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| author | Liam Mark <lmark@codeaurora.org> | 2016-12-09 14:36:07 -0800 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-01-04 14:18:24 -0800 |
| commit | 90d80a06deede1b9d3e857bd26c15d2bc05850ca (patch) | |
| tree | 575452829c7c07a3cf9052d8e7bde47d4a16bdc1 /drivers/iommu | |
| parent | f18f48d761000ae252cfdc59a4c9eba68d58394b (diff) | |
iommu: support querying IOVA coherency
Support querying whether an IOVA is mapped as coherent.
Change-Id: Icd122348e309495b09bcf77628aa1746f0255305
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/iommu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 8ab502d80270..a77a45088b9d 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1336,6 +1336,13 @@ phys_addr_t iommu_iova_to_phys_hard(struct iommu_domain *domain, return domain->ops->iova_to_phys_hard(domain, iova); } +bool iommu_is_iova_coherent(struct iommu_domain *domain, dma_addr_t iova) +{ + if (unlikely(domain->ops->is_iova_coherent == NULL)) + return 0; + + return domain->ops->is_iova_coherent(domain, iova); +} static unsigned long iommu_get_pgsize_bitmap(struct iommu_domain *domain) { if (domain->ops->get_pgsize_bitmap) |