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iommu/arm-smmu: Set domain geometry
For non-aperture-based IOMMUs, the domain geometry seems to have become the de-facto way of indicating the input address space size. That is quite a useful thing from the users' perspective, so let's do the same. Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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2 changed files with 4 additions and 0 deletions
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@ -1551,6 +1551,8 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain)
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return -ENOMEM;
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domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
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domain->geometry.aperture_end = (1UL << ias) - 1;
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domain->geometry.force_aperture = true;
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smmu_domain->pgtbl_ops = pgtbl_ops;
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ret = finalise_stage_fn(smmu_domain, &pgtbl_cfg);
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@ -939,6 +939,8 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
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/* Update the domain's page sizes to reflect the page table format */
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domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
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domain->geometry.aperture_end = (1UL << ias) - 1;
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domain->geometry.force_aperture = true;
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/* Initialise the context bank with our page table cfg */
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arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg);
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