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authorHiroshi DOYU <hdoyu@nvidia.com>2012-01-26 19:40:57 +0100
committerJoerg Roedel <joerg.roedel@amd.com>2012-07-11 12:25:57 +0200
commit23349902edec4d3d932bca1bb99261477139a36a (patch)
tree96eb09c80fd527125d8dd10f31a5c22f1966e57a /drivers/iommu
parent4be6a290b87af9136b482d5c22574f070ffdbdb8 (diff)
downloadlinux-23349902edec4d3d932bca1bb99261477139a36a.tar.bz2
iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute
Implement the attribute for the Tegra IOMMU drivers. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/tegra-gart.c5
-rw-r--r--drivers/iommu/tegra-smmu.c5
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 0c0a37792218..c16e8fc8a4bd 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -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;
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index ecd679043d77..96e73d56451a 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -807,6 +807,11 @@ found:
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;