amdgpu_ttm_tt_userptr_needs_pages
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm)) {
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm) &&
if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm) &&
bool amdgpu_ttm_tt_userptr_needs_pages(struct ttm_tt *ttm);