Re: [PATCH v1 7/7] iommu/arm-smmu-v3: Move CD table to arm_smmu_master

[Jason Gunthorpe]

On Fri, Jul 28, 2023 at 02:26:23AM +0800, Michael Shavit wrote:
> Each master is now allocated a CD table at probe time,

Currently it is allocated during arm_smmu_domain_finalise_s1(), so it
isn't allocated at probe time.

I think the right place to put the allocation is during the attach op,
the first time we need a CD table then go and allocate it. If we can't
then domain attach fails with -ENOMEM.

Then you can put the free in a detach op once the CD table becomes
empty and it behaves much like it already does.

Jason