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Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h19
1 files changed, 5 insertions, 14 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ae8eddd4621b..5e7fe519430a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -377,6 +377,7 @@ int iommu_device_sysfs_add(struct iommu_device *iommu,
void iommu_device_sysfs_remove(struct iommu_device *iommu);
int iommu_device_link(struct iommu_device *iommu, struct device *link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link);
+int iommu_deferred_attach(struct device *dev, struct iommu_domain *domain);
static inline void __iommu_device_set_ops(struct iommu_device *iommu,
const struct iommu_ops *ops)
@@ -515,7 +516,6 @@ extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
phys_addr_t offset, u64 size,
int prot);
-extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
unsigned long iova, int flags);
@@ -617,7 +617,10 @@ static inline void dev_iommu_fwspec_set(struct device *dev,
static inline void *dev_iommu_priv_get(struct device *dev)
{
- return dev->iommu->priv;
+ if (dev->iommu)
+ return dev->iommu->priv;
+ else
+ return NULL;
}
static inline void dev_iommu_priv_set(struct device *dev, void *priv)
@@ -628,7 +631,6 @@ static inline void dev_iommu_priv_set(struct device *dev, void *priv)
int iommu_probe_device(struct device *dev);
void iommu_release_device(struct device *dev);
-bool iommu_dev_has_feature(struct device *dev, enum iommu_dev_features f);
int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features f);
int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features f);
bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features f);
@@ -747,11 +749,6 @@ static inline int iommu_domain_window_enable(struct iommu_domain *domain,
return -ENODEV;
}
-static inline void iommu_domain_window_disable(struct iommu_domain *domain,
- u32 wnd_nr)
-{
-}
-
static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)
{
return 0;
@@ -983,12 +980,6 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
}
static inline bool
-iommu_dev_has_feature(struct device *dev, enum iommu_dev_features feat)
-{
- return false;
-}
-
-static inline bool
iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat)
{
return false;