1 | /* -*- c++ -*- |
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2 | * File : vci_io_bridge.h |
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3 | * Copyright (c) UPMC, Lip6, SoC |
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4 | * Date : 16/04/2012 |
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5 | * |
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6 | * SOCLIB_LGPL_HEADER_BEGIN |
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7 | * |
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8 | * This file is part of SoCLib, GNU LGPLv2.1. |
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9 | * |
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10 | * SoCLib is free software; you can redistribute it and/or modify it |
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11 | * under the terms of the GNU Lesser General Public License as published |
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12 | * by the Free Software Foundation; version 2.1 of the License. |
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13 | * |
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14 | * SoCLib is distributed in the hope that it will be useful, but |
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15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 | * Lesser General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU Lesser General Public |
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20 | * License along with SoCLib; if not, write to the Free Software |
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21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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22 | * 02110-1301 USA |
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23 | * |
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24 | * SOCLIB_LGPL_HEADER_END |
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25 | */ |
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26 | |
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27 | //////Utilisation Considerations//////////////////////////////////////////////// |
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28 | // |
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29 | // - IOMMU PTPR pointer must fit in 32 bits (with a classical 2 level 4K page |
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30 | // table in a 32 bit virtual space, it means a maximum of 45 bits in physical |
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31 | // address) |
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32 | // |
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33 | // - Physical address must fit in two 32 bit words |
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34 | // |
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35 | // - Maximal number of flits in a write transaction cannot be bigger than (n° of |
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36 | // words in a chache line)/2 |
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37 | // |
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38 | // - Page Tables must have the format used in TSAR (compatible with component |
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39 | // generic_tlb) |
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40 | // |
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41 | // - IO's segment size must be the same in both networks |
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42 | // |
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43 | // - Write operations on IOMMU configuration registers (PTPR, ACTIVE) can only |
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44 | // be done when DMA_TLB FSM is IDLE. It should, preferably, be done before |
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45 | // starting any transfers. Pseudo register INVAL may be modified any time. |
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46 | // |
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47 | // - Similarly, write operations on the interruptions registers can only be done |
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48 | // when the dedicated FSM is IDLE. |
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49 | //////////////////////////////////////////////////////////////////////////////// |
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50 | |
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51 | |
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52 | ///////TODO List/////////////////////////////////////////////////////////////// |
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53 | // |
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54 | // Tableau de correspondance d'adresses physique - IO (pour CONFIG_CMD) |
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55 | // |
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56 | // Conversion 32 (entree) Ã 64 (sortie) bits (champ data). Dans les deux senses (CMD et RSP) |
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57 | // |
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58 | // Ne pas garder tous les champs WRITE CMD dans les FIFO a chaque flit |
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59 | // (seulement 'data' et 'be') |
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60 | /////////////////////////////////////////////////////////////////////////////// |
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61 | |
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62 | #ifndef SOCLIB_CABA_VCI_IO_BRIDGE_H |
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63 | #define SOCLIB_CABA_VCI_IO_BRIDGE_H |
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64 | |
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65 | #include <inttypes.h> |
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66 | #include <systemc> |
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67 | #include "caba_base_module.h" |
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68 | #include "generic_fifo.h" |
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69 | #include "generic_tlb.h" |
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70 | #include "mapping_table.h" |
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71 | #include "address_decoding_table.h" |
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72 | #include "static_assert.h" |
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73 | #include "transaction_tab_io.h" |
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74 | #include "vci_initiator.h" |
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75 | #include "vci_target.h" |
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76 | |
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77 | namespace soclib { |
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78 | namespace caba { |
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79 | |
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80 | using namespace soclib::common; |
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81 | |
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82 | //////////////////////////////////////////// |
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83 | template<typename vci_param_d,typename vci_param_x, typename vci_param_io > |
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84 | class VciIoBridge |
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85 | //////////////////////////////////////////// |
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86 | : public soclib::caba::BaseModule |
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87 | { |
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88 | typedef uint32_t tag_t; |
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89 | typedef uint32_t type_t; |
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90 | |
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91 | // Address field may change between direct, extenal and IO network |
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92 | typedef typename vci_param_d::addr_t paddr_t; |
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93 | typedef typename vci_param_x::addr_t paddr_t_x; // Just the cache line, for example |
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94 | typedef typename vci_param_io::addr_t vaddr_t; |
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95 | |
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96 | // Data field may change for external network |
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97 | typedef typename vci_param_x::data_t vci_data_t_x; |
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98 | // Srcid field may change for external network |
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99 | typedef typename vci_param_x::srcid_t vci_srcid_t_x; |
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100 | |
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101 | // Other fields must coincide |
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102 | typedef typename vci_param_d::srcid_t vci_srcid_t; |
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103 | typedef typename vci_param_d::data_t vci_data_t; |
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104 | typedef typename vci_param_d::be_t vci_be_t; |
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105 | typedef typename vci_param_d::trdid_t vci_trdid_t; |
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106 | typedef typename vci_param_d::pktid_t vci_pktid_t; |
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107 | typedef typename vci_param_d::plen_t vci_plen_t; |
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108 | typedef typename vci_param_d::cmd_t vci_cmd_t; |
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109 | typedef typename vci_param_d::contig_t vci_contig_t; |
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110 | typedef typename vci_param_d::eop_t vci_eop_t; |
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111 | typedef typename vci_param_d::const_t vci_cons_t; |
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112 | typedef typename vci_param_d::wrap_t vci_wrap_t; |
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113 | typedef typename vci_param_d::clen_t vci_clen_t; |
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114 | typedef typename vci_param_d::cfixed_t vci_cfixed_t; |
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115 | |
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116 | typedef typename vci_param_d::rerror_t vci_rerror_t; |
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117 | |
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118 | enum { |
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119 | CACHE_LINE_MASK = 0xFFFFFFFFC0, |
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120 | PPN1_MASK = 0x0007FFFF, |
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121 | PPN2_MASK = 0x0FFFFFFF, |
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122 | K_PAGE_OFFSET_MASK = 0x00000FFF, |
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123 | M_PAGE_OFFSET_MASK = 0x001FFFFF, |
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124 | PTE2_LINE_OFFSET = 0x00007000, // bits 12,13,14. |
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125 | PTE1_LINE_OFFSET = 0x01E00000, // bits 21,22,23,24 |
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126 | }; |
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127 | |
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128 | //DMA (from Peripherals to XRAM) |
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129 | enum dma_cmd_fsm_state { |
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130 | DMA_CMD_IDLE, |
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131 | DMA_CMD_TRT_LOCK, |
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132 | DMA_CMD_TRT_WAIT, |
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133 | DMA_CMD_TRT_SET, |
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134 | DMA_CMD_FIFO_PUT, |
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135 | DMA_CMD_FIFO_MISS_PUT, |
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136 | DMA_CMD_TLB_MISS_WAIT, |
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137 | DMA_CMD_TLB_MISS_STORE, |
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138 | DMA_CMD_ERROR, |
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139 | }; |
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140 | |
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141 | enum dma_rsp_fsm_state { |
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142 | DMA_RSP_IDLE, |
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143 | DMA_RSP_TRT_LOCK, |
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144 | DMA_RSP_FIFO_PUT, |
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145 | DMA_RSP_FIFO_ERROR_PUT, |
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146 | }; |
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147 | |
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148 | // Allocates the transaction_tab_dma |
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149 | enum alloc_trt_dma_fsm_state { |
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150 | ALLOC_TRT_DMA_CMD, |
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151 | ALLOC_TRT_DMA_RSP |
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152 | }; |
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153 | |
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154 | |
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155 | enum dma_tlb_fsm_state { |
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156 | DMA_TLB_IDLE, |
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157 | DMA_TLB_MISS, |
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158 | DMA_TLB_PTE1_GET, |
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159 | DMA_TLB_PTE1_SELECT, |
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160 | DMA_TLB_PTE1_UPDT, |
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161 | DMA_TLB_PTE2_GET, |
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162 | DMA_TLB_PTE2_SELECT, |
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163 | DMA_TLB_PTE2_UPDT, |
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164 | DMA_TLB_WAIT_TRANSACTION, |
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165 | DMA_TLB_RETURN, |
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166 | // Treatment of CONFIG FSM request |
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167 | DMA_TLB_INVAL_CHECK, |
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168 | DMA_TLB_INVAL_SCAN |
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169 | }; |
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170 | |
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171 | //CONFIG (from Direct Network to Peripherals) |
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172 | enum config_cmd_fsm_state { |
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173 | CONFIG_CMD_IDLE, |
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174 | CONFIG_CMD_TRT_LOCK, |
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175 | CONFIG_CMD_TRT_WAIT, |
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176 | CONFIG_CMD_TRT_SET, |
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177 | CONFIG_CMD_FIFO_PUT, |
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178 | |
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179 | // IOB private configuration segment |
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180 | CONFIG_CMD_PTPR_WRITE, |
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181 | CONFIG_CMD_PTPR_READ, |
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182 | CONFIG_CMD_ACTIVE_WRITE, |
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183 | CONFIG_CMD_ACTIVE_READ, |
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184 | CONFIG_CMD_BVAR_READ, |
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185 | CONFIG_CMD_ETR_READ, |
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186 | CONFIG_CMD_BAD_ID_READ, |
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187 | CONFIG_CMD_INVAL_REQ, |
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188 | CONFIG_CMD_INVAL, |
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189 | CONFIG_CMD_IT_ADDR_IOMMU_WRITE_1, |
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190 | CONFIG_CMD_IT_ADDR_IOMMU_WRITE_2, |
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191 | CONFIG_CMD_IT_ADDR_IOMMU_READ_1, |
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192 | CONFIG_CMD_IT_ADDR_IOMMU_READ_2, |
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193 | CONFIG_CMD_IT_ADDR_WRITE_1, |
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194 | CONFIG_CMD_IT_ADDR_WRITE_2, |
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195 | CONFIG_CMD_IT_ADDR_READ_1, |
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196 | CONFIG_CMD_IT_ADDR_READ_2, |
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197 | CONFIG_CMD_ERROR_WAIT, |
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198 | CONFIG_CMD_ERROR_RSP |
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199 | }; |
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200 | |
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201 | enum config_rsp_fsm_state { |
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202 | CONFIG_RSP_IDLE, |
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203 | CONFIG_RSP_TRT_LOCK, |
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204 | CONFIG_RSP_FIFO_PUT |
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205 | }; |
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206 | |
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207 | // Allocates the transaction_tab_dma |
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208 | enum alloc_trt_config_fsm_state { |
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209 | ALLOC_TRT_CONFIG_CMD, |
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210 | ALLOC_TRT_CONFIG_RSP |
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211 | }; |
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212 | |
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213 | //MISS TRANSACTIONS (to Direct Network) |
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214 | enum miss_init_fsm_state { |
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215 | MISS_INIT_IDLE_MISS, |
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216 | MISS_INIT_IDLE_IRQ, |
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217 | MISS_INIT_IRQ_CMD, |
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218 | MISS_INIT_IRQ_RSP, |
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219 | MISS_INIT_TLB_MISS_CMD, |
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220 | MISS_INIT_TLB_MISS_RSP |
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221 | }; |
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222 | |
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223 | ///////////////////////////////////////////////////////////////// |
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224 | |
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225 | // Configuration Error Type |
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226 | enum config_error_type { |
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227 | READ_OK = 0, |
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228 | READ_ERROR = 1, |
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229 | WRITE_OK = 2, |
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230 | WRITE_ERROR = 3 |
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231 | }; |
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232 | |
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233 | // Miss types for iotlb |
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234 | enum tlb_miss_type_e |
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235 | { |
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236 | PTE1_MISS, |
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237 | PTE2_MISS |
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238 | }; |
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239 | |
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240 | // IOB Configuration registers |
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241 | // Required segment size = (8 + 2*nb_periph) words |
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242 | enum { |
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243 | IOB_IOMMU_PTPR = 0, // R/W : Page Table Pointer Register |
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244 | IOB_IOMMU_ACTIVE = 1, // R/W : IOMMU activated if not 0 |
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245 | IOB_IOMMU_BVAR = 2, // R : Bad Virtual Address |
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246 | IOB_IOMMU_ETR = 3, // R : Error type |
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247 | IOB_IOMMU_BAD_ID = 4, // R : Faulty peripheral Index |
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248 | IOB_INVAL_PTE = 5, // W : Invalidate PTE. Virtual Address |
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249 | IOB_IT_ADDR_IOMMU_LO = 6, // R/W |
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250 | IOB_IT_ADDR_IOMMU_HI = 7, // R/W |
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251 | IOB_IT_ADDR_BEGIN = 8 // R/W : One register by IO |
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252 | // Addressed by two 32-bit words each |
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253 | }; |
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254 | |
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255 | |
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256 | // Error Type |
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257 | enum mmu_error_type_e |
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258 | { |
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259 | MMU_NONE = 0x0000, // None |
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260 | MMU_WRITE_ACCES_VIOLATION = 0x0008, // Write access of write access to a non writable page (bit W in flags) |
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261 | MMU_WRITE_PT1_ILLEGAL_ACCESS = 0x0040, // Write access of Bus Error accessing Table 1 |
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262 | MMU_READ_PT1_UNMAPPED = 0x1001, // Read access of Page fault on Page Table 1 |
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263 | MMU_READ_PT2_UNMAPPED = 0x1002, // Read access of Page fault on Page Table 2 |
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264 | MMU_READ_PT1_ILLEGAL_ACCESS = 0x1040, // Read access of Bus Error in Table1 access |
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265 | MMU_READ_PT2_ILLEGAL_ACCESS = 0x1080, // Read access of Bus Error in Table2 access |
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266 | MMU_READ_DATA_ILLEGAL_ACCESS = 0x1100, // Read access of Bus Error in cache access |
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267 | }; |
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268 | |
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269 | |
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270 | public: |
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271 | sc_in<bool> p_clk; |
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272 | sc_in<bool> p_resetn; |
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273 | sc_in<bool> *p_irq_in; |
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274 | |
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275 | soclib::caba::VciInitiator<vci_param_x> p_vci_ini_dma; // XRAM Noc |
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276 | soclib::caba::VciTarget<vci_param_io> p_vci_tgt_dma; |
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277 | |
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278 | soclib::caba::VciInitiator<vci_param_io> p_vci_ini_config; |
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279 | soclib::caba::VciTarget<vci_param_d> p_vci_tgt_config; |
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280 | |
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281 | soclib::caba::VciInitiator<vci_param_d> p_vci_ini_miss; |
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282 | |
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283 | private: |
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284 | const size_t m_words; |
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285 | const size_t m_nb_periph; |
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286 | |
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287 | // STRUCTURAL PARAMETERS |
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288 | // soclib::common::AddressDecodingTable<unsigned long, bool> m_locality_table_config; |
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289 | // soclib::common::AddressDecodingTable<unsigned long, int> m_routing_table_config; |
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290 | //const soclib::common::MappingTable& m_mtio; |
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291 | |
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292 | uint32_t m_transaction_tab_dma_lines; |
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293 | TransactionTabIO m_transaction_tab_dma; // dma transaction table |
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294 | |
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295 | uint32_t m_transaction_tab_config_lines; |
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296 | TransactionTabIO m_transaction_tab_config; // config transaction table |
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297 | |
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298 | // Direct Network |
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299 | const soclib::common::Segment m_segment_config; |
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300 | const vci_srcid_t m_srcid_miss; |
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301 | // XRAM Network |
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302 | const vci_srcid_t_x m_srcid_dma; |
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303 | // IO Network |
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304 | const soclib::common::Segment m_segment_io; |
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305 | const vci_srcid_t m_srcid_config; |
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306 | |
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307 | const size_t m_iotlb_ways; |
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308 | const size_t m_iotlb_sets; |
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309 | const size_t m_paddr_nbits; |
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310 | |
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311 | |
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312 | ///////////////////////////////////////////// |
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313 | // debug variables (for each FSM) |
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314 | ///////////////////////////////////////////// |
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315 | uint32_t m_debug_start_cycle; |
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316 | bool m_debug_ok; |
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317 | |
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318 | bool m_debug_dma_cmd_fsm; |
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319 | bool m_debug_dma_rsp_fsm; |
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320 | bool m_debug_dma_tlb_fsm; |
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321 | bool m_debug_config_cmd_fsm; |
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322 | bool m_debug_config_rsp_fsm; |
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323 | bool m_debug_miss_init_fsm; |
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324 | |
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325 | /////////////////////////////// |
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326 | // MEMORY MAPPED REGISTERS |
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327 | /////////////////////////////// |
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328 | sc_signal<uint32_t> r_iommu_ptpr; // page table pointer register |
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329 | sc_signal<bool> r_iommu_active; // iotlb mode |
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330 | sc_signal<uint32_t> r_iommu_bvar; // iommu bad address |
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331 | sc_signal<uint32_t> r_iommu_etr; // iommu error type |
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332 | sc_signal<uint32_t> r_iommu_bad_id; // ID of the peripheral that tried bad operation |
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333 | |
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334 | sc_signal<paddr_t> r_it_addr_iommu; // iommu error type |
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335 | paddr_t *r_it_addr; // iommu error type |
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336 | |
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337 | /////////////////////////////////// |
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338 | // DMA_CMD FSM REGISTERS |
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339 | /////////////////////////////////// |
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340 | sc_signal<int> r_dma_cmd_fsm; // state register |
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341 | sc_signal<int> r_dma_cmd_fsm_save; //saves current state when miss interruption happens |
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342 | sc_signal<bool> r_miss_interrupt; |
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343 | |
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344 | sc_signal<int> r_dma_cmd_count; |
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345 | sc_signal<vci_trdid_t> r_dma_cmd_trt_index; |
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346 | sc_signal<paddr_t> r_dma_paddr; |
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347 | |
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348 | GenericFifo<paddr_t> m_dma_cmd_addr_fifo; |
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349 | //GenericFifo<size_t> m_dma_cmd_length_fifo; |
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350 | GenericFifo<vci_srcid_t> m_dma_cmd_srcid_fifo; |
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351 | GenericFifo<vci_trdid_t> m_dma_cmd_trdid_fifo; |
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352 | GenericFifo<vci_pktid_t> m_dma_cmd_pktid_fifo; |
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353 | GenericFifo<vci_be_t> m_dma_cmd_be_fifo; |
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354 | GenericFifo<vci_cmd_t> m_dma_cmd_cmd_fifo; |
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355 | GenericFifo<vci_contig_t> m_dma_cmd_contig_fifo; |
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356 | GenericFifo<vci_data_t> m_dma_cmd_data_fifo; |
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357 | GenericFifo<vci_eop_t> m_dma_cmd_eop_fifo; |
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358 | GenericFifo<vci_cons_t> m_dma_cmd_cons_fifo; |
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359 | GenericFifo<vci_plen_t> m_dma_cmd_plen_fifo; |
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360 | GenericFifo<vci_wrap_t> m_dma_cmd_wrap_fifo; |
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361 | GenericFifo<vci_cfixed_t> m_dma_cmd_cfixed_fifo; |
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362 | GenericFifo<vci_clen_t> m_dma_cmd_clen_fifo; |
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363 | |
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364 | // Command storage registers (in case of miss tlb) |
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365 | sc_signal<paddr_t> r_miss_paddr; |
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366 | sc_signal<vci_cmd_t> r_miss_cmd ; |
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367 | sc_signal<vci_contig_t> r_miss_contig; |
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368 | sc_signal<vci_cons_t> r_miss_cons ; |
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369 | sc_signal<vci_plen_t> r_miss_plen ; |
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370 | sc_signal<vci_wrap_t> r_miss_wrap ; |
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371 | sc_signal<vci_cfixed_t> r_miss_cfixed; |
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372 | sc_signal<vci_clen_t> r_miss_clen ; |
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373 | sc_signal<vci_srcid_t> r_miss_srcid ; |
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374 | sc_signal<vci_trdid_t> r_miss_trdid ; |
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375 | sc_signal<vci_pktid_t> r_miss_pktid ; |
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376 | vci_data_t *r_miss_data ; |
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377 | vci_be_t *r_miss_be; |
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378 | |
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379 | // Error registers |
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380 | sc_signal<int> r_dma_error_type; |
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381 | sc_signal<vci_trdid_t> r_dma_error_trdid; |
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382 | sc_signal<vci_pktid_t> r_dma_error_pktid; |
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383 | |
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384 | /////////////////////////////////// |
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385 | // DMA_TLB FSM REGISTERS |
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386 | /////////////////////////////////// |
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387 | sc_signal<int> r_dma_tlb_fsm; // state register |
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388 | sc_signal<bool> r_waiting_transaction; // Flag for returning from |
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389 | // invalidation interruptions |
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390 | sc_signal<int> r_tlb_miss_type; |
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391 | |
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392 | sc_signal<vaddr_t> r_iotlb_vaddr; // virtual address for a tlb miss |
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393 | sc_signal<paddr_t> r_iotlb_paddr; // physical address of pte |
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394 | sc_signal<uint32_t> r_iotlb_pte_flags; // pte1 or first word of pte2 |
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395 | sc_signal<uint32_t> r_iotlb_pte_ppn; // second word of pte2 |
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396 | sc_signal<size_t> r_iotlb_way; // selected way in tlb |
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397 | sc_signal<size_t> r_iotlb_set; // selected set in tlb |
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398 | |
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399 | ////////////////////////////////////////////////////////////////// |
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400 | // IOTLB |
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401 | ////////////////////////////////////////////////////////////////// |
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402 | GenericTlb<paddr_t> r_iotlb; |
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403 | |
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404 | /////////////////////////////////// |
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405 | // DMA_RSP FSM REGISTERS |
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406 | /////////////////////////////////// |
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407 | sc_signal<int> r_dma_rsp_fsm; |
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408 | |
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409 | sc_signal<vci_trdid_t> r_dma_rtrdid; |
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410 | sc_signal<vci_srcid_t> r_dma_rsrcid; |
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411 | |
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412 | GenericFifo<vci_data_t> m_dma_rsp_data_fifo; |
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413 | GenericFifo<vci_srcid_t> m_dma_rsp_rsrcid_fifo; |
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414 | GenericFifo<vci_trdid_t> m_dma_rsp_rtrdid_fifo; |
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415 | GenericFifo<vci_pktid_t> m_dma_rsp_rpktid_fifo; |
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416 | GenericFifo<vci_eop_t> m_dma_rsp_reop_fifo; |
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417 | GenericFifo<vci_rerror_t> m_dma_rsp_rerror_fifo; |
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418 | |
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419 | //Communication between DMA_CMD and DMA_RSP |
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420 | sc_signal<bool> r_dma_cmd_rsp_erase_req; |
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421 | sc_signal<bool> r_dma_cmd_error_req; |
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422 | //Communication between DMA_CMD and TLB |
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423 | sc_signal<bool> r_dma_tlb_req; |
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424 | sc_signal<bool> r_tlb_dma_untreated; |
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425 | sc_signal<bool> r_dma_tlb_error_req; |
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426 | sc_signal<int> r_tlb_error_type; |
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427 | //Communication betweeen TLB and CONFIG_CMD |
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428 | sc_signal<bool> r_config_tlb_req; |
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429 | sc_signal<vaddr_t> r_config_tlb_inval_vaddr; |
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430 | |
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431 | /////////////////////////////////// |
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432 | // ALLOC_TRT_DMA FSM REGISTERS |
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433 | /////////////////////////////////// |
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434 | sc_signal<int> r_alloc_trt_dma_fsm; // state register |
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435 | |
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436 | |
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437 | /////////////////////////////////// |
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438 | // CONFIG_CMD FSM REGISTERS |
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439 | /////////////////////////////////// |
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440 | sc_signal<int> r_config_cmd_fsm; // state register |
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441 | |
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442 | sc_signal<vci_trdid_t> r_config_cmd_trt_index; |
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443 | |
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444 | GenericFifo<paddr_t> m_config_cmd_addr_fifo; |
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445 | //GenericFifo<size_t> m_config_cmd_length_fifo; |
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446 | GenericFifo<vci_srcid_t> m_config_cmd_srcid_fifo; |
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447 | GenericFifo<vci_trdid_t> m_config_cmd_trdid_fifo; |
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448 | GenericFifo<vci_pktid_t> m_config_cmd_pktid_fifo; |
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449 | GenericFifo<vci_be_t> m_config_cmd_be_fifo; |
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450 | GenericFifo<vci_cmd_t> m_config_cmd_cmd_fifo; |
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451 | GenericFifo<vci_contig_t> m_config_cmd_contig_fifo; |
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452 | GenericFifo<vci_data_t> m_config_cmd_data_fifo; |
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453 | GenericFifo<vci_eop_t> m_config_cmd_eop_fifo; |
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454 | GenericFifo<vci_cons_t> m_config_cmd_cons_fifo; |
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455 | GenericFifo<vci_plen_t> m_config_cmd_plen_fifo; |
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456 | GenericFifo<vci_wrap_t> m_config_cmd_wrap_fifo; |
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457 | GenericFifo<vci_cfixed_t> m_config_cmd_cfixed_fifo; |
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458 | GenericFifo<vci_clen_t> m_config_cmd_clen_fifo; |
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459 | |
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460 | |
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461 | // Private configuration registers |
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462 | sc_signal<int> r_config_error_type; // rerror field |
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463 | sc_signal<vci_data_t> r_config_first_word; |
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464 | sc_signal<int> r_it_index; |
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465 | |
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466 | GenericFifo<vci_data_t> m_config_local_data_fifo; |
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467 | GenericFifo<vci_srcid_t> m_config_local_rsrcid_fifo; |
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468 | GenericFifo<vci_trdid_t> m_config_local_rtrdid_fifo; |
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469 | GenericFifo<vci_pktid_t> m_config_local_rpktid_fifo; |
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470 | GenericFifo<vci_eop_t> m_config_local_reop_fifo; |
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471 | GenericFifo<vci_rerror_t> m_config_local_rerror_fifo; |
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472 | sc_signal<vaddr_t> r_config_vaddr; |
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473 | |
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474 | |
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475 | /////////////////////////////////// |
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476 | // CONFIG_RSP FSM REGISTERS |
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477 | /////////////////////////////////// |
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478 | sc_signal<int> r_config_rsp_fsm; |
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479 | |
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480 | sc_signal<vci_trdid_t> r_config_rtrdid; |
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481 | sc_signal<vci_srcid_t> r_config_rsrcid; |
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482 | |
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483 | GenericFifo<vci_data_t> m_config_rsp_data_fifo; |
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484 | GenericFifo<vci_srcid_t> m_config_rsp_rsrcid_fifo; |
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485 | GenericFifo<vci_trdid_t> m_config_rsp_rtrdid_fifo; |
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486 | GenericFifo<vci_pktid_t> m_config_rsp_rpktid_fifo; |
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487 | GenericFifo<vci_eop_t> m_config_rsp_reop_fifo; |
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488 | GenericFifo<vci_rerror_t> m_config_rsp_rerror_fifo; |
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489 | |
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490 | // Defines priority between the two response FIFOs (local and remote) |
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491 | sc_signal<bool> r_config_rsp_fifo_local_priority; |
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492 | |
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493 | //Communication between CONFIG_CMD and CONFIG_RSP |
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494 | sc_signal<bool> r_config_cmd_rsp_erase_req; // used to signal an erasing on TRT table |
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495 | |
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496 | /////////////////////////////////// |
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497 | // ALLOC_TRT_CONFIG FSM REGISTERS |
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498 | /////////////////////////////////// |
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499 | sc_signal<int> r_alloc_trt_config_fsm; // state register |
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500 | |
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501 | /////////////////////////////////// |
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502 | // MISS_INIT FSM REGISTERS |
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503 | /////////////////////////////////// |
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504 | sc_signal<int> r_miss_init_fsm; |
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505 | |
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506 | sc_signal<vci_data_t> r_miss_rdata; |
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507 | sc_signal<vci_pktid_t> r_miss_rpktid; |
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508 | sc_signal<vci_trdid_t> r_miss_rtrdid; |
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509 | sc_signal<vci_rerror_t> r_miss_rerror; |
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510 | sc_signal<vci_eop_t> r_miss_reop; |
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511 | //sc_signal<vci_data_t> r_miss_rsrcid; |
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512 | |
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513 | sc_signal<size_t> r_miss_rsp_cpt; |
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514 | |
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515 | //IRQ |
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516 | sc_signal<uint32_t> r_irq_pending; |
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517 | sc_signal<uint32_t> r_irq_mask; |
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518 | sc_signal<uint32_t> r_irq_chosen; |
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519 | |
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520 | |
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521 | //Communication between TLB and MISS_INIT |
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522 | sc_signal<bool> r_tlb_miss_init_req; |
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523 | sc_signal<bool> r_miss_init_error; |
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524 | |
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525 | //////////////////////////////////// |
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526 | // MISS PREFETCH BUFFER |
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527 | /////////////////////////////////// |
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528 | //DMA_TLB FSM is its owner. |
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529 | //CONFIG FSM must set a request in order to access the resource (invalidation) |
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530 | |
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531 | // Proposition : Buffer with some lines (4, for example). It could be |
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532 | // indexed from the bit 20. |
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533 | |
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534 | vci_data_t *r_miss_buf_data; // cache line data buffer |
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535 | bool r_miss_buf_valid; // For individual invalidation, |
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536 | // we could rather use the Valid bit at each PTE |
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537 | sc_signal<paddr_t> r_miss_buf_tag; // chache line number |
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538 | sc_signal<paddr_t> r_miss_buf_vaddr_begin; // Virtual address of the first PTE on the line |
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539 | |
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540 | bool r_miss_buf_first_level; // useful only if using both types of pages |
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541 | |
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542 | //////////////////////////////// |
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543 | // Activity counters |
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544 | //////////////////////////////// |
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545 | |
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546 | uint32_t m_cpt_total_cycles; // total number of cycles |
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547 | |
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548 | // TLB activity counters |
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549 | uint32_t m_cpt_iotlb_read; // number of iotlb read |
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550 | uint32_t m_cpt_iotlb_miss; // number of iotlb miss |
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551 | uint32_t m_cost_iotlb_miss; // number of blocking cycles (not the treatment cycles itself) |
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552 | uint32_t m_cpt_iotlbmiss_transaction; // number of iotlb miss transactions to Mem Cache |
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553 | uint32_t m_cost_iotlbmiss_transaction; // cumulated duration for iotlb miss transactions |
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554 | |
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555 | //Transaction Tabs (TRTs) activity counters |
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556 | uint32_t m_cpt_trt_dma_full; // DMA TRT full when a new command arrives |
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557 | uint32_t m_cpt_trt_dma_full_cost; // total number of cycles blocked |
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558 | uint32_t m_cpt_trt_config_full; // Config TRT full when a new command arrives |
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559 | uint32_t m_cpt_trt_config_full_cost; // total number of cycles blocked |
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560 | |
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561 | // FSM activity counters |
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562 | // unused on print_stats |
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563 | uint32_t m_cpt_fsm_dma_cmd [32]; |
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564 | uint32_t m_cpt_fsm_dma_rsp [32]; |
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565 | uint32_t m_cpt_fsm_dma_tlb [32]; |
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566 | uint32_t m_cpt_fsm_alloc_trt_dma [32]; |
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567 | uint32_t m_cpt_fsm_config_cmd [32]; |
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568 | uint32_t m_cpt_fsm_config_rsp [32]; |
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569 | uint32_t m_cpt_fsm_alloc_trt_config [32]; |
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570 | uint32_t m_cpt_fsm_miss_init [32]; |
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571 | |
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572 | protected: |
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573 | SC_HAS_PROCESS(VciIoBridge); |
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574 | |
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575 | public: |
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576 | VciIoBridge( |
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577 | sc_module_name insname, |
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578 | size_t nb_periph, // maximun is 32 |
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579 | const soclib::common::MappingTable &mtx, //external network |
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580 | const soclib::common::MappingTable &mtd, //direct network |
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581 | const soclib::common::MappingTable &mtio, //io network |
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582 | const soclib::common::Segment &seg_config_iob, |
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583 | const soclib::common::IntTab &tgt_index_iocluster, |
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584 | // const soclib::common::IntTab &tgt_index_config, // Direct Noc |
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585 | const soclib::common::IntTab &init_index_direct, // Direct Noc |
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586 | const soclib::common::IntTab &tgt_index_iospace, // IO Noc |
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587 | const soclib::common::IntTab &init_index_iospace, // IO Noc |
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588 | const soclib::common::IntTab &init_index_dma, // XRAM Noc |
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589 | size_t dcache_words, |
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590 | size_t iotlb_ways, |
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591 | size_t iotlb_sets, |
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592 | uint32_t debug_start_cycle, |
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593 | bool debug_ok); |
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594 | |
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595 | ~VciIoBridge(); |
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596 | |
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597 | void print_stats(); |
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598 | void clear_stats(); |
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599 | void print_trace(size_t mode = 0); |
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600 | |
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601 | |
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602 | private: |
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603 | void transition(); |
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604 | void genMoore(); |
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605 | }; |
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606 | |
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607 | }} |
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608 | |
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609 | #endif /* SOCLIB_CABA_VCI_CC_VCACHE_WRAPPER_V4_H */ |
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610 | |
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611 | // Local Variables: |
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612 | // tab-width: 4 |
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613 | // c-basic-offset: 4 |
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614 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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615 | // indent-tabs-mode: nil |
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616 | // End: |
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617 | |
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618 | // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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619 | |
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620 | |
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621 | |
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622 | |
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