diff options
| author | Joerg Roedel <jroedel@suse.de> | 2015-03-26 13:43:04 +0100 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:14:53 -0700 |
| commit | fd7eedeeebf2b958cc99cbf1be0825fc5b1c9001 (patch) | |
| tree | cbf14b4262a684ffc61ffb4eb8f1bfcc0ca4dece /include | |
| parent | 02041d42382b3bfaaf695823c710e2f8766c0fdc (diff) | |
iommu: Introduce domain_alloc and domain_free iommu_ops
These new call-backs defer the allocation and destruction of
'struct iommu_domain' to the iommu driver. This allows
drivers to embed this struct into their private domain
structures and to get rid of the domain_init and
domain_destroy call-backs when all drivers have been
converted.
Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iommu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 9b3509dddb16..4a3a375643f9 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -136,6 +136,11 @@ struct iommu_ops { bool (*capable)(enum iommu_cap); int (*domain_init)(struct iommu_domain *domain); void (*domain_destroy)(struct iommu_domain *domain); + + /* Domain allocation and freeing by the iommu driver */ + struct iommu_domain *(*domain_alloc)(void); + void (*domain_free)(struct iommu_domain *); + int (*attach_dev)(struct iommu_domain *domain, struct device *dev); void (*detach_dev)(struct iommu_domain *domain, struct device *dev); int (*map)(struct iommu_domain *domain, unsigned long iova, |