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Mon, 19 Jun 2023 08:30:25 -0500 From: Vasant Hegde To: , CC: , Vasant Hegde Subject: [PATCH v2 0/2] iommu/amd: Interrupt handling improvements Date: Mon, 19 Jun 2023 13:30:06 +0000 Message-ID: <20230619133008.6221-1-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: CY4PEPF0000EE3A:EE_|MW4PR12MB6731:EE_ X-MS-Office365-Filtering-Correlation-Id: fa0317c1-5213-49ae-8a83-08db70c95876 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)(39860400002)(136003)(376002)(346002)(451199021)(40470700004)(36840700001)(46966006)(41300700001)(5660300002)(44832011)(8936002)(8676002)(2906002)(40460700003)(82310400005)(36756003)(40480700001)(86362001)(26005)(1076003)(54906003)(110136005)(186003)(16526019)(478600001)(7696005)(6666004)(966005)(81166007)(70586007)(70206006)(356005)(47076005)(36860700001)(4326008)(316002)(336012)(426003)(2616005)(82740400003)(83380400001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jun 2023 13:30:27.6864 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fa0317c1-5213-49ae-8a83-08db70c95876 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: CY4PEPF0000EE3A.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6731 AMD IOMMU has three different logs/interrupts (Event, PPR and GA). Currently, the IOMMU driver consolidates interrupts for all three logs to a single interrupt. This could become a bottleneck when enable GA and PPR logs simultaneously. Hence separate these interrupt to prevent potential performance issue. This series applies on top of PPR overflow support patchset [1]. [1] https://lore.kernel.org/linux-iommu/20230619132346.6021-1-vasant.hegde@amd.com/ Changes from v1 -> v2: - Moved GA log interrupt under CONFIG_IRQ_REMAP - Updated patch description V1 : https://lore.kernel.org/linux-iommu/20230609102025.6498-1-vasant.hegde@amd.com/ Vasant Hegde (2): iommu/amd: Refactor IOMMU interrupt handling logic for Event, PPR, and GA logs iommu/amd: Enable separate interrupt for PPR and GA log drivers/iommu/amd/amd_iommu.h | 3 + drivers/iommu/amd/amd_iommu_types.h | 9 +++ drivers/iommu/amd/init.c | 50 +++++++++++---- drivers/iommu/amd/iommu.c | 95 ++++++++++++++++------------- 4 files changed, 101 insertions(+), 56 deletions(-) -- 2.31.1