From patchwork Wed Aug 7 06:41:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13755895 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A821EC52D6F for ; Wed, 7 Aug 2024 06:57:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6yOguNti4cGWqHNEhq5PCYDaAiMMoG2FpwIElWuHUfI=; b=i6sIvGH6jETGyGZBPuGpzx3FIS hvuUGW8w8pEiSdF3GZm+4OFwHqWnSsJuopeE5mYawosXHlurrADC2T2vf3cA5FfKaPhGnxa6qTcIu qOXL3bqJ2glCBFz1wR5Diu7iqCitAyWzf7bQ5HI5cSDVUaSF01OhHI7EhDCC1pYlupaxl6Nfw55tn 8H9fW/d0ulRPD3L9tVpD2uQbXtyXQf2EhlHWqbYRGbR/e+Ypwpq0eOWQoASXqF5TJg8+N2Va79jZe 2Y5UcvfuES6Iy2dBndgsuCBnwc0ldM0HcWgrv6TuJ4jJuc3fshev9IN1vozaSn1dzmhf4XkKIGixO n7cWD8ew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbac2-000000048Ck-1lp6; Wed, 07 Aug 2024 06:57:34 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbaRX-000000043O6-2oEP; Wed, 07 Aug 2024 06:46:45 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D0F8B61159; Wed, 7 Aug 2024 06:46:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DF8AC32782; Wed, 7 Aug 2024 06:46:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723013202; bh=mSVpkyrRlmc8gB/6cofdu7bK0SP2SFlikATxtCiu+1M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IN10SVfP1ekyZrWQRi9UxJMep+tmuEWFmv5b8/EQkN2D/blJP8VDf2x14svnDTZPL o8kAnGxStd/1zLKk4F1PH0VzY4pDSS/4dQY7Vxur783cRbUwO618mIeFJMNOi+4j/v rZHa9+AOwuemUocpGbUEIASRGMQ4U2lEyMK8w9MoPuWsM9VMktGWNMVkWyanO8yAF7 lqxMob7NGVsEgyNaaDriMRMZIoJJHtaeYqcFkeOqMGnvq7l+Vxj8UOH/qXBNJhl7iT f/DtdjeDNGa5SC0m1U2ZtlRAbaUYx14tdgmGqQRe+Lwqm6aOgi1JKpbYbsIb2zB2Gb IYC7joAJCNuyA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Andreas Larsson , Andrew Morton , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dan Williams , Dave Hansen , David Hildenbrand , "David S. Miller" , Davidlohr Bueso , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Jonathan Corbet , Michael Ellerman , Mike Rapoport , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Samuel Holland , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , Zi Yan , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, nvdimm@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org, Jonathan Cameron Subject: [PATCH v4 26/26] docs: move numa=fake description to kernel-parameters.txt Date: Wed, 7 Aug 2024 09:41:10 +0300 Message-ID: <20240807064110.1003856-27-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240807064110.1003856-1-rppt@kernel.org> References: <20240807064110.1003856-1-rppt@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240806_234643_933359_3EDE1DCD X-CRM114-Status: GOOD ( 11.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Mike Rapoport (Microsoft)" NUMA emulation can be now enabled on arm64 and riscv in addition to x86. Move description of numa=fake parameters from x86 documentation of admin-guide/kernel-parameters.txt Suggested-by: Zi Yan Signed-off-by: Mike Rapoport (Microsoft) Reviewed-by: Jonathan Cameron Tested-by: Jonathan Cameron [arm64 + CXL via QEMU] Acked-by: Dan Williams Acked-by: David Hildenbrand --- Documentation/admin-guide/kernel-parameters.txt | 15 +++++++++++++++ Documentation/arch/x86/x86_64/boot-options.rst | 12 ------------ 2 files changed, 15 insertions(+), 12 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f1384c7b59c9..bcdee8984e1f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4123,6 +4123,21 @@ Disable NUMA, Only set up a single NUMA node spanning all memory. + numa=fake=[MG] + [KNL, ARM64, RISCV, X86, EARLY] + If given as a memory unit, fills all system RAM with + nodes of size interleaved over physical nodes. + + numa=fake= + [KNL, ARM64, RISCV, X86, EARLY] + If given as an integer, fills all system RAM with N + fake nodes interleaved over physical nodes. + + numa=fake=U + [KNL, ARM64, RISCV, X86, EARLY] + 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 ====