From: Mike Rapoport <rppt@kernel.org>
To: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
akpm@linux-foundation.org, gregkh@linuxfoundation.org,
rafael@kernel.org, pierre.gondois@arm.com, mingo@redhat.com,
dave.hansen@linux.intel.com, luto@kernel.org,
teng.ma@linux.alibaba.com
Subject: Re: [PATCH v1 0/2] support NUMA emulation for genertic arch
Date: Wed, 21 Feb 2024 08:12:14 +0200 [thread overview]
Message-ID: <ZdWUPlqsxC_y3YFM@kernel.org> (raw)
In-Reply-To: <20240220113602.6943-1-rongwei.wang@linux.alibaba.com>
On Tue, Feb 20, 2024 at 07:36:00PM +0800, Rongwei Wang wrote:
> A brief introduction
> ====================
>
> The NUMA emulation can fake more node base on a single
> node system, e.g.
...
> Lastly, it seems not a good choice to realize x86 and other genertic
> archs separately. But it can indeed avoid some architecture related
> APIs adjustments and alleviate future maintenance.
Why is it a good choice? Copying 1k lines from x86 to a new place and
having to maintain two copies does not sound like a good choice to me.
> The previous RFC link see [1].
>
> Any advice are welcome, Thanks!
>
> Change log
> ==========
>
> RFC v1 -> v1
> * add new CONFIG_NUMA_FAKE for genertic archs.
> * keep x86 implementation, realize numa emulation in driver/base/ for
> genertic arch, e.g, arm64.
>
> [1] RFC v1: https://patchwork.kernel.org/project/linux-arm-kernel/cover/20231012024842.99703-1-rongwei.wang@linux.alibaba.com/
>
> Rongwei Wang (2):
> arch_numa: remove __init for early_cpu_to_node
> numa: introduce numa emulation for genertic arch
>
> drivers/base/Kconfig | 9 +
> drivers/base/Makefile | 1 +
> drivers/base/arch_numa.c | 32 +-
> drivers/base/numa_emulation.c | 909 ++++++++++++++++++++++++++++++++++
> drivers/base/numa_emulation.h | 41 ++
> include/asm-generic/numa.h | 2 +-
> 6 files changed, 992 insertions(+), 2 deletions(-)
> create mode 100644 drivers/base/numa_emulation.c
> create mode 100644 drivers/base/numa_emulation.h
>
> --
> 2.32.0.3.gf3a3e56d6
>
>
--
Sincerely yours,
Mike.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-02-21 6:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 2:48 [PATCH RFC 0/5] support NUMA emulation for arm64 Rongwei Wang
2023-10-12 2:48 ` [PATCH RFC 1/5] mm/numa: move numa emulation APIs into generic files Rongwei Wang
2023-10-12 6:05 ` Ingo Molnar
2023-10-12 2:48 ` [PATCH RFC 2/5] mm: percpu: fix variable type of cpu Rongwei Wang
2023-10-12 2:48 ` [PATCH RFC 3/5] arch_numa: remove __init in early_cpu_to_node() Rongwei Wang
2023-10-12 2:48 ` [PATCH RFC 4/5] mm/numa: support CONFIG_NUMA_EMU for arm64 Rongwei Wang
2023-10-12 2:48 ` [PATCH RFC 5/5] mm/numa: migrate leftover numa emulation into mm/numa.c Rongwei Wang
2023-10-12 12:37 ` [PATCH RFC 0/5] support NUMA emulation for arm64 Pierre Gondois
2023-10-12 13:30 ` Rongwei Wang
2023-10-23 13:03 ` Pierre Gondois
2024-02-20 11:36 ` [PATCH v1 0/2] support NUMA emulation for genertic arch Rongwei Wang
2024-02-20 11:36 ` [PATCH v1 1/2] arch_numa: remove __init for early_cpu_to_node Rongwei Wang
2024-02-20 11:36 ` [PATCH v1 2/2] numa: introduce numa emulation for genertic arch Rongwei Wang
2024-02-21 6:12 ` Mike Rapoport [this message]
2024-02-21 15:51 ` [PATCH v1 0/2] support NUMA " Pierre Gondois
2024-02-29 3:26 ` Rongwei Wang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZdWUPlqsxC_y3YFM@kernel.org \
--to=rppt@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=dave.hansen@linux.intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=pierre.gondois@arm.com \
--cc=rafael@kernel.org \
--cc=rongwei.wang@linux.alibaba.com \
--cc=teng.ma@linux.alibaba.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).