Revert "drm/i915/display/fbc: Disable fbc by default on TGL"

FBC can be re-enabled on TGL with WA of keeping it disabled
while PSR2 is enabled.

This reverts commit 2982ded2ff5ce0cf1a49bc39a526da182782b664.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201201190406.1752-3-uma.shankar@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index f5d5a648cb224365dc0bcfa2f7c0d3e5a4bb4002..33200b5cfad02dbe2a576f6150b32fcf5dd37584 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -1445,13 +1445,6 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
        if (!HAS_FBC(dev_priv))
                return 0;
 
-       /*
-        * 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 (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
                return 1;