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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 E5504C432C0 for ; Tue, 19 Nov 2019 17:00:15 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B6BC222362 for ; Tue, 19 Nov 2019 17:00:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="dC9lo0tQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6BC222362 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+GR25UbuYD4qtIkB6Sb5AH3cvXTjfaaUMntufrQrLYk=; b=dC9lo0tQSoBlMr akZ3uJom5R4ycSS8kvnAvdCTnZuavvXFlLA+6okrAX50ghCT0r0V0esiBH7CGoyuTGECn9x14uv6j Rn4XD7pYZbnpF8wcu8q1boV3bQvQCLUFnllLCng0uBKhc48Chuou5huOBBGKdvQa8Tzf6vAkjtFRx U567cpVk4cRsEqvzzz/1IRE7xb4pTjG4zpaN4lefqKxYrzoqhJDWqyl1vv1osFOpzGOOjLtYnk9WP Ci3p/eS58BVmuQ6t9qRdRyTgMRvj0jZarKxhvZEJpkZUdxXwsyyjoYvDDA9Je/lMA6Lqtx8RyAaib Ts6zaNoEDmbIZ2C43ebw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iX6rP-0003ty-25; Tue, 19 Nov 2019 17:00:15 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iX6rM-0003tO-QJ for linux-arm-kernel@lists.infradead.org; Tue, 19 Nov 2019 17:00:14 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 254F868C4E; Tue, 19 Nov 2019 18:00:07 +0100 (CET) Date: Tue, 19 Nov 2019 18:00:06 +0100 From: Christoph Hellwig To: Nicolas Saenz Julienne Subject: Re: [PATCH] dma-mapping: treat dev->bus_dma_mask as a DMA limit Message-ID: <20191119170006.GA19569@lst.de> References: <20191113161340.27228-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191119_090013_003998_315B05CC X-CRM114-Status: GOOD ( 13.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , linux-mips@vger.kernel.org, linux-ide@vger.kernel.org, Paul Mackerras , Hanjun Guo , Frank Rowand , Christoph Hellwig , Marek Szyprowski , Lorenzo Pieralisi , "H. Peter Anvin" , Paul Burton , Michael Ellerman , Joerg Roedel , x86@kernel.org, phil@raspberrypi.org, linux-acpi@vger.kernel.org, Ingo Molnar , linux-pci@vger.kernel.org, James Hogan , Len Brown , devicetree@vger.kernel.org, Rob Herring , Borislav Petkov , Andy Lutomirski , Bjorn Helgaas , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Jens Axboe , linuxppc-dev@lists.ozlabs.org, "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, Ralf Baechle , iommu@lists.linux-foundation.org, Sudeep Holla , Robin Murphy Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 19, 2019 at 01:57:43PM +0100, Nicolas Saenz Julienne wrote: > Hi Rob & Christoph, > do you mind if I append v2 of this into my upcoming v3 RPi4 PCIe support > series, I didn't do it initially as I thought this was going to be a > contentious patch. But as it turned out better than expected, I think it > should go into the PCIe series. In the end it's the first explicit user of the > bus DMA limit. > > Here's v2 in case you don't know what I'm talking about: > https://www.spinics.net/lists/arm-kernel/msg768459.html In principle I wouldn't mind, but I think this is going to conflict quite badly with other changes in the dma-mapping tree (including yours). So I think we'll need a shared tree or I'll need to pull in the whole series through the dma-mapping tree if there are not other conflicts and the other maintainers are fine with it. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel