/*
 * Copyright (C) 2022 Huawei Technologies Co., Ltd.
 * Decription: mailbox memory managing for sharing memory with TEE.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */
#ifndef MAILBOX_MEMPOOOL_H
#define MAILBOX_MEMPOOOL_H

#include <linux/kernel.h>
#include <linux/types.h>
#include "teek_ns_client.h"

#ifndef MAILBOX_POOL_SIZE
#define MAILBOX_POOL_SIZE SZ_4M
#endif

/* alloc options */
#define MB_FLAG_ZERO 0x1 /* set 0 after alloc page */
#define GLOBAL_UUID_LEN 17 /* first char represent global cmd */

void *mailbox_alloc(size_t size, unsigned int flag);
void mailbox_free(const void *ptr);
int mailbox_mempool_init(void);
void free_mailbox_mempool(void);
struct mb_cmd_pack *mailbox_alloc_cmd_pack(void);
void *mailbox_copy_alloc(const void *src, size_t size);
int re_register_mailbox(void);
uintptr_t mailbox_virt_to_phys(uintptr_t addr);

#endif