On Thu, 26 Jun 2014 17:59:48 +0300 Ville Syrjälä <[email protected]> wrote:
> On Wed, Jun 25, 2014 at 03:45:33PM -0700, Jesse Barnes wrote: > > Apparently trinary logic is hard. We were falling through all the forced > > cases and simply enabling aliasing PPGTT or not based on hardware, > > rather than full PPGTT if available. > > > > References: https://bugs.freedesktop.org/show_bug.cgi?id=80083 > > Signed-off-by: Jesse Barnes <[email protected]> > > --- > > drivers/gpu/drm/i915/i915_gem_gtt.c | 8 +++++++- > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c > > b/drivers/gpu/drm/i915/i915_gem_gtt.c > > index a4153ee..86521a7 100644 > > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > > @@ -69,7 +69,13 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, > > int enable_ppgtt) > > return 0; > > } > > > > - return HAS_ALIASING_PPGTT(dev) ? 1 : 0; > > + /* Fall through to auto-detect */ > > + if (HAS_PPGTT(dev)) > > + return 2; > > + else if (HAS_ALIASING_PPGTT(dev)) > > + return 1; > > + > > + return 0; > > I don't get it. This would just enable full ppgtt by default. But full > ppgtt is still a bit broken so I don't think we want this. > > The dmesg in the bug shows that ppgtt was forced off by the PCI revision > check, so that part seems to have worked. Looks like the tests doesn't > expect the batches to be accepted by the kernel, but the cmd parser is > bypassed when ppgtt is disabled, so the test fails. Yeah and I was testing on a platform that had PPGTT support, and figured I had screwed up the PPGTT enable. But I guess not, and we can expect these tests to fail until we have the command parser enabled everywhere. -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
