The WaFbcTurnOffFbcWhenHyperVisorIsUsed is applicable for SKL, BXT and
KBL.
Bspec: 0852
v2: Updated commit msg and corrected Bspec format(Jani N)
v3: Updated the stepping information
Signed-off-by: Arun R Murthy <arun.r.mur...@intel.com>
---
drivers/gpu/drm/i915/display/intel_fbc.c | 5 +++--
1 file changed, 3 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..7c06ad454a7d 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -1652,9 +1652,10 @@ 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,kbl */
if (i915_vtd_active(i915) &&
- (IS_SKYLAKE(i915) || IS_BROXTON(i915))) {
+ (IS_SKYLAKE(i915) || IS_BROXTON(i915) ||
+ IS_KBL_DISPLAY_STEP(i915, STEP_A0, STEP_B0))) {
drm_info(&i915->drm,
"Disabling framebuffer compression (FBC) to prevent
screen flicker with VT-d enabled\n");
return true;
--
2.25.1
