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 26D6DC54E41 for ; Tue, 5 Mar 2024 13:33:27 +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=nX2hAFEH1HSNcc2953eD/Rf6lJqonK3MWEmZQ3VuDkE=; b=qE9JdbvsRKzyXAey3s6P6P1V2D VbiLb0/4t/AbKfyPR2gJxmnLowh1Vj2buB9sLhKj0ndwpInzc10tWFhFc03upojLqFhdn17bjT82d 5VrjIiVqzKN/VdtCQgggYj5lRGnQhAXNHnZSgVhqb1djlVf6Wr4wwOBxdc44op+nTVpvvV4FQ/ALA DRDqTx44HQ94Mz8AXsM9l7scZ2ae1Dq5JKGjFEe5xwVfSjf5jNuMvXevL7HGdNQPJ0ILIoDa/i2xm pia+Za16eeA0DEt7VmQh+BietsqMVWbHNn5Way25JrbyXdeOHxcBUFMXekJk6E4QM7zRYMZWmBmeh 4MbYRk7A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhUv8-0000000DmDK-16Xc; Tue, 05 Mar 2024 13:33:26 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhRq4-0000000CxZ3-2WoD for linux-nvme@lists.infradead.org; Tue, 05 Mar 2024 10:16:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 0330961486; Tue, 5 Mar 2024 10:16:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05EE4C433B1; Tue, 5 Mar 2024 10:15:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709633759; bh=buI8QIvB9qQbf6UKyQhoBlduuXAN0B68Jk0a66fCfeA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hD0RcuJh00bicYhn0Ta6Ju9jPnBJ6gf5WneHPY3WuSGytfQ3Rc+DL/DoEICP3FM75 TX/RbpezM81fbB7g0M+/pUDbb5pBwp/U/cmchQIoNl1PajmoWeXVhqKZvBxR2j5GQ/ Xdi601RNr9cazQkefNIGomp16HunWfV85J/ruCFKJmmEcwPO6ApMTZcJ4UuZr1UsdF IMcAM0aIzs2G0O2qY8xakXVQgmneCmZ8NqSMafyLl2qF/5B13f9WQleGpTBPKI7GT6 DWWSpgNOxOOcGpvNc8RrhGDXjyzyq5YkBJQZFkgzf+EGBUNHt2uhxv49wDRBLex/sm mq/GhRcT5gfAA== From: Leon Romanovsky To: Christoph Hellwig , Robin Murphy , Marek Szyprowski , Joerg Roedel , Will Deacon , Jason Gunthorpe , Chaitanya Kulkarni Cc: Leon Romanovsky , Jonathan Corbet , Jens Axboe , Keith Busch , Sagi Grimberg , Yishai Hadas , Shameer Kolothum , Kevin Tian , Alex Williamson , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Andrew Morton , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-nvme@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, Bart Van Assche , Damien Le Moal , Amir Goldstein , "josef@toxicpanda.com" , "Martin K. Petersen" , "daniel@iogearbox.net" , Dan Williams , "jack@suse.com" , Zhu Yanjun Subject: [RFC 06/16] iommu/dma: Implement link/unlink page callbacks Date: Tue, 5 Mar 2024 12:15:16 +0200 Message-ID: <1d3d26afcdbf95b053a3a44ceff34a4fa5334582.1709631413.git.leon@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240305_021600_868333_9CA6352F X-CRM114-Status: GOOD ( 12.23 ) X-Mailman-Approved-At: Tue, 05 Mar 2024 05:32:59 -0800 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 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 dbdd373a609a..b683c4a4e9f8 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -1752,6 +1752,21 @@ 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, .alloc = iommu_dma_alloc, @@ -1776,6 +1791,8 @@ static const struct dma_map_ops iommu_dma_ops = { .opt_mapping_size = iommu_dma_opt_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, }; /* -- 2.44.0 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 BEA01C54E41 for ; Tue, 5 Mar 2024 13:36:32 +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=nX2hAFEH1HSNcc2953eD/Rf6lJqonK3MWEmZQ3VuDkE=; b=asqjO9VqbxW37rtKbCPr4rrNUG vA3eE91qgnqu3WNh2QCh50xosNUAcvUa2eNolH43ibNINa56tO7DEJq1m3waBCROdb9gB8TQZ2UaE kEw2j6mqRJt0d+1Cf/VUweI3xLo7ZAD73C+bw9y6/gATbRwIZQV0jVjNo8qdQ16TgeazC8ahUlF5E MqvbMrjyHT50akG+zX7DhMxiAehy7AIj/Rk2peDLCW8ROq8opdY50wV9/7fPEwMUq3ga2V0o2uDIA dOCMInFKTevWbQJKYiGucrInhmDUtrf8Ix8GXBeepHCbBSQuvvZlrUWaOyNHRDnXt1Xslpr7m+lZa m/DB6sEQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhUy7-0000000DoMf-3r1A; Tue, 05 Mar 2024 13:36:31 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhRwj-0000000D0yl-4BCQ for linux-nvme@lists.infradead.org; Tue, 05 Mar 2024 10:22:56 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 15A73CE1939; Tue, 5 Mar 2024 10:22:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7864AC433F1; Tue, 5 Mar 2024 10:22:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709634171; bh=buI8QIvB9qQbf6UKyQhoBlduuXAN0B68Jk0a66fCfeA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FBK5tOW//u1gKjQCxlzqGUPpXaFkL348QNPbjQ/+tOzrARfC/uLos7xOydQJcynd5 lX86pLtUcuF5jc6LcRJ8OWZVn6oU2R7S3dQkTUA0si3K2laMD3Ys02IWRc9D2y1XNy ZZqvMacuHdCR4k2kN05WiXItBNjyqySXCtOsLJinhqehAaQ9mwbdCctrJqVcl/DE0F 9li7kyfa6BIA6dEyQqn5dPJYDuylGhoLW5mKqKiGXNE8+ch9l3l7KM2l4tGDu1XdE0 Hs2rNV+xmnL14oMRh++xYrHm5zqZt96skJuWjnQnsvbdRlfvkAjgZxO2dEsPWI8wne fTwQ5RP714BUg== From: Leon Romanovsky To: Christoph Hellwig , Robin Murphy , Marek Szyprowski , Joerg Roedel , Will Deacon , Jason Gunthorpe , Chaitanya Kulkarni Cc: Leon Romanovsky , Jonathan Corbet , Jens Axboe , Keith Busch , Sagi Grimberg , Yishai Hadas , Shameer Kolothum , Kevin Tian , Alex Williamson , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Andrew Morton , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-nvme@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, Bart Van Assche , Damien Le Moal , Amir Goldstein , "josef@toxicpanda.com" , "Martin K. Petersen" , "daniel@iogearbox.net" , Dan Williams , "jack@suse.com" , Zhu Yanjun Subject: [RFC 06/16] iommu/dma: Implement link/unlink page callbacks Date: Tue, 5 Mar 2024 12:22:07 +0200 Message-ID: <1d3d26afcdbf95b053a3a44ceff34a4fa5334582.1709631413.git.leon@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240305_022254_495939_AEC81EE6 X-CRM114-Status: GOOD ( 12.23 ) X-Mailman-Approved-At: Tue, 05 Mar 2024 05:32:59 -0800 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 Message-ID: <20240305102207.MypqMPxZYKb2ZuRnahXeOB4r4gXAOq7lQOBYKJigl04@z> 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 dbdd373a609a..b683c4a4e9f8 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -1752,6 +1752,21 @@ 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, .alloc = iommu_dma_alloc, @@ -1776,6 +1791,8 @@ static const struct dma_map_ops iommu_dma_ops = { .opt_mapping_size = iommu_dma_opt_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, }; /* -- 2.44.0