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

Ben Widawsky
2013-11-03T04:08:24Z

GEN8 also needs this workaround.

Signed-off-by: Ben Widawsky <ben@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