From 6b6fb0018d0aafe1c95aac97e474978ec3a8dd35 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Tue, 16 Nov 2021 09:48:16 -0800
Subject: drm/i915/dg2: Add Wa_16011777198
Git-commit: 34734ab72763d51c6b809ee80ceb04a161a37dd1
Patch-mainline: v5.17-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
Coarse power gating for render should not be enabled on some DG2
steppings.
Bspec: 52698
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211116174818.2128062-4-matthew.d.roper@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/gt/intel_rc6.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c
index 43093dd2d0c9..c3155ee58689 100644
--- a/drivers/gpu/drm/i915/gt/intel_rc6.c
+++ b/drivers/gpu/drm/i915/gt/intel_rc6.c
@@ -117,10 +117,17 @@ static void gen11_rc6_enable(struct intel_rc6 *rc6)
GEN6_RC_CTL_RC6_ENABLE |
GEN6_RC_CTL_EI_MODE(1);
- pg_enable =
- GEN9_RENDER_PG_ENABLE |
- GEN9_MEDIA_PG_ENABLE |
- GEN11_MEDIA_SAMPLER_PG_ENABLE;
+ /* Wa_16011777198 - Render powergating must remain disabled */
+ if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
+ IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))
+ pg_enable =
+ GEN9_MEDIA_PG_ENABLE |
+ GEN11_MEDIA_SAMPLER_PG_ENABLE;
+ else
+ pg_enable =
+ GEN9_RENDER_PG_ENABLE |
+ GEN9_MEDIA_PG_ENABLE |
+ GEN11_MEDIA_SAMPLER_PG_ENABLE;
if (GRAPHICS_VER(gt->i915) >= 12) {
for (i = 0; i < I915_MAX_VCS; i++)
--
2.38.1