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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B4688CAC58E for ; Wed, 10 Sep 2025 05:27:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=cP4fy7+D7H5hdZTwc3EviaXgpCbdOnzec/g9AJ9Vncs=; b=4KnHCvFcrGNTLuJTgDFOhk0uvR mA9kpw5tvuWAjFHjyxpEuClY6IDQzMXF1hLA6DghPtrVtH6oryNtPiVEh1TFdP9c3RoyEoO3kpvnh 8b9xKmZycvNoC11I/r6N+G7jnqlJSm/fiF7rulR3m2sB9NM4ffXeGOdO8bXQyhUN6XXCC1jqYQasS cA8Up9mYWdjYIas6r8kHfxDIJOxNheJlycUauST4dGfb46iMb6U/zYOFI1fVwdHJO+JRC2zVlyoxu Z5X8S4GO7rmvuCvkVm4Y9ixx3OA2cfH/g5HxagQmrqNO+pLkGQ7xxgQqTdgEe2/vKTvmif/UuyqIn y4fjkJCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uwDMx-0000000C9Hq-0o4b; Wed, 10 Sep 2025 05:27:47 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uvyP0-00000007NRh-19cD for linux-nvme@lists.infradead.org; Tue, 09 Sep 2025 13:28:54 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 616B6601AB; Tue, 9 Sep 2025 13:28:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 849B1C4CEFB; Tue, 9 Sep 2025 13:28:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757424533; bh=7uEF0lKa6/2PTd5roUeWZMSJr/PVEy6yTszu34DH254=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mpt2hgsJQLyoPhqjQriUYwGxGpWOvhlRgZACUtJZjHzMze/5G5TKeJL+AIhpyHxHM vtE7nDo43ohKMBF9jSzvLXexcmcqvZC/y3uNm14s8yMrtQUg4js6SK/BCrc9vovOvy m+/ZwBtY3Q1G+3xu+k84+QsJ/t1V9cxoPLxU52E20FJDPGZnEBXHN59+tO8YeP9uQZ 6cc03DpD9wq/4u9y1z6U4q62L+IvJgAhPZxl9KlxwRXT+EJ6mm07Qgk8GBpvwvcFFE HITZ7A5WwXv0OciZ4Op8uJ/UR8Zev+4BsP82OybASTk3DMWQh9knb+FPHYLwK64zVG XT3P1zTpAz7tA== From: Leon Romanovsky To: Marek Szyprowski Cc: Leon Romanovsky , 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, Keith Busch , 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: [PATCH v6 10/16] xen: swiotlb: Open code map_resource callback Date: Tue, 9 Sep 2025 16:27:38 +0300 Message-ID: X-Mailer: git-send-email 2.51.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Tue, 09 Sep 2025 22:27:42 -0700 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org From: Leon Romanovsky General dma_direct_map_resource() is going to be removed in next patch, so simply open-code it in xen driver. Reviewed-by: Juergen Gross Reviewed-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky --- drivers/xen/swiotlb-xen.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index da1a7d3d377cf..dd7747a2de879 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -392,6 +392,25 @@ xen_swiotlb_sync_sg_for_device(struct device *dev, struct scatterlist *sgl, } } +static dma_addr_t xen_swiotlb_direct_map_resource(struct device *dev, + phys_addr_t paddr, + size_t size, + enum dma_data_direction dir, + unsigned long attrs) +{ + dma_addr_t dma_addr = paddr; + + if (unlikely(!dma_capable(dev, dma_addr, size, false))) { + dev_err_once(dev, + "DMA addr %pad+%zu overflow (mask %llx, bus limit %llx).\n", + &dma_addr, size, *dev->dma_mask, dev->bus_dma_limit); + WARN_ON_ONCE(1); + return DMA_MAPPING_ERROR; + } + + return dma_addr; +} + /* * Return whether the given device DMA address mask can be supported * properly. For example, if your device can only drive the low 24-bits @@ -426,5 +445,5 @@ const struct dma_map_ops xen_swiotlb_dma_ops = { .alloc_pages_op = dma_common_alloc_pages, .free_pages = dma_common_free_pages, .max_mapping_size = swiotlb_max_mapping_size, - .map_resource = dma_direct_map_resource, + .map_resource = xen_swiotlb_direct_map_resource, }; -- 2.51.0