diff options
| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2023-11-15 10:28:05 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-12-05 13:40:59 +0100 |
| commit | 118eb89b1e7f6807776c012cffc5c9b07fd26164 (patch) | |
| tree | f7575433210db8e88bc45084211b539da0fe3593 | |
| parent | arm: perf: Remove PMU locking (diff) | |
| download | linux-118eb89b1e7f6807776c012cffc5c9b07fd26164.tar.xz linux-118eb89b1e7f6807776c012cffc5c9b07fd26164.zip | |
drivers: perf: arm_pmu: Drop 'pmu_lock' element from 'struct pmu_hw_events'
As 'pmu_lock' element is not being used in any ARM PMU implementation, just
drop this from 'struct pmu_hw_events'.
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20231115092805.737822-3-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | drivers/perf/arm_pmu.c | 1 | ||||
| -rw-r--r-- | include/linux/perf/arm_pmu.h | 6 |
2 files changed, 0 insertions, 7 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index d712a19e47ac..379479b50bdd 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -893,7 +893,6 @@ struct arm_pmu *armpmu_alloc(void) struct pmu_hw_events *events; events = per_cpu_ptr(pmu->hw_events, cpu); - raw_spin_lock_init(&events->pmu_lock); events->percpu_pmu = pmu; } diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 143fbc10ecfe..e2503d48ddee 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -60,12 +60,6 @@ struct pmu_hw_events { DECLARE_BITMAP(used_mask, ARMPMU_MAX_HWEVENTS); /* - * Hardware lock to serialize accesses to PMU registers. Needed for the - * read/modify/write sequences. - */ - raw_spinlock_t pmu_lock; - - /* * When using percpu IRQs, we need a percpu dev_id. Place it here as we * already have to allocate this struct per cpu. */ |