dmabuf_heap_alloc
ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
ret = dmabuf_heap_alloc(0, ONE_MEG, 0x111111, &dmabuf_fd);
ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0x111111, &dmabuf_fd);