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drm/i915: Don't write IVB_FBC_RT_BASE 

We use nuking instead of render tracking on IVB+, so there's
no point in writing IVB_FBC_RT_BASE.

v2: Drop the IVB_FBC_RT_BASE write too
v3: Move the SNB stuff elsewhere, leaving only IVB+ here

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-01-23 16:49:08 +02:00 committed by Daniel Vetter
parent 0e5539b923
commit b339088d81
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/i915/intel_pm.c
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@ -283,8 +283,6 @@ static void gen7_enable_fbc(struct drm_crtc *crtc)
struct drm_i915_gem_object *obj = intel_fb->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
I915_WRITE(IVB_FBC_RT_BASE, i915_gem_obj_ggtt_offset(obj));
I915_WRITE(ILK_DPFC_CONTROL, DPFC_CTL_EN | DPFC_CTL_LIMIT_1X |
IVB_DPFC_CTL_FENCE_EN |
intel_crtc->plane << IVB_DPFC_CTL_PLANE_SHIFT);