[326] | 1 | /* -*- c++ -*- |
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| 2 | * SOCLIB_LGPL_HEADER_BEGIN |
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| 3 | * |
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| 4 | * This file is part of SoCLib, GNU LGPLv2.1. |
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| 5 | * |
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| 6 | * SoCLib is free software; you can redistribute it and/or modify it |
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| 7 | * under the terms of the GNU Lesser General Public License as published |
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| 8 | * by the Free Software Foundation; version 2.1 of the License. |
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| 9 | * |
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| 10 | * SoCLib is distributed in the hope that it will be useful, but |
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| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | * Lesser General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU Lesser General Public |
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| 16 | * License along with SoCLib; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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| 18 | * 02110-1301 USA |
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| 19 | * |
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| 20 | * SOCLIB_LGPL_HEADER_END |
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| 21 | * |
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| 22 | * Author : Abdelmalek SI MERABET |
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| 23 | * Date : February 2011 |
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| 24 | * Copyright: UPMC - LIP6 |
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| 25 | */ |
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| 26 | |
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| 27 | #include <iostream> |
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| 28 | #include <string> |
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| 29 | #include <stdarg.h> |
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| 30 | #include "alloc_elems.h" |
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| 31 | #include "../include/dspin_local_ring_fast_c.h" |
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| 32 | |
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| 33 | namespace soclib { namespace caba { |
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| 34 | |
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| 35 | using soclib::common::alloc_elems; |
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| 36 | using soclib::common::dealloc_elems; |
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| 37 | |
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| 38 | #define tmpl(x) template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size > x DspinLocalRingFastC<vci_param, ring_cmd_data_size, ring_rsp_data_size > |
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| 39 | |
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| 40 | //////////////////////////////// |
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| 41 | // constructor // |
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| 42 | //////////////////////////////// |
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| 43 | tmpl(/**/)::DspinLocalRingFastC( sc_module_name insname, |
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| 44 | const soclib::common::MappingTable &mt, |
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| 45 | const soclib::common::IntTab &ringid, |
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| 46 | const int &wrapper_fifo_depth, |
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| 47 | const int &half_gateway_fifo_depth, |
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| 48 | int nb_attached_initiator, |
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| 49 | int nb_attached_target, |
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| 50 | const int x_width, |
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| 51 | const int y_width) |
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| 52 | : soclib::caba::BaseModule(insname), |
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| 53 | m_ns(nb_attached_initiator+nb_attached_target+2), |
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| 54 | m_nai(nb_attached_initiator), |
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| 55 | m_nat(nb_attached_target) |
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| 56 | { |
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| 57 | p_cmd_out = soclib::common::alloc_elems<soclib::caba::DspinOutput<ring_cmd_data_size> >("p_cmd_out", m_nat+1); |
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| 58 | p_rsp_in = soclib::common::alloc_elems<soclib::caba::DspinInput<ring_rsp_data_size> >("p_rsp_in" , m_nat+1); |
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| 59 | |
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| 60 | p_cmd_in = soclib::common::alloc_elems<soclib::caba::DspinInput<ring_cmd_data_size> >("p_cmd_in" , m_nai+1); |
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| 61 | p_rsp_out = soclib::common::alloc_elems<soclib::caba::DspinOutput<ring_rsp_data_size> >("p_rsp_out", m_nai+1); |
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| 62 | |
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| 63 | //-- to keep trace on ring traffic |
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| 64 | init_cmd = new cmd_str[m_nai+1]; |
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| 65 | tgt_rsp = new rsp_str[m_nat+1]; |
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| 66 | tgt_cmd_val = new bool[m_nat+1]; |
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| 67 | init_rsp_val = new bool[m_nai+1]; |
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| 68 | //-- |
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| 69 | m_ring_initiator = new ring_initiator_t*[m_nai]; |
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| 70 | m_ring_target = new ring_target_t*[m_nat]; |
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| 71 | m_ring_signal = new ring_signal_t[m_ns]; |
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| 72 | |
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| 73 | std::ostringstream o; |
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| 74 | o << name() << "_hg_init"; |
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| 75 | bool alloc_hg_init = (m_nai == 0); |
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| 76 | m_half_gateway_initiator = new half_gateway_initiator_t(o.str().c_str(), alloc_hg_init, half_gateway_fifo_depth, mt, ringid, nb_attached_target, x_width, y_width); |
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| 77 | |
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| 78 | std::ostringstream p; |
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| 79 | p << name() << "_hg_target"; |
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| 80 | bool alloc_hg_target = (m_nat == 0); |
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| 81 | m_half_gateway_target = new half_gateway_target_t(p.str().c_str(), alloc_hg_target, half_gateway_fifo_depth, mt, ringid, m_nat); |
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| 82 | |
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| 83 | |
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| 84 | for(int i=0; i<m_nai; ++i) { |
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| 85 | bool alloc_init = (i==0); |
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| 86 | std::ostringstream o; |
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| 87 | o << name() << "_init_" << i; |
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| 88 | m_ring_initiator[i] = new ring_initiator_t(o.str().c_str(), alloc_init, wrapper_fifo_depth, mt, ringid, i, nb_attached_target, x_width, y_width); |
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| 89 | } |
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| 90 | |
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| 91 | for(int i=0; i<m_nat; ++i) { |
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| 92 | bool alloc_target = (i==0); |
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| 93 | std::ostringstream o; |
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| 94 | o << name() << "_target_" << i; |
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| 95 | m_ring_target[i] = new ring_target_t(o.str().c_str(), alloc_target, wrapper_fifo_depth, mt, ringid, i); |
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| 96 | } |
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| 97 | |
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| 98 | SC_METHOD(transition); |
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| 99 | dont_initialize(); |
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| 100 | sensitive << p_clk.pos(); |
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| 101 | |
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| 102 | SC_METHOD(genMoore); |
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| 103 | dont_initialize(); |
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| 104 | sensitive << p_clk.neg(); |
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| 105 | } |
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| 106 | //--------------------------// |
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| 107 | tmpl(void)::transition() // |
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| 108 | //--------------------------// |
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| 109 | { |
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| 110 | if ( ! p_resetn.read() ) { |
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| 111 | for(int i=0;i<m_nai;i++) { |
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| 112 | m_ring_initiator[i]->reset(); |
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| 113 | } |
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| 114 | for(int t=0;t<m_nat;t++) { |
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| 115 | m_ring_target[t]->reset(); |
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| 116 | } |
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| 117 | |
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| 118 | m_half_gateway_initiator->reset(); |
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| 119 | m_half_gateway_target->reset(); |
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| 120 | return; |
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| 121 | } |
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| 122 | |
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| 123 | // update ring signals four times |
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| 124 | // in order to break the loop due to dependency existing between ring signals |
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| 125 | // this rule is based on relaxation principle |
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| 126 | for (int niter = 0; niter < m_ns - 1; niter++) |
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| 127 | { |
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| 128 | for(int i=0;i<m_nai;i++) { |
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| 129 | int h = 0; |
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| 130 | if(i == 0) h = m_ns-1; |
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| 131 | else h = i-1; |
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| 132 | m_ring_initiator[i]->update_ring_signals(m_ring_signal[h], m_ring_signal[i]); |
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| 133 | } |
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| 134 | |
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| 135 | for(int i=0;i<m_nat;i++){ |
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| 136 | m_ring_target[i]->update_ring_signals(m_ring_signal[m_nai+i-1], m_ring_signal[m_nai+i] ); |
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| 137 | } |
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| 138 | |
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| 139 | m_half_gateway_initiator->update_ring_signals(m_ring_signal[m_nai+m_nat-1], m_ring_signal[m_nai+m_nat], tga, iga); |
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| 140 | |
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| 141 | m_half_gateway_target->update_ring_signals(m_ring_signal[m_ns-2], m_ring_signal[m_ns-1], tga, iga); |
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| 142 | } |
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| 143 | //-----------------------------------------------// |
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| 144 | // transition // |
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| 145 | //----------------------------------------------// |
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| 146 | for(int i=0;i<m_nai;i++) { |
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| 147 | int h = 0; |
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| 148 | if(i == 0) h = m_ns-1; |
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| 149 | else h = i-1; |
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| 150 | m_ring_initiator[i]->transition(p_cmd_in[i], p_rsp_out[i], m_ring_signal[h], init_cmd[i], init_rsp_val[i]); |
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| 151 | } |
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| 152 | |
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| 153 | for(int t=0;t<m_nat;t++) { |
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| 154 | m_ring_target[t]->transition(p_cmd_out[t], p_rsp_in[t], m_ring_signal[m_nai+t-1], tgt_cmd_val[t], tgt_rsp[t]); |
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| 155 | } |
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| 156 | |
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| 157 | m_half_gateway_initiator->transition(p_cmd_in[m_nai], p_rsp_out[m_nai], m_ring_signal[m_nai+m_nat-1], init_cmd[m_nai], init_rsp_val[m_nai], tga); |
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| 158 | m_half_gateway_target->transition(p_cmd_out[m_nat], p_rsp_in[m_nat], m_ring_signal[m_nai+m_nat], tgt_cmd_val[m_nat], tgt_rsp[m_nat], iga); |
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| 159 | } |
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| 160 | |
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| 161 | tmpl(void)::genMoore() |
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| 162 | { |
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| 163 | |
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| 164 | for(int i=0;i<m_nai;i++) |
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| 165 | m_ring_initiator[i]->genMoore(p_cmd_in[i], p_rsp_out[i]); |
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| 166 | for(int t=0;t<m_nat;t++) |
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| 167 | m_ring_target[t]->genMoore(p_cmd_out[t], p_rsp_in[t]); |
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| 168 | |
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| 169 | m_half_gateway_initiator->genMoore(p_cmd_in[m_nai], p_rsp_out[m_nai]); |
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| 170 | |
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| 171 | m_half_gateway_target->genMoore(p_cmd_out[m_nat], p_rsp_in[m_nat]); |
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| 172 | } |
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| 173 | //---------------- destructor |
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| 174 | tmpl(/**/)::~DspinLocalRingFastC() |
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| 175 | { |
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| 176 | |
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| 177 | delete m_half_gateway_initiator; |
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| 178 | delete m_half_gateway_target; |
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| 179 | |
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| 180 | for(int x = 0; x < m_nai; x++) |
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| 181 | delete m_ring_initiator[x]; |
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| 182 | |
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| 183 | for(int x = 0; x < m_nat; x++) |
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| 184 | delete m_ring_target[x]; |
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| 185 | |
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| 186 | delete [] m_ring_initiator; |
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| 187 | delete [] m_ring_target; |
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| 188 | delete [] m_ring_signal; |
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| 189 | |
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| 190 | dealloc_elems(p_cmd_out, m_nat+1); |
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| 191 | dealloc_elems(p_cmd_in, m_nai+1); |
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| 192 | dealloc_elems(p_rsp_in, m_nat+1); |
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| 193 | dealloc_elems(p_rsp_out, m_nai+1); |
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| 194 | } |
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| 195 | |
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| 196 | tmpl(void)::print_trace() |
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| 197 | { |
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| 198 | int init_cmd_index = 0; |
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| 199 | bool init_cmd_found = false; |
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| 200 | int tgt_rsp_index = 0; |
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| 201 | bool tgt_rsp_found = false; |
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| 202 | |
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| 203 | // cmd trace |
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| 204 | //*-- one initiator has token at one time |
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| 205 | for(int i=0;i<m_nai+1;i++) { |
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| 206 | if(init_cmd[i].cmdval) { |
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| 207 | init_cmd_index = i; |
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| 208 | init_cmd_found = true; |
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| 209 | break; |
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| 210 | } |
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| 211 | |
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| 212 | } |
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| 213 | |
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| 214 | // rsp trace |
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| 215 | //*-- one target has token at one time |
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| 216 | for(int t=0;t<m_nat+1;t++) { |
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| 217 | if(tgt_rsp[t].rspval) { |
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| 218 | tgt_rsp_index = t; |
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| 219 | tgt_rsp_found = true; |
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| 220 | break; |
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| 221 | } |
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| 222 | |
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| 223 | } |
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| 224 | |
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| 225 | // cmd display |
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| 226 | if(init_cmd_found) { |
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| 227 | //*-- in case of broadcast (on coherence ring), all targets can receive the command at the same time |
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| 228 | for(int t=0;t<m_nat+1;t++) { |
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| 229 | if(tgt_cmd_val[t]) { |
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| 230 | std::cout << "RING " << name() |
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| 231 | << " -- initiator_" << std::dec << init_cmd_index |
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| 232 | << " ... cmd to ... target_" << t |
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| 233 | << " -state : " << init_cmd[init_cmd_index].state |
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| 234 | << " -flit : " << std::hex << init_cmd[init_cmd_index].flit |
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| 235 | << std::endl; |
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| 236 | } |
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| 237 | } |
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| 238 | } |
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| 239 | |
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| 240 | // rsp display |
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| 241 | if(tgt_rsp_found) { |
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| 242 | for(int i=0;i<m_nai+1;i++) { |
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| 243 | if(init_rsp_val[i]) { |
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| 244 | std::cout << "RING " << name() |
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| 245 | << " ++ target_" << std::dec << tgt_rsp_index |
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| 246 | << " ... rsp to ... initiator_" << i |
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| 247 | << " +state : " << tgt_rsp[tgt_rsp_index].state |
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| 248 | << " +flit : " << std::hex << tgt_rsp[tgt_rsp_index].flit |
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| 249 | << std::endl; |
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| 250 | } |
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| 251 | } |
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| 252 | } |
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| 253 | |
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| 254 | } |
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| 255 | #ifdef VCI_LOCAL_RING_FAST_STAT |
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| 256 | tmpl(void)::print_stats(uint32_t local) |
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| 257 | { |
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| 258 | std::cout << name() << " , cycles , flits sent , token wait , fifo full , preempt , palloc wait " << std::endl; |
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| 259 | if(!local) |
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| 260 | { |
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| 261 | |
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| 262 | #ifdef I_STATS |
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| 263 | for(int i=0;i<m_nai;i++) |
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| 264 | m_ring_initiator[i]->print_stats(); |
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| 265 | #endif |
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| 266 | } |
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| 267 | #ifdef HI_STATS |
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| 268 | else |
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| 269 | m_half_gateway_initiator->print_stats(); |
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| 270 | #endif |
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| 271 | } |
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| 272 | #endif |
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| 273 | }} // end namespace |
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