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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 83CD0C27C6E for ; Thu, 13 Jun 2024 15:20:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 093AA10EABA; Thu, 13 Jun 2024 15:20:57 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="CAx2Ancx"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id 63E8110EABA for ; Thu, 13 Jun 2024 15:20:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1718292043; x=1749828043; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=ZeP8O4jFX/EotO+GRLZQnKzOMi9yxaJPUT0rTKKYrnk=; b=CAx2Ancx6li0OzCnFyJRQJ/+XLQogiBbQltaTJOgG92eXkRy1lOS6orl 4uBL+hZ7G3apLV8T0AoHsd52/yBITxGoYuvBVEbinLkY8US3mXGkyy2cS x6zprz3YavaNegCx7ddyOJCrZ/pXs8F6MuL606jKbKcbkLDNZ4N20UPBd TGUznvAW4a8SLVjZMlZR/e7Eu8d8gpVie5+qXkAtpc6ab9b464AXErCzH SV+fhxJ+6kQUa1x9EgmlGZ11h5mdTDXV2e2XV9cOI65Zru3LpjHlueJCd wMLskO1Lfp6VPIf7IFF4C5ga5MDkAg1NQ3KxrzgitLkRRt4IMSxUaQ2Mc Q==; X-CSE-ConnectionGUID: 4K529Qr6QMSZlovfA1gUUA== X-CSE-MsgGUID: +n9nUXBIQ3yUkCWxq62WeA== X-IronPort-AV: E=McAfee;i="6700,10204,11102"; a="15348636" X-IronPort-AV: E=Sophos;i="6.08,235,1712646000"; d="scan'208";a="15348636" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jun 2024 08:20:41 -0700 X-CSE-ConnectionGUID: kade7wTLR1GyGMosFo2KAA== X-CSE-MsgGUID: yFcW+8DfQg6vS1XNGSNVXg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,235,1712646000"; d="scan'208";a="40135067" Received: from szeng-desk.jf.intel.com ([10.165.21.149]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jun 2024 08:20:40 -0700 From: Oak Zeng To: intel-xe@lists.freedesktop.org Subject: [CI 06/42] iommu/dma: Implement link/unlink page callbacks Date: Thu, 13 Jun 2024 11:30:52 -0400 Message-Id: <20240613153128.681864-6-oak.zeng@intel.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20240613153128.681864-1-oak.zeng@intel.com> References: <20240613153128.681864-1-oak.zeng@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" From: Leon Romanovsky Add an implementation of link/unlink interface to perform in map/unmap pages in fast patch for pre-allocated IOVA. Signed-off-by: Leon Romanovsky --- drivers/iommu/dma-iommu.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index dbef2581a98c..ddf402e7c8a3 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -1766,6 +1766,21 @@ static void iommu_dma_free_iova(struct device *dev, dma_addr_t iova, __iommu_dma_free_iova(cookie, iova, size, &iotlb_gather); } +static dma_addr_t iommu_dma_link_range(struct device *dev, struct page *page, + unsigned long offset, dma_addr_t iova, + size_t size, enum dma_data_direction dir, + unsigned long attrs) +{ + return __iommu_dma_map_pages(dev, page, offset, iova, size, dir, attrs); +} + +static void iommu_dma_unlink_range(struct device *dev, dma_addr_t addr, + size_t size, enum dma_data_direction dir, + unsigned long attrs) +{ + __iommu_dma_unmap_pages(dev, addr, size, dir, attrs, false); +} + static const struct dma_map_ops iommu_dma_ops = { .flags = DMA_F_PCI_P2PDMA_SUPPORTED | DMA_F_CAN_SKIP_SYNC, @@ -1792,6 +1807,8 @@ static const struct dma_map_ops iommu_dma_ops = { .max_mapping_size = iommu_dma_max_mapping_size, .alloc_iova = iommu_dma_alloc_iova, .free_iova = iommu_dma_free_iova, + .link_range = iommu_dma_link_range, + .unlink_range = iommu_dma_unlink_range, }; void iommu_setup_dma_ops(struct device *dev) -- 2.26.3