[PATCH v2 05/11] iommu/arm-smmu-v3: Rename arm_smmu_attach_prepare_vmaster

From: Nicolin Chen
Date: Tue Apr 15 2025 - 00:59:45 EST


There is a need of stuffing more vsmmu-related routine into the prepare().

Given that the arm_smmu_attach_prepare_vmaster() is always called when the
domain is a nested domain that always has a valid vsmmu pointer. Rename it
to arm_vsmmu_attach_prepare().

Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 9 ++++-----
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 8 ++++----
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 5 +++--
3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
index 2f8928971716..7b47f4408a7a 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
@@ -1089,8 +1089,8 @@ struct iommufd_viommu *arm_vsmmu_alloc(struct device *dev,
struct iommu_domain *parent,
struct iommufd_ctx *ictx,
unsigned int viommu_type);
-int arm_smmu_attach_prepare_vmaster(struct arm_smmu_attach_state *state,
- struct arm_smmu_nested_domain *nested_domain);
+int arm_vsmmu_attach_prepare(struct arm_smmu_attach_state *state,
+ struct arm_vsmmu *vsmmu);
void arm_smmu_attach_commit_vmaster(struct arm_smmu_attach_state *state);
void arm_smmu_master_clear_vmaster(struct arm_smmu_master *master);
int arm_vmaster_report_event(struct arm_smmu_vmaster *vmaster, u64 *evt);
@@ -1098,9 +1098,8 @@ int arm_vmaster_report_event(struct arm_smmu_vmaster *vmaster, u64 *evt);
#define arm_smmu_hw_info NULL
#define arm_vsmmu_alloc NULL

-static inline int
-arm_smmu_attach_prepare_vmaster(struct arm_smmu_attach_state *state,
- struct arm_smmu_nested_domain *nested_domain)
+static inline int arm_vsmmu_attach_prepare(struct arm_smmu_attach_state *state,
+ struct arm_vsmmu *vsmmu)
{
return 0;
}
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
index d86dba6691e8..6cd01536c966 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
@@ -89,8 +89,8 @@ static void arm_smmu_make_nested_domain_ste(
}
}

-int arm_smmu_attach_prepare_vmaster(struct arm_smmu_attach_state *state,
- struct arm_smmu_nested_domain *nested_domain)
+int arm_vsmmu_attach_prepare(struct arm_smmu_attach_state *state,
+ struct arm_vsmmu *vsmmu)
{
struct arm_smmu_vmaster *vmaster;
unsigned long vsid;
@@ -98,7 +98,7 @@ int arm_smmu_attach_prepare_vmaster(struct arm_smmu_attach_state *state,

iommu_group_mutex_assert(state->master->dev);

- ret = iommufd_viommu_get_vdev_id(&nested_domain->vsmmu->core,
+ ret = iommufd_viommu_get_vdev_id(&vsmmu->core,
state->master->dev, &vsid);
if (ret)
return ret;
@@ -106,7 +106,7 @@ int arm_smmu_attach_prepare_vmaster(struct arm_smmu_attach_state *state,
vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
if (!vmaster)
return -ENOMEM;
- vmaster->vsmmu = nested_domain->vsmmu;
+ vmaster->vsmmu = vsmmu;
vmaster->vsid = vsid;
state->vmaster = vmaster;

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index bafe7c7c2769..07d435562da2 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2839,8 +2839,9 @@ int arm_smmu_attach_prepare(struct arm_smmu_attach_state *state,

if (smmu_domain) {
if (new_domain->type == IOMMU_DOMAIN_NESTED) {
- ret = arm_smmu_attach_prepare_vmaster(
- state, to_smmu_nested_domain(new_domain));
+ ret = arm_vsmmu_attach_prepare(
+ state,
+ to_smmu_nested_domain(new_domain)->vsmmu);
if (ret)
return ret;
}
--
2.43.0