Re: [PATCH] iommu/rockchip: implement .flush_iotlb_all

[Jiaxing Hu]

On Sat, 11 Jul 2026, Robin Murphy wrote:
> there's no harm in drivers implementing it *if* they also implement the
> relevant optimisations to avoid synchronous flushing in unmap_pages to
> make CAP_DEFERRED_FLUSH worthwhile.

Understood, thanks. I will drop the standalone patch. If I come back to
rk_iommu it will be the full version: move invalidation out of unmap_pages
into an iotlb_sync/gather path and advertise CAP_DEFERRED_FLUSH with
numbers, rather than flush_iotlb_all on its own.

Thanks,
Jiaxing