On Tue, Jul 08, 2014 at 10:40:30AM +0100, Chris Wilson wrote: > For whatever reason, MI_DISPLAY_FLIP fails to change tiling mode on > Baytrail, so just use CPU driven mmio flips instead. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76176 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Both merged to dinq with the bz link for the first patch added. -Daniel > --- > drivers/gpu/drm/i915/intel_display.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index 103d8f450e74..8a9695697380 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -9453,6 +9453,9 @@ static bool use_mmio_flip(struct intel_engine_cs *ring, > * So using MMIO flips there would disrupt this mechanism. > */ > > + if (ring == NULL) > + return true; > + > if (INTEL_INFO(ring->dev)->gen < 5) > return false; > > @@ -9747,6 +9750,9 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, > > if (IS_VALLEYVIEW(dev)) { > ring = &dev_priv->ring[BCS]; > + if (obj->tiling_mode != work->old_fb_obj->tiling_mode) > + /* vlv: DISPLAY_FLIP fails to change tiling */ > + ring = NULL; > } else if (IS_IVYBRIDGE(dev)) { > ring = &dev_priv->ring[BCS]; > } else if (INTEL_INFO(dev)->gen >= 7) { > -- > 2.0.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
