diff options
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 6595454d4f48..e8c9a7da1060 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -13,7 +13,6 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/of.h> -#include <linux/ioasid.h> #include <uapi/linux/iommu.h> #define IOMMU_READ (1 << 0) @@ -192,6 +191,7 @@ enum iommu_dev_features { }; #define IOMMU_PASID_INVALID (-1U) +typedef unsigned int ioasid_t; #ifdef CONFIG_IOMMU_API @@ -455,12 +455,11 @@ static inline const struct iommu_ops *dev_iommu_ops(struct device *dev) return dev->iommu->iommu_dev->ops; } -extern int bus_iommu_probe(struct bus_type *bus); -extern bool iommu_present(struct bus_type *bus); +extern int bus_iommu_probe(const struct bus_type *bus); +extern bool iommu_present(const struct bus_type *bus); extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap); extern bool iommu_group_has_isolated_msi(struct iommu_group *group); -extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus); -extern struct iommu_group *iommu_group_get_by_id(int id); +extern struct iommu_domain *iommu_domain_alloc(const struct bus_type *bus); extern void iommu_domain_free(struct iommu_domain *domain); extern int iommu_attach_device(struct iommu_domain *domain, struct device *dev); @@ -699,7 +698,6 @@ 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); 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); @@ -732,7 +730,7 @@ struct iommu_device {}; struct iommu_fault_param {}; struct iommu_iotlb_gather {}; -static inline bool iommu_present(struct bus_type *bus) +static inline bool iommu_present(const struct bus_type *bus) { return false; } @@ -742,12 +740,7 @@ static inline bool device_iommu_capable(struct device *dev, enum iommu_cap cap) return false; } -static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) -{ - return NULL; -} - -static inline struct iommu_group *iommu_group_get_by_id(int id) +static inline struct iommu_domain *iommu_domain_alloc(const struct bus_type *bus) { return NULL; } @@ -1173,6 +1166,15 @@ static inline bool tegra_dev_iommu_get_stream_id(struct device *dev, u32 *stream } #ifdef CONFIG_IOMMU_SVA +static inline void mm_pasid_init(struct mm_struct *mm) +{ + mm->pasid = IOMMU_PASID_INVALID; +} +static inline bool mm_valid_pasid(struct mm_struct *mm) +{ + return mm->pasid != IOMMU_PASID_INVALID; +} +void mm_pasid_drop(struct mm_struct *mm); struct iommu_sva *iommu_sva_bind_device(struct device *dev, struct mm_struct *mm); void iommu_sva_unbind_device(struct iommu_sva *handle); @@ -1192,6 +1194,9 @@ static inline u32 iommu_sva_get_pasid(struct iommu_sva *handle) { return IOMMU_PASID_INVALID; } +static inline void mm_pasid_init(struct mm_struct *mm) {} +static inline bool mm_valid_pasid(struct mm_struct *mm) { return false; } +static inline void mm_pasid_drop(struct mm_struct *mm) {} #endif /* CONFIG_IOMMU_SVA */ #endif /* __LINUX_IOMMU_H */ |