diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f74d7f506aa9..0ed4df2c5c95 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4698,6 +4698,14 @@ static void gen6_init_clock_gating(struct drm_device *dev) _3D_CHICKEN3_SF_DISABLE_FASTCLIP_CULL); /* + * Bspec says: + * "This bit must be set if 3DSTATE_CLIP clip mode is set to normal and + * 3DSTATE_SF number of SF output attributes is more than 16." + */ + I915_WRITE(_3D_CHICKEN3, + _MASKED_BIT_ENABLE(_3D_CHICKEN3_SF_DISABLE_PIPELINED_ATTR_FETCH)); + + /* * According to the spec the following bits should be * set in order to enable memory self-refresh and fbc: * The bit21 and bit22 of 0x42000 |