From 6152aec1ddb40620cd8d2b36b45171c2d1bd82d1 Mon Sep 17 00:00:00 2001
From: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Date: Fri, 17 Mar 2023 17:58:52 -0700
Subject: [PATCH] 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 <radhakrishna.sripada@intel.com>
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230318005852.2303937-5-radhakrishna.sripada@intel.com
---
drivers/gpu/drm/i915/display/intel_bw.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 202321ffbe2ac..597d5816ad1b0 100644
--- 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,
--
GitLab