From patchwork Fri Nov 30 13:22:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10706271 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 70C8013A4 for ; Fri, 30 Nov 2018 13:24:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5FBAC2D0A6 for ; Fri, 30 Nov 2018 13:24:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 53D422EAD1; Fri, 30 Nov 2018 13:24:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5594A2D0A6 for ; Fri, 30 Nov 2018 13:24:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727495AbeLAAd2 (ORCPT ); Fri, 30 Nov 2018 19:33:28 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:50322 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726802AbeLAAd2 (ORCPT ); Fri, 30 Nov 2018 19:33:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type: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=QOdsrc/faqsZxnU8wIA40QZooNAmBFxTGNTU9fzg/4E=; b=V/EM1xYN3rmZMWR+v1LC70Xb0f Y8zhSJdnLRfLfm6hJkATYs/RrIRQeyjZsWsbCbek89q2hBMpdfp/3f8k4BEcg2SIdxqNTQ7FlShn7 eK04xBXeWEHDGgCFoz1E25+fNb2wqjm86TQfSse9X+5EAQwCbZmk1dMibOOp99Sv2qkSY8LfNnG/V 6Pz/hlms5hjSjko8yiy3SVpKN97J4dL99cOVCikEB0nAOx8prEWQff57xXXOvSt0sI571ib+8Lb7d 6FUS4cZUeryqDZ1LZ+mD3+qaxUx3Q9g5/i6jydq5gFhhijf8/9mFPpZI2VmoUR4sMbHQTq7tFFsqa 238ZHVNQ==; Received: from 089144206221.atnat0015.highway.bob.at ([89.144.206.221] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gSilt-0004wY-A1; Fri, 30 Nov 2018 13:23:53 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: Linus Torvalds , Jon Mason , Joerg Roedel , David Woodhouse , Marek Szyprowski , Robin Murphy , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, xen-devel@lists.xenproject.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 18/23] iommu/intel: small map_page cleanup Date: Fri, 30 Nov 2018 14:22:26 +0100 Message-Id: <20181130132231.16512-19-hch@lst.de> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181130132231.16512-1-hch@lst.de> References: <20181130132231.16512-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Pass the page + offset to the low-level __iommu_map_single helper (which gets renamed to fit the new calling conventions) as both callers have the page at hand. Signed-off-by: Christoph Hellwig --- drivers/iommu/intel-iommu.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 41a4b8808802..66b4444398ae 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3597,9 +3597,11 @@ static int iommu_no_mapping(struct device *dev) return 0; } -static dma_addr_t __intel_map_single(struct device *dev, phys_addr_t paddr, - size_t size, int dir, u64 dma_mask) +static dma_addr_t __intel_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, int dir, + u64 dma_mask) { + phys_addr_t paddr = page_to_phys(page) + offset; struct dmar_domain *domain; phys_addr_t start_paddr; unsigned long iova_pfn; @@ -3661,8 +3663,7 @@ static dma_addr_t intel_map_page(struct device *dev, struct page *page, enum dma_data_direction dir, unsigned long attrs) { - return __intel_map_single(dev, page_to_phys(page) + offset, size, - dir, *dev->dma_mask); + return __intel_map_page(dev, page, offset, size, dir, *dev->dma_mask); } static void intel_unmap(struct device *dev, dma_addr_t dev_addr, size_t size) @@ -3753,9 +3754,8 @@ static void *intel_alloc_coherent(struct device *dev, size_t size, return NULL; memset(page_address(page), 0, size); - *dma_handle = __intel_map_single(dev, page_to_phys(page), size, - DMA_BIDIRECTIONAL, - dev->coherent_dma_mask); + *dma_handle = __intel_map_page(dev, page, 0, size, DMA_BIDIRECTIONAL, + dev->coherent_dma_mask); if (*dma_handle) return page_address(page); if (!dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT))