On 3/3/21 10:48 PM, Jean-Philippe Brucker wrote:

On Fri, Jan 15, 2021 at 05:43:35PM +0530, Vivek Gautam wrote:

quoted

aisd_bits data is required to prepare stage-1 tables for arm-smmu-v3.

Signed-off-by: Vivek Gautam <redacted>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <redacted>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Jean-Philippe Brucker <redacted>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Alex Williamson <redacted>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Jacob Pan <redacted>
Cc: Liu Yi L <redacted>
Cc: Lorenzo Pieralisi <redacted>
Cc: Shameerali Kolothum Thodi <redacted>
---
  include/uapi/linux/iommu.h | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h
index 082d758dd016..96abbfc7c643 100644
--- a/include/uapi/linux/iommu.h
+++ b/include/uapi/linux/iommu.h

@@ -357,7 +357,7 @@ struct iommu_pasid_smmuv3 {
  	__u32	version;
  	__u8	s1fmt;
  	__u8	s1dss;
-	__u8	padding[2];
+	__u16	asid_bits;

Is this used anywhere?  This struct is passed from host userspace to host
kernel to attach the PASID table, so I don't think it needs an asid_bits
field.

Yea, must have missed removing it from the WIP work. Will remove it.

Thanks
Vivek

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