3 Feb
2015
3 Feb
'15
9:44 p.m.
On Tuesday 03 February 2015 12:35:34 Rob Clark wrote:
I can't think of cases outside of GPU's.. if it were more common I'd be in favor of teaching dma api about multiple contexts, but right now I think that would just amount to forcing a lot of churn on everyone else for the benefit of GPU's.
We have a couple of users of the iommu API at the moment outside of GPUs:
* drivers/media/platform/omap3isp/isp.c * drivers/remoteproc/remoteproc_core.c * drivers/infiniband/hw/usnic/usnic_uiom.c * drivers/vfio/
I assume we will see a few more over time. The vfio case is the most important one here, since that is what the iommu API was designed for.
Arnd