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Tue, 15 Sep 2026 09:38:46 -0700 From: Nicolin Chen To: , , , "Jonathan Cameron" CC: , , , , , , , Jean-Philippe Brucker , "Eric Auger" , , , , , , , , , Subject: [PATCH v5 12/15] iommu/arm-smmu-v3: Allocate IOPF queue for ARM_SMMU_FEAT_PRI Date: Tue, 15 Sep 2026 09:38:24 -0700 Message-ID: <28b828e4e1368d95b57aa231abab2194f397aae5.1789446520.git.nicolinc@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00018072:EE_|DS7PR12MB6264:EE_ X-MS-Office365-Filtering-Correlation-Id: ddc893b5-5460-4eb0-9fcc-08df1347e227 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|82310400026|36860700016|376014|23010399003|1800799024|22082099003|18002099003|11063799006|56012099006|10067099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Isk8P7s+Dx78xM69qrnYOf32b3H+/5zfqr4a2NyCiu+NqqIVrDnLeizV0nR39WQYTdDkoBiNZ7OfHwAK+EAI+feVgNcZTy8B+XTSGKs4rU+6IZWF9jniaoCWGWW4wghA5r8bwMGihirW/PZQOirw+oBk8hhycPRUe04yOTDW7fNk6yKnQTkqI4Ye4+B6UPkc30tBREQKQb2imLuMFY61BrbyhXnFalUY4blqmixb5JKJKWQji/PGtieeGEBjTQkHPZepfa/n1yiARA+WyTArFMCWfkqvdyXSDkCNBA71rqUJRW7ao+he7U6o72w24iV/K1uw9my4eW/GjlFHG6HFba98gf37nXbXLHFRTPX+bAjKCzKkZQfHmWlNZTO0Z9PvnHL906iuAhwnslCjzN4MlqLV+TkKlxiQRyK+vjteHDikd2xAK6Ikp2yu4osDN14e X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Sep 2026 16:39:16.5884 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ddc893b5-5460-4eb0-9fcc-08df1347e227 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00018072.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB6264 After the previous change drops the FEAT_SVA gate, arm_smmu_init_queues() allocates smmu->evtq.iopf when the SMMU advertises FEAT_STALLS. PRI support is being added on top of the IOPF infrastructure, so extend the allocation condition to cover SMMUs that advertise FEAT_PRI without FEAT_STALLS. Reviewed-by: Jonathan Cameron Assisted-by: LLM Signed-off-by: Nicolin Chen --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 7c9b3bcdbf17e..a4dbceae6fe1f 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -4753,7 +4753,7 @@ static int arm_smmu_init_queues(struct arm_smmu_device *smmu) if (ret) return ret; - if (smmu->features & ARM_SMMU_FEAT_STALLS) { + if (smmu->features & (ARM_SMMU_FEAT_STALLS | ARM_SMMU_FEAT_PRI)) { smmu->evtq.iopf = iopf_queue_alloc(dev_name(smmu->dev)); if (!smmu->evtq.iopf) return -ENOMEM; -- 2.43.0