On Thu, Aug 15, 2024 at 04:51:39PM -0700, Nicolin Chen wrote:
> On Thu, Aug 15, 2024 at 08:24:05PM -0300, Jason Gunthorpe wrote:
> > On Wed, Aug 07, 2024 at 01:10:49PM -0700, Nicolin Chen wrote:
> > > @@ -946,4 +947,40 @@ struct iommu_viommu_unset_vdev_id {
> > > __aligned_u64 vdev_id;
> > > };
> > > #define IOMMU_VIOMMU_UNSET_VDEV_ID _IO(IOMMUFD_TYPE, IOMMUFD_CMD_VIOMMU_UNSET_VDEV_ID)
> > > +
> > > +/**
> > > + * enum iommu_viommu_invalidate_data_type - VIOMMU Cache Invalidate Data Type
> > > + * @IOMMU_VIOMMU_INVALIDATE_DATA_ARM_SMMUV3: Invalidation data for ARM SMMUv3
> > > + */
> > > +enum iommu_viommu_invalidate_data_type {
> > > + IOMMU_VIOMMU_INVALIDATE_DATA_ARM_SMMUV3,
> > > +};
> >
> > =1 here I think. Lets try to avoid 0 for the types..
> >
> > And this shouldn't be in this patch
> >
> > But also we can probably just use reuse enum iommu_hwpt_invalidate_data_type
> > here?
>
> Would that force IOMMU drivers to implement both hwpt and viommu
> invalidations? SMMUv3 driver would implement both anyway though..
I wouldn't say force, just that they have to use a consistent
numbering if they do choose to do both.
Jason
