On Mon, Jun 24, 2024 at 11:29 AM Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> wrote: > > On Mon, 24 Jun 2024 at 20:59, Rob Clark <robdclark@xxxxxxxxx> wrote: > > > > On Thu, Jun 20, 2024 at 11:48 PM Luca Weiss <luca.weiss@xxxxxxxxxxxxx> wrote: > > > > > > On Fri Jun 21, 2024 at 12:47 AM CEST, Konrad Dybcio wrote: > > > > > > > > > > > > On 6/20/24 20:24, Dmitry Baryshkov wrote: > > > > > On Thu, 20 Jun 2024 at 20:32, Rob Clark <robdclark@xxxxxxxxx> wrote: > > > > >> > > > > >> On Thu, May 30, 2024 at 2:48 AM Marc Gonzalez <mgonzalez@xxxxxxxxxx> wrote: > > > > >>> > > > > >>> On 16/05/2024 10:43, Marijn Suijten wrote: > > > > >>> > > > > >>>> On 2024-05-15 17:09:02, Marc Gonzalez wrote: > > > > >>>> > > > > >>>>> When create_address_space() fails (e.g. when smmu node is disabled) > > > > >> > > > > >> Note that smmu support is going to become a hard dependency with the > > > > >> drm_gpuvm/VM_BIND conversion.. which I think means we should never get > > > > >> far enough to hit this error path.. > > > > > > > > > > Does that mean that we will lose GPU support on MSM8974? > > > > And display support as well :-/ > > > > Note that GPU should be disabled by default without smmu.. you can > > override with modparam, but please don't. It is incredibly insecure, > > you might as well make /dev/mem world readable/writeable. > > > > Is simplefb an option on 8974 or 8226 to keep display support? > > Not in a longer term, I still hope to push HDMI PHY/PLL support for > MSM8974, which means dynamic resolution support. Hmm, maybe it would be possible to re-add carveout support.. but my hopes aren't too high. It would be better if we could get smmu going. (Not to mention, I don't really like the idea of people using the gpu without an smmu... it is a really insecure thing to do.) BR, -R > > > > BR, > > -R > > > > > > > > > > Yeah, that was brought up on #freedreno some time ago > > > > > > Also on MSM8226 which I also care about... > > > > > > Anyone at all knowledgable on IOMMU would be very welcome to help out > > > with IOMMU support on these two platforms (and anything else that > > > old?) in any case, since me and some other people have looked at this > > > (on and off) for years but haven't gotten to any stable or usable point > > > unfortunately. > > > > > > Regards > > > Luca > > > > > > > > > > > Konrad > > > > > > > -- > With best wishes > Dmitry
