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drm/i915/fbc: Disable fbc by default on all glk+
We're missing a workaround in the fbc code for all glk+ platforms
which can cause corruption around the top of the screen. So
enabling fbc by default is a bad idea. I'm not keen to backport
the w/a so let's start by disabling fbc by default on all glk+.
We'll lift the restriction once the w/a is in place.
Cc: stable@vger.kernel.org
Cc: Daniel Drake <drake@endlessm.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
(cherry picked from commit cd8c021b36
)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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@ -1284,7 +1284,7 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
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return 0;
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/* https://bugs.freedesktop.org/show_bug.cgi?id=108085 */
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if (IS_GEMINILAKE(dev_priv))
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if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
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return 0;
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if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
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