iommu-api: Add ->{un}map callbacks to iommu_ops

This patch adds new callbacks for mapping and unmapping
pages to the iommu_ops structure. These callbacks are aware
of page sizes which makes them different to the
->{un}map_range callbacks.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c
index cf7cbec116e..55d37e4609e 100644
--- a/drivers/base/iommu.c
+++ b/drivers/base/iommu.c
@@ -119,6 +119,9 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
 
 	BUG_ON((iova | paddr) & invalid_mask);
 
+	if (iommu_ops->map)
+		return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
+
 	return iommu_ops->map_range(domain, iova, paddr, size, prot);
 }
 EXPORT_SYMBOL_GPL(iommu_map);
@@ -133,6 +136,9 @@ int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
 
 	BUG_ON(iova & invalid_mask);
 
+	if (iommu_ops->unmap)
+		return iommu_ops->unmap(domain, iova, gfp_order);
+
 	iommu_ops->unmap_range(domain, iova, size);
 
 	return gfp_order;