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Commit 23349902 authored by Hiroshi DOYU's avatar Hiroshi DOYU Committed by Joerg Roedel
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iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute 



Implement the attribute for the Tegra IOMMU drivers.

Signed-off-by: default avatarHiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 4be6a290

drivers/iommu/tegra-gart.c

+5 −0
Original line number Diff line number Diff line
@@ -165,6 +165,11 @@ static int gart_iommu_attach_dev(struct iommu_domain *domain, 
		return -EINVAL;

	domain->priv = gart;



	domain->geometry.aperture_start = gart->iovmm_base;

	domain->geometry.aperture_end   = gart->iovmm_base +

					gart->page_count * GART_PAGE_SIZE - 1;

	domain->geometry.force_aperture = true;



	client = devm_kzalloc(gart->dev, sizeof(*c), GFP_KERNEL);

	if (!client)

		return -ENOMEM;

drivers/iommu/tegra-smmu.c

+5 −0
Original line number Diff line number Diff line
@@ -807,6 +807,11 @@ static int smmu_iommu_domain_init(struct iommu_domain *domain) 
	spin_unlock_irqrestore(&as->lock, flags);

	domain->priv = as;



	domain->geometry.aperture_start = smmu->iovmm_base;

	domain->geometry.aperture_end   = smmu->iovmm_base +

		smmu->page_count * SMMU_PAGE_SIZE - 1;

	domain->geometry.force_aperture = true;



	dev_dbg(smmu->dev, "smmu_as@%p\n", as);

	return 0;