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| author |   Joerg Roedel <jroedel@suse.de> | 2020-04-29 15:36:51 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-05-05 14:36:13 +0200 |
| commit | 5012c3968537e2ffecbdb2eba3479bf9fb9e5597 (patch) | |
| tree | 6151549496e466e68bed8a68f3e59ccc7587cad1 /include/linux/iommu.h | |
| parent | iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() (diff) | |
| download | wireguard-linux-5012c3968537e2ffecbdb2eba3479bf9fb9e5597.tar.xz wireguard-linux-5012c3968537e2ffecbdb2eba3479bf9fb9e5597.zip | |
iommu: Export bus_iommu_probe() and make is safe for re-probing
Add a check to the bus_iommu_probe() call-path to make sure it ignores
devices which have already been successfully probed. Then export the
bus_iommu_probe() function so it can be used by IOMMU drivers.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200429133712.31431-14-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 30170d191e5e..fea1622408ad 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -445,6 +445,7 @@ static inline void iommu_iotlb_gather_init(struct iommu_iotlb_gather *gather) #define IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER 6 /* Post Driver unbind */ extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops); +extern int bus_iommu_probe(struct bus_type *bus); extern bool iommu_present(struct bus_type *bus); extern bool iommu_capable(struct bus_type *bus, enum iommu_cap cap); extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus); |