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SubjectRe: [PATCH 1/6] arc,perf: Use common PMU interrupt disabled code
Date
On Sunday 15 June 2014 11:25 AM, Vince Weaver wrote:
> Transition to using the new generic PERF_PMU_CAP_NO_INTERRUPT method for
> failing a sampling event when no PMU interrupt is available.
>
> Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>

Acked-by: Vineet Gupta <vgupta@synopsys.com>

Thx,
-Vineet

>
> diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
> index 63177e4..b9a5685 100644
> --- a/arch/arc/kernel/perf_event.c
> +++ b/arch/arc/kernel/perf_event.c
> @@ -99,10 +99,6 @@ static int arc_pmu_event_init(struct perf_event *event)
> struct hw_perf_event *hwc = &event->hw;
> int ret;
>
> - /* ARC 700 PMU does not support sampling events */
> - if (is_sampling_event(event))
> - return -ENOENT;
> -
> switch (event->attr.type) {
> case PERF_TYPE_HARDWARE:
> if (event->attr.config >= PERF_COUNT_HW_MAX)
> @@ -298,6 +294,9 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
> .read = arc_pmu_read,
> };
>
> + /* ARC 700 PMU does not support sampling events */
> + arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
> +
> ret = perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW);
>
> return ret;
>



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