[Intel-gfx] [PATCH v2 3/4] drm/i915/mtl: Extend Wa_22011802037 to MTL A-step

[Radhakrishna Sripada]

From: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep at intel.com>

Wa_22011802037 was being applied to all graphics_ver 11 & 12. This patch
updates the if statement to apply the W/A to right platforms and extends
it to MTL-M:A step.

v1.1: Fix checkpatch warning.
v2: Change the check to reflect the wa at other palces(Lucas)

Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep at intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 88e881b100cf..ee3e8352637f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1629,16 +1629,16 @@ static void guc_reset_state(struct intel_context *ce, u32 head, bool scrub)
 
 static void guc_engine_reset_prepare(struct intel_engine_cs *engine)
 {
-	if (!IS_GRAPHICS_VER(engine->i915, 11, 12))
-		return;
-
-	intel_engine_stop_cs(engine);
-
 	/*
 	 * Wa_22011802037: In addition to stopping the cs, we need
 	 * to wait for any pending mi force wakeups
 	 */
-	intel_engine_wait_for_pending_mi_fw(engine);
+	if (IS_MTL_GRAPHICS_STEP(engine->i915, M, STEP_A0, STEP_B0) ||
+	    (GRAPHICS_VER(engine->i915) >= 11 &&
+	     GRAPHICS_VER_FULL(engine->i915) < IP_VER(12, 70))) {
+		intel_engine_stop_cs(engine);
+		intel_engine_wait_for_pending_mi_fw(engine);
+	}
 }
 
 static void guc_reset_nop(struct intel_engine_cs *engine)
-- 
2.34.1