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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6c6cf450-a99d-4e5f-b448-08dbb45f7bde X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Sep 2023 13:43:59.8356 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: iH2j4VZCo+zhOtYuMnikLDgh7jWLdCgxdfJ5wbWtZDpW52w5QwnuPdxQRWqKXYKH X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5096 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230913_064423_545705_DCF5B1C8 X-CRM114-Status: GOOD ( 11.43 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org All ARM64 iommu drivers should support IOMMU_DOMAIN_DMA to enable dma-iommu.c. tegra is blocking dma-iommu usage, and also default_domain's, because it wants an identity translation. This is needed for some device quirk. The correct way to do this is to support IDENTITY domains and use ops->def_domain_type() to return IOMMU_DOMAIN_IDENTITY for only the quirky devices. Add support for IOMMU_DOMAIN_DMA and force IOMMU_DOMAIN_IDENTITY mode for everything so no behavior changes. Reviewed-by: Jerry Snitselaar Signed-off-by: Jason Gunthorpe --- drivers/iommu/tegra-smmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 80481e1ba561b8..b91ad1b5a20d36 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -276,7 +276,7 @@ static struct iommu_domain *tegra_smmu_domain_alloc(unsigned type) { struct tegra_smmu_as *as; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; as = kzalloc(sizeof(*as), GFP_KERNEL);