Our phys_object code can't deal with stolen memory and so blows up.
Fixing this is quite a bit of work and not worth it much for a single
page object, so just opt-out.

This is necessary prep work to enable stolen on gen2/3 platforms where
the overlay register file isn't stored in the gtt.

Cc: Chris Wilson <[email protected]>
Acked-by: Chris Wilson <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
---
 drivers/gpu/drm/i915/intel_overlay.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_overlay.c 
b/drivers/gpu/drm/i915/intel_overlay.c
index 2abb53e..9ec5a4e 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -1333,7 +1333,9 @@ void intel_setup_overlay(struct drm_device *dev)
 
        overlay->dev = dev;
 
-       reg_bo = i915_gem_object_create_stolen(dev, PAGE_SIZE);
+       reg_bo = NULL;
+       if (!OVERLAY_NEEDS_PHYSICAL(dev))
+               reg_bo = i915_gem_object_create_stolen(dev, PAGE_SIZE);
        if (reg_bo == NULL)
                reg_bo = i915_gem_alloc_object(dev, PAGE_SIZE);
        if (reg_bo == NULL)
-- 
1.8.3.2

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