Messages in this thread | | | Subject | Re: [PATCH] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA | From | Hoan Tran <> | Date | Tue, 10 Mar 2020 23:31:38 -0700 |
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Hi Will and All,
Any chance you have time to take a look.
Thanks and regards Hoan
On 2/25/20 3:20 PM, Hoan Tran wrote: > Hi Will, > > Do you have any comments? > > Thanks > Hoan > > On 2/6/20 12:01 PM, Hoan Tran wrote: >> Hi Will, >> >> On 2/6/20 2:23 AM, Will Deacon wrote: >>> On Mon, Feb 03, 2020 at 11:55:14AM -0800, Hoan Tran wrote: >>>> Some NUMA nodes have memory ranges that span other nodes. >>>> Even though a pfn is valid and between a node's start and end pfns, >>>> it may not reside on that node. >>>> >>>> This patch enables NODES_SPAN_OTHER_NODES config for NUMA to support >>>> this type of NUMA layout. >>>> >>>> Signed-off-by: Hoan Tran <Hoan@os.amperecomputing.com> >>>> --- >>>> arch/arm64/Kconfig | 7 +++++++ >>>> 1 file changed, 7 insertions(+) >>>> >>>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig >>>> index e688dfa..939d28f 100644 >>>> --- a/arch/arm64/Kconfig >>>> +++ b/arch/arm64/Kconfig >>>> @@ -959,6 +959,13 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK >>>> config HOLES_IN_ZONE >>>> def_bool y >>>> +# Some NUMA nodes have memory ranges that span other nodes. >>>> +# Even though a pfn is valid and between a node's start and end pfns, >>>> +# it may not reside on that node. >>>> +config NODES_SPAN_OTHER_NODES >>>> + def_bool y >>>> + depends on ACPI_NUMA >>>> + >>> >>> I thought we agreed to do this in the core code? >>> >>> https://lore.kernel.org/lkml/1562887528-5896-1-git-send-email-Hoan@os.amperecomputing.com >>> >> >> Yes, but it looks like Thomas didn't agree to apply this patch into x86. >> >> https://lore.kernel.org/lkml/alpine.DEB.2.21.1907152042110.1767@nanos.tec.linutronix.de/ >> >> >> Regards >> Hoan >> >>> >>> Will >>>
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