Messages in this thread | | | Date | Mon, 3 Apr 2023 09:57:33 -0700 | Subject | Re: [PATCH v3 1/6] dmaengine: idxd: Add enable/disable device IOPF feature | From | Dave Jiang <> |
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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@intel.com> >> Reviewed-by: Fenghua Yu<fenghua.yu@intel.com> >> Reviewed-by: Kevin Tian<kevin.tian@intel.com> >> Signed-off-by: Lu Baolu<baolu.lu@linux.intel.com> > > 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.
> > Best regards, > baolu
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