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| author | Sheng Yang <sheng@linux.intel.com> | 2009-03-18 15:33:06 +0800 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-03-24 09:42:51 +0000 |
| commit | dbb9fd8630e95b6155aff658a2b5f80e95ca2bc6 (patch) | |
| tree | b24caff50e1c5bfb428cb7422608bfef95d916e8 /drivers/base | |
| parent | 58c610bd1a3f50820e45a7c09ec0e44d2cda15dd (diff) | |
| download | linux-dbb9fd8630e95b6155aff658a2b5f80e95ca2bc6.tar.gz linux-dbb9fd8630e95b6155aff658a2b5f80e95ca2bc6.tar.bz2 linux-dbb9fd8630e95b6155aff658a2b5f80e95ca2bc6.zip | |
iommu: Add domain_has_cap iommu_ops
This iommu_op can tell if domain have a specific capability, like snooping
control for Intel IOMMU, which can be used by other components of kernel to
adjust the behaviour.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/iommu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c index 5e039d4f877c..c314f144825f 100644 --- a/drivers/base/iommu.c +++ b/drivers/base/iommu.c @@ -98,3 +98,10 @@ phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, return iommu_ops->iova_to_phys(domain, iova); } EXPORT_SYMBOL_GPL(iommu_iova_to_phys); + +int iommu_domain_has_cap(struct iommu_domain *domain, + unsigned long cap) +{ + return iommu_ops->domain_has_cap(domain, cap); +} +EXPORT_SYMBOL_GPL(iommu_domain_has_cap); |