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SubjectRe: [PATCH v2 2/6] iommu/ipmmu-vmsa: Prepare to handle 40-bit error addresses
On Wed, Apr 03, 2019 at 08:21:44PM +0200, Geert Uytterhoeven wrote:
> On R-Car Gen3, the faulting virtual address is a 40-bit address, and
> comprised of two registers. Read the upper address part, and combine
> both parts, when running on a 64-bit system.
> Signed-off-by: Geert Uytterhoeven <>
> ---
> Apart from this, the driver doesn't support 40-bit IOVA addresses yet.

None the less this seems like progress.

Reviewed-by: Simon Horman <>

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