drm/i915: Disable pwrctx before unpin and free
Otherwise the chip may scribble over free memory. Signed-off-by: Kristian Høgsberg <krh@bitplanet.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
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@ -4588,6 +4588,11 @@ void intel_modeset_cleanup(struct drm_device *dev)
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dev_priv->display.disable_fbc(dev);
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dev_priv->display.disable_fbc(dev);
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if (dev_priv->pwrctx) {
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if (dev_priv->pwrctx) {
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struct drm_i915_gem_object *obj_priv;
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obj_priv = dev_priv->pwrctx->driver_private;
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I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN);
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I915_READ(PWRCTXA);
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i915_gem_object_unpin(dev_priv->pwrctx);
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i915_gem_object_unpin(dev_priv->pwrctx);
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drm_gem_object_unreference(dev_priv->pwrctx);
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drm_gem_object_unreference(dev_priv->pwrctx);
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}
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}
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