drm/i915/mtl: Skip pcode qgv restrictions for MTL

Communicating QGV points restriction to PUnit happens via PM Demand instead of the Pcode mailbox in the previous platforms. GV point restriction is handled by the PM demand code. Signed-off-by: Radhakrishna Sripada <[email protected]> Reviewed-by: Vinod Govindapillai <[email protected]> Signed-off-by: Stanislav Lisovskiy <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
kawasaki · Apr 21, 2023 · 6152aec · 6152aec
1 parent bfa010f
commit 6152aec
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -150,6 +150,9 @@ int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv,
 {
 	int ret;
 
+	if (DISPLAY_VER(dev_priv) >= 14)
+		return 0;
+
 	/* bspec says to keep retrying for at least 1 ms */
 	ret = skl_pcode_request(&dev_priv->uncore, ICL_PCODE_SAGV_DE_MEM_SS_CONFIG,
 				points_mask,