Re: [PATCH v3 19/26] mm: introduce numa_emulation

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Subject: Re: [PATCH v3 19/26] mm: introduce numa_emulation
From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Date: Fri, 2 Aug 2024 12:19:59 +0100
Cc: <linux-kernel@xxxxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Andreas Larsson <andreas@xxxxxxxxxxx>, "Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, "Borislav Petkov" <bp@xxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Davidlohr Bueso <dave@xxxxxxxxxxxx>, "Greg Kroah-Hartman" <gregkh@xxxxxxxxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Huacai Chen <chenhuacai@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>, "John Paul Adrian Glaubitz" <glaubitz@xxxxxxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Rob Herring <robh@xxxxxxxxxx>, Samuel Holland <samuel.holland@xxxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "Vasily Gorbik" <gor@xxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Zi Yan <ziy@xxxxxxxxxx>, <devicetree@xxxxxxxxxxxxxxx>, <linux-acpi@xxxxxxxxxxxxxxx>, <linux-arch@xxxxxxxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, <linux-cxl@xxxxxxxxxxxxxxx>, <linux-doc@xxxxxxxxxxxxxxx>, <linux-mips@xxxxxxxxxxxxxxx>, <linux-mm@xxxxxxxxx>, <linux-riscv@xxxxxxxxxxxxxxxxxxx>, <linux-s390@xxxxxxxxxxxxxxx>, <linux-sh@xxxxxxxxxxxxxxx>, <linuxppc-dev@xxxxxxxxxxxxxxxx>, <loongarch@xxxxxxxxxxxxxxx>, <nvdimm@xxxxxxxxxxxxxxx>, <sparclinux@xxxxxxxxxxxxxxx>, <x86@xxxxxxxxxx>
In-reply-to: <20240801060826.559858-20-rppt@kernel.org>
Organization: Huawei Technologies Research and Development (UK) Ltd.

On Thu,  1 Aug 2024 09:08:19 +0300
Mike Rapoport <rppt@xxxxxxxxxx> wrote:

> From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
> 
> Move numa_emulation codfrom arch/x86 to mm/numa_emulation.c
> 
> This code will be later reused by arch_numa.
> 
> No functional changes.
> 
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
> Tested-by: Zi Yan <ziy@xxxxxxxxxx> # for x86_64 and arm64
I ran some basic tests on ARM with this. Seems to do the job.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Tested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

Works on both ACPI and dsdt boots.

References:
- [PATCH v3 00/26] mm: introduce numa_memblks
  - From: Mike Rapoport
- [PATCH v3 19/26] mm: introduce numa_emulation
  - From: Mike Rapoport

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