On Wed, 19 Dec 2012 13:47:41 +0200, Ville Syrj??l?? <ville.syrjala at linux.intel.com> wrote: > On Tue, Dec 18, 2012 at 10:13:14PM +0000, Chris Wilson wrote: > > This proves to be very useful when investigating why code suddenly > > started failing. > > > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > > --- > > drivers/gpu/drm/i915/intel_display.c | 33 +++++++++++++++++++++++++-------- > > 1 file changed, 25 insertions(+), 8 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > > index 211a097..50d6580 100644 > > --- a/drivers/gpu/drm/i915/intel_display.c > > +++ b/drivers/gpu/drm/i915/intel_display.c > > @@ -8293,19 +8293,30 @@ int intel_framebuffer_init(struct drm_device *dev, > > { > > int ret; > > > > - if (obj->tiling_mode == I915_TILING_Y) > > + if (obj->tiling_mode == I915_TILING_Y) { > > + DRM_DEBUG("hardware does not support tiling Y\n"); > > Shouldn't all of these be DRM_DEBUG_KMS()? I choose DRM_DEBUG because these are user errors, which I think has been the prevailing choice in the past. -Chris -- Chris Wilson, Intel Open Source Technology Centre