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openwrt/target/linux/bcm27xx/patches-6.6/950-1339-arm64-numa-Add-NUMA-emulation-for-ARM64.patch
Álvaro Fernández Rojas 538a1d740c bcm27xx: update to latest RPi patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.58..rpi-6.6.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-10-31 13:44:23 +01:00

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