[PATCH v2 2/2] iommu: apple-dart: Support specifying the DMA aperture in the DT

[Sven Peter]

Hi,

On 8/31/26 15:46, Janne Grunau wrote:
> Apple DARTs are often connected directly to devices that expect only a
> portion of their address space to be used for DMA (for example, because
> other ranges are mapped directly to something else). Devices can specify
> the start and end of the aperture via "iommus" args if the DART device
> node specifies "#iommu-cells = <5>. Aperture start and length are 64-bit
> values as apertures above and larger than 4GB are used.
> Limit compile testing to 64-bit architectures to avoid warnings in the
> calculation of 64-bit dma_addr_t values.

I don't see any Kconfig hunk below, did you drop it by accident?
Otherwise:

Reviewed-by: Sven Peter <sven at kernel.org>


Sven