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diff --git a/src/mem/ruby/network/orion/Allocator/RRArbiter.cc b/src/mem/ruby/network/orion/Allocator/RRArbiter.cc
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-/*
- * Copyright (c) 2009 Princeton University
- * Copyright (c) 2009 The 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 <cmath>
-#include <iostream>
-
-#include "mem/ruby/network/orion/Allocator/RRArbiter.hh"
-#include "mem/ruby/network/orion/FlipFlop.hh"
-#include "mem/ruby/network/orion/TechParameter.hh"
-
-using namespace std;
-
-RRArbiter::RRArbiter(
- const string& ff_model_str_,
- uint32_t req_width_,
- double len_in_wire_,
- const TechParameter* tech_param_ptr_
- ) : Arbiter(RR_ARBITER, req_width_, len_in_wire_, tech_param_ptr_)
-{
- init(ff_model_str_);
-}
-
-RRArbiter::~RRArbiter()
-{
- delete m_ff_ptr;
-}
-
-double RRArbiter::calc_dynamic_energy(double num_req_, bool is_max_) const
-{
- if (num_req_ > m_req_width)
- {
- cerr << "WARNING: (num_req_ > m_req_width). Set num_req_ = m_req_width" << endl;
- num_req_ = m_req_width;
- }
-
- double num_grant;
- if (num_req_ >= 1) num_grant = 1;
- else if (num_req_) num_grant = 1.0 / ceil(1.0/num_req_);
- else num_grant = 0;
-
- double e_atomic;
- double e_arb = 0;
-
- e_atomic = m_e_chg_req*num_req_;
- e_arb += e_atomic;
-
- e_atomic = m_e_chg_grant*num_grant;
- e_arb += e_atomic;
-
- // assume carry signal propagates half length in average case */
- // carry does not propagate in maximum case, i.e. all carrys go down */
- e_atomic = m_e_chg_carry*m_req_width*(is_max_? 1:0.5)*num_grant;
- e_arb += e_atomic;
-
- e_atomic = m_e_chg_carry_in*(m_req_width*(is_max_? 1:0.5)-1)*num_grant;
- e_arb += e_atomic;
-
- // priority register
- e_atomic = m_ff_ptr->get_e_switch()*2*num_grant;
- e_arb += e_atomic;
-
- e_atomic = m_ff_ptr->get_e_keep_0()*(m_req_width-2*num_grant);
- e_arb += e_atomic;
-
- e_atomic = m_ff_ptr->get_e_clock()*m_req_width;
- e_arb += e_atomic;
-
- return e_arb;
-}
-
-void RRArbiter::init(const string& ff_model_str_)
-{
- double e_factor = m_tech_param_ptr->get_EnergyFactor();
-
- m_e_chg_req = calc_req_cap()/2*e_factor;
- // two grant signals switch together, so no 1/2
- m_e_chg_grant = calc_grant_cap()*e_factor;
- m_e_chg_carry = calc_carry_cap()/2*e_factor;
- m_e_chg_carry_in = calc_carry_in_cap()/2*e_factor;
-
- double ff_load = calc_pri_cap();
- m_ff_ptr = new FlipFlop(ff_model_str_, ff_load, m_tech_param_ptr);
-
- m_i_static = calc_i_static();
- return;
-}
-
-// switch cap of request signal (round robin arbiter)
-double RRArbiter::calc_req_cap()
-{
- double total_cap = 0;
-
- // part 1: gate cap of 2 NOR gates
- // FIXME: need actual size
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- total_cap += 2*m_tech_param_ptr->calc_gatecap(WdecNORn+WdecNORp, 0);
-
- // part 2: inverter
- // FIXME: need actual size
- double Wdecinvn = m_tech_param_ptr->get_Wdecinvn();
- double Wdecinvp = m_tech_param_ptr->get_Wdecinvp();
- total_cap += m_tech_param_ptr->calc_draincap(Wdecinvn, TechParameter::NCH, 1)
- + m_tech_param_ptr->calc_draincap(Wdecinvp, TechParameter::PCH, 1)
- + m_tech_param_ptr->calc_gatecap(Wdecinvn+Wdecinvp, 0);
-
- // part 3: wire cap
- double Cmetal = m_tech_param_ptr->get_Cmetal();
- total_cap += m_len_in_wire*Cmetal;
-
- return total_cap;
-}
-
-// switch cap of priority signal
-double RRArbiter::calc_pri_cap()
-{
- double total_cap = 0;
-
- // part 1: gate cap of NOR gate
- // FIXME: need actual size
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- total_cap += m_tech_param_ptr->calc_gatecap(WdecNORn+WdecNORp, 0);
-
- return total_cap;
-}
-
-// switch cap of grant signa
-double RRArbiter::calc_grant_cap()
-{
- double total_cap = 0;
-
- // part 1: drain cap of NOR gate
- // FIXME: need actual size
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- total_cap += 2*m_tech_param_ptr->calc_draincap(WdecNORn, TechParameter::NCH, 1)
- + m_tech_param_ptr->calc_draincap(WdecNORp, TechParameter::PCH, 2);
-
- return total_cap;
-}
-
-// switch cap of carry signal
-double RRArbiter::calc_carry_cap()
-{
- double total_cap = 0;
-
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- // part 1: drain cap of NOR gate (this bloc)
- // FIXME: need actual size
- total_cap += 2*m_tech_param_ptr->calc_draincap(WdecNORn, TechParameter::NCH, 1)
- + m_tech_param_ptr->calc_draincap(WdecNORp, TechParameter::PCH, 2);
-
- // part 2: gate cap of NOR gate (next block)
- // FIXME: need actual size
- total_cap += m_tech_param_ptr->calc_gatecap(WdecNORn+WdecNORp, 0);
-
- return total_cap;
-}
-
-// switch cap of internal carry node
-double RRArbiter::calc_carry_in_cap()
-{
- double total_cap = 0;
-
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- // part 1: gate cap of 2 NOR gate
- // FIXME: need actual size
- total_cap += 2*m_tech_param_ptr->calc_gatecap(WdecNORn+WdecNORp, 0);
-
- // part 2: drain cap of NOR gate (this bloc)
- // FIXME: need actual size
- total_cap += 2*m_tech_param_ptr->calc_draincap(WdecNORn, TechParameter::NCH, 1)
- + m_tech_param_ptr->calc_draincap(WdecNORp, TechParameter::PCH, 2);
-
- return total_cap;
-}
-
-double RRArbiter::calc_i_static()
-{
- double i_static = 0;
-
- double WdecNORn = m_tech_param_ptr->get_WdecNORn();
- double WdecNORp = m_tech_param_ptr->get_WdecNORp();
- double Wdecinvn = m_tech_param_ptr->get_Wdecinvn();
- double Wdecinvp = m_tech_param_ptr->get_Wdecinvp();
- double Wdff = m_tech_param_ptr->get_Wdff();
- double NOR2_TAB_0 = m_tech_param_ptr->get_NOR2_TAB(0);
- double NOR2_TAB_1 = m_tech_param_ptr->get_NOR2_TAB(1);
- double NOR2_TAB_2 = m_tech_param_ptr->get_NOR2_TAB(2);
- double NOR2_TAB_3 = m_tech_param_ptr->get_NOR2_TAB(3);
- double NMOS_TAB_0 = m_tech_param_ptr->get_NMOS_TAB(0);
- double PMOS_TAB_0 = m_tech_param_ptr->get_PMOS_TAB(0);
- double DFF_TAB_0 = m_tech_param_ptr->get_DFF_TAB(0);
-
- // NOR
- i_static += (6*m_req_width*((WdecNORp*NOR2_TAB_0+WdecNORn*(NOR2_TAB_1+NOR2_TAB_2+NOR2_TAB_3))/4));
- // inverter
- i_static += 2*m_req_width*((Wdecinvn*NMOS_TAB_0+Wdecinvp*PMOS_TAB_0)/2);
- // dff
- i_static += m_req_width*Wdff*DFF_TAB_0;
-
- return i_static;
-}
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