27/05/2021 15:24, David Marchand:

On Fri, Dec 25, 2020 at 9:06 AM [off-list ref] wrote:

quoted

From: Amaranath Somalapuram <redacted>

CCP use vdev framework, and vdev framework don’t support IOMMU.
Adding custom IOMMU support for AMD CCP driver.

I am currently looking at pci bus patches/cleanups.
I ended up looking at crypto/ccp.
This driver code contains a lot of features duplicated with the pci bus.

Why is the ccp driver not a PCI driver?

Indeed it looks abusing vdev.
We should drop all the code duplicating the PCI bus driver.
If nothing else is done, it would mean breaking the probing
of this driver.

Adding more people in Cc list to have a fix before it is broken,
thanks.