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Mon, 3 Jun 2024 22:07:13 -0700 Date: Mon, 3 Jun 2024 22:07:11 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , Joerg Roedel , , Robin Murphy , Will Deacon , Eric Auger , Jean-Philippe Brucker , Moritz Fischer , Michael Shavit , , Shameerali Kolothum Thodi Subject: Re: [PATCH v8 02/14] iommu/arm-smmu-v3: Start building a generic PASID layer Message-ID: References: <0-v8-6f85cdc10ce7+563e-smmuv3_newapi_p2b_jgg@nvidia.com> <2-v8-6f85cdc10ce7+563e-smmuv3_newapi_p2b_jgg@nvidia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2-v8-6f85cdc10ce7+563e-smmuv3_newapi_p2b_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000397AE:EE_|MN2PR12MB4191:EE_ X-MS-Office365-Filtering-Correlation-Id: a50a641c-df81-4d94-dcc1-08dc84543779 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|82310400017|1800799015|376005|36860700004|7416005; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?CtXCPtfeNBZfXoubCt4s/qL2AriTE++jAyeOJ/fsNCSLaDxg6ms17gfFTOTI?= =?us-ascii?Q?x1F+fATDO+FrQe6Y8FReeo33JYsw5CR8CG/5GDt/o3b1cLeMESEkkcDWf3T4?= =?us-ascii?Q?ULoGvGAx1mO3aR9xzRv5ah3uqxKTZrNEu4PM45J1g+PskDv+1OeQQps4Re4C?= =?us-ascii?Q?yxOZ/Zq7FHhUpuvauh8ICSxtt4QClxmFDX3w8HLkuXHpLsI1i74w0yLMN3gT?= =?us-ascii?Q?7kNoXVhIFkOSiEXtoNbColIRZ5KSi4oYN2c2/Py0elF2OETQf8nj5P5ddVQv?= =?us-ascii?Q?31terT7C9zidv/Y0sHwqQmWdv4Og4sVmoapW1UhE4h3VAYrehwzAOCTzgEf2?= =?us-ascii?Q?Jbi09pJ+SjO68PqNBiactLRydkeft7JasP78LZXXrk6FlyfUGqQsy17L9LWp?= =?us-ascii?Q?uJgf421JyN7xj6mnsstqPdEIBgk3RtB/QDlKyudFNGmVdoyMw4NGN1qfPQzq?= =?us-ascii?Q?5kCrUbupfyUS3eYZGEU5CCOKn0o2OmrukDyUp+ckHJZm3QAX7Fej/W9bVxBF?= =?us-ascii?Q?ZSMPZr4f3XoZhQ1P00yqyVQ856k0KlK+qTDh8FfrLcgEfEvOA1o7l8E7RUlV?= =?us-ascii?Q?rgDNRi4lSw54EgsQbjQd+opGTbZ1xLqBIqTqlKYqN8LK0OiaE3nBKNArspu1?= =?us-ascii?Q?mecgHL4zUIzWC7D/VRDB/jrNKrAsDa4G4mqv1C1jixTHHQbCatzCjKK4Pbrb?= =?us-ascii?Q?FYM2yvl56dHuTDnwjDIWpWuT5vg7i3HIIj1eWiZ06FIYGl5VeAaCb5S3MavU?= =?us-ascii?Q?BctP+B+UqNmy3blKuVvBrBWash6fwRXyLfElVAJZ07jeYRVnfgPSNRKmwhmb?= =?us-ascii?Q?OHlqZ3sXtp7WBRZr8pqV/qxGAnv88OgbiKgeyje6xPuxf2xKwH6AfUWT+PPk?= =?us-ascii?Q?oCs13EMp90KOUt+Xeqratc09KqItUV1QlKBrSp8eiwxl98JRLyQug4umlB5a?= =?us-ascii?Q?QufxMEra0OKBlIk/fMPE5609Xe48UR0p2FmBEA/kSN5w9ZkGgEXRlOec+GIV?= =?us-ascii?Q?ycB4Q88sjKHLL/vEnv0MuZVlu6iQ914Zc7wdGWVInfLXecAk59xBRr6sMLxb?= =?us-ascii?Q?NVqxW/TTe+KufpJgBlzSIsM3+ahJeJXhiPqvaykmixdfQCo8xdmYY3r+6MR+?= =?us-ascii?Q?RfNzlz2o+zGx3RrRRX7Ld707IiVditauWR3nt1ihS1N9OjcMVAR1Oy+rfJUs?= =?us-ascii?Q?BV8VRZhDIAzT545qUD40mj8/XUMimeEe53YW1Gh7NjCm8l+eUPnlE/nnp0jq?= =?us-ascii?Q?fCc5nedGTKUplVC9yx930D9ndBmyFm1NAijtbKwaod8ZLvNn5+7VUWC4tMUd?= =?us-ascii?Q?lDDfo8eCQL1ROa1Ua6OcGK26MkFS2pYj86EHiaVnR7Ur12WSDbqbxN5mCj7q?= =?us-ascii?Q?BrUl3ioz2TRNt6BrnS5UHZa/8Dv6?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230031)(82310400017)(1800799015)(376005)(36860700004)(7416005);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 Mon, Jun 03, 2024 at 09:15:47PM -0300, Jason Gunthorpe wrote: > Add arm_smmu_set_pasid()/arm_smmu_remove_pasid() which are to be used by > callers that already constructed the arm_smmu_cd they wish to program. > > These functions will encapsulate the shared logic to setup a CD entry that > will be shared by SVA and S1 domain cases. > > Prior fixes had already moved most of this logic up into > __arm_smmu_sva_bind(), move it to it's final home. > > Following patches will relieve some of the remaining SVA restrictions: > > - The RID domain is a S1 domain and has already setup the STE to point to > the CD table > - The programmed PASID is the mm_get_enqcmd_pasid() > - Nothing changes while SVA is running (sva_enable) > > SVA invalidation will still iterate over the S1 domain's master list, > later patches will resolve that. > > Tested-by: Nicolin Chen > Tested-by: Shameer Kolothum > 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