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Fri, 9 Jun 2023 05:20:40 -0500 From: Vasant Hegde To: , CC: , , Vasant Hegde Subject: [PATCH 0/2] iommu/amd: Interrupt handling improvements Date: Fri, 9 Jun 2023 10:20:23 +0000 Message-ID: <20230609102025.6498-1-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: CO1NAM11FT003:EE_|PH7PR12MB8122:EE_ X-MS-Office365-Filtering-Correlation-Id: 76fabc34-da3b-45e4-27bb-08db68d32ef2 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)(136003)(346002)(396003)(451199021)(40470700004)(46966006)(36840700001)(70586007)(36860700001)(83380400001)(426003)(336012)(2616005)(47076005)(8676002)(41300700001)(8936002)(70206006)(316002)(4326008)(5660300002)(16526019)(40460700003)(44832011)(82740400003)(186003)(356005)(81166007)(36756003)(82310400005)(478600001)(966005)(54906003)(40480700001)(86362001)(1076003)(6666004)(2906002)(7696005)(4744005)(110136005)(26005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Jun 2023 10:20:43.6504 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 76fabc34-da3b-45e4-27bb-08db68d32ef2 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: CO1NAM11FT003.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB8122 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 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: Add separate interrupt handler for PPR and GA log 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 | 48 ++++++++++---- drivers/iommu/amd/iommu.c | 98 ++++++++++++++++------------- 4 files changed, 102 insertions(+), 56 deletions(-) -- 2.31.1