drm/i915: Rework PPGTT init code
This rework will help if future platforms choose to be a bit different. Should have no functional impact. v2: Don't move around the vtable setup (Daniel) v3: Squash in the disable-by-default patch. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> (v1) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -238,7 +238,11 @@ static int i915_gem_init_aliasing_ppgtt(struct drm_device *dev)
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ppgtt->dev = dev;
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ppgtt->scratch_page_dma_addr = dev_priv->gtt.scratch_page_dma;
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ret = gen6_ppgtt_init(ppgtt);
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if (INTEL_INFO(dev)->gen < 8)
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ret = gen6_ppgtt_init(ppgtt);
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else
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BUG();
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if (ret)
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kfree(ppgtt);
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else
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