[Intel-gfx] [PATCH] drm/i915/display/fbc: Disable fbc by default on TGL
Uma Shankar
uma.shankar at intel.com
Thu Jul 16 08:55:40 UTC 2020
Fbc is causing random underruns in CI execution on TGL platforms.
Disabling the same while the problem is being debugged and analyzed.
Cc: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
---
drivers/gpu/drm/i915/display/intel_fbc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 3a4f980788a6..1d6370b29b27 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -1420,6 +1420,13 @@ void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv)
*/
static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
{
+ /*
+ * Fbc is causing random underruns in CI execution on TGL platforms.
+ * Disabling the same while the problem is being debugged and analyzed.
+ */
+ if (IS_TIGERLAKE(dev_priv))
+ return 0;
+
if (dev_priv->params.enable_fbc >= 0)
return !!dev_priv->params.enable_fbc;
--
2.22.0
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