From 2ea8675088116391cddbfa76969285b7fdb4e672 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Thu, 2 Jun 2022 13:17:30 -0700
Subject: drm/i915/display/fbc: Do not apply WA 22014263786 to DG2
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Git-commit: 1d742694571655e49e11ea8f391bcafaf0f5ee74
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
This workaround brings some regressions to DG2 and if really necessary
for DG2 an alternative workaround will be implemented.
BSpec: 54077
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220602201730.199418-1-jose.souza@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_fbc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 6efae745ca5a..16537830ccf0 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -814,8 +814,8 @@ static void intel_fbc_program_cfb(struct intel_fbc *fbc)
static void intel_fbc_program_workarounds(struct intel_fbc *fbc)
{
- /* Wa_22014263786:icl,jsl,tgl,dg1,rkl,adls,dg2,adlp */
- if (DISPLAY_VER(fbc->i915) >= 11)
+ /* Wa_22014263786:icl,jsl,tgl,dg1,rkl,adls,adlp */
+ if (DISPLAY_VER(fbc->i915) >= 11 && !IS_DG2(fbc->i915))
intel_de_rmw(fbc->i915, ILK_DPFC_CHICKEN(fbc->id), 0,
DPFC_CHICKEN_FORCE_SLB_INVALIDATION);
}
--
2.38.1