Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support

From	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support
Date	2015-09-30 08:20 +0200
Message-ID	<qeiU9-53l-1@gated-at.bofh.it> (permalink)
References	<qdoRX-6G6-3@gated-at.bofh.it> <qdEk2-3tU-13@gated-at.bofh.it> <qdK67-5Gg-27@gated-at.bofh.it> <qe7Fp-5O1-27@gated-at.bofh.it> <qe94u-7GE-13@gated-at.bofh.it>
Organization	IBM

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On 09/30/2015 01:16 AM, Denis Kirjanov wrote:
> On 9/29/15, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> wrote:
>> On 09/28/2015 10:34 PM, Nishanth Aravamudan wrote:
>>> On 28.09.2015 [13:44:42 +0300], Denis Kirjanov wrote:
>>>> On 9/27/15, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> wrote:
>>>>> Problem description:
>>>>> Powerpc has sparse node numbering, i.e. on a 4 node system nodes are
>>>>> numbered (possibly) as 0,1,16,17. At a lower level, we map the chipid
>>>>> got from device tree is naturally mapped (directly) to nid.
>>>>
>>>> Interesting thing to play with, I'll try to test it on my POWER7 box,
>>>> but it doesn't have the OPAL layer :(
>>
>> Hi Denis,
>> Thanks for your interest. I have pushed the patches to
>>
>> https://github.com/ktraghavendra/linux/tree/serialnuma_v1 if it makes
>>    patches easy to grab.
>
> Thanks!
> One sad thing is that I can't test the actual node id mapping now
> since currently I have an access to machine with only one memory node
> :/ Can we fake it through qemu?
>

faking the sparse numa ids is possible with Nish's patch for qemu:

https://lists.gnu.org/archive/html/qemu-devel/2014-06/msg05826.html

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Thread

[PATCH RFC  0/5] powerpc:numa Add serial nid support Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-27 20:30 +0200
  [PATCH RFC  5/5] powerpc:numa Use chipid to nid mapping to get serial numa node ids Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-27 20:30 +0200
  [PATCH RFC  4/5] powerpc:numa Add helper functions to maintain chipid to nid mapping Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-27 20:30 +0200
    Re: [PATCH RFC  4/5] powerpc:numa Add helper functions to maintain  chipid to nid mapping Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-09-28 19:40 +0200
      Re: [PATCH RFC  4/5] powerpc:numa Add helper functions to maintain  chipid to nid mapping Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-29 21:10 +0200
  Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support Denis Kirjanov <kda@linux-powerpc.org> - 2015-09-28 13:00 +0200
    Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-09-28 19:10 +0200
      Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-29 20:20 +0200
        Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support Denis Kirjanov <kda@linux-powerpc.org> - 2015-09-29 21:50 +0200
          Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-30 08:20 +0200
  Re: [PATCH RFC  0/5] powerpc:numa Add serial nid support Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-09-28 19:40 +0200
    Re: [PATCH RFC  0/5] powerpc:numa Add serial nid support Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> - 2015-09-29 21:20 +0200

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