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author | Tushar Krishna <tushar@csail.mit.edu> | 2011-02-06 22:14:17 -0800 |
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committer | Tushar Krishna <tushar@csail.mit.edu> | 2011-02-06 22:14:17 -0800 |
commit | a679e732cee821616c20cc13c22ad2877072ff14 (patch) | |
tree | d3225f0f3bc7f4f79fa3eeb7bf0fb40de19509aa /src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc | |
parent | 59163f824c71e4290399be7c1c4b6e70b799a388 (diff) | |
download | gem5-a679e732cee821616c20cc13c22ad2877072ff14.tar.xz |
garnet: added orion2.0 for network power calculation
Diffstat (limited to 'src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc')
-rw-r--r-- | src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc b/src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc new file mode 100644 index 000000000..ac91edb43 --- /dev/null +++ b/src/mem/ruby/network/orion/Buffer/PrechargeUnit.cc @@ -0,0 +1,136 @@ +/* + * 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 "mem/ruby/network/orion/Buffer/PrechargeUnit.hh" +#include "mem/ruby/network/orion/TechParameter.hh" +#include "mem/ruby/network/orion/Buffer/SRAM.hh" + +PrechargeUnit::PrechargeUnit( + const string& pre_model_str_, + double pre_load_, + const SRAM* sram_ptr_, + const TechParameter* tech_param_ptr_ + ) +{ + if (pre_model_str_ == "SINGLE_BITLINE") + { + m_pre_model = SINGLE_BITLINE; + } + else if (pre_model_str_ == "EQU_BITLINE") + { + m_pre_model = EQU_BITLINE; + } + else if (pre_model_str_ == "SINGLE_OTHER") + { + m_pre_model = SINGLE_OTHER; + } + else + { + m_pre_model = NO_MODEL; + } + + if (m_pre_model != NO_MODEL) + { + m_pre_load = pre_load_; + m_sram_ptr = sram_ptr_; + m_tech_param_ptr = tech_param_ptr_; + + init(); + } +} + +PrechargeUnit::~PrechargeUnit() +{ +} + +void PrechargeUnit::init() +{ + double period = m_tech_param_ptr->get_period(); + m_pre_size = m_tech_param_ptr->calc_driver_psize(m_pre_load, period/8.0); + //FIXME - shouldn't be added + double Wdecinvn = m_tech_param_ptr->get_Wdecinvn(); + double Wdecinvp = m_tech_param_ptr->get_Wdecinvp(); + m_pre_size += m_pre_size*Wdecinvn/Wdecinvp; + + uint32_t num_gate = calc_num_pre_gate(); + + // WHS: 10 should go to PARM + double e_factor = m_tech_param_ptr->get_EnergyFactor(); + m_e_charge_gate = calc_pre_cap(m_pre_size, 10) * num_gate * e_factor; + + uint32_t num_data_end = m_sram_ptr->get_num_data_end(); + if (num_data_end == 2) + { + e_factor = m_tech_param_ptr->get_SenseEnergyFactor(); + } + else + { + e_factor = m_tech_param_ptr->get_EnergyFactor(); + } + uint32_t num_drain = calc_num_pre_drain(); + m_e_charge_drain = m_tech_param_ptr->calc_draincap(m_pre_size, TechParameter::PCH, 1)*num_drain*e_factor; + + // static power + double PMOS_TAB_0 = m_tech_param_ptr->get_PMOS_TAB(0); + m_i_static = num_gate*m_pre_size*PMOS_TAB_0; +} + +uint32_t PrechargeUnit::calc_num_pre_gate() +{ + switch(m_pre_model) + { + case SINGLE_BITLINE: return 2; + case EQU_BITLINE: return 3; + case SINGLE_OTHER: return 1; + default: printf("error\n"); return 0; + } +} + +uint32_t PrechargeUnit::calc_num_pre_drain() +{ + switch(m_pre_model) + { + case SINGLE_BITLINE: return 1; + case EQU_BITLINE: return 2; + case SINGLE_OTHER: return 1; + default: printf("error\n"); return 0; + } +} + +double PrechargeUnit::calc_pre_cap(double width_, double length_) +{ + return m_tech_param_ptr->calc_gatecap(width_, length_); +} + |