On Mon, Mar 29, 2021 at 09:02:50PM -0700, Rob Clark wrote: > 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.. Well it depends on what "doesn't have separate pagetables support yet" means. I can't tell if it's a hardware issue, a firmware issue or a driver issue. Will
