On Wed, Oct 03, 2012 at 07:34:23PM -0700, Ben Widawsky wrote: > That fix was the disable render deptch cache pipeline flush > > Signed-off-by: Ben Widawsky <ben at bwidawsk.net> I've stumbled over the same one, but my docs here suggest i965g/gm45 need it, too: http://cgit.freedesktop.org/~danvet/drm/commit/?h=ilk-wa-pile&id=37c4c82b8cdbcf5adccad97f0b45747ba37ed659 Have you checked whether we don't need this on ivb/vlv/hsw, too? Also, for w/a patches based on the vpg w/a database, please include the vpg w/a name tag both in the commit message and in a code comment somewhere. -Daniel > --- > drivers/gpu/drm/i915/intel_pm.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index f1800ca..8aafa45 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -3338,6 +3338,8 @@ static void ironlake_init_clock_gating(struct drm_device *dev) > I915_WRITE(WM2_LP_ILK, 0); > I915_WRITE(WM1_LP_ILK, 0); > > + I915_WRITE(CACHE_MODE_0, > + _MASKED_BIT_ENABLE(CM0_RC_PIPELINE_FLUSH_DISABLE)); > /* > * Based on the document from hardware guys the following bits > * should be set unconditionally in order to enable FBC. > -- > 1.7.12.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
