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[2/2] iommu/tegra: gart: Provide default ->map_sg() callback

Message ID 1422027472-31467-3-git-send-email-thierry.reding@gmail.com
State Accepted, archived
Headers show

Commit Message

Thierry Reding Jan. 23, 2015, 3:37 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

Commit 315786ebbf4a ("iommu: Add iommu_map_sg() function") adds a new
->map_sg() callback and provides a default implementation that drivers
can use until they implement a hardware-specific variant. Unfortunately
the Tegra GART driver was not updated as part of that commit, so that
iommu_map_sg() calls on a domain provided by the GART cause an oops.

Fixes: 315786ebbf4a ("iommu: Add iommu_map_sg() function")
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/iommu/tegra-gart.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 10fc32dabb0a..c48da057dbb1 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -315,6 +315,7 @@  static const struct iommu_ops gart_iommu_ops = {
 	.attach_dev	= gart_iommu_attach_dev,
 	.detach_dev	= gart_iommu_detach_dev,
 	.map		= gart_iommu_map,
+	.map_sg		= default_iommu_map_sg,
 	.unmap		= gart_iommu_unmap,
 	.iova_to_phys	= gart_iommu_iova_to_phys,
 	.pgsize_bitmap	= GART_IOMMU_PGSIZES,