Hi Will,
> From: Will Deacon
> Sent: Wednesday, January 6, 2021 1:24 AM
>
> On Tue, Jan 05, 2021 at 05:50:22AM +, Liu, Yi L wrote:
> > > > +static void __iommu_flush_dev_iotlb(struct device_domain_info
> *info,
> > > > + u64 addr, unsigned int mask)
> > > >
On Tue, Jan 05, 2021 at 05:50:22AM +, Liu, Yi L wrote:
> > > +static void __iommu_flush_dev_iotlb(struct device_domain_info *info,
> > > + u64 addr, unsigned int mask)
> > > +{
> > > + u16 sid, qdep;
> > > +
> > > + if (!info || !info->ats_enabled)
> > > +
Hi Baolu,
> From: Lu Baolu
> Sent: Tuesday, December 29, 2020 4:42 PM
>
> Hi Yi,
>
> On 2020/12/29 11:25, Liu Yi L wrote:
> > iommu_flush_dev_iotlb() is called to invalidate caches on device. It only
> > loops the devices which are full-attached to the domain. For sub-devices,
> > this is
Hi Yi,
On 2020/12/29 11:25, Liu Yi L wrote:
iommu_flush_dev_iotlb() is called to invalidate caches on device. It only
loops the devices which are full-attached to the domain. For sub-devices,
this is ineffective. This results in invalid caching entries left on the
device. Fix it by adding loop
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