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Thu, 10 Sep 2026 16:17:35 -0700 From: Nicolin Chen To: , , , "Jonathan Cameron" CC: , , , , , , , Jean-Philippe Brucker , "Eric Auger" , , , , , , , , , Subject: [PATCH v4 12/15] iommu/arm-smmu-v3: Allocate IOPF queue for ARM_SMMU_FEAT_PRI Date: Thu, 10 Sep 2026 16:17:04 -0700 Message-ID: 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: BN2PEPF0000A893:EE_|SA1PR12MB8141:EE_ X-MS-Office365-Filtering-Correlation-Id: aee1ada6-fdfe-486b-9637-08df0f91c0a6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700016|7416014|1800799024|82310400026|23010399003|10067099003|56012099006|11063799006|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(36860700016)(7416014)(1800799024)(82310400026)(23010399003)(10067099003)(56012099006)(11063799006)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: fXVCNPC0Zc9s05UhiasYVt+hptVniqBdXN7o2G3ICT9k/oB3oKFHGw/tP20IZX1wNK3CxzXhH/2qjMmUmwQPjUFqWD2NcIR30J5Gbf9keGSBa6KSdCWdOhQfUgnm1g7O0DpUo6Cng0CBK5Bp+fhpoHUEFjKRsqtbhoEA0b9SMjj3LKmqdHQcqqs8c/IJk/ZUBYTE952FTVnHmeuu/E7GXk7YHeAoOxd+dZuoVS+jqARCtLpKNMAZgl9SUq7RDKMPxIJLXZgMzJivLkIHd7npiVXAW+BONlbpq0dDqmmdg0BQ3UvcuMu/Xqwjb9vG1BWwKgYE+/t+tmv7ToN8+MAK6wq690vff8nVTr7Y+UvNMspo/4be9hrYpYOuq4PNNF8rZlJyqDOf8HycX55aoGZjrz4Ry2UNhvQhOFy3i/du28eX/hHa28/GfAI1xLOkgb8I X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Sep 2026 23:17:58.4893 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aee1ada6-fdfe-486b-9637-08df0f91c0a6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF0000A893.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB8141 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: Claude:claude-opus-4-8 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 0a15556c9a558..3cc2d365d2d66 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -4740,7 +4740,7 @@ 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