linux-kernel - Re: [RFC PATCH 09/10] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension

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Message-ID: <891006af-9b82-59e8-b91e-ccf1399726a0@arm.com>
Date:   Thu, 12 Jan 2017 11:31:55 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Kim Phillips <kim.phillips@....com>,
        Will Deacon <will.deacon@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, mark.rutland@....com,
        alex.bennee@...aro.org, christoffer.dall@...aro.org,
        tglx@...utronix.de, peterz@...radead.org,
        alexander.shishkin@...ux.intel.com, robh@...nel.org,
        suzuki.poulose@....com, pawel.moll@....com,
        mathieu.poirier@...aro.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 09/10] drivers/perf: Add support for ARMv8.2
 Statistical Profiling Extension

On 10/01/17 22:04, Kim Phillips wrote:
> On Tue, 3 Jan 2017 18:10:26 +0000
> Will Deacon <will.deacon@....com> wrote:
> 
>> +#define DRVNAME				"arm_spe_pmu"
> 
> Based on Intel naming "intel_pt" and "intel_bts', I had expected
> "arm-spe" as the universal basename for SPE.  I don't really care about
> whether '_pmu' is included, but it's yet another naming inconsistency we
> have with coresight's "cs_etm" (the other being prefixed with "arm_").
> 
> Also, nit, since I don't know why perf userspace tools can't handle
> dashes in PMU names (commit 3d1ff755e367 "arm: perf: clean up PMU
> names" doesn't say), can we at least start to use dashes in our
> filenames?  arm-spe-pmu.c is easier to type than arm_spe_pmu.c.

Fortunately, not everyone is using a UK/US keyboard... ;-)

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...