[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 | * Authors : Abdelmalek SI MERABET |
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| 23 | * Franck WAJSBURT |
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| 24 | * Date : Februrary 2013 |
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| 25 | * Copyright: UPMC - LIP6 |
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| 26 | */ |
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| 27 | #ifndef SOCLIB_CABA_DSPIN_ALLOC_RING_TARGET_FAST_H |
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| 28 | #define SOCLIB_CABA_DSPIN_ALLOC_RING_TARGET_FAST_H |
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| 29 | |
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| 30 | #include "generic_fifo.h" |
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| 31 | #include "mapping_table.h" |
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| 32 | #include "ring_signals_fast.h" |
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| 33 | #include "dspin_interface.h" |
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| 34 | |
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[359] | 35 | #define T_DEBUG |
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[326] | 36 | |
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| 37 | namespace soclib { namespace caba { |
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| 38 | |
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| 39 | namespace { |
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| 40 | |
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| 41 | const char *ring_rsp_fsm_state_str_t[] = { |
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| 42 | "RSP_IDLE", |
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| 43 | "OWNER", |
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| 44 | "SENDING", |
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| 45 | "WAIT_PALLOC_END", |
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| 46 | }; |
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| 47 | |
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| 48 | #ifdef T_DEBUG |
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| 49 | |
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| 50 | const char *ring_cmd_fsm_state_str_t[] = { |
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| 51 | "CMD_IDLE", |
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| 52 | "ALLOC", |
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| 53 | "NALLOC", |
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| 54 | "PALLOC2", |
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| 55 | "PALLOC1", |
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| 56 | }; |
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| 57 | #endif |
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| 58 | } // end namespace |
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| 59 | |
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| 60 | template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size> |
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| 61 | class DspinLocalRingTargetFastC |
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| 62 | { |
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| 63 | |
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| 64 | typedef typename vci_param::fast_addr_t vci_addr_t; |
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| 65 | typedef LocalRingSignals ring_signal_t; |
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| 66 | typedef DspinOutput<ring_cmd_data_size > cmd_out_t; |
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| 67 | typedef DspinInput<ring_rsp_data_size > rsp_in_t; |
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| 68 | |
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| 69 | private: |
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| 70 | |
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| 71 | enum ring_cmd_fsm_state_e { |
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| 72 | CMD_IDLE, // waiting for first flit of a command packet |
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| 73 | ALLOC, // next flit of a local cmd packet |
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| 74 | NALLOC, // next flit of a ring cmd packet |
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| 75 | PALLOC2, // local target is receiving from init gate (ring is cmd_preempted) while target gate is allocated |
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| 76 | PALLOC1, // local target is receiving from init gate, target gate has finished receiving (target gate is not allocated) |
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| 77 | }; |
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| 78 | |
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| 79 | // cmd token allocation fsm |
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| 80 | enum ring_rsp_fsm_state_e { |
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| 81 | RSP_IDLE, |
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| 82 | OWNER, |
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| 83 | SENDING, |
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| 84 | WAIT_PALLOC_END, |
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| 85 | }; |
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| 86 | |
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| 87 | // structural parameters |
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| 88 | std::string m_name; |
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| 89 | bool m_alloc_target; |
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| 90 | |
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| 91 | // internal fifos |
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| 92 | GenericFifo<uint64_t > m_cmd_fifo; // fifo for the local command paquet |
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| 93 | GenericFifo<uint64_t > m_rsp_fifo; // fifo for the local response paquet |
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| 94 | |
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| 95 | // routing table |
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| 96 | soclib::common::AddressDecodingTable<vci_addr_t, int> m_rt; |
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| 97 | // locality table |
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| 98 | soclib::common::AddressDecodingTable<vci_addr_t, bool> m_lt; |
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| 99 | |
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| 100 | int m_tgtid; |
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| 101 | |
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| 102 | |
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| 103 | #ifdef T_DEBUG |
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| 104 | uint32_t m_cpt; |
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| 105 | #endif |
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| 106 | |
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| 107 | // internal registers |
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| 108 | sc_core::sc_signal<int> r_ring_cmd_fsm; // ring command packet FSM |
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| 109 | sc_core::sc_signal<int> r_ring_rsp_fsm; // ring response packet FSM |
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| 110 | |
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| 111 | |
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| 112 | public : |
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| 113 | |
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| 114 | #define __renRegTgt(x) x((((std::string) name)+"_" #x).c_str()) |
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| 115 | |
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| 116 | DspinLocalRingTargetFastC( |
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| 117 | const char *name, |
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| 118 | bool alloc_target, |
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| 119 | const int &wrapper_fifo_depth, |
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| 120 | const soclib::common::MappingTable &mt, |
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| 121 | const soclib::common::IntTab &ringid, |
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| 122 | const int &tgtid) |
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| 123 | : m_name(name), |
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| 124 | m_alloc_target(alloc_target), |
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| 125 | m_cmd_fifo(((std::string) name)+"m_cmd_fifo", wrapper_fifo_depth), |
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| 126 | m_rsp_fifo(((std::string) name)+"m_rsp_fifo", wrapper_fifo_depth), |
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| 127 | m_rt(mt.getRoutingTable<typename vci_param::fast_addr_t>(ringid)), |
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| 128 | m_lt(mt.getLocalityTable<typename vci_param::fast_addr_t>(ringid)), |
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| 129 | m_tgtid(tgtid), |
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| 130 | __renRegTgt(r_ring_cmd_fsm), |
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| 131 | __renRegTgt(r_ring_rsp_fsm) |
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| 132 | |
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| 133 | {} // end constructor |
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| 134 | |
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| 135 | void reset() |
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| 136 | { |
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| 137 | if(m_alloc_target) |
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| 138 | r_ring_rsp_fsm = OWNER; |
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| 139 | else |
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| 140 | r_ring_rsp_fsm = RSP_IDLE; |
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| 141 | |
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| 142 | r_ring_cmd_fsm = CMD_IDLE; |
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| 143 | m_cmd_fifo.init(); |
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| 144 | m_rsp_fifo.init(); |
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| 145 | |
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| 146 | #ifdef T_DEBUG |
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| 147 | m_cpt = 0; |
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| 148 | #endif |
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| 149 | |
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| 150 | |
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| 151 | } |
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| 152 | void transition(const cmd_out_t &p_cmd_out, const rsp_in_t &p_rsp_in, const ring_signal_t p_ring_in, bool &tgt_cmd_val, rsp_str &tgt_rsp) |
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| 153 | { |
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| 154 | |
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| 155 | bool cmd_fifo_put = false; |
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| 156 | uint64_t cmd_fifo_data = 0; |
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| 157 | |
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| 158 | bool rsp_fifo_get = false; |
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| 159 | bool rsp_fifo_put = false; |
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| 160 | uint64_t rsp_fifo_data = 0; |
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| 161 | |
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| 162 | //////////// DSPIN FIFOS ACCESS ///////////////////////// |
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| 163 | |
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| 164 | if (p_rsp_in.write) { |
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| 165 | #ifdef T_DEBUG |
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| 166 | std::cout << sc_time_stamp() << " -- " << m_name << " -- DSPIN FIFO" |
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| 167 | << " -- rsp in rok : " << p_rsp_in.write |
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| 168 | << " -- in data : " << std::hex << p_rsp_in.data.read() |
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| 169 | << " -- fifo wok : " << m_rsp_fifo.wok() |
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| 170 | << std::endl; |
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| 171 | #endif |
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| 172 | |
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| 173 | rsp_fifo_data = (uint64_t) p_rsp_in.data.read(); |
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| 174 | rsp_fifo_put = m_rsp_fifo.wok(); |
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| 175 | } |
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| 176 | |
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| 177 | bool cmd_fifo_get = p_cmd_out.read; |
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| 178 | |
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| 179 | //////////// RING RSP FSM ///////////////////////// |
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| 180 | |
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| 181 | switch( r_ring_rsp_fsm ) |
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| 182 | { |
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| 183 | case RSP_IDLE: |
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| 184 | |
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| 185 | #ifdef T_DEBUG |
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| 186 | if(m_rsp_fifo.rok()) |
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| 187 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 188 | << " - ring_rsp_fsm = " << ring_rsp_fsm_state_str_t[r_ring_rsp_fsm] |
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| 189 | << " - fifo ROK : " << m_rsp_fifo.rok() |
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| 190 | << " - in grant : " << p_ring_in.rsp_grant |
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| 191 | << " - in palloc : " << p_ring_in.rsp_palloc |
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| 192 | << " - in wok : " << p_ring_in.rsp_r |
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| 193 | << " - fifo data : " << std::hex << m_rsp_fifo.read() |
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| 194 | << std::endl; |
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| 195 | #endif |
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| 196 | |
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| 197 | if ( p_ring_in.rsp_grant && m_rsp_fifo.rok() ) |
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| 198 | |
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| 199 | r_ring_rsp_fsm = SENDING; |
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| 200 | |
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| 201 | break; |
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| 202 | |
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| 203 | case OWNER: |
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| 204 | { |
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| 205 | |
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| 206 | #ifdef T_DEBUG |
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| 207 | if(m_rsp_fifo.rok()) |
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| 208 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 209 | << " - ring_rsp_fsm = " << ring_rsp_fsm_state_str_t[r_ring_rsp_fsm] |
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| 210 | << " - in rsp grant : " << p_ring_in.rsp_grant |
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| 211 | << " - in wok : " << p_ring_in.rsp_r |
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| 212 | << " - fifo rok : " << m_rsp_fifo.rok() |
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| 213 | << " - fifo data : " << std::hex << m_rsp_fifo.read() |
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| 214 | << std::endl; |
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| 215 | #endif |
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| 216 | |
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| 217 | bool eop = ( (int) ((m_rsp_fifo.read() >> (ring_rsp_data_size - 1) ) & 0x1) == 1); |
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| 218 | |
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| 219 | if ( m_rsp_fifo.rok() && eop && p_ring_in.rsp_r ) |
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| 220 | { |
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| 221 | rsp_fifo_get = true; |
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| 222 | if ( p_ring_in.rsp_grant ) |
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| 223 | r_ring_rsp_fsm = OWNER; |
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| 224 | else |
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| 225 | r_ring_rsp_fsm = RSP_IDLE; |
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| 226 | } |
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| 227 | |
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| 228 | if ( m_rsp_fifo.rok() && (!eop || !p_ring_in.rsp_r)) |
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| 229 | { |
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| 230 | rsp_fifo_get = p_ring_in.rsp_r; |
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| 231 | r_ring_rsp_fsm = SENDING; |
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| 232 | } |
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| 233 | |
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| 234 | if ( !m_rsp_fifo.rok() && !p_ring_in.rsp_grant ) |
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| 235 | r_ring_rsp_fsm = RSP_IDLE; |
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| 236 | |
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| 237 | if ( !m_rsp_fifo.rok() && p_ring_in.rsp_grant ) |
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| 238 | r_ring_rsp_fsm = OWNER; |
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| 239 | } |
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| 240 | break; |
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| 241 | |
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| 242 | case SENDING: |
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| 243 | |
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| 244 | // stay here while !release + rsp_preempt |
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| 245 | // release = fifo_rok.ring_in.wok.fifo_data.eop |
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| 246 | #ifdef T_DEBUG |
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| 247 | if(m_rsp_fifo.rok()) |
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| 248 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 249 | << " - ring_rsp_fsm = " << ring_rsp_fsm_state_str_t[r_ring_rsp_fsm] |
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| 250 | << " - fifo ROK : " << m_rsp_fifo.rok() |
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| 251 | << " - in grant : " << p_ring_in.rsp_grant |
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| 252 | << " - in preempt : " << p_ring_in.rsp_preempt |
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| 253 | << " - in palloc : " << p_ring_in.rsp_palloc |
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| 254 | << " - in wok : " << p_ring_in.rsp_r |
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| 255 | << " - fifo data : " << std::hex << m_rsp_fifo.read() |
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| 256 | << std::endl; |
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| 257 | #endif |
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| 258 | if(p_ring_in.rsp_preempt) break; |
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| 259 | |
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| 260 | if(m_rsp_fifo.rok() && p_ring_in.rsp_r) |
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| 261 | { |
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| 262 | rsp_fifo_get = true; |
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| 263 | bool eop = ((int) (m_rsp_fifo.read() >> (ring_rsp_data_size - 1) ) & 0x1) == 1; |
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| 264 | |
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| 265 | if (eop && !p_ring_in.rsp_palloc && p_ring_in.rsp_grant) |
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| 266 | { |
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| 267 | r_ring_rsp_fsm = OWNER; |
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| 268 | } |
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| 269 | else if (eop && !p_ring_in.rsp_palloc && !p_ring_in.rsp_grant) |
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| 270 | { |
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| 271 | r_ring_rsp_fsm = RSP_IDLE; |
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| 272 | } |
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| 273 | else if (eop && p_ring_in.rsp_palloc) |
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| 274 | { |
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| 275 | r_ring_rsp_fsm = WAIT_PALLOC_END; |
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| 276 | } |
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| 277 | } |
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| 278 | |
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| 279 | break; |
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| 280 | |
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| 281 | case WAIT_PALLOC_END: |
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| 282 | // stay here and keep token till Init Gate last flit |
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| 283 | bool eop = ((int) (p_ring_in.rsp_data >> (ring_rsp_data_size - 1) ) & 0x1) == 1; |
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| 284 | #ifdef T_DEBUG |
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| 285 | if(p_ring_in.rsp_w) |
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| 286 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 287 | << " - ring_rsp_fsm = " << ring_rsp_fsm_state_str_t[r_ring_rsp_fsm] |
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| 288 | << " - palloc : " << p_ring_in.rsp_palloc |
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| 289 | << " - in grant : " << p_ring_in.rsp_grant |
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| 290 | << " - in preempt : " << p_ring_in.rsp_preempt |
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| 291 | << " - in rok : " << p_ring_in.rsp_w |
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| 292 | << " - in wok : " << p_ring_in.rsp_r |
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| 293 | << " - eop : " << eop |
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| 294 | << std::endl; |
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| 295 | #endif |
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| 296 | if(p_ring_in.rsp_w && p_ring_in.rsp_r && eop) // last flit from Init gate |
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| 297 | { |
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| 298 | if (p_ring_in.rsp_grant) |
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| 299 | r_ring_rsp_fsm = OWNER; |
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| 300 | else |
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[380] | 301 | r_ring_rsp_fsm = RSP_IDLE; |
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[326] | 302 | |
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| 303 | } |
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| 304 | |
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| 305 | break; |
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| 306 | } // end switch ring cmd fsm |
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| 307 | |
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| 308 | /////////// RING CMD FSM //////////////////////// |
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| 309 | switch( r_ring_cmd_fsm ) |
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| 310 | { |
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| 311 | |
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| 312 | case CMD_IDLE: |
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| 313 | { // for variable scope |
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| 314 | |
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| 315 | vci_addr_t rtgtid = (vci_addr_t) (((p_ring_in.cmd_data >> (ring_cmd_data_size-vci_param::S-1)) << (vci_param::N-vci_param::S))); |
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| 316 | bool islocalm = m_lt[rtgtid] && (m_rt[rtgtid] == m_tgtid); // multicast |
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| 317 | bool isbrdcst = (p_ring_in.cmd_data & 0x1) == 0x1; |
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| 318 | bool islocalb = ( (int) ((p_ring_in.cmd_data >> 1 ) & 0xF) == m_tgtid); // broadcast |
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| 319 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 320 | |
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| 321 | if(p_ring_in.cmd_w) |
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| 322 | { |
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| 323 | #ifdef T_DEBUG |
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| 324 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 325 | << " - ring_cmd_fsm = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
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| 326 | << " - in preempt : " << p_ring_in.cmd_preempt |
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| 327 | << " - in rok : " << p_ring_in.cmd_w |
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| 328 | << " - in data : " << std::hex << p_ring_in.cmd_data |
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| 329 | << " - in wok : " << p_ring_in.cmd_r |
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| 330 | << " - rtgtid : " << rtgtid |
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| 331 | << " - fifo wok : " << m_cmd_fifo.wok() |
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| 332 | << " - islocalm : " << islocalm |
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| 333 | << " - islocalb : " << islocalb |
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| 334 | << " - eop : " << eop |
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| 335 | << std::endl; |
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| 336 | #endif |
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| 337 | if ( (isbrdcst && islocalb) || (!isbrdcst && islocalm) ) |
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| 338 | { |
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| 339 | |
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| 340 | cmd_fifo_put = m_cmd_fifo.wok(); |
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| 341 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 342 | |
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| 343 | if (eop && m_cmd_fifo.wok()) |
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| 344 | r_ring_cmd_fsm = CMD_IDLE; |
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| 345 | else |
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| 346 | r_ring_cmd_fsm = ALLOC; |
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| 347 | |
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| 348 | } |
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| 349 | |
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| 350 | else |
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| 351 | { |
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| 352 | if (eop && p_ring_in.cmd_r) |
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| 353 | r_ring_cmd_fsm = CMD_IDLE; |
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| 354 | else |
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| 355 | r_ring_cmd_fsm = NALLOC; |
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| 356 | } |
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| 357 | } |
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| 358 | else |
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| 359 | r_ring_cmd_fsm = CMD_IDLE; |
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| 360 | } |
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| 361 | |
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| 362 | break; |
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| 363 | |
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| 364 | case ALLOC: |
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| 365 | #ifdef T_DEBUG |
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| 366 | if(p_ring_in.cmd_w) |
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| 367 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 368 | << " - ring_cmd_fsm = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
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| 369 | << " - in preempt : " << p_ring_in.cmd_preempt |
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| 370 | << " - in rok : " << p_ring_in.cmd_w |
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| 371 | << " - in data : " << std::hex << p_ring_in.cmd_data |
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| 372 | << " - in wok : " << p_ring_in.cmd_r |
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| 373 | << " - fifo wok : " << m_cmd_fifo.wok() |
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| 374 | << std::endl; |
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| 375 | #endif |
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| 376 | { |
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| 377 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 378 | |
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| 379 | |
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| 380 | if ( p_ring_in.cmd_w && m_cmd_fifo.wok() && eop ) |
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| 381 | { |
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| 382 | |
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| 383 | cmd_fifo_put = true; |
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| 384 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 385 | r_ring_cmd_fsm = CMD_IDLE; |
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| 386 | |
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| 387 | } |
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| 388 | |
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| 389 | else // !p_ring_in.cmd_w || !m_cmd_fifo.wok() || !eop |
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| 390 | { |
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| 391 | |
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| 392 | cmd_fifo_put = p_ring_in.cmd_w && m_cmd_fifo.wok(); |
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| 393 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 394 | r_ring_cmd_fsm = ALLOC; |
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| 395 | |
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| 396 | } |
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| 397 | } |
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| 398 | break; |
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| 399 | |
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| 400 | case NALLOC: |
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| 401 | // if preempt (init gate is preempting ring while target gate is allocated), |
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| 402 | // if first flit of a new packet, is it for this local target ? |
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| 403 | #ifdef T_DEBUG |
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| 404 | if(p_ring_in.cmd_preempt || p_ring_in.cmd_w) |
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| 405 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
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| 406 | << " - ring_cmd_fsm = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
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| 407 | << " - preempt : " << p_ring_in.cmd_preempt |
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| 408 | << " - palloc : " << p_ring_in.cmd_palloc |
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| 409 | << " - header : " << p_ring_in.cmd_header |
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| 410 | << " - in rok : " << p_ring_in.cmd_w |
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| 411 | << " - in data : " << std::hex << p_ring_in.cmd_data |
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| 412 | << " - in wok : " << p_ring_in.cmd_r |
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| 413 | << " - fifo wok : " << m_cmd_fifo.wok() |
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| 414 | << std::endl; |
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| 415 | #endif |
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| 416 | { |
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| 417 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 418 | |
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| 419 | |
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| 420 | if(p_ring_in.cmd_preempt) |
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| 421 | { |
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| 422 | // cmd_header : sent by init gate |
---|
| 423 | if(p_ring_in.cmd_header) |
---|
| 424 | { |
---|
| 425 | vci_addr_t rtgtid = (vci_addr_t) (((p_ring_in.cmd_data >> (ring_cmd_data_size-vci_param::S-1)) << (vci_param::N-vci_param::S))); |
---|
| 426 | bool islocalm = m_lt[rtgtid] && (m_rt[rtgtid] == m_tgtid); // multicast |
---|
| 427 | bool isbrdcst = (p_ring_in.cmd_data & 0x1) == 0x1; |
---|
| 428 | bool islocalb = ( (int) ((p_ring_in.cmd_data >> 1 ) & 0xF) == m_tgtid); // broadcast |
---|
| 429 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
| 430 | |
---|
| 431 | |
---|
| 432 | if ( (isbrdcst && islocalb) || (!isbrdcst && islocalm) ) |
---|
| 433 | { |
---|
| 434 | |
---|
| 435 | cmd_fifo_put = m_cmd_fifo.wok(); |
---|
| 436 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
| 437 | |
---|
[358] | 438 | if (!eop) |
---|
| 439 | r_ring_cmd_fsm = PALLOC2; |
---|
| 440 | |
---|
| 441 | //if (eop && m_cmd_fifo.wok()) |
---|
| 442 | // r_ring_cmd_fsm = CMD_IDLE; |
---|
| 443 | //else |
---|
| 444 | // r_ring_cmd_fsm = PALLOC2; |
---|
[326] | 445 | |
---|
| 446 | } |
---|
| 447 | |
---|
| 448 | else |
---|
| 449 | { |
---|
| 450 | if (eop && p_ring_in.cmd_r) |
---|
| 451 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 452 | else |
---|
| 453 | r_ring_cmd_fsm = NALLOC; |
---|
| 454 | } |
---|
| 455 | |
---|
| 456 | } |
---|
| 457 | else // preempt && !header |
---|
| 458 | { |
---|
| 459 | // palloc=1, means TG is not allocated, thus, if last flit, all targets must be in IDLE state |
---|
| 460 | if(eop && p_ring_in.cmd_r && (p_ring_in.cmd_palloc == 1)) |
---|
| 461 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 462 | else |
---|
| 463 | r_ring_cmd_fsm = NALLOC; |
---|
| 464 | |
---|
| 465 | } |
---|
| 466 | |
---|
| 467 | } |
---|
| 468 | |
---|
| 469 | else // !preempt |
---|
| 470 | { |
---|
| 471 | if(p_ring_in.cmd_w && eop && p_ring_in.cmd_r && !p_ring_in.cmd_palloc) |
---|
| 472 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 473 | else |
---|
| 474 | r_ring_cmd_fsm = NALLOC; |
---|
| 475 | |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | } |
---|
| 479 | break; |
---|
| 480 | |
---|
| 481 | case PALLOC2: |
---|
| 482 | #ifdef T_DEBUG |
---|
| 483 | if(p_ring_in.cmd_preempt || p_ring_in.cmd_w) |
---|
| 484 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
| 485 | << " - ring_cmd_fsm = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
---|
| 486 | << " - in preempt : " << p_ring_in.cmd_preempt |
---|
| 487 | << " - in rok : " << p_ring_in.cmd_w |
---|
| 488 | << " - in data : " << std::hex << p_ring_in.cmd_data |
---|
| 489 | << " - in wok : " << p_ring_in.cmd_r |
---|
| 490 | << " - fifo wok : " << m_cmd_fifo.wok() |
---|
| 491 | << std::endl; |
---|
| 492 | #endif |
---|
| 493 | { |
---|
| 494 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
| 495 | |
---|
| 496 | if(p_ring_in.cmd_preempt) |
---|
| 497 | { |
---|
| 498 | cmd_fifo_put = m_cmd_fifo.wok(); |
---|
| 499 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
| 500 | |
---|
| 501 | if(eop && m_cmd_fifo.wok()) |
---|
| 502 | r_ring_cmd_fsm = NALLOC; |
---|
| 503 | else |
---|
| 504 | r_ring_cmd_fsm = PALLOC2; |
---|
| 505 | break; |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | if(p_ring_in.cmd_w && eop && p_ring_in.cmd_r) |
---|
| 509 | { |
---|
| 510 | r_ring_cmd_fsm = PALLOC1; |
---|
| 511 | } |
---|
| 512 | |
---|
| 513 | } |
---|
| 514 | break; |
---|
| 515 | |
---|
| 516 | case PALLOC1: |
---|
| 517 | #ifdef T_DEBUG |
---|
| 518 | std::cout << std::dec << sc_time_stamp() << " - " << m_name |
---|
| 519 | << " - ring_cmd_fsm = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
---|
| 520 | << " - in preempt : " << p_ring_in.cmd_preempt |
---|
| 521 | << " - in rok : " << p_ring_in.cmd_w |
---|
| 522 | << " - in data : " << std::hex << p_ring_in.cmd_data |
---|
| 523 | << " - in wok : " << p_ring_in.cmd_r |
---|
| 524 | << " - fifo wok : " << m_cmd_fifo.wok() |
---|
| 525 | << std::endl; |
---|
| 526 | #endif |
---|
| 527 | { |
---|
| 528 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
| 529 | |
---|
| 530 | if ( p_ring_in.cmd_preempt && m_cmd_fifo.wok() && eop ) |
---|
| 531 | { |
---|
| 532 | |
---|
| 533 | cmd_fifo_put = true; |
---|
| 534 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
| 535 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 536 | |
---|
| 537 | } |
---|
| 538 | |
---|
| 539 | else // !p_ring_in.cmd_w || !m_cmd_fifo.wok() || !eop |
---|
| 540 | { |
---|
| 541 | |
---|
| 542 | cmd_fifo_put = p_ring_in.cmd_preempt && m_cmd_fifo.wok(); |
---|
| 543 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
| 544 | r_ring_cmd_fsm = PALLOC1; |
---|
| 545 | |
---|
| 546 | } |
---|
| 547 | } |
---|
| 548 | break; |
---|
| 549 | |
---|
| 550 | } // end switch cmd fsm |
---|
| 551 | |
---|
| 552 | //////////////////////// |
---|
| 553 | // fifos update // |
---|
| 554 | //////////////////////// |
---|
| 555 | //-- to keep trace on ring traffic : a valid command is received by the target |
---|
| 556 | tgt_rsp.rspval = rsp_fifo_get; |
---|
| 557 | tgt_rsp.flit = m_rsp_fifo.read(); |
---|
| 558 | tgt_rsp.state = ring_rsp_fsm_state_str_t[r_ring_rsp_fsm]; |
---|
| 559 | |
---|
| 560 | tgt_cmd_val = cmd_fifo_put; |
---|
| 561 | //tgt_rsp_val = rsp_fifo_get; |
---|
| 562 | // local cmd fifo update |
---|
| 563 | if ( cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.put_and_get(cmd_fifo_data); |
---|
| 564 | else if ( cmd_fifo_put && !cmd_fifo_get ) m_cmd_fifo.simple_put(cmd_fifo_data); |
---|
| 565 | else if ( !cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.simple_get(); |
---|
| 566 | // local rsp fifo update |
---|
| 567 | if ( rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.put_and_get(rsp_fifo_data); |
---|
| 568 | else if ( rsp_fifo_put && !rsp_fifo_get ) m_rsp_fifo.simple_put(rsp_fifo_data); |
---|
| 569 | else if ( !rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.simple_get(); |
---|
| 570 | |
---|
| 571 | |
---|
| 572 | #ifdef T_DEBUG |
---|
| 573 | m_cpt +=1; |
---|
| 574 | #endif |
---|
| 575 | } // end Transition() |
---|
| 576 | |
---|
| 577 | /////////////////////////////////////////////////////////////////// |
---|
| 578 | void genMoore(cmd_out_t &p_cmd_out, rsp_in_t &p_rsp_in) |
---|
| 579 | /////////////////////////////////////////////////////////////////// |
---|
| 580 | { |
---|
| 581 | p_cmd_out.write = m_cmd_fifo.rok(); |
---|
| 582 | p_cmd_out.data = (sc_dt::sc_uint<ring_cmd_data_size>) m_cmd_fifo.read(); |
---|
| 583 | |
---|
| 584 | p_rsp_in.read = m_rsp_fifo.wok(); |
---|
| 585 | |
---|
| 586 | } // end genMoore |
---|
| 587 | |
---|
| 588 | /////////////////////////////////////////////////////////////////// |
---|
| 589 | void update_ring_signals(ring_signal_t p_ring_in, ring_signal_t &p_ring_out) |
---|
| 590 | /////////////////////////////////////////////////////////////////// |
---|
| 591 | { |
---|
| 592 | |
---|
| 593 | switch( r_ring_rsp_fsm ) |
---|
| 594 | { |
---|
| 595 | case RSP_IDLE: |
---|
| 596 | p_ring_out.rsp_grant = !m_rsp_fifo.rok() && p_ring_in.rsp_grant; |
---|
| 597 | |
---|
| 598 | p_ring_out.rsp_palloc = p_ring_in.rsp_palloc; |
---|
| 599 | p_ring_out.rsp_preempt = p_ring_in.rsp_preempt; |
---|
| 600 | |
---|
| 601 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
---|
| 602 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
| 603 | |
---|
| 604 | break; |
---|
| 605 | |
---|
| 606 | case OWNER: |
---|
| 607 | { |
---|
| 608 | bool eop = ( (int) ((m_rsp_fifo.read() >> (ring_rsp_data_size - 1) ) & 0x1) == 1); |
---|
| 609 | p_ring_out.rsp_grant = (!m_rsp_fifo.rok() || (eop && p_ring_in.rsp_r)) ; |
---|
| 610 | |
---|
| 611 | p_ring_out.rsp_palloc = 0; |
---|
| 612 | p_ring_out.rsp_preempt = 0; |
---|
| 613 | |
---|
| 614 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
---|
| 615 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
---|
| 616 | |
---|
| 617 | } |
---|
| 618 | break; |
---|
| 619 | |
---|
| 620 | case SENDING: |
---|
| 621 | { |
---|
| 622 | bool eop = ( (int) ((m_rsp_fifo.read() >> (ring_rsp_data_size - 1) ) & 0x1) == 1); |
---|
| 623 | |
---|
| 624 | p_ring_out.rsp_palloc = p_ring_in.rsp_palloc; |
---|
| 625 | p_ring_out.rsp_preempt = p_ring_in.rsp_preempt; |
---|
| 626 | |
---|
| 627 | // if preempt : Init Gate is sending to Local Target, ring preempted |
---|
| 628 | if (p_ring_in.rsp_preempt) |
---|
| 629 | { |
---|
| 630 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
---|
| 631 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
| 632 | p_ring_out.rsp_grant = 0; |
---|
| 633 | } |
---|
| 634 | else |
---|
| 635 | { |
---|
| 636 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
---|
| 637 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
---|
| 638 | p_ring_out.rsp_grant = m_rsp_fifo.rok() && p_ring_in.rsp_r && eop && !p_ring_in.rsp_palloc; |
---|
| 639 | } |
---|
| 640 | } |
---|
| 641 | break; |
---|
| 642 | |
---|
| 643 | case WAIT_PALLOC_END: |
---|
| 644 | { |
---|
| 645 | bool eop = ((int) (p_ring_in.rsp_data >> (ring_rsp_data_size - 1) ) & 0x1) == 1; |
---|
| 646 | |
---|
| 647 | p_ring_out.rsp_grant = p_ring_in.rsp_w && p_ring_in.rsp_r && eop; |
---|
| 648 | |
---|
| 649 | p_ring_out.rsp_palloc = p_ring_in.rsp_palloc; |
---|
| 650 | p_ring_out.rsp_preempt = p_ring_in.rsp_preempt; |
---|
| 651 | |
---|
| 652 | p_ring_out.rsp_w = p_ring_in.rsp_w; //p_ring_in.rsp_preempt; |
---|
| 653 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
| 654 | } |
---|
| 655 | break; |
---|
| 656 | } // end switch |
---|
| 657 | |
---|
| 658 | p_ring_out.rsp_header = p_ring_in.rsp_header; |
---|
| 659 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
| 660 | |
---|
| 661 | p_ring_out.cmd_w = p_ring_in.cmd_w; |
---|
| 662 | p_ring_out.cmd_data = p_ring_in.cmd_data; |
---|
| 663 | |
---|
| 664 | p_ring_out.cmd_grant = p_ring_in.cmd_grant; |
---|
| 665 | |
---|
| 666 | p_ring_out.cmd_preempt = p_ring_in.cmd_preempt; |
---|
| 667 | p_ring_out.cmd_header = p_ring_in.cmd_header; |
---|
| 668 | p_ring_out.cmd_palloc = p_ring_in.cmd_palloc; |
---|
| 669 | |
---|
| 670 | switch( r_ring_cmd_fsm ) |
---|
| 671 | { |
---|
| 672 | case CMD_IDLE: |
---|
| 673 | { |
---|
| 674 | vci_addr_t rtgtid = (vci_addr_t) (((p_ring_in.cmd_data >> (ring_cmd_data_size-vci_param::S-1)) << (vci_param::N-vci_param::S))); |
---|
| 675 | bool islocalm = m_lt[rtgtid] && (m_rt[rtgtid] == m_tgtid); // multicast |
---|
| 676 | bool isbrdcst = (p_ring_in.cmd_data & 0x1) == 0x1; |
---|
| 677 | bool islocalb = ( (int) ((p_ring_in.cmd_data >> 1 ) & 0xF) == m_tgtid); // broadcast |
---|
| 678 | |
---|
| 679 | if (p_ring_in.cmd_w && ((isbrdcst && islocalb) || (!isbrdcst && islocalm))) |
---|
| 680 | { |
---|
| 681 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
| 682 | } |
---|
| 683 | else |
---|
| 684 | { |
---|
| 685 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
| 686 | } |
---|
| 687 | |
---|
| 688 | } |
---|
| 689 | break; |
---|
| 690 | |
---|
| 691 | case ALLOC: |
---|
| 692 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
| 693 | break; |
---|
| 694 | |
---|
| 695 | case NALLOC: |
---|
| 696 | { |
---|
| 697 | vci_addr_t rtgtid = (vci_addr_t) (((p_ring_in.cmd_data >> (ring_cmd_data_size-vci_param::S-1)) << (vci_param::N-vci_param::S))); |
---|
| 698 | bool islocalm = m_lt[rtgtid] && (m_rt[rtgtid] == m_tgtid); // multicast |
---|
| 699 | bool isbrdcst = (p_ring_in.cmd_data & 0x1) == 0x1; |
---|
| 700 | bool islocalb = ( (int) ((p_ring_in.cmd_data >> 1 ) & 0xF) == m_tgtid); // broadcast |
---|
| 701 | |
---|
| 702 | if (p_ring_in.cmd_preempt && p_ring_in.cmd_header && ((isbrdcst && islocalb) || (!isbrdcst && islocalm))) |
---|
| 703 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
| 704 | else |
---|
| 705 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
| 706 | |
---|
| 707 | } |
---|
| 708 | break; |
---|
| 709 | |
---|
| 710 | case PALLOC2: |
---|
| 711 | if(p_ring_in.cmd_preempt) |
---|
| 712 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
| 713 | else |
---|
| 714 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
| 715 | break; |
---|
| 716 | |
---|
| 717 | case PALLOC1: |
---|
| 718 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
| 719 | break; |
---|
| 720 | |
---|
| 721 | } // end switch |
---|
| 722 | |
---|
| 723 | } // end update_ring_signals |
---|
| 724 | |
---|
| 725 | }; |
---|
| 726 | |
---|
| 727 | }} // end namespace |
---|
| 728 | #endif // SOCLIB_CABA_DSPIN_ALLOC_RING_TARGET_FAST_H |
---|
| 729 | |
---|