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=DKIM_INVALID,DKIM_SIGNED, 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 2B63CC432C0 for ; Thu, 21 Nov 2019 16:54:02 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 E3752206CB for ; Thu, 21 Nov 2019 16:54:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="nOqy6YqN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3752206CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id A51EA87F6F; Thu, 21 Nov 2019 16:54:01 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gQdNW10oAMMS; Thu, 21 Nov 2019 16:54:01 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 345B987F5F; Thu, 21 Nov 2019 16:54:01 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 130BBC1DD7; Thu, 21 Nov 2019 16:54:01 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 59CE5C18DA for ; Thu, 21 Nov 2019 16:53:59 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 4118487F6F for ; Thu, 21 Nov 2019 16:53:59 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hRRhfvERCG1D for ; Thu, 21 Nov 2019 16:53:58 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by whitealder.osuosl.org (Postfix) with ESMTPS id 2AA0387F5F for ; Thu, 21 Nov 2019 16:53:58 +0000 (UTC) Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 D73BF20658; Thu, 21 Nov 2019 16:53:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574355237; bh=U//DMVp98yPH8p7vkS8DG0VecnLBLi0eUqdzTWKCIus=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nOqy6YqNYkxCxubuh9LZRljCgNKNxAsSy1UZanVKcKNTQ0A+tl9OqDhWF1GMUi4VE qCPF4LWenOgvvV3Mv9FVQsp/jUSvU93wKcKVK4AdA5iMcZwWJuJ7nmsVzYvhYO3Wiz XIGuZedbQKcuRhdrbEVbqndrWgGFUa7vtiqpAiXE= Date: Thu, 21 Nov 2019 16:53:48 +0000 From: Will Deacon To: Christoph Hellwig Subject: Re: [PATCH v2] dma-mapping: treat dev->bus_dma_mask as a DMA limit Message-ID: <20191121165348.GC4905@willie-the-truck> References: <20191121092646.8449-1-nsaenzjulienne@suse.de> <20191121152457.GA525@lst.de> <20191121152650.GA651@lst.de> <70359d2a-10c6-09c7-a857-805085affb0a@arm.com> <20191121160217.GA1583@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191121160217.GA1583@lst.de> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Catalin Marinas , Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Paul Mackerras , Hanjun Guo , Frank Rowand , "H. Peter Anvin" , Paul Burton , Michael Ellerman , x86@kernel.org, linux-acpi@vger.kernel.org, Ingo Molnar , 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-mips@vger.kernel.org, Ralf Baechle , iommu@lists.linux-foundation.org, Sudeep Holla , Robin Murphy , Nicolas Saenz Julienne X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Nov 21, 2019 at 05:02:17PM +0100, Christoph Hellwig wrote: > On Thu, Nov 21, 2019 at 03:55:39PM +0000, Robin Murphy wrote: > > Hmm, there's no functional dependency though, is there? AFAICS it's > > essentially just a context conflict. Is it worth simply dropping (or > > postponing) the local renaming in __dma_direct_optimal_gfp_mask(), or > > perhaps even cross-merging arm64/for-next/zone-dma into dma/for-next? > > I would have no problem with pulling it in. I'd kinda hate creating > the conflict, though. So if the arm64 maintainers are fine with it > I'll pull it in, especially if I get an ACK from Robin. Please go ahead and pull in our for-next/zone-dma branch if you need it. We're not going to rebase it, and I suspect we won't even be queueing anything else there at this stage in the game. Cheers, Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu