[Intel-gfx] [PATCH] drm/i915/vlv: disable PPGTT on early revs

[Jesse Barnes]

On Fri, 13 Jun 2014 18:54:02 +0300
Ville Syrjälä <ville.syrjala at linux.intel.com> wrote:

> On Fri, Jun 13, 2014 at 08:32:38AM -0700, Jesse Barnes wrote:
> > Early revs didn't have PPGTT support, so disable there.
> > 
> > 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 at virtuousgeek.org>
> > ---
> >  drivers/gpu/drm/i915/i915_gem_gtt.c |    4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> > index 8b3cde7..01287d9 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> > @@ -63,6 +63,10 @@ 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 < 0xc)
> 
> Did you mean < 0xb?

No, unless you tested on 0xb...

-- 
Jesse Barnes, Intel Open Source Technology Center