[PATCH 08/23] drm/xe/xe3p: Stop programming RCU_MODE's fixed slice mode setting

[Lucas De Marchi <lucas.demarchi@intel.com>]

From: Matt Roper <matthew.d.roper@intel.com>

Since the hardware load balancing is no longer supported, the
programming in RCU_MODE is no longer necessary.

Bspec: 60382
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/xe/xe_hw_engine.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c
index 1cf623b4a5bcc..5544d91c21e8e 100644
--- a/drivers/gpu/drm/xe/xe_hw_engine.c
+++ b/drivers/gpu/drm/xe/xe_hw_engine.c
@@ -349,6 +349,13 @@ void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe)
 static bool xe_hw_engine_match_fixed_cslice_mode(const struct xe_gt *gt,
 						 const struct xe_hw_engine *hwe)
 {
+	/*
+	 * Xe3p no longer supports load balance mode, so "fixed cslice" mode
+	 * is automatic and no RCU_MODE programming is required.
+	 */
+	if (GRAPHICS_VER(gt_to_xe(gt)) >= 35)
+		return false;
+
 	return xe_gt_ccs_mode_enabled(gt) &&
 	       xe_rtp_match_first_render_or_compute(gt, hwe);
 }

-- 
2.51.0