| 331 | } |
| 332 | |
| 333 | static int |
| 334 | perfmon_ioctl(struct cdev *dev, u_long cmd, caddr_t param, int flags, struct thread *td) |
| 335 | { |
| 336 | struct pmc *pmc; |
| 337 | struct pmc_data *pmcd; |
| 338 | struct pmc_tstamp *pmct; |
| 339 | uint64_t freq; |
| 340 | int *ip; |
| 341 | int rv; |
| 342 | |
| 343 | switch(cmd) { |
| 344 | case PMIOSETUP: |
| 345 | if (!(flags & FWRITE)) |
| 346 | return EPERM; |
| 347 | pmc = (struct pmc *)param; |
| 348 | |
| 349 | rv = perfmon_setup(pmc->pmc_num, pmc->pmc_val); |
| 350 | if (!rv) { |
| 351 | writerpmc |= (1 << pmc->pmc_num); |
| 352 | } |
| 353 | break; |
| 354 | |
| 355 | case PMIOGET: |
| 356 | pmc = (struct pmc *)param; |
| 357 | rv = perfmon_get(pmc->pmc_num, &pmc->pmc_val); |
| 358 | break; |
| 359 | |
| 360 | case PMIOSTART: |
| 361 | if (!(flags & FWRITE)) |
| 362 | return EPERM; |
| 363 | |
| 364 | ip = (int *)param; |
| 365 | rv = perfmon_start(*ip); |
| 366 | break; |
| 367 | |
| 368 | case PMIOSTOP: |
| 369 | if (!(flags & FWRITE)) |
| 370 | return EPERM; |
| 371 | |
| 372 | ip = (int *)param; |
| 373 | rv = perfmon_stop(*ip); |
| 374 | break; |
| 375 | |
| 376 | case PMIORESET: |
| 377 | if (!(flags & FWRITE)) |
| 378 | return EPERM; |
| 379 | |
| 380 | ip = (int *)param; |
| 381 | rv = perfmon_reset(*ip); |
| 382 | break; |
| 383 | |
| 384 | case PMIOREAD: |
| 385 | pmcd = (struct pmc_data *)param; |
| 386 | rv = perfmon_read(pmcd->pmcd_num, &pmcd->pmcd_value); |
| 387 | break; |
| 388 | |
| 389 | case PMIOTSTAMP: |
| 390 | freq = atomic_load_acq_64(&tsc_freq); |
nothing calls this directly
no test coverage detected