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

Jacob Pan
2019-04-23T23:31:17Z

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@linux.intel.com>
---
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