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

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Message-ID: <67a696ad-98e9-d505-1d73-7246d2efc398@codeaurora.org>
Date:   Thu, 10 Aug 2017 23:28:30 -0400
From:   "Leeder, Neil" <nleeder@...eaurora.org>
To:     Hanjun Guo <hanjun.guo@...aro.org>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>
Cc:     nleeder@...eaurora.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>,
        Mark Brown <broonie@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH 0/2] arm64 SMMUv3 PMU driver with IORT support

On 8/9/2017 9:26 PM, Hanjun Guo wrote:
> On 2017/8/9 23:48, Leeder, Neil wrote:
>>>>    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.
>> I don't have any code other than what was posted here.
>> What additional ACPICA support code is needed?
> 
> Sorry for not clear, I mean the acpica code for iASL and
> other tool: github.com/acpica/acpica.git
> 
> With that code, I can compile my IORT table with PMCG node.

Unfortunately it looks like I'm the first person from Qualcomm Datacenter
Technologies to try to add something to ACPICA, which means I'll have to
kick off an internal legal process which may take some time. Unless someone
else wants to take a crack at it - and really, there's nothing more than is
in the ARM IORT spec - it could be a while before I can do that.

Neil
-- 
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.