void intel_uncore_sanitize(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- u32 reg_val;
-
/* BIOS often leaves RC6 enabled, but disable it for hw init */
intel_disable_gt_powersave(dev);
-
- /* Turn off power gate, require especially for the BIOS less system */
- if (IS_VALLEYVIEW(dev)) {
-
- mutex_lock(&dev_priv->rps.hw_lock);
- reg_val = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_STATUS);
-
- if (reg_val & (PUNIT_PWRGT_PWR_GATE(PUNIT_POWER_WELL_RENDER) |
- PUNIT_PWRGT_PWR_GATE(PUNIT_POWER_WELL_MEDIA) |
- PUNIT_PWRGT_PWR_GATE(PUNIT_POWER_WELL_DISP2D)))
- vlv_punit_write(dev_priv, PUNIT_REG_PWRGT_CTRL, 0x0);
-
- mutex_unlock(&dev_priv->rps.hw_lock);
-
- }
}
/*