From cf48bddd31deefb9ab07de9a4d0150da6610198a Mon Sep 17 00:00:00 2001
From: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Date: Wed, 28 Feb 2024 16:02:25 +0200
Subject: [PATCH] drm/i915/display: Disable AuxCCS framebuffers if built for Xe
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AuxCCS framebuffers don't work on Xe driver hence disable them
from plane capabilities until they are fixed. FlatCCS framebuffers
work and they are left enabled. CCS is left untouched for i915
driver.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/933
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Tested-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Fixes: 44e694958b95 ("drm/xe/display: Implement display support")
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240228140225.858145-1-juhapekka.heikkila@gmail.com
(cherry picked from commit b7232a730fbf043f54fb46fbf4a6e92936770e79)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
drivers/gpu/drm/i915/display/skl_universal_plane.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index e941e2e4fd14c..860574d04f881 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2295,6 +2295,9 @@ static u8 skl_get_plane_caps(struct drm_i915_private *i915,
if (HAS_4TILE(i915))
caps |= INTEL_PLANE_CAP_TILING_4;
+ if (!IS_ENABLED(I915) && !HAS_FLAT_CCS(i915))
+ return caps;
+
if (skl_plane_has_rc_ccs(i915, pipe, plane_id)) {
caps |= INTEL_PLANE_CAP_CCS_RC;
if (DISPLAY_VER(i915) >= 12)
--
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