Commit d7a8d04b authored Sep 12, 2016 by Robin Murphy Committed by Patrick Daly Feb 21, 2017

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.

Change-Id: I2934c601080ad0aade490531990b20e283a4ab6e
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>
Git-commit: 455eb7d3
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.4


Signed-off-by: Patrick Daly <pdaly@codeaurora.org>

parent 7e96c749

drivers/iommu/arm-smmu.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1635,6 +1635,8 @@ 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 = smmu_domain->pgtbl_cfg.pgsize_bitmap;
		domain->geometry.aperture_end = (1UL << ias) - 1;
		domain->geometry.force_aperture = true;

		/* Assign an asid */
		ret = arm_smmu_init_asid(domain, smmu);