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_MUTT autolearn=ham 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 2A0A8C48BD5 for ; Tue, 25 Jun 2019 06:33:02 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 060C720665 for ; Tue, 25 Jun 2019 06:33:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 060C720665 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id B133092F; Tue, 25 Jun 2019 06:33:01 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id DD5158E2 for ; Tue, 25 Jun 2019 06:33:00 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from newverein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 71C70710 for ; Tue, 25 Jun 2019 06:33:00 +0000 (UTC) Received: by newverein.lst.de (Postfix, from userid 2407) id B569268B02; Tue, 25 Jun 2019 08:32:28 +0200 (CEST) Date: Tue, 25 Jun 2019 08:32:28 +0200 From: Christoph Hellwig To: Geert Uytterhoeven Subject: Re: [RFC] switch m68k to use the generic remapping DMA allocator Message-ID: <20190625063228.GA29561@lst.de> References: <20190614102126.8402-1-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Linux Kernel Mailing List , linux-m68k , Christoph Hellwig , Linux IOMMU , Greg Ungerer X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org On Mon, Jun 17, 2019 at 08:53:55PM +0200, Geert Uytterhoeven wrote: > Hi Christoph, > > On Fri, Jun 14, 2019 at 12:21 PM Christoph Hellwig wrote: > > can you take a look at the (untested) patches below? They convert m68k > > to use the generic remapping DMA allocator, which is also used by > > arm64 and csky. > > Thanks. But what does this buy us? A common dma mapping code base with everyone, including supporting DMA allocations from atomic context, which the documentation and API assume are there, but which don't work on m68k. > bloat-o-meter says: > > add/remove: 75/0 grow/shrink: 11/6 up/down: 4122/-82 (4040) What do these values stand for? The code should grow a little as we now need to include the the pool allocator for the above API fix. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu