On Tue, Jan 19, 2021 at 12:27:59PM +0000, Jonathan Cameron wrote:

On Fri, 8 Jan 2021 15:52:13 +0100
Jean-Philippe Brucker [off-list ref] wrote:

quoted

The IOPF (I/O Page Fault) feature is now enabled independently from the
SVA feature, because some IOPF implementations are device-specific and
do not require IOMMU support for PCIe PRI or Arm SMMU stall.

Enable IOPF unconditionally when enabling SVA for now. In the future, if
a device driver implementing a uacce interface doesn't need IOPF
support, it will need to tell the uacce module, for example with a new
flag.

Signed-off-by: Jean-Philippe Brucker <redacted>

Hi Jean-Philippe,

A minor suggestion inline but I'm not that bothered so either way
looks good to me.

No problem, I'll add the disable function

Thanks,
Jean

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