On Fri, Jun 13, 2014 at 09:28:33AM -0700, Jesse Barnes wrote: > Early revs didn't have PPGTT support, so disable there. > > v2: add debug msg when disabling on early stepping > v3: enable on other B3 packages as well (untested) (Ville) > > References: https://bugs.freedesktop.org/show_bug.cgi?id=79669 > References: https://bugs.freedesktop.org/show_bug.cgi?id=79670 > Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> I don't have any affected systems myself, but it did fail for me on a pre-production part and the evidence from the bugs is strong, so: Acked-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_gem_gtt.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c > index 8b3cde7..7f226fa 100644 > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > @@ -63,6 +63,12 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) > } > #endif > > + /* Early VLV doesn't have this */ > + if (IS_VALLEYVIEW(dev) && dev->pdev->revision < 0xb) { > + DRM_DEBUG_DRIVER("disabling PPGTT on pre-B3 step VLV\n"); > + return 0; > + } > + > return HAS_ALIASING_PPGTT(dev) ? 1 : 0; > } > > -- > 1.7.9.5 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
