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Wed, 28 Jun 2023 00:46:23 -0500 From: Vasant Hegde To: , CC: , Vasant Hegde Subject: [PATCH 1/3] iommu/amd: Disable PPR log/interrupt in iommu_disable() Date: Wed, 28 Jun 2023 05:45:52 +0000 Message-ID: <20230628054554.6131-2-vasant.hegde@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230628054554.6131-1-vasant.hegde@amd.com> References: <20230628054554.6131-1-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: CO1NAM11FT105:EE_|DM8PR12MB5495:EE_ X-MS-Office365-Filtering-Correlation-Id: dcf12856-f175-4535-c97f-08db779b0373 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:(13230028)(4636009)(376002)(39860400002)(396003)(346002)(136003)(451199021)(36840700001)(40470700004)(46966006)(82310400005)(1076003)(36860700001)(70206006)(40460700003)(36756003)(5660300002)(44832011)(356005)(86362001)(8936002)(8676002)(41300700001)(316002)(4326008)(81166007)(70586007)(82740400003)(40480700001)(47076005)(2906002)(26005)(186003)(478600001)(4744005)(16526019)(2616005)(7696005)(110136005)(426003)(336012)(54906003)(6666004)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Jun 2023 05:46:26.3050 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: dcf12856-f175-4535-c97f-08db779b0373 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: CO1NAM11FT105.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR12MB5495 Similar to other logs, disable PPR log/interrupt in iommu_disable() path. Reviewed-by: Suravee Suthikulpanit Signed-off-by: Vasant Hegde --- drivers/iommu/amd/init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 30f09e786f7b..94c91b6ee603 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -483,6 +483,10 @@ static void iommu_disable(struct amd_iommu *iommu) iommu_feature_disable(iommu, CONTROL_GALOG_EN); iommu_feature_disable(iommu, CONTROL_GAINT_EN); + /* Disable IOMMU PPR logging */ + iommu_feature_disable(iommu, CONTROL_PPRLOG_EN); + iommu_feature_disable(iommu, CONTROL_PPRINT_EN); + /* Disable IOMMU hardware itself */ iommu_feature_disable(iommu, CONTROL_IOMMU_EN); -- 2.31.1