From: Clint Taylor <clinton.a.tay...@intel.com>
BSPEC: 46123
Cc: Matt Roper <matthew.d.ro...@intel.com>
Signed-off-by: Clint Taylor <clinton.a.tay...@intel.com>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +++++
drivers/gpu/drm/i915/i915_reg.h | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 6a4372c3a3c5..5cdacfa8aefc 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -688,6 +688,11 @@ static void dg2_ctx_workarounds_init(struct
intel_engine_cs *engine,
IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0))
wa_masked_en(wal, GEN9_HALF_SLICE_CHICKEN7,
DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA);
+
+ /* wa_14015023722: DG2 G11 [B0..NONE] */
+ if (IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_B0, STEP_FOREVER))
+ wa_masked_en(wal, VF_PREEMPTION, PREEMPTION_VERTEX_4000);
+
}
static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine,
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index ef6bc8180073..5805a45920b3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -11934,4 +11934,8 @@ enum skl_power_gate {
#define SLICE_COMMON_ECO_CHICKEN1 _MMIO(0x731C)
#define MSC_MSAA_REODER_BUF_BYPASS_DISABLE REG_BIT(14)
+#define VF_PREEMPTION _MMIO(0x83a4)
+#define PREEMPTION_VERTEX_COUNT REG_GENMASK(15, 0)
+#define PREEMPTION_VERTEX_4000
REG_FIELD_PREP(PREEMPTION_VERTEX_COUNT, 0x4000)
+
#endif /* _I915_REG_H_ */
--
2.34.1
