The FBC requires a couple of contiguous buffers, which we allocate from stolen memory. If stolen memory is unavailable, we cannot allocate those buffers and so cannot support FBC. Mark it so. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_fbc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index dc34b23e2320..3111ecaeabd0 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -1320,6 +1320,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv) fbc->enabled = false; fbc->active = false; + if (!drm_mm_initialized(&dev_priv->mm.stolen)) + mkwrite_device_info(dev_priv)->display.has_fbc = false; + if (need_fbc_vtd_wa(dev_priv)) mkwrite_device_info(dev_priv)->display.has_fbc = false; -- 2.23.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
