150a3056aSZelalem Aweke /* 2319fb084SSoby Mathew * Copyright (c) 2021-2022, Arm Limited and Contributors. All rights reserved. 350a3056aSZelalem Aweke * 450a3056aSZelalem Aweke * SPDX-License-Identifier: BSD-3-Clause 550a3056aSZelalem Aweke */ 650a3056aSZelalem Aweke 750a3056aSZelalem Aweke #ifndef TRP_PRIVATE_H 850a3056aSZelalem Aweke #define TRP_PRIVATE_H 950a3056aSZelalem Aweke 1050a3056aSZelalem Aweke /* Definitions to help the assembler access the SMC/ERET args structure */ 1150a3056aSZelalem Aweke #define TRP_ARGS_SIZE TRP_ARGS_END 1250a3056aSZelalem Aweke #define TRP_ARG0 0x0 1350a3056aSZelalem Aweke #define TRP_ARG1 0x8 1450a3056aSZelalem Aweke #define TRP_ARG2 0x10 1550a3056aSZelalem Aweke #define TRP_ARG3 0x18 1650a3056aSZelalem Aweke #define TRP_ARG4 0x20 1750a3056aSZelalem Aweke #define TRP_ARG5 0x28 1850a3056aSZelalem Aweke #define TRP_ARG6 0x30 1950a3056aSZelalem Aweke #define TRP_ARG7 0x38 2050a3056aSZelalem Aweke #define TRP_ARGS_END 0x40 2150a3056aSZelalem Aweke 2250a3056aSZelalem Aweke #ifndef __ASSEMBLER__ 2350a3056aSZelalem Aweke 2450a3056aSZelalem Aweke #include <stdint.h> 2550a3056aSZelalem Aweke 2650a3056aSZelalem Aweke /* Data structure to hold SMC arguments */ 2750a3056aSZelalem Aweke typedef struct trp_args { 2850a3056aSZelalem Aweke uint64_t regs[TRP_ARGS_END >> 3]; 2950a3056aSZelalem Aweke } __aligned(CACHE_WRITEBACK_GRANULE) trp_args_t; 3050a3056aSZelalem Aweke 3150a3056aSZelalem Aweke #define write_trp_arg(args, offset, val) (((args)->regs[offset >> 3]) \ 3250a3056aSZelalem Aweke = val) 33*fb00dc4aSSubhasish Ghosh /* RMI SMC64 FIDs handled by the TRP */ 34*fb00dc4aSSubhasish Ghosh #define RMI_RMM_REQ_VERSION SMC64_RMI_FID(U(0)) 35*fb00dc4aSSubhasish Ghosh #define RMI_RMM_GRANULE_DELEGATE SMC64_RMI_FID(U(1)) 36*fb00dc4aSSubhasish Ghosh #define RMI_RMM_GRANULE_UNDELEGATE SMC64_RMI_FID(U(2)) 37319fb084SSoby Mathew 3850a3056aSZelalem Aweke /* Definitions for RMI VERSION */ 3950a3056aSZelalem Aweke #define RMI_ABI_VERSION_MAJOR U(0x0) 4050a3056aSZelalem Aweke #define RMI_ABI_VERSION_MINOR U(0x0) 4150a3056aSZelalem Aweke #define RMI_ABI_VERSION ((RMI_ABI_VERSION_MAJOR << 16) | \ 4250a3056aSZelalem Aweke RMI_ABI_VERSION_MINOR) 4350a3056aSZelalem Aweke 4450a3056aSZelalem Aweke /* Helper to issue SMC calls to BL31 */ 4550a3056aSZelalem Aweke uint64_t trp_smc(trp_args_t *); 4650a3056aSZelalem Aweke 4750a3056aSZelalem Aweke /* The main function to executed only by Primary CPU */ 4850a3056aSZelalem Aweke void trp_main(void); 4950a3056aSZelalem Aweke 5050a3056aSZelalem Aweke /* Setup TRP. Executed only by Primary CPU */ 5150a3056aSZelalem Aweke void trp_setup(void); 5250a3056aSZelalem Aweke 5350a3056aSZelalem Aweke #endif /* __ASSEMBLER__ */ 5450a3056aSZelalem Aweke #endif /* TRP_PRIVATE_H */ 55