[8] | 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 : March 2010 |
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| 24 | * |
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| 25 | * Copyright: UPMC - LIP6 |
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| 26 | */ |
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[11] | 27 | #include <systemc> |
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[8] | 28 | #include "vci_initiator.h" |
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| 29 | #include "generic_fifo.h" |
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| 30 | #include "mapping_table.h" |
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| 31 | #include "ring_signals_2.h" |
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| 32 | #include "gate_ports_2.h" |
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| 33 | |
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[14] | 34 | //#define HT_DEBUG |
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[8] | 35 | //#define HT_DEBUG_FSM |
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| 36 | |
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| 37 | namespace soclib { namespace caba { |
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| 38 | |
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| 39 | using soclib::common::IntTab; |
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| 40 | |
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| 41 | #ifdef HT_DEBUG_FSM |
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| 42 | namespace { |
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| 43 | const char *ring_rsp_fsm_state_str_ht[] = { |
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| 44 | "RSP_IDLE", |
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| 45 | "DEFAULT", |
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| 46 | "KEEP", |
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| 47 | }; |
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| 48 | const char *ring_cmd_fsm_state_str_ht[] = { |
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| 49 | "CMD_IDLE", |
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| 50 | "BROADCAST_0", |
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| 51 | "BROADCAST_1", |
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| 52 | "LOCAL", |
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| 53 | "RING", |
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| 54 | }; |
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| 55 | } |
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| 56 | #endif |
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| 57 | |
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| 58 | template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size> |
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| 59 | class HalfGatewayTarget2 |
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| 60 | { |
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| 61 | |
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| 62 | typedef typename vci_param::fast_addr_t vci_addr_t; |
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| 63 | typedef RingSignals2 ring_signal_t; |
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| 64 | typedef soclib::caba::GateTarget2<ring_cmd_data_size, ring_rsp_data_size> gate_target_t; |
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| 65 | |
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| 66 | private: |
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| 67 | |
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| 68 | enum ring_cmd_fsm_state_e { |
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| 69 | CMD_IDLE, // waiting for first flit of a command packet |
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| 70 | BROADCAST_0, |
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| 71 | BROADCAST_1, |
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| 72 | LOCAL, // next flit of a local cmd packet |
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| 73 | RING, // next flit of a ring cmd packet |
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| 74 | }; |
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| 75 | |
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| 76 | // cmd token allocation fsm |
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| 77 | enum ring_rsp_fsm_state_e { |
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| 78 | RSP_IDLE, |
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| 79 | DEFAULT, |
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| 80 | KEEP, |
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| 81 | }; |
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| 82 | |
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| 83 | // structural parameters |
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| 84 | bool m_alloc_target; |
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| 85 | bool m_local; |
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| 86 | std::string m_name; |
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| 87 | |
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| 88 | // internal registers |
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| 89 | sc_signal<int> r_ring_cmd_fsm; // ring command packet FSM |
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| 90 | sc_signal<int> r_ring_rsp_fsm; // ring response packet FSM |
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| 91 | |
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| 92 | |
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| 93 | // internal fifos |
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| 94 | GenericFifo<uint64_t > m_cmd_fifo; // fifo for the local command paquet |
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| 95 | GenericFifo<uint64_t > m_rsp_fifo; // fifo for the local response paquet |
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| 96 | |
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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 | soclib::common::IntTab m_ringid; |
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| 100 | |
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| 101 | bool trace(int sc_time_stamp) |
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| 102 | { |
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| 103 | int time_stamp=0; |
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| 104 | char *ctime_stamp= getenv("FROM_CYCLE"); |
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| 105 | |
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| 106 | if (ctime_stamp) time_stamp=atoi(ctime_stamp); |
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| 107 | |
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| 108 | return sc_time_stamp >= time_stamp; |
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| 109 | |
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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 | HalfGatewayTarget2( |
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| 115 | const char *name, |
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| 116 | bool alloc_target, |
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| 117 | const int &wrapper_fifo_depth, |
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| 118 | const soclib::common::MappingTable &mt, |
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| 119 | const soclib::common::IntTab &ringid, |
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| 120 | bool local) |
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| 121 | : m_name(name), |
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| 122 | m_alloc_target(alloc_target), |
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| 123 | m_cmd_fifo("m_cmd_fifo", wrapper_fifo_depth), |
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| 124 | m_rsp_fifo("m_rsp_fifo", wrapper_fifo_depth), |
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| 125 | m_lt(mt.getLocalityTable<typename vci_param::fast_addr_t>(ringid)), |
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| 126 | m_ringid(ringid), |
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| 127 | m_local(local), |
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| 128 | r_ring_cmd_fsm("r_ring_cmd_fsm"), |
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| 129 | r_ring_rsp_fsm("r_ring_rsp_fsm") |
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| 130 | { |
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| 131 | } // end constructor |
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| 132 | |
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| 133 | void reset() |
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| 134 | { |
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| 135 | if(m_alloc_target) |
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| 136 | r_ring_rsp_fsm = DEFAULT; |
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| 137 | else |
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| 138 | r_ring_rsp_fsm = RSP_IDLE; |
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| 139 | |
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| 140 | r_ring_cmd_fsm = CMD_IDLE; |
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| 141 | m_cmd_fifo.init(); |
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| 142 | m_rsp_fifo.init(); |
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| 143 | } |
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| 144 | //////////////////////////////// |
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| 145 | // transition |
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| 146 | //////////////////////////////// |
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| 147 | void transition(const gate_target_t &p_gate_target, const ring_signal_t p_ring_in) |
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| 148 | { |
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| 149 | |
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| 150 | // bool cmd_fifo_get = false; |
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| 151 | bool cmd_fifo_put = false; |
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| 152 | uint64_t cmd_fifo_data = 0; |
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| 153 | |
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| 154 | bool rsp_fifo_get = false; |
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| 155 | bool rsp_fifo_put = false; |
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| 156 | uint64_t rsp_fifo_data = 0; |
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| 157 | |
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| 158 | #ifdef HT_DEBUG_FSM |
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[14] | 159 | if( trace(sc_time_stamp())) |
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| 160 | std::cout << sc_time_stamp() << " - " << m_name |
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| 161 | << " - ring cmd = " << ring_cmd_fsm_state_str_ht[r_ring_cmd_fsm] |
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| 162 | << " - ring rsp = " << ring_rsp_fsm_state_str_ht[r_ring_rsp_fsm] |
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| 163 | << std::endl; |
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[8] | 164 | #endif |
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| 165 | |
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| 166 | //////////// VCI CMD FSM ///////////////////////// |
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| 167 | |
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| 168 | if (p_gate_target.rsp_rok.read()) { |
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| 169 | rsp_fifo_data = (uint64_t) p_gate_target.rsp_data.read(); |
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| 170 | rsp_fifo_put = m_rsp_fifo.wok(); |
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| 171 | } |
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| 172 | |
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| 173 | bool cmd_fifo_get = p_gate_target.cmd_wok.read(); |
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| 174 | |
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| 175 | //////////// RING RSP FSM (distributed) ///////////////////////// |
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| 176 | |
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| 177 | switch( r_ring_rsp_fsm ) |
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| 178 | { |
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| 179 | case RSP_IDLE: |
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| 180 | #ifdef HT_DEBUG |
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| 181 | if( trace(sc_time_stamp())) |
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| 182 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : RSP_IDLE" |
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| 183 | << " -- fifo rok : " << m_rsp_fifo.rok() |
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| 184 | << " -- ring rok : " << p_ring_in.rsp_w |
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| 185 | << " -- ringin rsp grant : " << p_ring_in.rsp_grant |
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[14] | 186 | << " -- fifo rsp data : " << std::hex << m_rsp_fifo.read() |
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[8] | 187 | << std::endl; |
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| 188 | #endif |
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| 189 | if ( p_ring_in.rsp_grant && m_rsp_fifo.rok() ) |
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| 190 | |
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| 191 | r_ring_rsp_fsm = KEEP; |
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| 192 | |
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| 193 | break; |
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| 194 | |
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| 195 | case DEFAULT: |
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| 196 | #ifdef HT_DEBUG |
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| 197 | if( trace(sc_time_stamp())) |
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| 198 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : DEFAULT " |
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| 199 | << " -- fifo_rsp_data : " << std::hex << m_rsp_fifo.read() |
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| 200 | << std::endl; |
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[14] | 201 | #endif |
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| 202 | if ( m_rsp_fifo.rok()) // && p_ring_in.rsp_r ) |
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| 203 | { |
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| 204 | |
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[8] | 205 | rsp_fifo_get = p_ring_in.rsp_r; //true; |
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| 206 | r_ring_rsp_fsm = KEEP; |
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| 207 | } |
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| 208 | else if ( !p_ring_in.rsp_grant ) |
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| 209 | r_ring_rsp_fsm = RSP_IDLE; |
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| 210 | break; |
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| 211 | |
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| 212 | case KEEP: |
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| 213 | |
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| 214 | if(m_rsp_fifo.rok() && p_ring_in.rsp_r) |
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| 215 | { |
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| 216 | #ifdef HT_DEBUG |
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| 217 | if( trace(sc_time_stamp())) |
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| 218 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : KEEP " |
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| 219 | << " -- fifo_rok : " << m_rsp_fifo.rok() |
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| 220 | << " -- ring_in_wok : " << p_ring_in.rsp_r |
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| 221 | << " -- fifo_out_data : " << std::hex << m_rsp_fifo.read() |
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| 222 | << std::endl; |
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| 223 | #endif |
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| 224 | rsp_fifo_get = true; |
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| 225 | if ((int) ((m_rsp_fifo.read() >> 32 ) & 0x1) == 1) |
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| 226 | { |
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| 227 | if ( p_ring_in.rsp_grant ) |
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| 228 | r_ring_rsp_fsm = DEFAULT; |
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| 229 | else |
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| 230 | r_ring_rsp_fsm = RSP_IDLE; |
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| 231 | } |
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| 232 | } |
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| 233 | break; |
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| 234 | |
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| 235 | } // end switch ring cmd fsm |
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| 236 | |
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| 237 | /////////// RING CMD FSM //////////////////////// |
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| 238 | switch( r_ring_cmd_fsm ) |
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| 239 | { |
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| 240 | |
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| 241 | case CMD_IDLE: |
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| 242 | { |
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| 243 | vci_addr_t rtgtid = (vci_addr_t) ((p_ring_in.cmd_data >> 1) << 2); |
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[14] | 244 | int cluster = (int) (p_ring_in.cmd_data >> 24) & 0xF; // a voir FF |
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[8] | 245 | bool brdcst = (IntTab(cluster) == m_ringid) && ((p_ring_in.cmd_data & 0x1) == 0X1) ; |
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| 246 | bool loc = !((p_ring_in.cmd_data & 0x1) == 0x1) && !m_lt[rtgtid] && !m_local; |
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| 247 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 248 | |
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| 249 | #ifdef HT_DEBUG |
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| 250 | if( trace(sc_time_stamp())) { |
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| 251 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 252 | << " -- ring_cmd_fsm -- CMD_IDLE " |
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[14] | 253 | << " - in rok : " << p_ring_in.cmd_w |
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| 254 | << " - addr : " << std::hex << rtgtid |
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| 255 | << " - brdcst : " << brdcst |
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| 256 | << " - eop : " << eop |
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| 257 | << " - isloc : " << loc |
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| 258 | << " - in wok : " << p_ring_in.cmd_r |
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| 259 | << " - fifo wok : " << m_cmd_fifo.wok() |
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| 260 | << " - ringid : " << m_ringid |
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| 261 | << " - cluster : " << cluster |
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| 262 | << " - intTab : " << IntTab(cluster) |
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[8] | 263 | << std::endl; |
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| 264 | } |
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| 265 | #endif |
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| 266 | if(p_ring_in.cmd_w && !eop && brdcst && !m_cmd_fifo.wok()) { |
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| 267 | r_ring_cmd_fsm = BROADCAST_0; |
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| 268 | } |
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| 269 | |
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| 270 | if(p_ring_in.cmd_w && !eop && brdcst && m_cmd_fifo.wok()) { |
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| 271 | r_ring_cmd_fsm = BROADCAST_1; |
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| 272 | cmd_fifo_put = true; |
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| 273 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 274 | |
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| 275 | } |
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| 276 | |
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| 277 | if (p_ring_in.cmd_w && !eop && !brdcst && loc) { |
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| 278 | r_ring_cmd_fsm = LOCAL; |
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| 279 | cmd_fifo_put = m_cmd_fifo.wok(); |
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| 280 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 281 | |
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| 282 | } |
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| 283 | |
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| 284 | if (p_ring_in.cmd_w && !eop && !brdcst && !loc) { |
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| 285 | r_ring_cmd_fsm = RING; |
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| 286 | } |
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| 287 | |
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| 288 | if (!p_ring_in.cmd_w || eop) { |
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| 289 | r_ring_cmd_fsm = CMD_IDLE; |
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| 290 | } |
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| 291 | |
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| 292 | } |
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| 293 | |
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| 294 | break; |
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| 295 | |
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| 296 | case BROADCAST_0: |
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| 297 | |
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| 298 | #ifdef HT_DEBUG |
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| 299 | if( trace(sc_time_stamp())) |
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| 300 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 301 | << " -- ring_cmd_fsm -- BROADCAST_0 " |
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| 302 | << " -- ringin cmd rok : " << p_ring_in.cmd_w |
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| 303 | << " -- ringin cmd wok : " << p_ring_in.cmd_r |
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| 304 | << " -- ringin data : " << std::hex << p_ring_in.cmd_data |
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| 305 | << " -- fifo cmd wok : " << m_cmd_fifo.wok() |
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| 306 | << std::endl; |
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| 307 | #endif |
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| 308 | if ( m_cmd_fifo.wok() ) |
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| 309 | { |
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| 310 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 311 | r_ring_cmd_fsm = BROADCAST_1; |
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| 312 | |
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| 313 | } else { |
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| 314 | r_ring_cmd_fsm = BROADCAST_0; |
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| 315 | } |
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| 316 | |
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| 317 | break; |
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| 318 | |
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| 319 | case BROADCAST_1: |
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| 320 | { |
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| 321 | #ifdef HT_DEBUG |
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| 322 | if( trace(sc_time_stamp())) |
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| 323 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 324 | << " -- ring_cmd_fsm -- BROADCAST_1 " |
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| 325 | << " -- ringin cmd rok : " << p_ring_in.cmd_w |
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| 326 | << " -- ringin cmd wok : " << p_ring_in.cmd_r |
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| 327 | << " -- ringin data : " << std::hex << p_ring_in.cmd_data |
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| 328 | << " -- fifo cmd wok : " << m_cmd_fifo.wok() |
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| 329 | << std::endl; |
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| 330 | #endif |
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| 331 | |
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| 332 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 333 | |
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| 334 | if ( p_ring_in.cmd_w && m_cmd_fifo.wok() && eop ) |
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| 335 | { |
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| 336 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 337 | cmd_fifo_put = 1; |
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| 338 | r_ring_cmd_fsm = CMD_IDLE; |
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| 339 | |
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| 340 | } |
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| 341 | else { |
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| 342 | r_ring_cmd_fsm = BROADCAST_1; |
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| 343 | } |
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| 344 | |
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| 345 | } |
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| 346 | break; |
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| 347 | |
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| 348 | case LOCAL: |
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| 349 | { |
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| 350 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 351 | #ifdef HT_DEBUG |
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| 352 | if( trace(sc_time_stamp())) |
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| 353 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 354 | << " -- ring_cmd_fsm -- LOCAL " |
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| 355 | << " -- in cmd rok : " << p_ring_in.cmd_w |
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| 356 | << " -- in cmd wok : " << p_ring_in.cmd_r |
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| 357 | << " -- in data : " << std::hex << p_ring_in.cmd_data |
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| 358 | << " -- fifo wok : " << m_cmd_fifo.wok() |
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| 359 | << " -- eop : " << eop |
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| 360 | << std::endl; |
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| 361 | #endif |
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| 362 | |
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| 363 | if ( p_ring_in.cmd_w && m_cmd_fifo.wok() && eop ) |
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| 364 | { |
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| 365 | |
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| 366 | cmd_fifo_put = true; |
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| 367 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 368 | r_ring_cmd_fsm = CMD_IDLE; |
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| 369 | |
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| 370 | } |
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| 371 | |
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| 372 | if ( !p_ring_in.cmd_w || !m_cmd_fifo.wok() || !eop ) |
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| 373 | { |
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| 374 | |
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| 375 | cmd_fifo_put = p_ring_in.cmd_w && m_cmd_fifo.wok(); |
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| 376 | cmd_fifo_data = p_ring_in.cmd_data; |
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| 377 | r_ring_cmd_fsm = LOCAL; |
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| 378 | |
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| 379 | } |
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| 380 | } |
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| 381 | break; |
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| 382 | |
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| 383 | case RING: |
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| 384 | { |
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| 385 | |
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| 386 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 387 | #ifdef HT_DEBUG |
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| 388 | if( trace(sc_time_stamp())) |
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| 389 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 390 | << " -- ring_cmd_fsm -- RING " |
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| 391 | << " -- in cmd rok : " << p_ring_in.cmd_w |
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| 392 | << " -- in data : " << std::hex << p_ring_in.cmd_data |
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| 393 | << " -- in wok : " << p_ring_in.cmd_r |
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| 394 | << " -- eop : " << eop |
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| 395 | |
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| 396 | << std::endl; |
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| 397 | #endif |
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| 398 | |
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| 399 | if ( p_ring_in.cmd_w && eop ) { |
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| 400 | r_ring_cmd_fsm = CMD_IDLE; |
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| 401 | } |
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| 402 | else { |
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| 403 | r_ring_cmd_fsm = RING; |
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| 404 | } |
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| 405 | } |
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| 406 | break; |
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| 407 | } // end switch cmd fsm |
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| 408 | |
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| 409 | //////////////////////// |
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| 410 | // fifos update // |
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| 411 | //////////////////////// |
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| 412 | |
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| 413 | // local cmd fifo update |
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| 414 | if ( cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.put_and_get(cmd_fifo_data); |
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| 415 | else if ( cmd_fifo_put && !cmd_fifo_get ) m_cmd_fifo.simple_put(cmd_fifo_data); |
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| 416 | else if ( !cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.simple_get(); |
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| 417 | // local rsp fifo update |
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| 418 | if ( rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.put_and_get(rsp_fifo_data); |
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| 419 | else if ( rsp_fifo_put && !rsp_fifo_get ) m_rsp_fifo.simple_put(rsp_fifo_data); |
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| 420 | else if ( !rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.simple_get(); |
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| 421 | |
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| 422 | } // end Transition() |
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| 423 | |
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| 424 | /////////////////////////////////////////////////////////////////// |
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| 425 | void genMoore(gate_target_t &p_gate_target) |
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| 426 | /////////////////////////////////////////////////////////////////// |
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| 427 | { |
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| 428 | p_gate_target.cmd_w = m_cmd_fifo.rok(); |
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[11] | 429 | p_gate_target.cmd_data = (sc_uint<ring_cmd_data_size>) m_cmd_fifo.read(); |
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[8] | 430 | |
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| 431 | p_gate_target.rsp_r= m_rsp_fifo.wok(); |
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[14] | 432 | |
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[8] | 433 | } // end genMoore |
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| 434 | |
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| 435 | /////////////////////////////////////////////////////////////////// |
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| 436 | void update_ring_signals(ring_signal_t p_ring_in, ring_signal_t &p_ring_out) |
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| 437 | /////////////////////////////////////////////////////////////////// |
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| 438 | { |
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| 439 | |
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| 440 | switch( r_ring_rsp_fsm ) |
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| 441 | { |
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| 442 | case RSP_IDLE: |
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| 443 | p_ring_out.rsp_grant = p_ring_in.rsp_grant && !m_rsp_fifo.rok(); |
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| 444 | |
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| 445 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
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| 446 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
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| 447 | |
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| 448 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
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| 449 | break; |
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| 450 | |
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| 451 | case DEFAULT: |
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| 452 | p_ring_out.rsp_grant = !( m_rsp_fifo.rok()); |
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| 453 | |
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| 454 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
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| 455 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
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| 456 | |
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| 457 | p_ring_out.rsp_r = 1; |
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| 458 | break; |
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| 459 | |
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| 460 | case KEEP: |
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| 461 | int rsp_fifo_eop = (int) ((m_rsp_fifo.read() >> 32) & 0x1); |
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| 462 | p_ring_out.rsp_grant = m_rsp_fifo.rok() && p_ring_in.rsp_r && (rsp_fifo_eop == 1); |
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| 463 | |
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| 464 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
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| 465 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
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| 466 | |
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| 467 | p_ring_out.rsp_r = 1; |
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| 468 | |
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| 469 | break; |
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| 470 | |
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| 471 | } // end switch |
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| 472 | |
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| 473 | p_ring_out.cmd_w = p_ring_in.cmd_w; |
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| 474 | p_ring_out.cmd_data = p_ring_in.cmd_data; |
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| 475 | |
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| 476 | p_ring_out.cmd_grant = p_ring_in.cmd_grant; |
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| 477 | |
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| 478 | switch( r_ring_cmd_fsm ) |
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| 479 | { |
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| 480 | case CMD_IDLE: |
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| 481 | { |
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| 482 | |
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| 483 | vci_addr_t rtgtid = (vci_addr_t) ((p_ring_in.cmd_data >> 1) << 2); |
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[14] | 484 | int cluster = (int) (p_ring_in.cmd_data >> 24) & 0xF; // a voir FF |
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[8] | 485 | bool brdcst = (IntTab(cluster) == m_ringid) && ((p_ring_in.cmd_data & 0x1) == 0X1) ; |
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| 486 | bool loc = !((p_ring_in.cmd_data & 0x1) == 0x1) && !m_lt[rtgtid] && !m_local; |
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| 487 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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| 488 | |
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| 489 | if(p_ring_in.cmd_w && !eop && brdcst && !m_cmd_fifo.wok()) { |
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| 490 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
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| 491 | } |
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| 492 | if(p_ring_in.cmd_w && !eop && brdcst && m_cmd_fifo.wok()) { |
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| 493 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
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| 494 | |
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| 495 | } |
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| 496 | if (p_ring_in.cmd_w && !eop && !brdcst && loc) { |
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| 497 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
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| 498 | |
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| 499 | } |
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| 500 | if (p_ring_in.cmd_w && !eop && !brdcst && !loc) { |
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| 501 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
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| 502 | } |
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| 503 | |
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| 504 | if (!p_ring_in.cmd_w || eop) { |
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| 505 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
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| 506 | } |
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| 507 | } |
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| 508 | break; |
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| 509 | case BROADCAST_0: |
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| 510 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
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| 511 | break; |
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| 512 | |
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| 513 | case BROADCAST_1: |
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| 514 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
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| 515 | break; |
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| 516 | |
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| 517 | case LOCAL: |
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| 518 | |
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| 519 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
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| 520 | break; |
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| 521 | |
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| 522 | case RING: |
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| 523 | |
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| 524 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
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| 525 | break; |
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| 526 | |
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| 527 | } // end switch |
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| 528 | |
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| 529 | } // end update_ring_signals |
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| 530 | |
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| 531 | }; |
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| 532 | |
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| 533 | }} // end namespace |
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| 534 | |
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| 535 | |
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