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 X-Spam-Level: X-Spam-Status: No, score=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4384C56202 for ; Thu, 26 Nov 2020 15:32:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 564DA21D46 for ; Thu, 26 Nov 2020 15:32:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391393AbgKZPbt (ORCPT ); Thu, 26 Nov 2020 10:31:49 -0500 Received: from mail.kernel.org ([198.145.29.99]:49082 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391261AbgKZPbs (ORCPT ); Thu, 26 Nov 2020 10:31:48 -0500 Received: from gaia (unknown [95.146.230.165]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 67E652087C; Thu, 26 Nov 2020 15:31:47 +0000 (UTC) Date: Thu, 26 Nov 2020 15:31:44 +0000 From: Catalin Marinas To: Janghyuck Kim Cc: hyesoo.yu@samsung.com, pullip.cho@samsung.com, Will Deacon , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: arm64: Kconfig: support for nodes spanning other nodes Message-ID: <20201126153144.GB6722@gaia> References: <20201029061950.4217-1-janghyuck.kim@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201029061950.4217-1-janghyuck.kim@samsung.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 29, 2020 at 03:19:50PM +0900, Janghyuck Kim wrote: > To support NUMA systems whose physical address layout is not continuous > on one node, nodes spanning other nodes feature is required. > > Signed-off-by: Janghyuck Kim > --- > arch/arm64/Kconfig | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 49b8d017cba6..18ff7ce9dd60 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -1004,6 +1004,14 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK > config HOLES_IN_ZONE > def_bool y > > +# Some NUMA nodes have memory ranges that span > +# other nodes. Even though a pfn is valid and > +# between a node's start and end pfns, it may not > +# reside on that node. See memmap_init_zone() > +# for details. > +config NODES_SPAN_OTHER_NODES > + depends on NUMA I guess this patch no longer makes sense after commit acd3f5c441e9 ("mm: remove early_pfn_in_nid() and CONFIG_NODES_SPAN_OTHER_NODES"). -- Catalin