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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 74B9FCAC5A5 for ; Sun, 21 Sep 2025 00:47:36 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9BDB68E0002; Sat, 20 Sep 2025 20:47:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 947598E0001; Sat, 20 Sep 2025 20:47:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 80F108E0002; Sat, 20 Sep 2025 20:47:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 6BB438E0001 for ; Sat, 20 Sep 2025 20:47:35 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id C9CF1B74CE for ; Sun, 21 Sep 2025 00:47:34 +0000 (UTC) X-FDA: 83911419228.17.3ABC5EC Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf17.hostedemail.com (Postfix) with ESMTP id 40D2B4000C for ; Sun, 21 Sep 2025 00:47:33 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=fLUxwzDv; spf=pass (imf17.hostedemail.com: domain of kbusch@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=kbusch@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1758415653; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=xtIvv4lw44pUlJuaLKbzEHjJi6xJvnBBYTGn1zOuzT8=; b=dqsHtdTUVzOit411wAKRTRKmNqgHTytb7EGQTfYZ+B73/KzHrsduVEk6qETLgYEhtK27Eb N6TIp8YkqlKxFMFdZLqn2C82xNfRhOV0GVfQqHAZ/QAtHqgsfIJQm+r2GmEGtw2s/LWgQi AnHZmDYEgGX5BbxF7WBUvmybsEl9KuI= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1758415653; a=rsa-sha256; cv=none; b=b/J4avrSHxxqgAzEfiu9vQWOK/ZpCIeIOPCcdQA3XtFbkXjj73BxIcGaMJed6NHGu3w8Q5 yHkjBHQrTnOZ8G0vHzRfaBEDJVV4+/YJni9SVuEQfqm4oMhjn+CMRSXs8aFZ/ViApjwUNs Rrwf/HD7Vo9gDUBq+JKqEtryHYS0Vs4= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=fLUxwzDv; spf=pass (imf17.hostedemail.com: domain of kbusch@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=kbusch@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 70099600AC; Sun, 21 Sep 2025 00:47:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F266C4CEEB; Sun, 21 Sep 2025 00:47:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758415652; bh=aFgKZNQUQCaJ2vrroedLHD+DNPOlwj6GGUlnWjzhG5w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fLUxwzDvBQpVLTwxkVcEMGkM0isY6OG/nLB20SsNVXIRKxxZrAbNIPP/lH+JLvuUn Kib9NA0Qx8ucaR4Lud4LpP66fHzAfy4YMg/WGXGCNSBD/snmzPLJ/GJr5uZM4GRPA4 FmPuCrywKU63yNMwT+i1LUerAAz4LYMUpnupPis0tcH13QBvBt9TCQlrhzdIw9AGje 8PZjHxaN7jKNeL5CBfGmMNjS4nLwafvguDKC8M88c1TuvUDa7uTmWsQUU6EjD9ZRCh q7PhsUzYYnzKkPRC+D+A2gtlVl3c6gXMUqXDS+5w81SLBHHJjwyUZmv9q7TG8Bge2K OMtCSqZskSdHw== Date: Sat, 20 Sep 2025 18:47:27 -0600 From: Keith Busch To: Leon Romanovsky Cc: Marek Szyprowski , Jason Gunthorpe , Abdiel Janulgue , Alexander Potapenko , Alex Gaynor , Andrew Morton , Christoph Hellwig , Danilo Krummrich , David Hildenbrand , iommu@lists.linux.dev, Jason Wang , Jens Axboe , Joerg Roedel , Jonathan Corbet , Juergen Gross , kasan-dev@googlegroups.com, linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nvme@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-trace-kernel@vger.kernel.org, Madhavan Srinivasan , Masami Hiramatsu , Michael Ellerman , "Michael S. Tsirkin" , Miguel Ojeda , Robin Murphy , rust-for-linux@vger.kernel.org, Sagi Grimberg , Stefano Stabellini , Steven Rostedt , virtualization@lists.linux.dev, Will Deacon , xen-devel@lists.xenproject.org Subject: Re: [PATCH v6 00/16] dma-mapping: migrate to physical address-based API Message-ID: References: <0db9bce5-40df-4cf5-85ab-f032c67d5c71@samsung.com> <20250912090327.GU341237@unreal> <20250920155352.GH10800@unreal> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250920155352.GH10800@unreal> X-Stat-Signature: mcq5oia1n9jh7q94scofnf3jmu7i8nt1 X-Rspamd-Queue-Id: 40D2B4000C X-Rspam-User: X-Rspamd-Server: rspam03 X-HE-Tag: 1758415653-724939 X-HE-Meta: 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 BN/Yb9bV TurEwOerk9SExlJrdGPDlTb+NhVd2Rf9J0Hgw0HNLJnRC3jXNCSkhO3hZzMFGMsxiB8qXa7r64zjneXp+mYxpp8osimO1ScMkdBA3Wx9d3/VhehPBPANuQlFCgaAIZPCvkuvRO/fpGFjJBOzsjsRVaVgq5eyjKs6xCspETr/RbOLnUUcQdwiY4zE0vid4+UUpYpRwaN06wjgkccEfan5+Bg0Ll18FqKuh0DevUuTXZyLdjV1vpAs9d7drbA/NmtmpjMUlNNdqeH0g0/AtYZ7GkvboeSS1VZf0OLzU8Ve0V3Ft+ohxz/dJTCM/Dohnd4aqmZew X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, Sep 20, 2025 at 06:53:52PM +0300, Leon Romanovsky wrote: > On Fri, Sep 19, 2025 at 10:08:21AM -0600, Keith Busch wrote: > > On Fri, Sep 12, 2025 at 12:03:27PM +0300, Leon Romanovsky wrote: > > > On Fri, Sep 12, 2025 at 12:25:38AM +0200, Marek Szyprowski wrote: > > > > > > > > > > This series does the core code and modern flows. A followup series > > > > > will give the same treatment to the legacy dma_ops implementation. > > > > > > > > Applied patches 1-13 into dma-mapping-for-next branch. Let's check if it > > > > works fine in linux-next. > > > > > > Thanks a lot. > > > > Just fyi, when dma debug is enabled, we're seeing this new warning > > below. I have not had a chance to look into it yet, so I'm just > > reporting the observation. > > Did you apply all patches or only Marek's branch? > I don't get this warning when I run my NVMe tests on current dmabuf-vfio branch. This was the snapshot of linux-next from the 20250918 tag. It doesn't have the full patchset applied. One other thing to note, this was runing on arm64 platform using smmu configured with 64k pages. If your iommu granule is 4k instead, we wouldn't use the blk_dma_map_direct path.