drm/i915: Serialize GTT/Aperture accesses on BXT

[karo-tx-linux.git] / drivers / gpu / drm / i915 / i915_drv.h

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 17883a84b8c11b4d3e523d269442fb68aab49577..a5a01b683d48be7d4007cecb5c8838f50f09fbf5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3006,6 +3006,16 @@ static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
        return false;
 }
 
+static inline bool
+intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *dev_priv)
+{
+#ifdef CONFIG_INTEL_IOMMU
+       if (IS_BROXTON(dev_priv) && intel_iommu_gfx_mapped)
+               return true;
+#endif
+       return false;
+}
+
 int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
                                int enable_ppgtt);