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| author |   Joerg Roedel <jroedel@suse.de> | 2015-10-21 23:51:36 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-10-22 00:00:48 +0200 |
| commit | 46c6b2bc88a729366605d0dedb6a35b8cf7cc4f0 (patch) | |
| tree | 7584041357cf881e24998c49a14353cf32ed14d8 /drivers/iommu | |
| parent | arm64: Hook up IOMMU dma_ops (diff) | |
| download | linux-dev-46c6b2bc88a729366605d0dedb6a35b8cf7cc4f0.tar.xz linux-dev-46c6b2bc88a729366605d0dedb6a35b8cf7cc4f0.zip | |
iommu: Revive device_group iommu-ops call-back
That call-back is currently unused, change it into a
call-back function for finding the right IOMMU group for a
device.
This is a first step to remove the hard-coded PCI dependency
in the iommu-group code.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/iommu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 049df495c274..563746383973 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -814,6 +814,7 @@ static struct iommu_group *iommu_group_get_for_pci_dev(struct pci_dev *pdev) */ struct iommu_group *iommu_group_get_for_dev(struct device *dev) { + const struct iommu_ops *ops = dev->bus->iommu_ops; struct iommu_group *group; int ret; @@ -821,10 +822,12 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev) if (group) return group; - if (!dev_is_pci(dev)) - return ERR_PTR(-EINVAL); + group = ERR_PTR(-EINVAL); - group = iommu_group_get_for_pci_dev(to_pci_dev(dev)); + if (ops && ops->device_group) + group = ops->device_group(dev); + else if (dev_is_pci(dev)) + group = iommu_group_get_for_pci_dev(to_pci_dev(dev)); if (IS_ERR(group)) return group; |