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Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d69f8f49beb..b3b4b6cea8b 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3474,6 +3474,11 @@ static void gen6_init_clock_gating(struct drm_device *dev) DISPPLANE_TRICKLE_FEED_DISABLE); intel_flush_display_plane(dev_priv, pipe); } + + /* The default value should be 0x200 according to docs, but the two + * platforms I checked have a 0 for this. (Maybe BIOS overrides?) */ + I915_WRITE(GEN6_GT_MODE, _MASKED_BIT_DISABLE(0xffff)); + I915_WRITE(GEN6_GT_MODE, _MASKED_BIT_ENABLE(GEN6_GT_MODE_HI)); } static void gen7_setup_fixed_func_scheduler(struct drm_i915_private *dev_priv) |