[331] | 1 | /* -*- c++ -*- |
---|
[346] | 2 | * |
---|
[331] | 3 | * File : vci_mem_cache.cpp |
---|
| 4 | * Date : 30/10/2008 |
---|
| 5 | * Copyright : UPMC / LIP6 |
---|
| 6 | * Authors : Alain Greiner / Eric Guthmuller |
---|
| 7 | * |
---|
| 8 | * SOCLIB_LGPL_HEADER_BEGIN |
---|
| 9 | * |
---|
| 10 | * This file is part of SoCLib, GNU LGPLv2.1. |
---|
| 11 | * |
---|
| 12 | * SoCLib is free software; you can redistribute it and/or modify it |
---|
| 13 | * under the terms of the GNU Lesser General Public License as published |
---|
| 14 | * by the Free Software Foundation; version 2.1 of the License. |
---|
| 15 | * |
---|
| 16 | * SoCLib is distributed in the hope that it will be useful, but |
---|
| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
| 19 | * Lesser General Public License for more details. |
---|
| 20 | * |
---|
| 21 | * You should have received a copy of the GNU Lesser General Public |
---|
| 22 | * License along with SoCLib; if not, write to the Free Software |
---|
| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
---|
| 24 | * 02110-1301 USA |
---|
| 25 | * |
---|
| 26 | * SOCLIB_LGPL_HEADER_END |
---|
| 27 | * |
---|
| 28 | * Maintainers: alain eric.guthmuller@polytechnique.edu |
---|
| 29 | * cesar.fuguet-tortolero@lip6.fr |
---|
| 30 | * alexandre.joannou@lip6.fr |
---|
| 31 | */ |
---|
| 32 | |
---|
[351] | 33 | #include "../include/vci_mem_cache.h" |
---|
[331] | 34 | |
---|
| 35 | ////// debug services /////////////////////////////////////////////////////// |
---|
| 36 | // All debug messages are conditionned by two variables: |
---|
| 37 | // - compile time : DEBUG_MEMC_*** : defined below |
---|
| 38 | // - execution time : m_debug_*** : defined by constructor arguments |
---|
| 39 | // m_debug_* = (m_debug_ok) and (m_cpt_cycle > m_debug_start_cycle) |
---|
| 40 | ///////////////////////////////////////////////////////////////////////////////// |
---|
| 41 | |
---|
| 42 | #define DEBUG_MEMC_GLOBAL 0 // synthetic trace of all FSMs |
---|
| 43 | #define DEBUG_MEMC_READ 1 // detailed trace of READ FSM |
---|
| 44 | #define DEBUG_MEMC_WRITE 1 // detailed trace of WRITE FSM |
---|
| 45 | #define DEBUG_MEMC_CAS 1 // detailed trace of CAS FSM |
---|
| 46 | #define DEBUG_MEMC_IXR_CMD 1 // detailed trace of IXR_RSP FSM |
---|
| 47 | #define DEBUG_MEMC_IXR_RSP 1 // detailed trace of IXR_RSP FSM |
---|
| 48 | #define DEBUG_MEMC_XRAM_RSP 1 // detailed trace of XRAM_RSP FSM |
---|
| 49 | #define DEBUG_MEMC_CC_SEND 1 // detailed trace of CC_SEND FSM |
---|
| 50 | #define DEBUG_MEMC_MULTI_ACK 1 // detailed trace of MULTI_ACK FSM |
---|
| 51 | #define DEBUG_MEMC_TGT_CMD 1 // detailed trace of TGT_CMD FSM |
---|
| 52 | #define DEBUG_MEMC_TGT_RSP 1 // detailed trace of TGT_RSP FSM |
---|
| 53 | #define DEBUG_MEMC_CLEANUP 1 // detailed trace of CLEANUP FSM |
---|
| 54 | |
---|
| 55 | #define RANDOMIZE_CAS 1 |
---|
| 56 | |
---|
| 57 | namespace soclib |
---|
| 58 | { |
---|
| 59 | namespace caba |
---|
| 60 | { |
---|
| 61 | |
---|
| 62 | const char *tgt_cmd_fsm_str[] = |
---|
| 63 | { |
---|
| 64 | "TGT_CMD_IDLE", |
---|
| 65 | "TGT_CMD_READ", |
---|
| 66 | "TGT_CMD_WRITE", |
---|
| 67 | "TGT_CMD_CAS" |
---|
| 68 | }; |
---|
| 69 | const char *tgt_rsp_fsm_str[] = |
---|
| 70 | { |
---|
| 71 | "TGT_RSP_READ_IDLE", |
---|
| 72 | "TGT_RSP_WRITE_IDLE", |
---|
| 73 | "TGT_RSP_CAS_IDLE", |
---|
| 74 | "TGT_RSP_XRAM_IDLE", |
---|
| 75 | "TGT_RSP_INIT_IDLE", |
---|
| 76 | "TGT_RSP_CLEANUP_IDLE", |
---|
| 77 | "TGT_RSP_READ", |
---|
| 78 | "TGT_RSP_WRITE", |
---|
| 79 | "TGT_RSP_CAS", |
---|
| 80 | "TGT_RSP_XRAM", |
---|
| 81 | "TGT_RSP_INIT", |
---|
| 82 | "TGT_RSP_CLEANUP" |
---|
| 83 | }; |
---|
| 84 | const char *cc_receive_fsm_str[] = |
---|
| 85 | { |
---|
| 86 | "CC_RECEIVE_IDLE", |
---|
| 87 | "CC_RECEIVE_CLEANUP", |
---|
| 88 | "CC_RECEIVE_MULTI_ACK" |
---|
| 89 | }; |
---|
| 90 | const char *cc_send_fsm_str[] = |
---|
| 91 | { |
---|
| 92 | "CC_SEND_XRAM_RSP_IDLE", |
---|
| 93 | "CC_SEND_WRITE_IDLE", |
---|
| 94 | "CC_SEND_CAS_IDLE", |
---|
| 95 | "CC_SEND_CLEANUP_IDLE", |
---|
| 96 | "CC_SEND_CLEANUP_ACK", |
---|
| 97 | "CC_SEND_XRAM_RSP_BRDCAST_HEADER", |
---|
| 98 | "CC_SEND_XRAM_RSP_BRDCAST_NLINE", |
---|
| 99 | "CC_SEND_XRAM_RSP_INVAL_HEADER", |
---|
| 100 | "CC_SEND_XRAM_RSP_INVAL_NLINE", |
---|
| 101 | "CC_SEND_WRITE_BRDCAST_HEADER", |
---|
| 102 | "CC_SEND_WRITE_BRDCAST_NLINE", |
---|
| 103 | "CC_SEND_WRITE_UPDT_HEADER", |
---|
| 104 | "CC_SEND_WRITE_UPDT_NLINE", |
---|
| 105 | "CC_SEND_WRITE_UPDT_DATA", |
---|
| 106 | "CC_SEND_CAS_BRDCAST_HEADER", |
---|
| 107 | "CC_SEND_CAS_BRDCAST_NLINE", |
---|
| 108 | "CC_SEND_CAS_UPDT_HEADER", |
---|
| 109 | "CC_SEND_CAS_UPDT_NLINE", |
---|
| 110 | "CC_SEND_CAS_UPDT_DATA", |
---|
| 111 | "CC_SEND_CAS_UPDT_DATA_HIGH" |
---|
| 112 | }; |
---|
| 113 | const char *multi_ack_fsm_str[] = |
---|
| 114 | { |
---|
| 115 | "MULTI_ACK_IDLE", |
---|
| 116 | "MULTI_ACK_UPT_LOCK", |
---|
| 117 | "MULTI_ACK_UPT_CLEAR", |
---|
| 118 | "MULTI_ACK_WRITE_RSP" |
---|
| 119 | }; |
---|
| 120 | const char *read_fsm_str[] = |
---|
| 121 | { |
---|
| 122 | "READ_IDLE", |
---|
| 123 | "READ_DIR_REQ", |
---|
| 124 | "READ_DIR_LOCK", |
---|
| 125 | "READ_DIR_HIT", |
---|
| 126 | "READ_HEAP_REQ", |
---|
| 127 | "READ_HEAP_LOCK", |
---|
| 128 | "READ_HEAP_WRITE", |
---|
| 129 | "READ_HEAP_ERASE", |
---|
| 130 | "READ_HEAP_LAST", |
---|
| 131 | "READ_RSP", |
---|
| 132 | "READ_TRT_LOCK", |
---|
| 133 | "READ_TRT_SET", |
---|
| 134 | "READ_TRT_REQ" |
---|
| 135 | }; |
---|
| 136 | const char *write_fsm_str[] = |
---|
| 137 | { |
---|
| 138 | "WRITE_IDLE", |
---|
| 139 | "WRITE_NEXT", |
---|
| 140 | "WRITE_DIR_REQ", |
---|
| 141 | "WRITE_DIR_LOCK", |
---|
| 142 | "WRITE_DIR_READ", |
---|
| 143 | "WRITE_DIR_HIT", |
---|
| 144 | "WRITE_UPT_LOCK", |
---|
| 145 | "WRITE_UPT_HEAP_LOCK", |
---|
| 146 | "WRITE_UPT_REQ", |
---|
| 147 | "WRITE_UPT_NEXT", |
---|
| 148 | "WRITE_UPT_DEC", |
---|
| 149 | "WRITE_RSP", |
---|
| 150 | "WRITE_MISS_TRT_LOCK", |
---|
| 151 | "WRITE_MISS_TRT_DATA", |
---|
| 152 | "WRITE_MISS_TRT_SET", |
---|
| 153 | "WRITE_MISS_XRAM_REQ", |
---|
| 154 | "WRITE_BC_TRT_LOCK", |
---|
| 155 | "WRITE_BC_UPT_LOCK", |
---|
| 156 | "WRITE_BC_DIR_INVAL", |
---|
| 157 | "WRITE_BC_CC_SEND", |
---|
| 158 | "WRITE_BC_XRAM_REQ", |
---|
| 159 | "WRITE_WAIT" |
---|
| 160 | }; |
---|
| 161 | const char *ixr_rsp_fsm_str[] = |
---|
| 162 | { |
---|
| 163 | "IXR_RSP_IDLE", |
---|
| 164 | "IXR_RSP_ACK", |
---|
| 165 | "IXR_RSP_TRT_ERASE", |
---|
| 166 | "IXR_RSP_TRT_READ" |
---|
| 167 | }; |
---|
| 168 | const char *xram_rsp_fsm_str[] = |
---|
| 169 | { |
---|
| 170 | "XRAM_RSP_IDLE", |
---|
| 171 | "XRAM_RSP_TRT_COPY", |
---|
| 172 | "XRAM_RSP_TRT_DIRTY", |
---|
| 173 | "XRAM_RSP_DIR_LOCK", |
---|
| 174 | "XRAM_RSP_DIR_UPDT", |
---|
| 175 | "XRAM_RSP_DIR_RSP", |
---|
| 176 | "XRAM_RSP_INVAL_LOCK", |
---|
| 177 | "XRAM_RSP_INVAL_WAIT", |
---|
| 178 | "XRAM_RSP_INVAL", |
---|
| 179 | "XRAM_RSP_WRITE_DIRTY", |
---|
| 180 | "XRAM_RSP_HEAP_REQ", |
---|
| 181 | "XRAM_RSP_HEAP_ERASE", |
---|
| 182 | "XRAM_RSP_HEAP_LAST", |
---|
| 183 | "XRAM_RSP_ERROR_ERASE", |
---|
| 184 | "XRAM_RSP_ERROR_RSP" |
---|
| 185 | }; |
---|
| 186 | const char *ixr_cmd_fsm_str[] = |
---|
| 187 | { |
---|
| 188 | "IXR_CMD_READ_IDLE", |
---|
| 189 | "IXR_CMD_WRITE_IDLE", |
---|
| 190 | "IXR_CMD_CAS_IDLE", |
---|
| 191 | "IXR_CMD_XRAM_IDLE", |
---|
| 192 | "IXR_CMD_READ_NLINE", |
---|
| 193 | "IXR_CMD_WRITE_NLINE", |
---|
| 194 | "IXR_CMD_CAS_NLINE", |
---|
| 195 | "IXR_CMD_XRAM_DATA" |
---|
| 196 | }; |
---|
| 197 | const char *cas_fsm_str[] = |
---|
| 198 | { |
---|
| 199 | "CAS_IDLE", |
---|
| 200 | "CAS_DIR_REQ", |
---|
| 201 | "CAS_DIR_LOCK", |
---|
| 202 | "CAS_DIR_HIT_READ", |
---|
| 203 | "CAS_DIR_HIT_COMPARE", |
---|
| 204 | "CAS_DIR_HIT_WRITE", |
---|
| 205 | "CAS_UPT_LOCK", |
---|
| 206 | "CAS_UPT_HEAP_LOCK", |
---|
| 207 | "CAS_UPT_REQ", |
---|
| 208 | "CAS_UPT_NEXT", |
---|
| 209 | "CAS_BC_TRT_LOCK", |
---|
| 210 | "CAS_BC_UPT_LOCK", |
---|
| 211 | "CAS_BC_DIR_INVAL", |
---|
| 212 | "CAS_BC_CC_SEND", |
---|
| 213 | "CAS_BC_XRAM_REQ", |
---|
| 214 | "CAS_RSP_FAIL", |
---|
| 215 | "CAS_RSP_SUCCESS", |
---|
| 216 | "CAS_MISS_TRT_LOCK", |
---|
| 217 | "CAS_MISS_TRT_SET", |
---|
| 218 | "CAS_MISS_XRAM_REQ", |
---|
| 219 | "CAS_WAIT" |
---|
| 220 | }; |
---|
| 221 | const char *cleanup_fsm_str[] = |
---|
| 222 | { |
---|
| 223 | "CLEANUP_IDLE", |
---|
| 224 | "CLEANUP_GET_NLINE", |
---|
| 225 | "CLEANUP_DIR_REQ", |
---|
| 226 | "CLEANUP_DIR_LOCK", |
---|
| 227 | "CLEANUP_DIR_WRITE", |
---|
| 228 | "CLEANUP_HEAP_REQ", |
---|
| 229 | "CLEANUP_HEAP_LOCK", |
---|
| 230 | "CLEANUP_HEAP_SEARCH", |
---|
| 231 | "CLEANUP_HEAP_CLEAN", |
---|
| 232 | "CLEANUP_HEAP_FREE", |
---|
| 233 | "CLEANUP_UPT_LOCK", |
---|
| 234 | "CLEANUP_UPT_DECREMENT", |
---|
| 235 | "CLEANUP_UPT_CLEAR", |
---|
| 236 | "CLEANUP_WRITE_RSP", |
---|
| 237 | "CLEANUP_SEND_ACK" |
---|
| 238 | }; |
---|
| 239 | const char *alloc_dir_fsm_str[] = |
---|
| 240 | { |
---|
| 241 | "ALLOC_DIR_RESET", |
---|
| 242 | "ALLOC_DIR_READ", |
---|
| 243 | "ALLOC_DIR_WRITE", |
---|
| 244 | "ALLOC_DIR_CAS", |
---|
| 245 | "ALLOC_DIR_CLEANUP", |
---|
| 246 | "ALLOC_DIR_XRAM_RSP" |
---|
| 247 | }; |
---|
| 248 | const char *alloc_trt_fsm_str[] = |
---|
| 249 | { |
---|
| 250 | "ALLOC_TRT_READ", |
---|
| 251 | "ALLOC_TRT_WRITE", |
---|
| 252 | "ALLOC_TRT_CAS", |
---|
| 253 | "ALLOC_TRT_XRAM_RSP", |
---|
| 254 | "ALLOC_TRT_IXR_RSP" |
---|
| 255 | }; |
---|
| 256 | const char *alloc_upt_fsm_str[] = |
---|
| 257 | { |
---|
| 258 | "ALLOC_UPT_WRITE", |
---|
| 259 | "ALLOC_UPT_XRAM_RSP", |
---|
| 260 | "ALLOC_UPT_MULTI_ACK", |
---|
| 261 | "ALLOC_UPT_CLEANUP", |
---|
| 262 | "ALLOC_UPT_CAS" |
---|
| 263 | }; |
---|
| 264 | const char *alloc_heap_fsm_str[] = |
---|
| 265 | { |
---|
| 266 | "ALLOC_HEAP_RESET", |
---|
| 267 | "ALLOC_HEAP_READ", |
---|
| 268 | "ALLOC_HEAP_WRITE", |
---|
| 269 | "ALLOC_HEAP_CAS", |
---|
| 270 | "ALLOC_HEAP_CLEANUP", |
---|
| 271 | "ALLOC_HEAP_XRAM_RSP" |
---|
| 272 | }; |
---|
| 273 | |
---|
| 274 | #define tmpl(x) \ |
---|
| 275 | template<typename vci_param> x \ |
---|
| 276 | VciMemCache<vci_param> |
---|
| 277 | |
---|
[346] | 278 | using namespace soclib::common; |
---|
[331] | 279 | |
---|
| 280 | //////////////////////////////// |
---|
| 281 | // Constructor |
---|
| 282 | //////////////////////////////// |
---|
| 283 | |
---|
| 284 | tmpl(/**/) ::VciMemCache( |
---|
[346] | 285 | sc_module_name name, |
---|
| 286 | const MappingTable &mtp, // mapping table for direct network |
---|
| 287 | const MappingTable &mtx, // mapping table for external network |
---|
| 288 | const IntTab &srcid_x, // global index on external network |
---|
| 289 | const IntTab &tgtid_d, // global index on direct network |
---|
| 290 | const size_t cc_global_id, // global index on cc network |
---|
| 291 | const size_t nways, // number of ways per set |
---|
| 292 | const size_t nsets, // number of associative sets |
---|
| 293 | const size_t nwords, // number of words in cache line |
---|
| 294 | const size_t max_copies, // max number of copies in heap |
---|
| 295 | const size_t heap_size, // number of heap entries |
---|
| 296 | const size_t trt_lines, // number of TRT entries |
---|
| 297 | const size_t upt_lines, // number of UPT entries |
---|
| 298 | const size_t debug_start_cycle, |
---|
| 299 | const bool debug_ok) |
---|
[331] | 300 | |
---|
| 301 | : soclib::caba::BaseModule(name), |
---|
| 302 | |
---|
[346] | 303 | p_clk( "p_clk" ), |
---|
| 304 | p_resetn( "p_resetn" ), |
---|
| 305 | p_vci_tgt( "p_vci_tgt" ), |
---|
| 306 | p_vci_ixr( "p_vci_ixr" ), |
---|
| 307 | p_dspin_in( "p_dspin_in" ), |
---|
| 308 | p_dspin_out( "p_dspin_out" ), |
---|
[331] | 309 | |
---|
[346] | 310 | m_seglist( mtp.getSegmentList(tgtid_d) ), |
---|
| 311 | m_nseg( 0 ), |
---|
| 312 | m_srcid_x( mtx.indexForId(srcid_x) ), |
---|
| 313 | m_initiators( 1 << vci_param::S ), |
---|
| 314 | m_heap_size( heap_size ), |
---|
| 315 | m_ways( nways ), |
---|
| 316 | m_sets( nsets ), |
---|
| 317 | m_words( nwords ), |
---|
| 318 | m_cc_global_id( cc_global_id ), |
---|
| 319 | m_debug_start_cycle( debug_start_cycle ), |
---|
| 320 | m_debug_ok( debug_ok ), |
---|
| 321 | m_trt_lines(trt_lines), |
---|
| 322 | m_trt(trt_lines, nwords), |
---|
| 323 | m_upt_lines(upt_lines), |
---|
| 324 | m_upt(upt_lines), |
---|
[331] | 325 | m_cache_directory(nways, nsets, nwords, vci_param::N), |
---|
| 326 | m_cache_data(nways, nsets, nwords), |
---|
| 327 | m_heap(m_heap_size), |
---|
[346] | 328 | m_max_copies( max_copies ), |
---|
[331] | 329 | m_llsc_table(), |
---|
| 330 | |
---|
| 331 | #define L2 soclib::common::uint32_log2 |
---|
| 332 | m_x(L2(m_words), 2), |
---|
| 333 | m_y(L2(m_sets), L2(m_words) + 2), |
---|
| 334 | m_z(vci_param::N - L2(m_sets) - L2(m_words) - 2, L2(m_sets) + L2(m_words) + 2), |
---|
| 335 | m_nline(vci_param::N - L2(m_words) - 2, L2(m_words) + 2), |
---|
| 336 | #undef L2 |
---|
| 337 | |
---|
| 338 | // XMIN(5 bits) / XMAX(5 bits) / YMIN(5 bits) / YMAX(5 bits) |
---|
| 339 | // 0b00000 / 0b11111 / 0b00000 / 0b11111 |
---|
| 340 | m_broadcast_address(0x7C1F), |
---|
| 341 | |
---|
| 342 | // FIFOs |
---|
| 343 | m_cmd_read_addr_fifo("m_cmd_read_addr_fifo", 4), |
---|
| 344 | m_cmd_read_length_fifo("m_cmd_read_length_fifo", 4), |
---|
| 345 | m_cmd_read_srcid_fifo("m_cmd_read_srcid_fifo", 4), |
---|
| 346 | m_cmd_read_trdid_fifo("m_cmd_read_trdid_fifo", 4), |
---|
| 347 | m_cmd_read_pktid_fifo("m_cmd_read_pktid_fifo", 4), |
---|
| 348 | |
---|
| 349 | m_cmd_write_addr_fifo("m_cmd_write_addr_fifo",8), |
---|
| 350 | m_cmd_write_eop_fifo("m_cmd_write_eop_fifo",8), |
---|
| 351 | m_cmd_write_srcid_fifo("m_cmd_write_srcid_fifo",8), |
---|
| 352 | m_cmd_write_trdid_fifo("m_cmd_write_trdid_fifo",8), |
---|
| 353 | m_cmd_write_pktid_fifo("m_cmd_write_pktid_fifo",8), |
---|
| 354 | m_cmd_write_data_fifo("m_cmd_write_data_fifo",8), |
---|
| 355 | m_cmd_write_be_fifo("m_cmd_write_be_fifo",8), |
---|
| 356 | |
---|
| 357 | m_cmd_cas_addr_fifo("m_cmd_cas_addr_fifo",4), |
---|
| 358 | m_cmd_cas_eop_fifo("m_cmd_cas_eop_fifo",4), |
---|
| 359 | m_cmd_cas_srcid_fifo("m_cmd_cas_srcid_fifo",4), |
---|
| 360 | m_cmd_cas_trdid_fifo("m_cmd_cas_trdid_fifo",4), |
---|
| 361 | m_cmd_cas_pktid_fifo("m_cmd_cas_pktid_fifo",4), |
---|
| 362 | m_cmd_cas_wdata_fifo("m_cmd_cas_wdata_fifo",4), |
---|
| 363 | |
---|
| 364 | m_cc_receive_to_cleanup_fifo("m_cc_receive_to_cleanup_fifo", 4), |
---|
| 365 | m_cc_receive_to_multi_ack_fifo("m_cc_receive_to_multi_ack_fifo", 4), |
---|
| 366 | |
---|
| 367 | r_tgt_cmd_fsm("r_tgt_cmd_fsm"), |
---|
| 368 | |
---|
| 369 | r_read_fsm("r_read_fsm"), |
---|
| 370 | |
---|
| 371 | r_write_fsm("r_write_fsm"), |
---|
| 372 | |
---|
| 373 | m_write_to_cc_send_inst_fifo("m_write_to_cc_send_inst_fifo",8), |
---|
| 374 | m_write_to_cc_send_srcid_fifo("m_write_to_cc_send_srcid_fifo",8), |
---|
| 375 | #if L1_MULTI_CACHE |
---|
| 376 | m_write_to_cc_send_cache_id_fifo("m_write_to_cc_send_cache_id_fifo",8), |
---|
| 377 | #endif |
---|
| 378 | |
---|
| 379 | r_multi_ack_fsm("r_multi_ack_fsm"), |
---|
| 380 | |
---|
| 381 | r_cleanup_fsm("r_cleanup_fsm"), |
---|
| 382 | |
---|
| 383 | r_cas_fsm("r_cas_fsm"), |
---|
| 384 | |
---|
| 385 | m_cas_to_cc_send_inst_fifo("m_cas_to_cc_send_inst_fifo",8), |
---|
| 386 | m_cas_to_cc_send_srcid_fifo("m_cas_to_cc_send_srcid_fifo",8), |
---|
| 387 | #if L1_MULTI_CACHE |
---|
| 388 | m_cas_to_cc_send_cache_id_fifo("m_cas_to_cc_send_cache_id_fifo",8), |
---|
| 389 | #endif |
---|
| 390 | |
---|
| 391 | r_ixr_rsp_fsm("r_ixr_rsp_fsm"), |
---|
| 392 | r_xram_rsp_fsm("r_xram_rsp_fsm"), |
---|
| 393 | |
---|
| 394 | m_xram_rsp_to_cc_send_inst_fifo("m_xram_rsp_to_cc_send_inst_fifo",8), |
---|
| 395 | m_xram_rsp_to_cc_send_srcid_fifo("m_xram_rsp_to_cc_send_srcid_fifo",8), |
---|
| 396 | #if L1_MULTI_CACHE |
---|
| 397 | m_xram_rsp_to_cc_send_cache_id_fifo("m_xram_rsp_to_cc_send_cache_id_fifo",8), |
---|
| 398 | #endif |
---|
| 399 | |
---|
| 400 | r_ixr_cmd_fsm("r_ixr_cmd_fsm"), |
---|
| 401 | |
---|
| 402 | r_tgt_rsp_fsm("r_tgt_rsp_fsm"), |
---|
| 403 | |
---|
| 404 | r_cc_send_fsm("r_cc_send_fsm"), |
---|
| 405 | r_cc_receive_fsm("r_cc_receive_fsm"), |
---|
| 406 | |
---|
| 407 | r_alloc_dir_fsm("r_alloc_dir_fsm"), |
---|
| 408 | r_alloc_dir_reset_cpt("r_alloc_dir_reset_cpt"), |
---|
| 409 | r_alloc_trt_fsm("r_alloc_trt_fsm"), |
---|
| 410 | r_alloc_upt_fsm("r_alloc_upt_fsm"), |
---|
| 411 | r_alloc_heap_fsm("r_alloc_heap_fsm"), |
---|
| 412 | r_alloc_heap_reset_cpt("r_alloc_heap_reset_cpt") |
---|
| 413 | { |
---|
[346] | 414 | assert(IS_POW_OF_2(nsets)); |
---|
| 415 | assert(IS_POW_OF_2(nwords)); |
---|
| 416 | assert(IS_POW_OF_2(nways)); |
---|
| 417 | assert(nsets); |
---|
| 418 | assert(nwords); |
---|
| 419 | assert(nways); |
---|
[331] | 420 | |
---|
[346] | 421 | // check Transaction table size |
---|
| 422 | assert((uint32_log2(trt_lines) <= vci_param::T) and |
---|
[331] | 423 | "Need more bits for VCI TRDID field"); |
---|
| 424 | |
---|
[346] | 425 | // Get the segments associated to the MemCache |
---|
| 426 | std::list<soclib::common::Segment>::iterator seg; |
---|
| 427 | size_t i = 0; |
---|
[331] | 428 | |
---|
[346] | 429 | for(seg = m_seglist.begin(); seg != m_seglist.end() ; seg++) |
---|
| 430 | { |
---|
| 431 | m_nseg++; |
---|
| 432 | } |
---|
[331] | 433 | |
---|
[346] | 434 | m_seg = new soclib::common::Segment*[m_nseg]; |
---|
[331] | 435 | |
---|
[346] | 436 | for(seg = m_seglist.begin() ; seg != m_seglist.end() ; seg++) |
---|
| 437 | { |
---|
| 438 | m_seg[i] = & (*seg); |
---|
| 439 | i++; |
---|
| 440 | } |
---|
[331] | 441 | |
---|
[346] | 442 | // Allocation for IXR_RSP FSM |
---|
| 443 | r_ixr_rsp_to_xram_rsp_rok = new sc_signal<bool>[m_trt_lines]; |
---|
[331] | 444 | |
---|
[346] | 445 | // Allocation for XRAM_RSP FSM |
---|
| 446 | r_xram_rsp_victim_data = new sc_signal<data_t>[nwords]; |
---|
| 447 | r_xram_rsp_to_tgt_rsp_data = new sc_signal<data_t>[nwords]; |
---|
| 448 | r_xram_rsp_to_ixr_cmd_data = new sc_signal<data_t>[nwords]; |
---|
[331] | 449 | |
---|
[346] | 450 | // Allocation for READ FSM |
---|
| 451 | r_read_data = new sc_signal<data_t>[nwords]; |
---|
| 452 | r_read_to_tgt_rsp_data = new sc_signal<data_t>[nwords]; |
---|
[331] | 453 | |
---|
[346] | 454 | // Allocation for WRITE FSM |
---|
| 455 | r_write_data = new sc_signal<data_t>[nwords]; |
---|
| 456 | r_write_be = new sc_signal<be_t>[nwords]; |
---|
| 457 | r_write_to_cc_send_data = new sc_signal<data_t>[nwords]; |
---|
| 458 | r_write_to_cc_send_be = new sc_signal<be_t>[nwords]; |
---|
| 459 | r_write_to_ixr_cmd_data = new sc_signal<data_t>[nwords]; |
---|
[331] | 460 | |
---|
[346] | 461 | // Allocation for CAS FSM |
---|
| 462 | r_cas_to_ixr_cmd_data = new sc_signal<data_t>[nwords]; |
---|
| 463 | r_cas_data = new sc_signal<data_t>[nwords]; |
---|
| 464 | r_cas_rdata = new sc_signal<data_t>[2]; |
---|
[331] | 465 | |
---|
| 466 | |
---|
[346] | 467 | SC_METHOD(transition); |
---|
| 468 | dont_initialize(); |
---|
| 469 | sensitive << p_clk.pos(); |
---|
[331] | 470 | |
---|
[346] | 471 | SC_METHOD(genMoore); |
---|
| 472 | dont_initialize(); |
---|
| 473 | sensitive << p_clk.neg(); |
---|
[331] | 474 | } // end constructor |
---|
| 475 | |
---|
| 476 | /////////////////////////////////////////////////////////////////////// |
---|
| 477 | tmpl(void) ::start_monitor(vci_addr_t addr, vci_addr_t length) |
---|
| 478 | /////////////////////////////////////////////////////////////////////// |
---|
| 479 | { |
---|
| 480 | m_monitor_ok = true; |
---|
| 481 | m_monitor_base = addr; |
---|
| 482 | m_monitor_length = length; |
---|
| 483 | } |
---|
| 484 | |
---|
| 485 | /////////////////////////////////////////////////////////////////////// |
---|
| 486 | tmpl(void) ::stop_monitor() |
---|
| 487 | /////////////////////////////////////////////////////////////////////// |
---|
| 488 | { |
---|
| 489 | m_monitor_ok = false; |
---|
| 490 | } |
---|
| 491 | |
---|
| 492 | /////////////////////////////////////////////////////////////////////// |
---|
| 493 | tmpl(void) ::check_monitor(const char *buf, vci_addr_t addr, data_t data) |
---|
| 494 | /////////////////////////////////////////////////////////////////////// |
---|
| 495 | { |
---|
| 496 | if((addr >= m_monitor_base) and |
---|
| 497 | (addr < m_monitor_base + m_monitor_length)) |
---|
| 498 | { |
---|
| 499 | std::cout << " MEMC Write Monitor : " << buf << " Address = " << std::hex << addr |
---|
[333] | 500 | << " / Data = " << data << " at cycle " << std::dec << m_cpt_cycles << std::endl; |
---|
[331] | 501 | } |
---|
| 502 | } |
---|
| 503 | |
---|
| 504 | /////////////////////////////////////////////////////////////////////// |
---|
| 505 | tmpl(void) ::check_monitor_read(const char *buf, vci_addr_t addr) |
---|
| 506 | /////////////////////////////////////////////////////////////////////// |
---|
| 507 | { |
---|
| 508 | if((addr >= m_monitor_base) and |
---|
| 509 | (addr < m_monitor_base + m_monitor_length)) |
---|
| 510 | { |
---|
| 511 | std::cout << " MEMC Read Monitor : " << buf << " Address = " << std::hex << addr |
---|
| 512 | << std::endl; |
---|
| 513 | } |
---|
| 514 | } |
---|
| 515 | |
---|
| 516 | ///////////////////////////////////////////////////// |
---|
| 517 | tmpl(void) ::copies_monitor(vci_addr_t addr) |
---|
| 518 | ///////////////////////////////////////////////////// |
---|
| 519 | { |
---|
| 520 | DirectoryEntry entry = m_cache_directory.read_neutral(addr); |
---|
| 521 | if((entry.count != m_debug_previous_count) or |
---|
| 522 | (entry.valid != m_debug_previous_hit)) |
---|
| 523 | { |
---|
| 524 | std::cout << " MEMC " << name() |
---|
| 525 | << " cache change at cycle " << std::dec << m_cpt_cycles |
---|
| 526 | << " for address " << std::hex << addr |
---|
| 527 | << " / HIT = " << entry.valid |
---|
| 528 | << " / COUNT = " << std::dec << entry.count << std::endl; |
---|
| 529 | } |
---|
| 530 | m_debug_previous_count = entry.count; |
---|
| 531 | m_debug_previous_hit = entry.valid; |
---|
| 532 | } |
---|
| 533 | |
---|
| 534 | ////////////////////////////////////////////////// |
---|
| 535 | tmpl(void) ::print_trace() |
---|
| 536 | ////////////////////////////////////////////////// |
---|
| 537 | { |
---|
| 538 | std::cout << "MEMC " << name() << std::endl; |
---|
| 539 | std::cout << " " << tgt_cmd_fsm_str[r_tgt_cmd_fsm] |
---|
| 540 | << " | " << tgt_rsp_fsm_str[r_tgt_rsp_fsm] |
---|
| 541 | << " | " << read_fsm_str[r_read_fsm] |
---|
| 542 | << " | " << write_fsm_str[r_write_fsm] |
---|
| 543 | << " | " << cas_fsm_str[r_cas_fsm] |
---|
| 544 | << " | " << cleanup_fsm_str[r_cleanup_fsm] << std::endl; |
---|
| 545 | std::cout << " " << cc_send_fsm_str[r_cc_send_fsm] |
---|
| 546 | << " | " << cc_receive_fsm_str[r_cc_receive_fsm] |
---|
| 547 | << " | " << multi_ack_fsm_str[r_multi_ack_fsm] |
---|
| 548 | << " | " << ixr_cmd_fsm_str[r_ixr_cmd_fsm] |
---|
| 549 | << " | " << ixr_rsp_fsm_str[r_ixr_rsp_fsm] |
---|
| 550 | << " | " << xram_rsp_fsm_str[r_xram_rsp_fsm] << std::endl; |
---|
| 551 | |
---|
| 552 | //m_llsc_table.print_trace(); |
---|
| 553 | |
---|
| 554 | } |
---|
| 555 | |
---|
| 556 | ///////////////////////////////////////// |
---|
| 557 | tmpl(void) ::print_stats() |
---|
| 558 | ///////////////////////////////////////// |
---|
| 559 | { |
---|
| 560 | std::cout << "----------------------------------" << std::dec << std::endl; |
---|
| 561 | std::cout |
---|
[346] | 562 | << "MEM_CACHE " << name() << " / Time = " << m_cpt_cycles << std::endl |
---|
[331] | 563 | << "- READ RATE = " << (double) m_cpt_read/m_cpt_cycles << std::endl |
---|
| 564 | << "- READ TOTAL = " << m_cpt_read << std::endl |
---|
| 565 | << "- READ MISS RATE = " << (double) m_cpt_read_miss/m_cpt_read << std::endl |
---|
| 566 | << "- WRITE RATE = " << (double) m_cpt_write/m_cpt_cycles << std::endl |
---|
| 567 | << "- WRITE TOTAL = " << m_cpt_write << std::endl |
---|
| 568 | << "- WRITE MISS RATE = " << (double) m_cpt_write_miss/m_cpt_write << std::endl |
---|
| 569 | << "- WRITE BURST LENGTH = " << (double) m_cpt_write_cells/m_cpt_write << std::endl |
---|
| 570 | << "- WRITE BURST TOTAL = " << m_cpt_write_cells << std::endl |
---|
| 571 | << "- REQUESTS TRT FULL = " << m_cpt_trt_full << std::endl |
---|
| 572 | << "- READ TRT BLOKED HIT = " << m_cpt_trt_rb << std::endl |
---|
| 573 | << "- UPDATE RATE = " << (double) m_cpt_update/m_cpt_cycles << std::endl |
---|
| 574 | << "- UPDATE ARITY = " << (double) m_cpt_update_mult/m_cpt_update << std::endl |
---|
| 575 | << "- INVAL MULTICAST RATE = " << (double)(m_cpt_inval-m_cpt_inval_brdcast) /m_cpt_cycles << std::endl |
---|
| 576 | << "- INVAL MULTICAST ARITY= " << (double) m_cpt_inval_mult/ (m_cpt_inval-m_cpt_inval_brdcast) << std::endl |
---|
| 577 | << "- INVAL BROADCAST RATE = " << (double) m_cpt_inval_brdcast/m_cpt_cycles << std::endl |
---|
| 578 | << "- SAVE DIRTY RATE = " << (double) m_cpt_write_dirty/m_cpt_cycles << std::endl |
---|
| 579 | << "- CLEANUP RATE = " << (double) m_cpt_cleanup/m_cpt_cycles << std::endl |
---|
| 580 | << "- LL RATE = " << (double) m_cpt_ll/m_cpt_cycles << std::endl |
---|
| 581 | << "- SC RATE = " << (double) m_cpt_sc/m_cpt_cycles << std::endl |
---|
| 582 | << "- CAS RATE = " << (double) m_cpt_cas/m_cpt_cycles << std::endl; |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | ///////////////////////////////// |
---|
| 586 | tmpl(/**/) ::~VciMemCache() |
---|
| 587 | ///////////////////////////////// |
---|
| 588 | { |
---|
| 589 | delete [] r_ixr_rsp_to_xram_rsp_rok; |
---|
| 590 | |
---|
| 591 | delete [] r_xram_rsp_victim_data; |
---|
| 592 | delete [] r_xram_rsp_to_tgt_rsp_data; |
---|
| 593 | delete [] r_xram_rsp_to_ixr_cmd_data; |
---|
| 594 | |
---|
| 595 | delete [] r_read_data; |
---|
| 596 | delete [] r_read_to_tgt_rsp_data; |
---|
| 597 | |
---|
| 598 | delete [] r_write_data; |
---|
| 599 | delete [] r_write_be; |
---|
| 600 | delete [] r_write_to_cc_send_data; |
---|
| 601 | } |
---|
| 602 | |
---|
| 603 | ////////////////////////////////// |
---|
| 604 | tmpl(void) ::transition() |
---|
| 605 | ////////////////////////////////// |
---|
| 606 | { |
---|
| 607 | using soclib::common::uint32_log2; |
---|
| 608 | |
---|
| 609 | // RESET |
---|
| 610 | if(! p_resetn.read()) |
---|
| 611 | { |
---|
| 612 | |
---|
| 613 | // Initializing FSMs |
---|
| 614 | r_tgt_cmd_fsm = TGT_CMD_IDLE; |
---|
| 615 | r_tgt_rsp_fsm = TGT_RSP_READ_IDLE; |
---|
| 616 | r_cc_send_fsm = CC_SEND_XRAM_RSP_IDLE; |
---|
| 617 | r_cc_receive_fsm = CC_RECEIVE_IDLE; |
---|
| 618 | r_multi_ack_fsm = MULTI_ACK_IDLE; |
---|
| 619 | r_read_fsm = READ_IDLE; |
---|
| 620 | r_write_fsm = WRITE_IDLE; |
---|
| 621 | r_cas_fsm = CAS_IDLE; |
---|
| 622 | r_cleanup_fsm = CLEANUP_IDLE; |
---|
| 623 | r_alloc_dir_fsm = ALLOC_DIR_RESET; |
---|
| 624 | r_alloc_heap_fsm = ALLOC_HEAP_RESET; |
---|
| 625 | r_alloc_trt_fsm = ALLOC_TRT_READ; |
---|
| 626 | r_alloc_upt_fsm = ALLOC_UPT_WRITE; |
---|
| 627 | r_ixr_rsp_fsm = IXR_RSP_IDLE; |
---|
| 628 | r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 629 | r_ixr_cmd_fsm = IXR_CMD_READ_IDLE; |
---|
| 630 | |
---|
| 631 | m_debug_global = false; |
---|
| 632 | m_debug_tgt_cmd_fsm = false; |
---|
| 633 | m_debug_tgt_rsp_fsm = false; |
---|
| 634 | m_debug_cc_send_fsm = false; |
---|
| 635 | m_debug_cc_receive_fsm = false; |
---|
| 636 | m_debug_multi_ack_fsm = false; |
---|
| 637 | m_debug_read_fsm = false; |
---|
| 638 | m_debug_write_fsm = false; |
---|
| 639 | m_debug_cas_fsm = false; |
---|
| 640 | m_debug_cleanup_fsm = false; |
---|
| 641 | m_debug_ixr_cmd_fsm = false; |
---|
| 642 | m_debug_ixr_rsp_fsm = false; |
---|
| 643 | m_debug_xram_rsp_fsm = false; |
---|
| 644 | m_debug_previous_hit = false; |
---|
| 645 | m_debug_previous_count = 0; |
---|
| 646 | |
---|
| 647 | // Initializing Tables |
---|
[346] | 648 | m_trt.init(); |
---|
| 649 | m_upt.init(); |
---|
[335] | 650 | m_llsc_table.init(); |
---|
[331] | 651 | |
---|
| 652 | // initializing FIFOs and communication Buffers |
---|
| 653 | |
---|
| 654 | m_cmd_read_addr_fifo.init(); |
---|
| 655 | m_cmd_read_length_fifo.init(); |
---|
| 656 | m_cmd_read_srcid_fifo.init(); |
---|
| 657 | m_cmd_read_trdid_fifo.init(); |
---|
| 658 | m_cmd_read_pktid_fifo.init(); |
---|
| 659 | |
---|
| 660 | m_cmd_write_addr_fifo.init(); |
---|
| 661 | m_cmd_write_eop_fifo.init(); |
---|
| 662 | m_cmd_write_srcid_fifo.init(); |
---|
| 663 | m_cmd_write_trdid_fifo.init(); |
---|
| 664 | m_cmd_write_pktid_fifo.init(); |
---|
| 665 | m_cmd_write_data_fifo.init(); |
---|
| 666 | |
---|
| 667 | m_cmd_cas_addr_fifo.init() ; |
---|
| 668 | m_cmd_cas_srcid_fifo.init() ; |
---|
| 669 | m_cmd_cas_trdid_fifo.init() ; |
---|
| 670 | m_cmd_cas_pktid_fifo.init() ; |
---|
| 671 | m_cmd_cas_wdata_fifo.init() ; |
---|
| 672 | m_cmd_cas_eop_fifo.init() ; |
---|
| 673 | |
---|
| 674 | r_read_to_tgt_rsp_req = false; |
---|
| 675 | r_read_to_ixr_cmd_req = false; |
---|
| 676 | |
---|
| 677 | r_write_to_tgt_rsp_req = false; |
---|
| 678 | r_write_to_ixr_cmd_req = false; |
---|
| 679 | r_write_to_cc_send_multi_req = false; |
---|
| 680 | r_write_to_cc_send_brdcast_req = false; |
---|
| 681 | r_write_to_multi_ack_req = false; |
---|
| 682 | |
---|
| 683 | m_write_to_cc_send_inst_fifo.init(); |
---|
| 684 | m_write_to_cc_send_srcid_fifo.init(); |
---|
| 685 | #if L1_MULTI_CACHE |
---|
| 686 | m_write_to_cc_send_cache_id_fifo.init(); |
---|
| 687 | #endif |
---|
| 688 | |
---|
| 689 | r_cleanup_to_tgt_rsp_req = false; |
---|
| 690 | |
---|
| 691 | m_cc_receive_to_cleanup_fifo.init(); |
---|
| 692 | |
---|
| 693 | r_multi_ack_to_tgt_rsp_req = false; |
---|
| 694 | |
---|
| 695 | m_cc_receive_to_multi_ack_fifo.init(); |
---|
| 696 | |
---|
| 697 | r_cas_to_tgt_rsp_req = false; |
---|
| 698 | r_cas_cpt = 0 ; |
---|
| 699 | r_cas_lfsr = -1 ; |
---|
| 700 | r_cas_to_ixr_cmd_req = false; |
---|
| 701 | r_cas_to_cc_send_multi_req = false; |
---|
| 702 | r_cas_to_cc_send_brdcast_req = false; |
---|
| 703 | |
---|
| 704 | m_cas_to_cc_send_inst_fifo.init(); |
---|
| 705 | m_cas_to_cc_send_srcid_fifo.init(); |
---|
| 706 | #if L1_MULTI_CACHE |
---|
| 707 | m_cas_to_cc_send_cache_id_fifo.init(); |
---|
| 708 | #endif |
---|
| 709 | |
---|
[346] | 710 | for(size_t i=0; i<m_trt_lines ; i++) |
---|
[331] | 711 | { |
---|
| 712 | r_ixr_rsp_to_xram_rsp_rok[i] = false; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | r_xram_rsp_to_tgt_rsp_req = false; |
---|
| 716 | r_xram_rsp_to_cc_send_multi_req = false; |
---|
| 717 | r_xram_rsp_to_cc_send_brdcast_req = false; |
---|
| 718 | r_xram_rsp_to_ixr_cmd_req = false; |
---|
| 719 | r_xram_rsp_trt_index = 0; |
---|
| 720 | |
---|
| 721 | m_xram_rsp_to_cc_send_inst_fifo.init(); |
---|
| 722 | m_xram_rsp_to_cc_send_srcid_fifo.init(); |
---|
| 723 | #if L1_MULTI_CACHE |
---|
| 724 | m_xram_rsp_to_cc_send_cache_id_fifo.init(); |
---|
| 725 | #endif |
---|
| 726 | |
---|
| 727 | r_ixr_cmd_cpt = 0; |
---|
| 728 | r_alloc_dir_reset_cpt = 0; |
---|
| 729 | r_alloc_heap_reset_cpt = 0; |
---|
| 730 | |
---|
[362] | 731 | r_tgt_rsp_key_sent = false; |
---|
| 732 | |
---|
[331] | 733 | // Activity counters |
---|
| 734 | m_cpt_cycles = 0; |
---|
| 735 | m_cpt_read = 0; |
---|
| 736 | m_cpt_read_miss = 0; |
---|
| 737 | m_cpt_write = 0; |
---|
| 738 | m_cpt_write_miss = 0; |
---|
| 739 | m_cpt_write_cells = 0; |
---|
| 740 | m_cpt_write_dirty = 0; |
---|
| 741 | m_cpt_update = 0; |
---|
| 742 | m_cpt_update_mult = 0; |
---|
| 743 | m_cpt_inval_brdcast = 0; |
---|
| 744 | m_cpt_inval = 0; |
---|
| 745 | m_cpt_inval_mult = 0; |
---|
| 746 | m_cpt_cleanup = 0; |
---|
| 747 | m_cpt_ll = 0; |
---|
| 748 | m_cpt_sc = 0; |
---|
| 749 | m_cpt_cas = 0; |
---|
| 750 | m_cpt_trt_full = 0; |
---|
| 751 | m_cpt_trt_rb = 0; |
---|
| 752 | |
---|
| 753 | return; |
---|
| 754 | } |
---|
| 755 | |
---|
| 756 | bool cmd_read_fifo_put = false; |
---|
| 757 | bool cmd_read_fifo_get = false; |
---|
| 758 | |
---|
| 759 | bool cmd_write_fifo_put = false; |
---|
| 760 | bool cmd_write_fifo_get = false; |
---|
| 761 | |
---|
| 762 | bool cmd_cas_fifo_put = false; |
---|
| 763 | bool cmd_cas_fifo_get = false; |
---|
| 764 | |
---|
| 765 | bool cc_receive_to_cleanup_fifo_get = false; |
---|
| 766 | bool cc_receive_to_cleanup_fifo_put = false; |
---|
| 767 | |
---|
| 768 | bool cc_receive_to_multi_ack_fifo_get = false; |
---|
| 769 | bool cc_receive_to_multi_ack_fifo_put = false; |
---|
| 770 | |
---|
| 771 | bool write_to_cc_send_fifo_put = false; |
---|
| 772 | bool write_to_cc_send_fifo_get = false; |
---|
| 773 | bool write_to_cc_send_fifo_inst = false; |
---|
| 774 | size_t write_to_cc_send_fifo_srcid = 0; |
---|
| 775 | |
---|
| 776 | #if L1_MULTI_CACHE |
---|
| 777 | size_t write_to_cc_send_fifo_cache_id = 0; |
---|
| 778 | #endif |
---|
| 779 | |
---|
| 780 | bool xram_rsp_to_cc_send_fifo_put = false; |
---|
| 781 | bool xram_rsp_to_cc_send_fifo_get = false; |
---|
| 782 | bool xram_rsp_to_cc_send_fifo_inst = false; |
---|
| 783 | size_t xram_rsp_to_cc_send_fifo_srcid = 0; |
---|
| 784 | |
---|
| 785 | #if L1_MULTI_CACHE |
---|
| 786 | size_t xram_rsp_to_cc_send_fifo_cache_id = 0; |
---|
| 787 | #endif |
---|
| 788 | |
---|
| 789 | bool cas_to_cc_send_fifo_put = false; |
---|
| 790 | bool cas_to_cc_send_fifo_get = false; |
---|
| 791 | bool cas_to_cc_send_fifo_inst = false; |
---|
| 792 | size_t cas_to_cc_send_fifo_srcid = 0; |
---|
| 793 | |
---|
| 794 | #if L1_MULTI_CACHE |
---|
| 795 | size_t cas_to_cc_send_fifo_cache_id = 0; |
---|
| 796 | #endif |
---|
| 797 | |
---|
| 798 | m_debug_global = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 799 | m_debug_tgt_cmd_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 800 | m_debug_tgt_rsp_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 801 | m_debug_cc_send_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 802 | m_debug_cc_receive_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 803 | m_debug_multi_ack_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 804 | m_debug_read_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 805 | m_debug_write_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 806 | m_debug_cas_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 807 | m_debug_cleanup_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 808 | m_debug_ixr_cmd_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 809 | m_debug_ixr_rsp_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 810 | m_debug_xram_rsp_fsm = (m_cpt_cycles > m_debug_start_cycle) and m_debug_ok; |
---|
| 811 | |
---|
| 812 | #if DEBUG_MEMC_GLOBAL |
---|
| 813 | if(m_debug_global) |
---|
| 814 | { |
---|
| 815 | std::cout |
---|
| 816 | << "---------------------------------------------" << std::dec << std::endl |
---|
[346] | 817 | << "MEM_CACHE " << name() |
---|
[331] | 818 | << " ; Time = " << m_cpt_cycles << std::endl |
---|
| 819 | << " - TGT_CMD FSM = " << tgt_cmd_fsm_str[r_tgt_cmd_fsm.read()] << std::endl |
---|
| 820 | << " - TGT_RSP FSM = " << tgt_rsp_fsm_str[r_tgt_rsp_fsm.read()] << std::endl |
---|
| 821 | << " - CC_SEND FSM = " << cc_send_fsm_str[r_cc_send_fsm.read()] << std::endl |
---|
| 822 | << " - CC_RECEIVE FSM = " << cc_receive_fsm_str[r_cc_receive_fsm.read()] << std::endl |
---|
| 823 | << " - MULTI_ACK FSM = " << multi_ack_fsm_str[r_multi_ack_fsm.read()] << std::endl |
---|
| 824 | << " - READ FSM = " << read_fsm_str[r_read_fsm.read()] << std::endl |
---|
| 825 | << " - WRITE FSM = " << write_fsm_str[r_write_fsm.read()] << std::endl |
---|
| 826 | << " - CAS FSM = " << cas_fsm_str[r_cas_fsm.read()] << std::endl |
---|
| 827 | << " - CLEANUP FSM = " << cleanup_fsm_str[r_cleanup_fsm.read()] << std::endl |
---|
| 828 | << " - IXR_CMD FSM = " << ixr_cmd_fsm_str[r_ixr_cmd_fsm.read()] << std::endl |
---|
| 829 | << " - IXR_RSP FSM = " << ixr_rsp_fsm_str[r_ixr_rsp_fsm.read()] << std::endl |
---|
| 830 | << " - XRAM_RSP FSM = " << xram_rsp_fsm_str[r_xram_rsp_fsm.read()] << std::endl |
---|
| 831 | << " - ALLOC_DIR FSM = " << alloc_dir_fsm_str[r_alloc_dir_fsm.read()] << std::endl |
---|
| 832 | << " - ALLOC_TRT FSM = " << alloc_trt_fsm_str[r_alloc_trt_fsm.read()] << std::endl |
---|
| 833 | << " - ALLOC_UPT FSM = " << alloc_upt_fsm_str[r_alloc_upt_fsm.read()] << std::endl |
---|
| 834 | << " - ALLOC_HEAP FSM = " << alloc_heap_fsm_str[r_alloc_heap_fsm.read()] << std::endl; |
---|
| 835 | } |
---|
| 836 | #endif |
---|
| 837 | |
---|
| 838 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 839 | // TGT_CMD FSM |
---|
| 840 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 841 | // The TGT_CMD_FSM controls the incoming VCI command pakets from the processors |
---|
| 842 | // |
---|
| 843 | // There are 5 types of accepted commands : |
---|
| 844 | // - READ : A READ request has a length of 1 VCI cell. It can be a single word |
---|
| 845 | // or an entire cache line, depending on the PLEN value. |
---|
| 846 | // - WRITE : A WRITE request has a maximum length of 16 cells, and can only |
---|
| 847 | // concern words in a same line. |
---|
| 848 | // - CAS : A CAS request has a length of 2 cells or 4 cells. |
---|
| 849 | // - LL : An LL request has a length of 1 cell. |
---|
| 850 | // - SC : An SC request has a length of 2 cells. First cell contains the |
---|
| 851 | // acces key, second cell the data to write in case of success. |
---|
| 852 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 853 | |
---|
| 854 | switch(r_tgt_cmd_fsm.read()) |
---|
| 855 | { |
---|
| 856 | ////////////////// |
---|
| 857 | case TGT_CMD_IDLE: |
---|
| 858 | if(p_vci_tgt.cmdval) |
---|
| 859 | { |
---|
| 860 | |
---|
| 861 | #if DEBUG_MEMC_TGT_CMD |
---|
| 862 | if(m_debug_tgt_cmd_fsm) |
---|
| 863 | { |
---|
| 864 | std::cout |
---|
| 865 | << " <MEMC " << name() |
---|
| 866 | << ".TGT_CMD_IDLE> Receive command from srcid " |
---|
| 867 | << std::dec << p_vci_tgt.srcid.read() |
---|
| 868 | << " / for address " |
---|
| 869 | << std::hex << p_vci_tgt.address.read() |
---|
| 870 | << std::endl; |
---|
| 871 | } |
---|
| 872 | #endif |
---|
| 873 | // checking segmentation violation |
---|
| 874 | vci_addr_t address = p_vci_tgt.address.read(); |
---|
| 875 | uint32_t plen = p_vci_tgt.plen.read(); |
---|
| 876 | bool found = false; |
---|
| 877 | for(size_t seg_id = 0 ; seg_id < m_nseg ; seg_id++) |
---|
| 878 | { |
---|
| 879 | if(m_seg[seg_id]->contains(address) && |
---|
| 880 | m_seg[seg_id]->contains(address + plen - vci_param::B)) |
---|
| 881 | { |
---|
| 882 | found = true; |
---|
| 883 | } |
---|
| 884 | } |
---|
| 885 | if(not found) |
---|
| 886 | { |
---|
| 887 | std::cout << "VCI_MEM_CACHE ERROR " << name() << std::endl; |
---|
| 888 | std::cout |
---|
| 889 | << "Out of segment VCI address in TGT_CMD_IDLE state (address = " |
---|
| 890 | << std::hex << address << ", srcid = " << p_vci_tgt.srcid.read() |
---|
| 891 | << std::dec << ", cycle = " << m_cpt_cycles << ")" << std::endl; |
---|
| 892 | exit(0); |
---|
| 893 | } |
---|
| 894 | |
---|
| 895 | if(p_vci_tgt.cmd.read() == vci_param::CMD_READ) |
---|
| 896 | { |
---|
| 897 | // check that the pktid is either : |
---|
| 898 | // TYPE_READ_DATA_UNC |
---|
| 899 | // TYPE_READ_DATA_MISS |
---|
| 900 | // TYPE_READ_INS_UNC |
---|
| 901 | // TYPE_READ_INS_MISS |
---|
| 902 | // ==> bit2 must be zero with the TSAR encoding |
---|
| 903 | // ==> mask = 0b0100 = 0x4 |
---|
| 904 | assert(((p_vci_tgt.pktid.read() & 0x4) == 0x0) && |
---|
| 905 | "The type specified in the pktid field is incompatible with the READ CMD"); |
---|
| 906 | r_tgt_cmd_fsm = TGT_CMD_READ; |
---|
| 907 | } |
---|
| 908 | else if(p_vci_tgt.cmd.read() == vci_param::CMD_WRITE) |
---|
| 909 | { |
---|
| 910 | // check that the pktid is TYPE_WRITE |
---|
| 911 | // ==> TYPE_WRITE = X100 with the TSAR encoding |
---|
| 912 | // ==> mask = 0b0111 = 0x7 |
---|
| 913 | assert(((p_vci_tgt.pktid.read() & 0x7) == 0x4) && |
---|
| 914 | "The type specified in the pktid field is incompatible with the WRITE CMD"); |
---|
| 915 | r_tgt_cmd_fsm = TGT_CMD_WRITE; |
---|
| 916 | } |
---|
| 917 | else if(p_vci_tgt.cmd.read() == vci_param::CMD_LOCKED_READ) |
---|
| 918 | { |
---|
| 919 | // check that the pktid is TYPE_LL |
---|
| 920 | // ==> TYPE_LL = X110 with the TSAR encoding |
---|
| 921 | // ==> mask = 0b0111 = 0x7 |
---|
| 922 | assert(((p_vci_tgt.pktid.read() & 0x7) == 0x6) && |
---|
| 923 | "The type specified in the pktid field is incompatible with the LL CMD"); |
---|
| 924 | r_tgt_cmd_fsm = TGT_CMD_READ; |
---|
| 925 | } |
---|
| 926 | else if(p_vci_tgt.cmd.read() == vci_param::CMD_NOP) |
---|
| 927 | { |
---|
| 928 | // check that the pktid is either : |
---|
| 929 | // TYPE_CAS |
---|
| 930 | // TYPE_SC |
---|
| 931 | // ==> TYPE_CAS = X101 with the TSAR encoding |
---|
| 932 | // ==> TYPE_SC = X111 with the TSAR encoding |
---|
| 933 | // ==> mask = 0b0101 = 0x5 |
---|
| 934 | assert(((p_vci_tgt.pktid.read() & 0x5) == 0x5) && |
---|
| 935 | "The type specified in the pktid field is incompatible with the NOP CMD"); |
---|
| 936 | |
---|
| 937 | if((p_vci_tgt.pktid.read() & 0x7) == TYPE_CAS) |
---|
| 938 | r_tgt_cmd_fsm = TGT_CMD_CAS; |
---|
| 939 | else // TYPE_SC |
---|
| 940 | r_tgt_cmd_fsm = TGT_CMD_WRITE; |
---|
| 941 | } |
---|
| 942 | else |
---|
| 943 | { |
---|
| 944 | std::cout << "VCI_MEM_CACHE ERROR " << name() |
---|
| 945 | << " TGT_CMD_IDLE state" << std::endl; |
---|
| 946 | std::cout << " illegal VCI command type" << std::endl; |
---|
| 947 | exit(0); |
---|
| 948 | } |
---|
| 949 | } |
---|
| 950 | break; |
---|
| 951 | |
---|
| 952 | ////////////////// |
---|
| 953 | case TGT_CMD_READ: |
---|
| 954 | // This test checks that the read does not cross a cache line limit. |
---|
| 955 | // It must not be taken into account when dealing with an LL CMD. |
---|
| 956 | if(((m_x[(vci_addr_t) p_vci_tgt.address.read()]+ (p_vci_tgt.plen.read() >>2)) > 16) && (p_vci_tgt.cmd.read() != vci_param::CMD_LOCKED_READ)) |
---|
| 957 | { |
---|
| 958 | std::cout |
---|
| 959 | << "VCI_MEM_CACHE ERROR " << name() << " TGT_CMD_READ state" |
---|
| 960 | << std::endl; |
---|
| 961 | std::cout |
---|
| 962 | << " illegal address/plen combination for VCI read command" << std::endl; |
---|
| 963 | exit(0); |
---|
| 964 | } |
---|
| 965 | if(!p_vci_tgt.eop.read()) |
---|
| 966 | { |
---|
| 967 | std::cout |
---|
| 968 | << "VCI_MEM_CACHE ERROR " << name() << " TGT_CMD_READ state" |
---|
| 969 | << std::endl; |
---|
| 970 | std::cout |
---|
| 971 | << " read or ll command packets must contain one single flit" |
---|
| 972 | << std::endl; |
---|
| 973 | exit(0); |
---|
| 974 | } |
---|
| 975 | if((p_vci_tgt.cmd.read() == vci_param::CMD_LOCKED_READ) && (p_vci_tgt.plen.read() != 8)) |
---|
| 976 | { |
---|
| 977 | std::cout |
---|
| 978 | << "VCI_MEM_CACHE ERROR " << name() << " TGT_CMD_READ state" |
---|
| 979 | << std::endl; |
---|
| 980 | std::cout |
---|
| 981 | << " ll command packets must have a plen of 8" |
---|
| 982 | << std::endl; |
---|
| 983 | exit(0); |
---|
| 984 | } |
---|
| 985 | |
---|
| 986 | if(p_vci_tgt.cmdval && m_cmd_read_addr_fifo.wok()) |
---|
| 987 | { |
---|
| 988 | |
---|
| 989 | #if DEBUG_MEMC_TGT_CMD |
---|
| 990 | if(m_debug_tgt_cmd_fsm) |
---|
| 991 | { |
---|
| 992 | std::cout << " <MEMC " << name() << ".TGT_CMD_READ> Push into read_fifo:" |
---|
| 993 | << " address = " << std::hex << p_vci_tgt.address.read() |
---|
| 994 | << " srcid = " << std::dec << p_vci_tgt.srcid.read() |
---|
| 995 | << " trdid = " << p_vci_tgt.trdid.read() |
---|
| 996 | << " pktid = " << p_vci_tgt.pktid.read() |
---|
| 997 | << " plen = " << std::dec << p_vci_tgt.plen.read() << std::endl; |
---|
| 998 | } |
---|
| 999 | #endif |
---|
| 1000 | cmd_read_fifo_put = true; |
---|
| 1001 | if(p_vci_tgt.cmd.read() == vci_param::CMD_LOCKED_READ) |
---|
| 1002 | m_cpt_ll++; |
---|
| 1003 | else |
---|
| 1004 | m_cpt_read++; |
---|
| 1005 | r_tgt_cmd_fsm = TGT_CMD_IDLE; |
---|
| 1006 | } |
---|
| 1007 | break; |
---|
| 1008 | |
---|
| 1009 | /////////////////// |
---|
| 1010 | case TGT_CMD_WRITE: |
---|
| 1011 | if(p_vci_tgt.cmdval && m_cmd_write_addr_fifo.wok()) |
---|
| 1012 | { |
---|
| 1013 | |
---|
| 1014 | #if DEBUG_MEMC_TGT_CMD |
---|
| 1015 | if(m_debug_tgt_cmd_fsm) |
---|
| 1016 | { |
---|
| 1017 | std::cout << " <MEMC " << name() << ".TGT_CMD_WRITE> Push into write_fifo:" |
---|
| 1018 | << " address = " << std::hex << p_vci_tgt.address.read() |
---|
| 1019 | << " srcid = " << std::dec << p_vci_tgt.srcid.read() |
---|
| 1020 | << " trdid = " << p_vci_tgt.trdid.read() |
---|
| 1021 | << " pktid = " << p_vci_tgt.pktid.read() |
---|
| 1022 | << " wdata = " << std::hex << p_vci_tgt.wdata.read() |
---|
| 1023 | << " be = " << p_vci_tgt.be.read() |
---|
| 1024 | << " plen = " << std::dec << p_vci_tgt.plen.read() << std::endl; |
---|
| 1025 | } |
---|
| 1026 | #endif |
---|
| 1027 | cmd_write_fifo_put = true; |
---|
| 1028 | if(p_vci_tgt.eop) r_tgt_cmd_fsm = TGT_CMD_IDLE; |
---|
| 1029 | } |
---|
| 1030 | break; |
---|
| 1031 | |
---|
| 1032 | //////////////////// |
---|
| 1033 | case TGT_CMD_CAS: |
---|
| 1034 | if((p_vci_tgt.plen.read() != 8) && (p_vci_tgt.plen.read() != 16)) |
---|
| 1035 | { |
---|
| 1036 | std::cout |
---|
| 1037 | << "VCI_MEM_CACHE ERROR " << name() << " TGT_CMD_CAS state" |
---|
| 1038 | << std::endl |
---|
| 1039 | << "illegal format for CAS command " << std::endl; |
---|
| 1040 | |
---|
| 1041 | exit(0); |
---|
| 1042 | } |
---|
| 1043 | |
---|
| 1044 | if(p_vci_tgt.cmdval && m_cmd_cas_addr_fifo.wok()) |
---|
| 1045 | { |
---|
| 1046 | |
---|
| 1047 | #if DEBUG_MEMC_TGT_CMD |
---|
| 1048 | if(m_debug_tgt_cmd_fsm) |
---|
| 1049 | { |
---|
| 1050 | std::cout << " <MEMC " << name() << ".TGT_CMD_CAS> Pushing command into cmd_cas_fifo:" |
---|
| 1051 | << " address = " << std::hex << p_vci_tgt.address.read() |
---|
| 1052 | << " srcid = " << std::dec << p_vci_tgt.srcid.read() |
---|
| 1053 | << " trdid = " << p_vci_tgt.trdid.read() |
---|
| 1054 | << " pktid = " << p_vci_tgt.pktid.read() |
---|
| 1055 | << " wdata = " << std::hex << p_vci_tgt.wdata.read() |
---|
| 1056 | << " be = " << p_vci_tgt.be.read() |
---|
| 1057 | << " plen = " << std::dec << p_vci_tgt.plen.read() << std::endl; |
---|
| 1058 | } |
---|
| 1059 | #endif |
---|
| 1060 | cmd_cas_fifo_put = true; |
---|
| 1061 | if(p_vci_tgt.eop) r_tgt_cmd_fsm = TGT_CMD_IDLE; |
---|
| 1062 | } |
---|
| 1063 | break; |
---|
| 1064 | } // end switch tgt_cmd_fsm |
---|
| 1065 | |
---|
| 1066 | ///////////////////////////////////////////////////////////////////////// |
---|
| 1067 | // MULTI_ACK FSM |
---|
| 1068 | ///////////////////////////////////////////////////////////////////////// |
---|
| 1069 | // This FSM controls the response to the multicast update or multicast |
---|
| 1070 | // inval coherence requests sent by the memory cache to the L1 caches and |
---|
| 1071 | // update the UPT. |
---|
| 1072 | // |
---|
| 1073 | // It can be update or inval requests initiated by the WRITE or CAS FSM, |
---|
| 1074 | // or inval requests initiated by the XRAM_RSP FSM. |
---|
| 1075 | // It can also be a direct request from the WRITE FSM. |
---|
| 1076 | // |
---|
| 1077 | // The FSM decrements the proper entry in UPT. |
---|
| 1078 | // It sends a request to the TGT_RSP FSM to complete the pending |
---|
| 1079 | // write transaction (acknowledge response to the writer processor), |
---|
| 1080 | // and clear the UPT entry when all responses have been received. |
---|
| 1081 | // |
---|
| 1082 | // All those response packets are one flit packet. |
---|
| 1083 | // The index in the Table is defined in the UPDT_TABLE INDEX field, and |
---|
| 1084 | // the transaction type is defined in the UPT entry. |
---|
| 1085 | //////////////////////////////////////////////////////////////////////// |
---|
| 1086 | |
---|
| 1087 | switch(r_multi_ack_fsm.read()) |
---|
| 1088 | { |
---|
| 1089 | case MULTI_ACK_IDLE: |
---|
| 1090 | { |
---|
| 1091 | bool multi_ack_fifo_rok = m_cc_receive_to_multi_ack_fifo.rok(); |
---|
| 1092 | |
---|
| 1093 | // None Multicast Acknowledgement received and |
---|
| 1094 | // none WRITE FSM UPT decrement request |
---|
| 1095 | if( not multi_ack_fifo_rok and |
---|
| 1096 | not r_write_to_multi_ack_req.read()) |
---|
| 1097 | { |
---|
| 1098 | break; |
---|
| 1099 | } |
---|
| 1100 | |
---|
| 1101 | // WRITE FSM request to decrement update table response counter |
---|
| 1102 | // Priority to Multicast Acknowledgement priority |
---|
| 1103 | if(not multi_ack_fifo_rok) |
---|
| 1104 | { |
---|
| 1105 | r_write_to_multi_ack_req = false; |
---|
| 1106 | r_multi_ack_upt_index = r_write_to_multi_ack_upt_index.read(); |
---|
| 1107 | r_multi_ack_fsm = MULTI_ACK_UPT_LOCK; |
---|
| 1108 | |
---|
| 1109 | break; |
---|
| 1110 | } |
---|
| 1111 | |
---|
| 1112 | // Multicast Acknowledgement received |
---|
| 1113 | uint64_t flit = m_cc_receive_to_multi_ack_fifo.read(); |
---|
| 1114 | |
---|
| 1115 | uint8_t updt_index = |
---|
| 1116 | DspinDhccpParam::dspin_get(flit, DspinDhccpParam::MULTI_ACK_UPDT_INDEX); |
---|
| 1117 | |
---|
| 1118 | bool eop = |
---|
| 1119 | (DspinDhccpParam::dspin_get(flit, DspinDhccpParam::FROM_L1_EOP) == 0x1); |
---|
| 1120 | |
---|
[346] | 1121 | if(updt_index >= m_upt.size()) |
---|
[331] | 1122 | { |
---|
| 1123 | std::cout |
---|
| 1124 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1125 | << " MULTI_ACK_IDLE state" << std::endl |
---|
| 1126 | << "index too large for UPT: " |
---|
| 1127 | << std::dec |
---|
| 1128 | << " / UPT index = " << updt_index |
---|
[346] | 1129 | << " / UPT size = " << m_upt.size() |
---|
[331] | 1130 | << std::endl; |
---|
| 1131 | |
---|
| 1132 | exit(0); |
---|
| 1133 | } |
---|
| 1134 | |
---|
| 1135 | if(not eop) |
---|
| 1136 | { |
---|
| 1137 | std::cout |
---|
| 1138 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1139 | << " MULTI_ACK_IDLE state" << std::endl |
---|
| 1140 | << "A Multicast Acknowledgement must be an one flit packet" |
---|
| 1141 | << std::endl; |
---|
| 1142 | |
---|
| 1143 | exit(0); |
---|
| 1144 | } |
---|
| 1145 | |
---|
| 1146 | cc_receive_to_multi_ack_fifo_get = true; |
---|
| 1147 | r_multi_ack_upt_index = updt_index; |
---|
| 1148 | r_multi_ack_fsm = MULTI_ACK_UPT_LOCK; |
---|
| 1149 | |
---|
| 1150 | #if DEBUG_MEMC_MULTI_ACK |
---|
| 1151 | if(m_debug_multi_ack_fsm) |
---|
| 1152 | { |
---|
| 1153 | std::cout |
---|
| 1154 | << " <MEMC " << name() |
---|
| 1155 | << ".MULTI_ACK_IDLE> Response for UPT entry " |
---|
| 1156 | << updt_index |
---|
| 1157 | << std::endl; |
---|
| 1158 | } |
---|
| 1159 | #endif |
---|
| 1160 | break; |
---|
| 1161 | } |
---|
| 1162 | |
---|
| 1163 | case MULTI_ACK_UPT_LOCK: |
---|
| 1164 | { |
---|
| 1165 | // get lock to the UPDATE table |
---|
| 1166 | if(r_alloc_upt_fsm.read() != ALLOC_UPT_MULTI_ACK) break; |
---|
| 1167 | |
---|
| 1168 | // decrement the number of expected responses |
---|
| 1169 | size_t count = 0; |
---|
[346] | 1170 | bool valid = m_upt.decrement(r_multi_ack_upt_index.read(), count); |
---|
[331] | 1171 | |
---|
| 1172 | if(not valid) |
---|
| 1173 | { |
---|
| 1174 | std::cout |
---|
| 1175 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1176 | << " MULTI_ACK_UPT_LOCK state" << std::endl |
---|
| 1177 | << "unsuccessful access to decrement the UPT" |
---|
| 1178 | << std::endl; |
---|
| 1179 | |
---|
| 1180 | exit(0); |
---|
| 1181 | } |
---|
| 1182 | |
---|
| 1183 | if(count == 0) |
---|
| 1184 | { |
---|
| 1185 | r_multi_ack_fsm = MULTI_ACK_UPT_CLEAR; |
---|
| 1186 | } |
---|
| 1187 | else |
---|
| 1188 | { |
---|
| 1189 | r_multi_ack_fsm = MULTI_ACK_IDLE; |
---|
| 1190 | } |
---|
| 1191 | |
---|
| 1192 | #if DEBUG_MEMC_MULTI_ACK |
---|
| 1193 | if(m_debug_multi_ack_fsm) |
---|
| 1194 | { |
---|
| 1195 | std::cout |
---|
| 1196 | << " <MEMC " << name() |
---|
| 1197 | << ".MULTI_ACK_UPT_LOCK> Decrement the responses counter for UPT:" |
---|
| 1198 | << " entry = " << r_multi_ack_upt_index.read() |
---|
| 1199 | << " / rsp_count = " << std::dec << count |
---|
| 1200 | << std::endl; |
---|
| 1201 | } |
---|
| 1202 | #endif |
---|
| 1203 | break; |
---|
| 1204 | } |
---|
| 1205 | |
---|
| 1206 | case MULTI_ACK_UPT_CLEAR: |
---|
| 1207 | { |
---|
| 1208 | if(r_alloc_upt_fsm.read() != ALLOC_UPT_MULTI_ACK) |
---|
| 1209 | { |
---|
| 1210 | std::cout |
---|
| 1211 | << "VCI_MEM_CACHE ERROR " << name() |
---|
[351] | 1212 | << " MULTI_ACK_UPT_CLEAR state" |
---|
[331] | 1213 | << " bad UPT allocation" |
---|
| 1214 | << std::endl; |
---|
| 1215 | |
---|
| 1216 | exit(0); |
---|
| 1217 | } |
---|
| 1218 | |
---|
[346] | 1219 | r_multi_ack_srcid = m_upt.srcid(r_multi_ack_upt_index.read()); |
---|
| 1220 | r_multi_ack_trdid = m_upt.trdid(r_multi_ack_upt_index.read()); |
---|
| 1221 | r_multi_ack_pktid = m_upt.pktid(r_multi_ack_upt_index.read()); |
---|
| 1222 | r_multi_ack_nline = m_upt.nline(r_multi_ack_upt_index.read()); |
---|
| 1223 | bool need_rsp = m_upt.need_rsp(r_multi_ack_upt_index.read()); |
---|
[331] | 1224 | |
---|
| 1225 | // clear the UPT entry |
---|
[346] | 1226 | m_upt.clear(r_multi_ack_upt_index.read()); |
---|
[331] | 1227 | |
---|
| 1228 | if(need_rsp) |
---|
| 1229 | { |
---|
| 1230 | r_multi_ack_fsm = MULTI_ACK_WRITE_RSP; |
---|
| 1231 | } |
---|
| 1232 | else |
---|
| 1233 | { |
---|
| 1234 | r_multi_ack_fsm = MULTI_ACK_IDLE; |
---|
| 1235 | } |
---|
| 1236 | |
---|
| 1237 | #if DEBUG_MEMC_MULTI_ACK |
---|
| 1238 | if(m_debug_multi_ack_fsm) |
---|
| 1239 | { |
---|
| 1240 | std::cout |
---|
| 1241 | << " <MEMC " << name() |
---|
| 1242 | << ".MULTI_ACK_UPT_CLEAR> Clear UPT entry " |
---|
| 1243 | << r_multi_ack_upt_index.read() |
---|
| 1244 | << std::endl; |
---|
| 1245 | } |
---|
| 1246 | #endif |
---|
| 1247 | break; |
---|
| 1248 | } |
---|
| 1249 | |
---|
| 1250 | case MULTI_ACK_WRITE_RSP: |
---|
| 1251 | { |
---|
| 1252 | // Post a request to TGT_RSP FSM |
---|
| 1253 | // Wait if pending request to the TGT_RSP FSM |
---|
| 1254 | if(r_multi_ack_to_tgt_rsp_req.read()) break; |
---|
| 1255 | |
---|
| 1256 | r_multi_ack_to_tgt_rsp_req = true; |
---|
| 1257 | r_multi_ack_to_tgt_rsp_srcid = r_multi_ack_srcid.read(); |
---|
| 1258 | r_multi_ack_to_tgt_rsp_trdid = r_multi_ack_trdid.read(); |
---|
| 1259 | r_multi_ack_to_tgt_rsp_pktid = r_multi_ack_pktid.read(); |
---|
| 1260 | r_multi_ack_fsm = MULTI_ACK_IDLE; |
---|
| 1261 | |
---|
| 1262 | #if DEBUG_MEMC_MULTI_ACK |
---|
| 1263 | if(m_debug_multi_ack_fsm) |
---|
| 1264 | { |
---|
| 1265 | std::cout |
---|
| 1266 | << " <MEMC " << name() |
---|
| 1267 | << ".MULTI_ACK_WRITE_RSP> Request TGT_RSP FSM to send a response to srcid " |
---|
| 1268 | << r_multi_ack_srcid.read() |
---|
| 1269 | << std::endl; |
---|
| 1270 | } |
---|
| 1271 | #endif |
---|
| 1272 | break; |
---|
| 1273 | } |
---|
| 1274 | } // end switch r_multi_ack_fsm |
---|
| 1275 | |
---|
| 1276 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1277 | // READ FSM |
---|
| 1278 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1279 | // The READ FSM controls the VCI read and ll requests. |
---|
| 1280 | // It takes the lock protecting the cache directory to check the cache line status: |
---|
| 1281 | // - In case of HIT |
---|
| 1282 | // The fsm copies the data (one line, or one single word) |
---|
| 1283 | // in the r_read_to_tgt_rsp buffer. It waits if this buffer is not empty. |
---|
| 1284 | // The requesting initiator is registered in the cache directory. |
---|
| 1285 | // If the number of copy is larger than 1, the new copy is registered |
---|
| 1286 | // in the HEAP. |
---|
| 1287 | // If the number of copy is larger than the threshold, the HEAP is cleared, |
---|
| 1288 | // and the corresponding line switches to the counter mode. |
---|
| 1289 | // - In case of MISS |
---|
| 1290 | // The READ fsm takes the lock protecting the transaction tab. |
---|
| 1291 | // If a read transaction to the XRAM for this line already exists, |
---|
| 1292 | // or if the transaction tab is full, the fsm is stalled. |
---|
| 1293 | // If a TRT entry is free, the READ request is registered in TRT, |
---|
| 1294 | // it is consumed in the request FIFO, and transmited to the IXR_CMD FSM. |
---|
| 1295 | // The READ FSM returns in the IDLE state as the read transaction will be |
---|
| 1296 | // completed when the missing line will be received. |
---|
| 1297 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1298 | |
---|
| 1299 | switch(r_read_fsm.read()) |
---|
| 1300 | { |
---|
| 1301 | /////////////// |
---|
| 1302 | case READ_IDLE: |
---|
| 1303 | // waiting a read request |
---|
| 1304 | { |
---|
| 1305 | if(m_cmd_read_addr_fifo.rok()) |
---|
| 1306 | { |
---|
| 1307 | |
---|
| 1308 | #if DEBUG_MEMC_READ |
---|
| 1309 | if(m_debug_read_fsm) |
---|
| 1310 | { |
---|
| 1311 | std::cout << " <MEMC " << name() << ".READ_IDLE> Read request:" |
---|
| 1312 | << " srcid = " << std::dec << m_cmd_read_srcid_fifo.read() |
---|
| 1313 | << " / address = " << std::hex << m_cmd_read_addr_fifo.read() |
---|
| 1314 | << " / pktid = " << std::hex << m_cmd_read_pktid_fifo.read() |
---|
| 1315 | << " / nwords = " << std::dec << m_cmd_read_length_fifo.read() << std::endl; |
---|
| 1316 | } |
---|
| 1317 | #endif |
---|
| 1318 | r_read_fsm = READ_DIR_REQ; |
---|
| 1319 | } |
---|
| 1320 | break; |
---|
| 1321 | } |
---|
| 1322 | |
---|
| 1323 | /////////////////// |
---|
| 1324 | case READ_DIR_REQ: |
---|
| 1325 | // Get the lock to the directory |
---|
| 1326 | { |
---|
| 1327 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_READ) |
---|
| 1328 | { |
---|
| 1329 | r_read_fsm = READ_DIR_LOCK; |
---|
| 1330 | } |
---|
| 1331 | |
---|
| 1332 | #if DEBUG_MEMC_READ |
---|
| 1333 | if(m_debug_read_fsm) |
---|
| 1334 | { |
---|
| 1335 | std::cout |
---|
| 1336 | << " <MEMC " << name() << ".READ_DIR_REQ> Requesting DIR lock " |
---|
| 1337 | << std::endl; |
---|
| 1338 | } |
---|
| 1339 | #endif |
---|
| 1340 | break; |
---|
| 1341 | } |
---|
| 1342 | |
---|
| 1343 | /////////////////// |
---|
| 1344 | case READ_DIR_LOCK: |
---|
| 1345 | // check directory for hit / miss |
---|
| 1346 | { |
---|
| 1347 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_READ) |
---|
| 1348 | { |
---|
| 1349 | size_t way = 0; |
---|
| 1350 | DirectoryEntry entry = |
---|
| 1351 | m_cache_directory.read(m_cmd_read_addr_fifo.read(), way); |
---|
| 1352 | if((m_cmd_read_pktid_fifo.read() & 0x7) == TYPE_LL) // access the global table ONLY when we have an LL cmd |
---|
| 1353 | { |
---|
| 1354 | r_read_ll_key = m_llsc_table.ll(m_cmd_read_addr_fifo.read()); |
---|
| 1355 | } |
---|
| 1356 | r_read_is_cnt = entry.is_cnt; |
---|
| 1357 | r_read_dirty = entry.dirty; |
---|
| 1358 | r_read_lock = entry.lock; |
---|
| 1359 | r_read_tag = entry.tag; |
---|
| 1360 | r_read_way = way; |
---|
| 1361 | r_read_count = entry.count; |
---|
| 1362 | r_read_copy = entry.owner.srcid; |
---|
| 1363 | |
---|
| 1364 | #if L1_MULTI_CACHE |
---|
| 1365 | r_read_copy_cache = entry.owner.cache_id; |
---|
| 1366 | #endif |
---|
| 1367 | r_read_copy_inst = entry.owner.inst; |
---|
| 1368 | r_read_ptr = entry.ptr; // pointer to the heap |
---|
| 1369 | |
---|
| 1370 | // check if this is a cached read, this means pktid is either |
---|
| 1371 | // TYPE_READ_DATA_MISS 0bX001 with TSAR encoding |
---|
| 1372 | // TYPE_READ_INS_MISS 0bX011 with TSAR encoding |
---|
| 1373 | bool cached_read = (m_cmd_read_pktid_fifo.read() & 0x1); |
---|
| 1374 | if(entry.valid) // hit |
---|
| 1375 | { |
---|
| 1376 | // test if we need to register a new copy in the heap |
---|
| 1377 | if(entry.is_cnt || (entry.count == 0) || !cached_read) |
---|
| 1378 | { |
---|
| 1379 | r_read_fsm = READ_DIR_HIT; |
---|
| 1380 | } |
---|
| 1381 | else |
---|
| 1382 | { |
---|
| 1383 | r_read_fsm = READ_HEAP_REQ; |
---|
| 1384 | } |
---|
| 1385 | } |
---|
| 1386 | else // miss |
---|
| 1387 | { |
---|
| 1388 | r_read_fsm = READ_TRT_LOCK; |
---|
| 1389 | } |
---|
| 1390 | |
---|
| 1391 | #if DEBUG_MEMC_READ |
---|
| 1392 | if(m_debug_read_fsm) |
---|
| 1393 | { |
---|
| 1394 | std::cout |
---|
| 1395 | << " <MEMC " << name() << ".READ_DIR_LOCK> Accessing directory: " |
---|
| 1396 | << " address = " << std::hex << m_cmd_read_addr_fifo.read() |
---|
| 1397 | << " / hit = " << std::dec << entry.valid |
---|
| 1398 | << " / count = " <<std::dec << entry.count |
---|
| 1399 | << " / is_cnt = " << entry.is_cnt << std::endl; |
---|
| 1400 | if((m_cmd_read_pktid_fifo.read() & 0x7) == TYPE_LL) |
---|
| 1401 | { |
---|
| 1402 | std::cout |
---|
| 1403 | << " <MEMC " << name() << ".READ_DIR_LOCK> global_llsc_table LL access" << std::endl; |
---|
| 1404 | } |
---|
| 1405 | } |
---|
| 1406 | #endif |
---|
| 1407 | } |
---|
| 1408 | else |
---|
| 1409 | { |
---|
| 1410 | std::cout |
---|
| 1411 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1412 | << " READ_DIR_LOCK state" << std::endl |
---|
| 1413 | << "Bad DIR allocation" << std::endl; |
---|
| 1414 | |
---|
| 1415 | exit(0); |
---|
| 1416 | } |
---|
| 1417 | break; |
---|
| 1418 | } |
---|
| 1419 | |
---|
| 1420 | ////////////////// |
---|
| 1421 | case READ_DIR_HIT: |
---|
| 1422 | { |
---|
| 1423 | // read data in cache & update the directory |
---|
| 1424 | // we enter this state in 3 cases: |
---|
| 1425 | // - the read request is uncachable |
---|
| 1426 | // - the cache line is in counter mode |
---|
| 1427 | // - the cache line is valid but not replcated |
---|
| 1428 | |
---|
| 1429 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_READ) |
---|
| 1430 | { |
---|
| 1431 | // signals generation |
---|
| 1432 | // check if this is an instruction read, this means pktid is either |
---|
| 1433 | // TYPE_READ_INS_UNC 0bX010 with TSAR encoding |
---|
| 1434 | // TYPE_READ_INS_MISS 0bX011 with TSAR encoding |
---|
[338] | 1435 | bool inst_read = ((m_cmd_read_pktid_fifo.read() & 0x2) != 0); |
---|
[331] | 1436 | // check if this is a cached read, this means pktid is either |
---|
| 1437 | // TYPE_READ_DATA_MISS 0bX001 with TSAR encoding |
---|
| 1438 | // TYPE_READ_INS_MISS 0bX011 with TSAR encoding |
---|
| 1439 | bool cached_read = (m_cmd_read_pktid_fifo.read() & 0x1); |
---|
| 1440 | bool is_cnt = r_read_is_cnt.read(); |
---|
| 1441 | |
---|
| 1442 | // read data in the cache |
---|
| 1443 | size_t set = m_y[(vci_addr_t)(m_cmd_read_addr_fifo.read())]; |
---|
| 1444 | size_t way = r_read_way.read(); |
---|
| 1445 | |
---|
| 1446 | m_cache_data.read_line(way, set, r_read_data); |
---|
| 1447 | |
---|
| 1448 | // update the cache directory |
---|
| 1449 | DirectoryEntry entry; |
---|
| 1450 | entry.valid = true; |
---|
| 1451 | entry.is_cnt = is_cnt; |
---|
| 1452 | entry.dirty = r_read_dirty.read(); |
---|
| 1453 | entry.tag = r_read_tag.read(); |
---|
| 1454 | entry.lock = r_read_lock.read(); |
---|
| 1455 | entry.ptr = r_read_ptr.read(); |
---|
| 1456 | if(cached_read) // Cached read => we must update the copies |
---|
| 1457 | { |
---|
| 1458 | if(!is_cnt) // Not counter mode |
---|
| 1459 | { |
---|
| 1460 | entry.owner.srcid = m_cmd_read_srcid_fifo.read(); |
---|
| 1461 | #if L1_MULTI_CACHE |
---|
| 1462 | entry.owner.cache_id = m_cmd_read_pktid_fifo.read(); |
---|
| 1463 | #endif |
---|
| 1464 | entry.owner.inst = inst_read; |
---|
| 1465 | entry.count = r_read_count.read() + 1; |
---|
| 1466 | } |
---|
| 1467 | else // Counter mode |
---|
| 1468 | { |
---|
| 1469 | entry.owner.srcid = 0; |
---|
| 1470 | #if L1_MULTI_CACHE |
---|
| 1471 | entry.owner.cache_id = 0; |
---|
| 1472 | #endif |
---|
| 1473 | entry.owner.inst = false; |
---|
| 1474 | entry.count = r_read_count.read() + 1; |
---|
| 1475 | } |
---|
| 1476 | } |
---|
| 1477 | else // Uncached read |
---|
| 1478 | { |
---|
| 1479 | entry.owner.srcid = r_read_copy.read(); |
---|
| 1480 | #if L1_MULTI_CACHE |
---|
| 1481 | entry.owner.cache_id = r_read_copy_cache.read(); |
---|
| 1482 | #endif |
---|
| 1483 | entry.owner.inst = r_read_copy_inst.read(); |
---|
| 1484 | entry.count = r_read_count.read(); |
---|
| 1485 | } |
---|
| 1486 | |
---|
| 1487 | #if DEBUG_MEMC_READ |
---|
| 1488 | if(m_debug_read_fsm) |
---|
| 1489 | { |
---|
| 1490 | std::cout |
---|
| 1491 | << " <MEMC " << name() << ".READ_DIR_HIT> Update directory entry:" |
---|
[338] | 1492 | << " addr = " << std::hex << m_cmd_read_addr_fifo.read() |
---|
| 1493 | << " / set = " << std::dec << set |
---|
[331] | 1494 | << " / way = " << way |
---|
| 1495 | << " / owner_id = " << entry.owner.srcid |
---|
| 1496 | << " / owner_ins = " << entry.owner.inst |
---|
| 1497 | << " / count = " << entry.count |
---|
| 1498 | << " / is_cnt = " << entry.is_cnt << std::endl; |
---|
| 1499 | } |
---|
| 1500 | #endif |
---|
[338] | 1501 | /**/ |
---|
| 1502 | if(m_monitor_ok) |
---|
| 1503 | { |
---|
| 1504 | char buf[80]; |
---|
| 1505 | snprintf(buf, 80, "READ_DIR_HIT srcid %d, ins %d", m_cmd_read_srcid_fifo.read(), ((m_cmd_read_pktid_fifo.read()&0x2)!=0)); |
---|
| 1506 | check_monitor_read(buf, m_cmd_read_addr_fifo.read()); |
---|
| 1507 | } |
---|
| 1508 | /**/ |
---|
[331] | 1509 | |
---|
| 1510 | m_cache_directory.write(set, way, entry); |
---|
| 1511 | r_read_fsm = READ_RSP; |
---|
| 1512 | } |
---|
| 1513 | break; |
---|
| 1514 | } |
---|
| 1515 | |
---|
| 1516 | //////////////////// |
---|
| 1517 | case READ_HEAP_REQ: |
---|
| 1518 | // Get the lock to the HEAP directory |
---|
| 1519 | { |
---|
[338] | 1520 | /**/ |
---|
| 1521 | if(m_monitor_ok) |
---|
| 1522 | { |
---|
| 1523 | char buf[80]; |
---|
| 1524 | snprintf(buf, 80, "READ_HEAP_REQ srcid %d, ins %d", m_cmd_read_srcid_fifo.read(), ((m_cmd_read_pktid_fifo.read()&0x2)!=0)); |
---|
| 1525 | check_monitor_read(buf, m_cmd_read_addr_fifo.read()); |
---|
| 1526 | } |
---|
| 1527 | /**/ |
---|
[331] | 1528 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_READ) |
---|
| 1529 | { |
---|
| 1530 | r_read_fsm = READ_HEAP_LOCK; |
---|
| 1531 | } |
---|
| 1532 | |
---|
| 1533 | #if DEBUG_MEMC_READ |
---|
| 1534 | if(m_debug_read_fsm) |
---|
| 1535 | { |
---|
| 1536 | std::cout |
---|
| 1537 | << " <MEMC " << name() << ".READ_HEAP_REQ> Requesting HEAP lock " |
---|
| 1538 | << std::endl; |
---|
| 1539 | } |
---|
| 1540 | #endif |
---|
| 1541 | break; |
---|
| 1542 | } |
---|
| 1543 | |
---|
| 1544 | //////////////////// |
---|
| 1545 | case READ_HEAP_LOCK: |
---|
| 1546 | // read data in cache, update the directory |
---|
| 1547 | // and prepare the HEAP update |
---|
| 1548 | { |
---|
| 1549 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_READ) |
---|
| 1550 | { |
---|
| 1551 | // enter counter mode when we reach the limit of copies or the heap is full |
---|
[346] | 1552 | bool go_cnt = (r_read_count.read() >= m_max_copies) || m_heap.is_full(); |
---|
[331] | 1553 | |
---|
| 1554 | // read data in the cache |
---|
| 1555 | size_t set = m_y[(vci_addr_t)(m_cmd_read_addr_fifo.read())]; |
---|
| 1556 | size_t way = r_read_way.read(); |
---|
| 1557 | |
---|
| 1558 | m_cache_data.read_line(way, set, r_read_data); |
---|
| 1559 | |
---|
| 1560 | // update the cache directory |
---|
| 1561 | DirectoryEntry entry; |
---|
| 1562 | entry.valid = true; |
---|
| 1563 | entry.is_cnt = go_cnt; |
---|
| 1564 | entry.dirty = r_read_dirty.read(); |
---|
| 1565 | entry.tag = r_read_tag.read(); |
---|
| 1566 | entry.lock = r_read_lock.read(); |
---|
| 1567 | entry.count = r_read_count.read() + 1; |
---|
| 1568 | |
---|
| 1569 | if(not go_cnt) // Not entering counter mode |
---|
| 1570 | { |
---|
| 1571 | entry.owner.srcid = r_read_copy.read(); |
---|
| 1572 | #if L1_MULTI_CACHE |
---|
| 1573 | entry.owner.cache_id = r_read_copy_cache.read(); |
---|
| 1574 | #endif |
---|
| 1575 | entry.owner.inst = r_read_copy_inst.read(); |
---|
| 1576 | entry.ptr = m_heap.next_free_ptr(); // set pointer on the heap |
---|
| 1577 | } |
---|
| 1578 | else // Entering Counter mode |
---|
| 1579 | { |
---|
| 1580 | entry.owner.srcid = 0; |
---|
| 1581 | #if L1_MULTI_CACHE |
---|
| 1582 | entry.owner.cache_id = 0; |
---|
| 1583 | #endif |
---|
| 1584 | entry.owner.inst = false; |
---|
| 1585 | entry.ptr = 0; |
---|
| 1586 | } |
---|
| 1587 | |
---|
| 1588 | m_cache_directory.write(set, way, entry); |
---|
| 1589 | |
---|
| 1590 | // prepare the heap update (add an entry, or clear the linked list) |
---|
| 1591 | if(not go_cnt) // not switching to counter mode |
---|
| 1592 | { |
---|
| 1593 | // We test if the next free entry in the heap is the last |
---|
| 1594 | HeapEntry heap_entry = m_heap.next_free_entry(); |
---|
| 1595 | r_read_next_ptr = heap_entry.next; |
---|
| 1596 | r_read_last_free = (heap_entry.next == m_heap.next_free_ptr()); |
---|
| 1597 | |
---|
| 1598 | r_read_fsm = READ_HEAP_WRITE; // add an entry in the HEAP |
---|
| 1599 | } |
---|
| 1600 | else // switching to counter mode |
---|
| 1601 | { |
---|
| 1602 | if(r_read_count.read() >1) // heap must be cleared |
---|
| 1603 | { |
---|
| 1604 | HeapEntry next_entry = m_heap.read(r_read_ptr.read()); |
---|
| 1605 | r_read_next_ptr = m_heap.next_free_ptr(); |
---|
| 1606 | m_heap.write_free_ptr(r_read_ptr.read()); |
---|
| 1607 | |
---|
| 1608 | if(next_entry.next == r_read_ptr.read()) // last entry |
---|
| 1609 | { |
---|
| 1610 | r_read_fsm = READ_HEAP_LAST; // erase the entry |
---|
| 1611 | } |
---|
| 1612 | else // not the last entry |
---|
| 1613 | { |
---|
| 1614 | r_read_ptr = next_entry.next; |
---|
| 1615 | r_read_fsm = READ_HEAP_ERASE; // erase the list |
---|
| 1616 | } |
---|
| 1617 | } |
---|
| 1618 | else // the heap is not used / nothing to do |
---|
| 1619 | { |
---|
| 1620 | r_read_fsm = READ_RSP; |
---|
| 1621 | } |
---|
| 1622 | } |
---|
| 1623 | |
---|
| 1624 | #if DEBUG_MEMC_READ |
---|
| 1625 | if(m_debug_read_fsm) |
---|
| 1626 | { |
---|
| 1627 | std::cout << " <MEMC " << name() << ".READ_HEAP_LOCK> Update directory:" |
---|
| 1628 | << " tag = " << std::hex << entry.tag |
---|
| 1629 | << " set = " << std::dec << set |
---|
| 1630 | << " way = " << way |
---|
| 1631 | << " count = " << entry.count |
---|
| 1632 | << " is_cnt = " << entry.is_cnt << std::endl; |
---|
| 1633 | } |
---|
| 1634 | #endif |
---|
| 1635 | } |
---|
| 1636 | else |
---|
| 1637 | { |
---|
| 1638 | std::cout |
---|
| 1639 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1640 | << " READ_HEAP_LOCK state" << std::endl |
---|
| 1641 | << "Bad HEAP allocation" << std::endl; |
---|
| 1642 | |
---|
| 1643 | exit(0); |
---|
| 1644 | } |
---|
| 1645 | |
---|
| 1646 | break; |
---|
| 1647 | } |
---|
| 1648 | |
---|
| 1649 | ///////////////////// |
---|
| 1650 | case READ_HEAP_WRITE: // add a entry in the heap |
---|
| 1651 | { |
---|
| 1652 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_READ) |
---|
| 1653 | { |
---|
| 1654 | HeapEntry heap_entry; |
---|
| 1655 | heap_entry.owner.srcid = m_cmd_read_srcid_fifo.read(); |
---|
| 1656 | #if L1_MULTI_CACHE |
---|
| 1657 | heap_entry.owner.cache_id = m_cmd_read_pktid_fifo.read(); |
---|
| 1658 | #endif |
---|
[338] | 1659 | heap_entry.owner.inst = ((m_cmd_read_pktid_fifo.read() & 0x2) != 0); |
---|
[331] | 1660 | |
---|
| 1661 | if(r_read_count.read() == 1) // creation of a new linked list |
---|
| 1662 | { |
---|
| 1663 | heap_entry.next = m_heap.next_free_ptr(); |
---|
| 1664 | } |
---|
| 1665 | else // head insertion in existing list |
---|
| 1666 | { |
---|
| 1667 | heap_entry.next = r_read_ptr.read(); |
---|
| 1668 | } |
---|
| 1669 | m_heap.write_free_entry(heap_entry); |
---|
| 1670 | m_heap.write_free_ptr(r_read_next_ptr.read()); |
---|
| 1671 | if(r_read_last_free.read()) m_heap.set_full(); |
---|
| 1672 | |
---|
| 1673 | r_read_fsm = READ_RSP; |
---|
| 1674 | |
---|
| 1675 | #if DEBUG_MEMC_READ |
---|
| 1676 | if(m_debug_read_fsm) |
---|
| 1677 | { |
---|
| 1678 | std::cout |
---|
| 1679 | << " <MEMC " << name() << ".READ_HEAP_WRITE> Add an entry in the heap:" |
---|
| 1680 | << " owner_id = " << heap_entry.owner.srcid |
---|
| 1681 | << " owner_ins = " << heap_entry.owner.inst << std::endl; |
---|
| 1682 | } |
---|
| 1683 | #endif |
---|
| 1684 | } |
---|
| 1685 | else |
---|
| 1686 | { |
---|
| 1687 | std::cout |
---|
| 1688 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1689 | << " READ_HEAP_WRITE state" << std::endl |
---|
| 1690 | << "Bad HEAP allocation" << std::endl; |
---|
| 1691 | |
---|
| 1692 | exit(0); |
---|
| 1693 | } |
---|
| 1694 | break; |
---|
| 1695 | } |
---|
| 1696 | |
---|
| 1697 | ///////////////////// |
---|
| 1698 | case READ_HEAP_ERASE: |
---|
| 1699 | { |
---|
| 1700 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_READ) |
---|
| 1701 | { |
---|
| 1702 | HeapEntry next_entry = m_heap.read(r_read_ptr.read()); |
---|
| 1703 | if(next_entry.next == r_read_ptr.read()) |
---|
| 1704 | { |
---|
| 1705 | r_read_fsm = READ_HEAP_LAST; |
---|
| 1706 | } |
---|
| 1707 | else |
---|
| 1708 | { |
---|
| 1709 | r_read_ptr = next_entry.next; |
---|
| 1710 | r_read_fsm = READ_HEAP_ERASE; |
---|
| 1711 | } |
---|
| 1712 | } |
---|
| 1713 | else |
---|
| 1714 | { |
---|
| 1715 | std::cout |
---|
| 1716 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1717 | << " READ_HEAP_ERASE state" << std::endl |
---|
| 1718 | << "Bad HEAP allocation" << std::endl; |
---|
| 1719 | |
---|
| 1720 | exit(0); |
---|
| 1721 | } |
---|
| 1722 | break; |
---|
| 1723 | } |
---|
| 1724 | |
---|
| 1725 | //////////////////// |
---|
| 1726 | case READ_HEAP_LAST: |
---|
| 1727 | { |
---|
| 1728 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_READ) |
---|
| 1729 | { |
---|
| 1730 | HeapEntry last_entry; |
---|
| 1731 | last_entry.owner.srcid = 0; |
---|
| 1732 | #if L1_MULTI_CACHE |
---|
| 1733 | last_entry.owner.cache_id = 0; |
---|
| 1734 | #endif |
---|
| 1735 | last_entry.owner.inst = false; |
---|
| 1736 | |
---|
| 1737 | if(m_heap.is_full()) |
---|
| 1738 | { |
---|
| 1739 | last_entry.next = r_read_ptr.read(); |
---|
| 1740 | m_heap.unset_full(); |
---|
| 1741 | } |
---|
| 1742 | else |
---|
| 1743 | { |
---|
| 1744 | last_entry.next = r_read_next_ptr.read(); |
---|
| 1745 | } |
---|
| 1746 | m_heap.write(r_read_ptr.read(),last_entry); |
---|
| 1747 | r_read_fsm = READ_RSP; |
---|
| 1748 | } |
---|
| 1749 | else |
---|
| 1750 | { |
---|
| 1751 | std::cout << "VCI_MEM_CACHE ERROR " << name() |
---|
| 1752 | << " READ_HEAP_LAST state" << std::endl; |
---|
| 1753 | std::cout << "Bad HEAP allocation" << std::endl; |
---|
| 1754 | exit(0); |
---|
| 1755 | } |
---|
| 1756 | break; |
---|
| 1757 | } |
---|
| 1758 | |
---|
| 1759 | ////////////// |
---|
| 1760 | case READ_RSP: // request the TGT_RSP FSM to return data |
---|
| 1761 | { |
---|
| 1762 | if(!r_read_to_tgt_rsp_req) |
---|
| 1763 | { |
---|
| 1764 | for(size_t i=0 ; i<m_words ; i++) r_read_to_tgt_rsp_data[i] = r_read_data[i]; |
---|
| 1765 | r_read_to_tgt_rsp_word = m_x[(vci_addr_t) m_cmd_read_addr_fifo.read()]; |
---|
| 1766 | r_read_to_tgt_rsp_length = m_cmd_read_length_fifo.read(); |
---|
| 1767 | r_read_to_tgt_rsp_srcid = m_cmd_read_srcid_fifo.read(); |
---|
| 1768 | r_read_to_tgt_rsp_trdid = m_cmd_read_trdid_fifo.read(); |
---|
| 1769 | r_read_to_tgt_rsp_pktid = m_cmd_read_pktid_fifo.read(); |
---|
| 1770 | r_read_to_tgt_rsp_ll_key = r_read_ll_key.read(); |
---|
| 1771 | cmd_read_fifo_get = true; |
---|
| 1772 | r_read_to_tgt_rsp_req = true; |
---|
| 1773 | r_read_fsm = READ_IDLE; |
---|
| 1774 | |
---|
| 1775 | #if DEBUG_MEMC_READ |
---|
| 1776 | if(m_debug_read_fsm) |
---|
| 1777 | { |
---|
| 1778 | std::cout << " <MEMC " << name() << ".READ_RSP> Request the TGT_RSP FSM to return data:" |
---|
| 1779 | << " rsrcid = " << std::dec << m_cmd_read_srcid_fifo.read() |
---|
| 1780 | << " / address = " << std::hex << m_cmd_read_addr_fifo.read() |
---|
| 1781 | << " / nwords = " << std::dec << m_cmd_read_length_fifo.read() << std::endl; |
---|
| 1782 | } |
---|
| 1783 | #endif |
---|
| 1784 | } |
---|
| 1785 | break; |
---|
| 1786 | } |
---|
| 1787 | |
---|
| 1788 | /////////////////// |
---|
| 1789 | case READ_TRT_LOCK: // read miss : check the Transaction Table |
---|
| 1790 | { |
---|
| 1791 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_READ) |
---|
| 1792 | { |
---|
| 1793 | size_t index = 0; |
---|
| 1794 | vci_addr_t addr = (vci_addr_t) m_cmd_read_addr_fifo.read(); |
---|
[346] | 1795 | bool hit_read = m_trt.hit_read(m_nline[addr], index); |
---|
| 1796 | bool hit_write = m_trt.hit_write(m_nline[addr]); |
---|
| 1797 | bool wok = !m_trt.full(index); |
---|
[331] | 1798 | |
---|
| 1799 | if(hit_read || !wok || hit_write) // missing line already requested or no space |
---|
| 1800 | { |
---|
| 1801 | if(!wok) m_cpt_trt_full++; |
---|
| 1802 | if(hit_read || hit_write) m_cpt_trt_rb++; |
---|
| 1803 | r_read_fsm = READ_IDLE; |
---|
| 1804 | } |
---|
| 1805 | else // missing line is requested to the XRAM |
---|
| 1806 | { |
---|
| 1807 | m_cpt_read_miss++; |
---|
| 1808 | r_read_trt_index = index; |
---|
| 1809 | r_read_fsm = READ_TRT_SET; |
---|
| 1810 | } |
---|
| 1811 | |
---|
| 1812 | #if DEBUG_MEMC_READ |
---|
| 1813 | if(m_debug_read_fsm) |
---|
| 1814 | { |
---|
| 1815 | std::cout << " <MEMC " << name() << ".READ_TRT_LOCK> Check TRT:" |
---|
| 1816 | << " hit_read = " << hit_read |
---|
| 1817 | << " / hit_write = " << hit_write |
---|
| 1818 | << " / full = " << !wok << std::endl; |
---|
| 1819 | } |
---|
| 1820 | #endif |
---|
| 1821 | } |
---|
| 1822 | break; |
---|
| 1823 | } |
---|
| 1824 | |
---|
| 1825 | ////////////////// |
---|
| 1826 | case READ_TRT_SET: // register get transaction in TRT |
---|
| 1827 | { |
---|
| 1828 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_READ) |
---|
| 1829 | { |
---|
[346] | 1830 | m_trt.set(r_read_trt_index.read(), |
---|
[331] | 1831 | true, |
---|
| 1832 | m_nline[(vci_addr_t)(m_cmd_read_addr_fifo.read())], |
---|
| 1833 | m_cmd_read_srcid_fifo.read(), |
---|
| 1834 | m_cmd_read_trdid_fifo.read(), |
---|
| 1835 | m_cmd_read_pktid_fifo.read(), |
---|
| 1836 | true, |
---|
| 1837 | m_cmd_read_length_fifo.read(), |
---|
| 1838 | m_x[(vci_addr_t)(m_cmd_read_addr_fifo.read())], |
---|
| 1839 | std::vector<be_t> (m_words,0), |
---|
| 1840 | std::vector<data_t> (m_words,0), |
---|
| 1841 | r_read_ll_key.read()); |
---|
| 1842 | #if DEBUG_MEMC_READ |
---|
| 1843 | if(m_debug_read_fsm) |
---|
| 1844 | { |
---|
| 1845 | std::cout << " <MEMC " << name() << ".READ_TRT_SET> Write in Transaction Table: " << std::hex |
---|
| 1846 | << " address = " << std::hex << m_cmd_read_addr_fifo.read() |
---|
| 1847 | << " / srcid = " << std::dec << m_cmd_read_srcid_fifo.read() |
---|
| 1848 | << std::endl; |
---|
| 1849 | } |
---|
| 1850 | #endif |
---|
| 1851 | r_read_fsm = READ_TRT_REQ; |
---|
| 1852 | } |
---|
| 1853 | break; |
---|
| 1854 | } |
---|
| 1855 | |
---|
| 1856 | ////////////////// |
---|
| 1857 | case READ_TRT_REQ: |
---|
| 1858 | { |
---|
| 1859 | // consume the read request in the FIFO, |
---|
| 1860 | // and send it to the ixr_cmd_fsm |
---|
| 1861 | |
---|
| 1862 | if(not r_read_to_ixr_cmd_req) |
---|
| 1863 | { |
---|
| 1864 | cmd_read_fifo_get = true; |
---|
| 1865 | r_read_to_ixr_cmd_req = true; |
---|
| 1866 | r_read_to_ixr_cmd_nline = m_nline[(vci_addr_t)(m_cmd_read_addr_fifo.read())]; |
---|
| 1867 | r_read_to_ixr_cmd_trdid = r_read_trt_index.read(); |
---|
| 1868 | r_read_fsm = READ_IDLE; |
---|
| 1869 | |
---|
| 1870 | #if DEBUG_MEMC_READ |
---|
| 1871 | if(m_debug_read_fsm) |
---|
| 1872 | { |
---|
| 1873 | std::cout |
---|
| 1874 | << " <MEMC " << name() << ".READ_TRT_REQ> Request GET transaction for address " |
---|
| 1875 | << std::hex << m_cmd_read_addr_fifo.read() << std::endl; |
---|
| 1876 | } |
---|
| 1877 | #endif |
---|
| 1878 | } |
---|
| 1879 | break; |
---|
| 1880 | } |
---|
| 1881 | } // end switch read_fsm |
---|
| 1882 | |
---|
| 1883 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 1884 | // WRITE FSM |
---|
| 1885 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 1886 | // The WRITE FSM handles the write bursts and sc requests sent by the processors. |
---|
| 1887 | // All addresses in a burst must be in the same cache line. |
---|
| 1888 | // A complete write burst is consumed in the FIFO & copied to a local buffer. |
---|
| 1889 | // Then the FSM takes the lock protecting the cache directory, to check |
---|
| 1890 | // if the line is in the cache. |
---|
| 1891 | // |
---|
| 1892 | // - In case of HIT, the cache is updated. |
---|
| 1893 | // If there is no other copy, an acknowledge response is immediately |
---|
| 1894 | // returned to the writing processor. |
---|
| 1895 | // If the data is cached by other processors, a coherence transaction must |
---|
| 1896 | // be launched (sc requests always require a coherence transaction): |
---|
| 1897 | // It is a multicast update if the line is not in counter mode, and the processor |
---|
| 1898 | // takes the lock protecting the Update Table (UPT) to register this transaction. |
---|
| 1899 | // It is a broadcast invalidate if the line is in counter mode. |
---|
| 1900 | // If the UPT is full, it releases the lock(s) and retry. Then, it sends |
---|
| 1901 | // a multi-update request to all owners of the line (but the writer), |
---|
| 1902 | // through the CC_SEND FSM. In case of coherence transaction, the WRITE FSM |
---|
| 1903 | // does not respond to the writing processor, as this response will be sent by |
---|
| 1904 | // the MULTI_ACK FSM when all update responses have been received. |
---|
| 1905 | // |
---|
| 1906 | // - In case of MISS, the WRITE FSM takes the lock protecting the transaction |
---|
| 1907 | // table (TRT). If a read transaction to the XRAM for this line already exists, |
---|
| 1908 | // it writes in the TRT (write buffer). Otherwise, if a TRT entry is free, |
---|
| 1909 | // the WRITE FSM register a new transaction in TRT, and sends a read line request |
---|
| 1910 | // to the XRAM. If the TRT is full, it releases the lock, and waits. |
---|
| 1911 | // Finally, the WRITE FSM returns an aknowledge response to the writing processor. |
---|
| 1912 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1913 | |
---|
| 1914 | switch(r_write_fsm.read()) |
---|
| 1915 | { |
---|
| 1916 | //////////////// |
---|
| 1917 | case WRITE_IDLE: // copy first word of a write burst in local buffer |
---|
| 1918 | { |
---|
| 1919 | if(m_cmd_write_addr_fifo.rok()) |
---|
| 1920 | { |
---|
| 1921 | if((m_cmd_write_pktid_fifo.read() & 0x7) == TYPE_SC) |
---|
| 1922 | m_cpt_sc++; |
---|
| 1923 | else |
---|
| 1924 | { |
---|
| 1925 | m_cpt_write++; |
---|
| 1926 | m_cpt_write_cells++; |
---|
| 1927 | } |
---|
| 1928 | |
---|
| 1929 | // consume a word in the FIFO & write it in the local buffer |
---|
| 1930 | cmd_write_fifo_get = true; |
---|
| 1931 | size_t index = m_x[(vci_addr_t)(m_cmd_write_addr_fifo.read())]; |
---|
| 1932 | |
---|
| 1933 | r_write_address = (addr_t)(m_cmd_write_addr_fifo.read()); |
---|
| 1934 | r_write_word_index = index; |
---|
| 1935 | r_write_word_count = 1; |
---|
| 1936 | r_write_data[index] = m_cmd_write_data_fifo.read(); |
---|
| 1937 | r_write_srcid = m_cmd_write_srcid_fifo.read(); |
---|
| 1938 | r_write_trdid = m_cmd_write_trdid_fifo.read(); |
---|
| 1939 | r_write_pktid = m_cmd_write_pktid_fifo.read(); |
---|
[336] | 1940 | r_write_pending_sc = false; |
---|
[331] | 1941 | |
---|
| 1942 | // initialize the be field for all words |
---|
| 1943 | for(size_t word=0 ; word<m_words ; word++) |
---|
| 1944 | { |
---|
| 1945 | if(word == index) r_write_be[word] = m_cmd_write_be_fifo.read(); |
---|
[336] | 1946 | else r_write_be[word] = 0x0; |
---|
[331] | 1947 | } |
---|
| 1948 | |
---|
[336] | 1949 | if (m_cmd_write_eop_fifo.read() || ((m_cmd_write_pktid_fifo.read() & 0x7) == TYPE_SC)) |
---|
[331] | 1950 | { |
---|
| 1951 | r_write_fsm = WRITE_DIR_REQ; |
---|
| 1952 | } |
---|
| 1953 | else |
---|
| 1954 | { |
---|
| 1955 | r_write_fsm = WRITE_NEXT; |
---|
| 1956 | } |
---|
| 1957 | |
---|
| 1958 | #if DEBUG_MEMC_WRITE |
---|
| 1959 | if(m_debug_write_fsm) |
---|
| 1960 | { |
---|
| 1961 | std::cout << " <MEMC " << name() << ".WRITE_IDLE> Write request " |
---|
| 1962 | << " srcid = " << std::dec << m_cmd_write_srcid_fifo.read() |
---|
| 1963 | << " / address = " << std::hex << m_cmd_write_addr_fifo.read() |
---|
| 1964 | << " / data = " << m_cmd_write_data_fifo.read() << std::endl; |
---|
| 1965 | } |
---|
| 1966 | #endif |
---|
| 1967 | } |
---|
| 1968 | break; |
---|
| 1969 | } |
---|
| 1970 | |
---|
| 1971 | //////////////// |
---|
| 1972 | case WRITE_NEXT: // copy next word of a write burst in local buffer |
---|
| 1973 | { |
---|
| 1974 | if(m_cmd_write_addr_fifo.rok()) |
---|
| 1975 | { |
---|
| 1976 | |
---|
| 1977 | #if DEBUG_MEMC_WRITE |
---|
| 1978 | if(m_debug_write_fsm) |
---|
| 1979 | { |
---|
[336] | 1980 | std::cout << " <MEMC " << name() |
---|
| 1981 | << ".WRITE_NEXT> Write another word in local buffer" |
---|
[331] | 1982 | << std::endl; |
---|
| 1983 | } |
---|
| 1984 | #endif |
---|
| 1985 | m_cpt_write_cells++; |
---|
| 1986 | |
---|
| 1987 | // check that the next word is in the same cache line |
---|
| 1988 | if((m_nline[(vci_addr_t)(r_write_address.read())] != |
---|
| 1989 | m_nline[(vci_addr_t)(m_cmd_write_addr_fifo.read())])) |
---|
| 1990 | { |
---|
| 1991 | std::cout << "VCI_MEM_CACHE ERROR " << name() << " WRITE_NEXT state" << std::endl |
---|
| 1992 | << "all words in a write burst must be in same cache line" << std::endl; |
---|
| 1993 | |
---|
| 1994 | exit(0); |
---|
| 1995 | } |
---|
| 1996 | |
---|
| 1997 | // consume a word in the FIFO & write it in the local buffer |
---|
| 1998 | cmd_write_fifo_get = true; |
---|
| 1999 | size_t index = r_write_word_index.read() + r_write_word_count.read(); |
---|
| 2000 | |
---|
| 2001 | r_write_be[index] = m_cmd_write_be_fifo.read(); |
---|
| 2002 | r_write_data[index] = m_cmd_write_data_fifo.read(); |
---|
| 2003 | r_write_word_count = r_write_word_count.read() + 1; |
---|
| 2004 | |
---|
| 2005 | if(m_cmd_write_eop_fifo.read()) |
---|
| 2006 | { |
---|
| 2007 | r_write_fsm = WRITE_DIR_REQ; |
---|
| 2008 | } |
---|
| 2009 | } |
---|
| 2010 | break; |
---|
| 2011 | } |
---|
| 2012 | |
---|
| 2013 | //////////////////// |
---|
| 2014 | case WRITE_DIR_REQ: |
---|
[336] | 2015 | { |
---|
[331] | 2016 | // Get the lock to the directory |
---|
[336] | 2017 | // and access the llsc_global_table |
---|
[331] | 2018 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_WRITE) |
---|
| 2019 | { |
---|
[336] | 2020 | /////////////////////////////////////////////////////////////////////// |
---|
| 2021 | // SC command treatment |
---|
| 2022 | // We test the r_write_pending_sc register to know if we are returning |
---|
| 2023 | // from the WAIT state. |
---|
| 2024 | // In this case, the SC has already succeed and we cannot consume |
---|
| 2025 | // another time from the FIFO. Also, we don't have to test another |
---|
| 2026 | // time if the SC has succeed |
---|
| 2027 | if(((r_write_pktid.read() & 0x7) == TYPE_SC) and not r_write_pending_sc.read()) |
---|
[331] | 2028 | { |
---|
[336] | 2029 | if(not m_cmd_write_addr_fifo.rok()) break; |
---|
[331] | 2030 | |
---|
[336] | 2031 | assert(m_cmd_write_eop_fifo.read() && |
---|
| 2032 | "Error in VCI_MEM_CACHE : " |
---|
| 2033 | "invalid packet format for SC command"); |
---|
[331] | 2034 | |
---|
[336] | 2035 | size_t index = r_write_word_index.read(); |
---|
| 2036 | bool sc_success = m_llsc_table.sc(r_write_address.read() , |
---|
| 2037 | r_write_data[index].read()); |
---|
| 2038 | |
---|
| 2039 | // consume a word in the FIFO & write it in the local buffer |
---|
| 2040 | cmd_write_fifo_get = true; |
---|
| 2041 | r_write_data[index] = m_cmd_write_data_fifo.read(); |
---|
| 2042 | r_write_sc_fail = not sc_success; |
---|
| 2043 | r_write_pending_sc = true; |
---|
| 2044 | |
---|
| 2045 | if(not sc_success) r_write_fsm = WRITE_RSP; |
---|
| 2046 | else r_write_fsm = WRITE_DIR_LOCK; |
---|
| 2047 | |
---|
| 2048 | break; |
---|
[331] | 2049 | } |
---|
[336] | 2050 | |
---|
| 2051 | /////////////////////////////////////////////////////////////////////// |
---|
| 2052 | // WRITE command treatment or SC command returning from the WAIT state |
---|
| 2053 | // In the second case, we must access the LL/SC global table to |
---|
| 2054 | // erase any possible new reservation when we release the lock on the |
---|
| 2055 | // directory |
---|
| 2056 | m_llsc_table.sw(r_write_address.read()); |
---|
| 2057 | |
---|
[331] | 2058 | r_write_fsm = WRITE_DIR_LOCK; |
---|
| 2059 | } |
---|
| 2060 | |
---|
| 2061 | #if DEBUG_MEMC_WRITE |
---|
| 2062 | if(m_debug_write_fsm) |
---|
| 2063 | { |
---|
| 2064 | std::cout |
---|
| 2065 | << " <MEMC " << name() << ".WRITE_DIR_REQ> Requesting DIR lock " |
---|
| 2066 | << std::endl; |
---|
| 2067 | } |
---|
| 2068 | #endif |
---|
| 2069 | |
---|
| 2070 | break; |
---|
| 2071 | } |
---|
| 2072 | |
---|
| 2073 | //////////////////// |
---|
| 2074 | case WRITE_DIR_LOCK: |
---|
| 2075 | // access directory to check hit/miss |
---|
| 2076 | { |
---|
| 2077 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_WRITE) |
---|
| 2078 | { |
---|
| 2079 | size_t way = 0; |
---|
| 2080 | DirectoryEntry entry(m_cache_directory.read(r_write_address.read(), way)); |
---|
| 2081 | |
---|
| 2082 | if(entry.valid) // hit |
---|
| 2083 | { |
---|
| 2084 | // copy directory entry in local buffer in case of hit |
---|
| 2085 | r_write_is_cnt = entry.is_cnt; |
---|
| 2086 | r_write_lock = entry.lock; |
---|
| 2087 | r_write_tag = entry.tag; |
---|
| 2088 | r_write_copy = entry.owner.srcid; |
---|
| 2089 | #if L1_MULTI_CACHE |
---|
| 2090 | r_write_copy_cache = entry.owner.cache_id; |
---|
| 2091 | #endif |
---|
| 2092 | r_write_copy_inst = entry.owner.inst; |
---|
| 2093 | r_write_count = entry.count; |
---|
| 2094 | r_write_ptr = entry.ptr; |
---|
| 2095 | r_write_way = way; |
---|
| 2096 | |
---|
| 2097 | if(entry.is_cnt && entry.count) |
---|
| 2098 | { |
---|
| 2099 | r_write_fsm = WRITE_DIR_READ; |
---|
| 2100 | } |
---|
| 2101 | else |
---|
| 2102 | { |
---|
| 2103 | r_write_fsm = WRITE_DIR_HIT; |
---|
| 2104 | } |
---|
| 2105 | } |
---|
| 2106 | else // miss |
---|
| 2107 | { |
---|
| 2108 | r_write_fsm = WRITE_MISS_TRT_LOCK; |
---|
| 2109 | } |
---|
| 2110 | |
---|
| 2111 | #if DEBUG_MEMC_WRITE |
---|
| 2112 | if(m_debug_write_fsm) |
---|
| 2113 | { |
---|
| 2114 | std::cout << " <MEMC " << name() << ".WRITE_DIR_LOCK> Check the directory: " |
---|
| 2115 | << " address = " << std::hex << r_write_address.read() |
---|
| 2116 | << " hit = " << std::dec << entry.valid |
---|
| 2117 | << " count = " << entry.count |
---|
| 2118 | << " is_cnt = " << entry.is_cnt << std::endl; |
---|
| 2119 | if((r_write_pktid.read() & 0x7) == TYPE_SC) |
---|
| 2120 | std::cout << " <MEMC " << name() << ".WRITE_DIR_LOCK> global_llsc_table SC access" << std::endl; |
---|
| 2121 | else |
---|
| 2122 | std::cout << " <MEMC " << name() << ".WRITE_DIR_LOCK> global_llsc_table SW access" << std::endl; |
---|
| 2123 | } |
---|
| 2124 | #endif |
---|
| 2125 | } |
---|
| 2126 | else |
---|
| 2127 | { |
---|
| 2128 | std::cout << "VCI_MEM_CACHE ERROR " << name() |
---|
| 2129 | << " WRITE_DIR_LOCK state" << std::endl |
---|
| 2130 | << "bad DIR allocation" << std::endl; |
---|
| 2131 | |
---|
| 2132 | exit(0); |
---|
| 2133 | } |
---|
| 2134 | |
---|
| 2135 | break; |
---|
| 2136 | } |
---|
| 2137 | |
---|
| 2138 | //////////////////// |
---|
| 2139 | case WRITE_DIR_READ: // read the cache and complete the buffer when be!=0xF |
---|
| 2140 | { |
---|
| 2141 | // update local buffer |
---|
| 2142 | size_t set = m_y[(vci_addr_t)(r_write_address.read())]; |
---|
| 2143 | size_t way = r_write_way.read(); |
---|
| 2144 | for(size_t word=0 ; word<m_words ; word++) |
---|
| 2145 | { |
---|
| 2146 | data_t mask = 0; |
---|
| 2147 | if(r_write_be[word].read() & 0x1) mask = mask | 0x000000FF; |
---|
| 2148 | if(r_write_be[word].read() & 0x2) mask = mask | 0x0000FF00; |
---|
| 2149 | if(r_write_be[word].read() & 0x4) mask = mask | 0x00FF0000; |
---|
| 2150 | if(r_write_be[word].read() & 0x8) mask = mask | 0xFF000000; |
---|
| 2151 | |
---|
| 2152 | // complete only if mask is not null (for energy consumption) |
---|
| 2153 | r_write_data[word] = (r_write_data[word].read() & mask) | |
---|
| 2154 | (m_cache_data.read(way, set, word) & ~mask); |
---|
| 2155 | |
---|
| 2156 | } // end for |
---|
| 2157 | |
---|
| 2158 | // test if a coherence broadcast is required |
---|
| 2159 | r_write_fsm = WRITE_BC_TRT_LOCK; |
---|
| 2160 | |
---|
| 2161 | #if DEBUG_MEMC_WRITE |
---|
| 2162 | if(m_debug_write_fsm) |
---|
| 2163 | { |
---|
| 2164 | std::cout << " <MEMC " << name() << ".WRITE_DIR_READ> Read the cache to complete local buffer" << std::endl; |
---|
| 2165 | } |
---|
| 2166 | #endif |
---|
| 2167 | break; |
---|
| 2168 | } |
---|
| 2169 | |
---|
| 2170 | /////////////////// |
---|
| 2171 | case WRITE_DIR_HIT: |
---|
| 2172 | { |
---|
| 2173 | // update the cache directory |
---|
| 2174 | // update directory with Dirty bit |
---|
| 2175 | DirectoryEntry entry; |
---|
| 2176 | entry.valid = true; |
---|
| 2177 | entry.dirty = true; |
---|
| 2178 | entry.tag = r_write_tag.read(); |
---|
| 2179 | entry.is_cnt = r_write_is_cnt.read(); |
---|
| 2180 | entry.lock = r_write_lock.read(); |
---|
| 2181 | entry.owner.srcid = r_write_copy.read(); |
---|
| 2182 | #if L1_MULTI_CACHE |
---|
| 2183 | entry.owner.cache_id = r_write_copy_cache.read(); |
---|
| 2184 | #endif |
---|
| 2185 | entry.owner.inst = r_write_copy_inst.read(); |
---|
| 2186 | entry.count = r_write_count.read(); |
---|
| 2187 | entry.ptr = r_write_ptr.read(); |
---|
| 2188 | |
---|
| 2189 | size_t set = m_y[(vci_addr_t)(r_write_address.read())]; |
---|
| 2190 | size_t way = r_write_way.read(); |
---|
| 2191 | |
---|
| 2192 | // update directory |
---|
| 2193 | m_cache_directory.write(set, way, entry); |
---|
| 2194 | |
---|
| 2195 | // owner is true when the the first registered copy is the writer itself |
---|
| 2196 | bool owner = (((r_write_copy.read() == r_write_srcid.read()) |
---|
| 2197 | #if L1_MULTI_CACHE |
---|
| 2198 | and(r_write_copy_cache.read() ==r_write_pktid.read()) |
---|
| 2199 | #endif |
---|
| 2200 | ) and not r_write_copy_inst.read()); |
---|
| 2201 | |
---|
| 2202 | // no_update is true when there is no need for coherence transaction |
---|
| 2203 | // (tests for sc requests) |
---|
| 2204 | bool no_update = ((r_write_count.read() ==0) || (owner && (r_write_count.read() ==1) && (r_write_pktid.read() != TYPE_SC))); |
---|
| 2205 | |
---|
| 2206 | // write data in the cache if no coherence transaction |
---|
| 2207 | if(no_update) |
---|
| 2208 | { |
---|
| 2209 | for(size_t word=0 ; word<m_words ; word++) |
---|
| 2210 | { |
---|
| 2211 | m_cache_data.write(way, set, word, r_write_data[word].read(), r_write_be[word].read()); |
---|
| 2212 | |
---|
| 2213 | if(m_monitor_ok) |
---|
| 2214 | { |
---|
| 2215 | vci_addr_t address = (r_write_address.read() & ~(vci_addr_t) 0x3F) | word<<2; |
---|
| 2216 | char buf[80]; |
---|
| 2217 | snprintf(buf, 80, "WRITE_DIR_HIT srcid %d", r_write_srcid.read()); |
---|
| 2218 | check_monitor(buf, address, r_write_data[word].read()); |
---|
| 2219 | } |
---|
| 2220 | } |
---|
| 2221 | } |
---|
| 2222 | |
---|
| 2223 | if(owner and not no_update and(r_write_pktid.read() != TYPE_SC)) |
---|
| 2224 | { |
---|
| 2225 | r_write_count = r_write_count.read() - 1; |
---|
| 2226 | } |
---|
| 2227 | |
---|
| 2228 | if(no_update) |
---|
[336] | 2229 | // Write transaction completed |
---|
[331] | 2230 | { |
---|
| 2231 | r_write_fsm = WRITE_RSP; |
---|
| 2232 | } |
---|
| 2233 | else |
---|
[336] | 2234 | // coherence update required |
---|
[331] | 2235 | { |
---|
| 2236 | if(!r_write_to_cc_send_multi_req.read() && |
---|
| 2237 | !r_write_to_cc_send_brdcast_req.read()) |
---|
| 2238 | { |
---|
| 2239 | r_write_fsm = WRITE_UPT_LOCK; |
---|
| 2240 | } |
---|
| 2241 | else |
---|
| 2242 | { |
---|
| 2243 | r_write_fsm = WRITE_WAIT; |
---|
| 2244 | } |
---|
| 2245 | } |
---|
| 2246 | |
---|
| 2247 | #if DEBUG_MEMC_WRITE |
---|
| 2248 | if(m_debug_write_fsm) |
---|
| 2249 | { |
---|
| 2250 | if(no_update) |
---|
| 2251 | { |
---|
| 2252 | std::cout << " <MEMC " << name() << ".WRITE_DIR_HIT> Write into cache / No coherence transaction" |
---|
| 2253 | << std::endl; |
---|
| 2254 | } |
---|
| 2255 | else |
---|
| 2256 | { |
---|
| 2257 | std::cout << " <MEMC " << name() << ".WRITE_DIR_HIT> Coherence update required:" |
---|
| 2258 | << " is_cnt = " << r_write_is_cnt.read() |
---|
| 2259 | << " nb_copies = " << std::dec << r_write_count.read() << std::endl; |
---|
| 2260 | if(owner) |
---|
| 2261 | std::cout << " ... but the first copy is the writer" << std::endl; |
---|
| 2262 | } |
---|
| 2263 | } |
---|
| 2264 | #endif |
---|
| 2265 | break; |
---|
| 2266 | } |
---|
| 2267 | |
---|
| 2268 | //////////////////// |
---|
| 2269 | case WRITE_UPT_LOCK: // Try to register the update request in UPT |
---|
| 2270 | { |
---|
| 2271 | if(r_alloc_upt_fsm.read() == ALLOC_UPT_WRITE) |
---|
| 2272 | { |
---|
| 2273 | bool wok = false; |
---|
| 2274 | size_t index = 0; |
---|
| 2275 | size_t srcid = r_write_srcid.read(); |
---|
| 2276 | size_t trdid = r_write_trdid.read(); |
---|
| 2277 | size_t pktid = r_write_pktid.read(); |
---|
| 2278 | addr_t nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2279 | size_t nb_copies = r_write_count.read(); |
---|
| 2280 | size_t set = m_y[(vci_addr_t)(r_write_address.read())]; |
---|
| 2281 | size_t way = r_write_way.read(); |
---|
| 2282 | |
---|
[346] | 2283 | wok = m_upt.set(true, // it's an update transaction |
---|
[331] | 2284 | false, // it's not a broadcast |
---|
| 2285 | true, // it needs a response |
---|
| 2286 | srcid, |
---|
| 2287 | trdid, |
---|
| 2288 | pktid, |
---|
| 2289 | nline, |
---|
| 2290 | nb_copies, |
---|
| 2291 | index); |
---|
| 2292 | if(wok) // write data in cache |
---|
| 2293 | { |
---|
| 2294 | for(size_t word=0 ; word<m_words ; word++) |
---|
| 2295 | { |
---|
| 2296 | m_cache_data.write(way, set, word, r_write_data[word].read(), r_write_be[word].read()); |
---|
| 2297 | |
---|
| 2298 | if(m_monitor_ok) |
---|
| 2299 | { |
---|
| 2300 | vci_addr_t address = (r_write_address.read() & ~(vci_addr_t) 0x3F) | word<<2; |
---|
| 2301 | char buf[80]; |
---|
| 2302 | snprintf(buf, 80, "WRITE_UPT_LOCK srcid %d", srcid); |
---|
| 2303 | check_monitor(buf, address, r_write_data[word].read()); |
---|
| 2304 | } |
---|
| 2305 | } |
---|
| 2306 | } |
---|
| 2307 | |
---|
| 2308 | #if DEBUG_MEMC_WRITE |
---|
| 2309 | if(m_debug_write_fsm) |
---|
| 2310 | { |
---|
| 2311 | if(wok) |
---|
| 2312 | { |
---|
| 2313 | std::cout << " <MEMC " << name() << ".WRITE_UPT_LOCK> Register the multicast update in UPT / " |
---|
| 2314 | << " nb_copies = " << r_write_count.read() << std::endl; |
---|
| 2315 | } |
---|
| 2316 | } |
---|
| 2317 | #endif |
---|
| 2318 | r_write_upt_index = index; |
---|
| 2319 | // releases the lock protecting UPT and the DIR if no entry... |
---|
| 2320 | if(wok) r_write_fsm = WRITE_UPT_HEAP_LOCK; |
---|
[336] | 2321 | else r_write_fsm = WRITE_WAIT; |
---|
[331] | 2322 | } |
---|
| 2323 | break; |
---|
| 2324 | } |
---|
| 2325 | |
---|
| 2326 | ///////////////////////// |
---|
| 2327 | case WRITE_UPT_HEAP_LOCK: // get access to heap |
---|
| 2328 | { |
---|
| 2329 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_WRITE) |
---|
| 2330 | { |
---|
| 2331 | |
---|
| 2332 | #if DEBUG_MEMC_WRITE |
---|
| 2333 | if(m_debug_write_fsm) |
---|
| 2334 | { |
---|
| 2335 | std::cout << " <MEMC " << name() << ".WRITE_UPT_HEAP_LOCK> Get acces to the HEAP" << std::endl; |
---|
| 2336 | } |
---|
| 2337 | #endif |
---|
| 2338 | r_write_fsm = WRITE_UPT_REQ; |
---|
| 2339 | } |
---|
| 2340 | break; |
---|
| 2341 | } |
---|
| 2342 | |
---|
| 2343 | ////////////////// |
---|
| 2344 | case WRITE_UPT_REQ: |
---|
| 2345 | { |
---|
| 2346 | // prepare the coherence transaction for the CC_SEND FSM |
---|
| 2347 | // and write the first copy in the FIFO |
---|
| 2348 | // send the request if only one copy |
---|
| 2349 | |
---|
| 2350 | if(!r_write_to_cc_send_multi_req.read() && |
---|
| 2351 | !r_write_to_cc_send_brdcast_req.read()) // no pending coherence request |
---|
| 2352 | { |
---|
| 2353 | r_write_to_cc_send_brdcast_req = false; |
---|
| 2354 | r_write_to_cc_send_trdid = r_write_upt_index.read(); |
---|
| 2355 | r_write_to_cc_send_nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2356 | r_write_to_cc_send_index = r_write_word_index.read(); |
---|
| 2357 | r_write_to_cc_send_count = r_write_word_count.read(); |
---|
| 2358 | |
---|
| 2359 | for(size_t i=0; i<m_words ; i++) r_write_to_cc_send_be[i]=r_write_be[i].read(); |
---|
| 2360 | |
---|
| 2361 | size_t min = r_write_word_index.read(); |
---|
| 2362 | size_t max = r_write_word_index.read() + r_write_word_count.read(); |
---|
| 2363 | for(size_t i=min ; i<max ; i++) r_write_to_cc_send_data[i] = r_write_data[i]; |
---|
| 2364 | |
---|
| 2365 | if((r_write_copy.read() != r_write_srcid.read()) or(r_write_pktid.read() == TYPE_SC) or |
---|
| 2366 | #if L1_MULTI_CACHE |
---|
| 2367 | (r_write_copy_cache.read() != r_write_pktid.read()) or |
---|
| 2368 | #endif |
---|
| 2369 | r_write_copy_inst.read()) |
---|
| 2370 | { |
---|
| 2371 | // put the first srcid in the fifo |
---|
| 2372 | write_to_cc_send_fifo_put = true; |
---|
| 2373 | write_to_cc_send_fifo_inst = r_write_copy_inst.read(); |
---|
| 2374 | write_to_cc_send_fifo_srcid = r_write_copy.read(); |
---|
| 2375 | #if L1_MULTI_CACHE |
---|
| 2376 | write_to_cc_send_fifo_cache_id= r_write_copy_cache.read(); |
---|
| 2377 | #endif |
---|
[339] | 2378 | if(r_write_count.read() == 1) |
---|
[331] | 2379 | { |
---|
| 2380 | r_write_fsm = WRITE_IDLE; |
---|
| 2381 | r_write_to_cc_send_multi_req = true; |
---|
| 2382 | } |
---|
| 2383 | else |
---|
| 2384 | { |
---|
| 2385 | r_write_fsm = WRITE_UPT_NEXT; |
---|
| 2386 | r_write_to_dec = false; |
---|
| 2387 | |
---|
| 2388 | } |
---|
| 2389 | } |
---|
| 2390 | else |
---|
| 2391 | { |
---|
| 2392 | r_write_fsm = WRITE_UPT_NEXT; |
---|
| 2393 | r_write_to_dec = false; |
---|
| 2394 | } |
---|
| 2395 | |
---|
| 2396 | #if DEBUG_MEMC_WRITE |
---|
| 2397 | if(m_debug_write_fsm) |
---|
| 2398 | { |
---|
| 2399 | std::cout << " <MEMC " << name() << ".WRITE_UPT_REQ> Post first request to CC_SEND FSM" |
---|
| 2400 | << " / srcid = " << std::dec << r_write_copy.read() |
---|
| 2401 | << " / inst = " << std::dec << r_write_copy_inst.read() << std::endl; |
---|
| 2402 | if(r_write_count.read() == 1) |
---|
| 2403 | std::cout << " ... and this is the last" << std::endl; |
---|
| 2404 | } |
---|
| 2405 | #endif |
---|
| 2406 | } |
---|
| 2407 | break; |
---|
| 2408 | } |
---|
| 2409 | |
---|
| 2410 | /////////////////// |
---|
| 2411 | case WRITE_UPT_NEXT: |
---|
| 2412 | { |
---|
| 2413 | // continue the multi-update request to CC_SEND fsm |
---|
| 2414 | // when there is copies in the heap. |
---|
| 2415 | // if one copy in the heap is the writer itself |
---|
| 2416 | // the corresponding SRCID should not be written in the fifo, |
---|
| 2417 | // but the UPT counter must be decremented. |
---|
| 2418 | // As this decrement is done in the WRITE_UPT_DEC state, |
---|
| 2419 | // after the last copy has been found, the decrement request |
---|
| 2420 | // must be registered in the r_write_to_dec flip-flop. |
---|
| 2421 | |
---|
| 2422 | HeapEntry entry = m_heap.read(r_write_ptr.read()); |
---|
| 2423 | |
---|
| 2424 | bool dec_upt_counter; |
---|
| 2425 | |
---|
| 2426 | if(((entry.owner.srcid != r_write_srcid.read()) || (r_write_pktid.read() == TYPE_SC)) or |
---|
| 2427 | #if L1_MULTI_CACHE |
---|
| 2428 | (entry.owner.cache_id != r_write_pktid.read()) or |
---|
| 2429 | #endif |
---|
| 2430 | entry.owner.inst) // put the next srcid in the fifo |
---|
| 2431 | { |
---|
| 2432 | dec_upt_counter = false; |
---|
| 2433 | write_to_cc_send_fifo_put = true; |
---|
| 2434 | write_to_cc_send_fifo_inst = entry.owner.inst; |
---|
| 2435 | write_to_cc_send_fifo_srcid = entry.owner.srcid; |
---|
| 2436 | #if L1_MULTI_CACHE |
---|
| 2437 | write_to_cc_send_fifo_cache_id = entry.owner.cache_id; |
---|
| 2438 | #endif |
---|
| 2439 | |
---|
| 2440 | #if DEBUG_MEMC_WRITE |
---|
| 2441 | if(m_debug_write_fsm) |
---|
| 2442 | { |
---|
| 2443 | std::cout << " <MEMC " << name() << ".WRITE_UPT_NEXT> Post another request to CC_SEND FSM" |
---|
| 2444 | << " / heap_index = " << std::dec << r_write_ptr.read() |
---|
| 2445 | << " / srcid = " << std::dec << r_write_copy.read() |
---|
| 2446 | << " / inst = " << std::dec << r_write_copy_inst.read() << std::endl; |
---|
| 2447 | if(entry.next == r_write_ptr.read()) |
---|
| 2448 | std::cout << " ... and this is the last" << std::endl; |
---|
| 2449 | } |
---|
| 2450 | #endif |
---|
| 2451 | } |
---|
| 2452 | else // the UPT counter must be decremented |
---|
| 2453 | { |
---|
| 2454 | dec_upt_counter = true; |
---|
| 2455 | |
---|
| 2456 | #if DEBUG_MEMC_WRITE |
---|
| 2457 | if(m_debug_write_fsm) |
---|
| 2458 | { |
---|
| 2459 | std::cout << " <MEMC " << name() << ".WRITE_UPT_NEXT> Skip one entry in heap matching the writer" |
---|
| 2460 | << " / heap_index = " << std::dec << r_write_ptr.read() |
---|
| 2461 | << " / srcid = " << std::dec << r_write_copy.read() |
---|
| 2462 | << " / inst = " << std::dec << r_write_copy_inst.read() << std::endl; |
---|
| 2463 | if(entry.next == r_write_ptr.read()) |
---|
| 2464 | std::cout << " ... and this is the last" << std::endl; |
---|
| 2465 | } |
---|
| 2466 | #endif |
---|
| 2467 | } |
---|
| 2468 | |
---|
| 2469 | // register the possible UPT decrement request |
---|
| 2470 | r_write_to_dec = dec_upt_counter or r_write_to_dec.read(); |
---|
| 2471 | |
---|
| 2472 | if(not m_write_to_cc_send_inst_fifo.wok()) |
---|
| 2473 | { |
---|
| 2474 | std::cout << "VCI_MEM_CACHE ERROR " << name() << " WRITE_UPT_NEXT state" << std::endl |
---|
| 2475 | << "The write_to_cc_send_fifo should not be full" << std::endl |
---|
| 2476 | << "as the depth should be larger than the max number of copies" << std::endl; |
---|
| 2477 | exit(0); |
---|
| 2478 | } |
---|
| 2479 | |
---|
| 2480 | r_write_ptr = entry.next; |
---|
| 2481 | |
---|
| 2482 | if(entry.next == r_write_ptr.read()) // last copy |
---|
| 2483 | { |
---|
| 2484 | r_write_to_cc_send_multi_req = true; |
---|
| 2485 | if(r_write_to_dec.read() or dec_upt_counter) r_write_fsm = WRITE_UPT_DEC; |
---|
| 2486 | else r_write_fsm = WRITE_IDLE; |
---|
| 2487 | } |
---|
| 2488 | break; |
---|
| 2489 | } |
---|
| 2490 | |
---|
| 2491 | ////////////////// |
---|
| 2492 | case WRITE_UPT_DEC: |
---|
| 2493 | { |
---|
| 2494 | // If the initial writer has a copy, it should not |
---|
| 2495 | // receive an update request, but the counter in the |
---|
| 2496 | // update table must be decremented by the MULTI_ACK FSM. |
---|
| 2497 | |
---|
| 2498 | if(!r_write_to_multi_ack_req.read()) |
---|
| 2499 | { |
---|
| 2500 | r_write_to_multi_ack_req = true; |
---|
| 2501 | r_write_to_multi_ack_upt_index = r_write_upt_index.read(); |
---|
| 2502 | r_write_fsm = WRITE_IDLE; |
---|
| 2503 | } |
---|
| 2504 | break; |
---|
| 2505 | } |
---|
| 2506 | |
---|
| 2507 | /////////////// |
---|
| 2508 | case WRITE_RSP: |
---|
| 2509 | { |
---|
| 2510 | // Post a request to TGT_RSP FSM to acknowledge the write |
---|
| 2511 | // In order to increase the Write requests throughput, |
---|
| 2512 | // we don't wait to return in the IDLE state to consume |
---|
| 2513 | // a new request in the write FIFO |
---|
| 2514 | |
---|
| 2515 | if(!r_write_to_tgt_rsp_req.read()) |
---|
| 2516 | { |
---|
| 2517 | // post the request to TGT_RSP_FSM |
---|
| 2518 | r_write_to_tgt_rsp_req = true; |
---|
| 2519 | r_write_to_tgt_rsp_srcid = r_write_srcid.read(); |
---|
| 2520 | r_write_to_tgt_rsp_trdid = r_write_trdid.read(); |
---|
| 2521 | r_write_to_tgt_rsp_pktid = r_write_pktid.read(); |
---|
| 2522 | r_write_to_tgt_rsp_sc_fail = r_write_sc_fail.read(); |
---|
| 2523 | |
---|
| 2524 | // try to get a new write request from the FIFO |
---|
| 2525 | if(m_cmd_write_addr_fifo.rok()) |
---|
| 2526 | { |
---|
| 2527 | if((m_cmd_write_pktid_fifo.read() & 0x7) == TYPE_SC) |
---|
| 2528 | m_cpt_sc++; |
---|
| 2529 | else |
---|
| 2530 | { |
---|
| 2531 | m_cpt_write++; |
---|
| 2532 | m_cpt_write_cells++; |
---|
| 2533 | } |
---|
| 2534 | |
---|
| 2535 | // consume a word in the FIFO & write it in the local buffer |
---|
| 2536 | cmd_write_fifo_get = true; |
---|
| 2537 | size_t index = m_x[(vci_addr_t)(m_cmd_write_addr_fifo.read())]; |
---|
| 2538 | |
---|
| 2539 | r_write_address = (addr_t)(m_cmd_write_addr_fifo.read()); |
---|
| 2540 | r_write_word_index = index; |
---|
| 2541 | r_write_word_count = 1; |
---|
| 2542 | r_write_data[index] = m_cmd_write_data_fifo.read(); |
---|
| 2543 | r_write_srcid = m_cmd_write_srcid_fifo.read(); |
---|
| 2544 | r_write_trdid = m_cmd_write_trdid_fifo.read(); |
---|
| 2545 | r_write_pktid = m_cmd_write_pktid_fifo.read(); |
---|
[336] | 2546 | r_write_pending_sc = false; |
---|
[331] | 2547 | |
---|
| 2548 | // initialize the be field for all words |
---|
| 2549 | for(size_t word=0 ; word<m_words ; word++) |
---|
| 2550 | { |
---|
| 2551 | if(word == index) r_write_be[word] = m_cmd_write_be_fifo.read(); |
---|
| 2552 | else r_write_be[word] = 0x0; |
---|
| 2553 | } |
---|
| 2554 | |
---|
| 2555 | if(m_cmd_write_eop_fifo.read() || ((m_cmd_write_pktid_fifo.read() & 0x7) == TYPE_SC)) |
---|
| 2556 | { |
---|
| 2557 | r_write_fsm = WRITE_DIR_REQ; |
---|
| 2558 | } |
---|
| 2559 | else |
---|
| 2560 | { |
---|
| 2561 | r_write_fsm = WRITE_NEXT; |
---|
| 2562 | } |
---|
| 2563 | } |
---|
| 2564 | else |
---|
| 2565 | { |
---|
| 2566 | r_write_fsm = WRITE_IDLE; |
---|
| 2567 | } |
---|
| 2568 | |
---|
| 2569 | #if DEBUG_MEMC_WRITE |
---|
| 2570 | if(m_debug_write_fsm) |
---|
| 2571 | { |
---|
| 2572 | std::cout << " <MEMC " << name() << ".WRITE_RSP> Post a request to TGT_RSP FSM: rsrcid = " |
---|
| 2573 | << std::dec << r_write_srcid.read() << std::endl; |
---|
| 2574 | if(m_cmd_write_addr_fifo.rok()) |
---|
| 2575 | { |
---|
| 2576 | std::cout << " New Write request: " |
---|
| 2577 | << " srcid = " << std::dec << m_cmd_write_srcid_fifo.read() |
---|
| 2578 | << " / address = " << std::hex << m_cmd_write_addr_fifo.read() |
---|
| 2579 | << " / data = " << m_cmd_write_data_fifo.read() << std::endl; |
---|
| 2580 | } |
---|
| 2581 | } |
---|
| 2582 | #endif |
---|
| 2583 | } |
---|
| 2584 | break; |
---|
| 2585 | } |
---|
| 2586 | |
---|
| 2587 | ///////////////////////// |
---|
| 2588 | case WRITE_MISS_TRT_LOCK: // Miss : check Transaction Table |
---|
| 2589 | { |
---|
| 2590 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_WRITE) |
---|
| 2591 | { |
---|
| 2592 | |
---|
| 2593 | #if DEBUG_MEMC_WRITE |
---|
| 2594 | if(m_debug_write_fsm) |
---|
| 2595 | { |
---|
| 2596 | std::cout << " <MEMC " << name() << ".WRITE_MISS_TRT_LOCK> Check the TRT" << std::endl; |
---|
| 2597 | } |
---|
| 2598 | #endif |
---|
| 2599 | size_t hit_index = 0; |
---|
| 2600 | size_t wok_index = 0; |
---|
| 2601 | vci_addr_t addr = (vci_addr_t) r_write_address.read(); |
---|
[346] | 2602 | bool hit_read = m_trt.hit_read(m_nline[addr], hit_index); |
---|
| 2603 | bool hit_write = m_trt.hit_write(m_nline[addr]); |
---|
| 2604 | bool wok = !m_trt.full(wok_index); |
---|
[331] | 2605 | |
---|
| 2606 | if(hit_read) // register the modified data in TRT |
---|
| 2607 | { |
---|
| 2608 | r_write_trt_index = hit_index; |
---|
| 2609 | r_write_fsm = WRITE_MISS_TRT_DATA; |
---|
| 2610 | m_cpt_write_miss++; |
---|
| 2611 | } |
---|
| 2612 | else if(wok && !hit_write) // set a new entry in TRT |
---|
| 2613 | { |
---|
| 2614 | r_write_trt_index = wok_index; |
---|
| 2615 | r_write_fsm = WRITE_MISS_TRT_SET; |
---|
| 2616 | m_cpt_write_miss++; |
---|
| 2617 | } |
---|
| 2618 | else // wait an empty entry in TRT |
---|
| 2619 | { |
---|
| 2620 | r_write_fsm = WRITE_WAIT; |
---|
| 2621 | m_cpt_trt_full++; |
---|
| 2622 | } |
---|
| 2623 | } |
---|
| 2624 | break; |
---|
| 2625 | } |
---|
| 2626 | |
---|
| 2627 | //////////////// |
---|
| 2628 | case WRITE_WAIT: // release the locks protecting the shared ressources |
---|
| 2629 | { |
---|
| 2630 | #if DEBUG_MEMC_WRITE |
---|
| 2631 | if(m_debug_write_fsm) |
---|
| 2632 | { |
---|
| 2633 | std::cout << " <MEMC " << name() << ".WRITE_WAIT> Releases the locks before retry" << std::endl; |
---|
| 2634 | } |
---|
| 2635 | #endif |
---|
| 2636 | r_write_fsm = WRITE_DIR_REQ; |
---|
| 2637 | break; |
---|
| 2638 | } |
---|
| 2639 | |
---|
| 2640 | //////////////////////// |
---|
| 2641 | case WRITE_MISS_TRT_SET: // register a new transaction in TRT (Write Buffer) |
---|
| 2642 | { |
---|
| 2643 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_WRITE) |
---|
| 2644 | { |
---|
| 2645 | std::vector<be_t> be_vector; |
---|
| 2646 | std::vector<data_t> data_vector; |
---|
| 2647 | be_vector.clear(); |
---|
| 2648 | data_vector.clear(); |
---|
| 2649 | for(size_t i=0; i<m_words; i++) |
---|
| 2650 | { |
---|
| 2651 | be_vector.push_back(r_write_be[i]); |
---|
| 2652 | data_vector.push_back(r_write_data[i]); |
---|
| 2653 | } |
---|
[346] | 2654 | m_trt.set(r_write_trt_index.read(), |
---|
[331] | 2655 | true, // read request to XRAM |
---|
| 2656 | m_nline[(vci_addr_t)(r_write_address.read())], |
---|
| 2657 | r_write_srcid.read(), |
---|
| 2658 | r_write_trdid.read(), |
---|
| 2659 | r_write_pktid.read(), |
---|
| 2660 | false, // not a processor read |
---|
| 2661 | 0, // not a single word |
---|
| 2662 | 0, // word index |
---|
| 2663 | be_vector, |
---|
| 2664 | data_vector); |
---|
| 2665 | r_write_fsm = WRITE_MISS_XRAM_REQ; |
---|
| 2666 | |
---|
| 2667 | #if DEBUG_MEMC_WRITE |
---|
| 2668 | if(m_debug_write_fsm) |
---|
| 2669 | { |
---|
| 2670 | std::cout << " <MEMC " << name() << ".WRITE_MISS_TRT_SET> Set a new entry in TRT" << std::endl; |
---|
| 2671 | } |
---|
| 2672 | #endif |
---|
| 2673 | } |
---|
| 2674 | break; |
---|
| 2675 | } |
---|
| 2676 | |
---|
| 2677 | ///////////////////////// |
---|
| 2678 | case WRITE_MISS_TRT_DATA: // update an entry in TRT (used as a Write Buffer) |
---|
| 2679 | { |
---|
| 2680 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_WRITE) |
---|
| 2681 | { |
---|
| 2682 | std::vector<be_t> be_vector; |
---|
| 2683 | std::vector<data_t> data_vector; |
---|
| 2684 | be_vector.clear(); |
---|
| 2685 | data_vector.clear(); |
---|
| 2686 | for(size_t i=0; i<m_words; i++) |
---|
| 2687 | { |
---|
| 2688 | be_vector.push_back(r_write_be[i]); |
---|
| 2689 | data_vector.push_back(r_write_data[i]); |
---|
| 2690 | } |
---|
[346] | 2691 | m_trt.write_data_mask(r_write_trt_index.read(), |
---|
[331] | 2692 | be_vector, |
---|
| 2693 | data_vector); |
---|
| 2694 | r_write_fsm = WRITE_RSP; |
---|
| 2695 | |
---|
| 2696 | #if DEBUG_MEMC_WRITE |
---|
| 2697 | if(m_debug_write_fsm) |
---|
| 2698 | { |
---|
| 2699 | std::cout << " <MEMC " << name() << ".WRITE_MISS_TRT_DATA> Modify an existing entry in TRT" << std::endl; |
---|
[346] | 2700 | m_trt.print(r_write_trt_index.read()); |
---|
[331] | 2701 | } |
---|
| 2702 | #endif |
---|
| 2703 | } |
---|
| 2704 | break; |
---|
| 2705 | } |
---|
| 2706 | |
---|
| 2707 | ///////////////////////// |
---|
| 2708 | case WRITE_MISS_XRAM_REQ: // send a GET request to IXR_CMD FSM |
---|
| 2709 | { |
---|
| 2710 | if(!r_write_to_ixr_cmd_req) |
---|
| 2711 | { |
---|
| 2712 | r_write_to_ixr_cmd_req = true; |
---|
| 2713 | r_write_to_ixr_cmd_write = false; |
---|
| 2714 | r_write_to_ixr_cmd_nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2715 | r_write_to_ixr_cmd_trdid = r_write_trt_index.read(); |
---|
| 2716 | r_write_fsm = WRITE_RSP; |
---|
| 2717 | |
---|
| 2718 | #if DEBUG_MEMC_WRITE |
---|
| 2719 | if(m_debug_write_fsm) |
---|
| 2720 | { |
---|
| 2721 | std::cout << " <MEMC " << name() << ".WRITE_MISS_XRAM_REQ> Post a GET request to the IXR_CMD FSM" << std::endl; |
---|
| 2722 | } |
---|
| 2723 | #endif |
---|
| 2724 | } |
---|
| 2725 | break; |
---|
| 2726 | } |
---|
| 2727 | |
---|
| 2728 | /////////////////////// |
---|
| 2729 | case WRITE_BC_TRT_LOCK: // Check TRT not full |
---|
| 2730 | { |
---|
| 2731 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_WRITE) |
---|
| 2732 | { |
---|
| 2733 | size_t wok_index = 0; |
---|
[346] | 2734 | bool wok = !m_trt.full(wok_index); |
---|
[331] | 2735 | if(wok) // set a new entry in TRT |
---|
| 2736 | { |
---|
| 2737 | r_write_trt_index = wok_index; |
---|
| 2738 | r_write_fsm = WRITE_BC_UPT_LOCK; |
---|
| 2739 | } |
---|
| 2740 | else // wait an empty entry in TRT |
---|
| 2741 | { |
---|
| 2742 | r_write_fsm = WRITE_WAIT; |
---|
| 2743 | } |
---|
| 2744 | |
---|
| 2745 | #if DEBUG_MEMC_WRITE |
---|
| 2746 | if(m_debug_write_fsm) |
---|
| 2747 | { |
---|
| 2748 | std::cout << " <MEMC " << name() << ".WRITE_BC_TRT_LOCK> Check TRT : wok = " |
---|
| 2749 | << wok << " / index = " << wok_index << std::endl; |
---|
| 2750 | } |
---|
| 2751 | #endif |
---|
| 2752 | } |
---|
| 2753 | break; |
---|
| 2754 | } |
---|
| 2755 | |
---|
| 2756 | ////////////////////// |
---|
| 2757 | case WRITE_BC_UPT_LOCK: // register BC transaction in UPT |
---|
| 2758 | { |
---|
| 2759 | if(r_alloc_upt_fsm.read() == ALLOC_UPT_WRITE) |
---|
| 2760 | { |
---|
| 2761 | bool wok = false; |
---|
| 2762 | size_t index = 0; |
---|
| 2763 | size_t srcid = r_write_srcid.read(); |
---|
| 2764 | size_t trdid = r_write_trdid.read(); |
---|
| 2765 | size_t pktid = r_write_pktid.read(); |
---|
| 2766 | addr_t nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2767 | size_t nb_copies = r_write_count.read(); |
---|
| 2768 | |
---|
[346] | 2769 | wok =m_upt.set(false, // it's an inval transaction |
---|
[331] | 2770 | true, // it's a broadcast |
---|
| 2771 | true, // it needs a response |
---|
| 2772 | srcid, |
---|
| 2773 | trdid, |
---|
| 2774 | pktid, |
---|
| 2775 | nline, |
---|
| 2776 | nb_copies, |
---|
| 2777 | index); |
---|
| 2778 | |
---|
| 2779 | #if DEBUG_MEMC_WRITE |
---|
| 2780 | if(m_debug_write_fsm) |
---|
| 2781 | { |
---|
| 2782 | if(wok) |
---|
| 2783 | { |
---|
| 2784 | std::cout << " <MEMC " << name() << ".WRITE_BC_UPT_LOCK> Register the broadcast inval in UPT / " |
---|
| 2785 | << " nb_copies = " << r_write_count.read() << std::endl; |
---|
| 2786 | } |
---|
| 2787 | } |
---|
| 2788 | #endif |
---|
| 2789 | r_write_upt_index = index; |
---|
| 2790 | |
---|
| 2791 | if(wok) r_write_fsm = WRITE_BC_DIR_INVAL; |
---|
| 2792 | else r_write_fsm = WRITE_WAIT; |
---|
| 2793 | } |
---|
| 2794 | break; |
---|
| 2795 | } |
---|
| 2796 | |
---|
| 2797 | //////////////////////// |
---|
| 2798 | case WRITE_BC_DIR_INVAL: |
---|
| 2799 | { |
---|
| 2800 | // Register a put transaction to XRAM in TRT |
---|
| 2801 | // and invalidate the line in directory |
---|
| 2802 | if((r_alloc_trt_fsm.read() != ALLOC_TRT_WRITE) || |
---|
| 2803 | (r_alloc_upt_fsm.read() != ALLOC_UPT_WRITE) || |
---|
| 2804 | (r_alloc_dir_fsm.read() != ALLOC_DIR_WRITE)) |
---|
| 2805 | { |
---|
| 2806 | std::cout << "VCI_MEM_CACHE ERROR " << name() << " WRITE_BC_DIR_INVAL state" << std::endl; |
---|
| 2807 | std::cout << "bad TRT, DIR, or UPT allocation" << std::endl; |
---|
| 2808 | exit(0); |
---|
| 2809 | } |
---|
| 2810 | |
---|
| 2811 | // register a write request to XRAM in TRT |
---|
[346] | 2812 | m_trt.set(r_write_trt_index.read(), |
---|
[331] | 2813 | false, // write request to XRAM |
---|
| 2814 | m_nline[(vci_addr_t)(r_write_address.read())], |
---|
| 2815 | 0, |
---|
| 2816 | 0, |
---|
| 2817 | 0, |
---|
| 2818 | false, // not a processor read |
---|
| 2819 | 0, // not a single word |
---|
| 2820 | 0, // word index |
---|
| 2821 | std::vector<be_t> (m_words,0), |
---|
| 2822 | std::vector<data_t> (m_words,0)); |
---|
| 2823 | |
---|
| 2824 | // invalidate directory entry |
---|
| 2825 | DirectoryEntry entry; |
---|
| 2826 | entry.valid = false; |
---|
| 2827 | entry.dirty = false; |
---|
| 2828 | entry.tag = 0; |
---|
| 2829 | entry.is_cnt = false; |
---|
| 2830 | entry.lock = false; |
---|
| 2831 | entry.owner.srcid = 0; |
---|
| 2832 | #if L1_MULTI_CACHE |
---|
| 2833 | entry.owner.cache_id= 0; |
---|
| 2834 | #endif |
---|
| 2835 | entry.owner.inst = false; |
---|
| 2836 | entry.ptr = 0; |
---|
| 2837 | entry.count = 0; |
---|
| 2838 | size_t set = m_y[(vci_addr_t)(r_write_address.read())]; |
---|
| 2839 | size_t way = r_write_way.read(); |
---|
| 2840 | |
---|
| 2841 | m_cache_directory.write(set, way, entry); |
---|
| 2842 | |
---|
| 2843 | #if DEBUG_MEMC_WRITE |
---|
| 2844 | if(m_debug_write_fsm) |
---|
| 2845 | { |
---|
| 2846 | std::cout << " <MEMC " << name() << ".WRITE_BC_DIR_INVAL> Invalidate the directory entry: @ = " |
---|
| 2847 | << r_write_address.read() << " / register the put transaction in TRT:" << std::endl; |
---|
| 2848 | } |
---|
| 2849 | #endif |
---|
| 2850 | r_write_fsm = WRITE_BC_CC_SEND; |
---|
| 2851 | break; |
---|
| 2852 | } |
---|
| 2853 | |
---|
| 2854 | ////////////////////// |
---|
| 2855 | case WRITE_BC_CC_SEND: // Post a coherence broadcast request to CC_SEND FSM |
---|
| 2856 | { |
---|
| 2857 | if(!r_write_to_cc_send_multi_req.read() && !r_write_to_cc_send_brdcast_req.read()) |
---|
| 2858 | { |
---|
| 2859 | r_write_to_cc_send_multi_req = false; |
---|
| 2860 | r_write_to_cc_send_brdcast_req = true; |
---|
| 2861 | r_write_to_cc_send_trdid = r_write_upt_index.read(); |
---|
| 2862 | r_write_to_cc_send_nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2863 | r_write_to_cc_send_index = 0; |
---|
| 2864 | r_write_to_cc_send_count = 0; |
---|
| 2865 | |
---|
| 2866 | for(size_t i=0; i<m_words ; i++) |
---|
| 2867 | { |
---|
| 2868 | r_write_to_cc_send_be[i]=0; |
---|
| 2869 | r_write_to_cc_send_data[i] = 0; |
---|
| 2870 | } |
---|
| 2871 | r_write_fsm = WRITE_BC_XRAM_REQ; |
---|
| 2872 | |
---|
| 2873 | #if DEBUG_MEMC_WRITE |
---|
| 2874 | if(m_debug_write_fsm) |
---|
| 2875 | { |
---|
| 2876 | std::cout << " <MEMC " << name() << ".WRITE_BC_CC_SEND> Post a broadcast request to CC_SEND FSM" << std::endl; |
---|
| 2877 | } |
---|
| 2878 | #endif |
---|
| 2879 | } |
---|
| 2880 | break; |
---|
| 2881 | } |
---|
| 2882 | |
---|
| 2883 | /////////////////////// |
---|
| 2884 | case WRITE_BC_XRAM_REQ: // Post a put request to IXR_CMD FSM |
---|
| 2885 | { |
---|
| 2886 | if(!r_write_to_ixr_cmd_req) |
---|
| 2887 | { |
---|
| 2888 | r_write_to_ixr_cmd_req = true; |
---|
| 2889 | r_write_to_ixr_cmd_write = true; |
---|
| 2890 | r_write_to_ixr_cmd_nline = m_nline[(vci_addr_t)(r_write_address.read())]; |
---|
| 2891 | r_write_to_ixr_cmd_trdid = r_write_trt_index.read(); |
---|
| 2892 | |
---|
| 2893 | for(size_t i=0; i<m_words; i++) r_write_to_ixr_cmd_data[i] = r_write_data[i]; |
---|
| 2894 | |
---|
| 2895 | r_write_fsm = WRITE_IDLE; |
---|
| 2896 | |
---|
| 2897 | #if DEBUG_MEMC_WRITE |
---|
| 2898 | if(m_debug_write_fsm) |
---|
| 2899 | { |
---|
| 2900 | std::cout << " <MEMC " << name() << ".WRITE_BC_XRAM_REQ> Post a put request to IXR_CMD FSM" << std::endl; |
---|
| 2901 | } |
---|
| 2902 | #endif |
---|
| 2903 | } |
---|
| 2904 | break; |
---|
| 2905 | } |
---|
| 2906 | } // end switch r_write_fsm |
---|
| 2907 | |
---|
| 2908 | /////////////////////////////////////////////////////////////////////// |
---|
| 2909 | // IXR_CMD FSM |
---|
| 2910 | /////////////////////////////////////////////////////////////////////// |
---|
| 2911 | // The IXR_CMD fsm controls the command packets to the XRAM : |
---|
| 2912 | // - It sends a single cell VCI read request to the XRAM in case of MISS |
---|
| 2913 | // posted by the READ, WRITE or CAS FSMs : the TRDID field contains |
---|
| 2914 | // the Transaction Tab index. |
---|
| 2915 | // The VCI response is a multi-cell packet : the N cells contain |
---|
| 2916 | // the N data words. |
---|
| 2917 | // - It sends a multi-cell VCI write when the XRAM_RSP FSM, WRITE FSM |
---|
| 2918 | // or CAS FSM request to save a dirty line to the XRAM. |
---|
| 2919 | // The VCI response is a single cell packet. |
---|
| 2920 | // This FSM handles requests from the READ, WRITE, CAS & XRAM_RSP FSMs |
---|
| 2921 | // with a round-robin priority. |
---|
| 2922 | //////////////////////////////////////////////////////////////////////// |
---|
| 2923 | |
---|
| 2924 | switch(r_ixr_cmd_fsm.read()) |
---|
| 2925 | { |
---|
| 2926 | //////////////////////// |
---|
| 2927 | case IXR_CMD_READ_IDLE: |
---|
| 2928 | if(r_write_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_WRITE_NLINE; |
---|
| 2929 | else if(r_cas_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_CAS_NLINE; |
---|
| 2930 | else if(r_xram_rsp_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_XRAM_DATA; |
---|
| 2931 | else if(r_read_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_READ_NLINE; |
---|
| 2932 | break; |
---|
| 2933 | //////////////////////// |
---|
| 2934 | case IXR_CMD_WRITE_IDLE: |
---|
| 2935 | if(r_cas_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_CAS_NLINE; |
---|
| 2936 | else if(r_xram_rsp_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_XRAM_DATA; |
---|
| 2937 | else if(r_read_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_READ_NLINE; |
---|
| 2938 | else if(r_write_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_WRITE_NLINE; |
---|
| 2939 | break; |
---|
| 2940 | //////////////////////// |
---|
| 2941 | case IXR_CMD_CAS_IDLE: |
---|
| 2942 | if(r_xram_rsp_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_XRAM_DATA; |
---|
| 2943 | else if(r_read_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_READ_NLINE; |
---|
| 2944 | else if(r_write_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_WRITE_NLINE; |
---|
| 2945 | else if(r_cas_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_CAS_NLINE; |
---|
| 2946 | break; |
---|
| 2947 | //////////////////////// |
---|
| 2948 | case IXR_CMD_XRAM_IDLE: |
---|
| 2949 | if(r_read_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_READ_NLINE; |
---|
| 2950 | else if(r_write_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_WRITE_NLINE; |
---|
| 2951 | else if(r_cas_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_CAS_NLINE; |
---|
| 2952 | else if(r_xram_rsp_to_ixr_cmd_req) r_ixr_cmd_fsm = IXR_CMD_XRAM_DATA; |
---|
| 2953 | break; |
---|
| 2954 | ///////////////////////// // send a get request to XRAM |
---|
| 2955 | case IXR_CMD_READ_NLINE: |
---|
| 2956 | if(p_vci_ixr.cmdack) |
---|
| 2957 | { |
---|
| 2958 | r_ixr_cmd_fsm = IXR_CMD_READ_IDLE; |
---|
| 2959 | r_read_to_ixr_cmd_req = false; |
---|
| 2960 | |
---|
| 2961 | #if DEBUG_MEMC_IXR_CMD |
---|
| 2962 | if(m_debug_ixr_cmd_fsm) |
---|
| 2963 | { |
---|
| 2964 | std::cout << " <MEMC " << name() << ".IXR_CMD_READ_NLINE> Send a get request to xram" << std::endl; |
---|
| 2965 | } |
---|
| 2966 | #endif |
---|
| 2967 | } |
---|
| 2968 | break; |
---|
| 2969 | ////////////////////////// |
---|
| 2970 | case IXR_CMD_WRITE_NLINE: // send a put or get command to XRAM |
---|
| 2971 | if(p_vci_ixr.cmdack) |
---|
| 2972 | { |
---|
| 2973 | if(r_write_to_ixr_cmd_write.read()) |
---|
| 2974 | { |
---|
| 2975 | if(r_ixr_cmd_cpt.read() == (m_words - 1)) |
---|
| 2976 | { |
---|
| 2977 | r_ixr_cmd_cpt = 0; |
---|
| 2978 | r_ixr_cmd_fsm = IXR_CMD_WRITE_IDLE; |
---|
| 2979 | r_write_to_ixr_cmd_req = false; |
---|
| 2980 | } |
---|
| 2981 | else |
---|
| 2982 | { |
---|
| 2983 | r_ixr_cmd_cpt = r_ixr_cmd_cpt + 1; |
---|
| 2984 | } |
---|
| 2985 | |
---|
| 2986 | #if DEBUG_MEMC_IXR_CMD |
---|
| 2987 | if(m_debug_ixr_cmd_fsm) |
---|
| 2988 | { |
---|
| 2989 | std::cout << " <MEMC " << name() << ".IXR_CMD_WRITE_NLINE> Send a put request to xram" << std::endl; |
---|
| 2990 | } |
---|
| 2991 | #endif |
---|
| 2992 | } |
---|
| 2993 | else |
---|
| 2994 | { |
---|
| 2995 | r_ixr_cmd_fsm = IXR_CMD_WRITE_IDLE; |
---|
| 2996 | r_write_to_ixr_cmd_req = false; |
---|
| 2997 | |
---|
| 2998 | #if DEBUG_MEMC_IXR_CMD |
---|
| 2999 | if(m_debug_ixr_cmd_fsm) |
---|
| 3000 | { |
---|
| 3001 | std::cout << " <MEMC " << name() << ".IXR_CMD_WRITE_NLINE> Send a get request to xram" << std::endl; |
---|
| 3002 | } |
---|
| 3003 | #endif |
---|
| 3004 | } |
---|
| 3005 | } |
---|
| 3006 | break; |
---|
| 3007 | ////////////////////// |
---|
| 3008 | case IXR_CMD_CAS_NLINE: // send a put or get command to XRAM |
---|
| 3009 | if(p_vci_ixr.cmdack) |
---|
| 3010 | { |
---|
| 3011 | if(r_cas_to_ixr_cmd_write.read()) |
---|
| 3012 | { |
---|
| 3013 | if(r_ixr_cmd_cpt.read() == (m_words - 1)) |
---|
| 3014 | { |
---|
| 3015 | r_ixr_cmd_cpt = 0; |
---|
| 3016 | r_ixr_cmd_fsm = IXR_CMD_CAS_IDLE; |
---|
| 3017 | r_cas_to_ixr_cmd_req = false; |
---|
| 3018 | } |
---|
| 3019 | else |
---|
| 3020 | { |
---|
| 3021 | r_ixr_cmd_cpt = r_ixr_cmd_cpt + 1; |
---|
| 3022 | } |
---|
| 3023 | |
---|
| 3024 | #if DEBUG_MEMC_IXR_CMD |
---|
| 3025 | if(m_debug_ixr_cmd_fsm) |
---|
| 3026 | { |
---|
| 3027 | std::cout << " <MEMC " << name() << ".IXR_CMD_CAS_NLINE> Send a put request to xram" << std::endl; |
---|
| 3028 | } |
---|
| 3029 | #endif |
---|
| 3030 | } |
---|
| 3031 | else |
---|
| 3032 | { |
---|
| 3033 | r_ixr_cmd_fsm = IXR_CMD_CAS_IDLE; |
---|
| 3034 | r_cas_to_ixr_cmd_req = false; |
---|
| 3035 | |
---|
| 3036 | #if DEBUG_MEMC_IXR_CMD |
---|
| 3037 | if(m_debug_ixr_cmd_fsm) |
---|
| 3038 | { |
---|
| 3039 | std::cout << " <MEMC " << name() << ".IXR_CMD_CAS_NLINE> Send a get request to xram" << std::endl; |
---|
| 3040 | } |
---|
| 3041 | #endif |
---|
| 3042 | } |
---|
| 3043 | } |
---|
| 3044 | break; |
---|
| 3045 | //////////////////////// |
---|
| 3046 | case IXR_CMD_XRAM_DATA: // send a put command to XRAM |
---|
| 3047 | if(p_vci_ixr.cmdack) |
---|
| 3048 | { |
---|
| 3049 | if(r_ixr_cmd_cpt.read() == (m_words - 1)) |
---|
| 3050 | { |
---|
| 3051 | r_ixr_cmd_cpt = 0; |
---|
| 3052 | r_ixr_cmd_fsm = IXR_CMD_XRAM_IDLE; |
---|
| 3053 | r_xram_rsp_to_ixr_cmd_req = false; |
---|
| 3054 | } |
---|
| 3055 | else |
---|
| 3056 | { |
---|
| 3057 | r_ixr_cmd_cpt = r_ixr_cmd_cpt + 1; |
---|
| 3058 | } |
---|
| 3059 | |
---|
| 3060 | #if DEBUG_MEMC_IXR_CMD |
---|
| 3061 | if(m_debug_ixr_cmd_fsm) |
---|
| 3062 | { |
---|
| 3063 | std::cout << " <MEMC " << name() << ".IXR_CMD_XRAM_DATA> Send a put request to xram" << std::endl; |
---|
| 3064 | } |
---|
| 3065 | #endif |
---|
| 3066 | } |
---|
| 3067 | break; |
---|
| 3068 | |
---|
| 3069 | } // end switch r_ixr_cmd_fsm |
---|
| 3070 | |
---|
| 3071 | //////////////////////////////////////////////////////////////////////////// |
---|
| 3072 | // IXR_RSP FSM |
---|
| 3073 | //////////////////////////////////////////////////////////////////////////// |
---|
| 3074 | // The IXR_RSP FSM receives the response packets from the XRAM, |
---|
| 3075 | // for both put transaction, and get transaction. |
---|
| 3076 | // |
---|
| 3077 | // - A response to a put request is a single-cell VCI packet. |
---|
| 3078 | // The Transaction Tab index is contained in the RTRDID field. |
---|
| 3079 | // The FSM takes the lock protecting the TRT, and the corresponding |
---|
| 3080 | // entry is erased. |
---|
| 3081 | // |
---|
| 3082 | // - A response to a get request is a multi-cell VCI packet. |
---|
| 3083 | // The Transaction Tab index is contained in the RTRDID field. |
---|
| 3084 | // The N cells contain the N words of the cache line in the RDATA field. |
---|
| 3085 | // The FSM takes the lock protecting the TRT to store the line in the TRT |
---|
| 3086 | // (taking into account the write requests already stored in the TRT). |
---|
| 3087 | // When the line is completely written, the corresponding rok signal is set. |
---|
| 3088 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 3089 | |
---|
| 3090 | switch(r_ixr_rsp_fsm.read()) |
---|
| 3091 | { |
---|
| 3092 | ////////////////// |
---|
| 3093 | case IXR_RSP_IDLE: // test if it's a get or a put transaction |
---|
| 3094 | { |
---|
| 3095 | if(p_vci_ixr.rspval.read()) |
---|
| 3096 | { |
---|
| 3097 | r_ixr_rsp_cpt = 0; |
---|
| 3098 | r_ixr_rsp_trt_index = p_vci_ixr.rtrdid.read(); |
---|
| 3099 | if(p_vci_ixr.reop.read() && !(p_vci_ixr.rerror.read() &0x1)) // put transaction |
---|
| 3100 | { |
---|
| 3101 | r_ixr_rsp_fsm = IXR_RSP_ACK; |
---|
| 3102 | |
---|
| 3103 | #if DEBUG_MEMC_IXR_RSP |
---|
| 3104 | if(m_debug_ixr_rsp_fsm) |
---|
| 3105 | { |
---|
| 3106 | std::cout << " <MEMC " << name() << ".IXR_RSP_IDLE> Response from XRAM to a put transaction" << std::endl; |
---|
| 3107 | } |
---|
| 3108 | #endif |
---|
| 3109 | } |
---|
| 3110 | else // get transaction |
---|
| 3111 | { |
---|
| 3112 | r_ixr_rsp_fsm = IXR_RSP_TRT_READ; |
---|
| 3113 | |
---|
| 3114 | #if DEBUG_MEMC_IXR_RSP |
---|
| 3115 | if(m_debug_ixr_rsp_fsm) |
---|
| 3116 | { |
---|
| 3117 | std::cout << " <MEMC " << name() << ".IXR_RSP_IDLE> Response from XRAM to a get transaction" << std::endl; |
---|
| 3118 | } |
---|
| 3119 | #endif |
---|
| 3120 | } |
---|
| 3121 | } |
---|
| 3122 | break; |
---|
| 3123 | } |
---|
| 3124 | //////////////////////// |
---|
| 3125 | case IXR_RSP_ACK: // Aknowledge the VCI response |
---|
| 3126 | { |
---|
| 3127 | if(p_vci_ixr.rspval.read()) r_ixr_rsp_fsm = IXR_RSP_TRT_ERASE; |
---|
| 3128 | |
---|
| 3129 | #if DEBUG_MEMC_IXR_RSP |
---|
| 3130 | if(m_debug_ixr_rsp_fsm) |
---|
| 3131 | { |
---|
| 3132 | std::cout << " <MEMC " << name() << ".IXR_RSP_ACK>" << std::endl; |
---|
| 3133 | } |
---|
| 3134 | #endif |
---|
| 3135 | break; |
---|
| 3136 | } |
---|
| 3137 | //////////////////////// |
---|
| 3138 | case IXR_RSP_TRT_ERASE: // erase the entry in the TRT |
---|
| 3139 | { |
---|
| 3140 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_IXR_RSP) |
---|
| 3141 | { |
---|
[346] | 3142 | m_trt.erase(r_ixr_rsp_trt_index.read()); |
---|
[331] | 3143 | r_ixr_rsp_fsm = IXR_RSP_IDLE; |
---|
| 3144 | |
---|
| 3145 | #if DEBUG_MEMC_IXR_RSP |
---|
| 3146 | if(m_debug_ixr_rsp_fsm) |
---|
| 3147 | { |
---|
| 3148 | std::cout << " <MEMC " << name() << ".IXR_RSP_TRT_ERASE> Erase TRT entry " |
---|
| 3149 | << r_ixr_rsp_trt_index.read() << std::endl; |
---|
| 3150 | } |
---|
| 3151 | #endif |
---|
| 3152 | } |
---|
| 3153 | break; |
---|
| 3154 | } |
---|
| 3155 | /////////////////////// |
---|
| 3156 | case IXR_RSP_TRT_READ: // write data in the TRT |
---|
| 3157 | { |
---|
| 3158 | if((r_alloc_trt_fsm.read() == ALLOC_TRT_IXR_RSP) && p_vci_ixr.rspval) |
---|
| 3159 | { |
---|
| 3160 | size_t index = r_ixr_rsp_trt_index.read(); |
---|
| 3161 | bool eop = p_vci_ixr.reop.read(); |
---|
| 3162 | data_t data = p_vci_ixr.rdata.read(); |
---|
| 3163 | bool error = ((p_vci_ixr.rerror.read() & 0x1) == 1); |
---|
| 3164 | assert(((eop == (r_ixr_rsp_cpt.read() == (m_words-1))) || p_vci_ixr.rerror.read()) |
---|
| 3165 | and "Error in VCI_MEM_CACHE : invalid length for a response from XRAM"); |
---|
[346] | 3166 | m_trt.write_rsp(index, |
---|
[331] | 3167 | r_ixr_rsp_cpt.read(), |
---|
| 3168 | data, |
---|
| 3169 | error); |
---|
| 3170 | r_ixr_rsp_cpt = r_ixr_rsp_cpt.read() + 1; |
---|
| 3171 | if(eop) |
---|
| 3172 | { |
---|
| 3173 | r_ixr_rsp_to_xram_rsp_rok[r_ixr_rsp_trt_index.read()]=true; |
---|
| 3174 | r_ixr_rsp_fsm = IXR_RSP_IDLE; |
---|
| 3175 | } |
---|
| 3176 | |
---|
| 3177 | #if DEBUG_MEMC_IXR_RSP |
---|
| 3178 | if(m_debug_ixr_rsp_fsm) |
---|
| 3179 | { |
---|
| 3180 | std::cout << " <MEMC " << name() << ".IXR_RSP_TRT_READ> Writing a word in TRT : " |
---|
| 3181 | << " index = " << std::dec << index |
---|
| 3182 | << " / word = " << r_ixr_rsp_cpt.read() |
---|
| 3183 | << " / data = " << std::hex << data << std::endl; |
---|
| 3184 | } |
---|
| 3185 | #endif |
---|
| 3186 | } |
---|
| 3187 | break; |
---|
| 3188 | } |
---|
| 3189 | } // end swich r_ixr_rsp_fsm |
---|
| 3190 | |
---|
| 3191 | //////////////////////////////////////////////////////////////////////////// |
---|
| 3192 | // XRAM_RSP FSM |
---|
| 3193 | //////////////////////////////////////////////////////////////////////////// |
---|
| 3194 | // The XRAM_RSP FSM handles the incoming cache lines from the XRAM. |
---|
| 3195 | // The cache line has been written in the TRT by the IXR_CMD_FSM. |
---|
| 3196 | // As the IXR_RSP FSM and the XRAM_RSP FSM are running in parallel, |
---|
| 3197 | // there is as many flip-flops r_ixr_rsp_to_xram_rsp_rok[i] |
---|
| 3198 | // as the number of entries in the TRT, that are handled with |
---|
| 3199 | // a round-robin priority... |
---|
| 3200 | // |
---|
| 3201 | // When a response is available, the corresponding TRT entry |
---|
| 3202 | // must be copied in a local buffer to be written in the cache. |
---|
| 3203 | // The FSM takes the lock protecting the TRT, and the lock protecting the DIR. |
---|
| 3204 | // It selects a cache slot and writes the line in the cache. |
---|
| 3205 | // If it was a read MISS, the XRAM_RSP FSM send a request to the TGT_RSP |
---|
| 3206 | // FSM to return the cache line to the registered processor. |
---|
| 3207 | // If there is no empty slot, a victim line is evicted, and |
---|
| 3208 | // invalidate requests are sent to the L1 caches containing copies. |
---|
| 3209 | // If this line is dirty, the XRAM_RSP FSM send a request to the IXR_CMD |
---|
| 3210 | // FSM to save the victim line to the XRAM, and register the write transaction |
---|
| 3211 | // in the TRT (using the entry previously used by the read transaction). |
---|
| 3212 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 3213 | |
---|
| 3214 | switch(r_xram_rsp_fsm.read()) |
---|
| 3215 | { |
---|
| 3216 | /////////////////// |
---|
| 3217 | case XRAM_RSP_IDLE: // scan the XRAM responses to get the TRT index (round robin) |
---|
| 3218 | { |
---|
| 3219 | size_t ptr = r_xram_rsp_trt_index.read(); |
---|
[346] | 3220 | size_t lines = m_trt_lines; |
---|
[331] | 3221 | for(size_t i=0 ; i<lines ; i++) |
---|
| 3222 | { |
---|
| 3223 | size_t index= (i+ptr+1) %lines; |
---|
| 3224 | if(r_ixr_rsp_to_xram_rsp_rok[index]) |
---|
| 3225 | { |
---|
| 3226 | r_xram_rsp_trt_index = index; |
---|
| 3227 | r_ixr_rsp_to_xram_rsp_rok[index] = false; |
---|
| 3228 | r_xram_rsp_fsm = XRAM_RSP_DIR_LOCK; |
---|
| 3229 | |
---|
| 3230 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3231 | if(m_debug_xram_rsp_fsm) |
---|
| 3232 | { |
---|
| 3233 | std::cout << " <MEMC " << name() << ".XRAM_RSP_IDLE> Available cache line in TRT:" |
---|
| 3234 | << " index = " << std::dec << index << std::endl; |
---|
| 3235 | } |
---|
| 3236 | #endif |
---|
| 3237 | break; |
---|
| 3238 | } |
---|
| 3239 | } |
---|
| 3240 | break; |
---|
| 3241 | } |
---|
| 3242 | /////////////////////// |
---|
| 3243 | case XRAM_RSP_DIR_LOCK: |
---|
| 3244 | // Takes the lock on the directory |
---|
| 3245 | // Takes the lock on TRT |
---|
| 3246 | // Copy the TRT entry in a local buffer |
---|
| 3247 | { |
---|
| 3248 | if((r_alloc_dir_fsm.read() == ALLOC_DIR_XRAM_RSP) && |
---|
| 3249 | (r_alloc_trt_fsm.read() == ALLOC_TRT_XRAM_RSP)) |
---|
| 3250 | { |
---|
| 3251 | // copy the TRT entry in the r_xram_rsp_trt_buf local buffer |
---|
| 3252 | size_t index = r_xram_rsp_trt_index.read(); |
---|
| 3253 | |
---|
[346] | 3254 | TransactionTabEntry trt_entry(m_trt.read(index)); |
---|
[331] | 3255 | r_xram_rsp_trt_buf.copy(trt_entry); // TRT entry local buffer |
---|
| 3256 | |
---|
| 3257 | r_xram_rsp_fsm = XRAM_RSP_TRT_COPY; |
---|
| 3258 | |
---|
| 3259 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3260 | if(m_debug_xram_rsp_fsm) |
---|
| 3261 | { |
---|
| 3262 | std::cout << " <MEMC " << name() << ".XRAM_RSP_DIR_LOCK> Get access to directory" << std::endl; |
---|
| 3263 | } |
---|
| 3264 | #endif |
---|
| 3265 | } |
---|
| 3266 | break; |
---|
| 3267 | } |
---|
| 3268 | /////////////////////// |
---|
| 3269 | case XRAM_RSP_TRT_COPY: |
---|
| 3270 | // Select a victim cache line |
---|
| 3271 | { |
---|
| 3272 | if((r_alloc_trt_fsm.read() == ALLOC_TRT_XRAM_RSP)) |
---|
| 3273 | { |
---|
| 3274 | // selects & extracts a victim line from cache |
---|
| 3275 | size_t way = 0; |
---|
| 3276 | size_t set = m_y[(vci_addr_t)(r_xram_rsp_trt_buf.nline * m_words * 4)]; |
---|
| 3277 | |
---|
| 3278 | DirectoryEntry victim(m_cache_directory.select(set, way)); |
---|
| 3279 | |
---|
| 3280 | bool inval = (victim.count && victim.valid) ; |
---|
| 3281 | |
---|
| 3282 | // copy the victim line in a local buffer |
---|
| 3283 | m_cache_data.read_line(way, set, r_xram_rsp_victim_data); |
---|
| 3284 | |
---|
| 3285 | r_xram_rsp_victim_copy = victim.owner.srcid; |
---|
| 3286 | #if L1_MULTI_CACHE |
---|
| 3287 | r_xram_rsp_victim_copy_cache= victim.owner.cache_id; |
---|
| 3288 | #endif |
---|
| 3289 | r_xram_rsp_victim_copy_inst = victim.owner.inst; |
---|
| 3290 | r_xram_rsp_victim_count = victim.count; |
---|
| 3291 | r_xram_rsp_victim_ptr = victim.ptr; |
---|
| 3292 | r_xram_rsp_victim_way = way; |
---|
| 3293 | r_xram_rsp_victim_set = set; |
---|
| 3294 | r_xram_rsp_victim_nline = victim.tag*m_sets + set; |
---|
| 3295 | r_xram_rsp_victim_is_cnt = victim.is_cnt; |
---|
| 3296 | r_xram_rsp_victim_inval = inval ; |
---|
| 3297 | r_xram_rsp_victim_dirty = victim.dirty; |
---|
| 3298 | |
---|
| 3299 | if(!r_xram_rsp_trt_buf.rerror) |
---|
| 3300 | { |
---|
| 3301 | r_xram_rsp_fsm = XRAM_RSP_INVAL_LOCK; |
---|
| 3302 | } |
---|
| 3303 | else |
---|
| 3304 | { |
---|
| 3305 | r_xram_rsp_fsm = XRAM_RSP_ERROR_ERASE; |
---|
| 3306 | } |
---|
| 3307 | |
---|
| 3308 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3309 | if(m_debug_xram_rsp_fsm) |
---|
| 3310 | { |
---|
| 3311 | std::cout << " <MEMC " << name() << ".XRAM_RSP_TRT_COPY> Select a slot: " |
---|
| 3312 | << " way = " << std::dec << way |
---|
| 3313 | << " / set = " << set |
---|
| 3314 | << " / inval_required = " << inval << std::endl; |
---|
| 3315 | } |
---|
| 3316 | #endif |
---|
| 3317 | } |
---|
| 3318 | else |
---|
| 3319 | { |
---|
| 3320 | std::cout << "VCI_MEM_CACHE ERROR " << name() |
---|
| 3321 | << " XRAM_RSP_TRT_COPY state" << std::endl |
---|
| 3322 | << "bad TRT allocation" << std::endl; |
---|
| 3323 | |
---|
| 3324 | exit(0); |
---|
| 3325 | } |
---|
| 3326 | break; |
---|
| 3327 | } |
---|
| 3328 | ///////////////////////// |
---|
| 3329 | case XRAM_RSP_INVAL_LOCK: // check a possible pending inval |
---|
| 3330 | { |
---|
| 3331 | if(r_alloc_upt_fsm == ALLOC_UPT_XRAM_RSP) |
---|
| 3332 | { |
---|
| 3333 | size_t index; |
---|
[346] | 3334 | if(m_upt.search_inval(r_xram_rsp_trt_buf.nline, index)) |
---|
[331] | 3335 | { |
---|
| 3336 | r_xram_rsp_fsm = XRAM_RSP_INVAL_WAIT; |
---|
| 3337 | |
---|
| 3338 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3339 | if(m_debug_xram_rsp_fsm) |
---|
| 3340 | { |
---|
| 3341 | std::cout << " <MEMC " << name() << ".XRAM_RSP_INVAL_LOCK> Get acces to UPT," |
---|
| 3342 | << " but an invalidation is already registered at this address" << std::endl; |
---|
[346] | 3343 | m_upt.print(); |
---|
[331] | 3344 | } |
---|
| 3345 | #endif |
---|
| 3346 | |
---|
| 3347 | } |
---|
[346] | 3348 | else if(m_upt.is_full() && r_xram_rsp_victim_inval.read()) |
---|
[331] | 3349 | { |
---|
| 3350 | r_xram_rsp_fsm = XRAM_RSP_INVAL_WAIT; |
---|
| 3351 | |
---|
| 3352 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3353 | if(m_debug_xram_rsp_fsm) |
---|
| 3354 | { |
---|
| 3355 | std::cout << " <MEMC " << name() << ".XRAM_RSP_INVAL_LOCK> Get acces to UPT," |
---|
| 3356 | << " but the table is full" << std::endl; |
---|
[346] | 3357 | m_upt.print(); |
---|
[331] | 3358 | } |
---|
| 3359 | #endif |
---|
| 3360 | } |
---|
| 3361 | else |
---|
| 3362 | { |
---|
| 3363 | r_xram_rsp_fsm = XRAM_RSP_DIR_UPDT; |
---|
| 3364 | |
---|
| 3365 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3366 | if(m_debug_xram_rsp_fsm) |
---|
| 3367 | { |
---|
| 3368 | std::cout << " <MEMC " << name() << ".XRAM_RSP_INVAL_LOCK> Get acces to UPT" << std::endl; |
---|
| 3369 | } |
---|
| 3370 | #endif |
---|
| 3371 | } |
---|
| 3372 | } |
---|
| 3373 | break; |
---|
| 3374 | } |
---|
| 3375 | ///////////////////////// |
---|
| 3376 | case XRAM_RSP_INVAL_WAIT: // returns to DIR_LOCK to retry |
---|
| 3377 | { |
---|
| 3378 | r_xram_rsp_fsm = XRAM_RSP_DIR_LOCK; |
---|
| 3379 | break; |
---|
| 3380 | } |
---|
| 3381 | /////////////////////// |
---|
| 3382 | case XRAM_RSP_DIR_UPDT: // updates the cache (both data & directory) |
---|
| 3383 | // and possibly set an inval request in UPT |
---|
| 3384 | { |
---|
| 3385 | // signals generation |
---|
| 3386 | // check if this is an instruction read, this means pktid is either |
---|
| 3387 | // TYPE_READ_INS_UNC 0bX010 with TSAR encoding |
---|
| 3388 | // TYPE_READ_INS_MISS 0bX011 with TSAR encoding |
---|
| 3389 | bool inst_read = (r_xram_rsp_trt_buf.pktid & 0x2) && r_xram_rsp_trt_buf.proc_read; |
---|
| 3390 | // check if this is a cached read, this means pktid is either |
---|
| 3391 | // TYPE_READ_DATA_MISS 0bX001 with TSAR encoding |
---|
| 3392 | // TYPE_READ_INS_MISS 0bX011 with TSAR encoding |
---|
| 3393 | bool cached_read = (r_xram_rsp_trt_buf.pktid & 0x1) && r_xram_rsp_trt_buf.proc_read; |
---|
| 3394 | |
---|
| 3395 | // update data |
---|
| 3396 | size_t set = r_xram_rsp_victim_set.read(); |
---|
| 3397 | size_t way = r_xram_rsp_victim_way.read(); |
---|
| 3398 | for(size_t word=0; word<m_words ; word++) |
---|
| 3399 | { |
---|
| 3400 | m_cache_data.write(way, set, word, r_xram_rsp_trt_buf.wdata[word]); |
---|
| 3401 | |
---|
| 3402 | if(m_monitor_ok) |
---|
| 3403 | { |
---|
| 3404 | vci_addr_t address = r_xram_rsp_trt_buf.nline<<6 | word<<2; |
---|
| 3405 | check_monitor("XRAM_RSP_DIR_UPDT", address, r_xram_rsp_trt_buf.wdata[word]); |
---|
| 3406 | } |
---|
| 3407 | } |
---|
| 3408 | // compute dirty |
---|
| 3409 | bool dirty = false; |
---|
| 3410 | for(size_t i=0; i<m_words; i++) dirty = dirty || (r_xram_rsp_trt_buf.wdata_be[i] != 0); |
---|
| 3411 | // update directory |
---|
| 3412 | DirectoryEntry entry; |
---|
| 3413 | entry.valid = true; |
---|
| 3414 | entry.is_cnt = false; |
---|
| 3415 | entry.lock = false; |
---|
| 3416 | entry.dirty = dirty; |
---|
| 3417 | entry.tag = r_xram_rsp_trt_buf.nline / m_sets; |
---|
| 3418 | entry.ptr = 0; |
---|
| 3419 | if(cached_read) |
---|
| 3420 | { |
---|
| 3421 | entry.owner.srcid = r_xram_rsp_trt_buf.srcid; |
---|
| 3422 | #if L1_MULTI_CACHE |
---|
| 3423 | entry.owner.cache_id= r_xram_rsp_trt_buf.pktid; |
---|
| 3424 | #endif |
---|
| 3425 | entry.owner.inst = inst_read; |
---|
| 3426 | entry.count = 1; |
---|
| 3427 | } |
---|
| 3428 | else |
---|
| 3429 | { |
---|
| 3430 | entry.owner.srcid = 0; |
---|
| 3431 | #if L1_MULTI_CACHE |
---|
| 3432 | entry.owner.cache_id = 0; |
---|
| 3433 | #endif |
---|
| 3434 | entry.owner.inst = 0; |
---|
| 3435 | entry.count = 0; |
---|
| 3436 | } |
---|
| 3437 | m_cache_directory.write(set, way, entry); |
---|
| 3438 | |
---|
| 3439 | if(r_xram_rsp_victim_inval.read()) |
---|
| 3440 | { |
---|
| 3441 | bool brdcast = r_xram_rsp_victim_is_cnt.read(); |
---|
| 3442 | size_t index = 0; |
---|
| 3443 | size_t count_copies = r_xram_rsp_victim_count.read(); |
---|
| 3444 | |
---|
[346] | 3445 | bool wok = m_upt.set(false, // it's an inval transaction |
---|
[331] | 3446 | brdcast, // set brdcast bit |
---|
| 3447 | false, // it does not need a response |
---|
| 3448 | 0, // srcid |
---|
| 3449 | 0, // trdid |
---|
| 3450 | 0, // pktid |
---|
| 3451 | r_xram_rsp_victim_nline.read(), |
---|
| 3452 | count_copies, |
---|
| 3453 | index); |
---|
| 3454 | r_xram_rsp_upt_index = index; |
---|
| 3455 | |
---|
| 3456 | if(!wok) |
---|
| 3457 | { |
---|
| 3458 | std::cout << "VCI_MEM_CACHE ERROR " << name() << " XRAM_RSP_HEAP_LAST state" << std::endl; |
---|
| 3459 | std::cout << "an update_tab entry was free but write is unsuccessful" << std::endl; |
---|
| 3460 | exit(0); |
---|
| 3461 | } |
---|
| 3462 | } |
---|
| 3463 | |
---|
| 3464 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3465 | if(m_debug_xram_rsp_fsm) |
---|
| 3466 | { |
---|
| 3467 | std::cout << " <MEMC " << name() << ".XRAM_RSP_DIR_UPDT> Directory update: " |
---|
| 3468 | << " way = " << std::dec << way |
---|
| 3469 | << " / set = " << set |
---|
[338] | 3470 | << " / owner_id = " << entry.owner.srcid |
---|
| 3471 | << " / owner_ins = " << entry.owner.inst |
---|
[331] | 3472 | << " / count = " << entry.count |
---|
| 3473 | << " / is_cnt = " << entry.is_cnt << std::endl; |
---|
| 3474 | if(r_xram_rsp_victim_inval.read()) |
---|
| 3475 | std::cout << " Invalidation request for victim line " |
---|
| 3476 | << std::hex << r_xram_rsp_victim_nline.read() |
---|
| 3477 | << " / broadcast = " << r_xram_rsp_victim_is_cnt.read() << std::endl; |
---|
| 3478 | } |
---|
| 3479 | #endif |
---|
| 3480 | |
---|
| 3481 | // If the victim is not dirty, we don't need another XRAM put transaction, |
---|
| 3482 | // and we canwe erase the TRT entry |
---|
[346] | 3483 | if(!r_xram_rsp_victim_dirty.read()) m_trt.erase(r_xram_rsp_trt_index.read()); |
---|
[331] | 3484 | |
---|
| 3485 | // Next state |
---|
| 3486 | if(r_xram_rsp_victim_dirty.read()) r_xram_rsp_fsm = XRAM_RSP_TRT_DIRTY; |
---|
| 3487 | else if(r_xram_rsp_trt_buf.proc_read) r_xram_rsp_fsm = XRAM_RSP_DIR_RSP; |
---|
| 3488 | else if(r_xram_rsp_victim_inval.read()) r_xram_rsp_fsm = XRAM_RSP_INVAL; |
---|
| 3489 | else r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3490 | break; |
---|
| 3491 | } |
---|
| 3492 | //////////////////////// |
---|
| 3493 | case XRAM_RSP_TRT_DIRTY: // set the TRT entry (write to XRAM) if the victim is dirty |
---|
| 3494 | { |
---|
| 3495 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_XRAM_RSP) |
---|
| 3496 | { |
---|
[346] | 3497 | m_trt.set(r_xram_rsp_trt_index.read(), |
---|
[331] | 3498 | false, // write to XRAM |
---|
| 3499 | r_xram_rsp_victim_nline.read(), // line index |
---|
| 3500 | 0, |
---|
| 3501 | 0, |
---|
| 3502 | 0, |
---|
| 3503 | false, |
---|
| 3504 | 0, |
---|
| 3505 | 0, |
---|
| 3506 | std::vector<be_t> (m_words,0), |
---|
| 3507 | std::vector<data_t> (m_words,0)); |
---|
| 3508 | |
---|
| 3509 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3510 | if(m_debug_xram_rsp_fsm) |
---|
| 3511 | { |
---|
| 3512 | std::cout << " <MEMC " << name() << ".XRAM_RSP_TRT_DIRTY> Set TRT entry for the put transaction:" |
---|
| 3513 | << " dirty victim line = " << r_xram_rsp_victim_nline.read() << std::endl; |
---|
| 3514 | } |
---|
| 3515 | #endif |
---|
| 3516 | if(r_xram_rsp_trt_buf.proc_read) r_xram_rsp_fsm = XRAM_RSP_DIR_RSP; |
---|
| 3517 | else if(r_xram_rsp_victim_inval.read()) r_xram_rsp_fsm = XRAM_RSP_INVAL; |
---|
| 3518 | else r_xram_rsp_fsm = XRAM_RSP_WRITE_DIRTY; |
---|
| 3519 | } |
---|
| 3520 | break; |
---|
| 3521 | } |
---|
| 3522 | ////////////////////// |
---|
| 3523 | case XRAM_RSP_DIR_RSP: // Request a response to TGT_RSP FSM |
---|
| 3524 | { |
---|
| 3525 | if(!r_xram_rsp_to_tgt_rsp_req.read()) |
---|
| 3526 | { |
---|
| 3527 | r_xram_rsp_to_tgt_rsp_srcid = r_xram_rsp_trt_buf.srcid; |
---|
| 3528 | r_xram_rsp_to_tgt_rsp_trdid = r_xram_rsp_trt_buf.trdid; |
---|
| 3529 | r_xram_rsp_to_tgt_rsp_pktid = r_xram_rsp_trt_buf.pktid; |
---|
| 3530 | for(size_t i=0; i < m_words; i++) r_xram_rsp_to_tgt_rsp_data[i] = r_xram_rsp_trt_buf.wdata[i]; |
---|
| 3531 | r_xram_rsp_to_tgt_rsp_word = r_xram_rsp_trt_buf.word_index; |
---|
| 3532 | r_xram_rsp_to_tgt_rsp_length = r_xram_rsp_trt_buf.read_length; |
---|
| 3533 | r_xram_rsp_to_tgt_rsp_ll_key = r_xram_rsp_trt_buf.ll_key; |
---|
| 3534 | r_xram_rsp_to_tgt_rsp_rerror = false; |
---|
| 3535 | r_xram_rsp_to_tgt_rsp_req = true; |
---|
| 3536 | |
---|
| 3537 | if(r_xram_rsp_victim_inval) r_xram_rsp_fsm = XRAM_RSP_INVAL; |
---|
| 3538 | else if(r_xram_rsp_victim_dirty) r_xram_rsp_fsm = XRAM_RSP_WRITE_DIRTY; |
---|
| 3539 | else r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3540 | |
---|
| 3541 | |
---|
| 3542 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3543 | if(m_debug_xram_rsp_fsm) |
---|
| 3544 | { |
---|
| 3545 | std::cout << " <MEMC " << name() << ".XRAM_RSP_DIR_RSP> Request the TGT_RSP FSM to return data:" |
---|
| 3546 | << " rsrcid = " << std::dec << r_xram_rsp_trt_buf.srcid |
---|
| 3547 | << " / address = " << std::hex << r_xram_rsp_trt_buf.nline*m_words*4 |
---|
| 3548 | << " / nwords = " << std::dec << r_xram_rsp_trt_buf.read_length << std::endl; |
---|
| 3549 | } |
---|
| 3550 | #endif |
---|
| 3551 | } |
---|
| 3552 | break; |
---|
| 3553 | } |
---|
| 3554 | //////////////////// |
---|
| 3555 | case XRAM_RSP_INVAL: // send invalidate request to CC_SEND FSM |
---|
| 3556 | { |
---|
| 3557 | if(!r_xram_rsp_to_cc_send_multi_req.read() && |
---|
| 3558 | !r_xram_rsp_to_cc_send_brdcast_req.read()) |
---|
| 3559 | { |
---|
| 3560 | bool multi_req = !r_xram_rsp_victim_is_cnt.read(); |
---|
| 3561 | bool last_multi_req = multi_req && (r_xram_rsp_victim_count.read() == 1); |
---|
| 3562 | bool not_last_multi_req = multi_req && (r_xram_rsp_victim_count.read() != 1); |
---|
| 3563 | |
---|
| 3564 | r_xram_rsp_to_cc_send_multi_req = last_multi_req; |
---|
| 3565 | r_xram_rsp_to_cc_send_brdcast_req = r_xram_rsp_victim_is_cnt.read(); |
---|
| 3566 | r_xram_rsp_to_cc_send_nline = r_xram_rsp_victim_nline.read(); |
---|
| 3567 | r_xram_rsp_to_cc_send_trdid = r_xram_rsp_upt_index; |
---|
| 3568 | xram_rsp_to_cc_send_fifo_srcid = r_xram_rsp_victim_copy.read(); |
---|
| 3569 | xram_rsp_to_cc_send_fifo_inst = r_xram_rsp_victim_copy_inst.read(); |
---|
| 3570 | #if L1_MULTI_CACHE |
---|
| 3571 | xram_rsp_to_cc_send_fifo_cache_id = r_xram_rsp_victim_copy_cache.read(); |
---|
| 3572 | #endif |
---|
| 3573 | xram_rsp_to_cc_send_fifo_put = multi_req; |
---|
| 3574 | r_xram_rsp_next_ptr = r_xram_rsp_victim_ptr.read(); |
---|
| 3575 | |
---|
| 3576 | if(r_xram_rsp_victim_dirty) r_xram_rsp_fsm = XRAM_RSP_WRITE_DIRTY; |
---|
| 3577 | else if(not_last_multi_req) r_xram_rsp_fsm = XRAM_RSP_HEAP_REQ; |
---|
| 3578 | else r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3579 | |
---|
| 3580 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3581 | if(m_debug_xram_rsp_fsm) |
---|
| 3582 | { |
---|
| 3583 | std::cout << " <MEMC " << name() << ".XRAM_RSP_INVAL> Send an inval request to CC_SEND FSM:" |
---|
| 3584 | << " victim line = " << r_xram_rsp_victim_nline.read() << std::endl; |
---|
| 3585 | } |
---|
| 3586 | #endif |
---|
| 3587 | } |
---|
| 3588 | break; |
---|
| 3589 | } |
---|
| 3590 | ////////////////////////// |
---|
| 3591 | case XRAM_RSP_WRITE_DIRTY: // send a write request to IXR_CMD FSM |
---|
| 3592 | { |
---|
| 3593 | if(!r_xram_rsp_to_ixr_cmd_req.read()) |
---|
| 3594 | { |
---|
| 3595 | r_xram_rsp_to_ixr_cmd_req = true; |
---|
| 3596 | r_xram_rsp_to_ixr_cmd_nline = r_xram_rsp_victim_nline.read(); |
---|
| 3597 | r_xram_rsp_to_ixr_cmd_trdid = r_xram_rsp_trt_index.read(); |
---|
| 3598 | for(size_t i=0; i<m_words ; i++) r_xram_rsp_to_ixr_cmd_data[i] = r_xram_rsp_victim_data[i]; |
---|
| 3599 | m_cpt_write_dirty++; |
---|
| 3600 | |
---|
| 3601 | bool multi_req = !r_xram_rsp_victim_is_cnt.read() && r_xram_rsp_victim_inval.read(); |
---|
| 3602 | bool not_last_multi_req = multi_req && (r_xram_rsp_victim_count.read() != 1); |
---|
| 3603 | if(not_last_multi_req) r_xram_rsp_fsm = XRAM_RSP_HEAP_REQ; |
---|
| 3604 | else r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3605 | |
---|
| 3606 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3607 | if(m_debug_xram_rsp_fsm) |
---|
| 3608 | { |
---|
| 3609 | std::cout << " <MEMC " << name() << ".XRAM_RSP_WRITE_DIRTY> Send the put request to IXR_CMD FSM:" |
---|
| 3610 | << " victim line = " << r_xram_rsp_victim_nline.read() << std::endl; |
---|
| 3611 | } |
---|
| 3612 | #endif |
---|
| 3613 | } |
---|
| 3614 | break; |
---|
| 3615 | } |
---|
| 3616 | |
---|
| 3617 | ///////////////////////// |
---|
| 3618 | case XRAM_RSP_HEAP_REQ: |
---|
| 3619 | // Get the lock to the HEAP directory |
---|
| 3620 | { |
---|
| 3621 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_XRAM_RSP) |
---|
| 3622 | { |
---|
| 3623 | r_xram_rsp_fsm = XRAM_RSP_HEAP_ERASE; |
---|
| 3624 | } |
---|
| 3625 | |
---|
| 3626 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3627 | if(m_debug_xram_rsp_fsm) |
---|
| 3628 | { |
---|
| 3629 | std::cout |
---|
| 3630 | << " <MEMC " << name() << ".XRAM_RSP_HEAP_REQ> Requesting HEAP lock " |
---|
| 3631 | << std::endl; |
---|
| 3632 | } |
---|
| 3633 | #endif |
---|
| 3634 | break; |
---|
| 3635 | } |
---|
| 3636 | |
---|
| 3637 | ///////////////////////// |
---|
| 3638 | case XRAM_RSP_HEAP_ERASE: // erase the list of copies and sent invalidations |
---|
| 3639 | { |
---|
| 3640 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_XRAM_RSP) |
---|
| 3641 | { |
---|
| 3642 | HeapEntry entry = m_heap.read(r_xram_rsp_next_ptr.read()); |
---|
| 3643 | |
---|
| 3644 | xram_rsp_to_cc_send_fifo_srcid = entry.owner.srcid; |
---|
| 3645 | #if L1_MULTI_CACHE |
---|
| 3646 | xram_rsp_to_cc_send_fifo_cache_id = entry.owner.cache_id; |
---|
| 3647 | #endif |
---|
| 3648 | xram_rsp_to_cc_send_fifo_inst = entry.owner.inst; |
---|
| 3649 | xram_rsp_to_cc_send_fifo_put = true; |
---|
| 3650 | if(m_xram_rsp_to_cc_send_inst_fifo.wok()) |
---|
| 3651 | { |
---|
| 3652 | r_xram_rsp_next_ptr = entry.next; |
---|
| 3653 | if(entry.next == r_xram_rsp_next_ptr.read()) // last copy |
---|
| 3654 | { |
---|
| 3655 | r_xram_rsp_to_cc_send_multi_req = true; |
---|
| 3656 | r_xram_rsp_fsm = XRAM_RSP_HEAP_LAST; |
---|
| 3657 | } |
---|
| 3658 | else |
---|
| 3659 | { |
---|
| 3660 | r_xram_rsp_fsm = XRAM_RSP_HEAP_ERASE; |
---|
| 3661 | } |
---|
| 3662 | } |
---|
| 3663 | else |
---|
| 3664 | { |
---|
| 3665 | r_xram_rsp_fsm = XRAM_RSP_HEAP_ERASE; |
---|
| 3666 | } |
---|
| 3667 | |
---|
| 3668 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3669 | if(m_debug_xram_rsp_fsm) |
---|
| 3670 | { |
---|
| 3671 | std::cout << " <MEMC " << name() << ".XRAM_RSP_HEAP_ERASE> Erase the list of copies:" |
---|
| 3672 | << " srcid = " << std::dec << entry.owner.srcid |
---|
| 3673 | << " / inst = " << std::dec << entry.owner.inst << std::endl; |
---|
| 3674 | } |
---|
| 3675 | #endif |
---|
| 3676 | } |
---|
| 3677 | break; |
---|
| 3678 | } |
---|
| 3679 | ///////////////////////// |
---|
| 3680 | case XRAM_RSP_HEAP_LAST: // last member of the list |
---|
| 3681 | { |
---|
| 3682 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_XRAM_RSP) |
---|
| 3683 | { |
---|
| 3684 | std::cout << "VCI_MEM_CACHE ERROR " << name() << " XRAM_RSP_HEAP_LAST state" << std::endl; |
---|
| 3685 | std::cout << "bad HEAP allocation" << std::endl; |
---|
| 3686 | exit(0); |
---|
| 3687 | } |
---|
| 3688 | size_t free_pointer = m_heap.next_free_ptr(); |
---|
| 3689 | |
---|
| 3690 | HeapEntry last_entry; |
---|
| 3691 | last_entry.owner.srcid = 0; |
---|
| 3692 | #if L1_MULTI_CACHE |
---|
| 3693 | last_entry.owner.cache_id = 0; |
---|
| 3694 | #endif |
---|
| 3695 | last_entry.owner.inst = false; |
---|
| 3696 | if(m_heap.is_full()) |
---|
| 3697 | { |
---|
| 3698 | last_entry.next = r_xram_rsp_next_ptr.read(); |
---|
| 3699 | m_heap.unset_full(); |
---|
| 3700 | } |
---|
| 3701 | else |
---|
| 3702 | { |
---|
| 3703 | last_entry.next = free_pointer; |
---|
| 3704 | } |
---|
| 3705 | |
---|
| 3706 | m_heap.write_free_ptr(r_xram_rsp_victim_ptr.read()); |
---|
| 3707 | m_heap.write(r_xram_rsp_next_ptr.read(),last_entry); |
---|
| 3708 | |
---|
| 3709 | r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3710 | |
---|
| 3711 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3712 | if(m_debug_xram_rsp_fsm) |
---|
| 3713 | { |
---|
| 3714 | std::cout << " <MEMC " << name() << ".XRAM_RSP_HEAP_LAST> Heap housekeeping" << std::endl; |
---|
| 3715 | } |
---|
| 3716 | #endif |
---|
| 3717 | break; |
---|
| 3718 | } |
---|
| 3719 | // /////////////////////// |
---|
| 3720 | case XRAM_RSP_ERROR_ERASE: // erase TRT entry in case of error |
---|
| 3721 | { |
---|
[346] | 3722 | m_trt.erase(r_xram_rsp_trt_index.read()); |
---|
[331] | 3723 | |
---|
| 3724 | // Next state |
---|
| 3725 | if(r_xram_rsp_trt_buf.proc_read) r_xram_rsp_fsm = XRAM_RSP_ERROR_RSP; |
---|
| 3726 | else r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3727 | |
---|
| 3728 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3729 | if(m_debug_xram_rsp_fsm) |
---|
| 3730 | { |
---|
| 3731 | std::cout << " <MEMC " << name() << ".XRAM_RSP_ERROR_ERASE> Error reported by XRAM / erase the TRT entry" << std::endl; |
---|
| 3732 | } |
---|
| 3733 | #endif |
---|
| 3734 | break; |
---|
| 3735 | } |
---|
| 3736 | //////////////////////// |
---|
| 3737 | case XRAM_RSP_ERROR_RSP: // Request an error response to TGT_RSP FSM |
---|
| 3738 | { |
---|
| 3739 | if(!r_xram_rsp_to_tgt_rsp_req.read()) |
---|
| 3740 | { |
---|
| 3741 | r_xram_rsp_to_tgt_rsp_srcid = r_xram_rsp_trt_buf.srcid; |
---|
| 3742 | r_xram_rsp_to_tgt_rsp_trdid = r_xram_rsp_trt_buf.trdid; |
---|
| 3743 | r_xram_rsp_to_tgt_rsp_pktid = r_xram_rsp_trt_buf.pktid; |
---|
| 3744 | for(size_t i=0; i < m_words; i++) r_xram_rsp_to_tgt_rsp_data[i] = r_xram_rsp_trt_buf.wdata[i]; |
---|
| 3745 | r_xram_rsp_to_tgt_rsp_word = r_xram_rsp_trt_buf.word_index; |
---|
| 3746 | r_xram_rsp_to_tgt_rsp_length = r_xram_rsp_trt_buf.read_length; |
---|
| 3747 | r_xram_rsp_to_tgt_rsp_rerror = true; |
---|
| 3748 | r_xram_rsp_to_tgt_rsp_req = true; |
---|
| 3749 | |
---|
| 3750 | r_xram_rsp_fsm = XRAM_RSP_IDLE; |
---|
| 3751 | |
---|
| 3752 | #if DEBUG_MEMC_XRAM_RSP |
---|
| 3753 | if(m_debug_xram_rsp_fsm) |
---|
| 3754 | { |
---|
| 3755 | std::cout << " <MEMC " << name() << ".XRAM_RSP_ERROR_RSP> Request a response error to TGT_RSP FSM:" |
---|
| 3756 | << " srcid = " << std::dec << r_xram_rsp_trt_buf.srcid << std::endl; |
---|
| 3757 | } |
---|
| 3758 | #endif |
---|
| 3759 | } |
---|
| 3760 | break; |
---|
| 3761 | } |
---|
| 3762 | } // end swich r_xram_rsp_fsm |
---|
| 3763 | |
---|
| 3764 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 3765 | // CLEANUP FSM |
---|
| 3766 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 3767 | // The CLEANUP FSM handles the cleanup request from L1 caches. |
---|
| 3768 | // It accesses the cache directory and the heap to update the list of copies. |
---|
| 3769 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 3770 | |
---|
| 3771 | switch(r_cleanup_fsm.read()) |
---|
| 3772 | { |
---|
| 3773 | case CLEANUP_IDLE: |
---|
| 3774 | { |
---|
| 3775 | // Get first DSPIN flit of the CLEANUP command |
---|
| 3776 | if(not m_cc_receive_to_cleanup_fifo.rok()) break; |
---|
| 3777 | |
---|
| 3778 | uint64_t flit = m_cc_receive_to_cleanup_fifo.read(); |
---|
| 3779 | |
---|
| 3780 | uint32_t srcid = |
---|
| 3781 | DspinDhccpParam::dspin_get( |
---|
| 3782 | flit, |
---|
| 3783 | DspinDhccpParam::CLEANUP_SRCID); |
---|
| 3784 | |
---|
| 3785 | uint8_t type = |
---|
| 3786 | DspinDhccpParam::dspin_get( |
---|
| 3787 | flit, |
---|
| 3788 | DspinDhccpParam::FROM_L1_TYPE); |
---|
| 3789 | |
---|
| 3790 | r_cleanup_way_index = |
---|
| 3791 | DspinDhccpParam::dspin_get( |
---|
| 3792 | flit, |
---|
| 3793 | DspinDhccpParam::CLEANUP_WAY_INDEX); |
---|
| 3794 | |
---|
| 3795 | r_cleanup_nline = |
---|
| 3796 | DspinDhccpParam::dspin_get( |
---|
| 3797 | flit, |
---|
| 3798 | DspinDhccpParam::CLEANUP_NLINE_MSB) |
---|
| 3799 | << 32; |
---|
| 3800 | |
---|
| 3801 | r_cleanup_inst = (type == DspinDhccpParam::TYPE_CLEANUP_INST); |
---|
| 3802 | r_cleanup_srcid = srcid; |
---|
| 3803 | |
---|
| 3804 | if(srcid >= m_initiators) |
---|
| 3805 | { |
---|
| 3806 | std::cout |
---|
| 3807 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 3808 | << " CLEANUP_IDLE state" << std::endl |
---|
| 3809 | << "illegal srcid for cleanup request" << std::endl; |
---|
| 3810 | |
---|
| 3811 | exit(0); |
---|
| 3812 | } |
---|
| 3813 | |
---|
| 3814 | m_cpt_cleanup++; |
---|
| 3815 | cc_receive_to_cleanup_fifo_get = true; |
---|
| 3816 | r_cleanup_fsm = CLEANUP_GET_NLINE; |
---|
| 3817 | |
---|
| 3818 | #if DEBUG_MEMC_CLEANUP |
---|
| 3819 | if(m_debug_cleanup_fsm) |
---|
| 3820 | { |
---|
| 3821 | std::cout |
---|
| 3822 | << " <MEMC " << name() |
---|
| 3823 | << ".CLEANUP_IDLE> Cleanup request:" << std::hex |
---|
| 3824 | << " / owner_id = " << srcid |
---|
| 3825 | << " / owner_ins = " << (type == DspinDhccpParam::TYPE_CLEANUP_INST) |
---|
| 3826 | << std::endl; |
---|
| 3827 | } |
---|
| 3828 | #endif |
---|
| 3829 | break; |
---|
| 3830 | } |
---|
| 3831 | |
---|
| 3832 | case CLEANUP_GET_NLINE: |
---|
| 3833 | { |
---|
| 3834 | // Get second flit of cleanup command |
---|
| 3835 | if(not m_cc_receive_to_cleanup_fifo.rok()) break; |
---|
| 3836 | |
---|
| 3837 | uint64_t flit = m_cc_receive_to_cleanup_fifo.read(); |
---|
| 3838 | |
---|
| 3839 | addr_t nline = |
---|
| 3840 | r_cleanup_nline.read() | |
---|
| 3841 | DspinDhccpParam::dspin_get(flit, DspinDhccpParam::CLEANUP_NLINE_LSB); |
---|
| 3842 | |
---|
| 3843 | bool eop = |
---|
| 3844 | DspinDhccpParam::dspin_get(flit, DspinDhccpParam::FROM_L1_EOP) == 0x1; |
---|
| 3845 | |
---|
| 3846 | assert( |
---|
| 3847 | eop && |
---|
| 3848 | "VCI_MEM_CACHE ERROR: " |
---|
| 3849 | "CLEANUP command must have exactly two flits"); |
---|
| 3850 | |
---|
| 3851 | cc_receive_to_cleanup_fifo_get = true; |
---|
| 3852 | r_cleanup_nline = nline; |
---|
| 3853 | r_cleanup_fsm = CLEANUP_DIR_REQ; |
---|
| 3854 | |
---|
| 3855 | #if DEBUG_MEMC_CLEANUP |
---|
| 3856 | if(m_debug_cleanup_fsm) |
---|
| 3857 | { |
---|
| 3858 | std::cout |
---|
| 3859 | << " <MEMC " << name() |
---|
| 3860 | << ".CLEANUP_GET_NLINE> Cleanup request:" |
---|
| 3861 | << std::hex |
---|
| 3862 | << " / address = " << nline * m_words * 4 |
---|
| 3863 | << std::endl; |
---|
| 3864 | } |
---|
| 3865 | #endif |
---|
| 3866 | break; |
---|
| 3867 | } |
---|
| 3868 | |
---|
| 3869 | case CLEANUP_DIR_REQ: |
---|
| 3870 | { |
---|
| 3871 | // Get the lock to the directory |
---|
| 3872 | if(r_alloc_dir_fsm.read() != ALLOC_DIR_CLEANUP) break; |
---|
| 3873 | |
---|
| 3874 | r_cleanup_fsm = CLEANUP_DIR_LOCK; |
---|
| 3875 | |
---|
| 3876 | #if DEBUG_MEMC_CLEANUP |
---|
| 3877 | if(m_debug_cleanup_fsm) |
---|
| 3878 | { |
---|
| 3879 | std::cout |
---|
| 3880 | << " <MEMC " << name() << ".CLEANUP_DIR_REQ> Requesting DIR lock " |
---|
| 3881 | << std::endl; |
---|
| 3882 | } |
---|
| 3883 | #endif |
---|
| 3884 | break; |
---|
| 3885 | } |
---|
| 3886 | |
---|
| 3887 | case CLEANUP_DIR_LOCK: |
---|
| 3888 | { |
---|
| 3889 | // test directory status |
---|
| 3890 | if(r_alloc_dir_fsm.read() != ALLOC_DIR_CLEANUP) |
---|
| 3891 | { |
---|
| 3892 | std::cout |
---|
| 3893 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 3894 | << " CLEANUP_DIR_LOCK state" |
---|
| 3895 | << " bad DIR allocation" << std::endl; |
---|
| 3896 | |
---|
| 3897 | exit(0); |
---|
| 3898 | } |
---|
| 3899 | |
---|
| 3900 | // Read the directory |
---|
| 3901 | size_t way = 0; |
---|
| 3902 | addr_t cleanup_address = r_cleanup_nline.read() * m_words * 4; |
---|
| 3903 | |
---|
| 3904 | DirectoryEntry entry = m_cache_directory.read(cleanup_address , way); |
---|
| 3905 | r_cleanup_is_cnt = entry.is_cnt; |
---|
| 3906 | r_cleanup_dirty = entry.dirty; |
---|
| 3907 | r_cleanup_tag = entry.tag; |
---|
| 3908 | r_cleanup_lock = entry.lock; |
---|
| 3909 | r_cleanup_way = way; |
---|
| 3910 | r_cleanup_count = entry.count; |
---|
| 3911 | r_cleanup_ptr = entry.ptr; |
---|
| 3912 | r_cleanup_copy = entry.owner.srcid; |
---|
| 3913 | r_cleanup_copy_inst = entry.owner.inst; |
---|
| 3914 | #if L1_MULTI_CACHE |
---|
| 3915 | r_cleanup_copy_cache = entry.owner.cache_id; |
---|
| 3916 | #endif |
---|
| 3917 | |
---|
| 3918 | // hit : |
---|
| 3919 | // the copy must be cleared |
---|
| 3920 | if(entry.valid) |
---|
| 3921 | { |
---|
| 3922 | assert( |
---|
| 3923 | (entry.count > 0) && |
---|
| 3924 | "VCI MEM CACHE ERROR: " |
---|
| 3925 | "In CLEANUP_DIR_LOCK, CLEANUP command on a valid entry " |
---|
| 3926 | "with no copies"); |
---|
| 3927 | |
---|
| 3928 | // no access to the heap |
---|
| 3929 | if((entry.count == 1) || (entry.is_cnt)) |
---|
| 3930 | { |
---|
| 3931 | r_cleanup_fsm = CLEANUP_DIR_WRITE; |
---|
| 3932 | } |
---|
| 3933 | // access to the heap |
---|
| 3934 | else |
---|
| 3935 | { |
---|
| 3936 | r_cleanup_fsm = CLEANUP_HEAP_REQ; |
---|
| 3937 | } |
---|
| 3938 | } |
---|
| 3939 | // miss : |
---|
| 3940 | // we must check the update table for a pending |
---|
| 3941 | // invalidation transaction |
---|
| 3942 | else |
---|
| 3943 | { |
---|
| 3944 | r_cleanup_fsm = CLEANUP_UPT_LOCK; |
---|
| 3945 | } |
---|
| 3946 | |
---|
| 3947 | #if DEBUG_MEMC_CLEANUP |
---|
| 3948 | if(m_debug_cleanup_fsm) |
---|
| 3949 | { |
---|
| 3950 | std::cout |
---|
| 3951 | << " <MEMC " << name() |
---|
| 3952 | << ".CLEANUP_DIR_LOCK> Test directory status: " |
---|
| 3953 | << std::hex |
---|
| 3954 | << " line = " << cleanup_address |
---|
| 3955 | << " / hit = " << entry.valid |
---|
| 3956 | << " / dir_id = " << entry.owner.srcid |
---|
| 3957 | << " / dir_ins = " << entry.owner.inst |
---|
| 3958 | << " / search_id = " << r_cleanup_srcid.read() |
---|
| 3959 | << " / search_ins = " << r_cleanup_inst.read() |
---|
| 3960 | << " / count = " << entry.count |
---|
| 3961 | << " / is_cnt = " << entry.is_cnt |
---|
| 3962 | << std::endl; |
---|
| 3963 | } |
---|
| 3964 | #endif |
---|
| 3965 | break; |
---|
| 3966 | } |
---|
| 3967 | |
---|
| 3968 | case CLEANUP_DIR_WRITE: |
---|
| 3969 | { |
---|
| 3970 | // Update the directory entry without heap access |
---|
| 3971 | if(r_alloc_dir_fsm.read() != ALLOC_DIR_CLEANUP) |
---|
| 3972 | { |
---|
| 3973 | std::cout |
---|
| 3974 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 3975 | << " CLEANUP_DIR_WRITE state" |
---|
| 3976 | << " bad DIR allocation" << std::endl; |
---|
| 3977 | |
---|
| 3978 | exit(0); |
---|
| 3979 | } |
---|
| 3980 | |
---|
| 3981 | size_t way = r_cleanup_way.read(); |
---|
| 3982 | size_t set = m_y[(vci_addr_t)(r_cleanup_nline.read()*m_words*4)]; |
---|
| 3983 | bool match_srcid = (r_cleanup_copy.read() == r_cleanup_srcid.read()); |
---|
| 3984 | |
---|
| 3985 | #if L1_MULTI_CACHE |
---|
| 3986 | match_srcid &= (r_cleanup_copy_cache.read() == r_cleanup_pktid.read()); |
---|
| 3987 | #endif |
---|
| 3988 | |
---|
| 3989 | bool match_inst = (r_cleanup_copy_inst.read() == r_cleanup_inst.read()); |
---|
| 3990 | bool match = match_srcid && match_inst; |
---|
| 3991 | |
---|
| 3992 | if(not r_cleanup_is_cnt.read() and not match) |
---|
| 3993 | { |
---|
| 3994 | std::cout |
---|
| 3995 | << "VCI_MEM_CACHE ERROR : Cleanup request on a valid" |
---|
| 3996 | << "entry using linked list mode with no corresponding" |
---|
| 3997 | << "directory or heap entry" |
---|
| 3998 | << std::endl; |
---|
| 3999 | |
---|
| 4000 | exit(1); |
---|
| 4001 | } |
---|
| 4002 | |
---|
| 4003 | // update the cache directory (for the copies) |
---|
| 4004 | DirectoryEntry entry; |
---|
| 4005 | entry.valid = true; |
---|
| 4006 | entry.is_cnt = r_cleanup_is_cnt.read(); |
---|
| 4007 | entry.dirty = r_cleanup_dirty.read(); |
---|
| 4008 | entry.tag = r_cleanup_tag.read(); |
---|
| 4009 | entry.lock = r_cleanup_lock.read(); |
---|
| 4010 | entry.ptr = r_cleanup_ptr.read(); |
---|
| 4011 | entry.count = r_cleanup_count.read() - 1; |
---|
| 4012 | entry.owner.srcid = 0; |
---|
| 4013 | entry.owner.inst = 0; |
---|
| 4014 | |
---|
| 4015 | #if L1_MULTI_CACHE |
---|
| 4016 | entry.owner.cache_id = 0; |
---|
| 4017 | #endif |
---|
| 4018 | |
---|
| 4019 | m_cache_directory.write(set, way, entry); |
---|
| 4020 | |
---|
| 4021 | r_cleanup_fsm = CLEANUP_SEND_ACK; |
---|
| 4022 | |
---|
| 4023 | #if DEBUG_MEMC_CLEANUP |
---|
| 4024 | if(m_debug_cleanup_fsm) |
---|
| 4025 | { |
---|
| 4026 | std::cout |
---|
| 4027 | << " <MEMC " << name() |
---|
| 4028 | << ".CLEANUP_DIR_WRITE> Update directory:" |
---|
| 4029 | << std::hex |
---|
| 4030 | << " address = " << r_cleanup_nline.read() * m_words * 4 |
---|
| 4031 | << " / dir_id = " << entry.owner.srcid |
---|
| 4032 | << " / dir_ins = " << entry.owner.inst |
---|
| 4033 | << " / count = " << entry.count |
---|
| 4034 | << " / is_cnt = " << entry.is_cnt |
---|
| 4035 | << std::endl; |
---|
| 4036 | } |
---|
| 4037 | #endif |
---|
| 4038 | |
---|
| 4039 | break; |
---|
| 4040 | } |
---|
| 4041 | |
---|
| 4042 | case CLEANUP_HEAP_REQ: |
---|
| 4043 | { |
---|
| 4044 | // get the lock to the HEAP directory |
---|
| 4045 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_CLEANUP) break; |
---|
| 4046 | |
---|
| 4047 | r_cleanup_fsm = CLEANUP_HEAP_LOCK; |
---|
| 4048 | |
---|
| 4049 | #if DEBUG_MEMC_CLEANUP |
---|
| 4050 | if(m_debug_cleanup_fsm) |
---|
| 4051 | { |
---|
| 4052 | std::cout |
---|
| 4053 | << " <MEMC " << name() |
---|
| 4054 | << ".CLEANUP_HEAP_REQ> HEAP lock acquired " |
---|
| 4055 | << std::endl; |
---|
| 4056 | } |
---|
| 4057 | #endif |
---|
| 4058 | break; |
---|
| 4059 | } |
---|
| 4060 | |
---|
| 4061 | case CLEANUP_HEAP_LOCK: |
---|
| 4062 | { |
---|
| 4063 | // two cases are handled in this state : |
---|
| 4064 | // 1. the matching copy is directly in the directory |
---|
| 4065 | // 2. the matching copy is the first copy in the heap |
---|
| 4066 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_CLEANUP) |
---|
| 4067 | { |
---|
| 4068 | std::cout |
---|
| 4069 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4070 | << " CLEANUP_HEAP_LOCK state" |
---|
| 4071 | << " bad HEAP allocation" << std::endl; |
---|
| 4072 | |
---|
| 4073 | exit(0); |
---|
| 4074 | } |
---|
| 4075 | |
---|
| 4076 | size_t way = r_cleanup_way.read(); |
---|
| 4077 | size_t set = m_y[(vci_addr_t)(r_cleanup_nline.read() *m_words*4)]; |
---|
| 4078 | |
---|
| 4079 | HeapEntry heap_entry = m_heap.read(r_cleanup_ptr.read()); |
---|
| 4080 | bool last = (heap_entry.next == r_cleanup_ptr.read()); |
---|
| 4081 | |
---|
| 4082 | // match_dir computation |
---|
| 4083 | bool match_dir_srcid = (r_cleanup_copy.read() == r_cleanup_srcid.read()); |
---|
| 4084 | bool match_dir_inst = (r_cleanup_copy_inst.read() == r_cleanup_inst.read()); |
---|
| 4085 | bool match_dir = match_dir_srcid and match_dir_inst; |
---|
| 4086 | |
---|
| 4087 | // match_heap computation |
---|
| 4088 | bool match_heap_srcid = (heap_entry.owner.srcid == r_cleanup_srcid.read()); |
---|
| 4089 | bool match_heap_inst = (heap_entry.owner.inst == r_cleanup_inst.read()); |
---|
| 4090 | bool match_heap = match_heap_srcid and match_heap_inst; |
---|
| 4091 | |
---|
| 4092 | r_cleanup_prev_ptr = r_cleanup_ptr.read(); |
---|
| 4093 | r_cleanup_prev_srcid = heap_entry.owner.srcid; |
---|
| 4094 | r_cleanup_prev_inst = heap_entry.owner.inst; |
---|
| 4095 | |
---|
| 4096 | #if L1_MULTI_CACHE |
---|
| 4097 | match_dir = match_dir and(r_cleanup_copy_cache.read() == r_cleanup_pktid.read()); |
---|
| 4098 | match_heap = match_heap and(heap_entry.owner.cache_id == r_cleanup_pktid.read()); |
---|
| 4099 | r_cleanup_prev_cache_id = heap_entry.owner.cache_id; |
---|
| 4100 | #endif |
---|
| 4101 | |
---|
| 4102 | if(not match_dir and not match_heap and last) |
---|
| 4103 | { |
---|
| 4104 | std::cout |
---|
| 4105 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4106 | << " CLEANUP_HEAP_LOCK state" |
---|
| 4107 | << " hit but copy not found" |
---|
| 4108 | << std::endl; |
---|
[338] | 4109 | /**/ |
---|
| 4110 | std::cout |
---|
| 4111 | << "r_cleanup_srcid = " << r_cleanup_srcid.read() |
---|
| 4112 | << " / r_cleanup_inst = " << r_cleanup_inst.read() << std::endl |
---|
| 4113 | << "r_cleanup_copy = " << r_cleanup_copy.read() |
---|
| 4114 | << " / r_cleanup_copy_inst = " << r_cleanup_copy_inst.read() << std::endl |
---|
| 4115 | << "heap_entry.owner.srcid = " << heap_entry.owner.srcid |
---|
| 4116 | << " / heap_entry.owner.inst = " << heap_entry.owner.inst << std::endl; |
---|
| 4117 | /**/ |
---|
[331] | 4118 | exit(0); |
---|
| 4119 | } |
---|
| 4120 | |
---|
| 4121 | if(match_dir and match_heap) |
---|
| 4122 | { |
---|
| 4123 | std::cout |
---|
| 4124 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4125 | << " CLEANUP_HEAP_LOCK state" |
---|
| 4126 | << " two copies matching the cleanup owner id" |
---|
| 4127 | << std::endl; |
---|
[338] | 4128 | /**/ |
---|
| 4129 | std::cout |
---|
| 4130 | << "r_cleanup_srcid = " << r_cleanup_srcid.read() |
---|
| 4131 | << " / r_cleanup_inst = " << r_cleanup_inst.read() << std::endl |
---|
| 4132 | << "r_cleanup_copy = " << r_cleanup_copy.read() |
---|
| 4133 | << " / r_cleanup_copy_inst = " << r_cleanup_copy_inst.read() << std::endl |
---|
| 4134 | << "heap_entry.owner.srcid = " << heap_entry.owner.srcid |
---|
| 4135 | << " / heap_entry.owner.inst = " << heap_entry.owner.inst << std::endl; |
---|
| 4136 | /**/ |
---|
[331] | 4137 | |
---|
| 4138 | exit(0); |
---|
| 4139 | } |
---|
| 4140 | |
---|
| 4141 | DirectoryEntry dir_entry; |
---|
| 4142 | dir_entry.valid = true; |
---|
| 4143 | dir_entry.is_cnt = r_cleanup_is_cnt.read(); |
---|
| 4144 | dir_entry.dirty = r_cleanup_dirty.read(); |
---|
| 4145 | dir_entry.tag = r_cleanup_tag.read(); |
---|
| 4146 | dir_entry.lock = r_cleanup_lock.read(); |
---|
| 4147 | dir_entry.count = r_cleanup_count.read()-1; |
---|
| 4148 | |
---|
| 4149 | // the matching copy is registered in the directory and |
---|
| 4150 | // it must be replaced by the first copy registered in |
---|
| 4151 | // the heap. The corresponding entry must be freed |
---|
| 4152 | if(match_dir) |
---|
| 4153 | { |
---|
| 4154 | dir_entry.ptr = heap_entry.next; |
---|
| 4155 | dir_entry.owner.srcid = heap_entry.owner.srcid; |
---|
| 4156 | dir_entry.owner.inst = heap_entry.owner.inst; |
---|
| 4157 | |
---|
| 4158 | #if L1_MULTI_CACHE |
---|
| 4159 | dir_entry.owner.cache_id = heap_entry.owner.cache_id; |
---|
| 4160 | #endif |
---|
| 4161 | |
---|
| 4162 | r_cleanup_next_ptr = r_cleanup_ptr.read(); |
---|
| 4163 | r_cleanup_fsm = CLEANUP_HEAP_FREE; |
---|
| 4164 | } |
---|
| 4165 | |
---|
| 4166 | // the matching copy is the first copy in the heap |
---|
| 4167 | // It must be freed and the copy registered in directory |
---|
| 4168 | // must point to the next copy in heap |
---|
[333] | 4169 | else if(match_heap) |
---|
[331] | 4170 | { |
---|
| 4171 | dir_entry.ptr = heap_entry.next; |
---|
| 4172 | dir_entry.owner.srcid = r_cleanup_copy.read(); |
---|
| 4173 | dir_entry.owner.inst = r_cleanup_copy_inst.read(); |
---|
| 4174 | |
---|
| 4175 | #if L1_MULTI_CACHE |
---|
| 4176 | dir_entry.owner.cache_id = r_cleanup_copy_cache.read(); |
---|
| 4177 | #endif |
---|
| 4178 | |
---|
| 4179 | r_cleanup_next_ptr = r_cleanup_ptr.read(); |
---|
| 4180 | r_cleanup_fsm = CLEANUP_HEAP_FREE; |
---|
| 4181 | } |
---|
[333] | 4182 | |
---|
[331] | 4183 | // The matching copy is in the heap, but is not the first copy |
---|
| 4184 | // The directory entry must be modified to decrement count |
---|
| 4185 | else |
---|
| 4186 | { |
---|
| 4187 | dir_entry.ptr = r_cleanup_ptr.read(); |
---|
| 4188 | dir_entry.owner.srcid = r_cleanup_copy.read(); |
---|
| 4189 | dir_entry.owner.inst = r_cleanup_copy_inst.read(); |
---|
| 4190 | |
---|
| 4191 | #if L1_MULTI_CACHE |
---|
| 4192 | dir_entry.owner.cache_id = r_cleanup_copy_cache.read(); |
---|
| 4193 | #endif |
---|
| 4194 | |
---|
| 4195 | r_cleanup_next_ptr = heap_entry.next; |
---|
| 4196 | r_cleanup_fsm = CLEANUP_HEAP_SEARCH; |
---|
| 4197 | } |
---|
| 4198 | |
---|
| 4199 | m_cache_directory.write(set,way,dir_entry); |
---|
| 4200 | |
---|
| 4201 | #if DEBUG_MEMC_CLEANUP |
---|
| 4202 | if(m_debug_cleanup_fsm) |
---|
| 4203 | { |
---|
| 4204 | std::cout |
---|
| 4205 | << " <MEMC " << name() |
---|
| 4206 | << ".CLEANUP_HEAP_LOCK> Checks matching:" |
---|
| 4207 | << " address = " << r_cleanup_nline.read() * m_words * 4 |
---|
| 4208 | << " / dir_id = " << r_cleanup_copy.read() |
---|
| 4209 | << " / dir_ins = " << r_cleanup_copy_inst.read() |
---|
| 4210 | << " / heap_id = " << heap_entry.owner.srcid |
---|
| 4211 | << " / heap_ins = " << heap_entry.owner.inst |
---|
| 4212 | << " / search_id = " << r_cleanup_srcid.read() |
---|
| 4213 | << " / search_ins = " << r_cleanup_inst.read() |
---|
| 4214 | << std::endl; |
---|
| 4215 | } |
---|
| 4216 | #endif |
---|
| 4217 | break; |
---|
| 4218 | } |
---|
| 4219 | |
---|
| 4220 | case CLEANUP_HEAP_SEARCH: |
---|
| 4221 | { |
---|
| 4222 | // This state is handling the case where the copy |
---|
| 4223 | // is in the heap, but is not the first in the linked list |
---|
| 4224 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_CLEANUP) |
---|
| 4225 | { |
---|
| 4226 | std::cout |
---|
| 4227 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4228 | << " CLEANUP_HEAP_SEARCH state" |
---|
| 4229 | << " bad HEAP allocation" << std::endl; |
---|
| 4230 | |
---|
| 4231 | exit(0); |
---|
| 4232 | } |
---|
| 4233 | |
---|
| 4234 | HeapEntry heap_entry = m_heap.read(r_cleanup_next_ptr.read()); |
---|
| 4235 | |
---|
| 4236 | bool last = (heap_entry.next == r_cleanup_next_ptr.read()); |
---|
| 4237 | bool match_heap_srcid = (heap_entry.owner.srcid == r_cleanup_srcid.read()); |
---|
| 4238 | bool match_heap_inst = (heap_entry.owner.inst == r_cleanup_inst.read()); |
---|
| 4239 | bool match_heap = match_heap_srcid && match_heap_inst; |
---|
| 4240 | |
---|
| 4241 | #if L1_MULTI_CACHE |
---|
| 4242 | match_heap = match_heap and(heap_entry.owner.cache_id == r_cleanup_pktid.read()); |
---|
| 4243 | #endif |
---|
| 4244 | |
---|
| 4245 | if(not match_heap and last) |
---|
| 4246 | { |
---|
| 4247 | std::cout |
---|
| 4248 | << "VCI_MEM_CACHE_ERROR " << name() |
---|
| 4249 | << " CLEANUP_HEAP_SEARCH state" |
---|
| 4250 | << " cleanup on valid line but copy not found" |
---|
| 4251 | << std::endl; |
---|
| 4252 | |
---|
| 4253 | exit(0); |
---|
| 4254 | } |
---|
| 4255 | |
---|
| 4256 | // the matching copy must be removed |
---|
| 4257 | if(match_heap) |
---|
| 4258 | { |
---|
| 4259 | // re-use ressources |
---|
| 4260 | r_cleanup_ptr = heap_entry.next; |
---|
| 4261 | r_cleanup_fsm = CLEANUP_HEAP_CLEAN; |
---|
| 4262 | } |
---|
| 4263 | // test the next in the linked list |
---|
| 4264 | else |
---|
| 4265 | { |
---|
| 4266 | r_cleanup_prev_ptr = r_cleanup_next_ptr.read(); |
---|
| 4267 | r_cleanup_prev_srcid = heap_entry.owner.srcid; |
---|
| 4268 | r_cleanup_prev_inst = heap_entry.owner.inst; |
---|
| 4269 | r_cleanup_next_ptr = heap_entry.next; |
---|
| 4270 | |
---|
| 4271 | r_cleanup_fsm = CLEANUP_HEAP_SEARCH; |
---|
| 4272 | |
---|
| 4273 | #if L1_MULTI_CACHE |
---|
| 4274 | r_cleanup_prev_cache_id = heap_entry.owner.cache_id; |
---|
| 4275 | #endif |
---|
| 4276 | } |
---|
| 4277 | |
---|
| 4278 | #if DEBUG_MEMC_CLEANUP |
---|
| 4279 | if(m_debug_cleanup_fsm) |
---|
| 4280 | { |
---|
| 4281 | if(not match_heap) |
---|
| 4282 | { |
---|
| 4283 | std::cout |
---|
| 4284 | << " <MEMC " << name() |
---|
| 4285 | << ".CLEANUP_HEAP_SEARCH> Matching copy not found, search next:" |
---|
| 4286 | << std::endl; |
---|
| 4287 | } |
---|
| 4288 | else |
---|
| 4289 | { |
---|
| 4290 | std::cout |
---|
| 4291 | << " <MEMC " << name() |
---|
| 4292 | << ".CLEANUP_HEAP_SEARCH> Matching copy found:" |
---|
| 4293 | << std::endl; |
---|
| 4294 | } |
---|
| 4295 | |
---|
| 4296 | std::cout |
---|
| 4297 | << " address = " << r_cleanup_nline.read() * m_words * 4 |
---|
| 4298 | << " / heap_id = " << heap_entry.owner.srcid |
---|
| 4299 | << " / heap_ins = " << heap_entry.owner.inst |
---|
| 4300 | << " / search_id = " << r_cleanup_srcid.read() |
---|
| 4301 | << " / search_ins = " << r_cleanup_inst.read() |
---|
| 4302 | << " / last = " << last |
---|
| 4303 | << std::endl; |
---|
| 4304 | } |
---|
| 4305 | #endif |
---|
| 4306 | break; |
---|
| 4307 | } |
---|
| 4308 | |
---|
| 4309 | case CLEANUP_HEAP_CLEAN: |
---|
| 4310 | { |
---|
| 4311 | // remove a copy in the linked list |
---|
| 4312 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_CLEANUP) |
---|
| 4313 | { |
---|
| 4314 | std::cout |
---|
| 4315 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4316 | << " CLEANUP_HEAP_CLEAN state" |
---|
| 4317 | << "Bad HEAP allocation" << std::endl; |
---|
| 4318 | |
---|
| 4319 | exit(0); |
---|
| 4320 | } |
---|
| 4321 | |
---|
| 4322 | HeapEntry heap_entry; |
---|
| 4323 | heap_entry.owner.srcid = r_cleanup_prev_srcid.read(); |
---|
| 4324 | heap_entry.owner.inst = r_cleanup_prev_inst.read(); |
---|
| 4325 | |
---|
| 4326 | #if L1_MULTI_CACHE |
---|
| 4327 | heap_entry.owner.cache_id = r_cleanup_prev_cache_id.read(); |
---|
| 4328 | #endif |
---|
| 4329 | |
---|
| 4330 | bool last = (r_cleanup_next_ptr.read() == r_cleanup_ptr.read()); |
---|
| 4331 | |
---|
| 4332 | // this is the last entry of the list of copies |
---|
| 4333 | if(last) |
---|
| 4334 | { |
---|
| 4335 | heap_entry.next = r_cleanup_prev_ptr.read(); |
---|
| 4336 | } |
---|
| 4337 | // this is not the last entry |
---|
| 4338 | else |
---|
| 4339 | { |
---|
| 4340 | heap_entry.next = r_cleanup_ptr.read(); |
---|
| 4341 | } |
---|
| 4342 | |
---|
| 4343 | m_heap.write(r_cleanup_prev_ptr.read(), heap_entry); |
---|
| 4344 | |
---|
| 4345 | r_cleanup_fsm = CLEANUP_HEAP_FREE; |
---|
| 4346 | |
---|
| 4347 | #if DEBUG_MEMC_CLEANUP |
---|
| 4348 | if(m_debug_cleanup_fsm) |
---|
| 4349 | { |
---|
| 4350 | std::cout |
---|
| 4351 | << " <MEMC " << name() |
---|
| 4352 | << ".CLEANUP_HEAP_SEARCH> Remove the copy in the linked list" |
---|
| 4353 | << std::endl; |
---|
| 4354 | } |
---|
| 4355 | #endif |
---|
| 4356 | break; |
---|
| 4357 | } |
---|
| 4358 | |
---|
| 4359 | case CLEANUP_HEAP_FREE: |
---|
| 4360 | { |
---|
| 4361 | // The heap entry pointed by r_cleanup_next_ptr is freed |
---|
| 4362 | // and becomes the head of the list of free entries |
---|
| 4363 | if(r_alloc_heap_fsm.read() != ALLOC_HEAP_CLEANUP) |
---|
| 4364 | { |
---|
| 4365 | std::cout |
---|
| 4366 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4367 | << " CLEANUP_HEAP_CLEAN state" << std::endl |
---|
| 4368 | << "Bad HEAP allocation" << std::endl; |
---|
| 4369 | |
---|
| 4370 | exit(0); |
---|
| 4371 | } |
---|
| 4372 | |
---|
| 4373 | HeapEntry heap_entry; |
---|
| 4374 | heap_entry.owner.srcid = 0; |
---|
| 4375 | heap_entry.owner.inst = false; |
---|
| 4376 | |
---|
| 4377 | #if L1_MULTI_CACHE |
---|
| 4378 | heap_entry.owner.cache_id = 0; |
---|
| 4379 | #endif |
---|
| 4380 | |
---|
| 4381 | if(m_heap.is_full()) |
---|
| 4382 | { |
---|
| 4383 | heap_entry.next = r_cleanup_next_ptr.read(); |
---|
| 4384 | } |
---|
| 4385 | else |
---|
| 4386 | { |
---|
| 4387 | heap_entry.next = m_heap.next_free_ptr(); |
---|
| 4388 | } |
---|
| 4389 | |
---|
| 4390 | m_heap.write(r_cleanup_next_ptr.read(),heap_entry); |
---|
| 4391 | m_heap.write_free_ptr(r_cleanup_next_ptr.read()); |
---|
| 4392 | m_heap.unset_full(); |
---|
| 4393 | |
---|
| 4394 | r_cleanup_fsm = CLEANUP_SEND_ACK; |
---|
| 4395 | |
---|
| 4396 | #if DEBUG_MEMC_CLEANUP |
---|
| 4397 | if(m_debug_cleanup_fsm) |
---|
| 4398 | { |
---|
| 4399 | std::cout |
---|
| 4400 | << " <MEMC " << name() |
---|
| 4401 | << ".CLEANUP_HEAP_SEARCH> Update the list of free entries" |
---|
| 4402 | << std::endl; |
---|
| 4403 | } |
---|
| 4404 | #endif |
---|
| 4405 | break; |
---|
| 4406 | } |
---|
| 4407 | |
---|
| 4408 | case CLEANUP_UPT_LOCK: |
---|
| 4409 | { |
---|
| 4410 | // search pending invalidate transaction matching the Cleanup NLINE in the UPDATE TABLE |
---|
| 4411 | // get the lock in the UPDATE_TABLE |
---|
| 4412 | if(r_alloc_upt_fsm.read() != ALLOC_UPT_CLEANUP) break; |
---|
| 4413 | |
---|
| 4414 | size_t index = 0; |
---|
| 4415 | bool match_inval; |
---|
| 4416 | |
---|
[346] | 4417 | match_inval = m_upt.search_inval(r_cleanup_nline.read(), index); |
---|
[331] | 4418 | |
---|
| 4419 | // no pending inval |
---|
| 4420 | if(not match_inval) |
---|
| 4421 | { |
---|
| 4422 | r_cleanup_fsm = CLEANUP_SEND_ACK; |
---|
| 4423 | |
---|
| 4424 | #if DEBUG_MEMC_CLEANUP |
---|
| 4425 | if(m_debug_cleanup_fsm) |
---|
| 4426 | { |
---|
| 4427 | std::cout |
---|
| 4428 | << " <MEMC " << name() |
---|
| 4429 | << ".CLEANUP_UPT_LOCK> Unexpected cleanup" |
---|
| 4430 | << " with no corresponding UPT entry:" |
---|
| 4431 | << " address = " << std::hex |
---|
| 4432 | << (r_cleanup_nline.read() *4*m_words) |
---|
| 4433 | << std::endl; |
---|
| 4434 | } |
---|
| 4435 | #endif |
---|
| 4436 | break; |
---|
| 4437 | } |
---|
| 4438 | |
---|
| 4439 | // pending inval |
---|
[346] | 4440 | r_cleanup_write_srcid = m_upt.srcid(index); |
---|
| 4441 | r_cleanup_write_trdid = m_upt.trdid(index); |
---|
| 4442 | r_cleanup_write_pktid = m_upt.pktid(index); |
---|
| 4443 | r_cleanup_write_need_rsp = m_upt.need_rsp(index); |
---|
[331] | 4444 | r_cleanup_index = index; |
---|
| 4445 | |
---|
| 4446 | r_cleanup_fsm = CLEANUP_UPT_DECREMENT; |
---|
| 4447 | |
---|
| 4448 | #if DEBUG_MEMC_CLEANUP |
---|
| 4449 | if(m_debug_cleanup_fsm) |
---|
| 4450 | { |
---|
| 4451 | std::cout |
---|
| 4452 | << " <MEMC " << name() |
---|
| 4453 | << ".CLEANUP_UPT_LOCK> Cleanup matching pending" |
---|
| 4454 | << " invalidate transaction on UPT:" |
---|
| 4455 | << std::hex |
---|
| 4456 | << " address = " << r_cleanup_nline.read() * m_words * 4 |
---|
| 4457 | << " upt_entry = " << index |
---|
| 4458 | << std::endl; |
---|
| 4459 | } |
---|
| 4460 | #endif |
---|
| 4461 | break; |
---|
| 4462 | } |
---|
| 4463 | |
---|
| 4464 | case CLEANUP_UPT_DECREMENT: |
---|
| 4465 | { |
---|
| 4466 | // decrement response counter in UPT matching entry |
---|
| 4467 | if(r_alloc_upt_fsm.read() != ALLOC_UPT_CLEANUP) |
---|
| 4468 | { |
---|
| 4469 | std::cout |
---|
| 4470 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4471 | << " CLEANUP_UPT_DECREMENT state" << std::endl |
---|
| 4472 | << "Bad UPT allocation" |
---|
| 4473 | << std::endl; |
---|
| 4474 | |
---|
| 4475 | exit(0); |
---|
| 4476 | } |
---|
| 4477 | |
---|
| 4478 | size_t count = 0; |
---|
[346] | 4479 | m_upt.decrement(r_cleanup_index.read(), count); |
---|
[331] | 4480 | |
---|
| 4481 | // invalidation transaction finished |
---|
| 4482 | // (all acknowledgements received) |
---|
| 4483 | if(count == 0) |
---|
| 4484 | { |
---|
| 4485 | r_cleanup_fsm = CLEANUP_UPT_CLEAR; |
---|
| 4486 | } |
---|
| 4487 | // invalidation transaction not finished |
---|
| 4488 | else |
---|
| 4489 | { |
---|
| 4490 | r_cleanup_fsm = CLEANUP_SEND_ACK ; |
---|
| 4491 | } |
---|
| 4492 | |
---|
| 4493 | #if DEBUG_MEMC_CLEANUP |
---|
| 4494 | if(m_debug_cleanup_fsm) |
---|
| 4495 | { |
---|
| 4496 | std::cout |
---|
| 4497 | << " <MEMC " << name() |
---|
| 4498 | << ".CLEANUP_UPT_DECREMENT> Decrement response counter in UPT:" |
---|
| 4499 | << " UPT_index = " << r_cleanup_index.read() |
---|
| 4500 | << " rsp_count = " << count |
---|
| 4501 | << std::endl; |
---|
| 4502 | } |
---|
| 4503 | #endif |
---|
| 4504 | break; |
---|
| 4505 | } |
---|
| 4506 | |
---|
| 4507 | case CLEANUP_UPT_CLEAR: |
---|
| 4508 | { |
---|
| 4509 | // Clear UPT entry of finished invalidation transaction |
---|
| 4510 | if(r_alloc_upt_fsm.read() != ALLOC_UPT_CLEANUP) |
---|
| 4511 | { |
---|
| 4512 | std::cout |
---|
| 4513 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4514 | << " CLEANUP_UPT_CLEAR state" << std::endl |
---|
| 4515 | << "Bad UPT allocation" |
---|
| 4516 | << std::endl; |
---|
| 4517 | |
---|
| 4518 | exit(0); |
---|
| 4519 | } |
---|
| 4520 | |
---|
[346] | 4521 | m_upt.clear(r_cleanup_index.read()); |
---|
[331] | 4522 | |
---|
| 4523 | if(r_cleanup_write_need_rsp.read()) |
---|
| 4524 | { |
---|
| 4525 | r_cleanup_fsm = CLEANUP_WRITE_RSP; |
---|
| 4526 | } |
---|
| 4527 | else |
---|
| 4528 | { |
---|
| 4529 | r_cleanup_fsm = CLEANUP_SEND_ACK; |
---|
| 4530 | } |
---|
| 4531 | |
---|
| 4532 | #if DEBUG_MEMC_CLEANUP |
---|
| 4533 | if(m_debug_cleanup_fsm) |
---|
| 4534 | { |
---|
| 4535 | std::cout |
---|
| 4536 | << " <MEMC " << name() |
---|
| 4537 | << ".CLEANUP_UPT_CLEAR> Clear entry in UPT:" |
---|
| 4538 | << " UPT_index = " << r_cleanup_index.read() |
---|
| 4539 | << std::endl; |
---|
| 4540 | } |
---|
| 4541 | #endif |
---|
| 4542 | break; |
---|
| 4543 | } |
---|
| 4544 | |
---|
| 4545 | case CLEANUP_WRITE_RSP: |
---|
| 4546 | { |
---|
| 4547 | // response to a previous write on the direct network |
---|
| 4548 | // wait if pending request to the TGT_RSP FSM |
---|
| 4549 | if(r_cleanup_to_tgt_rsp_req.read()) break; |
---|
| 4550 | |
---|
| 4551 | // no pending request |
---|
| 4552 | r_cleanup_to_tgt_rsp_req = true; |
---|
| 4553 | r_cleanup_to_tgt_rsp_srcid = r_cleanup_write_srcid.read(); |
---|
| 4554 | r_cleanup_to_tgt_rsp_trdid = r_cleanup_write_trdid.read(); |
---|
| 4555 | r_cleanup_to_tgt_rsp_pktid = r_cleanup_write_pktid.read(); |
---|
| 4556 | |
---|
| 4557 | r_cleanup_fsm = CLEANUP_SEND_ACK; |
---|
| 4558 | |
---|
| 4559 | #if DEBUG_MEMC_CLEANUP |
---|
| 4560 | if(m_debug_cleanup_fsm) |
---|
| 4561 | { |
---|
| 4562 | std::cout |
---|
| 4563 | << " <MEMC " << name() |
---|
| 4564 | << ".CLEANUP_WRITE_RSP> Send a response to a previous" |
---|
| 4565 | << " write request waiting for coherence transaction completion: " |
---|
| 4566 | << " rsrcid = " << std::dec << r_cleanup_write_srcid.read() |
---|
| 4567 | << " / rtrdid = " << std::dec << r_cleanup_write_trdid.read() |
---|
| 4568 | << std::endl; |
---|
| 4569 | } |
---|
| 4570 | #endif |
---|
| 4571 | break; |
---|
| 4572 | } |
---|
| 4573 | |
---|
| 4574 | case CLEANUP_SEND_ACK: |
---|
| 4575 | { |
---|
| 4576 | // acknowledgement to a cleanup command |
---|
| 4577 | // on the coherence network (request to the CC_SEND FSM). |
---|
| 4578 | // wait if pending request to the CC_SEND FSM |
---|
| 4579 | if(r_cleanup_to_cc_send_req.read()) break; |
---|
| 4580 | |
---|
| 4581 | r_cleanup_to_cc_send_req = true; |
---|
| 4582 | r_cleanup_to_cc_send_set_index = r_cleanup_nline.read() & 0xFFFF; |
---|
| 4583 | r_cleanup_to_cc_send_way_index = r_cleanup_way_index.read(); |
---|
| 4584 | r_cleanup_to_cc_send_srcid = r_cleanup_srcid.read(); |
---|
| 4585 | r_cleanup_to_cc_send_inst = r_cleanup_inst.read(); |
---|
| 4586 | |
---|
| 4587 | r_cleanup_fsm = CLEANUP_IDLE; |
---|
| 4588 | |
---|
| 4589 | #if DEBUG_MEMC_CLEANUP |
---|
| 4590 | if(m_debug_cleanup_fsm) |
---|
| 4591 | { |
---|
| 4592 | std::cout |
---|
| 4593 | << " <MEMC " << name() |
---|
| 4594 | << ".CLEANUP_SEND_ACK> Send the response to a cleanup request:" |
---|
| 4595 | << " srcid = " << std::dec << r_cleanup_srcid.read() |
---|
| 4596 | << std::endl; |
---|
| 4597 | } |
---|
| 4598 | #endif |
---|
| 4599 | break; |
---|
| 4600 | } |
---|
| 4601 | } // end switch cleanup fsm |
---|
| 4602 | |
---|
| 4603 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 4604 | // CAS FSM |
---|
| 4605 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 4606 | // The CAS FSM handles the CAS (Store Conditionnal) atomic commands, |
---|
| 4607 | // that are handled as "compare-and-swap instructions. |
---|
| 4608 | // |
---|
| 4609 | // This command contains two or four flits: |
---|
| 4610 | // - In case of 32 bits atomic access, the first flit contains the value read |
---|
| 4611 | // by a previous LL instruction, the second flit contains the value to be writen. |
---|
| 4612 | // - In case of 64 bits atomic access, the 2 first flits contains the value read |
---|
| 4613 | // by a previous LL instruction, the 2 next flits contains the value to be writen. |
---|
| 4614 | // |
---|
| 4615 | // The target address is cachable. If it is replicated in other L1 caches |
---|
| 4616 | // than the writer, a coherence operation is done. |
---|
| 4617 | // |
---|
| 4618 | // It access the directory to check hit / miss. |
---|
| 4619 | // - In case of miss, the CAS FSM must register a GET transaction in TRT. |
---|
| 4620 | // If a read transaction to the XRAM for this line already exists, |
---|
| 4621 | // or if the transaction table is full, it goes to the WAIT state |
---|
| 4622 | // to release the locks and try again. When the GET transaction has been |
---|
| 4623 | // launched, it goes to the WAIT state and try again. |
---|
| 4624 | // The CAS request is not consumed in the FIFO until a HIT is obtained. |
---|
| 4625 | // - In case of hit... |
---|
| 4626 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 4627 | |
---|
| 4628 | switch(r_cas_fsm.read()) |
---|
| 4629 | { |
---|
| 4630 | ///////////// |
---|
| 4631 | case CAS_IDLE: // fill the local rdata buffers |
---|
| 4632 | { |
---|
| 4633 | if(m_cmd_cas_addr_fifo.rok()) |
---|
| 4634 | { |
---|
| 4635 | |
---|
| 4636 | #if DEBUG_MEMC_CAS |
---|
| 4637 | if(m_debug_cas_fsm) |
---|
| 4638 | { |
---|
| 4639 | std::cout << " <MEMC " << name() << ".CAS_IDLE> CAS command: " << std::hex |
---|
| 4640 | << " srcid = " << std::dec << m_cmd_cas_srcid_fifo.read() |
---|
| 4641 | << " addr = " << std::hex << m_cmd_cas_addr_fifo.read() |
---|
| 4642 | << " wdata = " << m_cmd_cas_wdata_fifo.read() |
---|
| 4643 | << " eop = " << std::dec << m_cmd_cas_eop_fifo.read() |
---|
| 4644 | << " cpt = " << std::dec << r_cas_cpt.read() << std::endl; |
---|
| 4645 | } |
---|
| 4646 | #endif |
---|
| 4647 | if(m_cmd_cas_eop_fifo.read()) |
---|
| 4648 | { |
---|
| 4649 | m_cpt_cas++; |
---|
| 4650 | r_cas_fsm = CAS_DIR_REQ; |
---|
| 4651 | } |
---|
| 4652 | else // we keep the last word in the FIFO |
---|
| 4653 | { |
---|
| 4654 | cmd_cas_fifo_get = true; |
---|
| 4655 | } |
---|
| 4656 | // We fill the two buffers |
---|
| 4657 | if(r_cas_cpt.read() < 2) // 32 bits access |
---|
| 4658 | r_cas_rdata[r_cas_cpt.read()] = m_cmd_cas_wdata_fifo.read(); |
---|
| 4659 | |
---|
| 4660 | if((r_cas_cpt.read() == 1) && m_cmd_cas_eop_fifo.read()) |
---|
| 4661 | r_cas_wdata = m_cmd_cas_wdata_fifo.read(); |
---|
| 4662 | |
---|
| 4663 | if(r_cas_cpt.read() >3) // more than 4 flits... |
---|
| 4664 | { |
---|
| 4665 | std::cout << "VCI_MEM_CACHE ERROR in CAS_IDLE state : illegal CAS command" |
---|
| 4666 | << std::endl; |
---|
| 4667 | exit(0); |
---|
| 4668 | } |
---|
| 4669 | |
---|
| 4670 | if(r_cas_cpt.read() ==2) |
---|
| 4671 | r_cas_wdata = m_cmd_cas_wdata_fifo.read(); |
---|
| 4672 | |
---|
| 4673 | r_cas_cpt = r_cas_cpt.read() +1; |
---|
| 4674 | } |
---|
| 4675 | break; |
---|
| 4676 | } |
---|
| 4677 | |
---|
| 4678 | ///////////////// |
---|
| 4679 | case CAS_DIR_REQ: |
---|
| 4680 | { |
---|
| 4681 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_CAS) |
---|
| 4682 | { |
---|
| 4683 | r_cas_fsm = CAS_DIR_LOCK; |
---|
| 4684 | } |
---|
| 4685 | |
---|
| 4686 | #if DEBUG_MEMC_CAS |
---|
| 4687 | if(m_debug_cas_fsm) |
---|
| 4688 | { |
---|
| 4689 | std::cout |
---|
| 4690 | << " <MEMC " << name() << ".CAS_DIR_REQ> Requesting DIR lock " |
---|
| 4691 | << std::endl; |
---|
| 4692 | } |
---|
| 4693 | #endif |
---|
| 4694 | break; |
---|
| 4695 | } |
---|
| 4696 | |
---|
| 4697 | ///////////////// |
---|
| 4698 | case CAS_DIR_LOCK: // Read the directory |
---|
| 4699 | { |
---|
| 4700 | if(r_alloc_dir_fsm.read() == ALLOC_DIR_CAS) |
---|
| 4701 | { |
---|
| 4702 | size_t way = 0; |
---|
| 4703 | DirectoryEntry entry(m_cache_directory.read(m_cmd_cas_addr_fifo.read(), way)); |
---|
| 4704 | |
---|
| 4705 | r_cas_is_cnt = entry.is_cnt; |
---|
| 4706 | r_cas_dirty = entry.dirty; |
---|
| 4707 | r_cas_tag = entry.tag; |
---|
| 4708 | r_cas_way = way; |
---|
| 4709 | r_cas_copy = entry.owner.srcid; |
---|
| 4710 | #if L1_MULTI_CACHE |
---|
| 4711 | r_cas_copy_cache = entry.owner.cache_id; |
---|
| 4712 | #endif |
---|
| 4713 | r_cas_copy_inst = entry.owner.inst; |
---|
| 4714 | r_cas_ptr = entry.ptr; |
---|
| 4715 | r_cas_count = entry.count; |
---|
| 4716 | |
---|
| 4717 | if(entry.valid) r_cas_fsm = CAS_DIR_HIT_READ; |
---|
| 4718 | else r_cas_fsm = CAS_MISS_TRT_LOCK; |
---|
| 4719 | |
---|
| 4720 | #if DEBUG_MEMC_CAS |
---|
| 4721 | if(m_debug_cas_fsm) |
---|
| 4722 | { |
---|
| 4723 | std::cout << " <MEMC " << name() << ".CAS_DIR_LOCK> Directory acces" |
---|
| 4724 | << " / address = " << std::hex << m_cmd_cas_addr_fifo.read() |
---|
| 4725 | << " / hit = " << std::dec << entry.valid |
---|
| 4726 | << " / count = " << entry.count |
---|
| 4727 | << " / is_cnt = " << entry.is_cnt << std::endl; |
---|
| 4728 | } |
---|
| 4729 | #endif |
---|
| 4730 | } |
---|
| 4731 | else |
---|
| 4732 | { |
---|
| 4733 | std::cout |
---|
| 4734 | << "VCI_MEM_CACHE ERROR " << name() |
---|
| 4735 | << " CAS_DIR_LOCK state" << std::endl |
---|
| 4736 | << "Bad DIR allocation" << std::endl; |
---|
| 4737 | |
---|
| 4738 | exit(0); |
---|
| 4739 | } |
---|
| 4740 | |
---|
| 4741 | break; |
---|
| 4742 | } |
---|
| 4743 | ///////////////////// |
---|
| 4744 | case CAS_DIR_HIT_READ: // update directory for lock and dirty bit |
---|
| 4745 | // and check data change in cache |
---|
| 4746 | { |
---|
| 4747 | size_t way = r_cas_way.read(); |
---|
| 4748 | size_t set = m_y[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4749 | |
---|
| 4750 | // update directory (lock & dirty bits) |
---|
| 4751 | DirectoryEntry entry; |
---|
| 4752 | entry.valid = true; |
---|
| 4753 | entry.is_cnt = r_cas_is_cnt.read(); |
---|
| 4754 | entry.dirty = true; |
---|
| 4755 | entry.lock = true; |
---|
| 4756 | entry.tag = r_cas_tag.read(); |
---|
| 4757 | entry.owner.srcid = r_cas_copy.read(); |
---|
| 4758 | #if L1_MULTI_CACHE |
---|
| 4759 | entry.owner.cache_id = r_cas_copy_cache.read(); |
---|
| 4760 | #endif |
---|
| 4761 | entry.owner.inst = r_cas_copy_inst.read(); |
---|
| 4762 | entry.count = r_cas_count.read(); |
---|
| 4763 | entry.ptr = r_cas_ptr.read(); |
---|
| 4764 | |
---|
| 4765 | m_cache_directory.write(set, way, entry); |
---|
| 4766 | |
---|
| 4767 | // Stored data from cache in buffer to do the comparison in next state |
---|
| 4768 | m_cache_data.read_line(way, set, r_cas_data); |
---|
| 4769 | |
---|
| 4770 | r_cas_fsm = CAS_DIR_HIT_COMPARE; |
---|
| 4771 | |
---|
| 4772 | #if DEBUG_MEMC_CAS |
---|
| 4773 | if(m_debug_cas_fsm) |
---|
| 4774 | { |
---|
| 4775 | std::cout |
---|
| 4776 | << " <MEMC " << name() << ".CAS_DIR_HIT_READ> Read data from " |
---|
| 4777 | << " cache and store it in buffer" |
---|
| 4778 | << std::endl; |
---|
| 4779 | } |
---|
| 4780 | #endif |
---|
| 4781 | break; |
---|
| 4782 | } |
---|
| 4783 | |
---|
| 4784 | case CAS_DIR_HIT_COMPARE: |
---|
| 4785 | { |
---|
| 4786 | size_t word = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4787 | |
---|
| 4788 | // Read data in buffer & check data change |
---|
| 4789 | bool ok = (r_cas_rdata[0].read() == r_cas_data[word].read()); |
---|
| 4790 | |
---|
| 4791 | if(r_cas_cpt.read() == 4) // 64 bits CAS |
---|
| 4792 | ok &= (r_cas_rdata[1] == r_cas_data[word+1]); |
---|
| 4793 | |
---|
| 4794 | // to avoid livelock, force the atomic access to fail pseudo-randomly |
---|
| 4795 | bool forced_fail = ((r_cas_lfsr % (64) == 0) && RANDOMIZE_CAS); |
---|
| 4796 | r_cas_lfsr = (r_cas_lfsr >> 1) ^ ((- (r_cas_lfsr & 1)) & 0xd0000001); |
---|
| 4797 | |
---|
| 4798 | // cas success |
---|
| 4799 | if(ok and not forced_fail) |
---|
| 4800 | { |
---|
| 4801 | r_cas_fsm = CAS_DIR_HIT_WRITE; |
---|
| 4802 | } |
---|
| 4803 | // cas failure |
---|
| 4804 | else |
---|
| 4805 | { |
---|
| 4806 | r_cas_fsm = CAS_RSP_FAIL; |
---|
| 4807 | } |
---|
| 4808 | |
---|
| 4809 | #if DEBUG_MEMC_CAS |
---|
| 4810 | if(m_debug_cas_fsm) |
---|
| 4811 | { |
---|
| 4812 | std::cout << " <MEMC " << name() << ".CAS_DIR_HIT_COMPARE> Compare the old" |
---|
| 4813 | << " and the new data" |
---|
| 4814 | << " / expected value = " << r_cas_rdata[0].read() |
---|
| 4815 | << " / actual value = " << r_cas_data[word].read() |
---|
| 4816 | << " / forced_fail = " << forced_fail << std::endl; |
---|
| 4817 | } |
---|
| 4818 | #endif |
---|
| 4819 | break; |
---|
| 4820 | } |
---|
| 4821 | ////////////////////// |
---|
| 4822 | case CAS_DIR_HIT_WRITE: // test if a CC transaction is required |
---|
| 4823 | // write data in cache if no CC request |
---|
| 4824 | { |
---|
| 4825 | // The CAS is a success => sw access to the llsc_global_table |
---|
| 4826 | m_llsc_table.sw(m_cmd_cas_addr_fifo.read()); |
---|
| 4827 | |
---|
| 4828 | // test coherence request |
---|
| 4829 | if(r_cas_count.read()) // replicated line |
---|
| 4830 | { |
---|
| 4831 | if(r_cas_is_cnt.read()) |
---|
| 4832 | { |
---|
| 4833 | r_cas_fsm = CAS_BC_TRT_LOCK; // broadcast invalidate required |
---|
| 4834 | } |
---|
| 4835 | else if(!r_cas_to_cc_send_multi_req.read() && |
---|
| 4836 | !r_cas_to_cc_send_brdcast_req.read()) |
---|
| 4837 | { |
---|
| 4838 | r_cas_fsm = CAS_UPT_LOCK; // multi update required |
---|
| 4839 | } |
---|
| 4840 | else |
---|
| 4841 | { |
---|
| 4842 | r_cas_fsm = CAS_WAIT; |
---|
| 4843 | } |
---|
| 4844 | } |
---|
| 4845 | else // no copies |
---|
| 4846 | { |
---|
| 4847 | size_t way = r_cas_way.read(); |
---|
| 4848 | size_t set = m_y[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4849 | size_t word = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4850 | |
---|
| 4851 | // cache update |
---|
| 4852 | m_cache_data.write(way, set, word, r_cas_wdata.read()); |
---|
| 4853 | if(r_cas_cpt.read() == 4) |
---|
| 4854 | m_cache_data.write(way, set, word+1, m_cmd_cas_wdata_fifo.read()); |
---|
| 4855 | |
---|
| 4856 | r_cas_fsm = CAS_RSP_SUCCESS; |
---|
| 4857 | |
---|
| 4858 | // monitor |
---|
| 4859 | if(m_monitor_ok) |
---|
| 4860 | { |
---|
| 4861 | vci_addr_t address = m_cmd_cas_addr_fifo.read(); |
---|
| 4862 | char buf[80]; |
---|
| 4863 | snprintf(buf, 80, "CAS_DIR_HIT_WRITE srcid %d", m_cmd_cas_srcid_fifo.read()); |
---|
| 4864 | check_monitor(buf, address, r_cas_wdata.read()); |
---|
| 4865 | |
---|
| 4866 | if(r_cas_cpt.read() == 4) |
---|
| 4867 | check_monitor(buf, address+4, m_cmd_cas_wdata_fifo.read()); |
---|
| 4868 | } |
---|
| 4869 | |
---|
| 4870 | #if DEBUG_MEMC_CAS |
---|
| 4871 | if(m_debug_cas_fsm) |
---|
| 4872 | { |
---|
| 4873 | std::cout << " <MEMC " << name() << ".CAS_DIR_HIT_WRITE> Update cache:" |
---|
| 4874 | << " way = " << std::dec << way |
---|
| 4875 | << " / set = " << set |
---|
| 4876 | << " / word = " << word |
---|
| 4877 | << " / value = " << r_cas_wdata.read() |
---|
| 4878 | << " / count = " << r_cas_count.read() << std::endl; |
---|
| 4879 | std::cout << " <MEMC " |
---|
| 4880 | << name() << ".CAS_DIR_HIT_WRITE> global_llsc_table SW access" << std::endl; |
---|
| 4881 | } |
---|
| 4882 | #endif |
---|
| 4883 | } |
---|
| 4884 | break; |
---|
| 4885 | } |
---|
| 4886 | ///////////////// |
---|
| 4887 | case CAS_UPT_LOCK: // try to register the transaction in UPT |
---|
| 4888 | // and write data in cache if successful registration |
---|
| 4889 | // releases locks to retry later if UPT full |
---|
| 4890 | { |
---|
| 4891 | if(r_alloc_upt_fsm.read() == ALLOC_UPT_CAS) |
---|
| 4892 | { |
---|
| 4893 | bool wok = false; |
---|
| 4894 | size_t index = 0; |
---|
| 4895 | size_t srcid = m_cmd_cas_srcid_fifo.read(); |
---|
| 4896 | size_t trdid = m_cmd_cas_trdid_fifo.read(); |
---|
| 4897 | size_t pktid = m_cmd_cas_pktid_fifo.read(); |
---|
| 4898 | addr_t nline = m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4899 | size_t nb_copies = r_cas_count.read(); |
---|
| 4900 | |
---|
[346] | 4901 | wok = m_upt.set(true, // it's an update transaction |
---|
[331] | 4902 | false, // it's not a broadcast |
---|
| 4903 | true, // it needs a response |
---|
| 4904 | srcid, |
---|
| 4905 | trdid, |
---|
| 4906 | pktid, |
---|
| 4907 | nline, |
---|
| 4908 | nb_copies, |
---|
| 4909 | index); |
---|
| 4910 | if(wok) // coherence transaction registered in UPT |
---|
| 4911 | { |
---|
| 4912 | // cache update |
---|
| 4913 | size_t way = r_cas_way.read(); |
---|
| 4914 | size_t set = m_y[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4915 | size_t word = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4916 | |
---|
| 4917 | m_cache_data.write(way, set, word, r_cas_wdata.read()); |
---|
| 4918 | if(r_cas_cpt.read() ==4) |
---|
| 4919 | m_cache_data.write(way, set, word+1, m_cmd_cas_wdata_fifo.read()); |
---|
| 4920 | |
---|
| 4921 | r_cas_upt_index = index; |
---|
| 4922 | r_cas_fsm = CAS_UPT_HEAP_LOCK; |
---|
| 4923 | |
---|
| 4924 | // monitor |
---|
| 4925 | if(m_monitor_ok) |
---|
| 4926 | { |
---|
| 4927 | vci_addr_t address = m_cmd_cas_addr_fifo.read(); |
---|
| 4928 | char buf[80]; |
---|
| 4929 | snprintf(buf, 80, "CAS_DIR_HIT_WRITE srcid %d", m_cmd_cas_srcid_fifo.read()); |
---|
| 4930 | check_monitor(buf, address, r_cas_wdata.read()); |
---|
| 4931 | |
---|
| 4932 | if(r_cas_cpt.read() ==4) |
---|
| 4933 | check_monitor(buf, address+4, m_cmd_cas_wdata_fifo.read()); |
---|
| 4934 | } |
---|
| 4935 | } |
---|
| 4936 | else // releases the locks protecting UPT and DIR UPT full |
---|
| 4937 | { |
---|
| 4938 | r_cas_fsm = CAS_WAIT; |
---|
| 4939 | } |
---|
| 4940 | |
---|
| 4941 | #if DEBUG_MEMC_CAS |
---|
| 4942 | if(m_debug_cas_fsm) |
---|
| 4943 | { |
---|
| 4944 | std::cout << " <MEMC " << name() |
---|
| 4945 | << ".CAS_UPT_LOCK> Register multi-update transaction in UPT" |
---|
| 4946 | << " / wok = " << wok |
---|
| 4947 | << " / nline = " << std::hex << nline |
---|
| 4948 | << " / count = " << nb_copies << std::endl; |
---|
| 4949 | } |
---|
| 4950 | #endif |
---|
| 4951 | } |
---|
| 4952 | break; |
---|
| 4953 | } |
---|
| 4954 | ///////////// |
---|
| 4955 | case CAS_WAIT: // release all locks and retry from beginning |
---|
| 4956 | { |
---|
| 4957 | |
---|
| 4958 | #if DEBUG_MEMC_CAS |
---|
| 4959 | if(m_debug_cas_fsm) |
---|
| 4960 | { |
---|
| 4961 | std::cout << " <MEMC " << name() |
---|
| 4962 | << ".CAS_WAIT> Release all locks" << std::endl; |
---|
| 4963 | } |
---|
| 4964 | #endif |
---|
| 4965 | r_cas_fsm = CAS_DIR_REQ; |
---|
| 4966 | break; |
---|
| 4967 | } |
---|
| 4968 | ////////////////// |
---|
| 4969 | case CAS_UPT_HEAP_LOCK: // lock the heap |
---|
| 4970 | { |
---|
| 4971 | if(r_alloc_heap_fsm.read() == ALLOC_HEAP_CAS) |
---|
| 4972 | { |
---|
| 4973 | |
---|
| 4974 | #if DEBUG_MEMC_CAS |
---|
| 4975 | if(m_debug_cas_fsm) |
---|
| 4976 | { |
---|
| 4977 | std::cout << " <MEMC " << name() |
---|
| 4978 | << ".CAS_UPT_HEAP_LOCK> Get access to the heap" << std::endl; |
---|
| 4979 | } |
---|
| 4980 | #endif |
---|
| 4981 | r_cas_fsm = CAS_UPT_REQ; |
---|
| 4982 | } |
---|
| 4983 | break; |
---|
| 4984 | } |
---|
| 4985 | //////////////// |
---|
| 4986 | case CAS_UPT_REQ: // send a first update request to CC_SEND FSM |
---|
| 4987 | { |
---|
| 4988 | assert((r_alloc_heap_fsm.read() == ALLOC_HEAP_CAS) and |
---|
| 4989 | "VCI_MEM_CACHE ERROR : bad HEAP allocation"); |
---|
| 4990 | |
---|
| 4991 | if(!r_cas_to_cc_send_multi_req.read() && !r_cas_to_cc_send_brdcast_req.read()) |
---|
| 4992 | { |
---|
| 4993 | r_cas_to_cc_send_brdcast_req = false; |
---|
| 4994 | r_cas_to_cc_send_trdid = r_cas_upt_index.read(); |
---|
| 4995 | r_cas_to_cc_send_nline = m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4996 | r_cas_to_cc_send_index = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 4997 | r_cas_to_cc_send_wdata = r_cas_wdata.read(); |
---|
| 4998 | |
---|
| 4999 | if(r_cas_cpt.read() == 4) |
---|
| 5000 | { |
---|
| 5001 | r_cas_to_cc_send_is_long = true; |
---|
| 5002 | r_cas_to_cc_send_wdata_high = m_cmd_cas_wdata_fifo.read(); |
---|
| 5003 | } |
---|
| 5004 | else |
---|
| 5005 | { |
---|
| 5006 | r_cas_to_cc_send_is_long = false; |
---|
| 5007 | r_cas_to_cc_send_wdata_high = 0; |
---|
| 5008 | } |
---|
| 5009 | |
---|
| 5010 | // We put the first copy in the fifo |
---|
| 5011 | cas_to_cc_send_fifo_put = true; |
---|
| 5012 | cas_to_cc_send_fifo_inst = r_cas_copy_inst.read(); |
---|
| 5013 | cas_to_cc_send_fifo_srcid = r_cas_copy.read(); |
---|
| 5014 | #if L1_MULTI_CACHE |
---|
| 5015 | cas_to_cc_send_fifo_cache_id= r_cas_copy_cache.read(); |
---|
| 5016 | #endif |
---|
| 5017 | if(r_cas_count.read() == 1) // one single copy |
---|
| 5018 | { |
---|
| 5019 | r_cas_fsm = CAS_IDLE; // Response will be sent after receiving |
---|
| 5020 | // update responses |
---|
| 5021 | cmd_cas_fifo_get = true; |
---|
| 5022 | r_cas_to_cc_send_multi_req = true; |
---|
| 5023 | r_cas_cpt = 0; |
---|
| 5024 | } |
---|
| 5025 | else // several copies |
---|
| 5026 | { |
---|
| 5027 | r_cas_fsm = CAS_UPT_NEXT; |
---|
| 5028 | } |
---|
| 5029 | |
---|
| 5030 | #if DEBUG_MEMC_CAS |
---|
| 5031 | if(m_debug_cas_fsm) |
---|
| 5032 | { |
---|
| 5033 | std::cout << " <MEMC " << name() << ".CAS_UPT_REQ> Send the first update request to CC_SEND FSM " |
---|
| 5034 | << " / address = " << std::hex << m_cmd_cas_addr_fifo.read() |
---|
| 5035 | << " / wdata = " << std::hex << r_cas_wdata.read() |
---|
| 5036 | << " / srcid = " << std::dec << r_cas_copy.read() |
---|
| 5037 | << " / inst = " << std::dec << r_cas_copy_inst.read() << std::endl; |
---|
| 5038 | } |
---|
| 5039 | #endif |
---|
| 5040 | } |
---|
| 5041 | break; |
---|
| 5042 | } |
---|
| 5043 | ///////////////// |
---|
| 5044 | case CAS_UPT_NEXT: // send a multi-update request to CC_SEND FSM |
---|
| 5045 | { |
---|
| 5046 | assert((r_alloc_heap_fsm.read() == ALLOC_HEAP_CAS) |
---|
| 5047 | and "VCI_MEM_CACHE ERROR : bad HEAP allocation"); |
---|
| 5048 | |
---|
| 5049 | HeapEntry entry = m_heap.read(r_cas_ptr.read()); |
---|
| 5050 | cas_to_cc_send_fifo_srcid = entry.owner.srcid; |
---|
| 5051 | #if L1_MULTI_CACHE |
---|
| 5052 | cas_to_cc_send_fifo_cache_id = entry.owner.cache_id; |
---|
| 5053 | #endif |
---|
| 5054 | cas_to_cc_send_fifo_inst = entry.owner.inst; |
---|
| 5055 | cas_to_cc_send_fifo_put = true; |
---|
| 5056 | |
---|
| 5057 | if(m_cas_to_cc_send_inst_fifo.wok()) // request accepted by CC_SEND FSM |
---|
| 5058 | { |
---|
| 5059 | r_cas_ptr = entry.next; |
---|
| 5060 | if(entry.next == r_cas_ptr.read()) // last copy |
---|
| 5061 | { |
---|
| 5062 | r_cas_to_cc_send_multi_req = true; |
---|
| 5063 | r_cas_fsm = CAS_IDLE; // Response will be sent after receiving |
---|
| 5064 | // all update responses |
---|
| 5065 | cmd_cas_fifo_get = true; |
---|
| 5066 | r_cas_cpt = 0; |
---|
| 5067 | } |
---|
| 5068 | } |
---|
| 5069 | |
---|
| 5070 | #if DEBUG_MEMC_CAS |
---|
| 5071 | if(m_debug_cas_fsm) |
---|
| 5072 | { |
---|
| 5073 | std::cout << " <MEMC " << name() << ".CAS_UPT_NEXT> Send the next update request to CC_SEND FSM " |
---|
| 5074 | << " / address = " << std::hex << m_cmd_cas_addr_fifo.read() |
---|
| 5075 | << " / wdata = " << std::hex << r_cas_wdata.read() |
---|
| 5076 | << " / srcid = " << std::dec << entry.owner.srcid |
---|
| 5077 | << " / inst = " << std::dec << entry.owner.inst << std::endl; |
---|
| 5078 | } |
---|
| 5079 | #endif |
---|
| 5080 | break; |
---|
| 5081 | } |
---|
| 5082 | ///////////////////// |
---|
| 5083 | case CAS_BC_TRT_LOCK: // check the TRT to register a PUT transaction |
---|
| 5084 | { |
---|
| 5085 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_CAS) |
---|
| 5086 | { |
---|
| 5087 | if(!r_cas_to_ixr_cmd_req) // we can transfer the request to IXR_CMD FSM |
---|
| 5088 | { |
---|
| 5089 | // fill the data buffer |
---|
| 5090 | size_t word = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5091 | for(size_t i = 0; i<m_words; i++) |
---|
| 5092 | { |
---|
| 5093 | if(i == word) |
---|
| 5094 | { |
---|
| 5095 | r_cas_to_ixr_cmd_data[i] = r_cas_wdata.read(); |
---|
| 5096 | } |
---|
| 5097 | else if((i == word+1) && (r_cas_cpt.read() == 4)) // 64 bit CAS |
---|
| 5098 | { |
---|
| 5099 | r_cas_to_ixr_cmd_data[i] = m_cmd_cas_wdata_fifo.read(); |
---|
| 5100 | } |
---|
| 5101 | else |
---|
| 5102 | { |
---|
| 5103 | r_cas_to_ixr_cmd_data[i] = r_cas_data[i].read(); |
---|
| 5104 | } |
---|
| 5105 | } |
---|
| 5106 | size_t wok_index = 0; |
---|
[346] | 5107 | bool wok = !m_trt.full(wok_index); |
---|
[331] | 5108 | if(wok) |
---|
| 5109 | { |
---|
| 5110 | r_cas_trt_index = wok_index; |
---|
| 5111 | r_cas_fsm = CAS_BC_UPT_LOCK; |
---|
| 5112 | } |
---|
| 5113 | else |
---|
| 5114 | { |
---|
| 5115 | r_cas_fsm = CAS_WAIT; |
---|
| 5116 | } |
---|
| 5117 | } |
---|
| 5118 | else |
---|
| 5119 | { |
---|
| 5120 | r_cas_fsm = CAS_WAIT; |
---|
| 5121 | } |
---|
| 5122 | } |
---|
| 5123 | break; |
---|
| 5124 | } |
---|
| 5125 | /////////////////// |
---|
| 5126 | case CAS_BC_UPT_LOCK: // register a broadcast inval transaction in UPT |
---|
| 5127 | // write data in cache in case of successful registration |
---|
| 5128 | { |
---|
| 5129 | if(r_alloc_upt_fsm.read() == ALLOC_UPT_CAS) |
---|
| 5130 | { |
---|
| 5131 | bool wok = false; |
---|
| 5132 | size_t index = 0; |
---|
| 5133 | size_t srcid = m_cmd_cas_srcid_fifo.read(); |
---|
| 5134 | size_t trdid = m_cmd_cas_trdid_fifo.read(); |
---|
| 5135 | size_t pktid = m_cmd_cas_pktid_fifo.read(); |
---|
| 5136 | addr_t nline = m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5137 | size_t nb_copies = r_cas_count.read(); |
---|
| 5138 | |
---|
| 5139 | // register a broadcast inval transaction in UPT |
---|
[346] | 5140 | wok = m_upt.set(false, // it's an inval transaction |
---|
[331] | 5141 | true, // it's a broadcast |
---|
| 5142 | true, // it needs a response |
---|
| 5143 | srcid, |
---|
| 5144 | trdid, |
---|
| 5145 | pktid, |
---|
| 5146 | nline, |
---|
| 5147 | nb_copies, |
---|
| 5148 | index); |
---|
| 5149 | |
---|
| 5150 | if(wok) // UPT not full |
---|
| 5151 | { |
---|
| 5152 | // cache update |
---|
| 5153 | size_t way = r_cas_way.read(); |
---|
| 5154 | size_t set = m_y[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5155 | size_t word = m_x[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5156 | |
---|
| 5157 | m_cache_data.write(way, set, word, r_cas_wdata.read()); |
---|
| 5158 | if(r_cas_cpt.read() ==4) |
---|
| 5159 | m_cache_data.write(way, set, word+1, m_cmd_cas_wdata_fifo.read()); |
---|
| 5160 | |
---|
| 5161 | // monitor |
---|
| 5162 | if(m_monitor_ok) |
---|
| 5163 | { |
---|
| 5164 | vci_addr_t address = m_cmd_cas_addr_fifo.read(); |
---|
| 5165 | char buf[80]; |
---|
| 5166 | snprintf(buf, 80, "CAS_DIR_HIT_WRITE srcid %d", m_cmd_cas_srcid_fifo.read()); |
---|
| 5167 | check_monitor(buf, address, r_cas_wdata.read()); |
---|
| 5168 | if(r_cas_cpt.read() ==4) |
---|
| 5169 | check_monitor(buf, address+4, m_cmd_cas_wdata_fifo.read()); |
---|
| 5170 | } |
---|
| 5171 | r_cas_upt_index = index; |
---|
| 5172 | r_cas_fsm = CAS_BC_DIR_INVAL; |
---|
| 5173 | #if DEBUG_MEMC_CAS |
---|
| 5174 | if(m_debug_cas_fsm) |
---|
| 5175 | { |
---|
| 5176 | std::cout << " <MEMC " << name() << ".CAS_BC_UPT_LOCK> Register a broadcast inval transaction in UPT" |
---|
| 5177 | << " / nline = " << nline |
---|
| 5178 | << " / count = " << nb_copies |
---|
| 5179 | << " / upt_index = " << index << std::endl; |
---|
| 5180 | } |
---|
| 5181 | #endif |
---|
| 5182 | } |
---|
| 5183 | else // releases the lock protecting UPT |
---|
| 5184 | { |
---|
| 5185 | r_cas_fsm = CAS_WAIT; |
---|
| 5186 | } |
---|
| 5187 | } |
---|
| 5188 | break; |
---|
| 5189 | } |
---|
| 5190 | ////////////////// |
---|
| 5191 | case CAS_BC_DIR_INVAL: // Register the PUT transaction in TRT, and inval the DIR entry |
---|
| 5192 | { |
---|
| 5193 | if((r_alloc_trt_fsm.read() == ALLOC_TRT_CAS) && |
---|
| 5194 | (r_alloc_upt_fsm.read() == ALLOC_UPT_CAS) && |
---|
| 5195 | (r_alloc_dir_fsm.read() == ALLOC_DIR_CAS)) |
---|
| 5196 | { |
---|
| 5197 | // set TRT |
---|
[346] | 5198 | m_trt.set(r_cas_trt_index.read(), |
---|
[331] | 5199 | false, // PUT request to XRAM |
---|
| 5200 | m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())], |
---|
| 5201 | 0, |
---|
| 5202 | 0, |
---|
| 5203 | 0, |
---|
| 5204 | false, // not a processor read |
---|
| 5205 | 0, |
---|
| 5206 | 0, |
---|
| 5207 | std::vector<be_t> (m_words,0), |
---|
| 5208 | std::vector<data_t> (m_words,0)); |
---|
| 5209 | |
---|
| 5210 | // invalidate directory entry |
---|
| 5211 | DirectoryEntry entry; |
---|
| 5212 | entry.valid = false; |
---|
| 5213 | entry.dirty = false; |
---|
| 5214 | entry.tag = 0; |
---|
| 5215 | entry.is_cnt = false; |
---|
| 5216 | entry.lock = false; |
---|
| 5217 | entry.count = 0; |
---|
| 5218 | entry.owner.srcid = 0; |
---|
| 5219 | #if L1_MULTI_CACHE |
---|
| 5220 | entry.owner.cache_id= 0; |
---|
| 5221 | #endif |
---|
| 5222 | entry.owner.inst = false; |
---|
| 5223 | entry.ptr = 0; |
---|
| 5224 | size_t set = m_y[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5225 | size_t way = r_cas_way.read(); |
---|
| 5226 | m_cache_directory.write(set, way, entry); |
---|
| 5227 | |
---|
| 5228 | r_cas_fsm = CAS_BC_CC_SEND; |
---|
| 5229 | |
---|
| 5230 | #if DEBUG_MEMC_CAS |
---|
| 5231 | if(m_debug_cas_fsm) |
---|
| 5232 | { |
---|
| 5233 | std::cout << " <MEMC " << name() << ".CAS_BC_DIR_INVAL> Register the PUT in TRT and invalidate DIR entry" |
---|
| 5234 | << " / nline = " << std::hex << m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())] |
---|
| 5235 | << " / set = " << std::dec << set << " / way = " << way << std::endl; |
---|
| 5236 | } |
---|
| 5237 | #endif |
---|
| 5238 | } |
---|
| 5239 | else |
---|
| 5240 | { |
---|
| 5241 | assert(false and "LOCK ERROR in CAS_FSM, STATE = CAS_BC_DIR_INVAL"); |
---|
| 5242 | } |
---|
| 5243 | break; |
---|
| 5244 | } |
---|
| 5245 | /////////////////// |
---|
| 5246 | case CAS_BC_CC_SEND: // Request the broadcast inval to CC_SEND FSM |
---|
| 5247 | { |
---|
| 5248 | if(!r_cas_to_cc_send_multi_req.read() && |
---|
| 5249 | !r_cas_to_cc_send_brdcast_req.read()) |
---|
| 5250 | { |
---|
| 5251 | r_cas_to_cc_send_multi_req = false; |
---|
| 5252 | r_cas_to_cc_send_brdcast_req = true; |
---|
| 5253 | r_cas_to_cc_send_trdid = r_cas_upt_index.read(); |
---|
| 5254 | r_cas_to_cc_send_nline = m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5255 | r_cas_to_cc_send_index = 0; |
---|
| 5256 | r_cas_to_cc_send_wdata = 0; |
---|
| 5257 | |
---|
| 5258 | r_cas_fsm = CAS_BC_XRAM_REQ; |
---|
| 5259 | } |
---|
| 5260 | break; |
---|
| 5261 | } |
---|
| 5262 | //////////////////// |
---|
| 5263 | case CAS_BC_XRAM_REQ: // request the IXR FSM to start a put transaction |
---|
| 5264 | { |
---|
| 5265 | if(!r_cas_to_ixr_cmd_req) |
---|
| 5266 | { |
---|
| 5267 | r_cas_to_ixr_cmd_req = true; |
---|
| 5268 | r_cas_to_ixr_cmd_write = true; |
---|
| 5269 | r_cas_to_ixr_cmd_nline = m_nline[(vci_addr_t)(m_cmd_cas_addr_fifo.read())]; |
---|
| 5270 | r_cas_to_ixr_cmd_trdid = r_cas_trt_index.read(); |
---|
| 5271 | r_cas_fsm = CAS_IDLE; |
---|
| 5272 | cmd_cas_fifo_get = true; |
---|
| 5273 | r_cas_cpt = 0; |
---|
| 5274 | |
---|
| 5275 | #if DEBUG_MEMC_CAS |
---|
| 5276 | if(m_debug_cas_fsm) |
---|
| 5277 | { |
---|
| 5278 | std::cout << " <MEMC " << name() << ".CAS_BC_XRAM_REQ> Request a PUT transaction to IXR_CMD FSM" << std::hex |
---|
| 5279 | << " / nline = " << m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()] |
---|
| 5280 | << " / trt_index = " << r_cas_trt_index.read() << std::endl; |
---|
| 5281 | } |
---|
| 5282 | #endif |
---|
| 5283 | } |
---|
| 5284 | else |
---|
| 5285 | { |
---|
| 5286 | std::cout << "MEM_CACHE, CAS_BC_XRAM_REQ state : request should not have been previously set" |
---|
| 5287 | << std::endl; |
---|
| 5288 | } |
---|
| 5289 | break; |
---|
| 5290 | } |
---|
| 5291 | ///////////////// |
---|
| 5292 | case CAS_RSP_FAIL: // request TGT_RSP FSM to send a failure response |
---|
| 5293 | { |
---|
| 5294 | if(!r_cas_to_tgt_rsp_req) |
---|
| 5295 | { |
---|
| 5296 | cmd_cas_fifo_get = true; |
---|
| 5297 | r_cas_cpt = 0; |
---|
| 5298 | r_cas_to_tgt_rsp_req = true; |
---|
| 5299 | r_cas_to_tgt_rsp_data = 1; |
---|
| 5300 | r_cas_to_tgt_rsp_srcid = m_cmd_cas_srcid_fifo.read(); |
---|
| 5301 | r_cas_to_tgt_rsp_trdid = m_cmd_cas_trdid_fifo.read(); |
---|
| 5302 | r_cas_to_tgt_rsp_pktid = m_cmd_cas_pktid_fifo.read(); |
---|
| 5303 | r_cas_fsm = CAS_IDLE; |
---|
| 5304 | |
---|
| 5305 | #if DEBUG_MEMC_CAS |
---|
| 5306 | if(m_debug_cas_fsm) |
---|
| 5307 | { |
---|
| 5308 | std::cout << " <MEMC " << name() << ".CAS_RSP_FAIL> Request TGT_RSP to send a failure response" << std::endl; |
---|
| 5309 | } |
---|
| 5310 | #endif |
---|
| 5311 | } |
---|
| 5312 | break; |
---|
| 5313 | } |
---|
| 5314 | //////////////////// |
---|
| 5315 | case CAS_RSP_SUCCESS: // request TGT_RSP FSM to send a success response |
---|
| 5316 | { |
---|
| 5317 | if(!r_cas_to_tgt_rsp_req) |
---|
| 5318 | { |
---|
| 5319 | cmd_cas_fifo_get = true; |
---|
| 5320 | r_cas_cpt = 0; |
---|
| 5321 | r_cas_to_tgt_rsp_req = true; |
---|
| 5322 | r_cas_to_tgt_rsp_data = 0; |
---|
| 5323 | r_cas_to_tgt_rsp_srcid = m_cmd_cas_srcid_fifo.read(); |
---|
| 5324 | r_cas_to_tgt_rsp_trdid = m_cmd_cas_trdid_fifo.read(); |
---|
| 5325 | r_cas_to_tgt_rsp_pktid = m_cmd_cas_pktid_fifo.read(); |
---|
| 5326 | r_cas_fsm = CAS_IDLE; |
---|
| 5327 | |
---|
| 5328 | #if DEBUG_MEMC_CAS |
---|
| 5329 | if(m_debug_cas_fsm) |
---|
| 5330 | { |
---|
| 5331 | std::cout << " <MEMC " << name() << ".CAS_RSP_SUCCESS> Request TGT_RSP to send a success response" << std::endl; |
---|
| 5332 | } |
---|
| 5333 | #endif |
---|
| 5334 | } |
---|
| 5335 | break; |
---|
| 5336 | } |
---|
| 5337 | ///////////////////// |
---|
| 5338 | case CAS_MISS_TRT_LOCK: // cache miss : request access to transaction Table |
---|
| 5339 | { |
---|
| 5340 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_CAS) |
---|
| 5341 | { |
---|
| 5342 | size_t index = 0; |
---|
[346] | 5343 | bool hit_read = m_trt.hit_read( |
---|
[331] | 5344 | m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()],index); |
---|
[346] | 5345 | bool hit_write = m_trt.hit_write( |
---|
[331] | 5346 | m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()]); |
---|
[346] | 5347 | bool wok = !m_trt.full(index); |
---|
[331] | 5348 | |
---|
| 5349 | #if DEBUG_MEMC_CAS |
---|
| 5350 | if(m_debug_cas_fsm) |
---|
| 5351 | { |
---|
| 5352 | std::cout << " <MEMC " << name() << ".CAS_MISS_TRT_LOCK> Check TRT state" |
---|
| 5353 | << " / hit_read = " << hit_read |
---|
| 5354 | << " / hit_write = " << hit_write |
---|
| 5355 | << " / wok = " << wok |
---|
| 5356 | << " / index = " << index << std::endl; |
---|
| 5357 | } |
---|
| 5358 | #endif |
---|
| 5359 | |
---|
| 5360 | if(hit_read || !wok || hit_write) // missing line already requested or no space in TRT |
---|
| 5361 | { |
---|
| 5362 | r_cas_fsm = CAS_WAIT; |
---|
| 5363 | } |
---|
| 5364 | else |
---|
| 5365 | { |
---|
| 5366 | r_cas_trt_index = index; |
---|
| 5367 | r_cas_fsm = CAS_MISS_TRT_SET; |
---|
| 5368 | } |
---|
| 5369 | } |
---|
| 5370 | break; |
---|
| 5371 | } |
---|
| 5372 | //////////////////// |
---|
| 5373 | case CAS_MISS_TRT_SET: // register the GET transaction in TRT |
---|
| 5374 | { |
---|
| 5375 | if(r_alloc_trt_fsm.read() == ALLOC_TRT_CAS) |
---|
| 5376 | { |
---|
| 5377 | std::vector<be_t> be_vector; |
---|
| 5378 | std::vector<data_t> data_vector; |
---|
| 5379 | be_vector.clear(); |
---|
| 5380 | data_vector.clear(); |
---|
| 5381 | for(size_t i=0; i<m_words; i++) |
---|
| 5382 | { |
---|
| 5383 | be_vector.push_back(0); |
---|
| 5384 | data_vector.push_back(0); |
---|
| 5385 | } |
---|
| 5386 | |
---|
[346] | 5387 | m_trt.set(r_cas_trt_index.read(), |
---|
[331] | 5388 | true, // read request |
---|
| 5389 | m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()], |
---|
| 5390 | m_cmd_cas_srcid_fifo.read(), |
---|
| 5391 | m_cmd_cas_trdid_fifo.read(), |
---|
| 5392 | m_cmd_cas_pktid_fifo.read(), |
---|
| 5393 | false, // write request from processor |
---|
| 5394 | 0, |
---|
| 5395 | 0, |
---|
| 5396 | be_vector, |
---|
| 5397 | data_vector); |
---|
| 5398 | r_cas_fsm = CAS_MISS_XRAM_REQ; |
---|
| 5399 | |
---|
| 5400 | #if DEBUG_MEMC_CAS |
---|
| 5401 | if(m_debug_cas_fsm) |
---|
| 5402 | { |
---|
| 5403 | std::cout << " <MEMC " << name() << ".CAS_MISS_TRT_SET> Register a GET transaction in TRT" << std::hex |
---|
| 5404 | << " / nline = " << m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()] |
---|
| 5405 | << " / trt_index = " << r_cas_trt_index.read() << std::endl; |
---|
| 5406 | } |
---|
| 5407 | #endif |
---|
| 5408 | } |
---|
| 5409 | break; |
---|
| 5410 | } |
---|
| 5411 | ////////////////////// |
---|
| 5412 | case CAS_MISS_XRAM_REQ: // request the IXR_CMD FSM to fetch the missing line |
---|
| 5413 | { |
---|
| 5414 | if(!r_cas_to_ixr_cmd_req) |
---|
| 5415 | { |
---|
| 5416 | r_cas_to_ixr_cmd_req = true; |
---|
| 5417 | r_cas_to_ixr_cmd_write = false; |
---|
| 5418 | r_cas_to_ixr_cmd_trdid = r_cas_trt_index.read(); |
---|
| 5419 | r_cas_to_ixr_cmd_nline = m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()]; |
---|
| 5420 | r_cas_fsm = CAS_WAIT; |
---|
| 5421 | |
---|
| 5422 | #if DEBUG_MEMC_CAS |
---|
| 5423 | if(m_debug_cas_fsm) |
---|
| 5424 | { |
---|
| 5425 | std::cout << " <MEMC " << name() << ".CAS_MISS_XRAM_REQ> Request a GET transaction to IXR_CMD FSM" << std::hex |
---|
| 5426 | << " / nline = " << m_nline[(vci_addr_t) m_cmd_cas_addr_fifo.read()] |
---|
| 5427 | << " / trt_index = " << r_cas_trt_index.read() << std::endl; |
---|
| 5428 | } |
---|
| 5429 | #endif |
---|
| 5430 | } |
---|
| 5431 | break; |
---|
| 5432 | } |
---|
| 5433 | } // end switch r_cas_fsm |
---|
| 5434 | |
---|
| 5435 | |
---|
| 5436 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 5437 | // CC_SEND FSM |
---|
| 5438 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 5439 | // The CC_SEND fsm controls the DSPIN initiator port on the coherence |
---|
| 5440 | // network, used to update or invalidate cache lines in L1 caches. |
---|
| 5441 | // |
---|
| 5442 | // This fsm is used also to acknowledge CLEANUP a command after request from |
---|
| 5443 | // the CLEANUP fsm. |
---|
| 5444 | // |
---|
| 5445 | // It implements a round-robin priority between the four possible client FSMs |
---|
| 5446 | // XRAM_RSP, WRITE, CAS and CLEANUP. Each FSM can request the next services: |
---|
| 5447 | // - r_xram_rsp_to_cc_send_multi_req : multi-inval |
---|
| 5448 | // r_xram_rsp_to_cc_send_brdcast_req : broadcast-inval |
---|
| 5449 | // - r_write_to_cc_send_multi_req : multi-update |
---|
| 5450 | // r_write_to_cc_send_brdcast_req : broadcast-inval |
---|
| 5451 | // - r_cas_to_cc_send_multi_req : multi-update |
---|
| 5452 | // r_cas_to_cc_send_brdcast_req : broadcast-inval |
---|
| 5453 | // - r_cleanup_to_cc_send_req : cleanup acknowledgement |
---|
| 5454 | // |
---|
| 5455 | // An inval request is a double DSPIN flit command containing: |
---|
| 5456 | // 1. the index of the line to be invalidated. |
---|
| 5457 | // |
---|
| 5458 | // An update request is a multi-flit DSPIN command containing: |
---|
| 5459 | // 1. the index of the cache line to be updated. |
---|
| 5460 | // 2. the index of the first modified word in the line. |
---|
| 5461 | // 3. the data to update |
---|
| 5462 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 5463 | |
---|
| 5464 | switch(r_cc_send_fsm.read()) |
---|
| 5465 | { |
---|
| 5466 | case CC_SEND_WRITE_IDLE: |
---|
| 5467 | { |
---|
| 5468 | // XRAM_RSP FSM has highest priority |
---|
| 5469 | if(m_xram_rsp_to_cc_send_inst_fifo.rok() || |
---|
| 5470 | r_xram_rsp_to_cc_send_multi_req.read()) |
---|
| 5471 | { |
---|
| 5472 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_HEADER; |
---|
| 5473 | m_cpt_inval++; |
---|
| 5474 | break; |
---|
| 5475 | } |
---|
| 5476 | |
---|
| 5477 | if(r_xram_rsp_to_cc_send_brdcast_req.read()) |
---|
| 5478 | { |
---|
| 5479 | r_cc_send_fsm = CC_SEND_XRAM_RSP_BRDCAST_HEADER; |
---|
| 5480 | m_cpt_inval++; |
---|
| 5481 | break; |
---|
| 5482 | } |
---|
| 5483 | |
---|
| 5484 | if(m_cas_to_cc_send_inst_fifo.rok() || |
---|
| 5485 | r_cas_to_cc_send_multi_req.read()) |
---|
| 5486 | { |
---|
| 5487 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5488 | m_cpt_update++; |
---|
| 5489 | break; |
---|
| 5490 | } |
---|
| 5491 | |
---|
| 5492 | if(r_cas_to_cc_send_brdcast_req.read()) |
---|
| 5493 | { |
---|
| 5494 | r_cc_send_fsm = CC_SEND_CAS_BRDCAST_HEADER; |
---|
| 5495 | m_cpt_inval++; |
---|
| 5496 | break; |
---|
| 5497 | } |
---|
| 5498 | |
---|
| 5499 | if (r_cleanup_to_cc_send_req.read()) |
---|
| 5500 | { |
---|
| 5501 | r_cc_send_fsm = CC_SEND_CLEANUP_ACK; |
---|
| 5502 | break; |
---|
| 5503 | } |
---|
| 5504 | |
---|
| 5505 | if(m_write_to_cc_send_inst_fifo.rok() || |
---|
| 5506 | r_write_to_cc_send_multi_req.read()) |
---|
| 5507 | { |
---|
| 5508 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_HEADER; |
---|
| 5509 | m_cpt_update++; |
---|
| 5510 | break; |
---|
| 5511 | } |
---|
| 5512 | |
---|
| 5513 | if(r_write_to_cc_send_brdcast_req.read()) |
---|
| 5514 | { |
---|
| 5515 | r_cc_send_fsm = CC_SEND_WRITE_BRDCAST_HEADER; |
---|
| 5516 | m_cpt_inval++; |
---|
| 5517 | } |
---|
| 5518 | break; |
---|
| 5519 | } |
---|
| 5520 | |
---|
| 5521 | case CC_SEND_XRAM_RSP_IDLE: |
---|
| 5522 | { |
---|
| 5523 | // CAS FSM has highest priority |
---|
| 5524 | if(m_cas_to_cc_send_inst_fifo.rok() || |
---|
| 5525 | r_cas_to_cc_send_multi_req.read()) |
---|
| 5526 | { |
---|
| 5527 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5528 | m_cpt_update++; |
---|
| 5529 | break; |
---|
| 5530 | } |
---|
| 5531 | |
---|
| 5532 | if(r_cas_to_cc_send_brdcast_req.read()) |
---|
| 5533 | { |
---|
| 5534 | r_cc_send_fsm = CC_SEND_CAS_BRDCAST_HEADER; |
---|
| 5535 | m_cpt_inval++; |
---|
| 5536 | break; |
---|
| 5537 | } |
---|
| 5538 | |
---|
| 5539 | if(r_cleanup_to_cc_send_req.read()) |
---|
| 5540 | { |
---|
| 5541 | r_cc_send_fsm = CC_SEND_CLEANUP_ACK; |
---|
| 5542 | break; |
---|
| 5543 | } |
---|
| 5544 | |
---|
| 5545 | if(m_write_to_cc_send_inst_fifo.rok() || |
---|
| 5546 | r_write_to_cc_send_multi_req.read()) |
---|
| 5547 | { |
---|
| 5548 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_HEADER; |
---|
| 5549 | m_cpt_update++; |
---|
| 5550 | break; |
---|
| 5551 | } |
---|
| 5552 | |
---|
| 5553 | if(r_write_to_cc_send_brdcast_req.read()) |
---|
| 5554 | { |
---|
| 5555 | r_cc_send_fsm = CC_SEND_WRITE_BRDCAST_HEADER; |
---|
| 5556 | m_cpt_inval++; |
---|
| 5557 | break; |
---|
| 5558 | } |
---|
| 5559 | |
---|
| 5560 | if(m_xram_rsp_to_cc_send_inst_fifo.rok() || |
---|
| 5561 | r_xram_rsp_to_cc_send_multi_req.read()) |
---|
| 5562 | { |
---|
| 5563 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_HEADER; |
---|
| 5564 | m_cpt_inval++; |
---|
| 5565 | break; |
---|
| 5566 | } |
---|
| 5567 | |
---|
| 5568 | if(r_xram_rsp_to_cc_send_brdcast_req.read()) |
---|
| 5569 | { |
---|
| 5570 | r_cc_send_fsm = CC_SEND_XRAM_RSP_BRDCAST_HEADER; |
---|
| 5571 | m_cpt_inval++; |
---|
| 5572 | } |
---|
| 5573 | |
---|
| 5574 | break; |
---|
| 5575 | } |
---|
| 5576 | |
---|
| 5577 | case CC_SEND_CAS_IDLE: |
---|
| 5578 | { |
---|
| 5579 | // CLEANUP FSM has highest priority |
---|
| 5580 | if(r_cleanup_to_cc_send_req.read()) |
---|
| 5581 | { |
---|
| 5582 | r_cc_send_fsm = CC_SEND_CLEANUP_ACK; |
---|
| 5583 | break; |
---|
| 5584 | } |
---|
| 5585 | |
---|
| 5586 | if(m_write_to_cc_send_inst_fifo.rok() || |
---|
| 5587 | r_write_to_cc_send_multi_req.read()) |
---|
| 5588 | { |
---|
| 5589 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_HEADER; |
---|
| 5590 | m_cpt_update++; |
---|
| 5591 | break; |
---|
| 5592 | } |
---|
| 5593 | |
---|
| 5594 | if(r_write_to_cc_send_brdcast_req.read()) |
---|
| 5595 | { |
---|
| 5596 | r_cc_send_fsm = CC_SEND_WRITE_BRDCAST_HEADER; |
---|
| 5597 | m_cpt_inval++; |
---|
| 5598 | break; |
---|
| 5599 | } |
---|
| 5600 | |
---|
| 5601 | if(m_xram_rsp_to_cc_send_inst_fifo.rok() || |
---|
| 5602 | r_xram_rsp_to_cc_send_multi_req.read()) |
---|
| 5603 | { |
---|
| 5604 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_HEADER; |
---|
| 5605 | m_cpt_inval++; |
---|
| 5606 | break; |
---|
| 5607 | } |
---|
| 5608 | |
---|
| 5609 | if(r_xram_rsp_to_cc_send_brdcast_req.read()) |
---|
| 5610 | { |
---|
| 5611 | r_cc_send_fsm = CC_SEND_XRAM_RSP_BRDCAST_HEADER; |
---|
| 5612 | m_cpt_inval++; |
---|
| 5613 | break; |
---|
| 5614 | } |
---|
| 5615 | |
---|
| 5616 | if(m_cas_to_cc_send_inst_fifo.rok() || |
---|
| 5617 | r_cas_to_cc_send_multi_req.read()) |
---|
| 5618 | { |
---|
| 5619 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5620 | m_cpt_update++; |
---|
| 5621 | break; |
---|
| 5622 | } |
---|
| 5623 | |
---|
| 5624 | if(r_cas_to_cc_send_brdcast_req.read()) |
---|
| 5625 | { |
---|
| 5626 | r_cc_send_fsm = CC_SEND_CAS_BRDCAST_HEADER; |
---|
| 5627 | m_cpt_inval++; |
---|
| 5628 | } |
---|
| 5629 | break; |
---|
| 5630 | } |
---|
| 5631 | |
---|
| 5632 | case CC_SEND_CLEANUP_IDLE: |
---|
| 5633 | { |
---|
| 5634 | // WRITE FSM has highest priority |
---|
| 5635 | if(m_write_to_cc_send_inst_fifo.rok() || |
---|
| 5636 | r_write_to_cc_send_multi_req.read()) |
---|
| 5637 | { |
---|
| 5638 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_HEADER; |
---|
| 5639 | m_cpt_update++; |
---|
| 5640 | break; |
---|
| 5641 | } |
---|
| 5642 | |
---|
| 5643 | if(r_write_to_cc_send_brdcast_req.read()) |
---|
| 5644 | { |
---|
| 5645 | r_cc_send_fsm = CC_SEND_WRITE_BRDCAST_HEADER; |
---|
| 5646 | m_cpt_inval++; |
---|
| 5647 | break; |
---|
| 5648 | } |
---|
| 5649 | |
---|
| 5650 | if(m_xram_rsp_to_cc_send_inst_fifo.rok() || |
---|
| 5651 | r_xram_rsp_to_cc_send_multi_req.read()) |
---|
| 5652 | { |
---|
| 5653 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_HEADER; |
---|
| 5654 | m_cpt_inval++; |
---|
| 5655 | break; |
---|
| 5656 | } |
---|
| 5657 | |
---|
| 5658 | if(r_xram_rsp_to_cc_send_brdcast_req.read()) |
---|
| 5659 | { |
---|
| 5660 | r_cc_send_fsm = CC_SEND_XRAM_RSP_BRDCAST_HEADER; |
---|
| 5661 | m_cpt_inval++; |
---|
| 5662 | break; |
---|
| 5663 | } |
---|
| 5664 | |
---|
| 5665 | if(m_cas_to_cc_send_inst_fifo.rok() || |
---|
| 5666 | r_cas_to_cc_send_multi_req.read()) |
---|
| 5667 | { |
---|
| 5668 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5669 | m_cpt_update++; |
---|
| 5670 | break; |
---|
| 5671 | } |
---|
| 5672 | |
---|
| 5673 | if(r_cas_to_cc_send_brdcast_req.read()) |
---|
| 5674 | { |
---|
| 5675 | r_cc_send_fsm = CC_SEND_CAS_BRDCAST_HEADER; |
---|
| 5676 | m_cpt_inval++; |
---|
| 5677 | break; |
---|
| 5678 | } |
---|
| 5679 | |
---|
| 5680 | if(r_cleanup_to_cc_send_req.read()) |
---|
| 5681 | { |
---|
| 5682 | r_cc_send_fsm = CC_SEND_CLEANUP_ACK; |
---|
| 5683 | } |
---|
| 5684 | |
---|
| 5685 | break; |
---|
| 5686 | } |
---|
| 5687 | |
---|
| 5688 | case CC_SEND_CLEANUP_ACK: |
---|
| 5689 | { |
---|
| 5690 | // send only flit for a cleanup acknowledgement (from CLEANUP FSM) |
---|
| 5691 | if(not p_dspin_out.read) break; |
---|
| 5692 | |
---|
| 5693 | r_cleanup_to_cc_send_req = false; |
---|
| 5694 | r_cc_send_fsm = CC_SEND_CLEANUP_IDLE; |
---|
| 5695 | |
---|
| 5696 | #if DEBUG_MEMC_CC_SEND |
---|
| 5697 | if(m_debug_cc_send_fsm) |
---|
| 5698 | { |
---|
| 5699 | std::cout |
---|
| 5700 | << " <MEMC " << name() |
---|
| 5701 | << ".CC_SEND_CLEANUP_ACK> Cleanup Acknowledgement for srcid " |
---|
| 5702 | << r_cleanup_to_cc_send_srcid.read() |
---|
| 5703 | << std::endl; |
---|
| 5704 | } |
---|
| 5705 | #endif |
---|
| 5706 | break; |
---|
| 5707 | } |
---|
| 5708 | |
---|
| 5709 | case CC_SEND_XRAM_RSP_INVAL_HEADER: |
---|
| 5710 | { |
---|
| 5711 | // send first flit multi-inval (from XRAM_RSP FSM) |
---|
| 5712 | if(m_xram_rsp_to_cc_send_inst_fifo.rok()) |
---|
| 5713 | { |
---|
| 5714 | if(not p_dspin_out.read) break; |
---|
| 5715 | |
---|
| 5716 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_NLINE; |
---|
| 5717 | break; |
---|
| 5718 | } |
---|
| 5719 | |
---|
| 5720 | if(r_xram_rsp_to_cc_send_multi_req.read()) |
---|
| 5721 | { |
---|
| 5722 | r_xram_rsp_to_cc_send_multi_req = false; |
---|
| 5723 | } |
---|
| 5724 | |
---|
| 5725 | r_cc_send_fsm = CC_SEND_XRAM_RSP_IDLE; |
---|
| 5726 | break; |
---|
| 5727 | } |
---|
| 5728 | |
---|
| 5729 | case CC_SEND_XRAM_RSP_INVAL_NLINE: |
---|
| 5730 | { |
---|
| 5731 | // send second flit multi-inval (from XRAM_RSP FSM) |
---|
| 5732 | if(not p_dspin_out.read) break; |
---|
| 5733 | |
---|
| 5734 | m_cpt_inval_mult++; |
---|
| 5735 | |
---|
[353] | 5736 | xram_rsp_to_cc_send_fifo_get = true; |
---|
| 5737 | r_cc_send_fsm = CC_SEND_XRAM_RSP_INVAL_HEADER; |
---|
[331] | 5738 | |
---|
| 5739 | #if DEBUG_MEMC_CC_SEND |
---|
| 5740 | if(m_debug_cc_send_fsm) |
---|
| 5741 | { |
---|
| 5742 | std::cout |
---|
| 5743 | << " <MEMC " << name() |
---|
| 5744 | << ".CC_SEND_XRAM_RSP_INVAL_NLINE> Broadcast-Inval for line " |
---|
| 5745 | << r_xram_rsp_to_cc_send_nline.read() |
---|
| 5746 | << std::endl; |
---|
| 5747 | } |
---|
| 5748 | #endif |
---|
| 5749 | break; |
---|
| 5750 | } |
---|
| 5751 | |
---|
| 5752 | case CC_SEND_XRAM_RSP_BRDCAST_HEADER: |
---|
| 5753 | { |
---|
| 5754 | // send first flit broadcast-inval (from XRAM_RSP FSM) |
---|
| 5755 | if(not p_dspin_out.read) break; |
---|
| 5756 | |
---|
| 5757 | r_cc_send_fsm = CC_SEND_XRAM_RSP_BRDCAST_NLINE; |
---|
| 5758 | break; |
---|
| 5759 | } |
---|
| 5760 | |
---|
| 5761 | case CC_SEND_XRAM_RSP_BRDCAST_NLINE: |
---|
| 5762 | { |
---|
| 5763 | // send second flit broadcast-inval (from XRAM_RSP FSM) |
---|
| 5764 | if(not p_dspin_out.read) break; |
---|
| 5765 | |
---|
| 5766 | m_cpt_inval_brdcast++; |
---|
| 5767 | |
---|
| 5768 | r_xram_rsp_to_cc_send_brdcast_req = false; |
---|
| 5769 | r_cc_send_fsm = CC_SEND_XRAM_RSP_IDLE; |
---|
| 5770 | |
---|
| 5771 | #if DEBUG_MEMC_CC_SEND |
---|
| 5772 | if(m_debug_cc_send_fsm) |
---|
| 5773 | { |
---|
| 5774 | std::cout |
---|
| 5775 | << " <MEMC " << name() |
---|
| 5776 | << ".CC_SEND_XRAM_RSP_BRDCAST_NLINE> Broadcast-Inval for line " |
---|
| 5777 | << r_xram_rsp_to_cc_send_nline.read() |
---|
| 5778 | << std::endl; |
---|
| 5779 | } |
---|
| 5780 | #endif |
---|
| 5781 | break; |
---|
| 5782 | } |
---|
| 5783 | |
---|
| 5784 | case CC_SEND_WRITE_BRDCAST_HEADER: |
---|
| 5785 | { |
---|
| 5786 | // send first flit broadcast-inval (from WRITE FSM) |
---|
| 5787 | if(not p_dspin_out.read) break; |
---|
| 5788 | |
---|
| 5789 | r_cc_send_fsm = CC_SEND_WRITE_BRDCAST_NLINE; |
---|
| 5790 | break; |
---|
| 5791 | } |
---|
| 5792 | |
---|
| 5793 | case CC_SEND_WRITE_BRDCAST_NLINE: |
---|
| 5794 | { |
---|
| 5795 | // send second flit broadcast-inval (from WRITE FSM) |
---|
| 5796 | if(not p_dspin_out.read) break; |
---|
| 5797 | |
---|
| 5798 | m_cpt_inval_brdcast++; |
---|
| 5799 | |
---|
| 5800 | r_write_to_cc_send_brdcast_req = false; |
---|
| 5801 | r_cc_send_fsm = CC_SEND_WRITE_IDLE; |
---|
| 5802 | |
---|
| 5803 | #if DEBUG_MEMC_CC_SEND |
---|
| 5804 | if(m_debug_cc_send_fsm) |
---|
| 5805 | { |
---|
| 5806 | std::cout |
---|
| 5807 | << " <MEMC " << name() |
---|
| 5808 | << ".CC_SEND_WRITE_BRDCAST_NLINE> Broadcast-Inval for line " |
---|
| 5809 | << r_write_to_cc_send_nline.read() |
---|
| 5810 | << std::endl; |
---|
| 5811 | } |
---|
| 5812 | #endif |
---|
| 5813 | break; |
---|
| 5814 | } |
---|
| 5815 | |
---|
| 5816 | case CC_SEND_WRITE_UPDT_HEADER: |
---|
| 5817 | { |
---|
| 5818 | // send first flit for a multi-update (from WRITE FSM) |
---|
| 5819 | if(m_write_to_cc_send_inst_fifo.rok()) |
---|
| 5820 | { |
---|
| 5821 | if(not p_dspin_out.read) break; |
---|
| 5822 | |
---|
| 5823 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_NLINE; |
---|
| 5824 | break; |
---|
| 5825 | } |
---|
| 5826 | |
---|
| 5827 | if(r_write_to_cc_send_multi_req.read()) |
---|
| 5828 | { |
---|
| 5829 | r_write_to_cc_send_multi_req = false; |
---|
| 5830 | } |
---|
| 5831 | |
---|
| 5832 | r_cc_send_fsm = CC_SEND_WRITE_IDLE; |
---|
| 5833 | break; |
---|
| 5834 | } |
---|
| 5835 | |
---|
| 5836 | case CC_SEND_WRITE_UPDT_NLINE: |
---|
| 5837 | { |
---|
| 5838 | // send second flit for a multi-update (from WRITE FSM) |
---|
| 5839 | if(not p_dspin_out.read) break; |
---|
| 5840 | |
---|
| 5841 | m_cpt_update_mult++; |
---|
| 5842 | |
---|
| 5843 | r_cc_send_cpt = 0; |
---|
| 5844 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_DATA; |
---|
| 5845 | |
---|
| 5846 | #if DEBUG_MEMC_CC_SEND |
---|
| 5847 | if(m_debug_cc_send_fsm) |
---|
| 5848 | { |
---|
| 5849 | std::cout |
---|
| 5850 | << " <MEMC " << name() |
---|
| 5851 | << ".CC_SEND_WRITE_UPDT_NLINE> Multicast-Update for line " |
---|
| 5852 | << r_write_to_cc_send_nline.read() |
---|
| 5853 | << std::endl; |
---|
| 5854 | } |
---|
| 5855 | #endif |
---|
| 5856 | break; |
---|
| 5857 | } |
---|
| 5858 | |
---|
| 5859 | case CC_SEND_WRITE_UPDT_DATA: |
---|
| 5860 | { |
---|
| 5861 | // send N data flits for a multi-update (from WRITE FSM) |
---|
| 5862 | if(not p_dspin_out.read) break; |
---|
| 5863 | |
---|
| 5864 | if(r_cc_send_cpt.read() == (r_write_to_cc_send_count.read()-1)) |
---|
| 5865 | { |
---|
| 5866 | write_to_cc_send_fifo_get = true; |
---|
| 5867 | r_cc_send_fsm = CC_SEND_WRITE_UPDT_HEADER; |
---|
| 5868 | break; |
---|
| 5869 | } |
---|
| 5870 | |
---|
| 5871 | r_cc_send_cpt = r_cc_send_cpt.read() + 1; |
---|
| 5872 | break; |
---|
| 5873 | } |
---|
| 5874 | |
---|
| 5875 | case CC_SEND_CAS_BRDCAST_HEADER: |
---|
| 5876 | { |
---|
| 5877 | // send first flit for a broadcast-inval (from CAS FSM) |
---|
| 5878 | if(not p_dspin_out.read) break; |
---|
| 5879 | |
---|
| 5880 | r_cc_send_fsm = CC_SEND_CAS_BRDCAST_NLINE; |
---|
| 5881 | break; |
---|
| 5882 | } |
---|
| 5883 | |
---|
| 5884 | case CC_SEND_CAS_BRDCAST_NLINE: |
---|
| 5885 | { |
---|
| 5886 | // send second flit broadcast-inval (from CAS FSM) |
---|
| 5887 | if(not p_dspin_out.read) break; |
---|
| 5888 | |
---|
| 5889 | m_cpt_inval_brdcast++; |
---|
| 5890 | |
---|
| 5891 | r_cas_to_cc_send_brdcast_req = false; |
---|
| 5892 | r_cc_send_fsm = CC_SEND_CAS_IDLE; |
---|
| 5893 | |
---|
| 5894 | #if DEBUG_MEMC_CC_SEND |
---|
| 5895 | if(m_debug_cc_send_fsm) |
---|
| 5896 | { |
---|
| 5897 | std::cout |
---|
| 5898 | << " <MEMC " << name() |
---|
| 5899 | << ".CC_SEND_CAS_BRDCAST_NLINE> Broadcast-Inval for line " |
---|
| 5900 | << r_cas_to_cc_send_nline.read() |
---|
| 5901 | << std::endl; |
---|
| 5902 | } |
---|
| 5903 | #endif |
---|
| 5904 | break; |
---|
| 5905 | } |
---|
| 5906 | |
---|
| 5907 | case CC_SEND_CAS_UPDT_HEADER: |
---|
| 5908 | { |
---|
| 5909 | // send first flit for a multi-update (from CAS FSM) |
---|
| 5910 | if(m_cas_to_cc_send_inst_fifo.rok()) |
---|
| 5911 | { |
---|
| 5912 | if(not p_dspin_out.read) break; |
---|
| 5913 | |
---|
| 5914 | r_cc_send_fsm = CC_SEND_CAS_UPDT_NLINE; |
---|
| 5915 | break; |
---|
| 5916 | } |
---|
| 5917 | |
---|
| 5918 | // no more packets to send for the multi-update |
---|
| 5919 | if(r_cas_to_cc_send_multi_req.read()) |
---|
| 5920 | { |
---|
| 5921 | r_cas_to_cc_send_multi_req = false; |
---|
| 5922 | } |
---|
| 5923 | |
---|
| 5924 | r_cc_send_fsm = CC_SEND_CAS_IDLE; |
---|
| 5925 | break; |
---|
| 5926 | } |
---|
| 5927 | |
---|
| 5928 | case CC_SEND_CAS_UPDT_NLINE: |
---|
| 5929 | { |
---|
| 5930 | // send second flit for a multi-update (from CAS FSM) |
---|
| 5931 | if(not p_dspin_out.read) break; |
---|
| 5932 | |
---|
| 5933 | m_cpt_update_mult++; |
---|
| 5934 | |
---|
| 5935 | r_cc_send_cpt = 0; |
---|
| 5936 | r_cc_send_fsm = CC_SEND_CAS_UPDT_DATA; |
---|
| 5937 | |
---|
| 5938 | #if DEBUG_MEMC_CC_SEND |
---|
| 5939 | if(m_debug_cc_send_fsm) |
---|
| 5940 | { |
---|
| 5941 | std::cout |
---|
| 5942 | << " <MEMC " << name() |
---|
| 5943 | << ".CC_SEND_CAS_UPDT_NLINE> Multicast-Update for line " |
---|
| 5944 | << r_cas_to_cc_send_nline.read() |
---|
| 5945 | << std::endl; |
---|
| 5946 | } |
---|
| 5947 | #endif |
---|
| 5948 | break; |
---|
| 5949 | } |
---|
| 5950 | |
---|
| 5951 | case CC_SEND_CAS_UPDT_DATA: |
---|
| 5952 | { |
---|
| 5953 | // send first data for a multi-update (from CAS FSM) |
---|
| 5954 | if(not p_dspin_out.read) break; |
---|
| 5955 | |
---|
| 5956 | if(r_cas_to_cc_send_is_long.read()) |
---|
| 5957 | { |
---|
| 5958 | r_cc_send_fsm = CC_SEND_CAS_UPDT_DATA_HIGH; |
---|
| 5959 | break; |
---|
| 5960 | } |
---|
| 5961 | |
---|
| 5962 | cas_to_cc_send_fifo_get = true; |
---|
| 5963 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5964 | break; |
---|
| 5965 | } |
---|
| 5966 | |
---|
| 5967 | case CC_SEND_CAS_UPDT_DATA_HIGH: |
---|
| 5968 | { |
---|
| 5969 | // send second data for a multi-update (from CAS FSM) |
---|
| 5970 | if(not p_dspin_out.read) break; |
---|
| 5971 | |
---|
| 5972 | cas_to_cc_send_fifo_get = true; |
---|
| 5973 | r_cc_send_fsm = CC_SEND_CAS_UPDT_HEADER; |
---|
| 5974 | break; |
---|
| 5975 | } |
---|
| 5976 | } |
---|
| 5977 | // end switch r_cc_send_fsm |
---|
| 5978 | |
---|
| 5979 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 5980 | // CC_RECEIVE FSM |
---|
| 5981 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 5982 | // The CC_RECEIVE fsm controls the DSPIN target port on the coherence |
---|
| 5983 | // network. |
---|
| 5984 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 5985 | |
---|
| 5986 | switch(r_cc_receive_fsm.read()) |
---|
| 5987 | { |
---|
| 5988 | case CC_RECEIVE_IDLE: |
---|
| 5989 | { |
---|
| 5990 | if(not p_dspin_in.write) break; |
---|
| 5991 | |
---|
| 5992 | uint8_t type = |
---|
| 5993 | DspinDhccpParam::dspin_get( |
---|
| 5994 | p_dspin_in.data.read(), |
---|
| 5995 | DspinDhccpParam::FROM_L1_TYPE); |
---|
| 5996 | |
---|
| 5997 | if((type == DspinDhccpParam::TYPE_CLEANUP_DATA) || |
---|
| 5998 | (type == DspinDhccpParam::TYPE_CLEANUP_INST) ) |
---|
| 5999 | { |
---|
| 6000 | r_cc_receive_fsm = CC_RECEIVE_CLEANUP; |
---|
| 6001 | break; |
---|
| 6002 | } |
---|
| 6003 | |
---|
| 6004 | if(type == DspinDhccpParam::TYPE_MULTI_ACK) |
---|
| 6005 | { |
---|
| 6006 | r_cc_receive_fsm = CC_RECEIVE_MULTI_ACK; |
---|
| 6007 | break; |
---|
| 6008 | } |
---|
| 6009 | |
---|
| 6010 | assert( |
---|
| 6011 | false && |
---|
| 6012 | "VCI_MEM_CACHE ERROR: Incorrect type in coherence request from " |
---|
| 6013 | "L1 Cache"); |
---|
| 6014 | |
---|
| 6015 | break; |
---|
| 6016 | } |
---|
| 6017 | case CC_RECEIVE_CLEANUP: |
---|
| 6018 | { |
---|
| 6019 | // wait for a valid cleanup flit |
---|
| 6020 | // wait for a WOK in the CC_RECEIVE to CLEANUP fifo |
---|
| 6021 | if(not p_dspin_in.write or not m_cc_receive_to_cleanup_fifo.wok()) break; |
---|
| 6022 | |
---|
| 6023 | bool eop = ( |
---|
| 6024 | DspinDhccpParam::dspin_get( |
---|
| 6025 | p_dspin_in.data.read(), |
---|
| 6026 | DspinDhccpParam::FROM_L1_EOP) |
---|
| 6027 | == 0x1); |
---|
| 6028 | |
---|
| 6029 | cc_receive_to_cleanup_fifo_put = true; |
---|
| 6030 | if(eop) |
---|
| 6031 | { |
---|
| 6032 | r_cc_receive_fsm = CC_RECEIVE_IDLE; |
---|
| 6033 | } |
---|
| 6034 | |
---|
| 6035 | break; |
---|
| 6036 | } |
---|
| 6037 | case CC_RECEIVE_MULTI_ACK: |
---|
| 6038 | { |
---|
| 6039 | // wait for a valid multicast acknowledgement flit |
---|
| 6040 | // wait for a WOK in the CC_RECEIVE to MULTI_ACK fifo |
---|
| 6041 | if(not p_dspin_in.write or not m_cc_receive_to_multi_ack_fifo.wok()) break; |
---|
| 6042 | |
---|
| 6043 | bool eop = ( |
---|
| 6044 | DspinDhccpParam::dspin_get( |
---|
| 6045 | p_dspin_in.data.read(), |
---|
| 6046 | DspinDhccpParam::FROM_L1_EOP) |
---|
| 6047 | == 0x1); |
---|
| 6048 | |
---|
| 6049 | cc_receive_to_multi_ack_fifo_put = true; |
---|
| 6050 | if(eop) |
---|
| 6051 | { |
---|
| 6052 | r_cc_receive_fsm = CC_RECEIVE_IDLE; |
---|
| 6053 | } |
---|
| 6054 | |
---|
| 6055 | break; |
---|
| 6056 | } |
---|
| 6057 | default: |
---|
| 6058 | { |
---|
| 6059 | assert( |
---|
| 6060 | false && |
---|
| 6061 | "VCI_MEM_CACHE ERROR: Invalid state in CC_RECEIVE FSM"); |
---|
| 6062 | } |
---|
| 6063 | } |
---|
| 6064 | ///////////////////////////////////////////////////////////////////// |
---|
| 6065 | // TGT_RSP FSM |
---|
| 6066 | ///////////////////////////////////////////////////////////////////// |
---|
| 6067 | // The TGT_RSP fsm sends the responses on the VCI target port |
---|
| 6068 | // with a round robin priority between six requests : |
---|
| 6069 | // - r_read_to_tgt_rsp_req |
---|
| 6070 | // - r_write_to_tgt_rsp_req |
---|
| 6071 | // - r_cas_to_tgt_rsp_req |
---|
| 6072 | // - r_cleanup_to_tgt_rsp_req |
---|
| 6073 | // - r_xram_rsp_to_tgt_rsp_req |
---|
| 6074 | // - r_multi_ack_to_tgt_rsp_req |
---|
| 6075 | // The ordering is : read > write > cas > xram > init > cleanup |
---|
| 6076 | ///////////////////////////////////////////////////////////////////// |
---|
| 6077 | |
---|
| 6078 | switch(r_tgt_rsp_fsm.read()) |
---|
| 6079 | { |
---|
| 6080 | case TGT_RSP_READ_IDLE: |
---|
| 6081 | { |
---|
| 6082 | // write requests have the highest priority |
---|
| 6083 | if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6084 | else if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS ; |
---|
| 6085 | else if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6086 | { |
---|
| 6087 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6088 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6089 | } |
---|
| 6090 | else if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT ; |
---|
| 6091 | else if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6092 | else if(r_read_to_tgt_rsp_req) |
---|
| 6093 | { |
---|
| 6094 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6095 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6096 | } |
---|
| 6097 | break; |
---|
| 6098 | } |
---|
| 6099 | //////////////////////// |
---|
| 6100 | case TGT_RSP_WRITE_IDLE: // cas requests have the highest priority |
---|
| 6101 | { |
---|
| 6102 | if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS; |
---|
| 6103 | else if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6104 | { |
---|
| 6105 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6106 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6107 | } |
---|
| 6108 | else if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT ; |
---|
| 6109 | else if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6110 | else if(r_read_to_tgt_rsp_req) |
---|
| 6111 | { |
---|
| 6112 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6113 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6114 | } |
---|
| 6115 | |
---|
| 6116 | else if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6117 | break; |
---|
| 6118 | } |
---|
| 6119 | /////////////////////// |
---|
| 6120 | case TGT_RSP_CAS_IDLE: // xram_rsp requests have the highest priority |
---|
| 6121 | { |
---|
| 6122 | if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6123 | { |
---|
| 6124 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6125 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6126 | } |
---|
| 6127 | else if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT ; |
---|
| 6128 | else if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6129 | else if(r_read_to_tgt_rsp_req) |
---|
| 6130 | { |
---|
| 6131 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6132 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6133 | } |
---|
| 6134 | else if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6135 | else if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS ; |
---|
| 6136 | break; |
---|
| 6137 | } |
---|
| 6138 | /////////////////////// |
---|
| 6139 | case TGT_RSP_XRAM_IDLE: // init requests have the highest priority |
---|
| 6140 | { |
---|
| 6141 | |
---|
| 6142 | if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT ; |
---|
| 6143 | else if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6144 | else if(r_read_to_tgt_rsp_req) |
---|
| 6145 | { |
---|
| 6146 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6147 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6148 | } |
---|
| 6149 | else if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6150 | else if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS ; |
---|
| 6151 | else if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6152 | { |
---|
| 6153 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6154 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6155 | } |
---|
| 6156 | break; |
---|
| 6157 | } |
---|
| 6158 | /////////////////////// |
---|
| 6159 | case TGT_RSP_INIT_IDLE: // cleanup requests have the highest priority |
---|
| 6160 | { |
---|
| 6161 | if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6162 | else if(r_read_to_tgt_rsp_req) |
---|
| 6163 | { |
---|
| 6164 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6165 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6166 | } |
---|
| 6167 | else if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6168 | else if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS ; |
---|
| 6169 | else if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6170 | { |
---|
| 6171 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6172 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6173 | } |
---|
| 6174 | else if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT; |
---|
| 6175 | break; |
---|
| 6176 | } |
---|
| 6177 | /////////////////////// |
---|
| 6178 | case TGT_RSP_CLEANUP_IDLE: // read requests have the highest priority |
---|
| 6179 | { |
---|
| 6180 | if(r_read_to_tgt_rsp_req) |
---|
| 6181 | { |
---|
| 6182 | r_tgt_rsp_fsm = TGT_RSP_READ; |
---|
| 6183 | r_tgt_rsp_cpt = r_read_to_tgt_rsp_word.read(); |
---|
| 6184 | } |
---|
| 6185 | else if(r_write_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_WRITE; |
---|
| 6186 | else if(r_cas_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CAS ; |
---|
| 6187 | else if(r_xram_rsp_to_tgt_rsp_req) |
---|
| 6188 | { |
---|
| 6189 | r_tgt_rsp_fsm = TGT_RSP_XRAM; |
---|
| 6190 | r_tgt_rsp_cpt = r_xram_rsp_to_tgt_rsp_word.read(); |
---|
| 6191 | } |
---|
| 6192 | else if(r_multi_ack_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_INIT ; |
---|
| 6193 | else if(r_cleanup_to_tgt_rsp_req) r_tgt_rsp_fsm = TGT_RSP_CLEANUP; |
---|
| 6194 | break; |
---|
| 6195 | } |
---|
| 6196 | ////////////////// |
---|
| 6197 | case TGT_RSP_READ: // send the response to a read |
---|
| 6198 | { |
---|
[362] | 6199 | if ( p_vci_tgt.rspack ) |
---|
[331] | 6200 | { |
---|
| 6201 | |
---|
| 6202 | #if DEBUG_MEMC_TGT_RSP |
---|
[362] | 6203 | if( m_debug_tgt_rsp_fsm ) |
---|
| 6204 | { |
---|
| 6205 | std::cout |
---|
| 6206 | << " <MEMC " << name() << ".TGT_RSP_READ> Read response" |
---|
| 6207 | << " / rsrcid = " << std::dec << r_read_to_tgt_rsp_srcid.read() |
---|
| 6208 | << " / rtrdid = " << r_read_to_tgt_rsp_trdid.read() |
---|
| 6209 | << " / rpktid = " << r_read_to_tgt_rsp_pktid.read() |
---|
| 6210 | << " / rdata = " << std::hex << r_read_to_tgt_rsp_data[r_tgt_rsp_cpt.read()].read() |
---|
| 6211 | << " / cpt = " << std::dec << r_tgt_rsp_cpt.read() << std::endl; |
---|
| 6212 | } |
---|
[331] | 6213 | #endif |
---|
[362] | 6214 | |
---|
| 6215 | uint32_t last_word_idx = r_read_to_tgt_rsp_word.read() + r_read_to_tgt_rsp_length.read() - 1; |
---|
| 6216 | bool is_last_word = (r_tgt_rsp_cpt.read() == last_word_idx); |
---|
| 6217 | bool is_ll = ((r_read_to_tgt_rsp_pktid.read() & 0x7) == TYPE_LL); |
---|
| 6218 | |
---|
| 6219 | if ( (is_last_word and not is_ll) or (r_tgt_rsp_key_sent.read() and is_ll)) |
---|
[331] | 6220 | { |
---|
[362] | 6221 | // Last word in case of READ or second flit in case if LL |
---|
| 6222 | r_tgt_rsp_key_sent = false; |
---|
[331] | 6223 | r_read_to_tgt_rsp_req = false; |
---|
[362] | 6224 | r_tgt_rsp_fsm = TGT_RSP_READ_IDLE; |
---|
[331] | 6225 | } |
---|
| 6226 | else |
---|
| 6227 | { |
---|
[362] | 6228 | if (is_ll) |
---|
| 6229 | { |
---|
| 6230 | r_tgt_rsp_key_sent = true; // Send second flit of ll |
---|
| 6231 | } |
---|
| 6232 | else |
---|
| 6233 | { |
---|
| 6234 | r_tgt_rsp_cpt = r_tgt_rsp_cpt.read() + 1; // Send next word of read |
---|
| 6235 | } |
---|
[331] | 6236 | } |
---|
| 6237 | } |
---|
| 6238 | break; |
---|
| 6239 | } |
---|
[362] | 6240 | ////////////////// |
---|
[331] | 6241 | case TGT_RSP_WRITE: // send the write acknowledge |
---|
| 6242 | { |
---|
| 6243 | if(p_vci_tgt.rspack) |
---|
| 6244 | { |
---|
| 6245 | |
---|
| 6246 | #if DEBUG_MEMC_TGT_RSP |
---|
| 6247 | if(m_debug_tgt_rsp_fsm) |
---|
| 6248 | { |
---|
| 6249 | std::cout << " <MEMC " << name() << ".TGT_RSP_WRITE> Write response" |
---|
| 6250 | << " / rsrcid = " << std::dec << r_write_to_tgt_rsp_srcid.read() |
---|
| 6251 | << " / rtrdid = " << r_write_to_tgt_rsp_trdid.read() |
---|
| 6252 | << " / rpktid = " << r_write_to_tgt_rsp_pktid.read() << std::endl; |
---|
| 6253 | } |
---|
| 6254 | #endif |
---|
| 6255 | r_tgt_rsp_fsm = TGT_RSP_WRITE_IDLE; |
---|
| 6256 | r_write_to_tgt_rsp_req = false; |
---|
| 6257 | } |
---|
| 6258 | break; |
---|
| 6259 | } |
---|
| 6260 | /////////////////// |
---|
| 6261 | case TGT_RSP_CLEANUP: // pas clair pour moi (AG) |
---|
| 6262 | { |
---|
| 6263 | if(p_vci_tgt.rspack) |
---|
| 6264 | { |
---|
| 6265 | |
---|
| 6266 | #if DEBUG_MEMC_TGT_RSP |
---|
| 6267 | if(m_debug_tgt_rsp_fsm) |
---|
| 6268 | { |
---|
| 6269 | std::cout << " <MEMC " << name() << ".TGT_RSP_CLEANUP> Cleanup response" |
---|
| 6270 | << " / rsrcid = " << std::dec << r_cleanup_to_tgt_rsp_srcid.read() |
---|
| 6271 | << " / rtrdid = " << r_cleanup_to_tgt_rsp_trdid.read() |
---|
| 6272 | << " / rpktid = " << r_cleanup_to_tgt_rsp_pktid.read() << std::endl; |
---|
| 6273 | } |
---|
| 6274 | #endif |
---|
| 6275 | r_tgt_rsp_fsm = TGT_RSP_CLEANUP_IDLE; |
---|
| 6276 | r_cleanup_to_tgt_rsp_req = false; |
---|
| 6277 | } |
---|
| 6278 | break; |
---|
| 6279 | } |
---|
| 6280 | ////////////////// |
---|
| 6281 | case TGT_RSP_CAS: // send one atomic word response |
---|
| 6282 | { |
---|
| 6283 | if(p_vci_tgt.rspack) |
---|
| 6284 | { |
---|
| 6285 | |
---|
| 6286 | #if DEBUG_MEMC_TGT_RSP |
---|
| 6287 | if(m_debug_tgt_rsp_fsm) |
---|
| 6288 | { |
---|
| 6289 | std::cout << " <MEMC " << name() << ".TGT_RSP_CAS> CAS response" |
---|
| 6290 | << " / rsrcid = " << std::dec << r_cas_to_tgt_rsp_srcid.read() |
---|
| 6291 | << " / rtrdid = " << r_cas_to_tgt_rsp_trdid.read() |
---|
| 6292 | << " / rpktid = " << r_cas_to_tgt_rsp_pktid.read() << std::endl; |
---|
| 6293 | } |
---|
| 6294 | #endif |
---|
| 6295 | r_tgt_rsp_fsm = TGT_RSP_CAS_IDLE; |
---|
| 6296 | r_cas_to_tgt_rsp_req = false; |
---|
| 6297 | } |
---|
| 6298 | break; |
---|
| 6299 | } |
---|
| 6300 | |
---|
| 6301 | /////////////////////// |
---|
| 6302 | case TGT_RSP_XRAM: // send the response after XRAM access |
---|
| 6303 | { |
---|
[362] | 6304 | if ( p_vci_tgt.rspack ) |
---|
[331] | 6305 | { |
---|
| 6306 | |
---|
| 6307 | #if DEBUG_MEMC_TGT_RSP |
---|
[362] | 6308 | if( m_debug_tgt_rsp_fsm ) |
---|
| 6309 | { |
---|
| 6310 | std::cout |
---|
| 6311 | << " <MEMC " << name() << ".TGT_RSP_XRAM> Response following XRAM access" |
---|
| 6312 | << " / rsrcid = " << std::dec << r_xram_rsp_to_tgt_rsp_srcid.read() |
---|
| 6313 | << " / rtrdid = " << r_xram_rsp_to_tgt_rsp_trdid.read() |
---|
| 6314 | << " / rpktid = " << r_xram_rsp_to_tgt_rsp_pktid.read() |
---|
| 6315 | << " / rdata = " << std::hex << r_xram_rsp_to_tgt_rsp_data[r_tgt_rsp_cpt.read()].read() |
---|
| 6316 | << " / cpt = " << std::dec << r_tgt_rsp_cpt.read() << std::endl; |
---|
| 6317 | } |
---|
[331] | 6318 | #endif |
---|
[362] | 6319 | uint32_t last_word_idx = r_xram_rsp_to_tgt_rsp_word.read() + r_xram_rsp_to_tgt_rsp_length.read() - 1; |
---|
| 6320 | bool is_last_word = (r_tgt_rsp_cpt.read() == last_word_idx); |
---|
| 6321 | bool is_ll = ((r_xram_rsp_to_tgt_rsp_pktid.read() & 0x7) == TYPE_LL); |
---|
| 6322 | bool is_error = r_xram_rsp_to_tgt_rsp_rerror.read(); |
---|
| 6323 | |
---|
| 6324 | if (((is_last_word or is_error) and not is_ll) or |
---|
| 6325 | (r_tgt_rsp_key_sent.read() and is_ll)) |
---|
[331] | 6326 | { |
---|
[362] | 6327 | // Last word sent in case of READ or second flit sent in case if LL |
---|
| 6328 | r_tgt_rsp_key_sent = false; |
---|
[331] | 6329 | r_xram_rsp_to_tgt_rsp_req = false; |
---|
[362] | 6330 | r_tgt_rsp_fsm = TGT_RSP_XRAM_IDLE; |
---|
[331] | 6331 | } |
---|
| 6332 | else |
---|
| 6333 | { |
---|
[362] | 6334 | if (is_ll) |
---|
| 6335 | { |
---|
| 6336 | r_tgt_rsp_key_sent = true; // Send second flit of ll |
---|
| 6337 | } |
---|
| 6338 | else |
---|
| 6339 | { |
---|
| 6340 | r_tgt_rsp_cpt = r_tgt_rsp_cpt.read() + 1; // Send next word of read |
---|
| 6341 | } |
---|
[331] | 6342 | } |
---|
| 6343 | } |
---|
| 6344 | break; |
---|
| 6345 | } |
---|
| 6346 | ////////////////// |
---|
| 6347 | case TGT_RSP_INIT: // send the write response after coherence transaction |
---|
| 6348 | { |
---|
| 6349 | if(p_vci_tgt.rspack) |
---|
| 6350 | { |
---|
| 6351 | |
---|
| 6352 | #if DEBUG_MEMC_TGT_RSP |
---|
| 6353 | if(m_debug_tgt_rsp_fsm) |
---|
| 6354 | { |
---|
| 6355 | std::cout << " <MEMC " << name() << ".TGT_RSP_INIT> Write response after coherence transaction" |
---|
| 6356 | << " / rsrcid = " << std::dec << r_multi_ack_to_tgt_rsp_srcid.read() |
---|
| 6357 | << " / rtrdid = " << r_multi_ack_to_tgt_rsp_trdid.read() |
---|
| 6358 | << " / rpktid = " << r_multi_ack_to_tgt_rsp_pktid.read() << std::endl; |
---|
| 6359 | } |
---|
| 6360 | #endif |
---|
| 6361 | r_tgt_rsp_fsm = TGT_RSP_INIT_IDLE; |
---|
| 6362 | r_multi_ack_to_tgt_rsp_req = false; |
---|
| 6363 | } |
---|
| 6364 | break; |
---|
| 6365 | } |
---|
| 6366 | } // end switch tgt_rsp_fsm |
---|
| 6367 | |
---|
| 6368 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6369 | // ALLOC_UPT FSM |
---|
| 6370 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6371 | // The ALLOC_UPT FSM allocates the access to the Update/Inval Table (UPT). |
---|
| 6372 | // with a round robin priority between three FSMs : MULTI_ACK > WRITE > XRAM_RSP > CLEANUP |
---|
| 6373 | // - The WRITE FSM initiates update transactions and sets new entry in UPT. |
---|
| 6374 | // - The XRAM_RSP FSM initiates inval transactions and sets new entry in UPT. |
---|
| 6375 | // - The MULTI_ACK FSM complete those trasactions and erase the UPT entry. |
---|
| 6376 | // - The CLEANUP FSM decrement an entry in UPT. |
---|
| 6377 | // The resource is always allocated. |
---|
| 6378 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 6379 | |
---|
| 6380 | switch(r_alloc_upt_fsm.read()) |
---|
| 6381 | { |
---|
| 6382 | |
---|
| 6383 | //////////////////////// |
---|
| 6384 | case ALLOC_UPT_MULTI_ACK: |
---|
| 6385 | if((r_multi_ack_fsm.read() != MULTI_ACK_UPT_LOCK) && |
---|
| 6386 | (r_multi_ack_fsm.read() != MULTI_ACK_UPT_CLEAR)) |
---|
| 6387 | { |
---|
| 6388 | if((r_write_fsm.read() == WRITE_UPT_LOCK) || |
---|
| 6389 | (r_write_fsm.read() == WRITE_BC_UPT_LOCK)) |
---|
| 6390 | r_alloc_upt_fsm = ALLOC_UPT_WRITE; |
---|
| 6391 | |
---|
| 6392 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_INVAL_LOCK) |
---|
| 6393 | r_alloc_upt_fsm = ALLOC_UPT_XRAM_RSP; |
---|
| 6394 | |
---|
| 6395 | else if(r_cleanup_fsm.read() == CLEANUP_UPT_LOCK) |
---|
| 6396 | r_alloc_upt_fsm = ALLOC_UPT_CLEANUP; |
---|
| 6397 | |
---|
| 6398 | else if((r_cas_fsm.read() == CAS_UPT_LOCK) || |
---|
| 6399 | (r_cas_fsm.read() == CAS_BC_UPT_LOCK)) |
---|
| 6400 | r_alloc_upt_fsm = ALLOC_UPT_CAS; |
---|
| 6401 | } |
---|
| 6402 | break; |
---|
| 6403 | |
---|
| 6404 | ///////////////////// |
---|
| 6405 | case ALLOC_UPT_WRITE: |
---|
| 6406 | if((r_write_fsm.read() != WRITE_UPT_LOCK) && |
---|
| 6407 | (r_write_fsm.read() != WRITE_BC_UPT_LOCK)) |
---|
| 6408 | { |
---|
| 6409 | if(r_xram_rsp_fsm.read() == XRAM_RSP_INVAL_LOCK) |
---|
| 6410 | r_alloc_upt_fsm = ALLOC_UPT_XRAM_RSP; |
---|
| 6411 | |
---|
| 6412 | else if(r_cleanup_fsm.read() == CLEANUP_UPT_LOCK) |
---|
| 6413 | r_alloc_upt_fsm = ALLOC_UPT_CLEANUP; |
---|
| 6414 | |
---|
| 6415 | else if((r_cas_fsm.read() == CAS_UPT_LOCK) || |
---|
| 6416 | (r_cas_fsm.read() == CAS_BC_UPT_LOCK)) |
---|
| 6417 | r_alloc_upt_fsm = ALLOC_UPT_CAS; |
---|
| 6418 | |
---|
| 6419 | else if(r_multi_ack_fsm.read() == MULTI_ACK_UPT_LOCK) |
---|
| 6420 | r_alloc_upt_fsm = ALLOC_UPT_MULTI_ACK; |
---|
| 6421 | } |
---|
| 6422 | break; |
---|
| 6423 | |
---|
| 6424 | //////////////////////// |
---|
| 6425 | case ALLOC_UPT_XRAM_RSP: |
---|
| 6426 | if(r_xram_rsp_fsm.read() != XRAM_RSP_INVAL_LOCK) |
---|
| 6427 | { |
---|
| 6428 | if(r_cleanup_fsm.read() == CLEANUP_UPT_LOCK) |
---|
| 6429 | r_alloc_upt_fsm = ALLOC_UPT_CLEANUP; |
---|
| 6430 | |
---|
| 6431 | else if((r_cas_fsm.read() == CAS_UPT_LOCK) || |
---|
| 6432 | (r_cas_fsm.read() == CAS_BC_UPT_LOCK)) |
---|
| 6433 | r_alloc_upt_fsm = ALLOC_UPT_CAS; |
---|
| 6434 | |
---|
| 6435 | else if(r_multi_ack_fsm.read() == MULTI_ACK_UPT_LOCK) |
---|
| 6436 | r_alloc_upt_fsm = ALLOC_UPT_MULTI_ACK; |
---|
| 6437 | |
---|
| 6438 | else if((r_write_fsm.read() == WRITE_UPT_LOCK) || |
---|
| 6439 | (r_write_fsm.read() == WRITE_BC_UPT_LOCK)) |
---|
| 6440 | r_alloc_upt_fsm = ALLOC_UPT_WRITE; |
---|
| 6441 | } |
---|
| 6442 | break; |
---|
| 6443 | |
---|
| 6444 | ////////////////////////// |
---|
| 6445 | case ALLOC_UPT_CLEANUP: |
---|
[354] | 6446 | if((r_cleanup_fsm.read() != CLEANUP_UPT_LOCK ) && |
---|
| 6447 | (r_cleanup_fsm.read() != CLEANUP_UPT_DECREMENT)) |
---|
[331] | 6448 | { |
---|
| 6449 | if((r_cas_fsm.read() == CAS_UPT_LOCK) || |
---|
| 6450 | (r_cas_fsm.read() == CAS_BC_UPT_LOCK)) |
---|
| 6451 | r_alloc_upt_fsm = ALLOC_UPT_CAS; |
---|
| 6452 | |
---|
| 6453 | else if(r_multi_ack_fsm.read() == MULTI_ACK_UPT_LOCK) |
---|
| 6454 | r_alloc_upt_fsm = ALLOC_UPT_MULTI_ACK; |
---|
| 6455 | |
---|
| 6456 | else if((r_write_fsm.read() == WRITE_UPT_LOCK) || |
---|
| 6457 | (r_write_fsm.read() == WRITE_BC_UPT_LOCK)) |
---|
| 6458 | r_alloc_upt_fsm = ALLOC_UPT_WRITE; |
---|
| 6459 | |
---|
| 6460 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_INVAL_LOCK) |
---|
| 6461 | r_alloc_upt_fsm = ALLOC_UPT_XRAM_RSP; |
---|
| 6462 | } |
---|
| 6463 | break; |
---|
| 6464 | |
---|
| 6465 | ////////////////////////// |
---|
| 6466 | case ALLOC_UPT_CAS: |
---|
| 6467 | if((r_cas_fsm.read() != CAS_UPT_LOCK) && |
---|
| 6468 | (r_cas_fsm.read() != CAS_BC_UPT_LOCK)) |
---|
| 6469 | { |
---|
| 6470 | if(r_multi_ack_fsm.read() == MULTI_ACK_UPT_LOCK) |
---|
| 6471 | r_alloc_upt_fsm = ALLOC_UPT_MULTI_ACK; |
---|
| 6472 | |
---|
| 6473 | else if((r_write_fsm.read() == WRITE_UPT_LOCK) || |
---|
| 6474 | (r_write_fsm.read() == WRITE_BC_UPT_LOCK)) |
---|
| 6475 | r_alloc_upt_fsm = ALLOC_UPT_WRITE; |
---|
| 6476 | |
---|
| 6477 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_INVAL_LOCK) |
---|
| 6478 | r_alloc_upt_fsm = ALLOC_UPT_XRAM_RSP; |
---|
| 6479 | |
---|
| 6480 | else if(r_cleanup_fsm.read() == CLEANUP_UPT_LOCK) |
---|
| 6481 | r_alloc_upt_fsm = ALLOC_UPT_CLEANUP; |
---|
| 6482 | } |
---|
| 6483 | break; |
---|
| 6484 | |
---|
| 6485 | } // end switch r_alloc_upt_fsm |
---|
| 6486 | |
---|
| 6487 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6488 | // ALLOC_DIR FSM |
---|
| 6489 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6490 | // The ALLOC_DIR FSM allocates the access to the directory and |
---|
| 6491 | // the data cache with a round robin priority between 5 user FSMs : |
---|
| 6492 | // The cyclic ordering is READ > WRITE > CAS > CLEANUP > XRAM_RSP |
---|
| 6493 | // The ressource is always allocated. |
---|
| 6494 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 6495 | |
---|
| 6496 | switch(r_alloc_dir_fsm.read()) |
---|
| 6497 | { |
---|
| 6498 | case ALLOC_DIR_RESET: |
---|
| 6499 | // Initializes the directory one SET each cycle. All the WAYS of a SET are |
---|
| 6500 | // initialize in parallel |
---|
| 6501 | |
---|
| 6502 | r_alloc_dir_reset_cpt.write(r_alloc_dir_reset_cpt.read() + 1); |
---|
| 6503 | |
---|
| 6504 | if(r_alloc_dir_reset_cpt.read() == (m_sets - 1)) |
---|
| 6505 | { |
---|
| 6506 | m_cache_directory.init(); |
---|
| 6507 | |
---|
| 6508 | r_alloc_dir_fsm = ALLOC_DIR_READ; |
---|
| 6509 | } |
---|
| 6510 | break; |
---|
| 6511 | |
---|
| 6512 | //////////////////// |
---|
| 6513 | case ALLOC_DIR_READ: |
---|
| 6514 | if(((r_read_fsm.read() != READ_DIR_REQ) && |
---|
| 6515 | (r_read_fsm.read() != READ_DIR_LOCK) && |
---|
| 6516 | (r_read_fsm.read() != READ_TRT_LOCK) && |
---|
| 6517 | (r_read_fsm.read() != READ_HEAP_REQ)) |
---|
| 6518 | || |
---|
| 6519 | ((r_read_fsm.read() == READ_TRT_LOCK) && |
---|
| 6520 | (r_alloc_trt_fsm.read() == ALLOC_TRT_READ))) |
---|
| 6521 | { |
---|
| 6522 | if(r_write_fsm.read() == WRITE_DIR_REQ) |
---|
| 6523 | r_alloc_dir_fsm = ALLOC_DIR_WRITE; |
---|
| 6524 | |
---|
| 6525 | else if(r_cas_fsm.read() == CAS_DIR_REQ) |
---|
| 6526 | r_alloc_dir_fsm = ALLOC_DIR_CAS; |
---|
| 6527 | |
---|
| 6528 | else if(r_cleanup_fsm.read() == CLEANUP_DIR_REQ) |
---|
| 6529 | r_alloc_dir_fsm = ALLOC_DIR_CLEANUP; |
---|
| 6530 | |
---|
| 6531 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) |
---|
| 6532 | r_alloc_dir_fsm = ALLOC_DIR_XRAM_RSP; |
---|
| 6533 | } |
---|
| 6534 | break; |
---|
| 6535 | |
---|
| 6536 | ///////////////////// |
---|
| 6537 | case ALLOC_DIR_WRITE: |
---|
| 6538 | if(((r_write_fsm.read() != WRITE_DIR_REQ) && |
---|
| 6539 | (r_write_fsm.read() != WRITE_DIR_LOCK) && |
---|
| 6540 | (r_write_fsm.read() != WRITE_DIR_READ) && |
---|
| 6541 | (r_write_fsm.read() != WRITE_DIR_HIT) && |
---|
| 6542 | (r_write_fsm.read() != WRITE_BC_TRT_LOCK) && |
---|
| 6543 | (r_write_fsm.read() != WRITE_BC_UPT_LOCK) && |
---|
| 6544 | (r_write_fsm.read() != WRITE_MISS_TRT_LOCK) && |
---|
| 6545 | (r_write_fsm.read() != WRITE_UPT_LOCK) && |
---|
| 6546 | (r_write_fsm.read() != WRITE_UPT_HEAP_LOCK)) |
---|
| 6547 | || |
---|
| 6548 | ((r_write_fsm.read() == WRITE_UPT_HEAP_LOCK) && |
---|
| 6549 | (r_alloc_heap_fsm.read() == ALLOC_HEAP_WRITE)) |
---|
| 6550 | || |
---|
| 6551 | ((r_write_fsm.read() == WRITE_MISS_TRT_LOCK) && |
---|
| 6552 | (r_alloc_trt_fsm.read() == ALLOC_TRT_WRITE))) |
---|
| 6553 | { |
---|
| 6554 | if(r_cas_fsm.read() == CAS_DIR_REQ) |
---|
| 6555 | r_alloc_dir_fsm = ALLOC_DIR_CAS; |
---|
| 6556 | |
---|
| 6557 | else if(r_cleanup_fsm.read() == CLEANUP_DIR_REQ) |
---|
| 6558 | r_alloc_dir_fsm = ALLOC_DIR_CLEANUP; |
---|
| 6559 | |
---|
| 6560 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) |
---|
| 6561 | r_alloc_dir_fsm = ALLOC_DIR_XRAM_RSP; |
---|
| 6562 | |
---|
| 6563 | else if(r_read_fsm.read() == READ_DIR_REQ) |
---|
| 6564 | r_alloc_dir_fsm = ALLOC_DIR_READ; |
---|
| 6565 | } |
---|
| 6566 | break; |
---|
| 6567 | |
---|
| 6568 | //////////////////// |
---|
| 6569 | case ALLOC_DIR_CAS: |
---|
| 6570 | if(((r_cas_fsm.read() != CAS_DIR_REQ) && |
---|
| 6571 | (r_cas_fsm.read() != CAS_DIR_LOCK) && |
---|
| 6572 | (r_cas_fsm.read() != CAS_DIR_HIT_READ) && |
---|
| 6573 | (r_cas_fsm.read() != CAS_DIR_HIT_COMPARE) && |
---|
| 6574 | (r_cas_fsm.read() != CAS_DIR_HIT_WRITE) && |
---|
| 6575 | (r_cas_fsm.read() != CAS_BC_TRT_LOCK) && |
---|
| 6576 | (r_cas_fsm.read() != CAS_BC_UPT_LOCK) && |
---|
| 6577 | (r_cas_fsm.read() != CAS_MISS_TRT_LOCK) && |
---|
| 6578 | (r_cas_fsm.read() != CAS_UPT_LOCK) && |
---|
| 6579 | (r_cas_fsm.read() != CAS_UPT_HEAP_LOCK)) |
---|
| 6580 | || |
---|
| 6581 | ((r_cas_fsm.read() == CAS_UPT_HEAP_LOCK) && |
---|
| 6582 | (r_alloc_heap_fsm.read() == ALLOC_HEAP_CAS)) |
---|
| 6583 | || |
---|
| 6584 | ((r_cas_fsm.read() == CAS_MISS_TRT_LOCK) && |
---|
| 6585 | (r_alloc_trt_fsm.read() == ALLOC_TRT_CAS))) |
---|
| 6586 | { |
---|
| 6587 | if(r_cleanup_fsm.read() == CLEANUP_DIR_REQ) |
---|
| 6588 | r_alloc_dir_fsm = ALLOC_DIR_CLEANUP; |
---|
| 6589 | |
---|
| 6590 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) |
---|
| 6591 | r_alloc_dir_fsm = ALLOC_DIR_XRAM_RSP; |
---|
| 6592 | |
---|
| 6593 | else if(r_read_fsm.read() == READ_DIR_REQ) |
---|
| 6594 | r_alloc_dir_fsm = ALLOC_DIR_READ; |
---|
| 6595 | |
---|
| 6596 | else if(r_write_fsm.read() == WRITE_DIR_REQ) |
---|
| 6597 | r_alloc_dir_fsm = ALLOC_DIR_WRITE; |
---|
| 6598 | } |
---|
| 6599 | break; |
---|
| 6600 | |
---|
| 6601 | /////////////////////// |
---|
| 6602 | case ALLOC_DIR_CLEANUP: |
---|
| 6603 | if((r_cleanup_fsm.read() != CLEANUP_DIR_REQ) && |
---|
| 6604 | (r_cleanup_fsm.read() != CLEANUP_DIR_LOCK) && |
---|
| 6605 | (r_cleanup_fsm.read() != CLEANUP_HEAP_REQ) && |
---|
| 6606 | (r_cleanup_fsm.read() != CLEANUP_HEAP_LOCK)) |
---|
| 6607 | { |
---|
| 6608 | if(r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) |
---|
| 6609 | r_alloc_dir_fsm = ALLOC_DIR_XRAM_RSP; |
---|
| 6610 | |
---|
| 6611 | else if(r_read_fsm.read() == READ_DIR_REQ) |
---|
| 6612 | r_alloc_dir_fsm = ALLOC_DIR_READ; |
---|
| 6613 | |
---|
| 6614 | else if(r_write_fsm.read() == WRITE_DIR_REQ) |
---|
| 6615 | r_alloc_dir_fsm = ALLOC_DIR_WRITE; |
---|
| 6616 | |
---|
| 6617 | else if(r_cas_fsm.read() == CAS_DIR_REQ) |
---|
| 6618 | r_alloc_dir_fsm = ALLOC_DIR_CAS; |
---|
| 6619 | } |
---|
| 6620 | break; |
---|
| 6621 | |
---|
| 6622 | //////////////////////// |
---|
| 6623 | case ALLOC_DIR_XRAM_RSP: |
---|
| 6624 | if((r_xram_rsp_fsm.read() != XRAM_RSP_DIR_LOCK) && |
---|
| 6625 | (r_xram_rsp_fsm.read() != XRAM_RSP_TRT_COPY) && |
---|
| 6626 | (r_xram_rsp_fsm.read() != XRAM_RSP_INVAL_LOCK)) |
---|
| 6627 | { |
---|
| 6628 | if(r_read_fsm.read() == READ_DIR_REQ) |
---|
| 6629 | r_alloc_dir_fsm = ALLOC_DIR_READ; |
---|
| 6630 | |
---|
| 6631 | else if(r_write_fsm.read() == WRITE_DIR_REQ) |
---|
| 6632 | r_alloc_dir_fsm = ALLOC_DIR_WRITE; |
---|
| 6633 | |
---|
| 6634 | else if(r_cas_fsm.read() == CAS_DIR_REQ) |
---|
| 6635 | r_alloc_dir_fsm = ALLOC_DIR_CAS; |
---|
| 6636 | |
---|
| 6637 | else if(r_cleanup_fsm.read() == CLEANUP_DIR_REQ) |
---|
| 6638 | r_alloc_dir_fsm = ALLOC_DIR_CLEANUP; |
---|
| 6639 | } |
---|
| 6640 | break; |
---|
| 6641 | |
---|
| 6642 | } // end switch alloc_dir_fsm |
---|
| 6643 | |
---|
| 6644 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6645 | // ALLOC_TRT FSM |
---|
| 6646 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6647 | // The ALLOC_TRT fsm allocates the access to the Transaction Table (write buffer) |
---|
| 6648 | // with a round robin priority between 4 user FSMs : |
---|
| 6649 | // The cyclic priority is READ > WRITE > CAS > XRAM_RSP |
---|
| 6650 | // The ressource is always allocated. |
---|
| 6651 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 6652 | |
---|
| 6653 | switch(r_alloc_trt_fsm.read()) |
---|
| 6654 | { |
---|
| 6655 | //////////////////// |
---|
| 6656 | case ALLOC_TRT_READ: |
---|
| 6657 | if(r_read_fsm.read() != READ_TRT_LOCK) |
---|
| 6658 | { |
---|
| 6659 | if((r_write_fsm.read() == WRITE_MISS_TRT_LOCK) || |
---|
| 6660 | (r_write_fsm.read() == WRITE_BC_TRT_LOCK)) |
---|
| 6661 | r_alloc_trt_fsm = ALLOC_TRT_WRITE; |
---|
| 6662 | |
---|
| 6663 | else if((r_cas_fsm.read() == CAS_MISS_TRT_LOCK) || |
---|
| 6664 | (r_cas_fsm.read() == CAS_BC_TRT_LOCK)) |
---|
| 6665 | r_alloc_trt_fsm = ALLOC_TRT_CAS; |
---|
| 6666 | |
---|
| 6667 | else if((r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) && |
---|
| 6668 | (r_alloc_dir_fsm.read() == ALLOC_DIR_XRAM_RSP)) |
---|
| 6669 | r_alloc_trt_fsm = ALLOC_TRT_XRAM_RSP; |
---|
| 6670 | |
---|
| 6671 | else if((r_ixr_rsp_fsm.read() == IXR_RSP_TRT_ERASE) || |
---|
| 6672 | (r_ixr_rsp_fsm.read() == IXR_RSP_TRT_READ)) |
---|
| 6673 | r_alloc_trt_fsm = ALLOC_TRT_IXR_RSP; |
---|
| 6674 | } |
---|
| 6675 | break; |
---|
| 6676 | |
---|
| 6677 | ///////////////////// |
---|
| 6678 | case ALLOC_TRT_WRITE: |
---|
| 6679 | if((r_write_fsm.read() != WRITE_MISS_TRT_LOCK) && |
---|
| 6680 | (r_write_fsm.read() != WRITE_BC_TRT_LOCK) && |
---|
| 6681 | (r_write_fsm.read() != WRITE_BC_UPT_LOCK)) |
---|
| 6682 | { |
---|
| 6683 | if((r_cas_fsm.read() == CAS_MISS_TRT_LOCK) || |
---|
| 6684 | (r_cas_fsm.read() == CAS_BC_TRT_LOCK)) |
---|
| 6685 | r_alloc_trt_fsm = ALLOC_TRT_CAS; |
---|
| 6686 | |
---|
| 6687 | else if((r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) && |
---|
| 6688 | (r_alloc_dir_fsm.read() == ALLOC_DIR_XRAM_RSP)) |
---|
| 6689 | r_alloc_trt_fsm = ALLOC_TRT_XRAM_RSP; |
---|
| 6690 | |
---|
| 6691 | else if((r_ixr_rsp_fsm.read() == IXR_RSP_TRT_ERASE) || |
---|
| 6692 | (r_ixr_rsp_fsm.read() == IXR_RSP_TRT_READ)) |
---|
| 6693 | r_alloc_trt_fsm = ALLOC_TRT_IXR_RSP; |
---|
| 6694 | |
---|
| 6695 | else if(r_read_fsm.read() == READ_TRT_LOCK) |
---|
| 6696 | r_alloc_trt_fsm = ALLOC_TRT_READ; |
---|
| 6697 | } |
---|
| 6698 | break; |
---|
| 6699 | |
---|
| 6700 | //////////////////// |
---|
| 6701 | case ALLOC_TRT_CAS: |
---|
| 6702 | if((r_cas_fsm.read() != CAS_MISS_TRT_LOCK) && |
---|
| 6703 | (r_cas_fsm.read() != CAS_BC_TRT_LOCK) && |
---|
| 6704 | (r_cas_fsm.read() != CAS_BC_UPT_LOCK)) |
---|
| 6705 | { |
---|
| 6706 | if((r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) && |
---|
| 6707 | (r_alloc_dir_fsm.read() == ALLOC_DIR_XRAM_RSP)) |
---|
| 6708 | r_alloc_trt_fsm = ALLOC_TRT_XRAM_RSP; |
---|
| 6709 | |
---|
| 6710 | else if((r_ixr_rsp_fsm.read() == IXR_RSP_TRT_ERASE) || |
---|
| 6711 | (r_ixr_rsp_fsm.read() == IXR_RSP_TRT_READ)) |
---|
| 6712 | r_alloc_trt_fsm = ALLOC_TRT_IXR_RSP; |
---|
| 6713 | |
---|
| 6714 | else if(r_read_fsm.read() == READ_TRT_LOCK) |
---|
| 6715 | r_alloc_trt_fsm = ALLOC_TRT_READ; |
---|
| 6716 | |
---|
| 6717 | else if((r_write_fsm.read() == WRITE_MISS_TRT_LOCK) || |
---|
| 6718 | (r_write_fsm.read() == WRITE_BC_TRT_LOCK)) |
---|
| 6719 | r_alloc_trt_fsm = ALLOC_TRT_WRITE; |
---|
| 6720 | } |
---|
| 6721 | break; |
---|
| 6722 | |
---|
| 6723 | //////////////////////// |
---|
| 6724 | case ALLOC_TRT_XRAM_RSP: |
---|
| 6725 | if(((r_xram_rsp_fsm.read() != XRAM_RSP_DIR_LOCK) || |
---|
| 6726 | (r_alloc_dir_fsm.read() != ALLOC_DIR_XRAM_RSP)) && |
---|
| 6727 | (r_xram_rsp_fsm.read() != XRAM_RSP_TRT_COPY) && |
---|
| 6728 | (r_xram_rsp_fsm.read() != XRAM_RSP_DIR_UPDT) && |
---|
| 6729 | (r_xram_rsp_fsm.read() != XRAM_RSP_INVAL_LOCK)) |
---|
| 6730 | { |
---|
| 6731 | if((r_ixr_rsp_fsm.read() == IXR_RSP_TRT_ERASE) || |
---|
| 6732 | (r_ixr_rsp_fsm.read() == IXR_RSP_TRT_READ)) |
---|
| 6733 | r_alloc_trt_fsm = ALLOC_TRT_IXR_RSP; |
---|
| 6734 | |
---|
| 6735 | else if(r_read_fsm.read() == READ_TRT_LOCK) |
---|
| 6736 | r_alloc_trt_fsm = ALLOC_TRT_READ; |
---|
| 6737 | |
---|
| 6738 | else if((r_write_fsm.read() == WRITE_MISS_TRT_LOCK) || |
---|
| 6739 | (r_write_fsm.read() == WRITE_BC_TRT_LOCK)) |
---|
| 6740 | r_alloc_trt_fsm = ALLOC_TRT_WRITE; |
---|
| 6741 | |
---|
| 6742 | else if((r_cas_fsm.read() == CAS_MISS_TRT_LOCK) || |
---|
| 6743 | (r_cas_fsm.read() == CAS_BC_TRT_LOCK)) |
---|
| 6744 | r_alloc_trt_fsm = ALLOC_TRT_CAS; |
---|
| 6745 | } |
---|
| 6746 | break; |
---|
| 6747 | |
---|
| 6748 | //////////////////////// |
---|
| 6749 | case ALLOC_TRT_IXR_RSP: |
---|
| 6750 | if((r_ixr_rsp_fsm.read() != IXR_RSP_TRT_ERASE) && |
---|
| 6751 | (r_ixr_rsp_fsm.read() != IXR_RSP_TRT_READ)) |
---|
| 6752 | { |
---|
| 6753 | if(r_read_fsm.read() == READ_TRT_LOCK) |
---|
| 6754 | r_alloc_trt_fsm = ALLOC_TRT_READ; |
---|
| 6755 | |
---|
| 6756 | else if((r_write_fsm.read() == WRITE_MISS_TRT_LOCK) || |
---|
| 6757 | (r_write_fsm.read() == WRITE_BC_TRT_LOCK)) |
---|
| 6758 | r_alloc_trt_fsm = ALLOC_TRT_WRITE; |
---|
| 6759 | |
---|
| 6760 | else if((r_cas_fsm.read() == CAS_MISS_TRT_LOCK) || |
---|
| 6761 | (r_cas_fsm.read() == CAS_BC_TRT_LOCK)) |
---|
| 6762 | r_alloc_trt_fsm = ALLOC_TRT_CAS; |
---|
| 6763 | |
---|
| 6764 | else if((r_xram_rsp_fsm.read() == XRAM_RSP_DIR_LOCK) && |
---|
| 6765 | (r_alloc_dir_fsm.read() == ALLOC_DIR_XRAM_RSP)) |
---|
| 6766 | r_alloc_trt_fsm = ALLOC_TRT_XRAM_RSP; |
---|
| 6767 | } |
---|
| 6768 | break; |
---|
| 6769 | |
---|
| 6770 | } // end switch alloc_trt_fsm |
---|
| 6771 | |
---|
| 6772 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6773 | // ALLOC_HEAP FSM |
---|
| 6774 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6775 | // The ALLOC_HEAP FSM allocates the access to the heap |
---|
| 6776 | // with a round robin priority between 5 user FSMs : |
---|
| 6777 | // The cyclic ordering is READ > WRITE > CAS > CLEANUP > XRAM_RSP |
---|
| 6778 | // The ressource is always allocated. |
---|
| 6779 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 6780 | |
---|
| 6781 | switch(r_alloc_heap_fsm.read()) |
---|
| 6782 | { |
---|
| 6783 | //////////////////// |
---|
| 6784 | case ALLOC_HEAP_RESET: |
---|
| 6785 | // Initializes the heap one ENTRY each cycle. |
---|
| 6786 | |
---|
| 6787 | r_alloc_heap_reset_cpt.write(r_alloc_heap_reset_cpt.read() + 1); |
---|
| 6788 | |
---|
| 6789 | if(r_alloc_heap_reset_cpt.read() == (m_heap_size-1)) |
---|
| 6790 | { |
---|
| 6791 | m_heap.init(); |
---|
| 6792 | |
---|
| 6793 | r_alloc_heap_fsm = ALLOC_HEAP_READ; |
---|
| 6794 | } |
---|
| 6795 | break; |
---|
| 6796 | |
---|
| 6797 | //////////////////// |
---|
| 6798 | case ALLOC_HEAP_READ: |
---|
| 6799 | if((r_read_fsm.read() != READ_HEAP_REQ) && |
---|
| 6800 | (r_read_fsm.read() != READ_HEAP_LOCK) && |
---|
| 6801 | (r_read_fsm.read() != READ_HEAP_ERASE)) |
---|
| 6802 | { |
---|
| 6803 | if(r_write_fsm.read() == WRITE_UPT_HEAP_LOCK) |
---|
| 6804 | r_alloc_heap_fsm = ALLOC_HEAP_WRITE; |
---|
| 6805 | |
---|
| 6806 | else if(r_cas_fsm.read() == CAS_UPT_HEAP_LOCK) |
---|
| 6807 | r_alloc_heap_fsm = ALLOC_HEAP_CAS; |
---|
| 6808 | |
---|
| 6809 | else if(r_cleanup_fsm.read() == CLEANUP_HEAP_REQ) |
---|
| 6810 | r_alloc_heap_fsm = ALLOC_HEAP_CLEANUP; |
---|
| 6811 | |
---|
| 6812 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_HEAP_REQ) |
---|
| 6813 | r_alloc_heap_fsm = ALLOC_HEAP_XRAM_RSP; |
---|
| 6814 | } |
---|
| 6815 | break; |
---|
| 6816 | |
---|
| 6817 | ///////////////////// |
---|
| 6818 | case ALLOC_HEAP_WRITE: |
---|
| 6819 | if((r_write_fsm.read() != WRITE_UPT_HEAP_LOCK) && |
---|
| 6820 | (r_write_fsm.read() != WRITE_UPT_REQ) && |
---|
| 6821 | (r_write_fsm.read() != WRITE_UPT_NEXT)) |
---|
| 6822 | { |
---|
| 6823 | if(r_cas_fsm.read() == CAS_UPT_HEAP_LOCK) |
---|
| 6824 | r_alloc_heap_fsm = ALLOC_HEAP_CAS; |
---|
| 6825 | |
---|
| 6826 | else if(r_cleanup_fsm.read() == CLEANUP_HEAP_REQ) |
---|
| 6827 | r_alloc_heap_fsm = ALLOC_HEAP_CLEANUP; |
---|
| 6828 | |
---|
| 6829 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_HEAP_REQ) |
---|
| 6830 | r_alloc_heap_fsm = ALLOC_HEAP_XRAM_RSP; |
---|
| 6831 | |
---|
| 6832 | else if(r_read_fsm.read() == READ_HEAP_REQ) |
---|
| 6833 | r_alloc_heap_fsm = ALLOC_HEAP_READ; |
---|
| 6834 | } |
---|
| 6835 | break; |
---|
| 6836 | |
---|
| 6837 | //////////////////// |
---|
| 6838 | case ALLOC_HEAP_CAS: |
---|
| 6839 | if((r_cas_fsm.read() != CAS_UPT_HEAP_LOCK) && |
---|
| 6840 | (r_cas_fsm.read() != CAS_UPT_REQ) && |
---|
| 6841 | (r_cas_fsm.read() != CAS_UPT_NEXT)) |
---|
| 6842 | { |
---|
| 6843 | if(r_cleanup_fsm.read() == CLEANUP_HEAP_REQ) |
---|
| 6844 | r_alloc_heap_fsm = ALLOC_HEAP_CLEANUP; |
---|
| 6845 | |
---|
| 6846 | else if(r_xram_rsp_fsm.read() == XRAM_RSP_HEAP_REQ) |
---|
| 6847 | r_alloc_heap_fsm = ALLOC_HEAP_XRAM_RSP; |
---|
| 6848 | |
---|
| 6849 | else if(r_read_fsm.read() == READ_HEAP_REQ) |
---|
| 6850 | r_alloc_heap_fsm = ALLOC_HEAP_READ; |
---|
| 6851 | |
---|
| 6852 | else if(r_write_fsm.read() == WRITE_UPT_HEAP_LOCK) |
---|
| 6853 | r_alloc_heap_fsm = ALLOC_HEAP_WRITE; |
---|
| 6854 | } |
---|
| 6855 | break; |
---|
| 6856 | |
---|
| 6857 | /////////////////////// |
---|
| 6858 | case ALLOC_HEAP_CLEANUP: |
---|
| 6859 | if((r_cleanup_fsm.read() != CLEANUP_HEAP_REQ) && |
---|
| 6860 | (r_cleanup_fsm.read() != CLEANUP_HEAP_LOCK) && |
---|
| 6861 | (r_cleanup_fsm.read() != CLEANUP_HEAP_SEARCH) && |
---|
| 6862 | (r_cleanup_fsm.read() != CLEANUP_HEAP_CLEAN)) |
---|
| 6863 | { |
---|
| 6864 | if(r_xram_rsp_fsm.read() == XRAM_RSP_HEAP_REQ) |
---|
| 6865 | r_alloc_heap_fsm = ALLOC_HEAP_XRAM_RSP; |
---|
| 6866 | |
---|
| 6867 | else if(r_read_fsm.read() == READ_HEAP_REQ) |
---|
| 6868 | r_alloc_heap_fsm = ALLOC_HEAP_READ; |
---|
| 6869 | |
---|
| 6870 | else if(r_write_fsm.read() == WRITE_UPT_HEAP_LOCK) |
---|
| 6871 | r_alloc_heap_fsm = ALLOC_HEAP_WRITE; |
---|
| 6872 | |
---|
| 6873 | else if(r_cas_fsm.read() == CAS_UPT_HEAP_LOCK) |
---|
| 6874 | r_alloc_heap_fsm = ALLOC_HEAP_CAS; |
---|
| 6875 | } |
---|
| 6876 | break; |
---|
| 6877 | |
---|
| 6878 | //////////////////////// |
---|
| 6879 | case ALLOC_HEAP_XRAM_RSP: |
---|
| 6880 | if((r_xram_rsp_fsm.read() != XRAM_RSP_HEAP_REQ) && |
---|
| 6881 | (r_xram_rsp_fsm.read() != XRAM_RSP_HEAP_ERASE)) |
---|
| 6882 | { |
---|
| 6883 | if(r_read_fsm.read() == READ_HEAP_REQ) |
---|
| 6884 | r_alloc_heap_fsm = ALLOC_HEAP_READ; |
---|
| 6885 | |
---|
| 6886 | else if(r_write_fsm.read() == WRITE_UPT_HEAP_LOCK) |
---|
| 6887 | r_alloc_heap_fsm = ALLOC_HEAP_WRITE; |
---|
| 6888 | |
---|
| 6889 | else if(r_cas_fsm.read() == CAS_UPT_HEAP_LOCK) |
---|
| 6890 | r_alloc_heap_fsm = ALLOC_HEAP_CAS; |
---|
| 6891 | |
---|
| 6892 | else if(r_cleanup_fsm.read() == CLEANUP_HEAP_REQ) |
---|
| 6893 | r_alloc_heap_fsm = ALLOC_HEAP_CLEANUP; |
---|
| 6894 | |
---|
| 6895 | } |
---|
| 6896 | break; |
---|
| 6897 | |
---|
| 6898 | } // end switch alloc_heap_fsm |
---|
| 6899 | |
---|
| 6900 | |
---|
| 6901 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6902 | // TGT_CMD to READ FIFO |
---|
| 6903 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6904 | |
---|
| 6905 | if(cmd_read_fifo_put) |
---|
| 6906 | { |
---|
| 6907 | if(cmd_read_fifo_get) |
---|
| 6908 | { |
---|
| 6909 | m_cmd_read_addr_fifo.put_and_get((addr_t)(p_vci_tgt.address.read())); |
---|
| 6910 | m_cmd_read_length_fifo.put_and_get(p_vci_tgt.plen.read() >>2); |
---|
| 6911 | m_cmd_read_srcid_fifo.put_and_get(p_vci_tgt.srcid.read()); |
---|
| 6912 | m_cmd_read_trdid_fifo.put_and_get(p_vci_tgt.trdid.read()); |
---|
| 6913 | m_cmd_read_pktid_fifo.put_and_get(p_vci_tgt.pktid.read()); |
---|
| 6914 | } |
---|
| 6915 | else |
---|
| 6916 | { |
---|
| 6917 | m_cmd_read_addr_fifo.simple_put((addr_t)(p_vci_tgt.address.read())); |
---|
| 6918 | m_cmd_read_length_fifo.simple_put(p_vci_tgt.plen.read() >>2); |
---|
| 6919 | m_cmd_read_srcid_fifo.simple_put(p_vci_tgt.srcid.read()); |
---|
| 6920 | m_cmd_read_trdid_fifo.simple_put(p_vci_tgt.trdid.read()); |
---|
| 6921 | m_cmd_read_pktid_fifo.simple_put(p_vci_tgt.pktid.read()); |
---|
| 6922 | } |
---|
| 6923 | } |
---|
| 6924 | else |
---|
| 6925 | { |
---|
| 6926 | if(cmd_read_fifo_get) |
---|
| 6927 | { |
---|
| 6928 | m_cmd_read_addr_fifo.simple_get(); |
---|
| 6929 | m_cmd_read_length_fifo.simple_get(); |
---|
| 6930 | m_cmd_read_srcid_fifo.simple_get(); |
---|
| 6931 | m_cmd_read_trdid_fifo.simple_get(); |
---|
| 6932 | m_cmd_read_pktid_fifo.simple_get(); |
---|
| 6933 | } |
---|
| 6934 | } |
---|
| 6935 | ///////////////////////////////////////////////////////////////////// |
---|
| 6936 | // TGT_CMD to WRITE FIFO |
---|
| 6937 | ///////////////////////////////////////////////////////////////////// |
---|
| 6938 | |
---|
| 6939 | if(cmd_write_fifo_put) |
---|
| 6940 | { |
---|
| 6941 | if(cmd_write_fifo_get) |
---|
| 6942 | { |
---|
| 6943 | m_cmd_write_addr_fifo.put_and_get((addr_t)(p_vci_tgt.address.read())); |
---|
| 6944 | m_cmd_write_eop_fifo.put_and_get(p_vci_tgt.eop.read()); |
---|
| 6945 | m_cmd_write_srcid_fifo.put_and_get(p_vci_tgt.srcid.read()); |
---|
| 6946 | m_cmd_write_trdid_fifo.put_and_get(p_vci_tgt.trdid.read()); |
---|
| 6947 | m_cmd_write_pktid_fifo.put_and_get(p_vci_tgt.pktid.read()); |
---|
| 6948 | m_cmd_write_data_fifo.put_and_get(p_vci_tgt.wdata.read()); |
---|
| 6949 | m_cmd_write_be_fifo.put_and_get(p_vci_tgt.be.read()); |
---|
| 6950 | } |
---|
| 6951 | else |
---|
| 6952 | { |
---|
| 6953 | m_cmd_write_addr_fifo.simple_put((addr_t)(p_vci_tgt.address.read())); |
---|
| 6954 | m_cmd_write_eop_fifo.simple_put(p_vci_tgt.eop.read()); |
---|
| 6955 | m_cmd_write_srcid_fifo.simple_put(p_vci_tgt.srcid.read()); |
---|
| 6956 | m_cmd_write_trdid_fifo.simple_put(p_vci_tgt.trdid.read()); |
---|
| 6957 | m_cmd_write_pktid_fifo.simple_put(p_vci_tgt.pktid.read()); |
---|
| 6958 | m_cmd_write_data_fifo.simple_put(p_vci_tgt.wdata.read()); |
---|
| 6959 | m_cmd_write_be_fifo.simple_put(p_vci_tgt.be.read()); |
---|
| 6960 | } |
---|
| 6961 | } |
---|
| 6962 | else |
---|
| 6963 | { |
---|
| 6964 | if(cmd_write_fifo_get) |
---|
| 6965 | { |
---|
| 6966 | m_cmd_write_addr_fifo.simple_get(); |
---|
| 6967 | m_cmd_write_eop_fifo.simple_get(); |
---|
| 6968 | m_cmd_write_srcid_fifo.simple_get(); |
---|
| 6969 | m_cmd_write_trdid_fifo.simple_get(); |
---|
| 6970 | m_cmd_write_pktid_fifo.simple_get(); |
---|
| 6971 | m_cmd_write_data_fifo.simple_get(); |
---|
| 6972 | m_cmd_write_be_fifo.simple_get(); |
---|
| 6973 | } |
---|
| 6974 | } |
---|
| 6975 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6976 | // TGT_CMD to CAS FIFO |
---|
| 6977 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 6978 | |
---|
| 6979 | if(cmd_cas_fifo_put) |
---|
| 6980 | { |
---|
| 6981 | if(cmd_cas_fifo_get) |
---|
| 6982 | { |
---|
| 6983 | m_cmd_cas_addr_fifo.put_and_get((addr_t)(p_vci_tgt.address.read())); |
---|
| 6984 | m_cmd_cas_eop_fifo.put_and_get(p_vci_tgt.eop.read()); |
---|
| 6985 | m_cmd_cas_srcid_fifo.put_and_get(p_vci_tgt.srcid.read()); |
---|
| 6986 | m_cmd_cas_trdid_fifo.put_and_get(p_vci_tgt.trdid.read()); |
---|
| 6987 | m_cmd_cas_pktid_fifo.put_and_get(p_vci_tgt.pktid.read()); |
---|
| 6988 | m_cmd_cas_wdata_fifo.put_and_get(p_vci_tgt.wdata.read()); |
---|
| 6989 | } |
---|
| 6990 | else |
---|
| 6991 | { |
---|
| 6992 | m_cmd_cas_addr_fifo.simple_put((addr_t)(p_vci_tgt.address.read())); |
---|
| 6993 | m_cmd_cas_eop_fifo.simple_put(p_vci_tgt.eop.read()); |
---|
| 6994 | m_cmd_cas_srcid_fifo.simple_put(p_vci_tgt.srcid.read()); |
---|
| 6995 | m_cmd_cas_trdid_fifo.simple_put(p_vci_tgt.trdid.read()); |
---|
| 6996 | m_cmd_cas_pktid_fifo.simple_put(p_vci_tgt.pktid.read()); |
---|
| 6997 | m_cmd_cas_wdata_fifo.simple_put(p_vci_tgt.wdata.read()); |
---|
| 6998 | } |
---|
| 6999 | } |
---|
| 7000 | else |
---|
| 7001 | { |
---|
| 7002 | if(cmd_cas_fifo_get) |
---|
| 7003 | { |
---|
| 7004 | m_cmd_cas_addr_fifo.simple_get(); |
---|
| 7005 | m_cmd_cas_eop_fifo.simple_get(); |
---|
| 7006 | m_cmd_cas_srcid_fifo.simple_get(); |
---|
| 7007 | m_cmd_cas_trdid_fifo.simple_get(); |
---|
| 7008 | m_cmd_cas_pktid_fifo.simple_get(); |
---|
| 7009 | m_cmd_cas_wdata_fifo.simple_get(); |
---|
| 7010 | } |
---|
| 7011 | } |
---|
| 7012 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7013 | // CC_RECEIVE to CLEANUP FIFO |
---|
| 7014 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7015 | |
---|
| 7016 | if(cc_receive_to_cleanup_fifo_put) |
---|
| 7017 | { |
---|
| 7018 | if(cc_receive_to_cleanup_fifo_get) |
---|
| 7019 | { |
---|
| 7020 | m_cc_receive_to_cleanup_fifo.put_and_get(p_dspin_in.data.read()); |
---|
| 7021 | } |
---|
| 7022 | else |
---|
| 7023 | { |
---|
| 7024 | m_cc_receive_to_cleanup_fifo.simple_put(p_dspin_in.data.read()); |
---|
| 7025 | } |
---|
| 7026 | } |
---|
| 7027 | else |
---|
| 7028 | { |
---|
| 7029 | if(cc_receive_to_cleanup_fifo_get) |
---|
| 7030 | { |
---|
| 7031 | m_cc_receive_to_cleanup_fifo.simple_get(); |
---|
| 7032 | } |
---|
| 7033 | } |
---|
| 7034 | |
---|
| 7035 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7036 | // CC_RECEIVE to MULTI_ACK FIFO |
---|
| 7037 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7038 | |
---|
| 7039 | if(cc_receive_to_multi_ack_fifo_put) |
---|
| 7040 | { |
---|
| 7041 | if(cc_receive_to_multi_ack_fifo_get) |
---|
| 7042 | { |
---|
| 7043 | m_cc_receive_to_multi_ack_fifo.put_and_get(p_dspin_in.data.read()); |
---|
| 7044 | } |
---|
| 7045 | else |
---|
| 7046 | { |
---|
| 7047 | m_cc_receive_to_multi_ack_fifo.simple_put(p_dspin_in.data.read()); |
---|
| 7048 | } |
---|
| 7049 | } |
---|
| 7050 | else |
---|
| 7051 | { |
---|
| 7052 | if(cc_receive_to_multi_ack_fifo_get) |
---|
| 7053 | { |
---|
| 7054 | m_cc_receive_to_multi_ack_fifo.simple_get(); |
---|
| 7055 | } |
---|
| 7056 | } |
---|
| 7057 | |
---|
| 7058 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7059 | // WRITE to CC_SEND FIFO |
---|
| 7060 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7061 | |
---|
| 7062 | if(write_to_cc_send_fifo_put) |
---|
| 7063 | { |
---|
| 7064 | if(write_to_cc_send_fifo_get) |
---|
| 7065 | { |
---|
| 7066 | m_write_to_cc_send_inst_fifo.put_and_get(write_to_cc_send_fifo_inst); |
---|
| 7067 | m_write_to_cc_send_srcid_fifo.put_and_get(write_to_cc_send_fifo_srcid); |
---|
| 7068 | #if L1_MULTI_CACHE |
---|
| 7069 | m_write_to_cc_send_cache_id_fifo.put_and_get(write_to_cc_send_fifo_cache_id); |
---|
| 7070 | #endif |
---|
| 7071 | } |
---|
| 7072 | else |
---|
| 7073 | { |
---|
| 7074 | m_write_to_cc_send_inst_fifo.simple_put(write_to_cc_send_fifo_inst); |
---|
| 7075 | m_write_to_cc_send_srcid_fifo.simple_put(write_to_cc_send_fifo_srcid); |
---|
| 7076 | #if L1_MULTI_CACHE |
---|
| 7077 | m_write_to_cc_send_cache_id_fifo.simple_put(write_to_cc_send_fifo_cache_id); |
---|
| 7078 | #endif |
---|
| 7079 | } |
---|
| 7080 | } |
---|
| 7081 | else |
---|
| 7082 | { |
---|
| 7083 | if(write_to_cc_send_fifo_get) |
---|
| 7084 | { |
---|
| 7085 | m_write_to_cc_send_inst_fifo.simple_get(); |
---|
| 7086 | m_write_to_cc_send_srcid_fifo.simple_get(); |
---|
| 7087 | #if L1_MULTI_CACHE |
---|
| 7088 | m_write_to_cc_send_cache_id_fifo.simple_get(); |
---|
| 7089 | #endif |
---|
| 7090 | } |
---|
| 7091 | } |
---|
| 7092 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7093 | // XRAM_RSP to CC_SEND FIFO |
---|
| 7094 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7095 | |
---|
| 7096 | if(xram_rsp_to_cc_send_fifo_put) |
---|
| 7097 | { |
---|
| 7098 | if(xram_rsp_to_cc_send_fifo_get) |
---|
| 7099 | { |
---|
| 7100 | m_xram_rsp_to_cc_send_inst_fifo.put_and_get(xram_rsp_to_cc_send_fifo_inst); |
---|
| 7101 | m_xram_rsp_to_cc_send_srcid_fifo.put_and_get(xram_rsp_to_cc_send_fifo_srcid); |
---|
| 7102 | #if L1_MULTI_CACHE |
---|
| 7103 | m_xram_rsp_to_cc_send_cache_id_fifo.put_and_get(xram_rsp_to_cc_send_fifo_cache_id); |
---|
| 7104 | #endif |
---|
| 7105 | } |
---|
| 7106 | else |
---|
| 7107 | { |
---|
| 7108 | m_xram_rsp_to_cc_send_inst_fifo.simple_put(xram_rsp_to_cc_send_fifo_inst); |
---|
| 7109 | m_xram_rsp_to_cc_send_srcid_fifo.simple_put(xram_rsp_to_cc_send_fifo_srcid); |
---|
| 7110 | #if L1_MULTI_CACHE |
---|
| 7111 | m_xram_rsp_to_cc_send_cache_id_fifo.simple_put(xram_rsp_to_cc_send_fifo_cache_id); |
---|
| 7112 | #endif |
---|
| 7113 | } |
---|
| 7114 | } |
---|
| 7115 | else |
---|
| 7116 | { |
---|
| 7117 | if(xram_rsp_to_cc_send_fifo_get) |
---|
| 7118 | { |
---|
| 7119 | m_xram_rsp_to_cc_send_inst_fifo.simple_get(); |
---|
| 7120 | m_xram_rsp_to_cc_send_srcid_fifo.simple_get(); |
---|
| 7121 | #if L1_MULTI_CACHE |
---|
| 7122 | m_xram_rsp_to_cc_send_cache_id_fifo.simple_get(); |
---|
| 7123 | #endif |
---|
| 7124 | } |
---|
| 7125 | } |
---|
| 7126 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7127 | // CAS to CC_SEND FIFO |
---|
| 7128 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 7129 | |
---|
| 7130 | if(cas_to_cc_send_fifo_put) |
---|
| 7131 | { |
---|
| 7132 | if(cas_to_cc_send_fifo_get) |
---|
| 7133 | { |
---|
| 7134 | m_cas_to_cc_send_inst_fifo.put_and_get(cas_to_cc_send_fifo_inst); |
---|
| 7135 | m_cas_to_cc_send_srcid_fifo.put_and_get(cas_to_cc_send_fifo_srcid); |
---|
| 7136 | #if L1_MULTI_CACHE |
---|
| 7137 | m_cas_to_cc_send_cache_id_fifo.put_and_get(cas_to_cc_send_fifo_cache_id); |
---|
| 7138 | #endif |
---|
| 7139 | } |
---|
| 7140 | else |
---|
| 7141 | { |
---|
| 7142 | m_cas_to_cc_send_inst_fifo.simple_put(cas_to_cc_send_fifo_inst); |
---|
| 7143 | m_cas_to_cc_send_srcid_fifo.simple_put(cas_to_cc_send_fifo_srcid); |
---|
| 7144 | #if L1_MULTI_CACHE |
---|
| 7145 | m_cas_to_cc_send_cache_id_fifo.simple_put(cas_to_cc_send_fifo_cache_id); |
---|
| 7146 | #endif |
---|
| 7147 | } |
---|
| 7148 | } |
---|
| 7149 | else |
---|
| 7150 | { |
---|
| 7151 | if(cas_to_cc_send_fifo_get) |
---|
| 7152 | { |
---|
| 7153 | m_cas_to_cc_send_inst_fifo.simple_get(); |
---|
| 7154 | m_cas_to_cc_send_srcid_fifo.simple_get(); |
---|
| 7155 | #if L1_MULTI_CACHE |
---|
| 7156 | m_cas_to_cc_send_cache_id_fifo.simple_get(); |
---|
| 7157 | #endif |
---|
| 7158 | } |
---|
| 7159 | } |
---|
| 7160 | |
---|
| 7161 | m_cpt_cycles++; |
---|
| 7162 | |
---|
| 7163 | } // end transition() |
---|
| 7164 | |
---|
| 7165 | ///////////////////////////// |
---|
| 7166 | tmpl(void)::genMoore() |
---|
| 7167 | ///////////////////////////// |
---|
| 7168 | { |
---|
| 7169 | //////////////////////////////////////////////////////////// |
---|
| 7170 | // Command signals on the p_vci_ixr port |
---|
| 7171 | //////////////////////////////////////////////////////////// |
---|
| 7172 | |
---|
| 7173 | p_vci_ixr.be = 0xF; |
---|
| 7174 | p_vci_ixr.pktid = 0; |
---|
[346] | 7175 | p_vci_ixr.srcid = m_srcid_x; |
---|
[331] | 7176 | p_vci_ixr.cons = false; |
---|
| 7177 | p_vci_ixr.wrap = false; |
---|
| 7178 | p_vci_ixr.contig = true; |
---|
| 7179 | p_vci_ixr.clen = 0; |
---|
| 7180 | p_vci_ixr.cfixed = false; |
---|
| 7181 | |
---|
| 7182 | if(r_ixr_cmd_fsm.read() == IXR_CMD_READ_NLINE) |
---|
| 7183 | { |
---|
| 7184 | p_vci_ixr.cmd = vci_param::CMD_READ; |
---|
| 7185 | p_vci_ixr.cmdval = true; |
---|
| 7186 | p_vci_ixr.address = (addr_t)(r_read_to_ixr_cmd_nline.read() *m_words*4); |
---|
| 7187 | p_vci_ixr.plen = m_words*4; |
---|
| 7188 | p_vci_ixr.wdata = 0x00000000; |
---|
| 7189 | p_vci_ixr.trdid = r_read_to_ixr_cmd_trdid.read(); |
---|
| 7190 | p_vci_ixr.eop = true; |
---|
| 7191 | } |
---|
| 7192 | else if(r_ixr_cmd_fsm.read() == IXR_CMD_CAS_NLINE) |
---|
| 7193 | { |
---|
| 7194 | if(r_cas_to_ixr_cmd_write.read()) |
---|
| 7195 | { |
---|
| 7196 | p_vci_ixr.cmd = vci_param::CMD_WRITE; |
---|
| 7197 | p_vci_ixr.cmdval = true; |
---|
| 7198 | p_vci_ixr.address = (addr_t)((r_cas_to_ixr_cmd_nline.read() *m_words+r_ixr_cmd_cpt.read()) *4); |
---|
| 7199 | p_vci_ixr.plen = m_words*4; |
---|
| 7200 | p_vci_ixr.wdata = r_cas_to_ixr_cmd_data[r_ixr_cmd_cpt.read()].read(); |
---|
| 7201 | p_vci_ixr.trdid = r_cas_to_ixr_cmd_trdid.read(); |
---|
| 7202 | p_vci_ixr.eop = (r_ixr_cmd_cpt == (m_words-1)); |
---|
| 7203 | } |
---|
| 7204 | else |
---|
| 7205 | { |
---|
| 7206 | p_vci_ixr.cmd = vci_param::CMD_READ; |
---|
| 7207 | p_vci_ixr.cmdval = true; |
---|
| 7208 | p_vci_ixr.address = (addr_t)(r_cas_to_ixr_cmd_nline.read() *m_words*4); |
---|
| 7209 | p_vci_ixr.plen = m_words*4; |
---|
| 7210 | p_vci_ixr.wdata = 0x00000000; |
---|
| 7211 | p_vci_ixr.trdid = r_cas_to_ixr_cmd_trdid.read(); |
---|
| 7212 | p_vci_ixr.eop = true; |
---|
| 7213 | } |
---|
| 7214 | } |
---|
| 7215 | else if(r_ixr_cmd_fsm.read() == IXR_CMD_WRITE_NLINE) |
---|
| 7216 | { |
---|
| 7217 | if(r_write_to_ixr_cmd_write.read()) |
---|
| 7218 | { |
---|
| 7219 | p_vci_ixr.cmd = vci_param::CMD_WRITE; |
---|
| 7220 | p_vci_ixr.cmdval = true; |
---|
| 7221 | p_vci_ixr.address = (addr_t)((r_write_to_ixr_cmd_nline.read() *m_words+r_ixr_cmd_cpt.read()) *4); |
---|
| 7222 | p_vci_ixr.plen = m_words*4; |
---|
| 7223 | p_vci_ixr.wdata = r_write_to_ixr_cmd_data[r_ixr_cmd_cpt.read()].read(); |
---|
| 7224 | p_vci_ixr.trdid = r_write_to_ixr_cmd_trdid.read(); |
---|
| 7225 | p_vci_ixr.eop = (r_ixr_cmd_cpt == (m_words-1)); |
---|
| 7226 | } |
---|
| 7227 | else |
---|
| 7228 | { |
---|
| 7229 | p_vci_ixr.cmd = vci_param::CMD_READ; |
---|
| 7230 | p_vci_ixr.cmdval = true; |
---|
| 7231 | p_vci_ixr.address = (addr_t)(r_write_to_ixr_cmd_nline.read() *m_words*4); |
---|
| 7232 | p_vci_ixr.plen = m_words*4; |
---|
| 7233 | p_vci_ixr.wdata = 0x00000000; |
---|
| 7234 | p_vci_ixr.trdid = r_write_to_ixr_cmd_trdid.read(); |
---|
| 7235 | p_vci_ixr.eop = true; |
---|
| 7236 | } |
---|
| 7237 | } |
---|
| 7238 | else if(r_ixr_cmd_fsm.read() == IXR_CMD_XRAM_DATA) |
---|
| 7239 | { |
---|
| 7240 | p_vci_ixr.cmd = vci_param::CMD_WRITE; |
---|
| 7241 | p_vci_ixr.cmdval = true; |
---|
| 7242 | p_vci_ixr.address = (addr_t)((r_xram_rsp_to_ixr_cmd_nline.read() *m_words+r_ixr_cmd_cpt.read()) *4); |
---|
| 7243 | p_vci_ixr.plen = m_words*4; |
---|
| 7244 | p_vci_ixr.wdata = r_xram_rsp_to_ixr_cmd_data[r_ixr_cmd_cpt.read()].read(); |
---|
| 7245 | p_vci_ixr.trdid = r_xram_rsp_to_ixr_cmd_trdid.read(); |
---|
| 7246 | p_vci_ixr.eop = (r_ixr_cmd_cpt == (m_words-1)); |
---|
| 7247 | } |
---|
| 7248 | else |
---|
| 7249 | { |
---|
| 7250 | p_vci_ixr.cmdval = false; |
---|
| 7251 | p_vci_ixr.address = 0; |
---|
| 7252 | p_vci_ixr.plen = 0; |
---|
| 7253 | p_vci_ixr.wdata = 0; |
---|
| 7254 | p_vci_ixr.trdid = 0; |
---|
| 7255 | p_vci_ixr.eop = false; |
---|
| 7256 | } |
---|
| 7257 | |
---|
| 7258 | //////////////////////////////////////////////////// |
---|
| 7259 | // Response signals on the p_vci_ixr port |
---|
| 7260 | //////////////////////////////////////////////////// |
---|
| 7261 | |
---|
| 7262 | if(((r_alloc_trt_fsm.read() == ALLOC_TRT_IXR_RSP) && |
---|
| 7263 | (r_ixr_rsp_fsm.read() == IXR_RSP_TRT_READ)) || |
---|
| 7264 | (r_ixr_rsp_fsm.read() == IXR_RSP_ACK)) |
---|
| 7265 | |
---|
| 7266 | p_vci_ixr.rspack = true; |
---|
| 7267 | |
---|
| 7268 | else |
---|
| 7269 | p_vci_ixr.rspack = false; |
---|
| 7270 | |
---|
| 7271 | //////////////////////////////////////////////////// |
---|
| 7272 | // Command signals on the p_vci_tgt port |
---|
| 7273 | //////////////////////////////////////////////////// |
---|
| 7274 | |
---|
| 7275 | switch((tgt_cmd_fsm_state_e) r_tgt_cmd_fsm.read()) |
---|
| 7276 | { |
---|
| 7277 | case TGT_CMD_IDLE: |
---|
| 7278 | p_vci_tgt.cmdack = false; |
---|
| 7279 | break; |
---|
| 7280 | |
---|
| 7281 | case TGT_CMD_READ: |
---|
| 7282 | p_vci_tgt.cmdack = m_cmd_read_addr_fifo.wok(); |
---|
| 7283 | break; |
---|
| 7284 | |
---|
| 7285 | case TGT_CMD_WRITE: |
---|
| 7286 | p_vci_tgt.cmdack = m_cmd_write_addr_fifo.wok(); |
---|
| 7287 | break; |
---|
| 7288 | |
---|
| 7289 | case TGT_CMD_CAS: |
---|
| 7290 | p_vci_tgt.cmdack = m_cmd_cas_addr_fifo.wok(); |
---|
| 7291 | break; |
---|
| 7292 | |
---|
| 7293 | default: |
---|
| 7294 | p_vci_tgt.cmdack = false; |
---|
| 7295 | break; |
---|
| 7296 | } |
---|
| 7297 | |
---|
| 7298 | //////////////////////////////////////////////////// |
---|
| 7299 | // Response signals on the p_vci_tgt port |
---|
| 7300 | //////////////////////////////////////////////////// |
---|
[346] | 7301 | |
---|
[331] | 7302 | switch(r_tgt_rsp_fsm.read()) |
---|
| 7303 | { |
---|
| 7304 | case TGT_RSP_READ_IDLE: |
---|
| 7305 | case TGT_RSP_WRITE_IDLE: |
---|
| 7306 | case TGT_RSP_CAS_IDLE: |
---|
| 7307 | case TGT_RSP_XRAM_IDLE: |
---|
| 7308 | case TGT_RSP_INIT_IDLE: |
---|
| 7309 | case TGT_RSP_CLEANUP_IDLE: |
---|
| 7310 | p_vci_tgt.rspval = false; |
---|
| 7311 | p_vci_tgt.rsrcid = 0; |
---|
| 7312 | p_vci_tgt.rdata = 0; |
---|
| 7313 | p_vci_tgt.rpktid = 0; |
---|
| 7314 | p_vci_tgt.rtrdid = 0; |
---|
| 7315 | p_vci_tgt.rerror = 0; |
---|
| 7316 | p_vci_tgt.reop = false; |
---|
| 7317 | break; |
---|
| 7318 | |
---|
| 7319 | case TGT_RSP_READ: |
---|
[362] | 7320 | { |
---|
| 7321 | uint32_t last_word_idx = r_read_to_tgt_rsp_word.read() + r_read_to_tgt_rsp_length - 1; |
---|
| 7322 | bool is_last_word = (r_tgt_rsp_cpt.read() == last_word_idx); |
---|
| 7323 | bool is_ll = ((r_read_to_tgt_rsp_pktid.read() & 0x7) == TYPE_LL); |
---|
| 7324 | |
---|
| 7325 | p_vci_tgt.rspval = true; |
---|
| 7326 | |
---|
| 7327 | if ( is_ll and not r_tgt_rsp_key_sent.read() ) |
---|
| 7328 | { |
---|
| 7329 | // LL response first flit |
---|
| 7330 | p_vci_tgt.rdata = r_read_to_tgt_rsp_ll_key.read(); |
---|
| 7331 | } |
---|
[331] | 7332 | else |
---|
[362] | 7333 | { |
---|
| 7334 | // LL response second flit or READ response |
---|
| 7335 | p_vci_tgt.rdata = r_read_to_tgt_rsp_data[r_tgt_rsp_cpt.read()].read(); |
---|
| 7336 | } |
---|
| 7337 | |
---|
| 7338 | p_vci_tgt.rsrcid = r_read_to_tgt_rsp_srcid.read(); |
---|
| 7339 | p_vci_tgt.rtrdid = r_read_to_tgt_rsp_trdid.read(); |
---|
| 7340 | p_vci_tgt.rpktid = r_read_to_tgt_rsp_pktid.read(); |
---|
| 7341 | p_vci_tgt.rerror = 0; |
---|
| 7342 | p_vci_tgt.reop = (is_last_word and not is_ll) or (r_tgt_rsp_key_sent.read() and is_ll); |
---|
[331] | 7343 | break; |
---|
[362] | 7344 | } |
---|
[331] | 7345 | |
---|
| 7346 | case TGT_RSP_WRITE: |
---|
| 7347 | p_vci_tgt.rspval = true; |
---|
| 7348 | if(((r_write_to_tgt_rsp_pktid.read() & 0x7) == TYPE_SC) && r_write_to_tgt_rsp_sc_fail.read()) |
---|
| 7349 | p_vci_tgt.rdata = 1; |
---|
| 7350 | else |
---|
| 7351 | p_vci_tgt.rdata = 0; |
---|
| 7352 | p_vci_tgt.rsrcid = r_write_to_tgt_rsp_srcid.read(); |
---|
| 7353 | p_vci_tgt.rtrdid = r_write_to_tgt_rsp_trdid.read(); |
---|
| 7354 | p_vci_tgt.rpktid = r_write_to_tgt_rsp_pktid.read(); |
---|
| 7355 | p_vci_tgt.rerror = 0; |
---|
| 7356 | p_vci_tgt.reop = true; |
---|
| 7357 | break; |
---|
| 7358 | |
---|
| 7359 | case TGT_RSP_CLEANUP: |
---|
| 7360 | p_vci_tgt.rspval = true; |
---|
| 7361 | p_vci_tgt.rdata = 0; |
---|
| 7362 | p_vci_tgt.rsrcid = r_cleanup_to_tgt_rsp_srcid.read(); |
---|
| 7363 | p_vci_tgt.rtrdid = r_cleanup_to_tgt_rsp_trdid.read(); |
---|
| 7364 | p_vci_tgt.rpktid = r_cleanup_to_tgt_rsp_pktid.read(); |
---|
| 7365 | p_vci_tgt.rerror = 0; // Can be a CAS rsp |
---|
| 7366 | p_vci_tgt.reop = true; |
---|
| 7367 | break; |
---|
| 7368 | |
---|
| 7369 | case TGT_RSP_CAS: |
---|
| 7370 | p_vci_tgt.rspval = true; |
---|
| 7371 | p_vci_tgt.rdata = r_cas_to_tgt_rsp_data.read(); |
---|
| 7372 | p_vci_tgt.rsrcid = r_cas_to_tgt_rsp_srcid.read(); |
---|
| 7373 | p_vci_tgt.rtrdid = r_cas_to_tgt_rsp_trdid.read(); |
---|
| 7374 | p_vci_tgt.rpktid = r_cas_to_tgt_rsp_pktid.read(); |
---|
| 7375 | p_vci_tgt.rerror = 0; |
---|
| 7376 | p_vci_tgt.reop = true; |
---|
| 7377 | break; |
---|
| 7378 | |
---|
| 7379 | case TGT_RSP_XRAM: |
---|
[362] | 7380 | { |
---|
| 7381 | uint32_t last_word_idx = r_xram_rsp_to_tgt_rsp_word.read() + r_xram_rsp_to_tgt_rsp_length.read() - 1; |
---|
| 7382 | bool is_last_word = (r_tgt_rsp_cpt.read() == last_word_idx); |
---|
| 7383 | bool is_ll = ((r_xram_rsp_to_tgt_rsp_pktid.read() & 0x7) == TYPE_LL); |
---|
| 7384 | bool is_error = r_xram_rsp_to_tgt_rsp_rerror.read(); |
---|
| 7385 | |
---|
| 7386 | p_vci_tgt.rspval = true; |
---|
| 7387 | |
---|
| 7388 | if( is_ll and not r_tgt_rsp_key_sent.read() ) { |
---|
| 7389 | // LL response first flit |
---|
| 7390 | p_vci_tgt.rdata = r_xram_rsp_to_tgt_rsp_ll_key.read(); |
---|
| 7391 | } |
---|
| 7392 | else { |
---|
| 7393 | // LL response second flit or READ response |
---|
| 7394 | p_vci_tgt.rdata = r_xram_rsp_to_tgt_rsp_data[r_tgt_rsp_cpt.read()].read(); |
---|
| 7395 | } |
---|
| 7396 | |
---|
| 7397 | p_vci_tgt.rsrcid = r_xram_rsp_to_tgt_rsp_srcid.read(); |
---|
| 7398 | p_vci_tgt.rtrdid = r_xram_rsp_to_tgt_rsp_trdid.read(); |
---|
| 7399 | p_vci_tgt.rpktid = r_xram_rsp_to_tgt_rsp_pktid.read(); |
---|
| 7400 | p_vci_tgt.rerror = is_error; |
---|
| 7401 | p_vci_tgt.reop = (((is_last_word or is_error) and not is_ll) or |
---|
| 7402 | (r_tgt_rsp_key_sent.read() and is_ll)); |
---|
[331] | 7403 | break; |
---|
[362] | 7404 | } |
---|
[331] | 7405 | |
---|
| 7406 | case TGT_RSP_INIT: |
---|
| 7407 | p_vci_tgt.rspval = true; |
---|
| 7408 | p_vci_tgt.rdata = 0; // Can be a CAS or SC rsp |
---|
| 7409 | p_vci_tgt.rsrcid = r_multi_ack_to_tgt_rsp_srcid.read(); |
---|
| 7410 | p_vci_tgt.rtrdid = r_multi_ack_to_tgt_rsp_trdid.read(); |
---|
| 7411 | p_vci_tgt.rpktid = r_multi_ack_to_tgt_rsp_pktid.read(); |
---|
| 7412 | p_vci_tgt.rerror = 0; |
---|
| 7413 | p_vci_tgt.reop = true; |
---|
| 7414 | break; |
---|
| 7415 | } // end switch r_tgt_rsp_fsm |
---|
| 7416 | |
---|
| 7417 | //////////////////////////////////////////////////////////////////// |
---|
| 7418 | // Initiator command signals on the p_dspin_out port (CC_SEND FSM) |
---|
| 7419 | //////////////////////////////////////////////////////////////////// |
---|
[346] | 7420 | |
---|
[331] | 7421 | p_dspin_out.write = false; |
---|
| 7422 | p_dspin_out.data = 0; |
---|
| 7423 | |
---|
| 7424 | switch(r_cc_send_fsm.read()) |
---|
| 7425 | { |
---|
[346] | 7426 | |
---|
[331] | 7427 | case CC_SEND_XRAM_RSP_IDLE: |
---|
| 7428 | case CC_SEND_WRITE_IDLE: |
---|
| 7429 | case CC_SEND_CAS_IDLE: |
---|
| 7430 | case CC_SEND_CLEANUP_IDLE: |
---|
| 7431 | break; |
---|
| 7432 | |
---|
| 7433 | case CC_SEND_CLEANUP_ACK: |
---|
| 7434 | { |
---|
| 7435 | uint8_t cleanup_ack_type; |
---|
| 7436 | if(r_cleanup_to_cc_send_inst.read()) |
---|
| 7437 | { |
---|
| 7438 | cleanup_ack_type = DspinDhccpParam::TYPE_CLEANUP_ACK_INST; |
---|
| 7439 | } |
---|
| 7440 | else |
---|
| 7441 | { |
---|
| 7442 | cleanup_ack_type = DspinDhccpParam::TYPE_CLEANUP_ACK_DATA; |
---|
| 7443 | } |
---|
| 7444 | |
---|
[367] | 7445 | uint64_t flit = 0; |
---|
| 7446 | uint64_t dest = |
---|
| 7447 | r_cleanup_to_cc_send_srcid.read() << |
---|
| 7448 | (DspinDhccpParam::SRCID_WIDTH - vci_param::S); |
---|
| 7449 | |
---|
[331] | 7450 | DspinDhccpParam::dspin_set( |
---|
| 7451 | flit, |
---|
| 7452 | 1ULL, |
---|
| 7453 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7454 | |
---|
| 7455 | DspinDhccpParam::dspin_set( |
---|
| 7456 | flit, |
---|
[367] | 7457 | dest, |
---|
[331] | 7458 | DspinDhccpParam::CLEANUP_ACK_DEST); |
---|
| 7459 | |
---|
| 7460 | DspinDhccpParam::dspin_set( |
---|
| 7461 | flit, |
---|
| 7462 | r_cleanup_to_cc_send_set_index.read(), |
---|
| 7463 | DspinDhccpParam::CLEANUP_ACK_SET); |
---|
| 7464 | |
---|
| 7465 | DspinDhccpParam::dspin_set( |
---|
| 7466 | flit, |
---|
| 7467 | r_cleanup_to_cc_send_way_index.read(), |
---|
| 7468 | DspinDhccpParam::CLEANUP_ACK_WAY); |
---|
| 7469 | |
---|
| 7470 | DspinDhccpParam::dspin_set( |
---|
| 7471 | flit, |
---|
| 7472 | cleanup_ack_type, |
---|
| 7473 | DspinDhccpParam::FROM_MC_TYPE); |
---|
| 7474 | |
---|
| 7475 | p_dspin_out.write = true; |
---|
| 7476 | p_dspin_out.data = flit; |
---|
| 7477 | |
---|
| 7478 | break; |
---|
| 7479 | } |
---|
| 7480 | |
---|
| 7481 | case CC_SEND_XRAM_RSP_INVAL_HEADER: |
---|
| 7482 | { |
---|
| 7483 | if(not m_xram_rsp_to_cc_send_inst_fifo.rok()) break; |
---|
| 7484 | |
---|
| 7485 | uint8_t multi_inval_type; |
---|
| 7486 | if(m_xram_rsp_to_cc_send_inst_fifo.read()) |
---|
| 7487 | { |
---|
| 7488 | multi_inval_type = DspinDhccpParam::TYPE_MULTI_INVAL_INST; |
---|
| 7489 | } |
---|
| 7490 | else |
---|
| 7491 | { |
---|
| 7492 | multi_inval_type = DspinDhccpParam::TYPE_MULTI_INVAL_DATA; |
---|
| 7493 | } |
---|
| 7494 | |
---|
| 7495 | uint64_t flit = 0; |
---|
[367] | 7496 | uint64_t dest = |
---|
| 7497 | m_xram_rsp_to_cc_send_srcid_fifo.read() << |
---|
| 7498 | (DspinDhccpParam::SRCID_WIDTH - vci_param::S); |
---|
[331] | 7499 | |
---|
| 7500 | DspinDhccpParam::dspin_set( |
---|
| 7501 | flit, |
---|
[367] | 7502 | dest, |
---|
[331] | 7503 | DspinDhccpParam::MULTI_INVAL_DEST); |
---|
| 7504 | |
---|
| 7505 | DspinDhccpParam::dspin_set( |
---|
| 7506 | flit, |
---|
[346] | 7507 | m_cc_global_id, |
---|
[331] | 7508 | DspinDhccpParam::MULTI_INVAL_SRCID); |
---|
| 7509 | |
---|
| 7510 | DspinDhccpParam::dspin_set( |
---|
| 7511 | flit, |
---|
| 7512 | r_xram_rsp_to_cc_send_trdid.read(), |
---|
| 7513 | DspinDhccpParam::MULTI_INVAL_UPDT_INDEX); |
---|
| 7514 | |
---|
| 7515 | DspinDhccpParam::dspin_set( |
---|
| 7516 | flit, |
---|
| 7517 | multi_inval_type, |
---|
| 7518 | DspinDhccpParam::FROM_MC_TYPE); |
---|
| 7519 | |
---|
| 7520 | p_dspin_out.write = true; |
---|
| 7521 | p_dspin_out.data = flit; |
---|
| 7522 | |
---|
| 7523 | break; |
---|
| 7524 | } |
---|
| 7525 | |
---|
| 7526 | case CC_SEND_XRAM_RSP_INVAL_NLINE: |
---|
| 7527 | { |
---|
| 7528 | uint64_t flit = 0; |
---|
| 7529 | |
---|
| 7530 | DspinDhccpParam::dspin_set( |
---|
| 7531 | flit, |
---|
| 7532 | 1ULL, |
---|
| 7533 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7534 | |
---|
| 7535 | DspinDhccpParam::dspin_set( |
---|
| 7536 | flit, |
---|
| 7537 | r_xram_rsp_to_cc_send_nline.read(), |
---|
| 7538 | DspinDhccpParam::MULTI_INVAL_NLINE); |
---|
| 7539 | |
---|
| 7540 | |
---|
| 7541 | p_dspin_out.write = true; |
---|
| 7542 | p_dspin_out.data = flit; |
---|
| 7543 | |
---|
| 7544 | break; |
---|
| 7545 | } |
---|
| 7546 | |
---|
| 7547 | case CC_SEND_XRAM_RSP_BRDCAST_HEADER: |
---|
| 7548 | case CC_SEND_WRITE_BRDCAST_HEADER: |
---|
| 7549 | case CC_SEND_CAS_BRDCAST_HEADER: |
---|
| 7550 | { |
---|
| 7551 | uint64_t flit = 0; |
---|
| 7552 | |
---|
| 7553 | DspinDhccpParam::dspin_set( |
---|
| 7554 | flit, |
---|
| 7555 | m_broadcast_address, |
---|
| 7556 | DspinDhccpParam::BROADCAST_BOX); |
---|
| 7557 | |
---|
| 7558 | DspinDhccpParam::dspin_set( |
---|
| 7559 | flit, |
---|
[346] | 7560 | m_cc_global_id, |
---|
[331] | 7561 | DspinDhccpParam::BROADCAST_SRCID); |
---|
| 7562 | |
---|
| 7563 | DspinDhccpParam::dspin_set( |
---|
| 7564 | flit, |
---|
| 7565 | 1ULL, |
---|
| 7566 | DspinDhccpParam::FROM_MC_BC); |
---|
| 7567 | |
---|
| 7568 | p_dspin_out.write = true; |
---|
| 7569 | p_dspin_out.data = flit; |
---|
| 7570 | |
---|
| 7571 | break; |
---|
| 7572 | } |
---|
| 7573 | |
---|
| 7574 | case CC_SEND_XRAM_RSP_BRDCAST_NLINE: |
---|
| 7575 | { |
---|
| 7576 | uint64_t flit = 0; |
---|
| 7577 | |
---|
| 7578 | DspinDhccpParam::dspin_set( |
---|
| 7579 | flit, |
---|
| 7580 | 1ULL, |
---|
| 7581 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7582 | |
---|
| 7583 | DspinDhccpParam::dspin_set( |
---|
| 7584 | flit, |
---|
| 7585 | r_xram_rsp_to_cc_send_nline.read(), |
---|
| 7586 | DspinDhccpParam::BROADCAST_NLINE); |
---|
| 7587 | |
---|
| 7588 | p_dspin_out.write = true; |
---|
| 7589 | p_dspin_out.data = flit; |
---|
| 7590 | |
---|
| 7591 | break; |
---|
| 7592 | } |
---|
| 7593 | |
---|
| 7594 | case CC_SEND_WRITE_BRDCAST_NLINE: |
---|
| 7595 | { |
---|
| 7596 | uint64_t flit = 0; |
---|
| 7597 | |
---|
| 7598 | DspinDhccpParam::dspin_set( |
---|
| 7599 | flit, |
---|
| 7600 | 1ULL, |
---|
| 7601 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7602 | |
---|
| 7603 | DspinDhccpParam::dspin_set( |
---|
| 7604 | flit, |
---|
| 7605 | r_write_to_cc_send_nline.read(), |
---|
| 7606 | DspinDhccpParam::BROADCAST_NLINE); |
---|
| 7607 | |
---|
| 7608 | p_dspin_out.write = true; |
---|
| 7609 | p_dspin_out.data = flit; |
---|
| 7610 | |
---|
| 7611 | break; |
---|
| 7612 | } |
---|
| 7613 | |
---|
| 7614 | case CC_SEND_CAS_BRDCAST_NLINE: |
---|
| 7615 | { |
---|
| 7616 | uint64_t flit = 0; |
---|
| 7617 | |
---|
| 7618 | DspinDhccpParam::dspin_set( |
---|
| 7619 | flit, |
---|
| 7620 | 1ULL, |
---|
| 7621 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7622 | |
---|
| 7623 | DspinDhccpParam::dspin_set( |
---|
| 7624 | flit, |
---|
| 7625 | r_cas_to_cc_send_nline.read(), |
---|
| 7626 | DspinDhccpParam::BROADCAST_NLINE); |
---|
| 7627 | |
---|
| 7628 | p_dspin_out.write = true; |
---|
| 7629 | p_dspin_out.data = flit; |
---|
| 7630 | |
---|
| 7631 | break; |
---|
| 7632 | } |
---|
| 7633 | |
---|
| 7634 | case CC_SEND_WRITE_UPDT_HEADER: |
---|
| 7635 | { |
---|
| 7636 | if(not m_write_to_cc_send_inst_fifo.rok()) break; |
---|
| 7637 | |
---|
| 7638 | uint8_t multi_updt_type; |
---|
| 7639 | if(m_write_to_cc_send_inst_fifo.read()) |
---|
| 7640 | { |
---|
| 7641 | multi_updt_type = DspinDhccpParam::TYPE_MULTI_UPDT_INST; |
---|
| 7642 | } |
---|
| 7643 | else |
---|
| 7644 | { |
---|
| 7645 | multi_updt_type = DspinDhccpParam::TYPE_MULTI_UPDT_DATA; |
---|
| 7646 | } |
---|
| 7647 | |
---|
| 7648 | uint64_t flit = 0; |
---|
[367] | 7649 | uint64_t dest = |
---|
| 7650 | m_write_to_cc_send_srcid_fifo.read() << |
---|
| 7651 | (DspinDhccpParam::SRCID_WIDTH - vci_param::S); |
---|
[331] | 7652 | |
---|
| 7653 | DspinDhccpParam::dspin_set( |
---|
| 7654 | flit, |
---|
[367] | 7655 | dest, |
---|
[331] | 7656 | DspinDhccpParam::MULTI_UPDT_DEST); |
---|
| 7657 | |
---|
| 7658 | DspinDhccpParam::dspin_set( |
---|
| 7659 | flit, |
---|
[346] | 7660 | m_cc_global_id, |
---|
[331] | 7661 | DspinDhccpParam::MULTI_UPDT_SRCID); |
---|
| 7662 | |
---|
| 7663 | DspinDhccpParam::dspin_set( |
---|
| 7664 | flit, |
---|
| 7665 | r_write_to_cc_send_trdid.read(), |
---|
| 7666 | DspinDhccpParam::MULTI_UPDT_UPDT_INDEX); |
---|
| 7667 | |
---|
| 7668 | DspinDhccpParam::dspin_set( |
---|
| 7669 | flit, |
---|
| 7670 | multi_updt_type, |
---|
| 7671 | DspinDhccpParam::FROM_MC_TYPE); |
---|
| 7672 | |
---|
| 7673 | p_dspin_out.write = true; |
---|
| 7674 | p_dspin_out.data = flit; |
---|
| 7675 | |
---|
| 7676 | break; |
---|
| 7677 | } |
---|
| 7678 | |
---|
| 7679 | case CC_SEND_WRITE_UPDT_NLINE: |
---|
| 7680 | { |
---|
| 7681 | uint64_t flit = 0; |
---|
| 7682 | |
---|
| 7683 | DspinDhccpParam::dspin_set( |
---|
| 7684 | flit, |
---|
| 7685 | r_write_to_cc_send_index.read(), |
---|
| 7686 | DspinDhccpParam::MULTI_UPDT_WORD_INDEX); |
---|
| 7687 | |
---|
| 7688 | DspinDhccpParam::dspin_set( |
---|
| 7689 | flit, |
---|
| 7690 | r_write_to_cc_send_nline.read(), |
---|
| 7691 | DspinDhccpParam::MULTI_UPDT_NLINE); |
---|
| 7692 | |
---|
| 7693 | p_dspin_out.write = true; |
---|
| 7694 | p_dspin_out.data = flit; |
---|
| 7695 | |
---|
| 7696 | break; |
---|
| 7697 | } |
---|
| 7698 | |
---|
| 7699 | case CC_SEND_WRITE_UPDT_DATA: |
---|
| 7700 | { |
---|
| 7701 | uint8_t multi_updt_eop; |
---|
| 7702 | if( r_cc_send_cpt.read() == |
---|
| 7703 | (r_write_to_cc_send_count.read()-1)) |
---|
| 7704 | { |
---|
| 7705 | multi_updt_eop = 1; |
---|
| 7706 | } |
---|
| 7707 | else |
---|
| 7708 | { |
---|
| 7709 | multi_updt_eop = 0; |
---|
| 7710 | } |
---|
| 7711 | |
---|
| 7712 | uint8_t multi_updt_cpt = |
---|
| 7713 | r_cc_send_cpt.read() + r_write_to_cc_send_index.read(); |
---|
| 7714 | |
---|
| 7715 | uint8_t multi_updt_be = r_write_to_cc_send_be[multi_updt_cpt].read(); |
---|
| 7716 | uint32_t multi_updt_data = r_write_to_cc_send_data[multi_updt_cpt].read(); |
---|
| 7717 | |
---|
| 7718 | uint64_t flit = 0; |
---|
| 7719 | |
---|
| 7720 | DspinDhccpParam::dspin_set( |
---|
| 7721 | flit, |
---|
| 7722 | (uint64_t)multi_updt_eop, |
---|
| 7723 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7724 | |
---|
| 7725 | DspinDhccpParam::dspin_set( |
---|
| 7726 | flit, |
---|
| 7727 | multi_updt_be, |
---|
| 7728 | DspinDhccpParam::MULTI_UPDT_BE); |
---|
| 7729 | |
---|
| 7730 | DspinDhccpParam::dspin_set( |
---|
| 7731 | flit, |
---|
| 7732 | multi_updt_data, |
---|
| 7733 | DspinDhccpParam::MULTI_UPDT_DATA); |
---|
| 7734 | |
---|
| 7735 | p_dspin_out.write = true; |
---|
| 7736 | p_dspin_out.data = flit; |
---|
| 7737 | |
---|
| 7738 | break; |
---|
| 7739 | } |
---|
| 7740 | |
---|
| 7741 | case CC_SEND_CAS_UPDT_HEADER: |
---|
| 7742 | { |
---|
| 7743 | if (not m_cas_to_cc_send_inst_fifo.rok()) break; |
---|
| 7744 | |
---|
| 7745 | uint8_t multi_updt_type; |
---|
| 7746 | if(m_cas_to_cc_send_inst_fifo.read()) |
---|
| 7747 | { |
---|
| 7748 | multi_updt_type = DspinDhccpParam::TYPE_MULTI_UPDT_INST; |
---|
| 7749 | } |
---|
| 7750 | else |
---|
| 7751 | { |
---|
| 7752 | multi_updt_type = DspinDhccpParam::TYPE_MULTI_UPDT_DATA; |
---|
| 7753 | } |
---|
| 7754 | |
---|
| 7755 | uint64_t flit = 0; |
---|
[367] | 7756 | uint64_t dest = |
---|
| 7757 | m_cas_to_cc_send_srcid_fifo.read() << |
---|
| 7758 | (DspinDhccpParam::SRCID_WIDTH - vci_param::S); |
---|
[331] | 7759 | |
---|
| 7760 | DspinDhccpParam::dspin_set( |
---|
| 7761 | flit, |
---|
[367] | 7762 | dest, |
---|
[331] | 7763 | DspinDhccpParam::MULTI_UPDT_DEST); |
---|
| 7764 | |
---|
| 7765 | DspinDhccpParam::dspin_set( |
---|
| 7766 | flit, |
---|
[346] | 7767 | m_cc_global_id, |
---|
[331] | 7768 | DspinDhccpParam::MULTI_UPDT_SRCID); |
---|
| 7769 | |
---|
| 7770 | DspinDhccpParam::dspin_set( |
---|
| 7771 | flit, |
---|
| 7772 | r_cas_to_cc_send_trdid.read(), |
---|
| 7773 | DspinDhccpParam::MULTI_UPDT_UPDT_INDEX); |
---|
| 7774 | |
---|
| 7775 | DspinDhccpParam::dspin_set( |
---|
| 7776 | flit, |
---|
| 7777 | multi_updt_type, |
---|
| 7778 | DspinDhccpParam::FROM_MC_TYPE); |
---|
| 7779 | |
---|
| 7780 | p_dspin_out.write = true; |
---|
| 7781 | p_dspin_out.data = flit; |
---|
| 7782 | |
---|
| 7783 | break; |
---|
| 7784 | } |
---|
| 7785 | |
---|
| 7786 | case CC_SEND_CAS_UPDT_NLINE: |
---|
| 7787 | { |
---|
| 7788 | uint64_t flit = 0; |
---|
| 7789 | |
---|
| 7790 | DspinDhccpParam::dspin_set( |
---|
| 7791 | flit, |
---|
| 7792 | r_cas_to_cc_send_index.read(), |
---|
| 7793 | DspinDhccpParam::MULTI_UPDT_WORD_INDEX); |
---|
| 7794 | |
---|
| 7795 | DspinDhccpParam::dspin_set( |
---|
| 7796 | flit, |
---|
| 7797 | r_cas_to_cc_send_nline.read(), |
---|
| 7798 | DspinDhccpParam::MULTI_UPDT_NLINE); |
---|
| 7799 | |
---|
| 7800 | p_dspin_out.write = true; |
---|
| 7801 | p_dspin_out.data = flit; |
---|
| 7802 | |
---|
| 7803 | break; |
---|
| 7804 | } |
---|
| 7805 | |
---|
| 7806 | case CC_SEND_CAS_UPDT_DATA: |
---|
| 7807 | { |
---|
| 7808 | uint8_t multi_updt_eop; |
---|
| 7809 | if(not r_cas_to_cc_send_is_long.read()) |
---|
| 7810 | { |
---|
| 7811 | multi_updt_eop = 1; |
---|
| 7812 | } |
---|
| 7813 | else |
---|
| 7814 | { |
---|
| 7815 | multi_updt_eop = 0; |
---|
| 7816 | } |
---|
| 7817 | |
---|
| 7818 | uint64_t flit = 0; |
---|
| 7819 | |
---|
| 7820 | DspinDhccpParam::dspin_set( |
---|
| 7821 | flit, |
---|
| 7822 | (uint64_t)multi_updt_eop, |
---|
| 7823 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7824 | |
---|
| 7825 | DspinDhccpParam::dspin_set( |
---|
| 7826 | flit, |
---|
| 7827 | 0xF, |
---|
| 7828 | DspinDhccpParam::MULTI_UPDT_BE); |
---|
| 7829 | |
---|
| 7830 | DspinDhccpParam::dspin_set( |
---|
| 7831 | flit, |
---|
| 7832 | r_cas_to_cc_send_wdata.read(), |
---|
| 7833 | DspinDhccpParam::MULTI_UPDT_DATA); |
---|
| 7834 | |
---|
| 7835 | p_dspin_out.write = true; |
---|
| 7836 | p_dspin_out.data = flit; |
---|
| 7837 | |
---|
| 7838 | break; |
---|
| 7839 | } |
---|
| 7840 | |
---|
| 7841 | case CC_SEND_CAS_UPDT_DATA_HIGH: |
---|
| 7842 | { |
---|
| 7843 | uint64_t flit = 0; |
---|
| 7844 | |
---|
| 7845 | DspinDhccpParam::dspin_set( |
---|
| 7846 | flit, |
---|
| 7847 | 1ULL, |
---|
| 7848 | DspinDhccpParam::FROM_MC_EOP); |
---|
| 7849 | |
---|
| 7850 | DspinDhccpParam::dspin_set( |
---|
| 7851 | flit, |
---|
| 7852 | 0xF, |
---|
| 7853 | DspinDhccpParam::MULTI_UPDT_BE); |
---|
| 7854 | |
---|
| 7855 | DspinDhccpParam::dspin_set( |
---|
| 7856 | flit, |
---|
| 7857 | r_cas_to_cc_send_wdata_high.read(), |
---|
| 7858 | DspinDhccpParam::MULTI_UPDT_DATA); |
---|
| 7859 | |
---|
| 7860 | p_dspin_out.write = true; |
---|
| 7861 | p_dspin_out.data = flit; |
---|
| 7862 | |
---|
| 7863 | break; |
---|
| 7864 | } |
---|
| 7865 | } |
---|
| 7866 | |
---|
| 7867 | /////////////////////////////////////////////////////////////////// |
---|
| 7868 | // Target command signals from the p_dspin_in port (CC_RECEIVE FSM) |
---|
| 7869 | /////////////////////////////////////////////////////////////////// |
---|
| 7870 | p_dspin_in.read = false; |
---|
| 7871 | switch(r_cc_receive_fsm.read()) |
---|
| 7872 | { |
---|
| 7873 | case CC_RECEIVE_IDLE: |
---|
| 7874 | { |
---|
| 7875 | break; |
---|
| 7876 | } |
---|
| 7877 | case CC_RECEIVE_CLEANUP: |
---|
| 7878 | { |
---|
| 7879 | p_dspin_in.read = m_cc_receive_to_cleanup_fifo.wok(); |
---|
| 7880 | break; |
---|
| 7881 | } |
---|
| 7882 | case CC_RECEIVE_MULTI_ACK: |
---|
| 7883 | { |
---|
| 7884 | p_dspin_in.read = m_cc_receive_to_multi_ack_fifo.wok(); |
---|
| 7885 | break; |
---|
| 7886 | } |
---|
| 7887 | } |
---|
| 7888 | // end switch r_cc_send_fsm |
---|
| 7889 | } // end genMoore() |
---|
| 7890 | |
---|
| 7891 | } |
---|
| 7892 | } // end name space |
---|
| 7893 | |
---|
| 7894 | // Local Variables: |
---|
| 7895 | // tab-width: 2 |
---|
| 7896 | // c-basic-offset: 2 |
---|
| 7897 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
---|
| 7898 | // indent-tabs-mode: nil |
---|
| 7899 | // End: |
---|
| 7900 | |
---|
| 7901 | // vim: filetype=cpp:expandtab:shiftwidth=2:tabstop=2:softtabstop=2 |
---|