Using fbc with VT-d flickers also on kbl and cfl.
Cc: Paulo Zanoni paulo.r.zanoni@intel.com Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Chris Wilson chris@chris-wilson.co.uk Cc: Rodrigo Vivi rodrigo.vivi@intel.com Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Mika Kuoppala mika.kuoppala@linux.intel.com --- drivers/gpu/drm/i915/intel_fbc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 74d425c700ef..a149f08c1b79 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -1275,9 +1275,10 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
static bool need_fbc_vtd_wa(struct drm_i915_private *dev_priv) { - /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */ + /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt,kbl,cfl */ if (intel_vtd_active() && - (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))) { + (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv) || + IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))) { DRM_INFO("Disabling framebuffer compression (FBC) to prevent screen flicker with VT-d enabled\n"); return true; }