1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  *
4  * (C) COPYRIGHT 2015, 2020-2021 ARM Limited. All rights reserved.
5  *
6  * This program is free software and is provided to you under the terms of the
7  * GNU General Public License version 2 as published by the Free Software
8  * Foundation, and any use by you of this program is subject to the terms
9  * of such GNU license.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, you can access it online at
18  * http://www.gnu.org/licenses/gpl-2.0.html.
19  *
20  */
21 
22 #ifndef _KBASE_SMC_H_
23 #define _KBASE_SMC_H_
24 
25 #if IS_ENABLED(CONFIG_ARM64)
26 
27 #include <mali_kbase.h>
28 
29 #define SMC_FAST_CALL (1 << 31)
30 #define SMC_64 (1 << 30)
31 
32 #define SMC_OEN_OFFSET 24
33 #define SMC_OEN_MASK (0x3F << SMC_OEN_OFFSET) /* 6 bits */
34 #define SMC_OEN_SIP (2 << SMC_OEN_OFFSET)
35 #define SMC_OEN_STD (4 << SMC_OEN_OFFSET)
36 
37 
38 /**
39   * kbase_invoke_smc_fid - Perform a secure monitor call
40   * @fid: The SMC function to call, see SMC Calling convention.
41   * @arg0: First argument to the SMC.
42   * @arg1: Second argument to the SMC.
43   * @arg2: Third argument to the SMC.
44   *
45   * See SMC Calling Convention for details.
46   *
47   * Return: the return value from the SMC.
48   */
49 u64 kbase_invoke_smc_fid(u32 fid, u64 arg0, u64 arg1, u64 arg2);
50 
51 /**
52   * kbase_invoke_smc_fid - Perform a secure monitor call
53   * @oen: Owning Entity number (SIP, STD etc).
54   * @function_number: The function number within the OEN.
55   * @smc64: use SMC64 calling convention instead of SMC32.
56   * @arg0: First argument to the SMC.
57   * @arg1: Second argument to the SMC.
58   * @arg2: Third argument to the SMC.
59   *
60   * See SMC Calling Convention for details.
61   *
62   * Return: the return value from the SMC call.
63   */
64 u64 kbase_invoke_smc(u32 oen, u16 function_number, bool smc64,
65 		u64 arg0, u64 arg1, u64 arg2);
66 
67 #endif /* CONFIG_ARM64 */
68 
69 #endif /* _KBASE_SMC_H_ */
70