diff options
author | Jacob Pan <jacob.pan.linux@gmail.com> | 2020-09-25 09:32:45 -0700 |
---|---|---|
committer | Joerg Roedel <jroedel@suse.de> | 2020-10-01 14:52:46 +0200 |
commit | 23cc3493b5e107b8deb697cf3157a07276b5eff7 (patch) | |
tree | 190141930a9a5447479ecade78e6406456d70523 | |
parent | 8d3bb3b8cbf2ffb3ef73720a48b3445518dcdb55 (diff) |
iommu/uapi: Rename uapi functions
User APIs such as iommu_sva_unbind_gpasid() may also be used by the
kernel. Since we introduced user pointer to the UAPI functions,
in-kernel callers cannot share the same APIs. In-kernel callers are also
trusted, there is no need to validate the data.
We plan to have two flavors of the same API functions, one called
through ioctls, carrying a user pointer and one called directly with
valid IOMMU UAPI structs. To differentiate both, let's rename existing
functions with an iommu_uapi_ prefix.
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/1601051567-54787-5-git-send-email-jacob.jun.pan@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
-rw-r--r-- | drivers/iommu/iommu.c | 18 | ||||
-rw-r--r-- | include/linux/iommu.h | 31 |
2 files changed, 25 insertions, 24 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 6c14c88cd525..e412a0abfefa 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1961,35 +1961,35 @@ out_unlock: } EXPORT_SYMBOL_GPL(iommu_attach_device); -int iommu_cache_invalidate(struct iommu_domain *domain, struct device *dev, - struct iommu_cache_invalidate_info *inv_info) +int iommu_uapi_cache_invalidate(struct iommu_domain *domain, struct device *dev, + struct iommu_cache_invalidate_info *inv_info) { if (unlikely(!domain->ops->cache_invalidate)) return -ENODEV; return domain->ops->cache_invalidate(domain, dev, inv_info); } -EXPORT_SYMBOL_GPL(iommu_cache_invalidate); +EXPORT_SYMBOL_GPL(iommu_uapi_cache_invalidate); -int iommu_sva_bind_gpasid(struct iommu_domain *domain, - struct device *dev, struct iommu_gpasid_bind_data *data) +int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain, + struct device *dev, struct iommu_gpasid_bind_data *data) { if (unlikely(!domain->ops->sva_bind_gpasid)) return -ENODEV; return domain->ops->sva_bind_gpasid(domain, dev, data); } -EXPORT_SYMBOL_GPL(iommu_sva_bind_gpasid); +EXPORT_SYMBOL_GPL(iommu_uapi_sva_bind_gpasid); -int iommu_sva_unbind_gpasid(struct iommu_domain *domain, struct device *dev, - ioasid_t pasid) +int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain, struct device *dev, + ioasid_t pasid) { if (unlikely(!domain->ops->sva_unbind_gpasid)) return -ENODEV; return domain->ops->sva_unbind_gpasid(dev, pasid); } -EXPORT_SYMBOL_GPL(iommu_sva_unbind_gpasid); +EXPORT_SYMBOL_GPL(iommu_uapi_sva_unbind_gpasid); static void __iommu_detach_device(struct iommu_domain *domain, struct device *dev) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 2ad26d8b4ab9..d18de2afa6fb 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -424,13 +424,13 @@ extern int iommu_attach_device(struct iommu_domain *domain, struct device *dev); extern void iommu_detach_device(struct iommu_domain *domain, struct device *dev); -extern int iommu_cache_invalidate(struct iommu_domain *domain, - struct device *dev, - struct iommu_cache_invalidate_info *inv_info); -extern int iommu_sva_bind_gpasid(struct iommu_domain *domain, - struct device *dev, struct iommu_gpasid_bind_data *data); -extern int iommu_sva_unbind_gpasid(struct iommu_domain *domain, - struct device *dev, ioasid_t pasid); +extern int iommu_uapi_cache_invalidate(struct iommu_domain *domain, + struct device *dev, + struct iommu_cache_invalidate_info *inv_info); +extern int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain, + struct device *dev, struct iommu_gpasid_bind_data *data); +extern int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain, + struct device *dev, ioasid_t pasid); extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev); extern struct iommu_domain *iommu_get_dma_domain(struct device *dev); extern int iommu_map(struct iommu_domain *domain, unsigned long iova, @@ -1032,21 +1032,22 @@ static inline int iommu_sva_get_pasid(struct iommu_sva *handle) return IOMMU_PASID_INVALID; } -static inline int -iommu_cache_invalidate(struct iommu_domain *domain, - struct device *dev, - struct iommu_cache_invalidate_info *inv_info) +static inline int iommu_uapi_cache_invalidate(struct iommu_domain *domain, + struct device *dev, + struct iommu_cache_invalidate_info *inv_info) { return -ENODEV; } -static inline int iommu_sva_bind_gpasid(struct iommu_domain *domain, - struct device *dev, struct iommu_gpasid_bind_data *data) + +static inline int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain, + struct device *dev, + struct iommu_gpasid_bind_data *data) { return -ENODEV; } -static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain, - struct device *dev, int pasid) +static inline int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain, + struct device *dev, int pasid) { return -ENODEV; } |