linux-kernel - Re: [PATCH] ACPI: PPTT: Inform user that table offset used for Physical processor node ID

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Message-ID: <a861c0a5-2967-98a8-9666-428bef4891c9@huawei.com>
Date:   Thu, 2 Apr 2020 14:17:48 +0100
From:   John Garry <john.garry@...wei.com>
To:     Sudeep Holla <sudeep.holla@....com>
CC:     <rjw@...ysocki.net>, <lenb@...nel.org>,
        <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <jeremy.linton@....com>, <linuxarm@...wei.com>,
        <wanghuiqiang@...wei.com>
Subject: Re: [PATCH] ACPI: PPTT: Inform user that table offset used for
 Physical processor node ID

On 02/04/2020 14:08, Sudeep Holla wrote:
> (I see 2 copies of this patch, replying on the latest)

I sent 2x copies accidentally. WFH....

> 
> On Thu, Apr 02, 2020 at 08:22:25PM +0800, John Garry wrote:
>> If the the Processor ID valid is not set for a Physical Processor Package
>> node, then the node table offset is used as a substitute. As such, we
>> may get info like this from sysfs:
>>
>> root@(none)$ pwd
>> /sys/devices/system/cpu/cpu0/topology
>> root@(none)$ more physical_package_id
>> 56
>>
>> Inform the user of this in the bootlog, as it is much less than ideal, and
>> they can remedy this in their FW.
>>
>> This topic was originally discussed in:
>> https://lore.kernel.org/linux-acpi/c325cfe2-7dbf-e341-7f0f-081b6545e890@huawei.com/T/#m0ec18637d8586f832084a8a6af22580e6174669a
>>
> 
> Acked-by: Sudeep Holla <sudeep.holla@....com>

thanks

> 
> --
> Regards,
> Sudeep
> .
>