diff options
| author | Paulo Zanoni <[email protected]> | 2015-11-11 14:46:22 -0200 |
|---|---|---|
| committer | Paulo Zanoni <[email protected]> | 2015-12-03 11:38:11 -0200 |
| commit | ee7d6cfa4b15aafa1d87f913572f30dd64cdd85a (patch) | |
| tree | 8198a7ef33520aa1667dbac4ad61c0efe619603a | |
| parent | 820bcabbf0acce7f3e7b72ed5e51b0a1d9c2046d (diff) | |
drm/i915: only recompress FBC after flushing a drawing operation
There's no need to stop and restart FBC, which is quite expensive as
we have to revalidate the CRTC state. After flushing a drawing
operation we know the CRTC state hasn't changed, so a nuke
(recompress) should be fine.
v2: Make it simpler (Chris).
v3: Rewrite the patch again due to patch order changes.
v4: Rewrite commit message (Chris).
Reviewed-by: Chris Wilson <[email protected]>
Signed-off-by: Paulo Zanoni <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fbc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index af621de700fb..a1988a486b92 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -935,8 +935,12 @@ void intel_fbc_flush(struct drm_i915_private *dev_priv, dev_priv->fbc.busy_bits &= ~frontbuffer_bits; if (!dev_priv->fbc.busy_bits && dev_priv->fbc.enabled) { - __intel_fbc_deactivate(dev_priv); - __intel_fbc_update(dev_priv->fbc.crtc); + if (origin != ORIGIN_FLIP && dev_priv->fbc.active) { + intel_fbc_recompress(dev_priv); + } else { + __intel_fbc_deactivate(dev_priv); + __intel_fbc_update(dev_priv->fbc.crtc); + } } mutex_unlock(&dev_priv->fbc.lock); |