From patchwork Fri Jun 16 09:30:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13282422 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 E7D30EB64D7 for ; Fri, 16 Jun 2023 09:30:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4725D10E5A0; Fri, 16 Jun 2023 09:30:53 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4838110E589; Fri, 16 Jun 2023 09:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686907848; x=1718443848; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=udkX/cgsswy+TExcMSy8dLbUVqPVtulKW+w7yxu9SyI=; b=JRsfXbOzgVPInbD5YoiJOu6LPD3+W0LXvcJUrb9zkYz4cuKtQUjlFrMr RP5YpOpZv/VeW7sYUJNBPimsY+gLagTtTexkVceUK40dlOaC4q9pN2V2Y Qwu+crkUvTqeEVsRkqcKZpsO22UOD4L1fs1R/gv9mSmTwZN5rfdWF32xF GxAGUDoObEfIBTpYfGZc5ShAZUAAZI5a6Y50cX6Vs0vXtBiaulFPwnHwu h2/5rV2Mp4ZkCc0VJBJndlF6qqH5kzCKgwc3Ch6MuOxOnoki89zDP3mUy 3yC1vdzhwByG6DAMJoUkWhjwLIFmZXTInXxVi3UslvLF0xW/q/SguWRb7 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10742"; a="387863482" X-IronPort-AV: E=Sophos;i="6.00,247,1681196400"; d="scan'208";a="387863482" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2023 02:30:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10742"; a="742601939" X-IronPort-AV: E=Sophos;i="6.00,247,1681196400"; d="scan'208";a="742601939" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga008.jf.intel.com with ESMTP; 16 Jun 2023 02:30:47 -0700 From: Yi Liu To: alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com Date: Fri, 16 Jun 2023 02:30:37 -0700 Message-Id: <20230616093042.65094-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230616093042.65094-1-yi.l.liu@intel.com> References: <20230616093042.65094-1-yi.l.liu@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v8 05/10] iommufd: Add helper to retrieve iommufd_ctx and devid X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mjrosato@linux.ibm.com, jasowang@redhat.com, xudong.hao@intel.com, zhenzhong.duan@intel.com, peterx@redhat.com, terrence.xu@intel.com, chao.p.peng@linux.intel.com, linux-s390@vger.kernel.org, yi.l.liu@intel.com, kvm@vger.kernel.org, lulu@redhat.com, yanting.jiang@intel.com, joro@8bytes.org, nicolinc@nvidia.com, yan.y.zhao@intel.com, intel-gfx@lists.freedesktop.org, eric.auger@redhat.com, intel-gvt-dev@lists.freedesktop.org, yi.y.sun@linux.intel.com, clegoate@redhat.com, cohuck@redhat.com, shameerali.kolothum.thodi@huawei.com, suravee.suthikulpanit@amd.com, robin.murphy@arm.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This is needed by the vfio-pci driver to report affected devices in the hot-reset for a given device. Tested-by: Terrence Xu Reviewed-by: Jason Gunthorpe Signed-off-by: Yi Liu --- drivers/iommu/iommufd/device.c | 12 ++++++++++++ include/linux/iommufd.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/iommu/iommufd/device.c b/drivers/iommu/iommufd/device.c index 4571344c8508..96d4281bfa7c 100644 --- a/drivers/iommu/iommufd/device.c +++ b/drivers/iommu/iommufd/device.c @@ -146,6 +146,18 @@ void iommufd_device_unbind(struct iommufd_device *idev) } EXPORT_SYMBOL_NS_GPL(iommufd_device_unbind, IOMMUFD); +struct iommufd_ctx *iommufd_device_to_ictx(struct iommufd_device *idev) +{ + return idev->ictx; +} +EXPORT_SYMBOL_NS_GPL(iommufd_device_to_ictx, IOMMUFD); + +u32 iommufd_device_to_id(struct iommufd_device *idev) +{ + return idev->obj.id; +} +EXPORT_SYMBOL_NS_GPL(iommufd_device_to_id, IOMMUFD); + static int iommufd_device_setup_msi(struct iommufd_device *idev, struct iommufd_hw_pagetable *hwpt, phys_addr_t sw_msi_start) diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h index f241bafa03da..68defed9ea48 100644 --- a/include/linux/iommufd.h +++ b/include/linux/iommufd.h @@ -25,6 +25,9 @@ void iommufd_device_unbind(struct iommufd_device *idev); int iommufd_device_attach(struct iommufd_device *idev, u32 *pt_id); void iommufd_device_detach(struct iommufd_device *idev); +struct iommufd_ctx *iommufd_device_to_ictx(struct iommufd_device *idev); +u32 iommufd_device_to_id(struct iommufd_device *idev); + struct iommufd_access_ops { u8 needs_pin_pages : 1; void (*unmap)(void *data, unsigned long iova, unsigned long length);