diff options
Diffstat (limited to 'include/uapi/linux/perf_event.h')
-rw-r--r-- | include/uapi/linux/perf_event.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 9269de254874..9d845404d875 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h | |||
@@ -364,7 +364,7 @@ struct perf_event_mmap_page { | |||
364 | /* | 364 | /* |
365 | * Bits needed to read the hw events in user-space. | 365 | * Bits needed to read the hw events in user-space. |
366 | * | 366 | * |
367 | * u32 seq, time_mult, time_shift, idx, width; | 367 | * u32 seq, time_mult, time_shift, index, width; |
368 | * u64 count, enabled, running; | 368 | * u64 count, enabled, running; |
369 | * u64 cyc, time_offset; | 369 | * u64 cyc, time_offset; |
370 | * s64 pmc = 0; | 370 | * s64 pmc = 0; |
@@ -383,11 +383,11 @@ struct perf_event_mmap_page { | |||
383 | * time_shift = pc->time_shift; | 383 | * time_shift = pc->time_shift; |
384 | * } | 384 | * } |
385 | * | 385 | * |
386 | * idx = pc->index; | 386 | * index = pc->index; |
387 | * count = pc->offset; | 387 | * count = pc->offset; |
388 | * if (pc->cap_usr_rdpmc && idx) { | 388 | * if (pc->cap_user_rdpmc && index) { |
389 | * width = pc->pmc_width; | 389 | * width = pc->pmc_width; |
390 | * pmc = rdpmc(idx - 1); | 390 | * pmc = rdpmc(index - 1); |
391 | * } | 391 | * } |
392 | * | 392 | * |
393 | * barrier(); | 393 | * barrier(); |
@@ -415,7 +415,7 @@ struct perf_event_mmap_page { | |||
415 | }; | 415 | }; |
416 | 416 | ||
417 | /* | 417 | /* |
418 | * If cap_usr_rdpmc this field provides the bit-width of the value | 418 | * If cap_user_rdpmc this field provides the bit-width of the value |
419 | * read using the rdpmc() or equivalent instruction. This can be used | 419 | * read using the rdpmc() or equivalent instruction. This can be used |
420 | * to sign extend the result like: | 420 | * to sign extend the result like: |
421 | * | 421 | * |
@@ -439,10 +439,10 @@ struct perf_event_mmap_page { | |||
439 | * | 439 | * |
440 | * Where time_offset,time_mult,time_shift and cyc are read in the | 440 | * Where time_offset,time_mult,time_shift and cyc are read in the |
441 | * seqcount loop described above. This delta can then be added to | 441 | * seqcount loop described above. This delta can then be added to |
442 | * enabled and possible running (if idx), improving the scaling: | 442 | * enabled and possible running (if index), improving the scaling: |
443 | * | 443 | * |
444 | * enabled += delta; | 444 | * enabled += delta; |
445 | * if (idx) | 445 | * if (index) |
446 | * running += delta; | 446 | * running += delta; |
447 | * | 447 | * |
448 | * quot = count / running; | 448 | * quot = count / running; |