On Wed, Apr 25, 2018 at 08:23:15AM +0200, Daniel Vetter wrote:
For more fun:
https://www.spinics.net/lists/dri-devel/msg173630.html
Yeah, sometimes we want to disable the iommu because the on-gpu pagetables are faster ...
I am not on this list, but remote NAK from here. This needs an API from the iommu/dma-mapping code. Drivers have no business poking into these details.
Thierry, please resend this with at least the iommu list and linux-arm-kernel in Cc to have a proper discussion on the right API.