From 8fbdce659549d93dfb257ec4eabacf63a188e506 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Fri, 21 Oct 2011 15:56:18 -0400 Subject: iommu/amd: Implement iommu_device_group Just use the amd_iommu_alias_table directly. Signed-off-by: Alex Williamson Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/iommu/amd_iommu.c') diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 4ee277a8521a..1d82b631d09c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2773,6 +2773,18 @@ static int amd_iommu_domain_has_cap(struct iommu_domain *domain, 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 = { .domain_init = amd_iommu_domain_init, .domain_destroy = amd_iommu_domain_destroy, @@ -2782,6 +2794,7 @@ static struct iommu_ops amd_iommu_ops = { .unmap = amd_iommu_unmap, .iova_to_phys = amd_iommu_iova_to_phys, .domain_has_cap = amd_iommu_domain_has_cap, + .device_group = amd_iommu_device_group, }; /***************************************************************************** -- cgit v1.2.3