From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 01E4B1E2898; Fri, 2 Aug 2024 15:07:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722611281; cv=none; b=O+b/lJgGjLN42u1j04EgVTRsZ0G31d6WVivu66yrVDpEoW6SxMkZ2ESTUyTjGXn2ciTpqbFlQQJUMRXINWDUcEuZvN0D9peGPoLfgwmoK415CNjibJY+gMS/7ZdILagyQzDnnpb+z7UPzLfZD8vqYQEsBd0xrAA4PXms5g9NAQI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722611281; c=relaxed/simple; bh=dE2tw65wybbwVSofl+zPz2Gn5VirG4tlVL3m+9Ybn1I=; h=Date:From:To:CC:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jOv49mfUkXohkt0/AAKvl+glIdaDt8sqOE0iss/veqj51wU9918JU0lMTxbP9ySGzNiU+SZTWXlSQ0uuRwCXyptWnBNXge7+ItrqbhY3nfJECiKDj6W6l5cJDaY0ectREStA94pmw+xzFqXftSlPnD22VlnM0lf8f+2ld1AOKRA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=Huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=Huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Wb8JQ56Vvz6K6RP; Fri, 2 Aug 2024 23:04:54 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id 959BE140A08; Fri, 2 Aug 2024 23:07:33 +0800 (CST) Received: from localhost (10.203.177.66) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 2 Aug 2024 16:07:32 +0100 Date: Fri, 2 Aug 2024 16:07:31 +0100 From: Jonathan Cameron To: Mike Rapoport 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 Corbet , Michael Ellerman , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Samuel Holland , Thomas Bogendoerfer , Thomas Gleixner , "Vasily Gorbik" , Will Deacon , Zi Yan , , , , , , , , , , , , , , , , Subject: Re: [PATCH v3 24/26] arch_numa: switch over to numa_memblks Message-ID: <20240802160731.00005f79@Huawei.com> In-Reply-To: <20240801060826.559858-25-rppt@kernel.org> References: <20240801060826.559858-1-rppt@kernel.org> <20240801060826.559858-25-rppt@kernel.org> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: lhrpeml500001.china.huawei.com (7.191.163.213) To lhrpeml500005.china.huawei.com (7.191.163.240) On Thu, 1 Aug 2024 09:08:24 +0300 Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > Until now arch_numa was directly translating firmware NUMA information > to memblock. > > Using numa_memblks as an intermediate step has a few advantages: > * alignment with more battle tested x86 implementation > * availability of NUMA emulation > * maintaining node information for not yet populated memory > > Replace current functionality related to numa_add_memblk() and > __node_distance() with the implementation based on numa_memblks and add > functions required by numa_emulation. > > Signed-off-by: Mike Rapoport (Microsoft) > Tested-by: Zi Yan # for x86_64 and arm64 Reviewed-by: Jonathan Cameron