sys/contrib/octeon-sdk/cvmx-tra.c

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  44
  45 /**
  46  * @file
  47  *
  48  * Interface to the Trace buffer hardware.
  49  *
  50  * <hr>$Revision: 30644 $<hr>
  51  */
  52 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
  53 #include <linux/module.h>
  54 #include <asm/octeon/cvmx.h>
  55 #include <asm/octeon/cvmx-tra.h>
  56 #else
  57 #include "cvmx.h"
  58 #include "cvmx-tra.h"
  59 #endif
  60
  61 static const char *TYPE_ARRAY[] = {
  62     "DWB - Don't write back",
  63     "PL2 - Prefetch into L2",
  64     "PSL1 - Dcache fill, skip L2",
  65     "LDD - Dcache fill",
  66     "LDI - Icache/IO fill",
  67     "LDT - Icache/IO fill, skip L2",
  68     "STF - Store full",
  69     "STC - Store conditional",
  70     "STP - Store partial",
  71     "STT - Store full, skip L2",
  72     "IOBLD8 - IOB 8bit load",
  73     "IOBLD16 - IOB 16bit load",
  74     "IOBLD32 - IOB 32bit load",
  75     "IOBLD64 - IOB 64bit load",
  76     "IOBST - IOB store",
  77     "IOBDMA - Async IOB",
  78     "SAA - Store atomic add",
  79     "RSVD17",
  80     "RSVD18",
  81     "RSVD19",
  82     "RSVD20",
  83     "RSVD21",
  84     "RSVD22",
  85     "RSVD23",
  86     "RSVD24",
  87     "RSVD25",
  88     "RSVD26",
  89     "RSVD27",
  90     "RSVD28",
  91     "RSVD29",
  92     "RSVD30",
  93     "RSVD31"
  94 };
  95
  96 static const char *TYPE_ARRAY2[] = {
  97     "NOP - None",
  98     "LDT - Icache/IO fill, skip L2",
  99     "LDI - Icache/IO fill",
 100     "PL2 - Prefetch into L2",
 101     "RPL2 - Mark for replacement in L2",
 102     "DWB - Don't write back",
 103     "RSVD6",
 104     "RSVD7",
 105     "LDD - Dcache fill",
 106     "PSL1 - Prefetch L1, skip L2",
 107     "RSVD10",
 108     "RSVD11",
 109     "RSVD12",
 110     "RSVD13",
 111     "RSVD14",
 112     "IOBDMA - Async IOB",
 113     "STF - Store full",
 114     "STT - Store full, skip L2",
 115     "STP - Store partial",
 116     "STC - Store conditional",
 117     "STFIL1 - Store full, invalidate L1",
 118     "STTIL1 - Store full, skip L2, invalidate L1",
 119     "FAS32 - Atomic 32bit swap",
 120     "FAS64 - Atomic 64bit swap",
 121     "WBIL2i - Writeback, invalidate, by index/way",
 122     "LTGL2i - Read tag@index/way",
 123     "STGL2i - Write tag@index/way",
 124     "RSVD27",
 125     "INVL2 - Invalidate, by address",
 126     "WBIL2 - Writeback, invalidate, by address",
 127     "WBL2 - Writeback, by address",
 128     "LCKL2 - Allocate, lock, by address",
 129     "IOBLD8 - IOB 8bit load",
 130     "IOBLD16 - IOB 16bit load",
 131     "IOBLD32 - IOB 32bit load",
 132     "IOBLD64 - IOB 64bit load",
 133     "IOBST8 - IOB 8bit store",
 134     "IOBST16 - IOB 16bit store",
 135     "IOBST32 - IOB 32bit store",
 136     "IOBST64 - IOB 64bit store",
 137     "SET8 - 8bit Atomic swap with 1's",
 138     "SET16 - 16bit Atomic swap with 1's",
 139     "SET32 - 32bit Atomic swap with 1's",
 140     "SET64 - 64bit Atomic swap with 1's",
 141     "CLR8 - 8bit Atomic swap with 0's",
 142     "CLR16 - 16bit Atomic swap with 0's",
 143     "CLR32 - 32bit Atomic swap with 0's",
 144     "CLR64 - 64bit Atomic swap with 0's",
 145     "INCR8 - 8bit Atomic fetch & add by 1",
 146     "INCR16 - 16bit Atomic fetch & add by 1",
 147     "INCR32 - 32bit Atomic fetch & add by 1",
 148     "INCR64 - 64bit Atomic fetch & add by 1",
 149     "DECR8 - 8bit Atomic fetch & add by -1",
 150     "DECR16 - 16bit Atomic fetch & add by -1",
 151     "DECR32 - 32bit Atomic fetch & add by -1",
 152     "DECR64 - 64bit Atomic fetch & add by -1",
 153     "RSVD56",
 154     "RSVD57",
 155     "FAA32 - 32bit Atomic fetch and add",
 156     "FAA64 - 64bit Atomic fetch and add",
 157     "RSVD60",
 158     "RSVD61",
 159     "SAA32 - 32bit Atomic add",
 160     "SAA64 - 64bit Atomic add"
 161 };
 162
 163 static const char *SOURCE_ARRAY[] = {
 164     "PP0",
 165     "PP1",
 166     "PP2",
 167     "PP3",
 168     "PP4",
 169     "PP5",
 170     "PP6",
 171     "PP7",
 172     "PP8",
 173     "PP9",
 174     "PP10",
 175     "PP11",
 176     "PP12",
 177     "PP13",
 178     "PP14",
 179     "PP15",
 180     "PIP/IPD",
 181     "PKO-R",
 182     "FPA/TIM/DFA/PCI/ZIP/POW/PKO-W",
 183     "DWB",
 184     "RSVD20",
 185     "RSVD21",
 186     "RSVD22",
 187     "RSVD23",
 188     "RSVD24",
 189     "RSVD25",
 190     "RSVD26",
 191     "RSVD27",
 192     "RSVD28",
 193     "RSVD29",
 194     "RSVD30",
 195     "RSVD31"
 196 };
 197
 198 static const char *DEST_ARRAY[] = {
 199     "CIU/GPIO",
 200     "RSVD1",
 201     "RSVD2",
 202     "PCI/PCIe/SLI",
 203     "KEY",
 204     "FPA",
 205     "DFA",
 206     "ZIP",
 207     "RNG",
 208     "IPD",
 209     "PKO",
 210     "RSVD11",
 211     "POW",
 212     "USB0",
 213     "RAD",
 214     "RSVD15",
 215     "RSVD16",
 216     "RSVD17",
 217     "RSVD18",
 218     "RSVD19",
 219     "RSVD20",
 220     "RSVD21",
 221     "RSVD22",
 222     "RSVD23",
 223     "RSVD24",
 224     "RSVD25",
 225     "RSVD26",
 226     "DPI",
 227     "RSVD28",
 228     "RSVD29",
 229     "FAU",
 230     "RSVD31"
 231 };
 232
 233 #define CVMX_TRA_SOURCE_MASK       (OCTEON_IS_MODEL(OCTEON_CN63XX) ? 0xf00ff : 0xfffff)
 234 #define CVMX_TRA_DESTINATION_MASK  0xfffffffful
 235
 236 /**
 237  * @INTERNAL
 238  * Setup the trace buffer filter command mask. The bit position of filter commands
 239  * are different for each Octeon model.
 240  *
 241  * @param filter    Which event to log
 242  * @return          Bitmask of filter command based on the event.
 243  */
 244 static uint64_t __cvmx_tra_set_filter_cmd_mask(cvmx_tra_filt_t filter)
 245 {
 246     cvmx_tra_filt_cmd_t filter_command;
 247
 248     if (OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX))
 249     {
 250         /* Bit positions of filter commands are different, map it accordingly */
 251         uint64_t cmd = 0;
 252         if ((filter & CVMX_TRA_FILT_ALL) == -1ull)
 253         {
 254             if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
 255                 cmd = 0x1ffff;
 256             else
 257                 cmd = 0xffff;
 258         }
 259         if (filter & CVMX_TRA_FILT_DWB)
 260             cmd |= 1ull<<0;
 261         if (filter & CVMX_TRA_FILT_PL2)
 262             cmd |= 1ull<<1;
 263         if (filter & CVMX_TRA_FILT_PSL1)
 264             cmd |= 1ull<<2;
 265         if (filter & CVMX_TRA_FILT_LDD)
 266             cmd |= 1ull<<3;
 267         if (filter & CVMX_TRA_FILT_LDI)
 268             cmd |= 1ull<<4;
 269         if (filter & CVMX_TRA_FILT_LDT)
 270             cmd |= 1ull<<5;
 271         if (filter & CVMX_TRA_FILT_STF)
 272             cmd |= 1ull<<6;
 273         if (filter & CVMX_TRA_FILT_STC)
 274             cmd |= 1ull<<7;
 275         if (filter & CVMX_TRA_FILT_STP)
 276             cmd |= 1ull<<8;
 277         if (filter & CVMX_TRA_FILT_STT)
 278             cmd |= 1ull<<9;
 279         if (filter & CVMX_TRA_FILT_IOBLD8)
 280             cmd |= 1ull<<10;
 281         if (filter & CVMX_TRA_FILT_IOBLD16)
 282             cmd |= 1ull<<11;
 283         if (filter & CVMX_TRA_FILT_IOBLD32)
 284             cmd |= 1ull<<12;
 285         if (filter & CVMX_TRA_FILT_IOBLD64)
 286             cmd |= 1ull<<13;
 287         if (filter & CVMX_TRA_FILT_IOBST)
 288             cmd |= 1ull<<14;
 289         if (filter & CVMX_TRA_FILT_IOBDMA)
 290             cmd |= 1ull<<15;
 291         if (OCTEON_IS_MODEL(OCTEON_CN5XXX) && (filter & CVMX_TRA_FILT_SAA))
 292             cmd |= 1ull<<16;
 293
 294         filter_command.u64 = cmd;
 295     }
 296     else
 297     {
 298         if ((filter & CVMX_TRA_FILT_ALL) == -1ull)
 299             filter_command.u64 = CVMX_TRA_FILT_ALL;
 300         else
 301             filter_command.u64 = filter;
 302
 303         filter_command.cn63xx.reserved_60_61 = 0;
 304         filter_command.cn63xx.reserved_56_57 = 0;
 305         filter_command.cn63xx.reserved_10_14 = 0;
 306         filter_command.cn63xx.reserved_6_7 = 0;
 307     }
 308     return filter_command.u64;
 309 }
 310
 311
 312 /**
 313  * Setup the TRA buffer for use
 314  *
 315  * @param control TRA control setup
 316  * @param filter  Which events to log
 317  * @param source_filter
 318  *                Source match
 319  * @param dest_filter
 320  *                Destination match
 321  * @param address Address compare
 322  * @param address_mask
 323  *                Address mask
 324  */
 325 void cvmx_tra_setup(cvmx_tra_ctl_t control, cvmx_tra_filt_t filter,
 326                     cvmx_tra_sid_t source_filter, cvmx_tra_did_t dest_filter,
 327                     uint64_t address, uint64_t address_mask)
 328 {
 329     cvmx_tra_filt_cmd_t filt_cmd;
 330     cvmx_tra_filt_sid_t filt_sid;
 331     cvmx_tra_filt_did_t filt_did;
 332
 333     filt_cmd.u64 = __cvmx_tra_set_filter_cmd_mask(filter);
 334     filt_sid.u64 = source_filter & CVMX_TRA_SOURCE_MASK;
 335     filt_did.u64 = dest_filter & CVMX_TRA_DESTINATION_MASK;
 336
 337     cvmx_write_csr(CVMX_TRA_CTL,            control.u64);
 338     cvmx_write_csr(CVMX_TRA_FILT_CMD,       filt_cmd.u64);
 339     cvmx_write_csr(CVMX_TRA_FILT_SID,       filt_sid.u64);
 340     cvmx_write_csr(CVMX_TRA_FILT_DID,       filt_did.u64);
 341     cvmx_write_csr(CVMX_TRA_FILT_ADR_ADR,   address);
 342     cvmx_write_csr(CVMX_TRA_FILT_ADR_MSK,   address_mask);
 343 }
 344 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
 345 EXPORT_SYMBOL(cvmx_tra_setup);
 346 #endif
 347
 348
 349 /**
 350  * Setup a TRA trigger. How the triggers are used should be
 351  * setup using cvmx_tra_setup.
 352  *
 353  * @param trigger Trigger to setup (0 or 1)
 354  * @param filter  Which types of events to trigger on
 355  * @param source_filter
 356  *                Source trigger match
 357  * @param dest_filter
 358  *                Destination trigger match
 359  * @param address Trigger address compare
 360  * @param address_mask
 361  *                Trigger address mask
 362  */
 363 void cvmx_tra_trig_setup(uint64_t trigger, cvmx_tra_filt_t filter,
 364                          cvmx_tra_sid_t source_filter, cvmx_tra_did_t dest_filter,
 365                          uint64_t address, uint64_t address_mask)
 366 {
 367     cvmx_tra_filt_cmd_t tra_filt_cmd;
 368     cvmx_tra_filt_sid_t tra_filt_sid;
 369     cvmx_tra_filt_did_t tra_filt_did;
 370
 371     tra_filt_cmd.u64 = __cvmx_tra_set_filter_cmd_mask(filter);
 372     tra_filt_sid.u64 = source_filter & CVMX_TRA_SOURCE_MASK;
 373     tra_filt_did.u64 = dest_filter & CVMX_TRA_DESTINATION_MASK;
 374
 375     cvmx_write_csr(CVMX_TRA_TRIG0_CMD + trigger * 64,       tra_filt_cmd.u64);
 376     cvmx_write_csr(CVMX_TRA_TRIG0_SID + trigger * 64,       tra_filt_sid.u64);
 377     cvmx_write_csr(CVMX_TRA_TRIG0_DID + trigger * 64,       tra_filt_did.u64);
 378     cvmx_write_csr(CVMX_TRA_TRIG0_ADR_ADR + trigger * 64,   address);
 379     cvmx_write_csr(CVMX_TRA_TRIG0_ADR_MSK + trigger * 64,   address_mask);
 380 }
 381 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
 382 EXPORT_SYMBOL(cvmx_tra_trig_setup);
 383 #endif
 384
 385
 386 /**
 387  * Read an entry from the TRA buffer
 388  *
 389  * @return Value return. High bit will be zero if there wasn't any data
 390  */
 391 cvmx_tra_data_t cvmx_tra_read(void)
 392 {
 393     uint64_t address = CVMX_TRA_READ_DAT;
 394     cvmx_tra_data_t result;
 395
 396     /* The trace buffer format is wider than 64-bits in Octeon2 model,
 397        read the register again to get the second part of the data. */
 398     if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && !OCTEON_IS_MODEL(OCTEON_CN5XXX))
 399     {
 400         /* These reads need to be as close as possible to each other */
 401         result.u128.data = cvmx_read_csr(address);
 402         result.u128.datahi = cvmx_read_csr(address);
 403     }
 404     else
 405     {
 406         result.u128.data = cvmx_read_csr(address);
 407         result.u128.datahi = 0;
 408     }
 409
 410     return result;
 411 }
 412
 413 /**
 414  * Decode a TRA entry into human readable output
 415  *
 416  * @param tra_ctl Trace control setup
 417  * @param data    Data to decode
 418  */
 419 void cvmx_tra_decode_text(cvmx_tra_ctl_t tra_ctl, cvmx_tra_data_t data)
 420 {
 421     if (OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX))
 422     {
 423         /* The type is a five bit field for some entries and 4 for other. The four
 424            bit entries can be mis-typed if the top is set */
 425         int type = data.cmn.type;
 426
 427         if (type >= 0x1a)
 428             type &= 0xf;
 429
 430         switch (type)
 431         {
 432             case 0:  /* DWB */
 433             case 1:  /* PL2 */
 434             case 2:  /* PSL1 */
 435             case 3:  /* LDD */
 436             case 4:  /* LDI */
 437             case 5:  /* LDT */
 438                 cvmx_dprintf("0x%016llx %c%+10d %s %s 0x%016llx\n",
 439                     (unsigned long long)data.u128.data,
 440                     (data.cmn.discontinuity) ? 'D' : ' ',
 441                     data.cmn.timestamp << (tra_ctl.s.time_grn*3),
 442                     TYPE_ARRAY[type],
 443                     SOURCE_ARRAY[data.cmn.source],
 444                     (unsigned long long)data.cmn.address);
 445                 break;
 446             case 6:  /* STF */
 447             case 7:  /* STC */
 448             case 8:  /* STP */
 449             case 9:  /* STT */
 450             case 16: /* SAA */
 451                 cvmx_dprintf("0x%016llx %c%+10d %s %s mask=0x%02x 0x%016llx\n",
 452                    (unsigned long long)data.u128.data,
 453                    (data.cmn.discontinuity) ? 'D' : ' ',
 454                    data.cmn.timestamp << (tra_ctl.s.time_grn*3),
 455                    TYPE_ARRAY[type],
 456                    SOURCE_ARRAY[data.store.source],
 457                    (unsigned int)data.store.mask,
 458                    (unsigned long long)data.store.address << 3);
 459                 break;
 460             case 10:  /* IOBLD8 */
 461             case 11:  /* IOBLD16 */
 462             case 12:  /* IOBLD32 */
 463             case 13:  /* IOBLD64 */
 464             case 14:  /* IOBST */
 465                 cvmx_dprintf("0x%016llx %c%+10d %s %s->%s subdid=0x%x 0x%016llx\n",
 466                    (unsigned long long)data.u128.data,
 467                    (data.cmn.discontinuity) ? 'D' : ' ',
 468                    data.cmn.timestamp << (tra_ctl.s.time_grn*3),
 469                    TYPE_ARRAY[type],
 470                    SOURCE_ARRAY[data.iobld.source],
 471                    DEST_ARRAY[data.iobld.dest],
 472                    (unsigned int)data.iobld.subid,
 473                    (unsigned long long)data.iobld.address);
 474                 break;
 475             case 15:  /* IOBDMA */
 476                 cvmx_dprintf("0x%016llx %c%+10d %s %s->%s len=0x%x 0x%016llx\n",
 477                    (unsigned long long)data.u128.data,
 478                    (data.cmn.discontinuity) ? 'D' : ' ',
 479                    data.cmn.timestamp << (tra_ctl.s.time_grn*3),
 480                    TYPE_ARRAY[type],
 481                    SOURCE_ARRAY[data.iob.source],
 482                    DEST_ARRAY[data.iob.dest],
 483                    (unsigned int)data.iob.mask,
 484                    (unsigned long long)data.iob.address << 3);
 485                 break;
 486             default:
 487                 cvmx_dprintf("0x%016llx %c%+10d Unknown format\n",
 488                    (unsigned long long)data.u128.data,
 489                    (data.cmn.discontinuity) ? 'D' : ' ',
 490                    data.cmn.timestamp << (tra_ctl.s.time_grn*3));
 491                 break;
 492         }
 493     }
 494     else
 495     {
 496         int type;
 497
 498         type = data.cmn2.type;
 499
 500         switch (1ull<<type)
 501         {
 502             case CVMX_TRA_FILT_DECR64:
 503             case CVMX_TRA_FILT_DECR32:
 504             case CVMX_TRA_FILT_DECR16:
 505             case CVMX_TRA_FILT_DECR8:
 506             case CVMX_TRA_FILT_INCR64:
 507             case CVMX_TRA_FILT_INCR32:
 508             case CVMX_TRA_FILT_INCR16:
 509             case CVMX_TRA_FILT_INCR8:
 510             case CVMX_TRA_FILT_CLR64:
 511             case CVMX_TRA_FILT_CLR32:
 512             case CVMX_TRA_FILT_CLR16:
 513             case CVMX_TRA_FILT_CLR8:
 514             case CVMX_TRA_FILT_SET64:
 515             case CVMX_TRA_FILT_SET32:
 516             case CVMX_TRA_FILT_SET16:
 517             case CVMX_TRA_FILT_SET8:
 518             case CVMX_TRA_FILT_WBL2:
 519             case CVMX_TRA_FILT_DWB:
 520             case CVMX_TRA_FILT_RPL2:
 521             case CVMX_TRA_FILT_PL2:
 522             case CVMX_TRA_FILT_LDI:
 523             case CVMX_TRA_FILT_LDT:
 524                 cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s 0x%016llx%llx\n",
 525                    (unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
 526                    (data.cmn2.discontinuity) ? 'D' : ' ',
 527                    data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
 528                    TYPE_ARRAY2[type],
 529                    SOURCE_ARRAY[data.cmn2.source],
 530                    (unsigned long long)data.cmn2.addresshi,
 531                    (unsigned long long)data.cmn2.addresslo);
 532                 break;
 533             case CVMX_TRA_FILT_PSL1:
 534             case CVMX_TRA_FILT_LDD:
 535             case CVMX_TRA_FILT_FAS64:
 536             case CVMX_TRA_FILT_FAS32:
 537             case CVMX_TRA_FILT_FAA64:
 538             case CVMX_TRA_FILT_FAA32:
 539             case CVMX_TRA_FILT_SAA64:
 540             case CVMX_TRA_FILT_SAA32:
 541             case CVMX_TRA_FILT_STC:
 542             case CVMX_TRA_FILT_STF:
 543             case CVMX_TRA_FILT_STP:
 544             case CVMX_TRA_FILT_STT:
 545                 cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s mask=0x%02x 0x%016llx%llx\n",
 546                    (unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
 547                    (data.cmn2.discontinuity) ? 'D' : ' ',
 548                    data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
 549                    TYPE_ARRAY2[type],
 550                    SOURCE_ARRAY[data.store2.source],
 551                    (unsigned int)data.store2.mask,
 552                    (unsigned long long)data.store2.addresshi,
 553                    (unsigned long long)data.store2.addresslo);
 554                 break;
 555             case CVMX_TRA_FILT_IOBST64:
 556             case CVMX_TRA_FILT_IOBST32:
 557             case CVMX_TRA_FILT_IOBST16:
 558             case CVMX_TRA_FILT_IOBST8:
 559             case CVMX_TRA_FILT_IOBLD64:
 560             case CVMX_TRA_FILT_IOBLD32:
 561             case CVMX_TRA_FILT_IOBLD16:
 562             case CVMX_TRA_FILT_IOBLD8:
 563                 cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s->%s subdid=0x%x 0x%016llx%llx\n",
 564                    (unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
 565                    (data.cmn2.discontinuity) ? 'D' : ' ',
 566                    data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
 567                    TYPE_ARRAY2[type],
 568                    SOURCE_ARRAY[data.iobld2.source],
 569                    DEST_ARRAY[data.iobld2.dest],
 570                    (unsigned int)data.iobld2.subid,
 571                    (unsigned long long)data.iobld2.addresshi,
 572                    (unsigned long long)data.iobld2.addresslo);
 573                 break;
 574             case CVMX_TRA_FILT_IOBDMA:
 575                 cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s->%s len=0x%x 0x%016llx%llx\n",
 576                    (unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
 577                    (data.iob2.discontinuity) ? 'D' : ' ',
 578                    data.iob2.timestamp << (tra_ctl.s.time_grn*3),
 579                    TYPE_ARRAY2[type],
 580                    SOURCE_ARRAY[data.iob2.source],
 581                    DEST_ARRAY[data.iob2.dest],
 582                    (unsigned int)data.iob2.mask,
 583                    (unsigned long long)data.iob2.addresshi << 3,
 584                    (unsigned long long)data.iob2.addresslo << 3);
 585                 break;
 586             default:
 587                 cvmx_dprintf("0x%016llx%016llx %c%+10d Unknown format\n",
 588                    (unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
 589                    (data.cmn2.discontinuity) ? 'D' : ' ',
 590                    data.cmn2.timestamp << (tra_ctl.s.time_grn*3));
 591                 break;
 592         }
 593     }
 594 }
 595
 596 /**
 597  * Display the entire trace buffer. It is advised that you
 598  * disable the trace buffer before calling this routine
 599  * otherwise it could infinitely loop displaying trace data
 600  * that it created.
 601  */
 602 void cvmx_tra_display(void)
 603 {
 604     cvmx_tra_ctl_t tra_ctl;
 605     cvmx_tra_data_t data;
 606     int valid = 0;
 607
 608     tra_ctl.u64 = cvmx_read_csr(CVMX_TRA_CTL);
 609
 610     do
 611     {
 612         data = cvmx_tra_read();
 613         if ((OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX)) && data.cmn.valid)
 614             valid = 1;
 615         else if (data.cmn2.valid)
 616             valid = 1;
 617         else
 618             valid = 0;
 619
 620         if (valid)
 621             cvmx_tra_decode_text(tra_ctl, data);
 622
 623     } while (valid);
 624 }
 625 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
 626 EXPORT_SYMBOL(cvmx_tra_display);
 627 #endif