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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Oct 2025 23:58:41.8142 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 948ac02d-c715-4ae6-98b0-08de078fc620 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DE.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6151 Content-Type: text/plain; charset="utf-8" This will be reused in a new iommufd.c file for nested translation. Reviewed-by: Nicolin Chen Signed-off-by: Suravee Suthikulpanit --- drivers/iommu/amd/amd_iommu.h | 3 +++ drivers/iommu/amd/iommu.c | 11 ++++++----- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 079fb1d44c00..eb46e8914eaf 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -190,5 +190,8 @@ struct iommu_dev_data *search_dev_data(struct amd_iommu= *iommu, u16 devid); =20 /* DTE */ int amd_iommu_device_flush_dte(struct iommu_dev_data *dev_data); +void amd_iommu_update_dte256(struct amd_iommu *iommu, + struct iommu_dev_data *dev_data, + struct dev_table_entry *new); =20 #endif /* AMD_IOMMU_H */ diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index fad74d2bc1b1..3f2c61509b60 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -132,8 +132,9 @@ static void write_dte_lower128(struct dev_table_entry *= ptr, struct dev_table_ent * This function is used only by code, which updates DMA translation part = of the DTE. * So, only consider control bits related to DMA when updating the entry. */ -static void update_dte256(struct amd_iommu *iommu, struct iommu_dev_data *= dev_data, - struct dev_table_entry *new) +void amd_iommu_update_dte256(struct amd_iommu *iommu, + struct iommu_dev_data *dev_data, + struct dev_table_entry *new) { unsigned long flags; struct dev_table_entry *dev_table =3D get_dev_table(iommu); @@ -413,7 +414,7 @@ static int clone_alias(struct pci_dev *pdev, u16 alias,= void *data) ret =3D -EINVAL; goto out; } - update_dte256(iommu, alias_data, &new); + amd_iommu_update_dte256(iommu, alias_data, &new); =20 amd_iommu_set_rlookup_table(iommu, alias); out: @@ -2109,7 +2110,7 @@ static void set_dte_entry(struct amd_iommu *iommu, =20 set_dte_gcr3_table(iommu, dev_data, &new); =20 - update_dte256(iommu, dev_data, &new); + amd_iommu_update_dte256(iommu, dev_data, &new); =20 /* * A kdump kernel might be replacing a domain ID that was copied from @@ -2130,7 +2131,7 @@ static void clear_dte_entry(struct amd_iommu *iommu, = struct iommu_dev_data *dev_ struct dev_table_entry *dte =3D &get_dev_table(iommu)[dev_data->devid]; =20 make_clear_dte(dev_data, dte, &new); - update_dte256(iommu, dev_data, &new); + amd_iommu_update_dte256(iommu, dev_data, &new); } =20 /* Update and flush DTE for the given device */ --=20 2.34.1