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| author |   Robin Murphy <robin.murphy@arm.com> | 2016-09-12 17:13:58 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2016-09-16 09:34:22 +0100 |
| commit | 455eb7d34ad11b09490f70c33973f9f3e31c4df6 (patch) | |
| tree | e4c576989dc67dccd3bbfa60885ae8aa8db198e4 /drivers/iommu/arm-smmu.c | |
| parent | iommu/arm-smmu: Wire up generic configuration support (diff) | |
| download | linux-dev-455eb7d34ad11b09490f70c33973f9f3e31c4df6.tar.xz linux-dev-455eb7d34ad11b09490f70c33973f9f3e31c4df6.zip | |
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>
Diffstat (limited to 'drivers/iommu/arm-smmu.c')
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index fd6cc19c4ced..c841eb7a1a74 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -939,6 +939,8 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, /* Update the domain's page sizes to reflect the page table format */ domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap; + domain->geometry.aperture_end = (1UL << ias) - 1; + domain->geometry.force_aperture = true; /* Initialise the context bank with our page table cfg */ arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg); |