return 0;
}
+static void dg2_get_bw_info(struct drm_i915_private *i915)
+{
+ struct intel_bw_info *bi = &i915->max_bw[0];
+
+ /*
+ * DG2 doesn't have SAGV or QGV points, just a constant max bandwidth
+ * that doesn't depend on the number of planes enabled. Create a
+ * single dummy QGV point to reflect that. DG2-G10 platforms have a
+ * constant 50 GB/s bandwidth, whereas DG2-G11 platforms have 38 GB/s.
+ */
+ bi->num_planes = 1;
+ bi->num_qgv_points = 1;
+ if (IS_DG2_G11(i915))
+ bi->deratedbw[0] = 38000;
+ else
+ bi->deratedbw[0] = 50000;
+
+ i915->sagv_status = I915_SAGV_NOT_CONTROLLED;
+}
+
static unsigned int icl_max_bw(struct drm_i915_private *dev_priv,
int num_planes, int qgv_point)
{
if (!HAS_DISPLAY(dev_priv))
return;
- if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))
+ if (IS_DG2(dev_priv))
+ dg2_get_bw_info(dev_priv);
+ else if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))
icl_get_bw_info(dev_priv, &adls_sa_info);
else if (IS_ROCKETLAKE(dev_priv))
icl_get_bw_info(dev_priv, &rkl_sa_info);