On Fri, Feb 14, 2020 at 09:10:38AM -0800, Matt Roper wrote: > On Wed, Feb 12, 2020 at 11:17:28AM -0800, Rafael Antognolli wrote: > > It's not clear whether this workaround is final yet, but the BSpec > > indicates that userspace needs to set bit 9 of this register on demand: > > > > "To avoid sporadic corruptions “Set 0x7010[9] when Depth Buffer > > Surface Format is D16_UNORM , surface type is not NULL & 1X_MSAA" > > > > BugLink: https://gitlab.freedesktop.org/mesa/mesa/issues/2501 > > Signed-off-by: Rafael Antognolli <rafael.antognolli@xxxxxxxxx> > > Seems like the right register to whitelist to allow userspace to apply > the workaround. > > Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx> > > I think we can drop the "Allow userpace to implement this workaround" > part of the comment; that part is self-explanatory given that it's a > whitelist entry. Do you mind if we just tweak the comment while > applying? It looks like the CI shards queue is massive right now so > it's already going to take a long time to get the full results back for > this patch; no need to make it even longer by resubmitting for a trivial > comment shortening. I don't mind it at all, feel free to change it however you want. Thanks! Rafael > > Matt > > > --- > > drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c > > index 62b43f538a56..57b9685d9347 100644 > > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > > @@ -1264,6 +1264,12 @@ static void tgl_whitelist_build(struct intel_engine_cs *engine) > > whitelist_reg_ext(w, PS_INVOCATION_COUNT, > > RING_FORCE_TO_NONPRIV_ACCESS_RD | > > RING_FORCE_TO_NONPRIV_RANGE_4); > > + > > + /* Wa_1808121037:tgl > > + * > > + * Allow userpace to implement this workaround. > > + */ > > + whitelist_reg(w, GEN7_COMMON_SLICE_CHICKEN1); > > break; > > default: > > break; > > -- > > 2.25.0 > > > > _______________________________________________ > > Intel-gfx mailing list > > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx > > -- > Matt Roper > Graphics Software Engineer > VTT-OSGC Platform Enablement > Intel Corporation > (916) 356-2795 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
