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Wed, 23 Aug 2023 09:06:39 -0500 From: Vasant Hegde To: , CC: , , , , Vasant Hegde Subject: [PATCH RESEND 07/10] iommu/amd: Add support for page response Date: Wed, 23 Aug 2023 14:04:12 +0000 Message-ID: <20230823140415.729050-8-vasant.hegde@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230823140415.729050-1-vasant.hegde@amd.com> References: <20230823140415.729050-1-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: CO1PEPF000042A9:EE_|CYYPR12MB8963:EE_ X-MS-Office365-Filtering-Correlation-Id: 2825ec32-137b-4ad5-db90-08dba3e22e34 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)(39860400002)(396003)(136003)(346002)(376002)(186009)(1800799009)(451199024)(82310400011)(36840700001)(40470700004)(46966006)(54906003)(70586007)(70206006)(316002)(110136005)(8936002)(8676002)(2616005)(4326008)(1076003)(40460700003)(41300700001)(82740400003)(356005)(478600001)(81166007)(36756003)(6666004)(7696005)(40480700001)(2906002)(83380400001)(47076005)(86362001)(36860700001)(426003)(44832011)(5660300002)(16526019)(26005)(336012)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Aug 2023 14:06:43.0896 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2825ec32-137b-4ad5-db90-08dba3e22e34 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: CO1PEPF000042A9.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8963 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 5395d97486c8..167541bdcf1d 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -60,6 +60,9 @@ int amd_iommu_sva_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 iommu_fault_event *event, + 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 5234b1ee8f8b..948f9bf47e68 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -2622,6 +2622,7 @@ 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 2e8d55657cb5..8cbcdb9c1669 100644 --- a/drivers/iommu/amd/ppr.c +++ b/drivers/iommu/amd/ppr.c @@ -153,3 +153,18 @@ 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 iommu_fault_event *event, + 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