iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911175926.31365-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-09-11 18:59:26 +01:00
parent 933122cc7c
commit e3cb653d5c
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/display/intel_fbc.c
View File

@ -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;