From nobody Fri Sep 19 07:18:44 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0615AC4321E for ; Mon, 28 Nov 2022 06:56:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229677AbiK1G4X (ORCPT ); Mon, 28 Nov 2022 01:56:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229936AbiK1Gzz (ORCPT ); Mon, 28 Nov 2022 01:55:55 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B59371582A for ; Sun, 27 Nov 2022 22:55:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669618530; x=1701154530; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=9D0XyFvFSOhAEwulu1xI29MelRcePwGMxUZNH4H/TSo=; b=Oz8jptwmIbbvJV2LEPfVub3KC6DSc9pRXanF7etE2MzGOsrZXhhIvzvM d2D1xxFforpFLbzY6z7RH7i2k2TA1ivaCFmpsQXMQgJMNNL357ZFSUSaM /Dy+oWHILmSk3xTYWX2JvgKxblsO+9/k39OGTlXJ5ashlIiAcBrEn8nw2 Nt9Iy++DZPtef+u1N4mxwioijmvwpdSXeAcJXX321PvZjyKGc+co11XD1 ZBC+vD10VKCkxzJAdcE1xePd/SDFXc99VCu/ReLUymbTF8IEvGgGqrQav 7c11GdRroLgGF3zFwmXYBcy5iEw46WbTv0nEtkPkaWtuqrgWw0be6vL2O A==; X-IronPort-AV: E=McAfee;i="6500,9779,10544"; a="379016263" X-IronPort-AV: E=Sophos;i="5.96,199,1665471600"; d="scan'208";a="379016263" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2022 22:55:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10544"; a="674121106" X-IronPort-AV: E=Sophos;i="5.96,199,1665471600"; d="scan'208";a="674121106" Received: from allen-box.sh.intel.com ([10.239.159.48]) by orsmga008.jf.intel.com with ESMTP; 27 Nov 2022 22:55:22 -0800 From: Lu Baolu To: Joerg Roedel , Jason Gunthorpe , Christoph Hellwig , Kevin Tian , Will Deacon , Robin Murphy , Jean-Philippe Brucker Cc: Suravee Suthikulpanit , Hector Martin , Sven Peter , Rob Clark , Marek Szyprowski , Krzysztof Kozlowski , Andy Gross , Bjorn Andersson , Yong Wu , Matthias Brugger , Heiko Stuebner , Matthew Rosato , Orson Zhai , Baolin Wang , Chunyan Zhang , Chen-Yu Tsai , Thierry Reding , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH v3 12/20] iommu/msm: Add set_platform_dma callback Date: Mon, 28 Nov 2022 14:46:40 +0800 Message-Id: <20221128064648.1934720-13-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221128064648.1934720-1-baolu.lu@linux.intel.com> References: <20221128064648.1934720-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This IOMMU driver doesn't support default domain. Add the implementation of set_platform_dma callback so that the IOMMU core could return the DMA control. Signed-off-by: Lu Baolu --- drivers/iommu/msm_iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c index c60624910872..3eb1bc668cad 100644 --- a/drivers/iommu/msm_iommu.c +++ b/drivers/iommu/msm_iommu.c @@ -470,6 +470,14 @@ static void msm_iommu_detach_dev(struct iommu_domain *= domain, spin_unlock_irqrestore(&msm_iommu_lock, flags); } =20 +static void msm_iommu_set_platform_dma(struct device *dev) +{ + struct iommu_domain *domain =3D iommu_get_domain_for_dev(dev); + + if (domain) + msm_iommu_detach_dev(domain, dev); +} + static int msm_iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t pa, size_t pgsize, size_t pgcount, int prot, gfp_t gfp, size_t *mapped) @@ -678,6 +686,7 @@ static struct iommu_ops msm_iommu_ops =3D { .domain_alloc =3D msm_iommu_domain_alloc, .probe_device =3D msm_iommu_probe_device, .device_group =3D generic_device_group, + .set_platform_dma =3D msm_iommu_set_platform_dma, .pgsize_bitmap =3D MSM_IOMMU_PGSIZES, .of_xlate =3D qcom_iommu_of_xlate, .default_domain_ops =3D &(const struct iommu_domain_ops) { --=20 2.34.1