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40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
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From 462346142b26dd1fd8f55655959e38b385acb1c1 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ma=C3=ADra=20Canal?= <mcanal@igalia.com>
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Date: Fri, 17 May 2024 11:40:34 -0300
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Subject: [PATCH 1339/1350] arm64/numa: Add NUMA emulation for ARM64
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Allow selecting NUMA emulation on arm64.
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Signed-off-by: Maíra Canal <mcanal@igalia.com>
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Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
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Cc: Catalin Marinas <catalin.marinas@arm.com>
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Cc: Will Deacon <will@kernel.org>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cc: “Rafael J. Wysocki" <rafael@kernel.org>
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---
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arch/arm64/Kconfig | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/arch/arm64/Kconfig
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+++ b/arch/arm64/Kconfig
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@@ -1500,6 +1500,16 @@ config NODES_SHIFT
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Specify the maximum number of NUMA Nodes available on the target
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system. Increases memory reserved to accommodate various tables.
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+config NUMA_EMULATION
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+ bool "NUMA emulation"
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+ depends on NUMA
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+ select GENERIC_ARCH_NUMA_EMULATION
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+ help
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+ Enable NUMA emulation support. A flat machine will be split into
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+ virtual nodes when booted with "numa=fake=N", where N is the number
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+ of nodes, the system RAM will be split into N equal chunks, and
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+ assigned to each node.
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+
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source "kernel/Kconfig.hz"
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config ARCH_SPARSEMEM_ENABLE
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