Re: [RFC PATCH 00/11] : media: iris: Migrate iommus to iris sub nodes

[Bryan O'Donoghue]

On 10/07/2026 14:36, Vikash Garodia wrote:
> > What's the addressable range with sub-nodes ?
> >
> > The original problem you were trying to solve was the total addressable
> > size - this other problem here segmenting the linear allocation space is
> > adjacent but not the same thing.
> >
> > Without digging through all of the patches here - my question is does
> > the original sub-node addressable space problem get resolved in your
> > proposal here ?
> The proposal solves both the problem we have so far - total addressable
> size as well as which segment (or range) in that is_not_ addressable.

So if I can distill this.

You're proposing two objects in the DT one for each relevant IOMMU SID 
and then the driver will register two different devices to get the full 
range addresses ?

---
bod