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iommu/fsl: Convert to device_group call-back 

Convert the fsl pamu driver to make use of the new
device_group call-back.

Cc: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2015-10-21 23:51:40 +02:00
parent a960fadbe6
commit d5e5829715
1 changed files with 16 additions and 25 deletions
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41
drivers/iommu/fsl_pamu_domain.c
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@ -923,7 +923,7 @@ static struct iommu_group *get_pci_device_group(struct pci_dev *pdev)
pci_endpt_partioning = check_pci_ctl_endpt_part(pci_ctl);
/* We can partition PCIe devices so assign device group to the device */
if (pci_endpt_partioning) {
group = iommu_group_get_for_dev(&pdev->dev);
group = pci_device_group(&pdev->dev);
/*
* PCIe controller is not a paritionable entity
@ -956,44 +956,34 @@ static struct iommu_group *get_pci_device_group(struct pci_dev *pdev)
return group;
}
static int fsl_pamu_add_device(struct device *dev)
static struct iommu_group *fsl_pamu_device_group(struct device *dev)
{
struct iommu_group *group = ERR_PTR(-ENODEV);
struct pci_dev *pdev;
const u32 *prop;
int ret = 0, len;
int len;
/*
* For platform devices we allocate a separate group for
* each of the devices.
*/
if (dev_is_pci(dev)) {
pdev = to_pci_dev(dev);
/* Don't create device groups for virtual PCI bridges */
if (pdev->subordinate)
return 0;
if (dev_is_pci(dev))
group = get_pci_device_group(to_pci_dev(dev));
else if (of_get_property(dev->of_node, "fsl,liodn", &len))
group = get_device_iommu_group(dev);
group = get_pci_device_group(pdev);
return group;
}
} else {
prop = of_get_property(dev->of_node, "fsl,liodn", &len);
if (prop)
group = get_device_iommu_group(dev);
}
static int fsl_pamu_add_device(struct device *dev)
{
struct iommu_group *group;
group = iommu_group_get_for_dev(dev);
if (IS_ERR(group))
return PTR_ERR(group);
/*
* Check if device has already been added to an iommu group.
* Group could have already been created for a PCI device in
* the iommu_group_get_for_dev path.
*/
if (!dev->iommu_group)
ret = iommu_group_add_device(group, dev);
iommu_group_put(group);
return ret;
return 0;
}
static void fsl_pamu_remove_device(struct device *dev)
@ -1072,6 +1062,7 @@ static const struct iommu_ops fsl_pamu_ops = {
.domain_get_attr = fsl_pamu_get_domain_attr,
.add_device = fsl_pamu_add_device,
.remove_device = fsl_pamu_remove_device,
.device_group = fsl_pamu_device_group,
};
int __init pamu_domain_init(void)