From: John Garry <john.garry@huawei•com>
To: Sasha Levin <sashal@kernel•org>
Cc: wanghuiqiang@huawei•com, gregkh@linuxfoundation•org,
catalin.marinas@arm•com, guohanjun@huawei•com, rjw@rjwysocki•net,
linux-kernel@vger•kernel.org, stable@vger•kernel.org,
linuxarm@huawei•com, linux-acpi@vger•kernel.org,
rrichter@marvell•com, jeremy.linton@arm•com,
sudeep.holla@arm•com, will@kernel•org,
linux-arm-kernel@lists•infradead.org, lenb@kernel•org
Subject: Re: [PATCH for-stable-5.3 1/2] ACPI/PPTT: Add support for ACPI 6.3 thread flag
Date: Tue, 15 Oct 2019 09:16:13 +0100 [thread overview]
Message-ID: <635a839b-bc1e-37ab-bd47-a554acc9b282@huawei.com> (raw)
In-Reply-To: <20191014232958.GC31224@sasha-vm>
On 15/10/2019 00:29, Sasha Levin wrote:
> On Mon, Oct 14, 2019 at 07:56:01PM +0800, John Garry wrote:
>> From: Jeremy Linton <jeremy.linton@arm•com>
>>
>> Commit bbd1b70639f785a970d998f35155c713f975e3ac upstream.
>>
>> ACPI 6.3 adds a flag to the CPU node to indicate whether
>> the given PE is a thread. Add a function to return that
>> information for a given linux logical CPU.
>>
>> Signed-off-by: Jeremy Linton <jeremy.linton@arm•com>
>> Reviewed-by: Sudeep Holla <sudeep.holla@arm•com>
>> Reviewed-by: Robert Richter <rrichter@marvell•com>
>> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel•com>
>> Signed-off-by: Will Deacon <will@kernel•org>
>> Signed-off-by: John Garry <john.garry@huawei•com>
>
> How far back should these patches be backported?
>
Hi Sasha,
This patchset is for 5.3, and I sent a separate patchset for 4.19, since
the backport is a little different and required some hand modification -
https://lore.kernel.org/linux-arm-kernel/1571046986-231263-1-git-send-email-john.garry@huawei.com/.
4.19 is as far back as we want.
Please note that the patches in this 5.3 series are relevant for 5.2
also, but since 5.2 is EOL, I didn't mention it. We did test 5.2, so you
can add there also.
Please let me know if any more questions.
All the best,
John
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next prev parent reply other threads:[~2019-10-15 8:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-14 11:56 [PATCH for-stable-5.3 0/3] ACPI, arm64: Backport for ACPI PPTT 6.3 thread flag John Garry
2019-10-14 11:56 ` [PATCH for-stable-5.3 1/2] ACPI/PPTT: Add support for ACPI " John Garry
2019-10-14 23:29 ` Sasha Levin
2019-10-15 8:16 ` John Garry [this message]
2019-10-15 22:04 ` Sasha Levin
2019-10-14 11:56 ` [PATCH for-stable-5.3 2/2] arm64: topology: Use PPTT to determine if PE is a thread John Garry
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