diff options
| author | Patrick Fay <pfay@codeaurora.org> | 2017-04-14 10:14:02 -0700 |
|---|---|---|
| committer | Patrick Fay <pfay@codeaurora.org> | 2017-04-14 10:24:02 -0700 |
| commit | c079e157fd833cf3650705dc5caea5dd867e55f8 (patch) | |
| tree | 5f405919c54c1864522f442a46d3d3a66beff510 /include/linux | |
| parent | 406ab7d2d4f3a72f3ef1dd10f894e6c88ee3ac01 (diff) | |
Perf: arm64: disable irq for hotplug offline
Currently the hotplug notifier calls cpu_pmu_enable_percpu_irq
when a CPU comes online. The notifier doesn't have a corresponding
call to cpu_pmu_disable_percpu_irq when the CPU goes offline.
Change the code to follow what was done in 3.18 including
tracking whether the PMU is active and the IRQ number in use.
Change-Id: I1835fb543eb483713a30eb6c0ccd4e4a4b9908be
Signed-off-by: Patrick Fay <pfay@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/perf/arm_pmu.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 654bb97a3188..5bc4836af286 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -77,6 +77,12 @@ struct pmu_hw_events { struct arm_pmu *percpu_pmu; }; +enum armpmu_pmu_states { + ARM_PMU_STATE_OFF, + ARM_PMU_STATE_RUNNING, + ARM_PMU_STATE_GOING_DOWN, +}; + struct arm_pmu { struct pmu pmu; cpumask_t active_irqs; @@ -101,6 +107,8 @@ struct arm_pmu { void (*free_irq)(struct arm_pmu *); int (*map_event)(struct perf_event *event); int num_events; + int pmu_state; + int percpu_irq; atomic_t active_events; struct mutex reserve_mutex; u64 max_period; |