[PATCH 1/9] iommu/arm-smmu-v3: Add struct arm_smmu_cmd to represent the HW format command

[Samiullah Khawaja]

On Fri, May 01, 2026 at 11:29:10AM -0300, Jason Gunthorpe wrote:
>Like STE/CD, add a wrapper struct around the u64 array to represent the
>already FIELD_PREP'd command data. Unlike the STE/CD this is a u64
>because the command submission path will have the swap to le64.
>
>This makes the API clearer when a u64 is referring to a formatted
>command and makes the following changes easier to follow.
>
>Move the command constants out of the struct and into an enum alongside
>the rest of the constants defining the HW format so the entire HW format
>is self contained and independent of struct arm_smmu_cmdq_ent.
>
>Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
>---
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 48 ++++++++++++---------
> 1 file changed, 28 insertions(+), 20 deletions(-)
>

Reviewed-by: Samiullah Khawaja <skhawaja at google.com>