blob: 923139007c7cc413c8eb93d23fd3b3f5fa335633 [file] [log] [blame]
/*
* Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef TRP_PRIVATE_H
#define TRP_PRIVATE_H
/* Definitions to help the assembler access the SMC/ERET args structure */
#define TRP_ARGS_SIZE TRP_ARGS_END
#define TRP_ARG0 0x0
#define TRP_ARG1 0x8
#define TRP_ARG2 0x10
#define TRP_ARG3 0x18
#define TRP_ARG4 0x20
#define TRP_ARG5 0x28
#define TRP_ARG6 0x30
#define TRP_ARG7 0x38
#define TRP_ARGS_END 0x40
#ifndef __ASSEMBLER__
#include <stdint.h>
/* Data structure to hold SMC arguments */
typedef struct trp_args {
uint64_t regs[TRP_ARGS_END >> 3];
} __aligned(CACHE_WRITEBACK_GRANULE) trp_args_t;
#define write_trp_arg(args, offset, val) (((args)->regs[offset >> 3]) \
= val)
/* Definitions for RMI VERSION */
#define RMI_ABI_VERSION_MAJOR U(0x0)
#define RMI_ABI_VERSION_MINOR U(0x0)
#define RMI_ABI_VERSION ((RMI_ABI_VERSION_MAJOR << 16) | \
RMI_ABI_VERSION_MINOR)
/* Helper to issue SMC calls to BL31 */
uint64_t trp_smc(trp_args_t *);
/* The main function to executed only by Primary CPU */
void trp_main(void);
/* Setup TRP. Executed only by Primary CPU */
void trp_setup(void);
#endif /* __ASSEMBLER__ */
#endif /* TRP_PRIVATE_H */