| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: SS_MsyncMemory.cc |
| 4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 6 | // |
| 7 | // The above named program is free software; you can redistribute it and/or |
| 8 | // modify it under the terms of the GNU General Public |
| 9 | // License version 2 as published by the Free Software Foundation. |
| 10 | // |
| 11 | // The above named program is distributed in the hope that it will be |
| 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | // General Public License for more details. |
| 15 | // |
| 16 | // You should have received a copy of the GNU General Public |
| 17 | // License along with this work; if not, write to the Free Software |
| 18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 19 | // |
| 20 | // ========== Copyright Header End ============================================ |
| 21 | |
| 22 | #ifdef MEMORY_MSYNC |
| 23 | |
| 24 | #include <sys/mman.h> |
| 25 | #include <errno.h> |
| 26 | #include <ctype.h> |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <string.h> |
| 30 | #include <assert.h> |
| 31 | #include "SS_MsyncMemory.h" |
| 32 | #include "SS_Strand.h" |
| 33 | #include <exception.h> |
| 34 | |
| 35 | SS_MsyncMemory SS_MsyncMemory::memory; |
| 36 | |
| 37 | SS_MsyncMemory::SS_MsyncMemory()/*{{{*/ |
| 38 | : |
| 39 | SS_FastMemory(), |
| 40 | msync_object(0), |
| 41 | msync_pre_access(0), |
| 42 | msync_post_access(0) |
| 43 | { |
| 44 | } |
| 45 | /*}}}*/ |
| 46 | SS_MsyncMemory::~SS_MsyncMemory()/*{{{*/ |
| 47 | { |
| 48 | } |
| 49 | /*}}}*/ |
| 50 | |
| 51 | |
| 52 | void SS_MsyncMemory::msync_st( uint64_t addr, uint_t size, uint64_t data )/*{{{*/ |
| 53 | { |
| 54 | mem_xact.paddr(addr); |
| 55 | mem_xact.size(size); |
| 56 | mem_xact.access(MemoryTransaction::WRITE); |
| 57 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 58 | mem_xact.setData(data); |
| 59 | |
| 60 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 61 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 62 | } |
| 63 | /*}}}*/ |
| 64 | void SS_MsyncMemory::msync_st( uint64_t addr, uint_t size, uint64_t* data )/*{{{*/ |
| 65 | { |
| 66 | mem_xact.paddr(addr); |
| 67 | mem_xact.size(size); |
| 68 | mem_xact.access(MemoryTransaction::WRITE); |
| 69 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 70 | |
| 71 | for (uint_t i=0; size; i++, size -= 8) |
| 72 | mem_xact.setData(i,data[i]); |
| 73 | |
| 74 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 75 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 76 | } |
| 77 | /*}}}*/ |
| 78 | |
| 79 | uint64_t SS_MsyncMemory::msync_ld( uint64_t addr, uint_t size )/*{{{*/ |
| 80 | { |
| 81 | mem_xact.paddr(addr); |
| 82 | mem_xact.size(size); |
| 83 | mem_xact.access(MemoryTransaction::READ); |
| 84 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 85 | |
| 86 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 87 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 88 | |
| 89 | return mem_xact.getData(); |
| 90 | } |
| 91 | /*}}}*/ |
| 92 | void SS_MsyncMemory::msync_ld( uint64_t addr, uint_t size, uint64_t* data )/*{{{*/ |
| 93 | { |
| 94 | mem_xact.paddr(addr); |
| 95 | mem_xact.size(size); |
| 96 | mem_xact.access(MemoryTransaction::READ); |
| 97 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 98 | |
| 99 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 100 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 101 | |
| 102 | for (uint_t i=0; size; i++, size -= 8) |
| 103 | data[i]= mem_xact.getData(i); |
| 104 | } |
| 105 | /*}}}*/ |
| 106 | |
| 107 | |
| 108 | |
| 109 | uint32_t SS_MsyncMemory::fetch32( uint64_t addr )/*{{{*/ |
| 110 | { |
| 111 | if (msync_object) |
| 112 | { |
| 113 | mem_xact.paddr(addr); |
| 114 | mem_xact.size(4); |
| 115 | mem_xact.access(MemoryTransaction::READ); |
| 116 | mem_xact.referenceType(MemoryTransaction::INSTR); |
| 117 | |
| 118 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 119 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 120 | } |
| 121 | |
| 122 | return SS_FastMemory::fetch32(addr); |
| 123 | } |
| 124 | /*}}}*/ |
| 125 | void SS_MsyncMemory::fetch256( uint64_t addr, uint64_t data[4] )/*{{{*/ |
| 126 | { |
| 127 | if (msync_object) |
| 128 | { |
| 129 | mem_xact.paddr(addr); |
| 130 | mem_xact.size(32); |
| 131 | mem_xact.access(MemoryTransaction::READ); |
| 132 | mem_xact.referenceType(MemoryTransaction::INSTR); |
| 133 | |
| 134 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 135 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 136 | } |
| 137 | |
| 138 | SS_FastMemory::fetch256(addr,data); |
| 139 | } |
| 140 | /*}}}*/ |
| 141 | void SS_MsyncMemory::fetch512( uint64_t addr, uint64_t data[8] )/*{{{*/ |
| 142 | { |
| 143 | if (msync_object) |
| 144 | { |
| 145 | mem_xact.paddr(addr); |
| 146 | mem_xact.size(64); |
| 147 | mem_xact.access(MemoryTransaction::READ); |
| 148 | mem_xact.referenceType(MemoryTransaction::INSTR); |
| 149 | |
| 150 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 151 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 152 | } |
| 153 | |
| 154 | SS_FastMemory::fetch512(addr,data); |
| 155 | } |
| 156 | /*}}}*/ |
| 157 | |
| 158 | void SS_MsyncMemory::st8( uint64_t addr, uint8_t data )/*{{{*/ |
| 159 | { |
| 160 | if (msync_object) |
| 161 | msync_st(addr,1,data); |
| 162 | else |
| 163 | SS_FastMemory::st8(addr,data); |
| 164 | } |
| 165 | /*}}}*/ |
| 166 | void SS_MsyncMemory::st16( uint64_t addr, uint16_t data )/*{{{*/ |
| 167 | { |
| 168 | if (msync_object) |
| 169 | msync_st(addr,2,data); |
| 170 | else |
| 171 | SS_FastMemory::st16(addr,data); |
| 172 | } |
| 173 | /*}}}*/ |
| 174 | void SS_MsyncMemory::st32( uint64_t addr, uint32_t data )/*{{{*/ |
| 175 | { |
| 176 | if (msync_object) |
| 177 | msync_st(addr,4,data); |
| 178 | else |
| 179 | SS_FastMemory::st32(addr,data); |
| 180 | } |
| 181 | /*}}}*/ |
| 182 | void SS_MsyncMemory::st64( uint64_t addr, uint64_t data )/*{{{*/ |
| 183 | { |
| 184 | if (msync_object) |
| 185 | msync_st(addr,8,data); |
| 186 | else |
| 187 | SS_FastMemory::st64(addr,data); |
| 188 | } |
| 189 | /*}}}*/ |
| 190 | void SS_MsyncMemory::st128( uint64_t addr, uint64_t data[2] )/*{{{*/ |
| 191 | { |
| 192 | if (msync_object) |
| 193 | msync_st(addr,16,data); |
| 194 | else |
| 195 | { |
| 196 | SS_FastMemory::st128(addr,data); |
| 197 | } |
| 198 | } |
| 199 | /*}}}*/ |
| 200 | void SS_MsyncMemory::st512( uint64_t addr, uint64_t data[8] )/*{{{*/ |
| 201 | { |
| 202 | if (msync_object) |
| 203 | msync_st(addr,64,data); |
| 204 | else |
| 205 | { |
| 206 | SS_FastMemory::st512(addr,data); |
| 207 | } |
| 208 | } |
| 209 | /*}}}*/ |
| 210 | |
| 211 | uint8_t SS_MsyncMemory::ld8u ( uint64_t addr )/*{{{*/ |
| 212 | { |
| 213 | if (msync_object) |
| 214 | return msync_ld(addr,1); |
| 215 | else |
| 216 | return SS_FastMemory::ld8u(addr); |
| 217 | } |
| 218 | /*}}}*/ |
| 219 | int8_t SS_MsyncMemory::ld8s( uint64_t addr )/*{{{*/ |
| 220 | { |
| 221 | if (msync_object) |
| 222 | return msync_ld(addr,1); |
| 223 | else |
| 224 | return SS_FastMemory::ld8s(addr); |
| 225 | } |
| 226 | /*}}}*/ |
| 227 | uint16_t SS_MsyncMemory::ld16u( uint64_t addr )/*{{{*/ |
| 228 | { |
| 229 | if (msync_object) |
| 230 | return msync_ld(addr,2); |
| 231 | else |
| 232 | return SS_FastMemory::ld16u(addr); |
| 233 | } |
| 234 | /*}}}*/ |
| 235 | int16_t SS_MsyncMemory::ld16s( uint64_t addr )/*{{{*/ |
| 236 | { |
| 237 | if (msync_object) |
| 238 | return msync_ld(addr,2); |
| 239 | else |
| 240 | return SS_FastMemory::ld16s(addr); |
| 241 | } |
| 242 | /*}}}*/ |
| 243 | uint32_t SS_MsyncMemory::ld32u( uint64_t addr )/*{{{*/ |
| 244 | { |
| 245 | if (msync_object) |
| 246 | return msync_ld(addr,4); |
| 247 | else |
| 248 | return SS_FastMemory::ld32u(addr); |
| 249 | } |
| 250 | /*}}}*/ |
| 251 | int32_t SS_MsyncMemory::ld32s( uint64_t addr )/*{{{*/ |
| 252 | { |
| 253 | if (msync_object) |
| 254 | return msync_ld(addr,4); |
| 255 | else |
| 256 | return SS_FastMemory::ld32s(addr); |
| 257 | } |
| 258 | /*}}}*/ |
| 259 | uint64_t SS_MsyncMemory::ld64( uint64_t addr )/*{{{*/ |
| 260 | { |
| 261 | if (msync_object) |
| 262 | return msync_ld(addr,8); |
| 263 | else |
| 264 | return SS_FastMemory::ld64(addr); |
| 265 | } |
| 266 | /*}}}*/ |
| 267 | void SS_MsyncMemory::ld128( uint64_t addr, uint64_t data[2] ) /*{{{*/ |
| 268 | { |
| 269 | if (msync_object) |
| 270 | msync_ld(addr,16,data); |
| 271 | else |
| 272 | { |
| 273 | SS_FastMemory::ld128(addr,data); |
| 274 | } |
| 275 | } |
| 276 | /*}}}*/ |
| 277 | void SS_MsyncMemory::ld256( uint64_t addr, uint64_t data[4] )/*{{{*/ |
| 278 | { |
| 279 | if (msync_object) |
| 280 | msync_ld(addr,32,data); |
| 281 | else |
| 282 | { |
| 283 | SS_FastMemory::ld256(addr,data); |
| 284 | } |
| 285 | } |
| 286 | /*}}}*/ |
| 287 | void SS_MsyncMemory::ld512( uint64_t addr, uint64_t data[8] )/*{{{*/ |
| 288 | { |
| 289 | if (msync_object) |
| 290 | msync_ld(addr,64,data); |
| 291 | else |
| 292 | { |
| 293 | SS_FastMemory::ld512(addr,data); |
| 294 | } |
| 295 | } |
| 296 | /*}}}*/ |
| 297 | |
| 298 | void SS_MsyncMemory::st64partial( uint64_t addr, uint64_t data, uint64_t mask ) /*{{{*/ |
| 299 | { |
| 300 | if (msync_object) |
| 301 | { |
| 302 | uint64_t temp = peek64(addr); |
| 303 | |
| 304 | if (mask < 0x100) |
| 305 | { |
| 306 | uint64_t data_mask = 0x0; |
| 307 | for(int i=0; i < 0x8; i++) |
| 308 | if((mask >> i) & 0x1) |
| 309 | data_mask |= (0xffULL << (0x8 * i)); |
| 310 | data = (temp & ~data_mask) | (data & data_mask); |
| 311 | } |
| 312 | st64(addr,data); |
| 313 | } |
| 314 | else |
| 315 | SS_FastMemory::st64partial(addr,data,mask); |
| 316 | } |
| 317 | /*}}}*/ |
| 318 | |
| 319 | void SS_MsyncMemory::ld128atomic( uint64_t addr, uint64_t data[2] )/*{{{*/ |
| 320 | { |
| 321 | if (msync_object && (msync_help == NONE)) |
| 322 | msync_ld(addr,16,data); |
| 323 | else |
| 324 | { |
| 325 | SS_FastMemory::ld128atomic(addr,data); |
| 326 | } |
| 327 | } |
| 328 | /*}}}*/ |
| 329 | |
| 330 | uint8_t SS_MsyncMemory::ldstub( uint64_t addr )/*{{{*/ |
| 331 | { |
| 332 | if (msync_object) |
| 333 | { |
| 334 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 335 | mem_xact.paddr(addr); |
| 336 | mem_xact.size(1); |
| 337 | mem_xact.access(MemoryTransaction::READ|MemoryTransaction::ATOMIC); |
| 338 | |
| 339 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 340 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 341 | |
| 342 | uint8_t data = mem_xact.getData(); |
| 343 | mem_xact.access(MemoryTransaction::WRITE|MemoryTransaction::ATOMIC); |
| 344 | mem_xact.setData(0xff); |
| 345 | |
| 346 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 347 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 348 | |
| 349 | return data; |
| 350 | } |
| 351 | else |
| 352 | return SS_FastMemory::ldstub( addr ); |
| 353 | } |
| 354 | /*}}}*/ |
| 355 | uint32_t SS_MsyncMemory::swap( uint64_t addr, uint32_t rd )/*{{{*/ |
| 356 | { |
| 357 | if (msync_object) |
| 358 | { |
| 359 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 360 | mem_xact.paddr(addr); |
| 361 | mem_xact.size(4); |
| 362 | mem_xact.access(MemoryTransaction::READ|MemoryTransaction::ATOMIC); |
| 363 | |
| 364 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 365 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 366 | |
| 367 | uint32_t data = mem_xact.getData(); |
| 368 | mem_xact.access(MemoryTransaction::WRITE|MemoryTransaction::ATOMIC); |
| 369 | mem_xact.setData(rd); |
| 370 | |
| 371 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 372 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 373 | |
| 374 | return data; |
| 375 | } |
| 376 | else |
| 377 | return SS_FastMemory::swap( addr,rd ); |
| 378 | } |
| 379 | /*}}}*/ |
| 380 | uint64_t SS_MsyncMemory::casx( uint64_t addr, uint64_t rd, uint64_t rs2 )/*{{{*/ |
| 381 | { |
| 382 | if (msync_object) |
| 383 | { |
| 384 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 385 | mem_xact.paddr(addr); |
| 386 | mem_xact.size(8); |
| 387 | mem_xact.access(MemoryTransaction::READ|MemoryTransaction::ATOMIC); |
| 388 | |
| 389 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 390 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 391 | |
| 392 | uint64_t data = mem_xact.getData(); |
| 393 | if (data == rs2) |
| 394 | { |
| 395 | mem_xact.setData(rd); |
| 396 | |
| 397 | mem_xact.access(MemoryTransaction::WRITE|MemoryTransaction::ATOMIC); |
| 398 | |
| 399 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 400 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 401 | } |
| 402 | return data; |
| 403 | } |
| 404 | else |
| 405 | return SS_FastMemory::casx( addr,rd ,rs2); |
| 406 | } |
| 407 | /*}}}*/ |
| 408 | uint32_t SS_MsyncMemory::cas( uint64_t addr, uint32_t rd, uint32_t rs2 )/*{{{*/ |
| 409 | { |
| 410 | if (msync_object) |
| 411 | { |
| 412 | mem_xact.referenceType(MemoryTransaction::DATA); |
| 413 | mem_xact.paddr(addr); |
| 414 | mem_xact.size(4); |
| 415 | mem_xact.access(MemoryTransaction::READ|MemoryTransaction::ATOMIC); |
| 416 | |
| 417 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 418 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 419 | |
| 420 | uint32_t data = mem_xact.getData(); |
| 421 | if (data == rs2) |
| 422 | { |
| 423 | mem_xact.setData(rd); |
| 424 | |
| 425 | mem_xact.access(MemoryTransaction::WRITE|MemoryTransaction::ATOMIC); |
| 426 | |
| 427 | try { msync_pre_access(msync_object,mem_xact); } catch (exception &e) {} |
| 428 | try { msync_post_access(msync_object,mem_xact); } catch (exception &e) {} |
| 429 | } |
| 430 | return data; |
| 431 | } |
| 432 | else |
| 433 | return SS_FastMemory::cas( addr,rd ,rs2); |
| 434 | } |
| 435 | /*}}}*/ |
| 436 | |
| 437 | #endif /* MEMORY_MSYNC */ |
| 438 | |