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From: Gavin Shan <gshan@redhat.com>
To: Randy Dunlap <rdunlap@infradead.org>, devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, drjones@redhat.com,
	robh+dt@kernel.org, shan.gavin@gmail.com
Subject: Re: [PATCH v5] Documentation, dt, numa: Add note to empty NUMA node
Date: Wed, 30 Jun 2021 17:26:30 +1000	[thread overview]
Message-ID: <84bdacaa-ad54-9452-122a-0fb98c805953@redhat.com> (raw)
In-Reply-To: <89e25fd7-b323-2092-4151-faba060d4c10@infradead.org>

On 6/29/21 2:15 AM, Randy Dunlap wrote:
> On 6/28/21 2:34 AM, Gavin Shan wrote:
>> The empty memory nodes, where no memory resides in, are allowed.
>> For these empty memory nodes, the 'len' of 'reg' property is zero.
>> The NUMA node IDs are still valid and parsed, but memory may be
>> added to them through hotplug afterwards. I finds difficulty to
>> get where it's properly documented.
>>
>> So lets add a section for empty memory nodes in NUMA binding
>> document. Also, the 'unit-address', equivalent to 'base-address'
>> in the 'reg' property of these empty memory nodes is suggested to
>> be the summation of highest memory address plus the NUMA node ID.
>>
>> Signed-off-by: Gavin Shan <gshan@redhat.com>
>> ---
>> v5: Separate section for empty memory node
>> ---
>>   Documentation/devicetree/bindings/numa.txt | 61 +++++++++++++++++++++-
>>   1 file changed, 60 insertions(+), 1 deletion(-)
>>
> 
> LGTM. Thanks.
> 
> Acked-by: Randy Dunlap <rdunlap@infradead.org>
> 

Thanks, Randy. Rob, could you help to review? Thanks in advance.

Thanks,
Gavin


  reply	other threads:[~2021-06-30  7:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-28  9:34 Gavin Shan
2021-06-28 16:15 ` Randy Dunlap
2021-06-30  7:26   ` Gavin Shan [this message]
2021-07-01 17:25 ` Rob Herring
2021-07-02  0:02   ` Gavin Shan
2021-07-11  0:59     ` Gavin Shan
2021-07-12 19:44     ` Rob Herring
2021-07-15  4:54       ` Gavin Shan

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