From 45810b4c5c33f785053169f053f282fbfd04e93e Mon Sep 17 00:00:00 2001
From: Matt Atwood <matthew.s.atwood@intel.com>
Date: Tue, 20 Sep 2022 13:43:59 -0700
Subject: drm/i915/dg2: introduce Wa_22015475538
Git-commit: 45810b4c5c33f785053169f053f282fbfd04e93e
Patch-mainline: v6.2-rc1
References: jsc#PED-1218
Wa_22015475538 applies to all DG2 (and ATSM) skus. The workaround
implementation is identical to Wa_16011620976. LSC_CHICKEN_BIT_0_UDW is
a general render register instead of rcs so adding this move to the
proper wa init function.
bspec:54077
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220920204359.103370-1-matthew.s.atwood@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index d04652a3b4e5..ff5220694f46 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2118,9 +2118,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
if (IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0)) {
/* Wa_14013392000:dg2_g11 */
wa_masked_en(wal, GEN7_ROW_CHICKEN2, GEN12_ENABLE_LARGE_GRF_MODE);
-
- /* Wa_16011620976:dg2_g11 */
- wa_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
}
if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_FOREVER) ||
@@ -2790,6 +2787,14 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
wa_write_or(wal, VDBX_MOD_CTRL, FORCE_MISS_FTLB);
wa_write_or(wal, VEBX_MOD_CTRL, FORCE_MISS_FTLB);
}
+
+ if (IS_DG2(i915)) {
+ /*
+ * Wa_16011620976:dg2_g11
+ * Wa_22015475538:dg2
+ */
+ wa_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
+ }
}
static void
--
2.39.0