Commit e3cb653d authored by Chris Wilson's avatar Chris Wilson

drm/i915: Disable FBC if BIOS reserved memory (stolen) is unavailable

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: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911175926.31365-1-chris@chris-wilson.co.uk
parent 933122cc
...@@ -1320,6 +1320,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv) ...@@ -1320,6 +1320,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv)
fbc->enabled = false; fbc->enabled = false;
fbc->active = 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)) if (need_fbc_vtd_wa(dev_priv))
mkwrite_device_info(dev_priv)->display.has_fbc = false; mkwrite_device_info(dev_priv)->display.has_fbc = false;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment