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Wed, 28 Jun 2023 00:16:58 -0500 From: Vasant Hegde To: , CC: , , , Vasant Hegde Subject: [PATCH v3 0/2] iommu/amd: Add PPR overflow support Date: Wed, 28 Jun 2023 05:16:22 +0000 Message-ID: <20230628051624.5792-1-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: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT045:EE_|BL1PR12MB5996:EE_ X-MS-Office365-Filtering-Correlation-Id: 1ab28212-0415-4f74-1682-08db7796e797 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)(136003)(396003)(39860400002)(346002)(376002)(451199021)(36840700001)(46966006)(40470700004)(70586007)(44832011)(70206006)(316002)(478600001)(4326008)(36756003)(8936002)(8676002)(5660300002)(40460700003)(1076003)(36860700001)(86362001)(110136005)(40480700001)(2906002)(54906003)(41300700001)(82310400005)(966005)(7696005)(4744005)(426003)(186003)(47076005)(6666004)(336012)(16526019)(81166007)(356005)(83380400001)(26005)(82740400003)(2616005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Jun 2023 05:17:01.6514 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1ab28212-0415-4f74-1682-08db7796e797 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: DM6NAM11FT045.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5996 Current IOMMU driver is lacking PPR log overflow handling. Add logic to restart PPR log after an overflow has occurred. Patches applies on top of iommu/next branch (commit a7a334076dd). Changes from v2 -> v3 - Added Review-by from Joao. V2 : https://lore.kernel.org/linux-iommu/20230619132346.6021-1-vasant.hegde@amd.com/ Changes from v1 -> v2: - Updated patch description - Added Review-by v1: https://lore.kernel.org/linux-iommu/20230609101746.6412-1-vasant.hegde@amd.com/ Vasant Hegde (2): iommu/amd: Generalize log overflow handling iommu/amd: Handle PPR log overflow 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