[PATCH v2 17/19] iommu: Add max num of cache and granu types

[Jacob Pan]

To convert to/from cache types and granularities between generic and
VT-d specific counterparts, a 2D arrary is used. Introduce the limits
to help define the converstion array size.

Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
---
 include/uapi/linux/iommu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h
index 5c95905..2d8fac8 100644
--- a/include/uapi/linux/iommu.h
+++ b/include/uapi/linux/iommu.h
@@ -197,6 +197,7 @@ struct iommu_inv_addr_info {
 	__u64	granule_size;
 	__u64	nb_granules;
 };
+#define NR_IOMMU_CACHE_INVAL_GRANU	(3)
 
 /**
  * First level/stage invalidation information
@@ -235,6 +236,7 @@ struct iommu_cache_invalidate_info {
 		struct iommu_inv_addr_info addr_info;
 	};
 };
+#define NR_IOMMU_CACHE_TYPE		(3)
 /**
  * struct gpasid_bind_data - Information about device and guest PASID binding
  * @gcr3:	Guest CR3 value from guest mm
-- 
2.7.4