1/*
2 * Copyright (c) 2012-2022 Huawei Technologies Co., Ltd.
3 * Description: memory init, register for mailbox pool.
4 *
5 * This software is licensed under the terms of the GNU General Public
6 * License version 2, as published by the Free Software Foundation, and
7 * may be copied, distributed, and modified under those terms.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#include "static_ion_mem.h"
16#include <linux/slab.h>
17#include <linux/uaccess.h>
18#include <linux/module.h>
19#include <linux/mempool.h>
20#include <linux/vmalloc.h>
21#ifdef DEF_ENG
22#include <asm/io.h>
23#include <linux/mman.h>
24#endif
25#include "smc_smp.h"
26#include "teek_ns_client.h"
27#include "mailbox_mempool.h"
28#include "tc_ns_log.h"
29#include "declare_static_ion.h"
30
31/* send the ion static memory to tee */
32int tc_ns_register_ion_mem(void)
33{
34	struct tc_ns_smc_cmd smc_cmd = {{0}, 0};
35	int ret = 0;
36	struct mb_cmd_pack *mb_pack = NULL;
37	struct register_ion_mem_tag *memtag = NULL;
38
39	mb_pack = mailbox_alloc_cmd_pack();
40	if (!mb_pack) {
41		tloge("mailbox alloc failed\n");
42		return -ENOMEM;
43	}
44	memtag = mailbox_alloc(sizeof(*memtag), 0);
45	if (!memtag) {
46		mailbox_free(mb_pack);
47		return -ENOMEM;
48	}
49	set_ion_mem_info(memtag);
50	smc_cmd.cmd_type = CMD_TYPE_GLOBAL;
51	smc_cmd.cmd_id = GLOBAL_CMD_ID_REGISTER_ION_MEM;
52
53	mb_pack->operation.paramtypes = TEE_PARAM_TYPE_MEMREF_INPUT;
54	mb_pack->operation.params[0].memref.buffer =
55	mailbox_virt_to_phys((uintptr_t)(void *)memtag);
56	mb_pack->operation.buffer_h_addr[0] =
57	(uint64_t)mailbox_virt_to_phys((uintptr_t)(void *)memtag) >> ADDR_TRANS_NUM;
58	mb_pack->operation.params[0].memref.size = sizeof(*memtag);
59
60	smc_cmd.operation_phys = mailbox_virt_to_phys((uintptr_t)&mb_pack->operation);
61	smc_cmd.operation_h_phys =
62	(uint64_t)mailbox_virt_to_phys((uintptr_t)&mb_pack->operation) >> ADDR_TRANS_NUM;
63
64	if (tc_ns_smc(&smc_cmd)) {
65		ret = -EPERM;
66		tloge("send ion mem info failed\n");
67	}
68	mailbox_free(mb_pack);
69	mailbox_free(memtag);
70
71	return ret;
72}