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authorJoerg Roedel <jroedel@suse.de>2015-05-28 19:41:36 +0300
committerJoerg Roedel <jroedel@suse.de>2015-06-11 10:01:55 +0300
commitd290f1e70d85a9a4d124594c6a3d769329960bdc (patch)
tree56830081621c5c3681e7121967b7a69da46af360 /include/linux/iommu.h
parent6827ca83695d5e41ad31b0719788ee65f00ca4b3 (diff)
downloadlinux-d290f1e70d85a9a4d124594c6a3d769329960bdc.tar.xz
iommu: Introduce iommu_request_dm_for_dev()
This function can be called by an IOMMU driver to request that a device's default domain is direct mapped. Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index b944b2be4fa2..dc767f7c3704 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -225,6 +225,7 @@ extern void iommu_set_fault_handler(struct iommu_domain *domain,
extern void iommu_get_dm_regions(struct device *dev, struct list_head *list);
extern void iommu_put_dm_regions(struct device *dev, struct list_head *list);
+extern int iommu_request_dm_for_dev(struct device *dev);
extern int iommu_attach_group(struct iommu_domain *domain,
struct iommu_group *group);
@@ -411,6 +412,11 @@ static inline void iommu_put_dm_regions(struct device *dev,
{
}
+static inline int iommu_request_dm_for_dev(struct device *dev)
+{
+ return -ENODEV;
+}
+
static inline int iommu_attach_group(struct iommu_domain *domain,
struct iommu_group *group)
{