/ruby/network/orion/TechParameter.hh"
+#include "mem/ruby/network/orion/FlipFlop.hh"
+
+using namespace std;
+
+Register::Register(
+        uint32_t num_entry_, 
+        uint32_t line_width_, 
+        const TechParameter *tech_param_ptr_
+        )
+{
+    assert(num_entry_ == num_entry_);
+    assert(line_width_ == line_width_);
+
+    m_num_entry = num_entry_;
+    m_line_width = line_width_;
+    m_tech_param_ptr = tech_param_ptr_;
+
+    init();
+}
+
+Register::~Register()
+{
+    delete m_ff_ptr;
+}
+
+double Register::calc_e_read() const
+{
+    // average read energy for one buffer entry
+    double e_read = 0;
+
+
+    // for each read operation, the energy consists of one read operation and n write
+    // operateion. n means there is n flits in the buffer before read operation.
+    // assume n is info->n_entry * 0.25.
+    // 
+    if (m_num_entry > 1)
+    {
+        e_read = (m_avg_read + m_num_entry*0.25*m_avg_write);
+    }
+    else
+    {
+        e_read = m_avg_read;
+    }
+    return e_read;
+}
+
+double Register::calc_e_write() const
+{
+    // average write energy for one buffer entry
+    double e_write = 0;
+
+    e_write = m_avg_write;
+    return e_write;
+}
+
+double Register::calc_i_static() const
+{
+    double i_static = m_ff_ptr->get_i_static()*m_line_width*m_num_entry;
+
+    return i_static;
+}
+
+void Register::init()
+{
+    m_ff_ptr = new FlipFlop("NEG_DFF", 0, m_tech_param_ptr);
+
+    uint32_t num_clock = m_line_width;
+    m_avg_read = m_ff_ptr->get_e_clock()*((double)num_clock)/2.0;
+
+    double num_switch = m_line_width/2.0;
+    m_avg_write = m_ff_ptr->get_e_switch()*num_switch+m_ff_ptr->get_e_clock()*num_clock;
+    return;
+}
-- 
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