diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_frontbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_frontbuffer.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_frontbuffer.c b/drivers/gpu/drm/i915/intel_frontbuffer.c index bdf0d57cad0f..3b0ac73ede8f 100644 --- a/drivers/gpu/drm/i915/intel_frontbuffer.c +++ b/drivers/gpu/drm/i915/intel_frontbuffer.c @@ -266,3 +266,28 @@ void intel_frontbuffer_flip_complete(struct drm_device *dev, intel_frontbuffer_flush(dev, frontbuffer_bits); } + +/** + * intel_frontbuffer_flip - synchronous frontbuffer flip + * @dev: DRM device + * @frontbuffer_bits: frontbuffer plane tracking bits + * + * This function gets called after scheduling a flip on @obj. This is for + * synchronous plane updates which will happen on the next vblank and which will + * not get delayed by pending gpu rendering. + * + * Can be called without any locks held. + */ + +void intel_frontbuffer_flip(struct drm_device *dev, + unsigned frontbuffer_bits) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + mutex_lock(&dev_priv->fb_tracking.lock); + /* Remove stale busy bits due to the old buffer. */ + dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits; + mutex_unlock(&dev_priv->fb_tracking.lock); + + intel_frontbuffer_flush(dev, frontbuffer_bits); +} |
