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| author | Joerg Roedel <jroedel@suse.de> | 2015-03-26 13:43:04 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-03-31 15:31:23 +0200 |
| commit | 938c470976192590b4adc921b2e10fa31237eddc (patch) | |
| tree | 783d60eb23be6d6e0ec88c95c5eb32b5fdf81ad4 /include/linux/iommu.h | |
| parent | e42391cd048809d903291d07f86ed3934ce138e9 (diff) | |
| download | op-kernel-dev-938c470976192590b4adc921b2e10fa31237eddc.zip op-kernel-dev-938c470976192590b4adc921b2e10fa31237eddc.tar.gz | |
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/linux/iommu.h')
| -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 38daa45..69d1d12 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -115,6 +115,11 @@ 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, |
