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-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 e552c3b63f6f..86b4e0a75a97 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -29,6 +29,12 @@
* if the IOMMU page table format is equivalent.
*/
#define IOMMU_PRIV (1 << 5)
+/*
+ * Non-coherent masters on few Qualcomm SoCs can use this page protection flag
+ * to set correct cacheability attributes to use an outer level of cache -
+ * last level cache, aka system cache.
+ */
+#define IOMMU_QCOM_SYS_CACHE (1 << 6)
struct iommu_ops;
struct iommu_group;