[PATCH v2 14/15] dma-iommu: Add iommu_dma_set_opt_size()

From: John Garry
Date: Mon May 10 2021 - 10:29:15 EST


Add iommu_dma_set_opt_size(), which is a frontend for
iommu_set_dev_dma_opt_size().

Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/iommu/dma-iommu.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 1d58c7a2d85d..fd62afe7c7d0 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -490,6 +490,11 @@ static dma_addr_t iommu_dma_alloc_iova(struct iommu_domain *domain,
return (dma_addr_t)iova << shift;
}

+static int iommu_dma_set_opt_size(struct device *dev, size_t size)
+{
+ return iommu_set_dev_dma_opt_size(dev, size);
+}
+
static void iommu_dma_free_iova(struct iommu_dma_cookie *cookie,
dma_addr_t iova, size_t size, struct page *freelist)
{
@@ -1340,6 +1345,7 @@ static const struct dma_map_ops iommu_dma_ops = {
.map_resource = iommu_dma_map_resource,
.unmap_resource = iommu_dma_unmap_resource,
.get_merge_boundary = iommu_dma_get_merge_boundary,
+ .set_max_opt_size = iommu_dma_set_opt_size,
};

/*
--
2.26.2