1 /*
2  * Copyright (c) 2022, Arm Limited. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef TRP_HELPERS_H
8 #define TRP_HELPERS_H
9 
10 /* Definitions to help the assembler access the SMC/ERET args structure */
11 #define TRP_ARGS_SIZE		TRP_ARGS_END
12 #define TRP_ARG0		0x0
13 #define TRP_ARG1		0x8
14 #define TRP_ARG2		0x10
15 #define TRP_ARG3		0x18
16 #define TRP_ARG4		0x20
17 #define TRP_ARG5		0x28
18 #define TRP_ARG6		0x30
19 #define TRP_ARG7		0x38
20 #define TRP_ARGS_END		0x40
21 
22 #ifndef __ASSEMBLER__
23 
24 #include <platform_def.h>
25 
26 /* Data structure to hold SMC arguments */
27 typedef struct trp_args {
28 	uint64_t regs[TRP_ARGS_END >> 3];
29 } __aligned(CACHE_WRITEBACK_GRANULE) trp_args_t;
30 
31 trp_args_t *set_smc_args(uint64_t arg0,
32 			 uint64_t arg1,
33 			 uint64_t arg2,
34 			 uint64_t arg3,
35 			 uint64_t arg4,
36 			 uint64_t arg5,
37 			 uint64_t arg6,
38 			 uint64_t arg7);
39 
40 __dead2 void trp_boot_abort(uint64_t err);
41 
42 #endif /* __ASSEMBLER __ */
43 #endif /* TRP_HELPERS_H */
44