Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable

From	"Suzuki K. Poulose" <Suzuki.Poulose@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable
Date	2016-01-11 19:20 +0100
Message-ID	<qPPer-64H-25@gated-at.bofh.it> (permalink)
References	(2 earlier) <qNiZk-7GT-11@gated-at.bofh.it> <qNwzg-j5-11@gated-at.bofh.it> <qPIcX-17S-25@gated-at.bofh.it> <qPIwj-1vs-39@gated-at.bofh.it> <qPIPE-1Dk-35@gated-at.bofh.it>
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On 11/01/16 11:24, Mark Rutland wrote:
> On Mon, Jan 11, 2016 at 11:08:27AM +0000, Suzuki K. Poulose wrote:
>> On 11/01/16 10:46, Mark Rutland wrote:
>>> On Tue, Jan 05, 2016 at 09:59:13AM +0000, Suzuki K. Poulose wrote:
>>>> On 04/01/16 19:24, Mark Rutland wrote:
>> Hence, didn't want to change it for CCI. We could use the batching
>> logic, if decide to do so. I can go ahead with that if there are no
>> other side effects with that.
>
> We'll lose events regardless as our RMW sequence will race against the
> counters. Batching will make that window slightly larger, but other than
> that I don't see a problem.

OK, will do that.

Cheers
Suzuki

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[PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable "Suzuki K. Poulose" <suzuki.poulose@arm.com> - 2016-01-04 13:00 +0100
  Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable Mark Rutland <mark.rutland@arm.com> - 2016-01-04 20:30 +0100
    Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-01-05 11:00 +0100
      Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable Mark Rutland <mark.rutland@arm.com> - 2016-01-11 11:50 +0100
        Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-01-11 12:10 +0100
          Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable Mark Rutland <mark.rutland@arm.com> - 2016-01-11 12:30 +0100
            Re: [PATCH v5 05/11] arm-cci PMU: Delay counter writes to pmu_enable "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-01-11 19:20 +0100

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