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