[RFC PATCH v6 02/20] iommu: add capability IOMMU_CAP_NOEXEC

[Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>]

Some IOMMUs accept an IOMMU_NOEXEC protection flag in addition to
IOMMU_READ and IOMMU_WRITE. Expose this as an IOMMU capability.

Signed-off-by: Antonios Motakis <a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org>
---
 include/linux/iommu.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index fc464d2..7e152fb 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -57,8 +57,9 @@ struct iommu_domain {
 	struct iommu_domain_geometry geometry;
 };
 
-#define IOMMU_CAP_CACHE_COHERENCY	0x1
-#define IOMMU_CAP_INTR_REMAP		0x2	/* isolates device intrs */
+#define IOMMU_CAP_CACHE_COHERENCY	(1 << 0)
+#define IOMMU_CAP_INTR_REMAP		(1 << 1) /* isolates device intrs */
+#define IOMMU_CAP_NOEXEC		(1 << 2) /* IOMMU_NOEXEC flag */
 
 /*
  * Following constraints are specifc to FSL_PAMUV1:
-- 
1.8.3.2