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iommu/arm-smmu-v3: Make set_dev_pasid() op support replace

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set_dev_pasid() op is going to be enhanced to support domain replacement
of a pasid. This prepares for this op definition.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241107122234.7424-13-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jason Gunthorpe
2024-11-08 10:14:03 +08:00
committed by Joerg Roedel
parent 67f6f56b59
commit e9f1f727e6
3 changed files with 5 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
View File

@@ -349,7 +349,7 @@ static int arm_smmu_sva_set_dev_pasid(struct iommu_domain *domain,
* get reassigned
*/
arm_smmu_make_sva_cd(&target, master, domain->mm, smmu_domain->cd.asid);
ret = arm_smmu_set_pasid(master, smmu_domain, id, &target);
ret = arm_smmu_set_pasid(master, smmu_domain, id, &target, old);
mmput(domain->mm);
return ret;

9
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
View File

@@ -2883,7 +2883,7 @@ static int arm_smmu_s1_set_dev_pasid(struct iommu_domain *domain,
*/
arm_smmu_make_s1_cd(&target_cd, master, smmu_domain);
return arm_smmu_set_pasid(master, to_smmu_domain(domain), id,
&target_cd);
&target_cd, old);
}
static void arm_smmu_update_ste(struct arm_smmu_master *master,
@@ -2913,16 +2913,13 @@ static void arm_smmu_update_ste(struct arm_smmu_master *master,
int arm_smmu_set_pasid(struct arm_smmu_master *master,
struct arm_smmu_domain *smmu_domain, ioasid_t pasid,
struct arm_smmu_cd *cd)
struct arm_smmu_cd *cd, struct iommu_domain *old)
{
struct iommu_domain *sid_domain = iommu_get_domain_for_dev(master->dev);
struct arm_smmu_attach_state state = {
.master = master,
/*
* For now the core code prevents calling this when a domain is
* already attached, no need to set old_domain.
*/
.ssid = pasid,
.old_domain = old,
};
struct arm_smmu_cd *cdptr;
int ret;

2
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
View File

@@ -875,7 +875,7 @@ void arm_smmu_write_cd_entry(struct arm_smmu_master *master, int ssid,
int arm_smmu_set_pasid(struct arm_smmu_master *master,
struct arm_smmu_domain *smmu_domain, ioasid_t pasid,
struct arm_smmu_cd *cd);
struct arm_smmu_cd *cd, struct iommu_domain *old);
void arm_smmu_tlb_inv_asid(struct arm_smmu_device *smmu, u16 asid);
void arm_smmu_tlb_inv_range_asid(unsigned long iova, size_t size, int asid,