Re: [PATCH 1/2] iommu/arm-smmu-qcom: Skip the TTBR1 quirk for db820c.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Mar 29, 2021 at 7:47 AM Will Deacon <will@xxxxxxxxxx> wrote:
>
> On Fri, Mar 26, 2021 at 04:13:02PM -0700, Eric Anholt wrote:
> > db820c wants to use the qcom smmu path to get HUPCF set (which keeps
> > the GPU from wedging and then sometimes wedging the kernel after a
> > page fault), but it doesn't have separate pagetables support yet in
> > drm/msm so we can't go all the way to the TTBR1 path.
>
> What do you mean by "doesn't have separate pagetables support yet"? The
> compatible string doesn't feel like the right way to determine this.

the compatible string identifies what it is, not what the sw
limitations are, so in that regard it seems right to me..

BR,
-R



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux