On 4/4/23 12:57 AM, Dave Jiang wrote:
On 4/2/23 10:49 PM, Baolu Lu wrote:
On 3/24/23 8:02 PM, Lu Baolu wrote:
The iommu subsystem requires IOMMU_DEV_FEAT_IOPF must be enabled before
and disabled after IOMMU_DEV_FEAT_SVA, if device's I/O page faults rely
on the IOMMU. Add explicit IOMMU_DEV_FEAT_IOPF enabling/disabling in
this
driver.
At present, missing IOPF enabling/disabling doesn't cause any real
issue,
because the IOMMU driver places the IOPF enabling/disabling in the path
of SVA feature handling. But this may change.
Reviewed-by: Dave Jiang<dave.jiang@xxxxxxxxx>
Reviewed-by: Fenghua Yu<fenghua.yu@xxxxxxxxx>
Reviewed-by: Kevin Tian<kevin.tian@xxxxxxxxx>
Signed-off-by: Lu Baolu<baolu.lu@xxxxxxxxxxxxxxx>
Hi Dave and Fenghua,
The following iommu patches depends on this one. Can I route it to
Linus through the iommu tree?
Hi Baolu, you'll need an ack from Vinod, who is the dmaengine subsystem
maintainer. I have no objections.
Hi Vinod,
Does this work work for you?
Best regards,
baolu
