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iommu/amd: Implement iommu_device_group 

Just use the amd_iommu_alias_table directly.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Alex Williamson 2011-10-21 15:56:18 -04:00 committed by Joerg Roedel
parent 70ae6f0d55
commit 8fbdce6595
1 changed files with 13 additions and 0 deletions
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13
drivers/iommu/amd_iommu.c
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@ -2773,6 +2773,18 @@ static int amd_iommu_domain_has_cap(struct iommu_domain *domain,
return 0; return 0;
} }
static int amd_iommu_device_group(struct device *dev, unsigned int *groupid)
{
struct iommu_dev_data *dev_data = dev->archdata.iommu;
if (!dev_data)
return -ENODEV;
*groupid = amd_iommu_alias_table[dev_data->devid];
return 0;
}
static struct iommu_ops amd_iommu_ops = { static struct iommu_ops amd_iommu_ops = {
.domain_init = amd_iommu_domain_init, .domain_init = amd_iommu_domain_init,
.domain_destroy = amd_iommu_domain_destroy, .domain_destroy = amd_iommu_domain_destroy,
@ -2782,6 +2794,7 @@ static struct iommu_ops amd_iommu_ops = {
.unmap = amd_iommu_unmap, .unmap = amd_iommu_unmap,
.iova_to_phys = amd_iommu_iova_to_phys, .iova_to_phys = amd_iommu_iova_to_phys,
.domain_has_cap = amd_iommu_domain_has_cap, .domain_has_cap = amd_iommu_domain_has_cap,
.device_group = amd_iommu_device_group,
}; };
/***************************************************************************** /*****************************************************************************