Re: [PATCH v2 1/1] iommu/vt-d: Remove INTEL_IOMMU_BROKEN_GFX_WA

[Baolu Lu]

On 2024/1/30 14:24, Tian, Kevin wrote:
> > From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> > Sent: Tuesday, January 30, 2024 2:08 PM
> >
> > Commit 62edf5dc4a524 ("intel-iommu: Restore DMAR_BROKEN_GFX_WA
> > option for
> > broken graphics drivers") was introduced 24 years ago as a temporary
> > workaround for graphics drivers that used physical addresses for DMA and
> > avoided DMA APIs. This workaround was disabled by default.
> >
> > As 24 years have passed, it is expected that graphics driver developers
> > have migrated their drivers to use kernel DMA APIs. Therefore, this
> > workaround is no longer required and could been removed.
> >
> > The Intel iommu driver also provides a "igfx_off" option to turn off
> > the DAM translation for the graphic dedicated IOMMU. Hence, there is
> > really no good reason to keep this config option.
>
> s/DAM/DMA/

Fixed. :-)

Best regards,
baolu