[Intel-gfx] [PATCH 1/2] drm/i915: Extend Wa_1606931601 for all steppings.

[Matt Atwood]

From: Anusha Srivatsa <anusha.srivatsa at intel.com>

According to BSpec. Wa_1606931601 applies for all
TGL steppings.This patch moves the WA implementation
out of A0 only block of rcs_engine_wa_init().

The WA is has also been referred to by an alternate name
Wa_1607090982.

Bspec: 46045,52890

Fixes: 3873fd1a43c7 ("drm/i915: Use engine wa list for Wa_1607090982")
Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 887e0dc701f7..7cc8a7fc53c7 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1329,6 +1329,13 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 {
 	struct drm_i915_private *i915 = engine->i915;
 
+	if (IS_TIGERLAKE(i915)) {
+		/* Wa_1606931601:tgl */
+		wa_masked_en(wal,
+			     GEN7_ROW_CHICKEN2,
+			     GEN12_DISABLE_EARLY_READ);
+	}
+
 	if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
 		/* Wa_1606700617:tgl */
 		wa_masked_en(wal,
@@ -1360,11 +1367,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 		wa_write_or(wal,
 			    GEN7_FF_THREAD_MODE,
 			    GEN12_FF_TESSELATION_DOP_GATE_DISABLE);
-
-		/* Wa_1606931601:tgl */
-		wa_masked_en(wal,
-			     GEN7_ROW_CHICKEN2,
-			     GEN12_DISABLE_EARLY_READ);
 	}
 
 	if (IS_GEN(i915, 11)) {
-- 
2.21.1