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-rw-r--r--include/linux/iommu.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index c88d18d2c928..4ad9b9ec6c9b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -991,6 +991,8 @@ struct iommu_fwspec {
/* ATS is supported */
#define IOMMU_FWSPEC_PCI_RC_ATS (1 << 0)
+/* CANWBS is supported */
+#define IOMMU_FWSPEC_PCI_RC_CANWBS (1 << 1)
/*
* An iommu attach handle represents a relationship between an iommu domain