diff options
| author | Sandipan Das <sandipan.das@amd.com> | 2025-04-18 09:13:00 +0530 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-04-18 10:35:33 +0200 |
| commit | 05c9b0cbe4b822c42382d27e3f73918600594882 (patch) | |
| tree | d36d9cc642540ab985c47cb500da17c4f43a969c /scripts/lib/kdoc/kdoc_files.py | |
| parent | 4f81cc2d1bf91a49d33eb6578b58db2518deef01 (diff) | |
perf/x86/intel/uncore: Use HRTIMER_MODE_HARD for detecting overflows
hrtimer handlers can be deferred to softirq context and affect timely
detection of counter overflows. Hence switch to HRTIMER_MODE_HARD.
Disabling and re-enabling IRQs in the hrtimer handler is not required
as pmu->start() and pmu->stop() can no longer intervene while updating
event->hw.prev_count.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/0ad4698465077225769e8edd5b2c7e8f48f636d5.1744906694.git.sandipan.das@amd.com
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions