[Intel-gfx] [PATCH] drm/i915/xelp: Implement Wa_1606376872

[Gustavo Sousa]

Wa_1606376872 applies to all Xe_LP IPs.

Signed-off-by: Gustavo Sousa <gustavo.sousa at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt_regs.h     | 3 +++
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index 08d76aa06974..4aecb5a7b631 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -478,6 +478,9 @@
 #define   HDC_FORCE_NON_COHERENT		(1 << 4)
 #define   HDC_BARRIER_PERFORMANCE_DISABLE	(1 << 10)
 
+#define COMMON_SLICE_CHICKEN4			_MMIO(0x7300)
+#define   DISABLE_TDC_LOAD_BALANCING_CALC	REG_BIT(6)
+
 #define GEN8_HDC_CHICKEN1			_MMIO(0x7304)
 
 #define GEN11_COMMON_SLICE_CHICKEN3		_MMIO(0x7304)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 32aa1647721a..8092f289c492 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -743,9 +743,13 @@ static void gen12_ctx_workarounds_init(struct intel_engine_cs *engine,
 	       FF_MODE2_GS_TIMER_224,
 	       0, false);
 
-	if (!IS_DG1(i915))
+	if (!IS_DG1(i915)) {
 		/* Wa_1806527549 */
 		wa_masked_en(wal, HIZ_CHICKEN, HZ_DEPTH_TEST_LE_GE_OPT_DISABLE);
+
+		/* Wa_1606376872 */
+		wa_masked_en(wal, COMMON_SLICE_CHICKEN4, DISABLE_TDC_LOAD_BALANCING_CALC);
+	}
 }
 
 static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine,
-- 
2.39.2