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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 C6B78C3A59E for ; Mon, 2 Sep 2019 13:01:09 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 95A962168B for ; Mon, 2 Sep 2019 13:01:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95A962168B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 34ABF6B0007; Mon, 2 Sep 2019 09:01:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2FBF16B0008; Mon, 2 Sep 2019 09:01:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 212186B000A; Mon, 2 Sep 2019 09:01:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0193.hostedemail.com [216.40.44.193]) by kanga.kvack.org (Postfix) with ESMTP id E86476B0007 for ; Mon, 2 Sep 2019 09:01:08 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 6DBD67591 for ; Mon, 2 Sep 2019 13:01:08 +0000 (UTC) X-FDA: 75889991016.21.water57_26f82f2b2401d X-HE-Tag: water57_26f82f2b2401d X-Filterd-Recvd-Size: 2408 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by imf09.hostedemail.com (Postfix) with ESMTP for ; Mon, 2 Sep 2019 13:01:07 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 0E88568AFE; Mon, 2 Sep 2019 15:01:02 +0200 (CEST) Date: Mon, 2 Sep 2019 15:01:01 +0200 From: Christoph Hellwig To: Nicolas Saenz Julienne Cc: Catalin Marinas , Christoph Hellwig , linux-mm@kvack.org, linux-riscv@lists.infradead.org, will@kernel.org, m.szyprowski@samsung.com, linux-arch@vger.kernel.org, f.fainelli@gmail.com, frowand.list@gmail.com, devicetree@vger.kernel.org, Arnd Bergmann , marc.zyngier@arm.com, robh+dt@kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, phill@raspberryi.org, mbrugger@suse.com, eric@anholt.net, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, wahrenst@gmx.net, akpm@linux-foundation.org, Robin Murphy Subject: Re: [PATCH v2 01/11] asm-generic: add dma_zone_size Message-ID: <20190902130101.GA2051@lst.de> References: <20190820145821.27214-1-nsaenzjulienne@suse.de> <20190820145821.27214-2-nsaenzjulienne@suse.de> <20190826070939.GD11331@lst.de> <027272c27398b950f207101a2c5dbc07a30a36bc.camel@suse.de> <20190830144536.GJ36992@arrakis.emea.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) 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: On Fri, Aug 30, 2019 at 07:24:25PM +0200, Nicolas Saenz Julienne wrote: > I'll be happy to implement it that way. I agree it's a good compromise. > > @Christoph, do you still want the patch where I create 'zone_dma_bits'? With a > hardcoded ZONE_DMA it's not absolutely necessary. Though I remember you said it > was a first step towards being able to initialize dma-direct's min_mask in > meminit. I do like the variable better than the current #define. I wonder if really want a mask or a max_zone_dma_address like variable. So for this series feel free to drop the patch. I'll see if I'll pick it up later or if we can find some way to automatically propagate that information from the zone initialization.