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Mon, 4 Dec 2023 17:45:28 -0800 Date: Mon, 4 Dec 2023 17:45:25 -0800 From: Nicolin Chen To: Jason Gunthorpe CC: , Joerg Roedel , , Robin Murphy , Will Deacon , Michael Shavit , Shameerali Kolothum Thodi Subject: Re: [PATCH v2 06/19] iommu/arm-smmu-v3: Move arm_smmu_rmr_install_bypass_ste() Message-ID: References: <0-v2-de8b10590bf5+400-smmuv3_newapi_p1_jgg@nvidia.com> <6-v2-de8b10590bf5+400-smmuv3_newapi_p1_jgg@nvidia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <6-v2-de8b10590bf5+400-smmuv3_newapi_p1_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F1:EE_|CH3PR12MB8401:EE_ X-MS-Office365-Filtering-Correlation-Id: ae76b4ae-af12-47c4-8fd7-08dbf533e62e 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:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(136003)(396003)(346002)(376002)(39860400002)(230922051799003)(1800799012)(451199024)(186009)(82310400011)(64100799003)(40470700004)(46966006)(36840700001)(40460700003)(426003)(83380400001)(478600001)(9686003)(26005)(336012)(6666004)(316002)(7636003)(54906003)(6636002)(70586007)(70206006)(55016003)(86362001)(41300700001)(8676002)(6862004)(4326008)(8936002)(36860700001)(40480700001)(4744005)(2906002)(5660300002)(82740400003)(356005)(47076005)(33716001);DIR:OUT;SFP:1101; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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, Nov 13, 2023 at 01:53:13PM -0400, Jason Gunthorpe wrote: > Logically arm_smmu_init_strtab_linear() is the function that allocates and > populates the stream table with the initial value of the STEs. After this > function returns the stream table should be fully ready. > > arm_smmu_rmr_install_bypass_ste() adjusts the initial stream table to force > any SIDs that the FW says have IOMMU_RESV_DIRECT to use bypass. This > ensures there is no disruption to the identity mapping during boot. > > Put arm_smmu_rmr_install_bypass_ste() into arm_smmu_init_strtab_linear(), > it already executes immediately after arm_smmu_init_strtab_linear(). > > No functional change intended. > > 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