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-rw-r--r--include/linux/device.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 1b25c7a43f4c..6cb4640b6160 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1058,6 +1058,16 @@ static inline struct device *kobj_to_dev(struct kobject *kobj)
return container_of(kobj, struct device, kobj);
}
+/**
+ * device_iommu_mapped - Returns true when the device DMA is translated
+ * by an IOMMU
+ * @dev: Device to perform the check on
+ */
+static inline bool device_iommu_mapped(struct device *dev)
+{
+ return (dev->iommu_group != NULL);
+}
+
/* Get the wakeup routines, which depend on struct device */
#include <linux/pm_wakeup.h>