On Mon, Jan 6, 2025 at 12:11 PM Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx> wrote: > > On 1/3/2025 1:00 AM, Akhil P Oommen wrote: > > On 1/3/2025 12:02 AM, Rob Clark wrote: > >> From: Rob Clark <robdclark@xxxxxxxxxxxx> > >> > >> On mmu-500, stall-on-fault seems to stall all context banks, causing the > >> GMU to misbehave. So limit this feature to smmu-v2 for now. > >> > >> This fixes an issue with an older mesa bug taking outo the system > >> because of GMU going off into the weeds. > >> > >> What we _think_ is happening is that, if the GPU generates 1000's of > >> faults at ~once (which is something that GPUs can be good at), it can > >> result in a sufficient number of stalled translations preventing other > >> transactions from entering the same TBU. > >> > >> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> > > > > Reviewed-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx> > > > > Btw, if stall is not enabled, I think there is no point in capturing > coredump from adreno pagefault handler. By the time we start coredump, > gpu might have switched context. > > -Akhil. > > > -Akhil > >
