linux-kernel - Re: [PATCH v8] perf: add qcom l2 cache perf events driver

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Date:   Sun, 29 Jan 2017 22:16:36 -0500
From:   "Leeder, Neil" <nleeder@...eaurora.org>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Mark Langsdorf <mlangsdo@...hat.com>,
        Mark Salter <msalter@...hat.com>, Jon Masters <jcm@...hat.com>,
        Timur Tabi <timur@...eaurora.org>, cov@...eaurora.org,
        nleeder@...eaurora.org
Subject: Re: [PATCH v8] perf: add qcom l2 cache perf events driver

Has anyone had a chance to look at this yet - I'd appreciate any comments.

Thanks,
Neil

On 1/16/2017 1:52 PM, Neil Leeder wrote:
> Adds perf events support for L2 cache PMU.
>
> The L2 cache PMU driver is named 'l2cache_0' and can be used
> with perf events to profile L2 events such as cache hits
> and misses on Qualcomm Technologies processors.
>
> Signed-off-by: Neil Leeder <nleeder@...eaurora.org>
> ---
> v8:
> Various style changes for function names & code restructuring
> Replace dev_warn with ratelimited debug prints
> Move hotplug registration before PMU registration
> Reload counters with a fixed value
> Add column-exclusion check for events in same group
> Rebase on 4.10-rc3