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,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 E742BC432C3 for ; Tue, 19 Nov 2019 17:00:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C031322365 for ; Tue, 19 Nov 2019 17:00:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728580AbfKSRAP (ORCPT ); Tue, 19 Nov 2019 12:00:15 -0500 Received: from verein.lst.de ([213.95.11.211]:35389 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727968AbfKSRAP (ORCPT ); Tue, 19 Nov 2019 12:00:15 -0500 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 Cc: Dave Hansen , Andy Lutomirski , Peter Zijlstra , Bjorn Helgaas , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Jens Axboe , Joerg Roedel , Rob Herring , Frank Rowand , Christoph Hellwig , Marek Szyprowski , Robin Murphy , Benjamin Herrenschmidt , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Paul Mackerras , "H. Peter Anvin" , Paul Burton , Michael Ellerman , x86@kernel.org, phil@raspberrypi.org, linux-acpi@vger.kernel.org, Ingo Molnar , James Hogan , Len Brown , devicetree@vger.kernel.org, Borislav Petkov , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, "Rafael J. Wysocki" , linux-mips@vger.kernel.org, Ralf Baechle , iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org 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-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.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.