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 E434FC25B75 for ; Thu, 30 May 2024 00:33:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2104910FCDD; Thu, 30 May 2024 00:33:32 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="icj7SPhf"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id DB3E310FCDD for ; Thu, 30 May 2024 00:33:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717029210; x=1748565210; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=oLsMSznn/AbPS64f76IqG/FQ5by1uq1VDBF4eRf58CM=; b=icj7SPhftWfV4hmlumVxmr/OTnVe8dpiB8QALK6mpvyxw1fShOGuuR3d 2cuv5Eh6UrUIy/7b25kwpPZ5H7O8AijyMZDGjC5n9dOzGQiMCPpIWEeM2 En8RRxWgIWsV0RS23ZASi8jnPlQAMztX3tBpEeBsINdR+sh6H9WC/Dca8 kkHBUiK1Ln6JtisHoBVtNVxO7E6zdWKSoIel4COdegFiR4ECwOBs/bYk4 p1GEV81rO6ypsvvKzu+FdheT1nlr67Rmjor8cEG4fKcprIJIe9pAvRfz1 C4AGnRD2IkYlNppYw19Ic/vqcgJI4RKz3+a9Kos32iQOwVpgz5EIq6/GP g==; X-CSE-ConnectionGUID: +Qd0Mp0JRimuV/CULjtC7A== X-CSE-MsgGUID: lJxuKSNCR6WauWjNFTK6Yw== X-IronPort-AV: E=McAfee;i="6600,9927,11087"; a="30975378" X-IronPort-AV: E=Sophos;i="6.08,199,1712646000"; d="scan'208";a="30975378" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 May 2024 17:33:22 -0700 X-CSE-ConnectionGUID: so53tArFQRWk9qU6Veozrw== X-CSE-MsgGUID: N27z4s7iTNSnDPYiMjlO5w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,199,1712646000"; d="scan'208";a="40088729" Received: from szeng-desk.jf.intel.com ([10.165.21.149]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 May 2024 17:33:21 -0700 From: Oak Zeng To: intel-xe@lists.freedesktop.org Subject: [CI v3 06/26] iommu/dma: Implement link/unlink page callbacks Date: Wed, 29 May 2024 20:47:12 -0400 Message-Id: <20240530004732.84898-6-oak.zeng@intel.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20240530004732.84898-1-oak.zeng@intel.com> References: <20240530004732.84898-1-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 7be2999169bd..e90dc56e5ee4 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