diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2012-01-26 19:40:52 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-07-11 12:12:14 +0200 |
| commit | 0cd76dd13bdd2f7f02a2dc931e808e92b191082f (patch) | |
| tree | 210df4b7fda8f81121fd8fb1f89a57e3e358060e /drivers/iommu | |
| parent | bd0a521e88aa7a06ae7aabaed7ae196ed4ad867a (diff) | |
iommu: Add domain-attribute handlers
This patch introduces an extension to the iommu-api to get
and set attributes for an iommu_domain. Two functions are
introduced for this:
* iommu_domain_get_attr()
* iommu_domain_set_attr()
These functions will be used to make the iommu-api suitable
for GART-like IOMMUs and to implement hardware-specifc
api-extensions.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/iommu.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 8b9ded88e6f..c39972d8ded 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -344,3 +344,23 @@ int iommu_device_group(struct device *dev, unsigned int *groupid) return -ENODEV; } EXPORT_SYMBOL_GPL(iommu_device_group); + +int iommu_domain_get_attr(struct iommu_domain *domain, + enum iommu_attr attr, void *data) +{ + if (!domain->ops->domain_get_attr) + return -EINVAL; + + return domain->ops->domain_get_attr(domain, attr, data); +} +EXPORT_SYMBOL_GPL(iommu_domain_get_attr); + +int iommu_domain_set_attr(struct iommu_domain *domain, + enum iommu_attr attr, void *data) +{ + if (!domain->ops->domain_set_attr) + return -EINVAL; + + return domain->ops->domain_set_attr(domain, attr, data); +} +EXPORT_SYMBOL_GPL(iommu_domain_set_attr); |