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Tue, 16 Apr 2024 13:48:42 -0700 Date: Tue, 16 Apr 2024 13:48:40 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , Joerg Roedel , , Robin Murphy , Will Deacon , Eric Auger , "Moritz Fischer" , Moritz Fischer , Michael Shavit , , Shameerali Kolothum Thodi , Mostafa Saleh Subject: Re: [PATCH v7 2/9] iommu/arm-smmu-v3: Make CD programming use arm_smmu_write_entry() Message-ID: References: <0-v7-cb149db3a320+3b5-smmuv3_newapi_p2_jgg@nvidia.com> <2-v7-cb149db3a320+3b5-smmuv3_newapi_p2_jgg@nvidia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2-v7-cb149db3a320+3b5-smmuv3_newapi_p2_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000F0E4:EE_|DS0PR12MB7769:EE_ X-MS-Office365-Filtering-Correlation-Id: 5c057f1a-302f-4758-6e6c-08dc5e56a754 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:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230031)(7416005)(1800799015)(376005)(82310400014)(36860700004);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 Tue, Apr 16, 2024 at 04:28:13PM -0300, Jason Gunthorpe wrote: > CD table entries and STE's have the same essential programming sequence, > just with different types. > > Have arm_smmu_write_ctx_desc() generate a target CD and call > arm_smmu_write_entry() to do the programming. Due to the way the target CD > is generated by modifying the existing CD this alone is not enough for the > CD callers to be freed of the ordering requirements. > > The following patches will make the rest of the CD flow mirror the STE > flow with precise CD contents generated in all cases. > > Signed-off-by: Michael Shavit > Tested-by: Nicolin Chen > Tested-by: Shameer Kolothum > Reviewed-by: Moritz Fischer > Signed-off-by: Jason Gunthorpe Reviewed-by: Nicolin Chen _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel