From: Will Deacon <will@kernel.org>
To: Hoan Tran <Hoan@os.amperecomputing.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
patches@os.amperecomputing.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA
Date: Thu, 6 Feb 2020 10:23:40 +0000 [thread overview]
Message-ID: <20200206102340.GA17074@willie-the-truck> (raw)
In-Reply-To: <1580759714-4614-1-git-send-email-Hoan@os.amperecomputing.com>
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
Will
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next prev parent reply other threads:[~2020-02-06 10:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-03 19:55 [PATCH] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA Hoan Tran
2020-02-06 10:23 ` Will Deacon [this message]
2020-02-06 20:01 ` Hoan Tran
2020-02-25 23:20 ` Hoan Tran
2020-03-11 6:31 ` Hoan Tran
2020-03-11 11:27 ` Catalin Marinas
2020-03-28 18:36 ` Hoan Tran
-- strict thread matches above, loose matches on Subject: below --
2019-06-24 14:38 Hoan Tran OS
2019-06-25 10:12 ` Will Deacon
2019-06-25 14:55 ` Hoan Tran OS
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