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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2025 01:44:03.3503 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 749a840c-7aa1-4e05-21ee-08de10435094 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: BN3PEPF0000B072.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4297 Content-Type: text/plain; charset="utf-8" This will be reused in a new iommufd.c file for nested translation. Reviewed-by: Jason Gunthorpe Reviewed-by: Nicolin Chen Signed-off-by: Suravee Suthikulpanit Reviewed-by: Vasant Hegde --- drivers/iommu/amd/amd_iommu.h | 1 + drivers/iommu/amd/iommu.c | 8 ++++---- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 9b4b589a54b5..6ea549816a1f 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -26,6 +26,7 @@ void amd_iommu_set_rlookup_table(struct amd_iommu *iommu,= u16 devid); void iommu_feature_enable(struct amd_iommu *iommu, u8 bit); void *__init iommu_alloc_4k_pages(struct amd_iommu *iommu, gfp_t gfp, size_t size); +int amd_iommu_pdom_id_alloc(void); =20 #ifdef CONFIG_AMD_IOMMU_DEBUGFS void amd_iommu_debugfs_setup(void); diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index a9b17d31a969..78b3e5485006 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1818,7 +1818,7 @@ int amd_iommu_complete_ppr(struct device *dev, u32 pa= sid, int status, int tag) * *************************************************************************= ***/ =20 -static int pdom_id_alloc(void) +int amd_iommu_pdom_id_alloc(void) { return ida_alloc_range(&pdom_ids, 1, MAX_DOMAIN_ID - 1, GFP_ATOMIC); } @@ -1906,7 +1906,7 @@ static int setup_gcr3_table(struct gcr3_tbl_info *gcr= 3_info, return -EBUSY; =20 /* Allocate per device domain ID */ - domid =3D pdom_id_alloc(); + domid =3D amd_iommu_pdom_id_alloc(); if (domid <=3D 0) return -ENOSPC; gcr3_info->domid =3D domid; @@ -2489,7 +2489,7 @@ struct protection_domain *protection_domain_alloc(voi= d) if (!domain) return NULL; =20 - domid =3D pdom_id_alloc(); + domid =3D amd_iommu_pdom_id_alloc(); if (domid <=3D 0) { kfree(domain); return NULL; @@ -2681,7 +2681,7 @@ void amd_iommu_init_identity_domain(void) domain->ops =3D &identity_domain_ops; domain->owner =3D &amd_iommu_ops; =20 - identity_domain.id =3D pdom_id_alloc(); + identity_domain.id =3D amd_iommu_pdom_id_alloc(); =20 protection_domain_init(&identity_domain); } --=20 2.34.1