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=-5.3 required=3.0 tests=BAYES_00,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 B1981C11F67 for ; Mon, 12 Jul 2021 13:57:02 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 55B4A610A7 for ; Mon, 12 Jul 2021 13:57:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 55B4A610A7 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 smtp2.osuosl.org (Postfix) with ESMTP id 21E2140178; Mon, 12 Jul 2021 13:57:02 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org 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 N4z9DloznlJz; Mon, 12 Jul 2021 13:57:01 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTPS id D2498400BD; Mon, 12 Jul 2021 13:57:00 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B9397C001A; Mon, 12 Jul 2021 13:57:00 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 92FEFC000E for ; Mon, 12 Jul 2021 13:56:59 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 72EFE831F1 for ; Mon, 12 Jul 2021 13:56:59 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp1.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=kernel.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 MGCJdV_xKpVB for ; Mon, 12 Jul 2021 13:56:57 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp1.osuosl.org (Postfix) with ESMTPS id 75DE3831C1 for ; Mon, 12 Jul 2021 13:56:57 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 0A31561003; Mon, 12 Jul 2021 13:56:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626098216; bh=KqwO5Vj/j6Fq4TmXSaTqESu5yHRQzrkv3vVFfvNbMGY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=apLKxQ3ase69s99n1r/hg6FOeb+BIYvcXeks3TH0kXFsiV4vt4JUCfZRcjNqqJoI+ C/PtbYfC7V6I9+tFs23xYS40pB1IE1Ru0GO/sR7kIL+zLBxUujKnwvKpXUPJuSJZEH W/rAB9EgGt57/FadwbxksE14xUlBKeyWZI/Wnb4Nnt0t5RD8RNJlUOkSuzegkOaEqs Qc6OK9PK6WVdefs+A+PDuKLzETeUU+bVabgaTyboguU6s7wHGEC28+izJWHslIy77f yr0fKTdfH84fcYgWwvMeJ8lGvcnMqQz4hxapleBU2sKhQTn0GZErsyzP3AbO0nm6/5 eLx4kI3jlwL/w== Date: Mon, 12 Jul 2021 14:56:45 +0100 From: Will Deacon To: Konrad Rzeszutek Wilk Subject: Re: [PATCH v15 06/12] swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing Message-ID: <20210712135645.GA28881@willie-the-truck> References: <0f7bd903-e309-94a0-21d7-f0e8e9546018@arm.com> <20210705190352.GA19461@willie-the-truck> <20210706044848.GA13640@lst.de> <20210706132422.GA20327@willie-the-truck> <20210706140513.GA26498@lst.de> <20210706165720.GC20750@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Jim Quinlan , heikki.krogerus@linux.intel.com, linux-devicetree , peterz@infradead.org, benh@kernel.crashing.org, joonas.lahtinen@linux.intel.com, dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, grant.likely@arm.com, paulus@samba.org, Frank Rowand , mingo@kernel.org, Jianxiong Gao , Stefano Stabellini , Saravana Kannan , mpe@ellerman.id.au, "Rafael J . Wysocki" , xypron.glpk@gmx.de, Christoph Hellwig , Bartosz Golaszewski , bskeggs@redhat.com, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, Thierry Reding , matthew.auld@intel.com, Nicolas Boichat , thomas.hellstrom@linux.intel.com, jgross@suse.com, intel-gfx@lists.freedesktop.org, maarten.lankhorst@linux.intel.com, jani.nikula@linux.intel.com, Nathan Chancellor , Rob Herring , rodrigo.vivi@intel.com, Bjorn Helgaas , Claire Chang , Dan Williams , Andy Shevchenko , boris.ostrovsky@oracle.com, airlied@linux.ie, linuxppc-dev@lists.ozlabs.org, Randy Dunlap , Qian Cai , lkml , "list@263.net:IOMMU DRIVERS" , Daniel Vetter , Greg KH , Tom Lendacky , Robin Murphy , bauerman@linux.ibm.com 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 Tue, Jul 06, 2021 at 12:59:57PM -0400, Konrad Rzeszutek Wilk wrote: > On Tue, Jul 06, 2021 at 05:57:21PM +0100, Will Deacon wrote: > > On Tue, Jul 06, 2021 at 10:46:07AM -0400, Konrad Rzeszutek Wilk wrote: > > > On Tue, Jul 06, 2021 at 04:05:13PM +0200, Christoph Hellwig wrote: > > > > On Tue, Jul 06, 2021 at 03:01:04PM +0100, Robin Murphy wrote: > > > > > FWIW I was pondering the question of whether to do something along those > > > > > lines or just scrap the default assignment entirely, so since I hadn't got > > > > > round to saying that I've gone ahead and hacked up the alternative > > > > > (similarly untested) for comparison :) > > > > > > > > > > TBH I'm still not sure which one I prefer... > > > > > > > > Claire did implement something like your suggestion originally, but > > > > I don't really like it as it doesn't scale for adding multiple global > > > > pools, e.g. for the 64-bit addressable one for the various encrypted > > > > secure guest schemes. > > > > > > Couple of things: > > > - I am not pushing to Linus the Claire's patchset until we have a > > > resolution on this. I hope you all agree that is a sensible way > > > forward as much as I hate doing that. > > > > Sure, it's a pity but we could clearly use a bit more time to get these > > just right and we've run out of time for 5.14. > > > > I think the main question I have is how would you like to see patches for > > 5.15? i.e. as patches on top of devel/for-linus-5.14 or something else? > > Yes that would be perfect. If there are any dependencies on the rc1, I > can rebase it on top of that. Yes, please, rebasing would be very helpful. The broader rework of 'io_tlb_default_mem' is going to conflict quite badly otherwise. Cheers, Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu