Re: [PATCH v2 2/6] iommu/ipmmu-vmsa: Prepare to handle 40-bit error addresses
From: Simon Horman
Date: Thu Apr 11 2019 - 04:23:47 EST
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 <geert+renesas@xxxxxxxxx>
> Apart from this, the driver doesn't support 40-bit IOVA addresses yet.
None the less this seems like progress.
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>