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Mon, 11 Sep 2023 07:13:56 -0500 From: Vasant Hegde To: , CC: , , , , Vasant Hegde Subject: [PATCH v2 08/11] iommu/amd: Add support for page response Date: Mon, 11 Sep 2023 12:10:43 +0000 Message-ID: <20230911121046.1025732-9-vasant.hegde@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230911121046.1025732-1-vasant.hegde@amd.com> References: <20230911121046.1025732-1-vasant.hegde@amd.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002529E:EE_|SJ0PR12MB8615:EE_ X-MS-Office365-Filtering-Correlation-Id: b21902e5-5b36-49d7-3a4a-08dbb2c09466 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(396003)(136003)(346002)(39860400002)(376002)(451199024)(186009)(1800799009)(82310400011)(46966006)(40470700004)(36840700001)(5660300002)(70206006)(7696005)(8676002)(8936002)(44832011)(41300700001)(70586007)(4326008)(54906003)(2906002)(478600001)(6666004)(316002)(336012)(26005)(16526019)(426003)(2616005)(1076003)(47076005)(36860700001)(83380400001)(81166007)(110136005)(82740400003)(356005)(40460700003)(86362001)(40480700001)(36756003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Sep 2023 12:13:59.5624 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b21902e5-5b36-49d7-3a4a-08dbb2c09466 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002529E.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB8615 From: Suravee Suthikulpanit This generates AMD IOMMU COMPLETE_PPR_REQUEST for the specified device with the specified PRI Response Code. Signed-off-by: Suravee Suthikulpanit Signed-off-by: Wei Huang Signed-off-by: Vasant Hegde --- drivers/iommu/amd/amd_iommu.h | 3 +++ drivers/iommu/amd/iommu.c | 1 + drivers/iommu/amd/ppr.c | 15 +++++++++++++++ 3 files changed, 19 insertions(+) diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index a85503259727..bfd9f705c0cc 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -55,6 +55,9 @@ void amd_iommu_gcr3_uninit(struct iommu_dev_data *dev_data); /* IOPF */ int amd_iommu_iopf_init(struct amd_iommu *iommu); void amd_iommu_iopf_uninit(struct amd_iommu *iommu); +int amd_iommu_page_response(struct device *dev, + struct iopf_fault *evt, + struct iommu_page_response *resp); struct amd_iommu *get_amd_iommu(unsigned int idx); u8 amd_iommu_pc_get_max_banks(unsigned int idx); diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index e11a705df665..646873e3790a 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -2610,6 +2610,7 @@ const struct iommu_ops amd_iommu_ops = { .dev_enable_feat = amd_iommu_dev_enable_feature, .dev_disable_feat = amd_iommu_dev_disable_feature, .remove_dev_pasid = amd_iommu_remove_dev_pasid, + .page_response = amd_iommu_page_response, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = amd_iommu_attach_device, .map_pages = amd_iommu_map_pages, diff --git a/drivers/iommu/amd/ppr.c b/drivers/iommu/amd/ppr.c index 9816d7dbcbf0..2a0414e3d689 100644 --- a/drivers/iommu/amd/ppr.c +++ b/drivers/iommu/amd/ppr.c @@ -152,3 +152,18 @@ void amd_iommu_iopf_uninit(struct amd_iommu *iommu) raw_spin_unlock_irqrestore(&iommu->lock, flags); } + +int amd_iommu_page_response(struct device *dev, + struct iopf_fault *evt, + struct iommu_page_response *resp) +{ + struct pci_dev *pdev; + + if (!dev || !dev_is_pci(dev)) + return -ENODEV; + + pdev = to_pci_dev(dev); + + return amd_iommu_complete_ppr(pdev, resp->pasid, resp->code, + resp->grpid); +} -- 2.31.1