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Fri, 9 Jun 2023 05:18:01 -0500 From: Vasant Hegde To: , CC: , , Vasant Hegde Subject: [PATCH 0/2] iommu/amd: Add PPR overflow support Date: Fri, 9 Jun 2023 10:17:44 +0000 Message-ID: <20230609101746.6412-1-vasant.hegde@amd.com> X-Mailer: git-send-email 2.34.1 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: DM6NAM11FT051:EE_|SA1PR12MB6749:EE_ X-MS-Office365-Filtering-Correlation-Id: f16943ef-8c61-464f-ac13-08db68d2cf84 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)(396003)(376002)(346002)(39860400002)(136003)(451199021)(36840700001)(40470700004)(46966006)(6666004)(36756003)(966005)(7696005)(2616005)(36860700001)(82310400005)(40480700001)(86362001)(426003)(83380400001)(47076005)(356005)(81166007)(1076003)(26005)(82740400003)(16526019)(336012)(186003)(40460700003)(8936002)(5660300002)(41300700001)(316002)(8676002)(4744005)(44832011)(2906002)(54906003)(110136005)(478600001)(70206006)(70586007)(4326008)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Jun 2023 10:18:03.6119 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f16943ef-8c61-464f-ac13-08db68d2cf84 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: DM6NAM11FT051.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB6749 Current IOMMU driver is lacking PPR log overflow handling. Add logic to restart PPR log after an overflow has occurred. This patch applies on top of cleanup series: https://lore.kernel.org/linux-iommu/20230609090631.6052-1-vasant.hegde@amd.com/T/#t Vasant Hegde (2): iommu/amd: Generalize log overflow handling iommu/amd: Handle PPR log overflow drivers/iommu/amd/amd_iommu.h | 1 + drivers/iommu/amd/amd_iommu_types.h | 5 ++- drivers/iommu/amd/init.c | 60 ++++++++++++++++++++--------- drivers/iommu/amd/iommu.c | 13 +++++-- 4 files changed, 57 insertions(+), 22 deletions(-) -- 2.31.1