[PATCH 2/5] iommu/arm-smmu: add IOMMU_CAP_BYPASS to the ARM SMMU driver

From: Anup Patel
Date: Wed Jul 19 2017 - 05:35:08 EST


The ARM SMMUv1 and SMMUv2 support bypassing transactions for
which domain is not configured. The patch adds corresponding
IOMMU capability to advertise this fact.

Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxxxx>
---
drivers/iommu/arm-smmu.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index bc89b4d..08a9020 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1483,6 +1483,8 @@ static bool arm_smmu_capable(enum iommu_cap cap)
return true;
case IOMMU_CAP_NOEXEC:
return true;
+ case IOMMU_CAP_BYPASS:
+ return true;
default:
return false;
}
--
2.7.4