stuartl/linux-stable
1
0
Fork 0
mirror of https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable.git synced 2025-11-04 07:44:51 +10:00
Code Issues Releases Wiki Activity

iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute

Browse Source 
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>
This commit is contained in:
Hiroshi DOYU 2012-01-26 19:40:57 +01:00 committed by Joerg Roedel
parent 4be6a290b8
commit 23349902ed
2 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/iommu/tegra-gart.c
View File

@ -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;

5
drivers/iommu/tegra-smmu.c
View File

@ -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;