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 Received: from smtp1.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 smtp.lore.kernel.org (Postfix) with ESMTPS id 001C3C433F5 for ; Mon, 9 May 2022 15:49:55 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id A91E981C21; Mon, 9 May 2022 15:49:55 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rOt79jEKrhjh; Mon, 9 May 2022 15:49:54 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp1.osuosl.org (Postfix) with ESMTPS id 892E981A15; Mon, 9 May 2022 15:49:54 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 664F5C0032; Mon, 9 May 2022 15:49:54 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [IPv6:2605:bc80:3010::133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 73BBFC002D for ; Mon, 9 May 2022 15:49:53 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 5BFE640253 for ; Mon, 9 May 2022 15:49:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp2.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=armlinux.org.uk Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YigFTM7eSpHa for ; Mon, 9 May 2022 15:49:52 +0000 (UTC) X-Greylist: delayed 00:05:31 by SQLgrey-1.8.0 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by smtp2.osuosl.org (Postfix) with ESMTPS id CC55D40104 for ; Mon, 9 May 2022 15:49:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: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=K4Ghe47wyHzJC/f9L6n0o6zagAWPzwTkrtr6pV97IUk=; b=WzlKZ7fSN/dBH8RKYd6m3bkXdD mv2quNMAOlbc7iJjqcQ8baqyyMWKBY7SGPOtekFffiAu/2nom/2/VhHi6WR1TOrtcF2cyWwfR3T7h 2lFwN2xNQGxftqfKORZ4q5kFKqRc+ocL4CGJQn2wAbdHnJ56keASELf+ImYa6LzLvDn5OEmKZtbYU gS056gWixGDz+4cpZGEb6b5k0jTil/YgEIZKfmaMh8FsRtefyv8VqierKsOEZ9OspPyoDZyBbHqVQ vT3TLVn+TGbtwDV1mNqEgatoGHJHYUovpgac9W2DHkw0W6W78rmgXulI1bF6ph5lpq2gZ3s0KhMM1 oiqoA+8Q==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:60642) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1no5YO-0003Gf-Lj; Mon, 09 May 2022 16:44:09 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1no5YI-0005Dn-Jw; Mon, 09 May 2022 16:44:02 +0100 Date: Mon, 9 May 2022 16:44:02 +0100 From: "Russell King (Oracle)" To: Linus Walleij Subject: Re: fully convert arm to use dma-direct Message-ID: References: <20220421074204.1284072-1-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Cc: Andrew Lunn , Arnd Bergmann , Marc Zyngier , Gregory Clement , linux-usb@vger.kernel.org, Greg Kroah-Hartman , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Alan Stern , Andre Przywara , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth 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 Fri, Apr 22, 2022 at 11:17:20PM +0200, Linus Walleij wrote: > On Thu, Apr 21, 2022 at 9:42 AM Christoph Hellwig wrote: > > > arm is the last platform not using the dma-direct code for directly > > mapped DMA. With the dmaboune removal from Arnd we can easily switch > > arm to always use dma-direct now (it already does for LPAE configs > > and nommu). I'd love to merge this series through the dma-mapping tree > > as it gives us the opportunity for additional core dma-mapping > > improvements. > (...) > > > b/arch/arm/mach-footbridge/Kconfig | 1 > > b/arch/arm/mach-footbridge/common.c | 19 > > b/arch/arm/mach-footbridge/include/mach/dma-direct.h | 8 > > b/arch/arm/mach-footbridge/include/mach/memory.h | 4 > > I think Marc Z has a Netwinder that he can test this on. Marc? > I have one too, just not much in my office because of parental leave. Netwinder is just more of a PC-but-with-ARM - it doesn't make use of any of the dmabounce code. Assabet is what needs testing for that, or one of the SA1110 machines. I'm away from home on my boat (and have been for the last two and a bit weeks) so can't test. Sorry. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu