/**
* intel_fbc_init_pipe_state - initialize FBC's CRTC visibility tracking
* @dev_priv: i915 device instance
*
* The FBC code needs to track CRTC visibility since the older platforms can't
* have FBC enabled while multiple pipes are used. This function does the
* initial setup at driver load to make sure FBC is matching the real hardware.
*/
void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv)
{
struct intel_crtc *crtc;
/* Don't even bother tracking anything if we don't need. */
if (!no_fbc_on_multiple_pipes(dev_priv))
return;
for_each_intel_crtc(dev_priv->dev, crtc)
if (intel_crtc_active(&crtc->base) &&
to_intel_plane_state(crtc->base.primary->state)->visible)
dev_priv->fbc.visible_pipes_mask |= (1 << crtc->pipe);
}
static bool multiple_pipes_ok(struct intel_crtc *crtc,
struct intel_plane_state *plane_state)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_fbc *fbc = &dev_priv->fbc;
enum pipe pipe = crtc->pipe;
/* Don't even bother tracking anything we don't need. */
if (!no_fbc_on_multiple_pipes(dev_priv))
return true;
if (plane_state->base.visible)
fbc->visible_pipes_mask |= (1 << pipe);
else
fbc->visible_pipes_mask &= ~(1 << pipe);
return (fbc->visible_pipes_mask & ~(1 << pipe)) != 0;
}
static bool multiple_pipes_ok(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
struct drm_plane *primary = crtc->base.primary;
struct intel_fbc *fbc = &dev_priv->fbc;
enum pipe pipe = crtc->pipe;
/* Don't even bother tracking anything we don't need. */
if (!no_fbc_on_multiple_pipes(dev_priv))
return true;
WARN_ON(!drm_modeset_is_locked(&primary->mutex));
if (to_intel_plane_state(primary->state)->visible)
fbc->visible_pipes_mask |= (1 << pipe);
else
fbc->visible_pipes_mask &= ~(1 << pipe);
return (fbc->visible_pipes_mask & ~(1 << pipe)) != 0;
}
