158 	u64 pt_root = atomic64_read(&domain->pt_root);  in amd_iommu_domain_get_pgtable()  local
160 	pgtable->root = (u64 *)(pt_root & PAGE_MASK);  in amd_iommu_domain_get_pgtable()
161 	pgtable->mode = pt_root & 7; /* lowest 3 bits encode pgtable mode */  in amd_iommu_domain_get_pgtable()
166 	atomic64_set(&domain->pt_root, root);  in amd_iommu_domain_set_pt_root()
177 	u64 pt_root;  in amd_iommu_domain_set_pgtable()  local
180 	pt_root = mode & 7;  in amd_iommu_domain_set_pgtable()
181 	pt_root |= (u64)root;  in amd_iommu_domain_set_pgtable()
183 	amd_iommu_domain_set_pt_root(domain, pt_root);  in amd_iommu_domain_set_pgtable()
2430 	u64 *pt_root = NULL;  in protection_domain_init()  local
2441 		pt_root = (void *)get_zeroed_page(GFP_KERNEL);  in protection_domain_init()
2442 		if (!pt_root)  in protection_domain_init()
2446 	amd_iommu_domain_set_pgtable(domain, pt_root, mode);  in protection_domain_init()