From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02F80C3DA59 for ; Sat, 20 Jul 2024 12:12:43 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D93606B0082; Sat, 20 Jul 2024 08:12:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D43BF6B0085; Sat, 20 Jul 2024 08:12:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C0AC16B0088; Sat, 20 Jul 2024 08:12:42 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id A33F06B0082 for ; Sat, 20 Jul 2024 08:12:42 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 0D0E31A0493 for ; Sat, 20 Jul 2024 12:12:42 +0000 (UTC) X-FDA: 82360019364.23.DDE39EF Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf21.hostedemail.com (Postfix) with ESMTP id 5F1671C000E for ; Sat, 20 Jul 2024 12:12:39 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Zrgu0SuB; spf=pass (imf21.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1721477538; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=OHkqeGywhF935yUXQJUCBl6TOe3yWRw3KFYJw7tqnaY=; b=vRJ4y8unpkP3ujrbgnSCmua/AkHxhbu1j/Af5DCvczZbku6KQn5iq1jIrNY8NgIJ9irfUP rzwrKOmpVaoRiTcvpp8fE1mD0HJQFKYtLy+banRv54HhXR7fNPjPCX8/YkoTsU3af2ZT4K uftW4g6GiudzwyFsFM0T7SIGkbZnQuI= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Zrgu0SuB; spf=pass (imf21.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1721477538; a=rsa-sha256; cv=none; b=gHBQF5DHEjP2s3Bh1+PD/XxUIlyI5ycs5nTNTiHtM5541dfepX25J4N1BOM2ESv0jMxSZY HFXRppSZK5j2LXHUURoW8M0gpeX+Y/e21b0q1Q3dhlAlODfmcWyuEfLxukvWSIXn1t+f4k 6mBj2LgHGTsz/WHedTCAXy/cu4hQKac= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 160BD60AC0; Sat, 20 Jul 2024 12:12:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09110C2BD10; Sat, 20 Jul 2024 12:12:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721477557; bh=fwbjiZOl2jVEvkjLoIR5P7+CK/Chy3OdwVeEOh6ZuS0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Zrgu0SuBbpILpJBm8U5PR8XGe87tRutuy1WzG7Fmsz4VozP42z8IfYuFPMEiCO6ez djid8auGU5SdaEK5v5L5Kcs3yzuWYeCcZtOzcSL3vqkCL7k8A8lfqmCMd/yVXhjtF8 VHhSwiU64gORZkNkAHRI6mECdB/Pr9e9NEqnu9OJaFfY/A4K+TFaCMAZSDIPmjuJXD m9fyDujPC45QYgAsPUjQDHQ+rAx5rEVo8xTvK67ZSw30TE3zGPomSDzPciI4/ZXvh5 fjlXjrfuFyfqzBaLPEL/6dkuLr5m5vWTRuYPQWlUZ6Y2t6qDf8GDx6tPL5wdYxPr4T RVe/6SLZl02bQ== Date: Sat, 20 Jul 2024 15:09:28 +0300 From: Mike Rapoport To: Zi Yan Cc: linux-kernel@vger.kernel.org, Alexander Gordeev , Andreas Larsson , Andrew Morton , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dan Williams , Dave Hansen , David Hildenbrand , "David S. Miller" , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Michael Ellerman , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Subject: Re: [PATCH 14/17] mm: introduce numa_emulation Message-ID: References: <20240716111346.3676969-1-rppt@kernel.org> <20240716111346.3676969-15-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 5F1671C000E X-Stat-Signature: oprgfzetgd6n1f885duwsa6urgrfupun X-HE-Tag: 1721477559-836079 X-HE-Meta: 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 VH6QRdrk yrDxK9cqWoG1TnPz/p0z4gnKCLdeI9/M2QTuWUZHJVD9sWGh0/SM7lyYX8y2Z5aj4r+0bk+bbLppNGjc/TXDTFplA47iAHE/gfmypsIGC5zahy+TTvXGxa61Vwwt4mEAONYjShSrMvej0/IHZNTB1kHTmpKmbxlG+qvhRmOo7iAvvH+sIITnKxOlXk/encWnypzbjH7uS6NYaFtEVojwu9WHhh+/uHsAJ1OaEwNCtJjWzXW3ulYZ/hSesg2IcM5H+wSGDWmkA6lGs043A/EEj9f8j7gjBnIXAK7RLssEpZsLJaeJ0u7A1oYJbJnhr3viGQM0wcxIgFAkawhc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Jul 19, 2024 at 12:03:11PM -0400, Zi Yan wrote: > On 16 Jul 2024, at 7:13, Mike Rapoport wrote: > > > From: "Mike Rapoport (Microsoft)" > > > > 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) > > --- > > arch/x86/Kconfig | 8 -------- > > arch/x86/include/asm/numa.h | 12 ------------ > > arch/x86/mm/Makefile | 1 - > > arch/x86/mm/numa_internal.h | 11 ----------- > > include/linux/numa_memblks.h | 17 +++++++++++++++++ > > mm/Kconfig | 8 ++++++++ > > mm/Makefile | 1 + > > mm/numa_emulation.c | 4 +--- > > 8 files changed, 27 insertions(+), 35 deletions(-) > > After this code move, the document of numa=fake= should be moved from > Documentation/arch/x86/x86_64/boot-options.rst to > Documentation/admin-guide/kernel-parameters.txt > too. I'll add this as a separate commit. > Something like: > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index bc55fb55cd26..ce3659289b5e 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -4158,6 +4158,18 @@ > Disable NUMA, Only set up a single NUMA node > spanning all memory. > > + numa=fake=[MG] > + If given as a memory unit, fills all system RAM with nodes of > + size interleaved over physical nodes. > + > + numa=fake= > + If given as an integer, fills all system RAM with N fake nodes > + interleaved over physical nodes. > + > + numa=fake=U > + If given as an integer followed by 'U', it will divide each > + physical node into N emulated nodes. > + > numa_balancing= [KNL,ARM64,PPC,RISCV,S390,X86] Enable or disable automatic > NUMA balancing. > Allowed values are enable and disable > diff --git a/Documentation/arch/x86/x86_64/boot-options.rst b/Documentation/arch/x86/x86_64/boot-options.rst > index 137432d34109..98d4805f0823 100644 > --- a/Documentation/arch/x86/x86_64/boot-options.rst > +++ b/Documentation/arch/x86/x86_64/boot-options.rst > @@ -170,18 +170,6 @@ NUMA > Don't parse the HMAT table for NUMA setup, or soft-reserved memory > partitioning. > > - numa=fake=[MG] > - If given as a memory unit, fills all system RAM with nodes of > - size interleaved over physical nodes. > - > - numa=fake= > - If given as an integer, fills all system RAM with N fake nodes > - interleaved over physical nodes. > - > - numa=fake=U > - If given as an integer followed by 'U', it will divide each > - physical node into N emulated nodes. > - > ACPI > ==== > > Best Regards, > Yan, Zi -- Sincerely yours, Mike.