diff options
Diffstat (limited to 'tools/perf/design.txt')
| -rw-r--r-- | tools/perf/design.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/design.txt b/tools/perf/design.txt index f1946d107b10..fdd42a824c98 100644 --- a/tools/perf/design.txt +++ b/tools/perf/design.txt | |||
| @@ -455,3 +455,6 @@ will need at least this: | |||
| 455 | 455 | ||
| 456 | If your architecture does have hardware capabilities, you can override the | 456 | If your architecture does have hardware capabilities, you can override the |
| 457 | weak stub hw_perf_event_init() to register hardware counters. | 457 | weak stub hw_perf_event_init() to register hardware counters. |
| 458 | |||
| 459 | Architectures that have d-cache aliassing issues, such as Sparc and ARM, | ||
| 460 | should select PERF_USE_VMALLOC in order to avoid these for perf mmap(). | ||