linux-kernel - Re: [PATCH 0/2] arm64 SMMUv3 PMU driver with IORT support

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Message-ID: <394bd3b8-2583-01fa-02d3-6a49c2a6a6c0@linaro.org>
Date:   Wed, 9 Aug 2017 15:56:13 +0800
From:   Hanjun Guo <hanjun.guo@...aro.org>
To:     Neil Leeder <nleeder@...eaurora.org>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>
Cc:     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>,
        Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH 0/2] arm64 SMMUv3 PMU driver with IORT support

Hi Neil,

On 2017/8/5 3:59, Neil Leeder wrote:
> This adds a driver for the SMMUv3 PMU into the perf framework.
> It includes an IORT update to support PM Counter Groups.
> 
> IORT has no mechanism for determining device names so PMUs
> are named based on their physical address.
> 
> Tested on Qualcomm QDF2400. perf_fuzzer ran for 4+ hours
> with no failures.
> 
> Neil Leeder (2):
>    acpi: arm64: add iort support for PMCG
>    perf: add arm64 smmuv3 pmu driver
> 
>   drivers/acpi/arm64/iort.c     |  54 +++

I would like to be Cced for next version.

>   drivers/perf/Kconfig          |   9 +
>   drivers/perf/Makefile         |   1 +
>   drivers/perf/arm_smmuv3_pmu.c | 823 ++++++++++++++++++++++++++++++++++++++++++
>   include/acpi/actbl2.h         |   9 +-

Do you have the acpica support code? I'm currently
working on SMMUv3 MSI support and I would like to test
it with MSI support for PMCG as well.

Thanks
Hanjun

>   5 files changed, 895 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/perf/arm_smmuv3_pmu.c
>