Ben Cheng | 5a4eb4e | 2009-09-14 16:00:41 -0700 | [diff] [blame] | 1 | /** |
| 2 | * @file daemon/opd_ibs.c |
| 3 | * AMD Family10h Instruction Based Sampling (IBS) handling. |
| 4 | * |
| 5 | * @remark Copyright 2007 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author Jason Yeh <jason.yeh@amd.com> |
| 9 | * @author Paul Drongowski <paul.drongowski@amd.com> |
| 10 | * @author Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> |
| 11 | * Copyright (c) 2008 Advanced Micro Devices, Inc. |
| 12 | */ |
| 13 | |
| 14 | #include "op_hw_config.h" |
| 15 | #include "op_events.h" |
| 16 | #include "op_string.h" |
| 17 | #include "op_libiberty.h" |
| 18 | #include "opd_printf.h" |
| 19 | #include "opd_trans.h" |
| 20 | #include "opd_events.h" |
| 21 | #include "opd_kernel.h" |
| 22 | #include "opd_anon.h" |
| 23 | #include "opd_sfile.h" |
| 24 | #include "opd_interface.h" |
| 25 | #include "opd_mangling.h" |
| 26 | #include "opd_extended.h" |
| 27 | #include "opd_ibs.h" |
| 28 | #include "opd_ibs_trans.h" |
| 29 | #include "opd_ibs_macro.h" |
| 30 | |
| 31 | #include <stdlib.h> |
| 32 | #include <stdio.h> |
| 33 | #include <errno.h> |
| 34 | #include <string.h> |
| 35 | |
| 36 | extern op_cpu cpu_type; |
| 37 | extern int no_event_ok; |
| 38 | extern int sfile_equal(struct sfile const * sf, struct sfile const * sf2); |
| 39 | extern void sfile_dup(struct sfile * to, struct sfile * from); |
| 40 | |
| 41 | /* IBS Select Arrays/Counters */ |
| 42 | static unsigned int ibs_selected_size; |
| 43 | static unsigned int ibs_fetch_selected_flag; |
| 44 | static unsigned int ibs_fetch_selected_size; |
| 45 | static unsigned int ibs_op_selected_flag; |
| 46 | static unsigned int ibs_op_selected_size; |
| 47 | static unsigned int ibs_op_ls_selected_flag; |
| 48 | static unsigned int ibs_op_ls_selected_size; |
| 49 | static unsigned int ibs_op_nb_selected_flag; |
| 50 | static unsigned int ibs_op_nb_selected_size; |
| 51 | |
| 52 | /* IBS Statistics */ |
| 53 | static unsigned long ibs_fetch_sample_stats; |
| 54 | static unsigned long ibs_fetch_incomplete_stats; |
| 55 | static unsigned long ibs_op_sample_stats; |
| 56 | static unsigned long ibs_op_incomplete_stats; |
| 57 | static unsigned long ibs_derived_event_stats; |
| 58 | |
| 59 | /* |
| 60 | * IBS Virtual Counter |
| 61 | */ |
| 62 | struct opd_event ibs_vc[OP_MAX_IBS_COUNTERS]; |
| 63 | |
| 64 | /* IBS Virtual Counter Index(VCI) Map*/ |
| 65 | unsigned int ibs_vci_map[OP_MAX_IBS_COUNTERS]; |
| 66 | |
| 67 | /** |
| 68 | * This function converts IBS fetch event flags and values into |
| 69 | * derived events. If the tagged (sampled) fetched caused a derived |
| 70 | * event, the derived event is tallied. |
| 71 | */ |
| 72 | static void opd_log_ibs_fetch(struct transient * trans) |
| 73 | { |
| 74 | struct ibs_fetch_sample * trans_fetch = ((struct ibs_sample*)(trans->ext))->fetch; |
| 75 | if (!trans_fetch) |
| 76 | return; |
| 77 | |
| 78 | trans_ibs_fetch(trans, ibs_fetch_selected_flag, ibs_fetch_selected_size); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | /** |
| 83 | * This function translates the IBS op event flags and values into |
| 84 | * IBS op derived events. If an op derived event occured, it's tallied. |
| 85 | */ |
| 86 | static void opd_log_ibs_op(struct transient * trans) |
| 87 | { |
| 88 | struct ibs_op_sample * trans_op = ((struct ibs_sample*)(trans->ext))->op; |
| 89 | if (!trans_op) |
| 90 | return; |
| 91 | |
| 92 | trans_ibs_op(trans, ibs_op_selected_flag, ibs_op_selected_size); |
| 93 | trans_ibs_op_ls(trans, ibs_op_ls_selected_flag, ibs_op_ls_selected_size); |
| 94 | trans_ibs_op_nb(trans, ibs_op_nb_selected_flag, ibs_op_nb_selected_size); |
| 95 | } |
| 96 | |
| 97 | |
| 98 | static void opd_put_ibs_sample(struct transient * trans) |
| 99 | { |
| 100 | unsigned long long event = 0; |
| 101 | struct kernel_image * k_image = NULL; |
| 102 | struct ibs_fetch_sample * trans_fetch = ((struct ibs_sample*)(trans->ext))->fetch; |
| 103 | |
| 104 | if (!enough_remaining(trans, 1)) { |
| 105 | trans->remaining = 0; |
| 106 | return; |
| 107 | } |
| 108 | |
| 109 | /* IBS can generate samples with invalid dcookie and |
| 110 | * in kernel address range. Map such samples to vmlinux |
| 111 | * only if the user either specifies a range, or vmlinux. |
| 112 | */ |
| 113 | if (trans->cookie == INVALID_COOKIE |
| 114 | && (k_image = find_kernel_image(trans)) != NULL |
| 115 | && (k_image->start != 0 && k_image->end != 0) |
| 116 | && trans->in_kernel == 0) |
| 117 | trans->in_kernel = 1; |
| 118 | |
| 119 | if (trans->tracing != TRACING_ON) |
| 120 | trans->event = event; |
| 121 | |
| 122 | /* sfile can change at each sample for kernel */ |
| 123 | if (trans->in_kernel != 0) |
| 124 | clear_trans_current(trans); |
| 125 | |
| 126 | if (!trans->in_kernel && trans->cookie == NO_COOKIE) |
| 127 | trans->anon = find_anon_mapping(trans); |
| 128 | |
| 129 | /* get the current sfile if needed */ |
| 130 | if (!trans->current) |
| 131 | trans->current = sfile_find(trans); |
| 132 | |
| 133 | /* |
| 134 | * can happen if kernel sample falls through the cracks, or if |
| 135 | * it's a sample from an anon region we couldn't find |
| 136 | */ |
| 137 | if (!trans->current) |
| 138 | goto out; |
| 139 | |
| 140 | if (trans_fetch) |
| 141 | opd_log_ibs_fetch(trans); |
| 142 | else |
| 143 | opd_log_ibs_op(trans); |
| 144 | out: |
| 145 | /* switch to trace mode */ |
| 146 | if (trans->tracing == TRACING_START) |
| 147 | trans->tracing = TRACING_ON; |
| 148 | |
| 149 | update_trans_last(trans); |
| 150 | } |
| 151 | |
| 152 | |
| 153 | void code_ibs_fetch_sample(struct transient * trans) |
| 154 | { |
| 155 | struct ibs_fetch_sample * trans_fetch = NULL; |
| 156 | |
| 157 | if (!enough_remaining(trans, 7)) { |
| 158 | verbprintf(vext, "not enough remaining\n"); |
| 159 | trans->remaining = 0; |
| 160 | ibs_fetch_incomplete_stats++; |
| 161 | return; |
| 162 | } |
| 163 | |
| 164 | ibs_fetch_sample_stats++; |
| 165 | |
| 166 | trans->ext = xmalloc(sizeof(struct ibs_sample)); |
| 167 | ((struct ibs_sample*)(trans->ext))->fetch = xmalloc(sizeof(struct ibs_fetch_sample)); |
| 168 | trans_fetch = ((struct ibs_sample*)(trans->ext))->fetch; |
| 169 | |
| 170 | trans_fetch->rip = pop_buffer_value(trans); |
| 171 | |
| 172 | trans_fetch->ibs_fetch_lin_addr_low = pop_buffer_value(trans); |
| 173 | trans_fetch->ibs_fetch_lin_addr_high = pop_buffer_value(trans); |
| 174 | |
| 175 | trans_fetch->ibs_fetch_ctl_low = pop_buffer_value(trans); |
| 176 | trans_fetch->ibs_fetch_ctl_high = pop_buffer_value(trans); |
| 177 | trans_fetch->ibs_fetch_phys_addr_low = pop_buffer_value(trans); |
| 178 | trans_fetch->ibs_fetch_phys_addr_high = pop_buffer_value(trans); |
| 179 | |
| 180 | verbprintf(vsamples, |
| 181 | "FETCH_X CPU:%ld PID:%ld RIP:%lx CTL_H:%x LAT:%d P_HI:%x P_LO:%x L_HI:%x L_LO:%x\n", |
| 182 | trans->cpu, |
| 183 | (long)trans->tgid, |
| 184 | trans_fetch->rip, |
| 185 | (trans_fetch->ibs_fetch_ctl_high >> 16) & 0x3ff, |
| 186 | (trans_fetch->ibs_fetch_ctl_high) & 0xffff, |
| 187 | trans_fetch->ibs_fetch_phys_addr_high, |
| 188 | trans_fetch->ibs_fetch_phys_addr_low, |
| 189 | trans_fetch->ibs_fetch_lin_addr_high, |
| 190 | trans_fetch->ibs_fetch_lin_addr_low) ; |
| 191 | |
| 192 | /* Overwrite the trans->pc with the more accurate trans_fetch->rip */ |
| 193 | trans->pc = trans_fetch->rip; |
| 194 | |
| 195 | opd_put_ibs_sample(trans); |
| 196 | |
| 197 | free(trans_fetch); |
| 198 | free(trans->ext); |
| 199 | trans->ext = NULL; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | void code_ibs_op_sample(struct transient * trans) |
| 204 | { |
| 205 | struct ibs_op_sample * trans_op= NULL; |
| 206 | |
| 207 | if (!enough_remaining(trans, 13)) { |
| 208 | verbprintf(vext, "not enough remaining\n"); |
| 209 | trans->remaining = 0; |
| 210 | ibs_op_incomplete_stats++; |
| 211 | return; |
| 212 | } |
| 213 | |
| 214 | ibs_op_sample_stats++; |
| 215 | |
| 216 | trans->ext = xmalloc(sizeof(struct ibs_sample)); |
| 217 | ((struct ibs_sample*)(trans->ext))->op = xmalloc(sizeof(struct ibs_op_sample)); |
| 218 | trans_op = ((struct ibs_sample*)(trans->ext))->op; |
| 219 | |
| 220 | trans_op->rip = pop_buffer_value(trans); |
| 221 | |
| 222 | trans_op->ibs_op_lin_addr_low = pop_buffer_value(trans); |
| 223 | trans_op->ibs_op_lin_addr_high = pop_buffer_value(trans); |
| 224 | |
| 225 | trans_op->ibs_op_data1_low = pop_buffer_value(trans); |
| 226 | trans_op->ibs_op_data1_high = pop_buffer_value(trans); |
| 227 | trans_op->ibs_op_data2_low = pop_buffer_value(trans); |
| 228 | trans_op->ibs_op_data2_high = pop_buffer_value(trans); |
| 229 | trans_op->ibs_op_data3_low = pop_buffer_value(trans); |
| 230 | trans_op->ibs_op_data3_high = pop_buffer_value(trans); |
| 231 | trans_op->ibs_op_ldst_linaddr_low = pop_buffer_value(trans); |
| 232 | trans_op->ibs_op_ldst_linaddr_high = pop_buffer_value(trans); |
| 233 | trans_op->ibs_op_phys_addr_low = pop_buffer_value(trans); |
| 234 | trans_op->ibs_op_phys_addr_high = pop_buffer_value(trans); |
| 235 | |
| 236 | verbprintf(vsamples, |
| 237 | "IBS_OP_X CPU:%ld PID:%d RIP:%lx D1HI:%x D1LO:%x D2LO:%x D3HI:%x D3LO:%x L_LO:%x P_LO:%x\n", |
| 238 | trans->cpu, |
| 239 | trans->tgid, |
| 240 | trans_op->rip, |
| 241 | trans_op->ibs_op_data1_high, |
| 242 | trans_op->ibs_op_data1_low, |
| 243 | trans_op->ibs_op_data2_low, |
| 244 | trans_op->ibs_op_data3_high, |
| 245 | trans_op->ibs_op_data3_low, |
| 246 | trans_op->ibs_op_ldst_linaddr_low, |
| 247 | trans_op->ibs_op_phys_addr_low); |
| 248 | |
| 249 | /* Overwrite the trans->pc with the more accurate trans_op->rip */ |
| 250 | trans->pc = trans_op->rip; |
| 251 | |
| 252 | opd_put_ibs_sample(trans); |
| 253 | |
| 254 | free(trans_op); |
| 255 | free(trans->ext); |
| 256 | trans->ext = NULL; |
| 257 | } |
| 258 | |
| 259 | |
| 260 | /** Convert IBS event to value used for data structure indexing */ |
| 261 | static unsigned long ibs_event_to_counter(unsigned long x) |
| 262 | { |
| 263 | unsigned long ret = ~0UL; |
| 264 | |
| 265 | if (IS_IBS_FETCH(x)) |
| 266 | ret = (x - IBS_FETCH_BASE); |
| 267 | else if (IS_IBS_OP(x)) |
| 268 | ret = (x - IBS_OP_BASE + IBS_FETCH_MAX); |
| 269 | else if (IS_IBS_OP_LS(x)) |
| 270 | ret = (x - IBS_OP_LS_BASE + IBS_OP_MAX + IBS_FETCH_MAX); |
| 271 | else if (IS_IBS_OP_NB(x)) |
| 272 | ret = (x - IBS_OP_NB_BASE + IBS_OP_LS_MAX + IBS_OP_MAX + IBS_FETCH_MAX); |
| 273 | |
| 274 | return (ret != ~0UL) ? ret + OP_MAX_COUNTERS : ret; |
| 275 | } |
| 276 | |
| 277 | |
| 278 | void opd_log_ibs_event(unsigned int event, |
| 279 | struct transient * trans) |
| 280 | { |
| 281 | ibs_derived_event_stats++; |
| 282 | trans->event = event; |
| 283 | sfile_log_sample_count(trans, 1); |
| 284 | } |
| 285 | |
| 286 | |
| 287 | void opd_log_ibs_count(unsigned int event, |
| 288 | struct transient * trans, |
| 289 | unsigned int count) |
| 290 | { |
| 291 | ibs_derived_event_stats++; |
| 292 | trans->event = event; |
| 293 | sfile_log_sample_count(trans, count); |
| 294 | } |
| 295 | |
| 296 | |
| 297 | static unsigned long get_ibs_vci_key(unsigned int event) |
| 298 | { |
| 299 | unsigned long key = ibs_event_to_counter(event); |
| 300 | if (key == ~0UL || key < OP_MAX_COUNTERS) |
| 301 | return ~0UL; |
| 302 | |
| 303 | key = key - OP_MAX_COUNTERS; |
| 304 | |
| 305 | return key; |
| 306 | } |
| 307 | |
| 308 | |
| 309 | static int ibs_parse_and_set_events(char * str) |
| 310 | { |
| 311 | char * tmp, * ptr, * tok1, * tok2 = NULL; |
| 312 | int is_done = 0; |
| 313 | struct op_event * event = NULL; |
| 314 | op_cpu cpu_type = CPU_NO_GOOD; |
| 315 | unsigned long key; |
| 316 | |
| 317 | if (!str) |
| 318 | return -1; |
| 319 | |
| 320 | cpu_type = op_get_cpu_type(); |
| 321 | op_events(cpu_type); |
| 322 | |
| 323 | tmp = op_xstrndup(str, strlen(str)); |
| 324 | ptr = tmp; |
| 325 | |
| 326 | while (is_done != 1 |
| 327 | && (tok1 = strtok_r(ptr, ",", &tok2)) != NULL) { |
| 328 | |
| 329 | if ((ptr = strstr(tok1, ":")) != NULL) { |
| 330 | *ptr = '\0'; |
| 331 | is_done = 1; |
| 332 | } |
| 333 | |
| 334 | // Resove event number |
| 335 | event = find_event_by_name(tok1, 0, 0); |
| 336 | if (!event) |
| 337 | return -1; |
| 338 | |
| 339 | // Grouping |
| 340 | if (IS_IBS_FETCH(event->val)) { |
| 341 | ibs_fetch_selected_flag |= 1 << IBS_FETCH_OFFSET(event->val); |
| 342 | ibs_fetch_selected_size++; |
| 343 | } else if (IS_IBS_OP(event->val)) { |
| 344 | ibs_op_selected_flag |= 1 << IBS_OP_OFFSET(event->val); |
| 345 | ibs_op_selected_size++; |
| 346 | } else if (IS_IBS_OP_LS(event->val)) { |
| 347 | ibs_op_ls_selected_flag |= 1 << IBS_OP_LS_OFFSET(event->val); |
| 348 | ibs_op_ls_selected_size++; |
| 349 | } else if (IS_IBS_OP_NB(event->val)) { |
| 350 | ibs_op_nb_selected_flag |= 1 << IBS_OP_NB_OFFSET(event->val); |
| 351 | ibs_op_nb_selected_size++; |
| 352 | } else { |
| 353 | return -1; |
| 354 | } |
| 355 | |
| 356 | key = get_ibs_vci_key(event->val); |
| 357 | if (key == ~0UL) |
| 358 | return -1; |
| 359 | |
| 360 | ibs_vci_map[key] = ibs_selected_size; |
| 361 | |
| 362 | /* Initialize part of ibs_vc */ |
| 363 | ibs_vc[ibs_selected_size].name = tok1; |
| 364 | ibs_vc[ibs_selected_size].value = event->val; |
| 365 | ibs_vc[ibs_selected_size].counter = ibs_selected_size + OP_MAX_COUNTERS; |
| 366 | ibs_vc[ibs_selected_size].kernel = 1; |
| 367 | ibs_vc[ibs_selected_size].user = 1; |
| 368 | |
| 369 | ibs_selected_size++; |
| 370 | |
| 371 | ptr = NULL; |
| 372 | } |
| 373 | |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | |
| 378 | static int ibs_parse_counts(char * str, unsigned long int * count) |
| 379 | { |
| 380 | char * tmp, * tok1, * tok2 = NULL, *end = NULL; |
| 381 | if (!str) |
| 382 | return -1; |
| 383 | |
| 384 | tmp = op_xstrndup(str, strlen(str)); |
| 385 | tok1 = strtok_r(tmp, ":", &tok2); |
| 386 | *count = strtoul(tok1, &end, 10); |
| 387 | if ((end && *end) || *count == 0 |
| 388 | || errno == EINVAL || errno == ERANGE) { |
| 389 | fprintf(stderr,"Invalid count (%s)\n", str); |
| 390 | return -1; |
| 391 | } |
| 392 | |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | |
| 397 | static int ibs_parse_and_set_um_fetch(char const * str) |
| 398 | { |
| 399 | if (!str) |
| 400 | return -1; |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | |
| 405 | |
| 406 | static int ibs_parse_and_set_um_op(char const * str, unsigned long int * ibs_op_um) |
| 407 | { |
| 408 | char * end = NULL; |
| 409 | if (!str) |
| 410 | return -1; |
| 411 | |
| 412 | *ibs_op_um = strtoul(str, &end, 16); |
| 413 | if ((end && *end) || errno == EINVAL || errno == ERANGE) { |
| 414 | fprintf(stderr,"Invalid unitmaks (%s)\n", str); |
| 415 | return -1; |
| 416 | } |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | |
| 421 | static int ibs_init(char const * argv) |
| 422 | { |
| 423 | char * tmp, * ptr, * tok1, * tok2 = NULL; |
| 424 | unsigned int i = 0; |
| 425 | unsigned long int ibs_fetch_count = 0; |
| 426 | unsigned long int ibs_op_count = 0; |
| 427 | unsigned long int ibs_op_um = 0; |
| 428 | |
| 429 | if (!argv) |
| 430 | return -1; |
| 431 | |
| 432 | if (empty_line(argv) != 0) |
| 433 | return -1; |
| 434 | |
| 435 | tmp = op_xstrndup(argv, strlen(argv)); |
| 436 | ptr = (char *) skip_ws(tmp); |
| 437 | |
| 438 | // "fetch:event1,event2,....:count:um|op:event1,event2,.....:count:um" |
| 439 | tok1 = strtok_r(ptr, "|", &tok2); |
| 440 | |
| 441 | while (tok1 != NULL) { |
| 442 | |
| 443 | if (!strncmp("fetch:", tok1, strlen("fetch:"))) { |
| 444 | // Get to event section |
| 445 | tok1 = tok1 + strlen("fetch:"); |
| 446 | if (ibs_parse_and_set_events(tok1) == -1) |
| 447 | return -1; |
| 448 | |
| 449 | // Get to count section |
| 450 | while (tok1) { |
| 451 | if (*tok1 == '\0') |
| 452 | return -1; |
| 453 | if (*tok1 != ':') { |
| 454 | tok1++; |
| 455 | } else { |
| 456 | tok1++; |
| 457 | break; |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | if (ibs_parse_counts(tok1, &ibs_fetch_count) == -1) |
| 462 | return -1; |
| 463 | |
| 464 | // Get to um section |
| 465 | while (tok1) { |
| 466 | if (*tok1 == '\0') |
| 467 | return -1; |
| 468 | if (*tok1 != ':') { |
| 469 | tok1++; |
| 470 | } else { |
| 471 | tok1++; |
| 472 | break; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | if (ibs_parse_and_set_um_fetch(tok1) == -1) |
| 477 | return -1; |
| 478 | |
| 479 | } else if (!strncmp("op:", tok1, strlen("op:"))) { |
| 480 | // Get to event section |
| 481 | tok1 = tok1 + strlen("op:"); |
| 482 | if (ibs_parse_and_set_events(tok1) == -1) |
| 483 | return -1; |
| 484 | |
| 485 | // Get to count section |
| 486 | while (tok1) { |
| 487 | if (*tok1 == '\0') |
| 488 | return -1; |
| 489 | if (*tok1 != ':') { |
| 490 | tok1++; |
| 491 | } else { |
| 492 | tok1++; |
| 493 | break; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | if (ibs_parse_counts(tok1, &ibs_op_count) == -1) |
| 498 | return -1; |
| 499 | |
| 500 | // Get to um section |
| 501 | while (tok1) { |
| 502 | if (*tok1 == '\0') |
| 503 | return -1; |
| 504 | if (*tok1 != ':') { |
| 505 | tok1++; |
| 506 | } else { |
| 507 | tok1++; |
| 508 | break; |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | if (ibs_parse_and_set_um_op(tok1, &ibs_op_um)) |
| 513 | return -1; |
| 514 | |
| 515 | } else |
| 516 | return -1; |
| 517 | |
| 518 | tok1 = strtok_r(NULL, "|", &tok2); |
| 519 | } |
| 520 | |
| 521 | /* Initialize ibs_vc */ |
| 522 | for (i = 0 ; i < ibs_selected_size ; i++) |
| 523 | { |
| 524 | if (IS_IBS_FETCH(ibs_vc[i].value)) { |
| 525 | ibs_vc[i].count = ibs_fetch_count; |
| 526 | ibs_vc[i].um = 0; |
| 527 | } else { |
| 528 | ibs_vc[i].count = ibs_op_count; |
| 529 | ibs_vc[i].um = ibs_op_um; |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | // Allow no event |
| 534 | no_event_ok = 1; |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | |
| 539 | static int ibs_print_stats() |
| 540 | { |
| 541 | printf("Nr. IBS Fetch samples : %lu (%lu entries)\n", ibs_fetch_sample_stats, (ibs_fetch_sample_stats * 7)); |
| 542 | printf("Nr. IBS Fetch incompletes : %lu\n", ibs_fetch_incomplete_stats); |
| 543 | printf("Nr. IBS Op samples : %lu (%lu entries)\n", ibs_op_sample_stats, (ibs_op_sample_stats * 13)); |
| 544 | printf("Nr. IBS Op incompletes : %lu\n", ibs_op_incomplete_stats); |
| 545 | printf("Nr. IBS derived events : %lu\n", ibs_derived_event_stats); |
| 546 | return 0; |
| 547 | } |
| 548 | |
| 549 | |
| 550 | static int ibs_sfile_create(struct sfile * sf) |
| 551 | { |
| 552 | unsigned int i; |
| 553 | sf->ext_files = xmalloc(ibs_selected_size * sizeof(odb_t)); |
| 554 | for (i = 0 ; i < ibs_selected_size ; ++i) |
| 555 | odb_init(&sf->ext_files[i]); |
| 556 | |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | |
| 561 | static int ibs_sfile_dup (struct sfile * to, struct sfile * from) |
| 562 | { |
| 563 | unsigned int i; |
| 564 | if (from->ext_files != NULL) { |
| 565 | to->ext_files = xmalloc(ibs_selected_size * sizeof(odb_t)); |
| 566 | for (i = 0 ; i < ibs_selected_size ; ++i) |
| 567 | odb_init(&to->ext_files[i]); |
| 568 | } else { |
| 569 | to->ext_files = NULL; |
| 570 | } |
| 571 | return 0; |
| 572 | } |
| 573 | |
| 574 | static int ibs_sfile_close(struct sfile * sf) |
| 575 | { |
| 576 | unsigned int i; |
| 577 | if (sf->ext_files != NULL) { |
| 578 | for (i = 0; i < ibs_selected_size ; ++i) |
| 579 | odb_close(&sf->ext_files[i]); |
| 580 | |
| 581 | free(sf->ext_files); |
| 582 | sf->ext_files= NULL; |
| 583 | } |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | static int ibs_sfile_sync(struct sfile * sf) |
| 588 | { |
| 589 | unsigned int i; |
| 590 | if (sf->ext_files != NULL) { |
| 591 | for (i = 0; i < ibs_selected_size ; ++i) |
| 592 | odb_sync(&sf->ext_files[i]); |
| 593 | } |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | static odb_t * ibs_sfile_get(struct transient const * trans, int is_cg) |
| 598 | { |
| 599 | struct sfile * sf = trans->current; |
| 600 | struct sfile * last = trans->last; |
| 601 | struct cg_entry * cg; |
| 602 | struct list_head * pos; |
| 603 | unsigned long hash; |
| 604 | odb_t * file; |
| 605 | unsigned long counter, ibs_vci, key; |
| 606 | |
| 607 | /* Note: "trans->event" for IBS is not the same as traditional |
| 608 | * events. Here, it has the actual event (0xfxxx), while the |
| 609 | * traditional event has the event index. |
| 610 | */ |
| 611 | key = get_ibs_vci_key(trans->event); |
| 612 | if (key == ~0UL) { |
| 613 | fprintf(stderr, "%s: Invalid IBS event %lu\n", __func__, trans->event); |
| 614 | abort(); |
| 615 | } |
| 616 | ibs_vci = ibs_vci_map[key]; |
| 617 | counter = ibs_vci + OP_MAX_COUNTERS; |
| 618 | |
| 619 | /* Creating IBS sfile if it not already exists */ |
| 620 | if (sf->ext_files == NULL) |
| 621 | ibs_sfile_create(sf); |
| 622 | |
| 623 | file = &(sf->ext_files[ibs_vci]); |
| 624 | if (!is_cg) |
| 625 | goto open; |
| 626 | |
| 627 | hash = last->hashval & (CG_HASH_SIZE - 1); |
| 628 | |
| 629 | /* Need to look for the right 'to'. Since we're looking for |
| 630 | * 'last', we use its hash. |
| 631 | */ |
| 632 | list_for_each(pos, &sf->cg_hash[hash]) { |
| 633 | cg = list_entry(pos, struct cg_entry, hash); |
| 634 | if (sfile_equal(last, &cg->to)) { |
| 635 | file = &(cg->to.ext_files[ibs_vci]); |
| 636 | goto open; |
| 637 | } |
| 638 | } |
| 639 | |
| 640 | cg = xmalloc(sizeof(struct cg_entry)); |
| 641 | sfile_dup(&cg->to, last); |
| 642 | list_add(&cg->hash, &sf->cg_hash[hash]); |
| 643 | file = &(cg->to.ext_files[ibs_vci]); |
| 644 | |
| 645 | open: |
| 646 | if (!odb_open_count(file)) |
| 647 | opd_open_sample_file(file, last, sf, counter, is_cg); |
| 648 | |
| 649 | /* Error is logged by opd_open_sample_file */ |
| 650 | if (!odb_open_count(file)) |
| 651 | return NULL; |
| 652 | |
| 653 | return file; |
| 654 | } |
| 655 | |
| 656 | |
| 657 | /** Filled opd_event structure with IBS derived event information |
| 658 | * from the given counter value. |
| 659 | */ |
| 660 | static struct opd_event * ibs_sfile_find_counter_event(unsigned long counter) |
| 661 | { |
| 662 | unsigned long ibs_vci; |
| 663 | |
| 664 | if (counter >= OP_MAX_COUNTERS + OP_MAX_IBS_COUNTERS |
| 665 | || counter < OP_MAX_COUNTERS) { |
| 666 | fprintf(stderr,"Error: find_ibs_counter_event : " |
| 667 | "invalid counter value %lu.\n", counter); |
| 668 | abort(); |
| 669 | } |
| 670 | |
| 671 | ibs_vci = counter - OP_MAX_COUNTERS; |
| 672 | return &ibs_vc[ibs_vci]; |
| 673 | } |
| 674 | |
| 675 | |
| 676 | struct opd_ext_sfile_handlers ibs_sfile_handlers = |
| 677 | { |
| 678 | .create = &ibs_sfile_create, |
| 679 | .dup = &ibs_sfile_dup, |
| 680 | .close = &ibs_sfile_close, |
| 681 | .sync = &ibs_sfile_sync, |
| 682 | .get = &ibs_sfile_get, |
| 683 | .find_counter_event = &ibs_sfile_find_counter_event |
| 684 | }; |
| 685 | |
| 686 | |
| 687 | struct opd_ext_handlers ibs_handlers = |
| 688 | { |
| 689 | .ext_init = &ibs_init, |
| 690 | .ext_print_stats = &ibs_print_stats, |
| 691 | .ext_sfile = &ibs_sfile_handlers |
| 692 | }; |