From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D973E341ACD; Tue, 19 Aug 2025 17:38:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755625110; cv=none; b=t4e0znte+JbAmvsag7UroBMO5l6RBJnr6gTie9vc+uxIHChEtTrwOxNSIwC6/DZNEmLy2Z/F60PjdV3witOqCSsiZsUEJddNHAlMa5tFeuKrIdlPnYhIcsu4MnWFcAH7B1by8TjlhuK6cKQV/W1U+RSJSjnlQlRFNHvlp+GMI+o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755625110; c=relaxed/simple; bh=0mJoy+46tPnckyRiCMrZ6rM11HgiRAqoXhfeDURewQs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rVofnsLLmtILznKuDpiB8UpmR2HlngWmCLBoPFtYHoJhSeXdvsebmSmmyMs8nUX6Q+qpAwUJMxIiJntvecL+6N3GTZuEuUBK9B48hfX0astTKbGDoQoyJIQx8k5RwFWoeDntSNCjS1bI4nUcsn2XD2PqoAw/1UodtnJ1kaylvQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mqPmNYet; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mqPmNYet" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55B1EC4CEF4; Tue, 19 Aug 2025 17:38:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755625109; bh=0mJoy+46tPnckyRiCMrZ6rM11HgiRAqoXhfeDURewQs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mqPmNYet1sH32wQnvqz+VvZ80hlj8hmAn5LZc210nMHXG8bXYuHHo6lQnpRQ7wdDm AVkPPjVfSjLNW0DehbYvlIM2mXfpwOQAjPxs6e3RlPIo73ds9O4X7lgEElc8ORAi/f C/x1WmcQqUdWnZImWQk08xqztT32jxKdhvXMOS9p8adbr0qesEwjEYXcIE7Gr89B9V D5kxqWCfk0RMLfyN34FLwGfWViKqrxfYSCkMcFA4I+yentRF7/d5qM2RviS+FzeTgP DNhrTd61vuyUNS97sahLp3RYlTbC6p901YEbBgWhZmWbk3sGcF6U+DBlT0qK2dJfvC h1+6GBB7poGFg== From: Leon Romanovsky To: Marek Szyprowski Cc: Leon Romanovsky , Jason Gunthorpe , Abdiel Janulgue , Alexander Potapenko , Alex Gaynor , Andrew Morton , Christoph Hellwig , Danilo Krummrich , 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 v4 10/16] xen: swiotlb: Open code map_resource callback Date: Tue, 19 Aug 2025 20:36:54 +0300 Message-ID: X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 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 da1a7d3d377c..dd7747a2de87 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, }; -- 2.50.1