On Thu, Jul 16, 2020 at 02:25:40PM +0530, Uma Shankar wrote:
> 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@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Acked-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> 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
--
Ville Syrjälä
Intel
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