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Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events

From Will Deacon <will.deacon@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events
Date 2016-02-15 21:10 +0100
Message-ID <r2xD4-5Wh-17@gated-at.bofh.it> (permalink)
References <qY9fY-4Sx-3@gated-at.bofh.it> <qY9fY-4Sx-17@gated-at.bofh.it> <r2xjJ-5z4-35@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Feb 15, 2016 at 07:40:37PM +0000, Will Deacon wrote:
> On Wed, Feb 03, 2016 at 06:11:56PM +0100, Jan Glauber wrote:
> > The implemented Cortex A57 events are not A57 specific.
> > They are recommended by ARM and can be found on other
> > ARMv8 SOCs like Cavium ThunderX too. Therefore move
> > these events to the common PMUv3 table.
> 
> I can't find anything in the architecture that suggests these event
> numbers are necessarily portable between implementations. Am I missing
> something?

Aha, I just noticed appendix K3.1 (silly me for missing it...).

Lemme check whether or not that mandates that those encodings can't be
used for wildly different things.

Will

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Thread

Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events Will Deacon <will.deacon@arm.com> - 2016-02-15 20:50 +0100
  Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events Will Deacon <will.deacon@arm.com> - 2016-02-15 21:10 +0100
    Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events Jan Glauber <jan.glauber@caviumnetworks.com> - 2016-02-18 10:30 +0100
      Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events Will Deacon <will.deacon@arm.com> - 2016-02-18 12:30 +0100
        Re: [PATCH v3 1/5] arm64/perf: Rename Cortex A57 events Jan Glauber <jan.glauber@caviumnetworks.com> - 2016-02-18 14:50 +0100

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