Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp191544pxk; Wed, 16 Sep 2020 01:40:07 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw8zCI1/ps88B/BJDBERKXZXpOs1+hLWBVspiv1UXsiwU7418wzbyOfeYBzNybJEbMwWoGH X-Received: by 2002:a17:906:fccb:: with SMTP id qx11mr24864526ejb.429.1600245607217; Wed, 16 Sep 2020 01:40:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1600245607; cv=none; d=google.com; s=arc-20160816; b=her8QntN8XRSXNQTPVsXlU2HxHTSvnJTSx2sd+R8Tbmwb6oTRQQehCE4BUeS41PGVa cryw59xyl/9pqACrlP2FY/GKYOrnWH0mtLrFWaHkmrVyxR74aCFsTlJTqL8FW8qagcIu uDxOZ+UOYSefosJHkMlOVza1LVdqDnKlT9qttGHhtcQoKXc9C5RAYugRhzSlnHEVOXDb IHUeiUlqtH78SPOBtouGCvBAaaOYYxQqrwUAhhNoeGXESaRQW1b3yKHt/WochzRNRkwY CJ0yjZ5tv8hJdTqPcy8MuXEmQJVcx/uXJolZq7hjxpuptls30+i2isvnaKtxXJb/bZ86 gcKw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=mxxVoPAow/jDG54ecDzqGJb236Vv64phWowbqqoXZkk=; b=lH3B4OvfMRQinGJg8ehLI6NaFpj6U0zs7w/vt0NJ8i8bci6yP5z9w9XZ/JIkK78D7+ sexkYGAk0EtTRt+D6e0a+gJIadewGcp/RsC0bJi/h5+sGNo10gfBBHpq9F8ztXfFwaB+ lTPLsrEX+tqL7T5kOCer6ZeBwDCKmAc1obWketSRxu/KGQyv3OrcarzDpy1Ch4sE40EP V4vUPk5nBbel+pojoR1SKUnATJuEO5JuFA+y8m9dVhBf8KToJ9HjUWW513uRDj227jnv uoztPigA+w/6+h8UMeZ4dZlDJtzmj+WweMjRADcgPkYwEC8u+LnIlMaZFd3NtXEk97AS bqhg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=I28rbjWw; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id cy15si11759883edb.525.2020.09.16.01.39.44; Wed, 16 Sep 2020 01:40:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=I28rbjWw; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726590AbgIPIhK (ORCPT + 99 others); Wed, 16 Sep 2020 04:37:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726302AbgIPIhI (ORCPT ); Wed, 16 Sep 2020 04:37:08 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 752F9C06174A; Wed, 16 Sep 2020 01:37:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=mxxVoPAow/jDG54ecDzqGJb236Vv64phWowbqqoXZkk=; b=I28rbjWwEwIzJNZC1ubbx6Wr2Q K8TZVFXovRpbA3fV+NDfKBwnp4ZGMg54Q0ettaSvqJUt6iApkPM21Yq4AX4D1mZ1+snHKaCEK1Y6p qH888a+NPuj0VItwfLsStpg2iSWTerIXOQ17aaU/pslQxMRZ6+j+9LYJcYYECvU1/JI9oXyzl/Ukd BZfbeni4LMgkXtpw791xc1nyKGvpbqDdqykmUQkQualG6jxRtIpBjqkRzCiAVZX4L7/Abte44dL7d S4+taRlQeftuL05Q9QUfZkTaDzdK6YjtChiEC24bCS5FGvOxcOOlUYsxSaihnZqSiSASiUJRfo894 qgw3qlXg==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kISw3-0007Zp-2S; Wed, 16 Sep 2020 08:37:03 +0000 Date: Wed, 16 Sep 2020 09:37:03 +0100 From: Christoph Hellwig To: Phil Chang Cc: linux-arm-kernel@lists.infradead.org, Mark Rutland , Alix Wu , linux-doc@vger.kernel.org, Anshuman Khandual , Mauro Carvalho Chehab , Catalin Marinas , YJ Chiang , Jonathan Corbet , linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Will Deacon , Mike Rapoport Subject: Re: [PATCH] [PATCH] ARM64: Setup DMA32 zone size by bootargs Message-ID: <20200916083703.GA26411@infradead.org> References: <20200915150855.24825-1-phil.chang@mediatek.com> <20200916072206.27499-1-phil.chang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200916072206.27499-1-phil.chang@mediatek.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 16, 2020 at 03:22:06PM +0800, Phil Chang wrote: > this patch allowing the DMA32 zone be configurable in ARM64. Hell no. The point of the DMA32 zone is that it is exactly the first 4GiG, and not some random size someone decided without explaining why.