On Mon, Nov 21, 2022 at 02:48:55PM +0530, Arun R Murthy wrote: > The WaFbcTurnOffFbcWhenHyperVisorIsUsed is applicable for all GEN9 > platforms as per BspecID: 0852
No. It says it was broken on kbl/cnl A-step. > > Signed-off-by: Arun R Murthy <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_fbc.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c > b/drivers/gpu/drm/i915/display/intel_fbc.c > index b5ee5ea0d010..efd5659b3b60 100644 > --- a/drivers/gpu/drm/i915/display/intel_fbc.c > +++ b/drivers/gpu/drm/i915/display/intel_fbc.c > @@ -1652,9 +1652,9 @@ static int intel_sanitize_fbc_option(struct > drm_i915_private *i915) > > static bool need_fbc_vtd_wa(struct drm_i915_private *i915) > { > - /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */ > + /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt,cnl,kbl */ > if (i915_vtd_active(i915) && > - (IS_SKYLAKE(i915) || IS_BROXTON(i915))) { > + (DISPLAY_VER(i915) == 9) || DISPLAY_VER(i915) == 10) { > drm_info(&i915->drm, > "Disabling framebuffer compression (FBC) to prevent > screen flicker with VT-d enabled\n"); > return true; > -- > 2.25.1 -- Ville Syrjälä Intel
