linux-kernel - Re: [PATCH V2] perf: qcom: Add L3 cache PMU driver

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Message-ID: <09a4f5a1-d306-43db-ce7e-03c5c87440c4@codeaurora.org>
Date:   Fri, 24 Feb 2017 15:58:14 -0600
From:   Timur Tabi <timur@...eaurora.org>
To:     Agustin Vega-Frias <agustinv@...eaurora.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     nleeder@...eaurora.org, agross@...eaurora.org, jcm@...hat.com,
        msalter@...hat.com, mlangsdo@...hat.com, ahs3@...hat.com
Subject: Re: [PATCH V2] perf: qcom: Add L3 cache PMU driver

On 02/16/2017 09:03 AM, Agustin Vega-Frias wrote:
> +config QCOM_L3_PMU
> +	 bool "Qualcomm Technologies L3-cache PMU"
> +	 depends on ARCH_QCOM && ARM64 && PERF_EVENTS && ACPI
> +	   help
> +	   Provides support for the L3 cache performance monitor unit (PMU)
> +	   in Qualcomm Technologies processors.
> +	   Adds the L3 cache PMU into the perf events subsystem for
> +	   monitoring L3 cache events.

Since the L3 PMU driver doesn't work without the IRQ combiner driver, I think 
you need to add:

     select QCOM_IRQ_COMBINER

or

     depends on QCOM_IRQ_COMBINER

-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc.  Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.