Re: [PATCH v6 3/4] arm64/arm, numa, dt: adding numa dt binding implementation for arm64 platforms

[Ganapatrao Kulkarni <gpkulkarni-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Mon, Oct 26, 2015 at 7:14 AM, Ming Lei <ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> wrote:
> On Tue, Oct 20, 2015 at 6:45 PM, Ganapatrao Kulkarni
> <gkulkarni-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org> wrote:
>> Adding numa dt binding support for arm64 based platforms.
>> dt node parsing for numa topology is done using device property
>> proximity and device node distance-map.
>>
>> Reviewed-by: Robert Richter <rrichter-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
>> Signed-off-by: Ganapatrao Kulkarni <gkulkarni-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
>> ---
>>  arch/arm64/Kconfig            |  10 ++
>>  arch/arm64/include/asm/numa.h |  10 ++
>>  arch/arm64/kernel/Makefile    |   1 +
>>  arch/arm64/kernel/of_numa.c   | 221 ++++++++++++++++++++++++++++++++++++++++++
>>  arch/arm64/kernel/smp.c       |   1 +
>>  arch/arm64/mm/numa.c          |  10 +-
>>  6 files changed, 252 insertions(+), 1 deletion(-)
>>  create mode 100644 arch/arm64/kernel/of_numa.c
>>
>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
>> index 0f9cdc7..6cf8d20 100644
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -426,6 +426,16 @@ config NUMA
>>           local memory controller of the CPU and add some more
>>           NUMA awareness to the kernel.
>>
>> +config OF_NUMA
>> +       bool "Device Tree NUMA support"
>> +       depends on NUMA
>> +       depends on OF
>> +       default y
>> +       help
>> +         Enable Device Tree NUMA support.
>> +         This enables the numa mapping of cpu, memory, io and
>> +         inter node distances using dt bindings.
>
> Enabling the above config option can cause numa_init() warning in
> numa-less arm64 system, please see the following report:
this is taken care. which version are you using?

>
>           https://bugs.launchpad.net/bugs/1509221
>
> Thanks,

Thanks
Ganapat
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