[2] | 1 | /////////////////////////////////////////////////////////////////////////// |
---|
| 2 | // File : soclib_segment_table.h |
---|
| 3 | // Date : 08/07/2004 |
---|
| 4 | // authors : François Pécheux & Alain Greiner |
---|
| 5 | // |
---|
| 6 | // Copyright : UPMC - LIP6 |
---|
| 7 | // This program is released under the GNU public license |
---|
| 8 | // |
---|
| 9 | // This object is used to describe the memory mapping and address |
---|
| 10 | // decoding scheme. It supports a two level hierarchical interconnect : |
---|
| 11 | // All VCI initiators and VCI targets share the same address space. |
---|
| 12 | // - Several sub-systems can be interconnected thanks to a VCI ADVANCED |
---|
| 13 | // global interconnect that can be either a micro-network, or a global system bus. |
---|
| 14 | // - Each sub-system can contain as many targets as the LSB size allows. |
---|
| 15 | // They are connected by a VCI ADVANCED local interconnect, that can be |
---|
| 16 | // a local bus, or a VCI to VCI bridge such as the TARGET_DEMUX |
---|
| 17 | // and INITIATOR_MUX components of the SoCLib library. |
---|
| 18 | // |
---|
| 19 | // The VCI ADDRESS is structured as follows (three fields): | MSB | LSB | OFFSET | |
---|
| 20 | // The MSB bits of the VCI ADDRESS are decoded by the global interconnect |
---|
| 21 | // to route a VCI CMD/RSP packet to a given sub-system. |
---|
| 22 | // In each sub-system, the LSB bits of the VCI ADDRESS are decoded by the |
---|
| 23 | // local interconnect to route the a VCI CMD/RSP packet to the selected target/initiator. |
---|
| 24 | // |
---|
| 25 | // If the number of bits of the LSB field is zero, a global "flat" interconnect |
---|
| 26 | // is used, and both the VCI target index and the VCI initiator index are coded |
---|
| 27 | // on 8 bits. |
---|
| 28 | // |
---|
| 29 | // The segment table is an associative table that is organized as a |
---|
| 30 | // list of segments. This table must be built in the system top cell. |
---|
| 31 | // |
---|
| 32 | // Each segment descriptor contains the following fields: |
---|
| 33 | // |
---|
| 34 | // - const char *name : segment name |
---|
| 35 | // - unsigned int base : base address |
---|
| 36 | // - unsigned int size : segment size (in bytes) |
---|
| 37 | // - unsigned int globalindex : VCI subsystem index |
---|
| 38 | // - unsigned int localindex : VCI target index in the subsystem |
---|
| 39 | // - bool uncached : uncached when true |
---|
| 40 | // |
---|
| 41 | // The constraints on the memory mapping are the following : |
---|
| 42 | // |
---|
| 43 | // 1/ The system designer must define the number of bits for the address |
---|
| 44 | // MSB and LSB fields. Both numbers can be zero. (For example the number |
---|
| 45 | // of LSB bits will be zero, in case of a "flat" VCI interconnect). |
---|
| 46 | // |
---|
| 47 | // 2/ The (MSB | LSB) bits are indexing a "page" in the address space. |
---|
| 48 | // Several pages can be mapped to the same VCI target. |
---|
| 49 | // |
---|
| 50 | // 3/ A segment is allocated to a VCI target, and must be contained in |
---|
| 51 | // a single page or in several contiguous pages. |
---|
| 52 | // |
---|
| 53 | // 4/ Several segments can be mapped to the same VCI target |
---|
| 54 | // (thanks to the SOCLIB_VCI_MULTIRAM component) |
---|
| 55 | // |
---|
| 56 | // 5/ A given page cannot contain two segments that are not |
---|
| 57 | // mapped to the same VCI target. |
---|
| 58 | // |
---|
| 59 | // The segment table is used by most SoCLib components : |
---|
| 60 | // |
---|
| 61 | // - The constructors of the VCI interconnect components can use it to build |
---|
| 62 | // the ROMs implementing the routing tables |
---|
| 63 | // - The constructors of all VCI targets use it to implement the segmentation |
---|
| 64 | // violation detection mechanism, and allocate the buffers representing |
---|
| 65 | // the memory in case of an embedded memory component. |
---|
| 66 | // - The constructors of several processors (MIPS, SPARC) use it to build |
---|
| 67 | // the ROM implementing the uncached table. |
---|
| 68 | /////////////////////////////////////////////////////////////////////////// |
---|
| 69 | |
---|
| 70 | #ifndef SEGMENT_TABLE_H |
---|
| 71 | #define SEGMENT_TABLE_H |
---|
| 72 | |
---|
| 73 | #include <list> |
---|
[81] | 74 | #include <iostream> |
---|
| 75 | // using namespace std; |
---|
[2] | 76 | |
---|
| 77 | ////////////////////////////////////////////// |
---|
| 78 | // SEGMENT_TABLE_ENTRY definition |
---|
| 79 | ////////////////////////////////////////////// |
---|
| 80 | |
---|
| 81 | struct SEGMENT_TABLE_ENTRY |
---|
| 82 | { |
---|
| 83 | |
---|
| 84 | private: |
---|
| 85 | |
---|
| 86 | const char *name; |
---|
| 87 | unsigned int base; |
---|
| 88 | unsigned int size; |
---|
| 89 | unsigned int globalTarget; |
---|
| 90 | unsigned int localTarget; |
---|
| 91 | bool uncached ; |
---|
| 92 | //-----[ SIM2OS - begin ]----------------------------------------- |
---|
| 93 | void * addr_alloc; |
---|
| 94 | //-----[ SIM2OS - end ]----------------------------------------- |
---|
| 95 | |
---|
| 96 | public: |
---|
| 97 | |
---|
| 98 | // constructor |
---|
| 99 | |
---|
| 100 | SEGMENT_TABLE_ENTRY(const char *nm , |
---|
| 101 | unsigned int ba , |
---|
| 102 | unsigned int sz , |
---|
| 103 | unsigned int glt, |
---|
| 104 | unsigned int lct, |
---|
| 105 | bool unc |
---|
| 106 | ) |
---|
| 107 | { |
---|
| 108 | name=nm; |
---|
| 109 | base=ba; |
---|
| 110 | size=sz; |
---|
| 111 | globalTarget=glt; |
---|
| 112 | localTarget=lct; |
---|
| 113 | uncached=unc; |
---|
| 114 | //-----[ SIM2OS - begin ]----------------------------------------- |
---|
| 115 | addr_alloc = (void *) 0; |
---|
| 116 | //-----[ SIM2OS - end ]----------------------------------------- |
---|
| 117 | }; // end constructor |
---|
| 118 | |
---|
| 119 | // basic methods |
---|
| 120 | |
---|
| 121 | void print() |
---|
| 122 | { |
---|
[138] | 123 | printf(" * [%s]\n", name); |
---|
| 124 | printf(" * base = %.8x, size = %.8x, Global target = %d, Local Target = %d, unc = %d, addr_alloc : %.8x\n", |
---|
| 125 | base, |
---|
| 126 | size, |
---|
| 127 | globalTarget, |
---|
| 128 | localTarget, |
---|
| 129 | uncached, |
---|
| 130 | (unsigned int)((long long)addr_alloc)); |
---|
| 131 | |
---|
[2] | 132 | }; |
---|
| 133 | |
---|
| 134 | const char *getName() |
---|
| 135 | { |
---|
| 136 | return name; |
---|
| 137 | }; |
---|
| 138 | |
---|
| 139 | unsigned int getBase() |
---|
| 140 | { |
---|
| 141 | return base; |
---|
| 142 | }; |
---|
| 143 | |
---|
| 144 | unsigned int getSize() |
---|
| 145 | { |
---|
| 146 | return size; |
---|
| 147 | }; |
---|
| 148 | |
---|
| 149 | unsigned int getGlobalTarget() |
---|
| 150 | { |
---|
| 151 | return globalTarget; |
---|
| 152 | }; |
---|
| 153 | |
---|
| 154 | unsigned int getLocalTarget() |
---|
| 155 | { |
---|
| 156 | return localTarget; |
---|
| 157 | }; |
---|
| 158 | |
---|
| 159 | bool getUncached() |
---|
| 160 | { |
---|
| 161 | return uncached; |
---|
| 162 | }; |
---|
| 163 | |
---|
| 164 | //-----[ SIM2OS - begin ]----------------------------------------- |
---|
| 165 | void * getAddrAlloc() |
---|
| 166 | { |
---|
| 167 | return addr_alloc; |
---|
| 168 | } |
---|
| 169 | |
---|
| 170 | void setAddrAlloc (void * addr) |
---|
| 171 | { |
---|
| 172 | addr_alloc = addr; |
---|
| 173 | } |
---|
| 174 | //-----[ SIM2OS - end ]----------------------------------------- |
---|
| 175 | |
---|
| 176 | };// end struct SEGMENT_TABLE_ENTRY |
---|
| 177 | |
---|
| 178 | |
---|
| 179 | ////////////////////////////////////////////////////////// |
---|
| 180 | // SegmentTable definition |
---|
| 181 | ////////////////////////////////////////////////////////// |
---|
| 182 | |
---|
[81] | 183 | // using namespace std; |
---|
[2] | 184 | |
---|
| 185 | struct SOCLIB_SEGMENT_TABLE { |
---|
| 186 | |
---|
| 187 | private : |
---|
| 188 | |
---|
| 189 | std::list<SEGMENT_TABLE_ENTRY> segList; |
---|
| 190 | int MSBNumber; |
---|
| 191 | int LSBNumber; |
---|
| 192 | unsigned int defaultTargetGlobalIndex; |
---|
| 193 | unsigned int defaultTargetLocalIndex; |
---|
| 194 | bool MSBNumberCalled; |
---|
| 195 | bool defaultTargetCalled; |
---|
| 196 | bool LSBNumberCalled; |
---|
| 197 | |
---|
| 198 | public : |
---|
| 199 | |
---|
| 200 | // CONSTRUCTOR |
---|
| 201 | |
---|
| 202 | SOCLIB_SEGMENT_TABLE() |
---|
| 203 | { |
---|
| 204 | MSBNumberCalled=false; |
---|
| 205 | LSBNumberCalled=false; |
---|
| 206 | defaultTargetCalled=false; |
---|
| 207 | }; // end constructor |
---|
| 208 | |
---|
| 209 | // BASIC METHODS |
---|
| 210 | |
---|
| 211 | void setMSBNumber (int number) |
---|
| 212 | { |
---|
| 213 | if ((number<0)||(number>16)) |
---|
| 214 | { |
---|
[81] | 215 | std::cerr << "ERROR in the Segment Table :" << std::endl ; |
---|
| 216 | std::cerr << "MSB number must be in the [0..16] range !" << std::endl ; |
---|
[2] | 217 | //sc_stop(); |
---|
| 218 | } |
---|
| 219 | MSBNumberCalled=true; |
---|
| 220 | MSBNumber=number; |
---|
| 221 | }; |
---|
| 222 | |
---|
| 223 | void setLSBNumber (int number) |
---|
| 224 | { |
---|
| 225 | if ((number<0)||(number>16)) |
---|
| 226 | { |
---|
[81] | 227 | std::cerr << "ERROR in the Segment Table :" << std::endl ; |
---|
| 228 | std::cerr << "LSB number must be in the [0..16] range !" << std::endl ; |
---|
[2] | 229 | //sc_stop(); |
---|
| 230 | } |
---|
| 231 | LSBNumberCalled=true; |
---|
| 232 | LSBNumber=number; |
---|
| 233 | }; |
---|
| 234 | |
---|
| 235 | int getMSBNumber() |
---|
| 236 | { |
---|
| 237 | return MSBNumber; |
---|
| 238 | }; |
---|
| 239 | |
---|
| 240 | int getLSBNumber() |
---|
| 241 | { |
---|
| 242 | return LSBNumber; |
---|
| 243 | }; |
---|
| 244 | |
---|
| 245 | void setDefaultTarget (int _defTargetGlobalIndex , int _defTargetLocalIndex) |
---|
| 246 | { |
---|
| 247 | defaultTargetCalled=true; |
---|
| 248 | defaultTargetGlobalIndex=_defTargetGlobalIndex; |
---|
| 249 | defaultTargetLocalIndex=_defTargetLocalIndex; |
---|
| 250 | }; |
---|
| 251 | |
---|
| 252 | int getdefaultTargetGlobalIndex() |
---|
| 253 | { |
---|
| 254 | return defaultTargetGlobalIndex; |
---|
| 255 | }; |
---|
| 256 | |
---|
| 257 | int getdefaultTargetLocalIndex() |
---|
| 258 | { |
---|
| 259 | return defaultTargetLocalIndex; |
---|
| 260 | }; |
---|
| 261 | |
---|
| 262 | void addSegment(const char *nm, |
---|
| 263 | unsigned int ba, |
---|
| 264 | unsigned int sz, |
---|
| 265 | unsigned int glt, |
---|
| 266 | unsigned int lct, |
---|
| 267 | bool unc) |
---|
| 268 | { |
---|
| 269 | SEGMENT_TABLE_ENTRY *seg=new SEGMENT_TABLE_ENTRY(nm,ba,sz,glt,lct,unc); |
---|
| 270 | segList.push_back(*seg); |
---|
| 271 | delete seg; |
---|
| 272 | }; |
---|
| 273 | |
---|
| 274 | //-----[ SIM2OS - begin ]----------------------------------------- |
---|
| 275 | void setAddrAlloc(unsigned int ba , |
---|
| 276 | void * addr) |
---|
| 277 | { |
---|
| 278 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
---|
| 279 | // Scan of all list |
---|
| 280 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) |
---|
| 281 | { |
---|
| 282 | // Find a entry match with number of base |
---|
| 283 | // NOTE : The memory is shared, also we can't have 2 segment with the same base |
---|
| 284 | if (ba == (*segIterator).getBase ()) |
---|
| 285 | { |
---|
| 286 | (*segIterator).setAddrAlloc(addr); |
---|
| 287 | } |
---|
| 288 | } |
---|
| 289 | }; |
---|
| 290 | |
---|
| 291 | void * getAddrAlloc(unsigned int addr) |
---|
| 292 | { |
---|
| 293 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
---|
| 294 | |
---|
| 295 | // Scan of all list |
---|
| 296 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) |
---|
| 297 | { |
---|
| 298 | unsigned int addr_min = (*segIterator).getBase (); |
---|
| 299 | unsigned int addr_max = addr_min + (*segIterator).getSize (); |
---|
| 300 | |
---|
| 301 | if ((addr >= addr_min) && (addr <= addr_max)) |
---|
| 302 | { |
---|
| 303 | unsigned int offset = (addr-addr_min); |
---|
[88] | 304 | return (void*)((unsigned int)(long long)((*segIterator).getAddrAlloc()) + offset); |
---|
[2] | 305 | } |
---|
| 306 | } |
---|
| 307 | return NULL; |
---|
| 308 | } |
---|
| 309 | //-----[ SIM2OS - end ]----------------------------------------- |
---|
| 310 | |
---|
| 311 | void print() |
---|
| 312 | { |
---|
[138] | 313 | std::cout << "{SEGMENT_TABLE}"<< std::endl; |
---|
| 314 | std::list<SEGMENT_TABLE_ENTRY>::iterator iter; |
---|
| 315 | for (iter = segList.begin() ; iter != segList.end() ; ++iter) |
---|
| 316 | { |
---|
| 317 | (*iter).print(); |
---|
| 318 | } |
---|
| 319 | std::cout << std::endl; |
---|
[2] | 320 | } |
---|
| 321 | |
---|
| 322 | void printMSBRoutingTable() |
---|
| 323 | { |
---|
[81] | 324 | std::cout << "\n MSB ROUTING_TABLE\n\n" ; |
---|
| 325 | int size = 1 << MSBNumber+LSBNumber; |
---|
| 326 | unsigned int *tab = new unsigned int[size]; |
---|
| 327 | initRoutingTable(tab); |
---|
| 328 | for(int index = 0 ; index < size ; index++) { |
---|
| 329 | if (tab[index]!=0xFFFFFFFF){ |
---|
| 330 | printf("TAB[%x] = %d\n", index, tab[index]); |
---|
| 331 | } |
---|
| 332 | } |
---|
| 333 | std::cout << "\n" ; |
---|
[2] | 334 | }; |
---|
[81] | 335 | |
---|
| 336 | void printLSBRoutingTable(int glt) |
---|
| 337 | { |
---|
| 338 | printf( "\n LSB_ROUTING_TABLE OF GLOBAL TARGET :%d \n\n", glt ); |
---|
| 339 | int size = 1 << MSBNumber+LSBNumber; |
---|
| 340 | unsigned int *tab = new unsigned int[size]; |
---|
| 341 | initLocalRoutingTable(tab,glt); |
---|
| 342 | for(int index = 0 ; index < size ; index++) { |
---|
| 343 | if (tab[index]!=0xFFFFFFFF){ |
---|
| 344 | printf("TAB[%d] = %d\n", index, tab[index]); |
---|
| 345 | } |
---|
| 346 | } |
---|
| 347 | std::cout << "\n" ; |
---|
| 348 | }; |
---|
[2] | 349 | |
---|
| 350 | |
---|
| 351 | |
---|
| 352 | void initRoutingTable(unsigned int* tab) { |
---|
| 353 | if (MSBNumberCalled==false) { |
---|
[81] | 354 | std::cerr << "ERROR in initMSBRoutingTable:" << std::endl ; |
---|
| 355 | std::cerr << "MSB number has not been defined !" << std::endl ; |
---|
[2] | 356 | //sc_stop(); |
---|
| 357 | } |
---|
| 358 | if (LSBNumberCalled==false) { |
---|
[81] | 359 | std::cout << "WARNING in initMSBRoutingTable:" << std::endl ; |
---|
| 360 | std::cout << "LSB number has not been defined !" << std::endl ; |
---|
| 361 | std::cout << "it is set to 0" << std::endl ; |
---|
| 362 | LSBNumberCalled=true; |
---|
| 363 | LSBNumber=0; |
---|
[2] | 364 | } |
---|
| 365 | |
---|
| 366 | |
---|
| 367 | if (defaultTargetCalled==false) { |
---|
[81] | 368 | std::cerr << "ERROR in initMSBRoutingTable:" << std::endl ; |
---|
| 369 | std::cerr << "Default Target has not been defined!" << std::endl ; |
---|
[2] | 370 | //sc_stop(); |
---|
| 371 | } |
---|
| 372 | |
---|
| 373 | int RoutingTableSize = 1 << MSBNumber+LSBNumber; |
---|
| 374 | int PageSize = 1 << (32 - MSBNumber - LSBNumber); |
---|
| 375 | |
---|
| 376 | // The 0xFFFFFFFF value means "not allocated" |
---|
| 377 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 378 | tab[i] = 0xFFFFFFFF; |
---|
| 379 | } |
---|
| 380 | // printf ( " tableau rempli de 0xFFFFFFFF \n"); |
---|
| 381 | |
---|
| 382 | // loop on the segment list |
---|
| 383 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
---|
| 384 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
---|
| 385 | const char *name = (*seg).getName(); |
---|
| 386 | unsigned int base = (*seg).getBase(); |
---|
| 387 | unsigned int size = (*seg).getSize(); |
---|
| 388 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
---|
| 389 | |
---|
| 390 | unsigned int page = base >> (32-MSBNumber - LSBNumber) ; |
---|
| 391 | |
---|
| 392 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
---|
| 393 | if(tab[page] != 0xFFFFFFFF) { |
---|
| 394 | // printf("\n page n° %x can not be added to cluster %x because it is already allocated to %x\n",page,globalTarget,tab[page]); |
---|
[81] | 395 | std::cerr << "Error in initMSBRoutingTable:" << std::endl ; |
---|
| 396 | std::cerr << "Segment " << name << " allocated to VCI target " << globalTarget << std::endl; |
---|
| 397 | std::cerr << "overlap another segment... or is in the same page" << std::endl; |
---|
| 398 | std::cerr << "as another segment allocated to another VCI target" << std::endl; |
---|
[2] | 399 | //sc_stop(); |
---|
| 400 | } else { |
---|
| 401 | tab[page]=globalTarget; |
---|
| 402 | |
---|
| 403 | // printf("\n page n° %x allocated to cluster °%x i.e %s \n",page,tab[page],name); |
---|
| 404 | } |
---|
| 405 | page = page + 1; |
---|
| 406 | } // end for x |
---|
| 407 | } // end for seg |
---|
| 408 | |
---|
| 409 | // Default target |
---|
| 410 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 411 | if(tab[i] == 0xFFFFFFFF) tab[i] = defaultTargetGlobalIndex; |
---|
| 412 | } |
---|
| 413 | |
---|
| 414 | }; // end initRoutingTable() |
---|
| 415 | |
---|
| 416 | //////////////////////////////////////////////////////////////// |
---|
| 417 | // initGlobalRoutingTable() |
---|
| 418 | // This method can be used by any global VCI interconnect. |
---|
| 419 | // It initializes the routing table that implements |
---|
| 420 | // the VCI address MSB bits decoding ROM. |
---|
| 421 | // - The argument is a pointer to the int table that |
---|
| 422 | // has been allocated by the constructor of the |
---|
| 423 | // VCI interconnect component. |
---|
| 424 | // - Each entry contains a VCI target global index. |
---|
| 425 | // The VCI local Target index is not used here |
---|
| 426 | //////////////////////////////////////////////////////////////// |
---|
| 427 | |
---|
| 428 | |
---|
| 429 | void initGlobalRoutingTable(unsigned int* tab) { |
---|
| 430 | if (MSBNumberCalled==false) { |
---|
[81] | 431 | std::cerr << "ERROR in initMSBRoutingTable:" << std::endl ; |
---|
| 432 | std::cerr << "MSB number has not been defined !" << std::endl ; |
---|
[2] | 433 | //sc_stop(); |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | if (defaultTargetCalled==false) { |
---|
[81] | 437 | std::cerr << "ERROR in initMSBRoutingTable:" << std::endl ; |
---|
| 438 | std::cerr << "Default Target has not been defined!" << std::endl ; |
---|
[2] | 439 | //sc_stop(); |
---|
| 440 | } |
---|
| 441 | |
---|
| 442 | int RoutingTableSize = 1 << MSBNumber; |
---|
| 443 | int PageSize = 1 << (32 - MSBNumber); |
---|
| 444 | |
---|
| 445 | // The 0xFFFFFFFF value means "not allocated" |
---|
| 446 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 447 | tab[i] = 0xFFFFFFFF; |
---|
| 448 | } |
---|
| 449 | // printf ( " tableau rempli de 0xFFFFFFFF \n"); |
---|
| 450 | |
---|
| 451 | // loop on the segment list |
---|
| 452 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
---|
| 453 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
---|
| 454 | const char *name = (*seg).getName(); |
---|
| 455 | unsigned int base = (*seg).getBase(); |
---|
| 456 | unsigned int size = (*seg).getSize(); |
---|
| 457 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
---|
| 458 | |
---|
| 459 | unsigned int page = base >> (32-MSBNumber) ; |
---|
| 460 | |
---|
| 461 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
---|
| 462 | if(tab[page] != 0xFFFFFFFF) { |
---|
| 463 | // printf("\n page n° %x can not be added to cluster %x because it is already allocated to %x\n",page,globalTarget,tab[page]); |
---|
[81] | 464 | std::cerr << "Error in initGlobalRoutingTable:" << std::endl ; |
---|
| 465 | std::cerr << "Segment " << name << " allocated to VCI target " << globalTarget << std::endl; |
---|
| 466 | std::cerr << "overlap another segment... or is in the same page" << std::endl; |
---|
| 467 | std::cerr << "as another segment allocated to another VCI target" << std::endl; |
---|
[2] | 468 | //sc_stop(); |
---|
| 469 | } else { |
---|
| 470 | tab[page]=globalTarget; |
---|
| 471 | |
---|
| 472 | // printf("\n page n° %x allocated to cluster °%x i.e %s \n",page,tab[page],name); |
---|
| 473 | } |
---|
| 474 | page = page + 1; |
---|
| 475 | } // end for x |
---|
| 476 | } // end for seg |
---|
| 477 | |
---|
| 478 | // Default target |
---|
| 479 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 480 | if(tab[i] == 0xFFFFFFFF) tab[i] = defaultTargetGlobalIndex; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | }; // end initGlobalRoutingTable() |
---|
| 484 | |
---|
| 485 | |
---|
| 486 | //////////////////////////////////////////////////////////////// |
---|
| 487 | // initLocalRoutingTable() |
---|
| 488 | // This method can be used by the local VCI interconnect. |
---|
| 489 | // It initializes the routing table that implements |
---|
| 490 | // the VCI address LSB bits decoding ROM. |
---|
| 491 | // - The argument is a pointer to the char table that |
---|
| 492 | // has been allocated by the constructor of the local |
---|
| 493 | // VCI interconnect component. |
---|
| 494 | // - Each entry contains a VCI target local index as well as a global index . |
---|
| 495 | // - This method needs a parameter : the global index of the subsystem , |
---|
| 496 | // because it only fills the pages corresponding to a segment in this subsystem |
---|
| 497 | // other pages are adressed to the Default Target |
---|
| 498 | //////////////////////////////////////////////////////////////// |
---|
| 499 | |
---|
| 500 | void initLocalRoutingTable(unsigned int* tab, unsigned int cluster) { |
---|
| 501 | if (MSBNumberCalled==false) { |
---|
[81] | 502 | std::cerr << "ERROR in initLocalRoutingTable:" << std::endl ; |
---|
| 503 | std::cerr << "MSB number has not been defined !" << std::endl ; |
---|
[2] | 504 | //sc_stop(); |
---|
| 505 | } |
---|
| 506 | |
---|
| 507 | if (defaultTargetCalled==false) { |
---|
[81] | 508 | std::cerr << "ERROR in initLocalRoutingTable:" << std::endl ; |
---|
| 509 | std::cerr << "Default Target has not been defined!" << std::endl ; |
---|
[2] | 510 | //sc_stop(); |
---|
| 511 | } |
---|
| 512 | |
---|
| 513 | int RoutingTableSize = 1 << MSBNumber+LSBNumber; |
---|
| 514 | int PageSize = 1 << (32 - MSBNumber - LSBNumber ); |
---|
| 515 | |
---|
| 516 | // The 0xFF value means "not allocated" |
---|
| 517 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 518 | tab[i] = 0xFF; |
---|
| 519 | } |
---|
| 520 | // printf ( " Local routing table cluster %x: tableau rempli de 0xFF \n",cluster); |
---|
| 521 | // loop on the segment list |
---|
| 522 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
---|
| 523 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
---|
| 524 | const char *name = (*seg).getName(); |
---|
| 525 | unsigned int base = (*seg).getBase(); |
---|
| 526 | unsigned int size = (*seg).getSize(); |
---|
| 527 | unsigned int localTarget = (*seg).getLocalTarget(); |
---|
| 528 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
---|
| 529 | |
---|
| 530 | unsigned int page = base >> (32 - MSBNumber - LSBNumber) ; |
---|
| 531 | |
---|
| 532 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
---|
| 533 | if(tab[page] != 0xFF) { |
---|
| 534 | // printf("\n page n° %x ne peut etre adressée à target n°%x car elle est allouée à %x \n",page,localTarget,tab[page]); |
---|
[81] | 535 | std::cerr << "Error in initLocalRoutingTable:" << std::endl ; |
---|
| 536 | std::cerr << "Segment " << name << " allocated to VCI target " << localTarget << std::endl; |
---|
| 537 | std::cerr << "overlap another segment... or is in the same page" << std::endl; |
---|
| 538 | std::cerr << "as another segment allocated to another VCI target" << std::endl; |
---|
[2] | 539 | //sc_stop(); |
---|
| 540 | } else { |
---|
| 541 | if (globalTarget==cluster){ |
---|
| 542 | tab[page] = localTarget; |
---|
| 543 | // printf(" page n° %x adressée à target n°%x dans cluster %x i.e %s \n",page,tab[page],cluster,name); |
---|
| 544 | } |
---|
| 545 | page = page + 1; |
---|
| 546 | |
---|
| 547 | } |
---|
| 548 | } |
---|
| 549 | } // end loop segment list |
---|
| 550 | |
---|
| 551 | for (int i=0 ; i < RoutingTableSize ; i++) { |
---|
| 552 | if ((tab[i]==0xFF) && (defaultTargetGlobalIndex==cluster)) |
---|
| 553 | tab[i]=defaultTargetLocalIndex; |
---|
| 554 | } |
---|
| 555 | |
---|
| 556 | }; // end initLocalRoutingTable() |
---|
| 557 | |
---|
| 558 | ////////////////////////////////////////////////////////////// |
---|
| 559 | // getSegmentList() |
---|
| 560 | // returns the list of all segments |
---|
| 561 | // allocated to a given VCI target. |
---|
| 562 | // This method tests both the local and global VCI target index |
---|
| 563 | ////////////////////////////////////////////////////////////// |
---|
| 564 | |
---|
| 565 | std::list<SEGMENT_TABLE_ENTRY> getSegmentList(unsigned int globalIndex,unsigned int localIndex){ |
---|
| 566 | std::list<SEGMENT_TABLE_ENTRY> targetlist; |
---|
| 567 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
---|
| 568 | unsigned int localTarget; |
---|
| 569 | unsigned int globalTarget; |
---|
| 570 | |
---|
| 571 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) { |
---|
| 572 | localTarget=(*segIterator).getLocalTarget(); |
---|
| 573 | globalTarget=(*segIterator).getGlobalTarget(); |
---|
| 574 | if ((localTarget==localIndex)&&(globalTarget==globalIndex)){ |
---|
| 575 | targetlist.push_back(*segIterator); |
---|
| 576 | } |
---|
| 577 | } |
---|
| 578 | return(targetlist); |
---|
| 579 | |
---|
| 580 | }; // end getSegmentList() |
---|
| 581 | |
---|
| 582 | //////////////////////////////////////////////////// |
---|
| 583 | // function getTotalsegmentList |
---|
| 584 | // used to get the whole segmentlist |
---|
| 585 | /////////////////////////////////////////////////// |
---|
| 586 | |
---|
| 587 | std::list<SEGMENT_TABLE_ENTRY> getTotalSegmentList() |
---|
| 588 | { |
---|
| 589 | |
---|
| 590 | return(segList); |
---|
| 591 | |
---|
| 592 | }; // end getSegmentList() |
---|
| 593 | |
---|
| 594 | //////////////////////////////////////////////////////////////// |
---|
| 595 | // initUncachedTable() |
---|
| 596 | // This method can be used by any SoCLib processor. |
---|
| 597 | // It initializes an "Uncached Table" that implements |
---|
| 598 | // the address MSB bits decoding ROM. |
---|
| 599 | // - The argument is a pointer to the bool table that |
---|
| 600 | // has been allocated by the constructor of the processor. |
---|
| 601 | // - Each ROM entry contains a boolean that is true when |
---|
| 602 | // the adress Ris to an uncached segment. |
---|
| 603 | ///////////////////////////////////////////////////////////////: |
---|
| 604 | |
---|
| 605 | void initUncachedTable(bool* tab) { |
---|
| 606 | if ((MSBNumberCalled==false)||(LSBNumberCalled==false)) |
---|
| 607 | { |
---|
[81] | 608 | std::cerr << "ERROR in initUncachedTable:" << std::endl ; |
---|
| 609 | std::cerr << "MSB or LSB number has not been defined !" << std::endl ; |
---|
[2] | 610 | //sc_stop(); |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | int UncachedTableSize = 1 << (MSBNumber+LSBNumber); |
---|
| 614 | int PageSize = 1 << (32 - (MSBNumber + LSBNumber)); |
---|
| 615 | |
---|
| 616 | for (int i=0 ; i < UncachedTableSize ; i++) |
---|
| 617 | { |
---|
| 618 | tab[i] = true; |
---|
| 619 | } |
---|
| 620 | |
---|
| 621 | std::list<SEGMENT_TABLE_ENTRY>::iterator iter; |
---|
| 622 | |
---|
| 623 | for ( iter = segList.begin() ; |
---|
| 624 | iter != segList.end() ; |
---|
| 625 | ++iter) |
---|
| 626 | { |
---|
| 627 | unsigned int base = (*iter).getBase(); |
---|
| 628 | unsigned int size = (*iter).getSize(); |
---|
| 629 | bool uncached = (*iter).getUncached(); |
---|
| 630 | |
---|
| 631 | unsigned int page_index = base >> (32-((MSBNumber + LSBNumber))) ; |
---|
| 632 | |
---|
| 633 | for (int x = (int) size ; x > 0 ; x = x - PageSize) |
---|
| 634 | { |
---|
| 635 | tab[page_index] = uncached; |
---|
| 636 | page_index = page_index + 1; |
---|
| 637 | } |
---|
| 638 | } // end for segment list |
---|
| 639 | }; // end initUncachedTable() |
---|
| 640 | |
---|
| 641 | }; // end struct SOCLIB_SEGMENT_TABLE |
---|
| 642 | |
---|
| 643 | |
---|
| 644 | #endif |
---|