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Date:   Wed, 16 Mar 2022 15:42:55 +0100
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Subject: Re: [PATCH v3] topology: make core_mask include at least
 cluster_siblings
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To:     Darren Hart <darren@os.amperecomputing.com>
Cc:     Vincent Guittot <vincent.guittot@linaro.org>,
        Will Deacon <will@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux Arm <linux-arm-kernel@lists.infradead.org>,
        Sudeep Holla <sudeep.holla@arm.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Catalin Marinas <Catalin.Marinas@arm.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Barry Song <song.bao.hua@hisilicon.com>,
        Valentin Schneider <Valentin.Schneider@arm.com>,
        "D . Scott Phillips" <scott@os.amperecomputing.com>,
        Ilkka Koskinen <ilkka@os.amperecomputing.com>,
        stable@vger.kernel.org
References: <f1deaeabfd31fdf512ff6502f38186ef842c2b1f.1646413117.git.darren@os.amperecomputing.com>
 <20220308103012.GA31267@willie-the-truck>
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 <35344252-5284-b08e-fec7-6dc99476b4b0@arm.com> <Yi9zuL8RZyYu1dVL@fedora>
From:   Dietmar Eggemann <dietmar.eggemann@arm.com>
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On 14/03/2022 17:56, Darren Hart wrote:
> On Mon, Mar 14, 2022 at 10:37:21AM +0100, Dietmar Eggemann wrote:
>> On 09/03/2022 19:26, Darren Hart wrote:
>>> On Wed, Mar 09, 2022 at 01:50:07PM +0100, Dietmar Eggemann wrote:
>>>> On 08/03/2022 18:49, Darren Hart wrote:
>>>>> On Tue, Mar 08, 2022 at 05:03:07PM +0100, Dietmar Eggemann wrote:
>>>>>> On 08/03/2022 12:04, Vincent Guittot wrote:
>>>>>>> On Tue, 8 Mar 2022 at 11:30, Will Deacon <will@kernel.org> wrote:

[...]

>>> Thank you, I'm following internally and will get with you.
>>
>> Looks like in my PPTT, the `Processor Hierarchy Nodes` which represents
>> cluster nodes have no valid `ACPI Processor ID`.
> 
> Thanks, I'm looking for the right person to get us the latest information
> available this. Will follow up once I have.

We're installing the new FW on our machine right now. Should see the CLS
SD level w/o hacking find_acpi_cpu_topology_cluster() then ;-)