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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27 | #ifndef SOCLIB_CABA_VCI_RING_TARGET_H |
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28 | #define SOCLIB_CABA_VCI_RING_TARGET_H |
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29 | |
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30 | #include "vci_initiator.h" |
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31 | #include "generic_fifo.h" |
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32 | #include "mapping_table.h" |
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33 | #include "ring_signals_2.h" |
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34 | |
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35 | //#define T_DEBUG |
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36 | //#define TR_DEBUG |
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37 | //#define T_DEBUG_FSM |
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38 | |
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39 | namespace soclib { namespace caba { |
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40 | #ifdef T_DEBUG_FSM |
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41 | namespace { |
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42 | const char *vci_cmd_fsm_state_str_t[] = { |
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43 | "CMD_FIRST_HEADER", |
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44 | "CMD_SECOND_HEADER", |
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45 | "WDATA", |
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46 | }; |
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47 | const char *vci_rsp_fsm_state_str_t[] = { |
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48 | "RSP_HEADER", |
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49 | "RSP_DATA", |
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50 | }; |
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51 | const char *ring_rsp_fsm_state_str_t[] = { |
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52 | "RSP_IDLE", |
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53 | "DEFAULT", |
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54 | "KEEP", |
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55 | }; |
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56 | const char *ring_cmd_fsm_state_str_t[] = { |
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57 | "CMD_IDLE", |
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58 | "BROADCAST_0", |
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59 | "BROADCAST_1", |
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60 | "LOCAL", |
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61 | "RING", |
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62 | }; |
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63 | } |
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64 | #endif |
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65 | |
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66 | template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size> |
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67 | class VciRingTarget |
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68 | { |
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69 | |
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70 | typedef typename vci_param::fast_addr_t vci_addr_t; |
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71 | typedef RingSignals2 ring_signal_t; |
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72 | typedef soclib::caba::VciInitiator<vci_param> vci_initiator_t; |
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73 | |
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74 | private: |
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75 | enum vci_cmd_fsm_state_e { |
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76 | CMD_FIRST_HEADER, // first flit for a ring cmd packet (read or write) |
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77 | CMD_SECOND_HEADER, // second flit for a ring cmd packet |
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78 | WDATA, // data flit for a ring cmd write packet |
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79 | }; |
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80 | |
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81 | enum vci_rsp_fsm_state_e { |
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82 | RSP_HEADER, // first flit for a ring rsp packet (read or write) |
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83 | DATA, // next flit for a ring rsp packet |
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84 | }; |
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85 | |
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86 | enum ring_cmd_fsm_state_e { |
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87 | CMD_IDLE, // waiting for first flit of a command packet |
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88 | BROADCAST_0, |
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89 | BROADCAST_1, |
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90 | LOCAL, // next flit of a local cmd packet |
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91 | RING, // next flit of a ring cmd packet |
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92 | }; |
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93 | |
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94 | // cmd token allocation fsm |
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95 | enum ring_rsp_fsm_state_e { |
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96 | RSP_IDLE, |
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97 | DEFAULT, |
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98 | KEEP, |
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99 | }; |
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100 | |
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101 | // structural parameters |
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102 | bool m_alloc_target; |
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103 | int m_tgtid; |
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104 | std::string m_name; |
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105 | |
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106 | // internal registers |
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107 | sc_signal<int> r_ring_cmd_fsm; // ring command packet FSM |
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108 | sc_signal<int> r_ring_rsp_fsm; // ring response packet FSM |
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109 | sc_signal<int> r_vci_cmd_fsm; // vci command packet FSM |
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110 | sc_signal<int> r_vci_rsp_fsm; // vci response packet FSM |
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111 | |
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112 | sc_signal<sc_uint<vci_param::S> > r_srcid; |
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113 | sc_signal<sc_uint<2> > r_cmd; |
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114 | sc_signal<sc_uint<vci_param::T> > r_trdid; |
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115 | sc_signal<sc_uint<vci_param::P> > r_pktid; |
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116 | sc_signal<sc_uint<vci_param::K> > r_plen; |
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117 | sc_signal<sc_uint<1> > r_contig; |
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118 | sc_signal<sc_uint<1> > r_const; |
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119 | sc_signal<sc_uint<vci_param::N> > r_addr; |
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120 | |
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121 | // internal fifos |
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122 | GenericFifo<uint64_t > m_cmd_fifo; // fifo for the local command paquet |
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123 | GenericFifo<uint64_t > m_rsp_fifo; // fifo for the local response paquet |
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124 | |
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125 | // routing table |
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126 | soclib::common::AddressDecodingTable<vci_addr_t, int> m_rt; |
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127 | // locality table |
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128 | soclib::common::AddressDecodingTable<vci_addr_t, bool> m_lt; |
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129 | |
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130 | bool trace(int sc_time_stamp) |
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131 | { |
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132 | int time_stamp=0; |
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133 | char *ctime_stamp= getenv("FROM_CYCLE"); |
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134 | |
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135 | if (ctime_stamp) time_stamp=atoi(ctime_stamp); |
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136 | |
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137 | return sc_time_stamp >= time_stamp; |
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138 | |
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139 | } |
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140 | |
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141 | public : |
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142 | |
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143 | VciRingTarget( |
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144 | const char *name, |
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145 | bool alloc_target, |
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146 | const int &wrapper_fifo_depth, |
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147 | const soclib::common::MappingTable &mt, |
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148 | const soclib::common::IntTab &ringid, |
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149 | const int &tgtid) |
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150 | : m_name(name), |
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151 | m_alloc_target(alloc_target), |
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152 | m_cmd_fifo("m_cmd_fifo", wrapper_fifo_depth), |
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153 | m_rsp_fifo("m_rsp_fifo", wrapper_fifo_depth), |
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154 | m_rt(mt.getRoutingTable<typename vci_param::fast_addr_t>(ringid)), |
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155 | m_lt(mt.getLocalityTable<typename vci_param::fast_addr_t>(ringid)), |
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156 | m_tgtid(tgtid), |
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157 | r_ring_cmd_fsm("r_ring_cmd_fsm"), |
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158 | r_ring_rsp_fsm("r_ring_rsp_fsm"), |
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159 | r_vci_cmd_fsm("r_vci_cmd_fsm"), |
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160 | r_vci_rsp_fsm("r_vci_rsp_fsm"), |
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161 | r_srcid("r_srcid"), |
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162 | r_cmd("r_cmd"), |
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163 | r_trdid("r_trdid"), |
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164 | r_pktid("r_pktid"), |
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165 | r_plen("r_plen"), |
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166 | r_contig("r_contig"), |
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167 | r_const("r_const"), |
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168 | r_addr("r_addr") |
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169 | |
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170 | {} // end constructor |
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171 | |
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172 | void reset() |
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173 | { |
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174 | if(m_alloc_target) |
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175 | r_ring_rsp_fsm = DEFAULT; |
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176 | else |
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177 | r_ring_rsp_fsm = RSP_IDLE; |
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178 | |
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179 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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180 | r_vci_rsp_fsm = RSP_HEADER; |
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181 | r_ring_cmd_fsm = CMD_IDLE; |
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182 | m_cmd_fifo.init(); |
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183 | m_rsp_fifo.init(); |
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184 | } |
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185 | void transition(const vci_initiator_t &p_vci, const ring_signal_t p_ring_in) |
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186 | { |
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187 | |
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188 | bool cmd_fifo_get = false; |
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189 | bool cmd_fifo_put = false; |
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190 | uint64_t cmd_fifo_data = 0; |
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191 | |
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192 | bool rsp_fifo_get = false; |
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193 | bool rsp_fifo_put = false; |
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194 | uint64_t rsp_fifo_data = 0; |
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195 | |
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196 | #ifdef T_DEBUG_FSM |
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197 | if( trace(sc_time_stamp())) |
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198 | std::cout << sc_time_stamp() << " - " << m_name |
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199 | << " - vci cmd = " << vci_cmd_fsm_state_str_t[r_vci_cmd_fsm] |
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200 | << " - vci rsp = " << vci_rsp_fsm_state_str_t[r_vci_rsp_fsm] |
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201 | << " - ring cmd = " << ring_cmd_fsm_state_str_t[r_ring_cmd_fsm] |
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202 | << " - ring rsp = " << ring_rsp_fsm_state_str_t[r_ring_rsp_fsm] |
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203 | << std::endl; |
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204 | #endif |
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205 | |
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206 | //////////// VCI CMD FSM ///////////////////////// |
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207 | switch ( r_vci_cmd_fsm ) |
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208 | { |
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209 | |
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210 | case CMD_FIRST_HEADER: |
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211 | if (m_cmd_fifo.rok() == true) |
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212 | { |
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213 | #ifdef T_DEBUG |
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214 | if( trace(sc_time_stamp())) |
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215 | std::cout << sc_time_stamp() << " -- " << m_name |
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216 | << " -- r_vci_cmd_fsm -- CMD_FIRST_HEADER " |
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217 | << " -- fifo_rok : " << m_cmd_fifo.rok() |
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218 | << " -- fifo_data : " << std::hex << m_cmd_fifo.read() |
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219 | << std::endl; |
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220 | #endif |
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221 | |
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222 | cmd_fifo_get = true; |
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223 | |
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224 | if (m_cmd_fifo.read() & 0x1 == 0x1) // broadcast |
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225 | { |
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226 | r_addr = (sc_uint<vci_param::N>) 0x3; |
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227 | r_srcid = (sc_uint<vci_param::S>) (m_cmd_fifo.read() >> 20); |
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228 | r_cmd = (sc_uint<2>) 0x2; |
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229 | r_contig = (sc_uint<1>) 0x1; |
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230 | r_const = (sc_uint<1>) 0x0; |
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231 | r_plen = (sc_uint<vci_param::K>) 0x04; |
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232 | r_pktid = (sc_uint<vci_param::P>) 0x0; |
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233 | r_trdid = (sc_uint<vci_param::T>) ((m_cmd_fifo.read() >> 16) & 0xF); |
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234 | |
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235 | r_vci_cmd_fsm = WDATA; |
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236 | } |
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237 | else |
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238 | { |
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239 | r_addr = (sc_uint<vci_param::N>) (m_cmd_fifo.read() << 1); |
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240 | r_vci_cmd_fsm = CMD_SECOND_HEADER; |
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241 | } |
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242 | |
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243 | |
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244 | } // end if rok |
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245 | break; |
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246 | |
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247 | case CMD_SECOND_HEADER: |
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248 | if ( m_cmd_fifo.rok() ) |
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249 | { |
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250 | |
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251 | #ifdef T_DEBUG |
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252 | if( trace(sc_time_stamp())) |
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253 | std::cout << sc_time_stamp() << " -- " << m_name |
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254 | << " -- r_vci_cmd_fsm -- CMD_SECOND_HEADER " |
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255 | << " -- r_addr : " << std::hex << r_addr |
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256 | << " -- fifo_rok : " << m_cmd_fifo.rok() |
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257 | << " -- fifo_data : " << m_cmd_fifo.read() |
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258 | << " -- vci cmdack : " << p_vci.cmdack.read() |
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259 | << std::endl; |
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260 | #endif |
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261 | if(((int) (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) // read command |
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262 | { |
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263 | |
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264 | if (p_vci.cmdack.read()) |
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265 | { |
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266 | |
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267 | cmd_fifo_get = true; |
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268 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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269 | } |
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270 | } |
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271 | else // write command |
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272 | { |
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273 | |
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274 | cmd_fifo_get = true; |
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275 | r_srcid = (sc_uint<vci_param::S>) (m_cmd_fifo.read() >> 20) ; |
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276 | r_cmd = (sc_uint<2>) ((m_cmd_fifo.read() >> 18) & 0x3); |
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277 | r_contig = (sc_uint<1>) ((m_cmd_fifo.read() >> 17) & 0x1); |
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278 | r_const = (sc_uint<1>) ((m_cmd_fifo.read() >> 16) & 0x1); |
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279 | r_plen = (sc_uint<vci_param::K>) ((m_cmd_fifo.read() >> 8) & 0xFF); |
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280 | r_pktid = (sc_uint<vci_param::P>) ((m_cmd_fifo.read() >> 4) & 0xF); |
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281 | r_trdid = (sc_uint<vci_param::T>) (m_cmd_fifo.read() & 0xF); |
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282 | r_vci_cmd_fsm = WDATA; |
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283 | } |
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284 | } |
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285 | break; |
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286 | |
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287 | case WDATA: |
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288 | #ifdef T_DEBUG |
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289 | if( trace(sc_time_stamp())) |
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290 | std::cout << sc_time_stamp() << " -- " << m_name |
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291 | << " -- r_vci_cmd_fsm -- WDATA " |
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292 | << " -- vci_cmdack : " << p_vci.cmdack.read() |
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293 | << " -- fifo_rok : " << m_cmd_fifo.rok() |
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294 | << " -- fifo_data : " << std::hex << m_cmd_fifo.read() |
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295 | << " -- r_plen : " << r_plen.read() |
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296 | << std::endl; |
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297 | #endif |
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298 | if ( p_vci.cmdack.read() && m_cmd_fifo.rok() ) |
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299 | { |
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300 | |
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301 | cmd_fifo_get = true; |
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302 | sc_uint<1> contig = r_contig; |
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303 | if(contig == 0x1) |
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304 | r_addr = r_addr.read() + vci_param::B ; |
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305 | if(( (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) |
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306 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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307 | else |
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308 | r_vci_cmd_fsm = WDATA; |
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309 | } // end if cmdack |
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310 | break; |
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311 | |
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312 | } // end switch r_vci_cmd_fsm |
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313 | |
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314 | /////////// VCI RSP FSM ///////////////////////// |
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315 | switch ( r_vci_rsp_fsm ) |
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316 | { |
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317 | case RSP_HEADER: |
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318 | #ifdef T_DEBUG |
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319 | if( trace(sc_time_stamp())) |
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320 | std::cout << sc_time_stamp() << " -- " << m_name |
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321 | << " -- r_vci_rsp_fsm -- RSP_HEADER " |
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322 | << " -- fifo_rsp_wok : " << m_rsp_fifo.wok() |
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323 | << " -- vci_rspval : " << p_vci.rspval.read() |
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324 | << " -- rsrcid : " << std::hex << p_vci.rsrcid.read() |
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325 | << " -- rerror : " << p_vci.rerror.read() |
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326 | << std::endl; |
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327 | #endif |
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328 | if((p_vci.rspval.read() == true) && (m_rsp_fifo.wok())) |
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329 | { |
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330 | |
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331 | rsp_fifo_data = (((uint64_t) p_vci.rsrcid.read() & 0x3FFF) << 12) | |
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332 | (((uint64_t) p_vci.rerror.read() & 0x1) << 8) | |
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333 | (((uint64_t) p_vci.rpktid.read() & 0xF) << 4) | |
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334 | ((uint64_t) p_vci.rtrdid.read() & 0xF); |
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335 | rsp_fifo_put = true; |
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336 | r_vci_rsp_fsm = DATA; |
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337 | } |
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338 | break; |
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339 | |
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340 | case DATA: |
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341 | #ifdef T_DEBUG |
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342 | if( trace(sc_time_stamp())) |
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343 | std::cout << sc_time_stamp() << " -- " << m_name |
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344 | << " -- r_vci_rsp_fsm -- RSP_DATA " |
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345 | << " -- fifo_rsp_wok : " << m_rsp_fifo.wok() |
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346 | << " -- vci_rspval : " << p_vci.rspval.read() |
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347 | << " -- rdata : " << std::hex << p_vci.rdata.read() |
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348 | << " -- reop : " << p_vci.reop.read() |
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349 | << std::endl; |
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350 | #endif |
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351 | if((p_vci.rspval.read() == true) && (m_rsp_fifo.wok())) |
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352 | { |
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353 | |
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354 | |
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355 | rsp_fifo_put = true; |
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356 | rsp_fifo_data = (uint64_t) p_vci.rdata.read(); |
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357 | |
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358 | if (p_vci.reop.read()) |
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359 | { |
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360 | rsp_fifo_data = rsp_fifo_data | (((uint64_t) 0x1) << (ring_rsp_data_size-1)) ; |
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361 | r_vci_rsp_fsm = RSP_HEADER; |
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362 | } |
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363 | } |
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364 | break; |
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365 | |
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366 | } // end switch r_vci_rsp_fsm |
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367 | |
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368 | //////////// RING RSP FSM (distributed) ///////////////////////// |
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369 | |
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370 | switch( r_ring_rsp_fsm ) |
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371 | { |
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372 | case RSP_IDLE: |
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373 | #ifdef TR_DEBUG |
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374 | if( trace(sc_time_stamp())) |
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375 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : RSP_IDLE" |
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376 | << " -- fifo rok : " << m_rsp_fifo.rok() |
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377 | << " -- in rok : " << p_ring_in.rsp_w |
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378 | << " -- in wok : " << p_ring_in.rsp_r |
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379 | << " -- in rsp grant : " << p_ring_in.rsp_grant |
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380 | << " -- in rsp data : " << p_ring_in.rsp_data |
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381 | << std::endl; |
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382 | #endif |
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383 | if ( p_ring_in.rsp_grant && m_rsp_fifo.rok() ) |
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384 | |
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385 | r_ring_rsp_fsm = KEEP; |
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386 | |
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387 | break; |
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388 | |
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389 | case DEFAULT: |
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390 | |
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391 | if ( m_rsp_fifo.rok()) |
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392 | { |
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393 | #ifdef TR_DEBUG |
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394 | if( trace(sc_time_stamp())) |
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395 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : DEFAULT " |
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396 | << " -- fifo data : " << std::hex << m_rsp_fifo.read() |
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397 | << std::endl; |
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398 | #endif |
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399 | rsp_fifo_get = p_ring_in.rsp_r; //true; |
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400 | r_ring_rsp_fsm = KEEP; |
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401 | } |
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402 | else if ( !p_ring_in.rsp_grant ) |
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403 | r_ring_rsp_fsm = RSP_IDLE; |
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404 | break; |
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405 | |
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406 | case KEEP: |
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407 | |
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408 | if(m_rsp_fifo.rok() && p_ring_in.rsp_r) |
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409 | { |
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410 | #ifdef TR_DEBUG |
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411 | if( trace(sc_time_stamp())) |
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412 | std::cout << sc_time_stamp() << " -- " << m_name << " -- ring_rsp_fsm : KEEP " |
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413 | << " -- fifo rok : " << m_rsp_fifo.rok() |
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414 | << " -- in wok : " << p_ring_in.rsp_r |
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415 | << " -- fifo data : " << std::hex << m_rsp_fifo.read() |
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416 | << std::endl; |
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417 | #endif |
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418 | rsp_fifo_get = true; |
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419 | if ((int) ((m_rsp_fifo.read() >> 32 ) & 0x1) == 1) |
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420 | { |
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421 | if ( p_ring_in.rsp_grant ) |
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422 | r_ring_rsp_fsm = DEFAULT; |
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423 | else |
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424 | r_ring_rsp_fsm = RSP_IDLE; |
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425 | } |
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426 | } |
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427 | break; |
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428 | |
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429 | } // end switch ring cmd fsm |
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430 | |
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431 | /////////// RING CMD FSM //////////////////////// |
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432 | switch( r_ring_cmd_fsm ) |
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433 | { |
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434 | |
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435 | case CMD_IDLE: |
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436 | { // for variable scope |
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437 | |
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438 | vci_addr_t rtgtid = (vci_addr_t) ((p_ring_in.cmd_data >> 1) << 2); |
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439 | bool islocal = m_lt[rtgtid] && (m_rt[rtgtid] == (vci_addr_t) m_tgtid); |
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440 | bool brdcst = (p_ring_in.cmd_data & 0x1) == 0X1 ; |
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441 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
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442 | |
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443 | #ifdef TR_DEBUG |
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444 | if( trace(sc_time_stamp())) |
---|
445 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
446 | << " - ring_cmd_fsm -- CMD_IDLE " |
---|
447 | << " - in rok : " << p_ring_in.cmd_w |
---|
448 | << " - isloc : " << islocal |
---|
449 | << " - addr : " << std::hex << rtgtid |
---|
450 | << " - brdcst : " << brdcst |
---|
451 | << " - in wok : " << p_ring_in.cmd_r |
---|
452 | << " - fifo wok : " << m_cmd_fifo.wok() |
---|
453 | << " - eop : " << eop |
---|
454 | << std::endl; |
---|
455 | #endif |
---|
456 | if(p_ring_in.cmd_w && !eop && brdcst && !m_cmd_fifo.wok()) { |
---|
457 | r_ring_cmd_fsm = BROADCAST_0; |
---|
458 | } |
---|
459 | |
---|
460 | if(p_ring_in.cmd_w && !eop && brdcst && m_cmd_fifo.wok()) { |
---|
461 | r_ring_cmd_fsm = BROADCAST_1; |
---|
462 | cmd_fifo_put = true; |
---|
463 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
464 | |
---|
465 | } |
---|
466 | |
---|
467 | if (p_ring_in.cmd_w && !eop && !brdcst && islocal) { |
---|
468 | r_ring_cmd_fsm = LOCAL; |
---|
469 | cmd_fifo_put = m_cmd_fifo.wok(); |
---|
470 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
471 | |
---|
472 | } |
---|
473 | |
---|
474 | if (p_ring_in.cmd_w && !eop && !brdcst && !islocal) { |
---|
475 | r_ring_cmd_fsm = RING; |
---|
476 | } |
---|
477 | |
---|
478 | if (!p_ring_in.cmd_w || eop) { |
---|
479 | r_ring_cmd_fsm = CMD_IDLE; |
---|
480 | } |
---|
481 | |
---|
482 | } |
---|
483 | |
---|
484 | break; |
---|
485 | |
---|
486 | case BROADCAST_0: |
---|
487 | |
---|
488 | #ifdef TR_DEBUG |
---|
489 | if( trace(sc_time_stamp())) |
---|
490 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
491 | << " -- ring_cmd_fsm -- BROADCAST_0 " |
---|
492 | << " -- ringin cmd rok : " << p_ring_in.cmd_w |
---|
493 | << " -- ringin cmd wok : " << p_ring_in.cmd_r |
---|
494 | << " -- ringin data : " << std::hex << p_ring_in.cmd_data |
---|
495 | << " -- fifo cmd wok : " << m_cmd_fifo.wok() |
---|
496 | << std::endl; |
---|
497 | #endif |
---|
498 | if ( m_cmd_fifo.wok() ) |
---|
499 | { |
---|
500 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
501 | r_ring_cmd_fsm = BROADCAST_1; |
---|
502 | |
---|
503 | } else { |
---|
504 | r_ring_cmd_fsm = BROADCAST_0; |
---|
505 | } |
---|
506 | |
---|
507 | break; |
---|
508 | |
---|
509 | case BROADCAST_1: |
---|
510 | { |
---|
511 | #ifdef TR_DEBUG |
---|
512 | if( trace(sc_time_stamp())) |
---|
513 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
514 | << " -- ring_cmd_fsm -- BROADCAST_1 " |
---|
515 | << " -- ringin cmd rok : " << p_ring_in.cmd_w |
---|
516 | << " -- ringin cmd wok : " << p_ring_in.cmd_r |
---|
517 | << " -- ringin data : " << std::hex << p_ring_in.cmd_data |
---|
518 | << " -- fifo cmd wok : " << m_cmd_fifo.wok() |
---|
519 | << std::endl; |
---|
520 | #endif |
---|
521 | |
---|
522 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
523 | |
---|
524 | if ( p_ring_in.cmd_w && m_cmd_fifo.wok() && eop ) |
---|
525 | { |
---|
526 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
527 | cmd_fifo_put = 1; |
---|
528 | r_ring_cmd_fsm = CMD_IDLE; |
---|
529 | |
---|
530 | } |
---|
531 | else { |
---|
532 | r_ring_cmd_fsm = BROADCAST_1; |
---|
533 | } |
---|
534 | |
---|
535 | } |
---|
536 | break; |
---|
537 | |
---|
538 | case LOCAL: |
---|
539 | { |
---|
540 | |
---|
541 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
542 | #ifdef TR_DEBUG |
---|
543 | if( trace(sc_time_stamp())) |
---|
544 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
545 | << " -- ring_cmd_fsm -- LOCAL " |
---|
546 | << " -- in cmd rok : " << p_ring_in.cmd_w |
---|
547 | << " -- in cmd wok : " << p_ring_in.cmd_r |
---|
548 | << " -- in data : " << std::hex << p_ring_in.cmd_data |
---|
549 | << " -- fifo wok : " << m_cmd_fifo.wok() |
---|
550 | << " -- eop : " << eop |
---|
551 | << std::endl; |
---|
552 | #endif |
---|
553 | |
---|
554 | if ( p_ring_in.cmd_w && m_cmd_fifo.wok() && eop ) |
---|
555 | { |
---|
556 | |
---|
557 | cmd_fifo_put = true; |
---|
558 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
559 | r_ring_cmd_fsm = CMD_IDLE; |
---|
560 | |
---|
561 | } |
---|
562 | |
---|
563 | if ( !p_ring_in.cmd_w || !m_cmd_fifo.wok() || !eop ) |
---|
564 | { |
---|
565 | |
---|
566 | cmd_fifo_put = p_ring_in.cmd_w && m_cmd_fifo.wok(); |
---|
567 | cmd_fifo_data = p_ring_in.cmd_data; |
---|
568 | r_ring_cmd_fsm = LOCAL; |
---|
569 | |
---|
570 | } |
---|
571 | } |
---|
572 | break; |
---|
573 | |
---|
574 | case RING: |
---|
575 | { |
---|
576 | |
---|
577 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
578 | |
---|
579 | #ifdef TR_DEBUG |
---|
580 | if( trace(sc_time_stamp())) |
---|
581 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
582 | << " -- ring_cmd_fsm -- RING " |
---|
583 | << " -- in cmd rok : " << p_ring_in.cmd_w |
---|
584 | << " -- in data : " << std::hex << p_ring_in.cmd_data |
---|
585 | << " -- in wok : " << p_ring_in.cmd_r |
---|
586 | << " -- eop : " << eop |
---|
587 | << std::endl; |
---|
588 | #endif |
---|
589 | if ( p_ring_in.cmd_w && eop ) { |
---|
590 | r_ring_cmd_fsm = CMD_IDLE; |
---|
591 | } |
---|
592 | else { |
---|
593 | r_ring_cmd_fsm = RING; |
---|
594 | } |
---|
595 | } |
---|
596 | break; |
---|
597 | |
---|
598 | } // end switch cmd fsm |
---|
599 | |
---|
600 | //////////////////////// |
---|
601 | // fifos update // |
---|
602 | //////////////////////// |
---|
603 | |
---|
604 | // local cmd fifo update |
---|
605 | if ( cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.put_and_get(cmd_fifo_data); |
---|
606 | else if ( cmd_fifo_put && !cmd_fifo_get ) m_cmd_fifo.simple_put(cmd_fifo_data); |
---|
607 | else if ( !cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.simple_get(); |
---|
608 | // local rsp fifo update |
---|
609 | if ( rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.put_and_get(rsp_fifo_data); |
---|
610 | else if ( rsp_fifo_put && !rsp_fifo_get ) m_rsp_fifo.simple_put(rsp_fifo_data); |
---|
611 | else if ( !rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.simple_get(); |
---|
612 | |
---|
613 | } // end Transition() |
---|
614 | |
---|
615 | /////////////////////////////////////////////////////////////////// |
---|
616 | void genMoore(vci_initiator_t &p_vci) |
---|
617 | /////////////////////////////////////////////////////////////////// |
---|
618 | { |
---|
619 | if( r_vci_rsp_fsm == RSP_HEADER ) |
---|
620 | p_vci.rspack = false; |
---|
621 | else |
---|
622 | p_vci.rspack = m_rsp_fifo.wok(); |
---|
623 | |
---|
624 | switch ( r_vci_cmd_fsm ) |
---|
625 | { |
---|
626 | case CMD_FIRST_HEADER: |
---|
627 | p_vci.cmdval = false; |
---|
628 | |
---|
629 | break; |
---|
630 | |
---|
631 | case CMD_SECOND_HEADER: |
---|
632 | if(((int) (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) // eop |
---|
633 | { |
---|
634 | p_vci.cmdval = m_cmd_fifo.rok(); |
---|
635 | p_vci.address = (sc_uint<vci_param::N>) r_addr.read(); |
---|
636 | p_vci.cmd = (sc_uint<2>) ((m_cmd_fifo.read() >> 18) & 0x3); |
---|
637 | p_vci.be = 0xF; |
---|
638 | p_vci.wdata = 0; |
---|
639 | p_vci.pktid = (sc_uint<vci_param::P>) ((m_cmd_fifo.read() >> 4) & 0xF); |
---|
640 | p_vci.srcid = (sc_uint<vci_param::S>) (m_cmd_fifo.read() >> 20) ; |
---|
641 | p_vci.trdid = (sc_uint<vci_param::T>) (m_cmd_fifo.read() & 0xF); |
---|
642 | p_vci.plen = (sc_uint<vci_param::K>) ((m_cmd_fifo.read() >> 8) & 0xFF); |
---|
643 | p_vci.eop = true; |
---|
644 | sc_uint<1> cons = (sc_uint<1>) ((m_cmd_fifo.read() >> 16) & 0x1) ; |
---|
645 | if (cons == 0x1) |
---|
646 | p_vci.cons = true; |
---|
647 | else |
---|
648 | p_vci.cons = false; |
---|
649 | sc_uint<1> contig = (sc_uint<1>) ((m_cmd_fifo.read() >> 17) & 0x1); |
---|
650 | if(contig == 0x1) |
---|
651 | p_vci.contig = true; |
---|
652 | else |
---|
653 | p_vci.contig = false; |
---|
654 | } |
---|
655 | else |
---|
656 | p_vci.cmdval = false; |
---|
657 | break; |
---|
658 | |
---|
659 | case WDATA: |
---|
660 | { // for variable scope |
---|
661 | |
---|
662 | p_vci.cmdval = m_cmd_fifo.rok(); |
---|
663 | p_vci.address = (sc_uint<vci_param::N>) r_addr.read(); |
---|
664 | p_vci.be = (sc_uint<vci_param::B>)((m_cmd_fifo.read() >> 32) & 0xF); |
---|
665 | p_vci.cmd = r_cmd; |
---|
666 | p_vci.wdata = (sc_uint<32>)(m_cmd_fifo.read()); |
---|
667 | p_vci.pktid = r_pktid; |
---|
668 | p_vci.srcid = r_srcid; |
---|
669 | p_vci.trdid = r_trdid; |
---|
670 | p_vci.plen = r_plen; |
---|
671 | sc_uint<1> cons = r_const; |
---|
672 | if (cons == 0x1) |
---|
673 | p_vci.cons = true; |
---|
674 | else |
---|
675 | p_vci.cons = false; |
---|
676 | sc_uint<1> contig = r_contig; |
---|
677 | if(contig == 0x1) |
---|
678 | p_vci.contig = true; |
---|
679 | else |
---|
680 | p_vci.contig = false; |
---|
681 | if(((int) (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) |
---|
682 | p_vci.eop = true; |
---|
683 | else |
---|
684 | p_vci.eop = false; |
---|
685 | } |
---|
686 | break; |
---|
687 | |
---|
688 | } // end switch fsm |
---|
689 | } // end genMoore |
---|
690 | |
---|
691 | /////////////////////////////////////////////////////////////////// |
---|
692 | void update_ring_signals(ring_signal_t p_ring_in, ring_signal_t &p_ring_out) |
---|
693 | /////////////////////////////////////////////////////////////////// |
---|
694 | { |
---|
695 | |
---|
696 | switch( r_ring_rsp_fsm ) |
---|
697 | { |
---|
698 | case RSP_IDLE: |
---|
699 | p_ring_out.rsp_grant = p_ring_in.rsp_grant && !m_rsp_fifo.rok(); |
---|
700 | |
---|
701 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
---|
702 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
703 | |
---|
704 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
705 | break; |
---|
706 | |
---|
707 | case DEFAULT: |
---|
708 | p_ring_out.rsp_grant = !( m_rsp_fifo.rok()); |
---|
709 | |
---|
710 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
---|
711 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
---|
712 | |
---|
713 | p_ring_out.rsp_r = 1; |
---|
714 | break; |
---|
715 | |
---|
716 | case KEEP: |
---|
717 | int rsp_fifo_eop = (int) ((m_rsp_fifo.read() >> 32) & 0x1); |
---|
718 | p_ring_out.rsp_grant = m_rsp_fifo.rok() && p_ring_in.rsp_r && (rsp_fifo_eop == 1); |
---|
719 | |
---|
720 | p_ring_out.rsp_w = m_rsp_fifo.rok(); |
---|
721 | p_ring_out.rsp_data = m_rsp_fifo.read(); |
---|
722 | |
---|
723 | p_ring_out.rsp_r = 1; |
---|
724 | |
---|
725 | break; |
---|
726 | |
---|
727 | } // end switch |
---|
728 | |
---|
729 | p_ring_out.cmd_w = p_ring_in.cmd_w; |
---|
730 | p_ring_out.cmd_data = p_ring_in.cmd_data; |
---|
731 | |
---|
732 | p_ring_out.cmd_grant = p_ring_in.cmd_grant; |
---|
733 | |
---|
734 | switch( r_ring_cmd_fsm ) |
---|
735 | { |
---|
736 | case CMD_IDLE: |
---|
737 | { |
---|
738 | vci_addr_t rtgtid = (vci_addr_t) ((p_ring_in.cmd_data >> 1) << 2); |
---|
739 | bool islocal = m_lt[rtgtid] && (m_rt[rtgtid] == (vci_addr_t) m_tgtid); |
---|
740 | bool brdcst = (p_ring_in.cmd_data & 0x1) == 0X1 ; |
---|
741 | bool eop = ( (int) ((p_ring_in.cmd_data >> (ring_cmd_data_size - 1) ) & 0x1) == 1); |
---|
742 | |
---|
743 | if(p_ring_in.cmd_w && !eop && brdcst && !m_cmd_fifo.wok()) { |
---|
744 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
---|
745 | } |
---|
746 | |
---|
747 | if(p_ring_in.cmd_w && !eop && brdcst && m_cmd_fifo.wok()) { |
---|
748 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
---|
749 | |
---|
750 | } |
---|
751 | |
---|
752 | if (p_ring_in.cmd_w && !eop && !brdcst && islocal) { |
---|
753 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
754 | |
---|
755 | } |
---|
756 | |
---|
757 | if (p_ring_in.cmd_w && !eop && !brdcst && !islocal) { |
---|
758 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
759 | } |
---|
760 | |
---|
761 | if (!p_ring_in.cmd_w || eop) { |
---|
762 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
763 | } |
---|
764 | |
---|
765 | |
---|
766 | } |
---|
767 | break; |
---|
768 | |
---|
769 | case BROADCAST_0: |
---|
770 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
---|
771 | break; |
---|
772 | |
---|
773 | case BROADCAST_1: |
---|
774 | p_ring_out.cmd_r = m_cmd_fifo.wok() && p_ring_in.cmd_r; |
---|
775 | break; |
---|
776 | |
---|
777 | case LOCAL: |
---|
778 | |
---|
779 | p_ring_out.cmd_r = m_cmd_fifo.wok(); |
---|
780 | break; |
---|
781 | |
---|
782 | case RING: |
---|
783 | |
---|
784 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
785 | break; |
---|
786 | } // end switch |
---|
787 | |
---|
788 | } // end update_ring_signals |
---|
789 | |
---|
790 | }; |
---|
791 | |
---|
792 | }} // end namespace |
---|
793 | #endif // SOCLIB_CABA_VCI_RING_TARGET_H |
---|
794 | |
---|