[Intel-gfx] [PATCH 42/62] drm/i915/bdw: Implement WaSwitchSolVfFArbitrationPriority

[Ben Widawsky]

GEN8 also needs this workaround.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/gpu/drm/i915/intel_pm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index caf31b7..68dc363 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5192,6 +5192,9 @@ static void gen8_init_clock_gating(struct drm_device *dev)
 	I915_WRITE(WM3_LP_ILK, 0);
 	I915_WRITE(WM2_LP_ILK, 0);
 	I915_WRITE(WM1_LP_ILK, 0);
+
+	/* WaSwitchSolVfFArbitrationPriority */
+	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);
 }
 
 static void haswell_init_clock_gating(struct drm_device *dev)
-- 
1.8.4.2