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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 46A17CA9ECB for ; Thu, 31 Oct 2019 13:42:39 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 EA18E2086D for ; Thu, 31 Oct 2019 13:42:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="OewjRBc9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA18E2086D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 473mj82ZGvzF3T4 for ; Fri, 1 Nov 2019 00:42:36 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=batv+4fa4615b85c97fbb822c+5912+infradead.org+hch@bombadil.srs.infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="OewjRBc9"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 473mcl6GKqzF5YW for ; Fri, 1 Nov 2019 00:38:47 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=QkB42TZaY19p2tUWLkDIEWFmICndZjJCiuu8c7FQUq4=; b=OewjRBc9r9Xp8/PXv2ckSWK7N WX5KxNtEnxuD88ukmOO+8iDivb6it9c5njv2xdlRHDV3ilOSkq+TQL1eZ8py0NxbpFJIK4xgwK6ux 7D5//CzzfbuOt0waXy9tZOoZuyaFaj6keBpC0pEGDXq0l0ZpuzSYhyoXX9IBE403iJ2khy33zpTr9 sJDM3/z9b9fFXeAnO2iZzJx16eN0zkdRxNCAyRmFcOIfHAWM7iod8Jv07lYmHFMQ2Rm4qWOBeNu/q QKBxAgivmnYe77smiwpxolIuesXJq2NVe/USj+FRAOM5XgZaMqbOpfLsKJvOXgwLXdGuNFg0qOkS+ TMOLequjA==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1iQAel-0005dF-3D; Thu, 31 Oct 2019 13:38:31 +0000 Date: Thu, 31 Oct 2019 06:38:31 -0700 From: Christoph Hellwig To: Nicolas Saenz Julienne Subject: Re: [PATCH RFC 1/5] dma/direct: turn ARCH_ZONE_DMA_BITS into a variable Message-ID: <20191031133831.GA21509@infradead.org> References: <20191014183108.24804-1-nsaenzjulienne@suse.de> <20191014183108.24804-2-nsaenzjulienne@suse.de> <20191030214914.GA15939@infradead.org> <8c525f66c1c0d9f07e0cff4948d1ec3229756220.camel@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8c525f66c1c0d9f07e0cff4948d1ec3229756220.camel@suse.de> User-Agent: Mutt/1.12.1 (2019-06-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, mbrugger@suse.com, Vasily Gorbik , wahrenst@gmx.net, Catalin Marinas , linuxppc-dev@lists.ozlabs.org, Will Deacon , linux-kernel@vger.kernel.org, Heiko Carstens , Christoph Hellwig , Christian Borntraeger , iommu@lists.linux-foundation.org, f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Paul Mackerras , Robin Murphy , linux-arm-kernel@lists.infradead.org, Marek Szyprowski Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, Oct 31, 2019 at 11:30:36AM +0100, Nicolas Saenz Julienne wrote: > On Wed, 2019-10-30 at 14:49 -0700, Christoph Hellwig wrote: > > On Mon, Oct 14, 2019 at 08:31:03PM +0200, Nicolas Saenz Julienne wrote: > > > Some architectures, notably ARM, are interested in tweaking this > > > depending on their runtime DMA addressing limitations. > > > > > > Signed-off-by: Nicolas Saenz Julienne > > > > Do you want me to pick this up for the 5.5 dma-mapping tree, or do you > > want me to wait for the rest to settle? > > I'd say take it, this will be ultimately needed once we push forward with ARM. Can you resend a version that applies against 5.4-rc? The current one has conflicts in the arm64 code.