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Thu, 6 Jun 2024 16:47:58 -0700 Date: Thu, 6 Jun 2024 16:47:57 -0700 From: Nicolin Chen To: Shameer Kolothum CC: , , , , , , , , , , , , , Subject: Re: [PATCH v5 6/6] iommu/arm-smmu-v3: Enable HTTU for stage1 with io-pgtable mapping Message-ID: References: <20240606133302.17540-1-shameerali.kolothum.thodi@huawei.com> <20240606133302.17540-7-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20240606133302.17540-7-shameerali.kolothum.thodi@huawei.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9DB:EE_|SJ1PR12MB6097:EE_ X-MS-Office365-Filtering-Correlation-Id: be924fb1-7326-4cc2-1cc6-08dc86832039 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|376005|36860700004|1800799015|7416005|82310400017; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?H897/8zbbjM7qelidfa7U0T9tTmyEkMWoWacefAT7ULtI3pbXnbUZd7aJWE3?= =?us-ascii?Q?bPhIJAVtTouqNAIgKVC1P5rrSPYb3rlqemywQ4BTWvR038OqseQ+Q04nmisA?= =?us-ascii?Q?4wBUBovX73JBhK5+BhyWtGDX6XZ9zCLRY32+6VmxqI+mTvprb9xTFHXhcnUR?= =?us-ascii?Q?Sf29AMpxw5B7Gd5D74XD12OFzxpq80GlZMCUHmc36MLsojrtaaarf7YgNXj2?= =?us-ascii?Q?yWfYug7sJRnUr8z3+mioeI7O8R6/ZGHaZvtLYsohk89yBe0ClMZc9nJeyYy9?= =?us-ascii?Q?6/2mLVSiLnyfRkE5Xx5F42crnFpLRPx4WgPTRsbPJ8ZqKS6fd2AJgxWfI0ic?= =?us-ascii?Q?qNLNP9WDWpGq+o2vrhS/rKJ/T8W00rrXNp9taqyX3EwTyQPTG8hnS9JpzZwj?= =?us-ascii?Q?p8uYkvFN/FT3JHb0ZwXsI9nhXxdw2V020S4QAVkK49xlYVhZOFDXrmgV59BL?= =?us-ascii?Q?P053B6XZTdg1skHW/E6mBC8RDa6OzIr7Auzf8ok7o10dJHKarNI21JRPRbPx?= =?us-ascii?Q?PB6J0G+KzkMHAbougwvoAqzsB1EcthvWoVtBnn2DEo0SWWK7lXdTG1z7L0Xg?= =?us-ascii?Q?LR7XM32/cPvupAJCnQCWEvfJA7T2LjPArsuxi2cQzKNSoKPwuKaAO9VezTSJ?= =?us-ascii?Q?eAscwBFF8vedx+bfES05suS+L9Kb73ARYcrxRaS8yLJ4eZQAHrrWtGPyZNN+?= =?us-ascii?Q?zJN/2o1bd4VcSWhW6l4IWwhRYRSj+nNVhgdx+UB1NSB9/6bSekm2mlBJNWIv?= =?us-ascii?Q?mpX+Ac9Lz4hM0MWwTJfMY+KKauvzAePj32uNeSJEU7WdQNQX4id4IvARPRar?= =?us-ascii?Q?13Tq/2zNJo593XzRrAE3govlPR7LEzuohleXsI65+EICJQHBIvZWarlN25VJ?= =?us-ascii?Q?fITqUJQ0CMjnX4p38gfS+CkdcUdykF2t2F8q9dhGjDj0q7MtGbSVVg4PUDp0?= =?us-ascii?Q?zw6aKIgUXrQvBKQA0TG8PW5wmDOqXBQ1Fcuknp8gs0eJULYwSt2KOpacIz3i?= =?us-ascii?Q?7mghFjIrD5k3zxnpM/qhjjhrIpNnofo1BUo2P1eyg5v6+lTrxJ2WvOrP9Dy1?= =?us-ascii?Q?pyRops2vc9HwCn5Xk/Nh2DyN8UVtGV+6aUYa85RjspA1NyxDUj69iVX9V+yQ?= =?us-ascii?Q?vXNqv6sHpNp3xfNFD5eL4Cw8tdn9fnzxse01C8piGI3esioIbg98CGZTO/JG?= =?us-ascii?Q?nRrS0jr9QVUMe8ax3/PHJ+/0mJpcFnk6hcfYfHSbLVVtgfexdl4ozp8LVq31?= =?us-ascii?Q?7vZ3UZ3VdH3fazSaLmhNgTSMOA99kx3EaxczN2ePxuim2opF8jf1kEQjjSU6?= =?us-ascii?Q?cZa3NSocKdnKdrzg8vAwZvS3qZVO/jD7gcU44Ir9DeCAz+NOljHWnnipIIRL?= =?us-ascii?Q?8MPmgR4FgdxZBXMbfW2UpITO7eQy27ggoEQEOcuZzs3q9U0UfQ=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230031)(376005)(36860700004)(1800799015)(7416005)(82310400017);DIR:OUT;SFP:1101; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jun 06, 2024 at 02:33:02PM +0100, Shameer Kolothum wrote: > From: Kunkun Jiang > > If io-pgtable quirk flag indicates support for hardware update of > dirty state, enable HA/HD bits in the SMMU CD and also set the DBM > bit in the page descriptor. > > Now report the dirty page tracking capability of SMMUv3 and > select IOMMUFD_DRIVER for ARM_SMMU_V3 if IOMMUFD is enabled. > > Co-developed-by: Keqian Zhu > Signed-off-by: Keqian Zhu > Signed-off-by: Kunkun Jiang > Signed-off-by: Joao Martins > Reviewed-by: Ryan Roberts > Reviewed-by: Jason Gunthorpe > Signed-off-by: Shameer Kolothum Reviewed-by: Nicolin Chen With a nit: > +static bool arm_smmu_dbm_capable(struct arm_smmu_device *smmu) > +{ > + u32 features = (ARM_SMMU_FEAT_HD | ARM_SMMU_FEAT_COHERENCY); > + > + return (smmu->features & features) == features; Following the existing coding style in the driver: return (smmu->features & ARM_SMMU_FEAT_HD) && (smmu->features & ARM_SMMU_FEAT_COHERENCY); And inline? Thanks Nicolin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel