drm/i915/tgl: disable SAGV temporarily

SAGV is not currently working for Tiger Lake. We better disable it until
the implementation is stabilized and we can enable it.

HSDES: 1409542895 2208191909

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190904213419.27547-6-jose.souza@intel.com
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 4fa9bc83c8b4f79fbf5911b89d2b360fff9bc914..7294fcf053237c20587fd0e11447a66e3afc3e5e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3654,6 +3654,10 @@ static bool skl_needs_memory_bw_wa(struct drm_i915_private *dev_priv)
 static bool
 intel_has_sagv(struct drm_i915_private *dev_priv)
 {
+       /* HACK! */
+       if (IS_GEN(dev_priv, 12))
+               return false;
+
        return (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) &&
                dev_priv->sagv_status != I915_SAGV_NOT_CONTROLLED;
 }