msm_gem_pin_vma_locked
ret = msm_gem_pin_vma_locked(obj, vma);
int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct drm_gpuva *vma);
ret = msm_gem_pin_vma_locked(obj, vma);
ret = msm_gem_pin_vma_locked(obj, vma);