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drm/i915/bdw: Implement WaSwitchSolVfFArbitrationPriority 

GEN8 also needs this workaround.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Add a generic comment that we need to recheck all these w/a.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-11-02 21:07:40 -07:00 committed by Daniel Vetter
parent 6bbfa1c5b6
commit 50ed5fbd9d
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/intel_pm.c
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@ -5188,6 +5188,12 @@ static void gen8_init_clock_gating(struct drm_device *dev)
I915_WRITE(WM3_LP_ILK, 0); I915_WRITE(WM3_LP_ILK, 0);
I915_WRITE(WM2_LP_ILK, 0); I915_WRITE(WM2_LP_ILK, 0);
I915_WRITE(WM1_LP_ILK, 0); I915_WRITE(WM1_LP_ILK, 0);
/* FIXME(BDW): Check all the w/a, some might only apply to
* pre-production hw. */
/* WaSwitchSolVfFArbitrationPriority */
I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);
} }
static void haswell_init_clock_gating(struct drm_device *dev) static void haswell_init_clock_gating(struct drm_device *dev)