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path: root/drivers/iommu/fsl_pamu_domain.c
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Diffstat (limited to 'drivers/iommu/fsl_pamu_domain.c')
-rw-r--r--drivers/iommu/fsl_pamu_domain.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index da0e1e30ef37..f089136e9c3f 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -33,6 +33,8 @@ static struct kmem_cache *fsl_pamu_domain_cache;
static struct kmem_cache *iommu_devinfo_cache;
static DEFINE_SPINLOCK(device_domain_lock);
+struct iommu_device pamu_iommu; /* IOMMU core code handle */
+
static struct fsl_dma_domain *to_fsl_dma_domain(struct iommu_domain *dom)
{
return container_of(dom, struct fsl_dma_domain, iommu_domain);
@@ -619,8 +621,8 @@ static int handle_attach_device(struct fsl_dma_domain *dma_domain,
for (i = 0; i < num; i++) {
/* Ensure that LIODN value is valid */
if (liodn[i] >= PAACE_NUMBER_ENTRIES) {
- pr_debug("Invalid liodn %d, attach device failed for %s\n",
- liodn[i], dev->of_node->full_name);
+ pr_debug("Invalid liodn %d, attach device failed for %pOF\n",
+ liodn[i], dev->of_node);
ret = -EINVAL;
break;
}
@@ -684,8 +686,7 @@ static int fsl_pamu_attach_device(struct iommu_domain *domain,
liodn_cnt = len / sizeof(u32);
ret = handle_attach_device(dma_domain, dev, liodn, liodn_cnt);
} else {
- pr_debug("missing fsl,liodn property at %s\n",
- dev->of_node->full_name);
+ pr_debug("missing fsl,liodn property at %pOF\n", dev->of_node);
ret = -EINVAL;
}
@@ -720,8 +721,7 @@ static void fsl_pamu_detach_device(struct iommu_domain *domain,
if (prop)
detach_device(dev, dma_domain);
else
- pr_debug("missing fsl,liodn property at %s\n",
- dev->of_node->full_name);
+ pr_debug("missing fsl,liodn property at %pOF\n", dev->of_node);
}
static int configure_domain_geometry(struct iommu_domain *domain, void *data)
@@ -983,11 +983,14 @@ static int fsl_pamu_add_device(struct device *dev)
iommu_group_put(group);
+ iommu_device_link(&pamu_iommu, dev);
+
return 0;
}
static void fsl_pamu_remove_device(struct device *dev)
{
+ iommu_device_unlink(&pamu_iommu, dev);
iommu_group_remove_device(dev);
}
@@ -1073,6 +1076,19 @@ int __init pamu_domain_init(void)
if (ret)
return ret;
+ ret = iommu_device_sysfs_add(&pamu_iommu, NULL, NULL, "iommu0");
+ if (ret)
+ return ret;
+
+ iommu_device_set_ops(&pamu_iommu, &fsl_pamu_ops);
+
+ ret = iommu_device_register(&pamu_iommu);
+ if (ret) {
+ iommu_device_sysfs_remove(&pamu_iommu);
+ pr_err("Can't register iommu device\n");
+ return ret;
+ }
+
bus_set_iommu(&platform_bus_type, &fsl_pamu_ops);
bus_set_iommu(&pci_bus_type, &fsl_pamu_ops);