i915_gem_object_has_iomem
!i915_gem_object_has_iomem(obj))
GEM_BUG_ON(!i915_gem_object_has_iomem(obj));
else if (i915_gem_object_has_iomem(obj) && object_has_mappable_iomem(obj))
return i915_gem_object_has_iomem(obj);
bool i915_gem_object_has_iomem(const struct drm_i915_gem_object *obj);
if (i915_gem_object_has_iomem(obj))
!i915_gem_object_has_iomem(obj))
i915_gem_object_has_iomem(obj);
!i915_gem_object_has_iomem(obj));