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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-07-17 15:12:00 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-07-26 10:19:27 -0300 |
| commit | 8d0e2e9d93d2b25b62c7fb6faf8c3cc31c6c6626 (patch) | |
| tree | 024e569729bc4109ef7ebc4571f229ceea28a151 /drivers/iommu/iommu.c | |
| parent | 91a2e17e243f70e0aec29facf44946439fce9195 (diff) | |
| download | lwn-8d0e2e9d93d2b25b62c7fb6faf8c3cc31c6c6626.tar.gz lwn-8d0e2e9d93d2b25b62c7fb6faf8c3cc31c6c6626.zip | |
iommu: Export iommu_get_resv_regions()
iommufd wants to use this in the next patch. For some reason the
iommu_put_resv_regions() was already exported.
Link: https://lore.kernel.org/r/4-v8-6659224517ea+532-iommufd_alloc_jgg@nvidia.com
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index caaf563d38ae..b0804fbad6f9 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2642,6 +2642,14 @@ int iommu_set_pgtable_quirks(struct iommu_domain *domain, } EXPORT_SYMBOL_GPL(iommu_set_pgtable_quirks); +/** + * iommu_get_resv_regions - get reserved regions + * @dev: device for which to get reserved regions + * @list: reserved region list for device + * + * This returns a list of reserved IOVA regions specific to this device. + * A domain user should not map IOVA in these ranges. + */ void iommu_get_resv_regions(struct device *dev, struct list_head *list) { const struct iommu_ops *ops = dev_iommu_ops(dev); @@ -2649,9 +2657,10 @@ void iommu_get_resv_regions(struct device *dev, struct list_head *list) if (ops->get_resv_regions) ops->get_resv_regions(dev, list); } +EXPORT_SYMBOL_GPL(iommu_get_resv_regions); /** - * iommu_put_resv_regions - release resered regions + * iommu_put_resv_regions - release reserved regions * @dev: device for which to free reserved regions * @list: reserved region list for device * |