diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbc.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 33142427f121..ca44cec73fd2 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -734,8 +734,19 @@ static void intel_fbc_nuke(struct intel_fbc *fbc) static void intel_fbc_activate(struct intel_fbc *fbc) { + struct intel_display *display = fbc->display; + lockdep_assert_held(&fbc->lock); + /* only the fence can change for a flip nuke */ + if (fbc->active && !intel_fbc_has_fences(display)) + return; + /* + * In case of FBC dirt rect, any updates to the FBC registers will + * trigger the nuke. + */ + drm_WARN_ON(display->drm, fbc->active && HAS_FBC_DIRTY_RECT(display)); + intel_fbc_hw_activate(fbc); intel_fbc_nuke(fbc); |