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Diffstat (limited to 'src/mem/ruby/network/orion/Buffer/Register.cc')
-rw-r--r-- | src/mem/ruby/network/orion/Buffer/Register.cc | 113 |
1 files changed, 113 insertions, 0 deletions
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; +} |