diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 813cc3cda05..1a6bb610149 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8897,6 +8897,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | GEN6_RCCUNIT_CLOCK_GATE_DISABLE); + /* Bspec says we need to always set all mask bits. */ + I915_WRITE(_3D_CHICKEN, (0xFFFF << 16) | + _3D_CHICKEN_SF_DISABLE_FASTCLIP_CULL); + /* * According to the spec the following bits should be * set in order to enable memory self-refresh and fbc: |