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| author |   Joerg Roedel <jroedel@suse.de> | 2015-03-26 13:43:05 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-03-31 15:31:49 +0200 |
| commit | 8539c7c16b970258e14761d8a1f7d10fe798031a (patch) | |
| tree | 816ddaba62328708e590be824176d17dabad6449 /drivers/iommu | |
| parent | iommu: Introduce domain_alloc and domain_free iommu_ops (diff) | |
| download | linux-dev-8539c7c16b970258e14761d8a1f7d10fe798031a.tar.xz linux-dev-8539c7c16b970258e14761d8a1f7d10fe798031a.zip | |
iommu: Introduce iommu domain types
This allows to handle domains differently based on their
type in the future. An IOMMU driver can implement certain
optimizations for DMA-API domains for example.
The domain types can be extended later and some of the
existing domain attributes can be migrated to become domain
flags.
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 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/iommu.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 11de2620bbf4..4920605892a3 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -909,14 +909,15 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) ops = bus->iommu_ops; if (ops->domain_alloc) - domain = ops->domain_alloc(); + domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED); else domain = kzalloc(sizeof(*domain), GFP_KERNEL); if (!domain) return NULL; - domain->ops = bus->iommu_ops; + domain->ops = bus->iommu_ops; + domain->type = IOMMU_DOMAIN_UNMANAGED; if (ops->domain_init && domain->ops->domain_init(domain)) goto out_free; |