150a3056aSZelalem Aweke /* 2*319fb084SSoby 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) 3350a3056aSZelalem Aweke 34*319fb084SSoby Mathew /* RMI handled by TRP */ 35*319fb084SSoby Mathew #define RMI_FNUM_VERSION_REQ U(0x150) 36*319fb084SSoby Mathew 37*319fb084SSoby Mathew #define RMI_FNUM_GRANULE_DELEGATE U(0x151) 38*319fb084SSoby Mathew #define RMI_FNUM_GRANULE_UNDELEGATE U(0x152) 39*319fb084SSoby Mathew 40*319fb084SSoby Mathew #define RMI_RMM_REQ_VERSION RMM_FID(SMC_64, RMI_FNUM_VERSION_REQ) 41*319fb084SSoby Mathew 42*319fb084SSoby Mathew #define RMI_RMM_GRANULE_DELEGATE RMM_FID(SMC_64, \ 43*319fb084SSoby Mathew RMI_FNUM_GRANULE_DELEGATE) 44*319fb084SSoby Mathew #define RMI_RMM_GRANULE_UNDELEGATE RMM_FID(SMC_64, \ 45*319fb084SSoby Mathew RMI_FNUM_GRANULE_UNDELEGATE) 46*319fb084SSoby Mathew 4750a3056aSZelalem Aweke /* Definitions for RMI VERSION */ 4850a3056aSZelalem Aweke #define RMI_ABI_VERSION_MAJOR U(0x0) 4950a3056aSZelalem Aweke #define RMI_ABI_VERSION_MINOR U(0x0) 5050a3056aSZelalem Aweke #define RMI_ABI_VERSION ((RMI_ABI_VERSION_MAJOR << 16) | \ 5150a3056aSZelalem Aweke RMI_ABI_VERSION_MINOR) 5250a3056aSZelalem Aweke 5350a3056aSZelalem Aweke /* Helper to issue SMC calls to BL31 */ 5450a3056aSZelalem Aweke uint64_t trp_smc(trp_args_t *); 5550a3056aSZelalem Aweke 5650a3056aSZelalem Aweke /* The main function to executed only by Primary CPU */ 5750a3056aSZelalem Aweke void trp_main(void); 5850a3056aSZelalem Aweke 5950a3056aSZelalem Aweke /* Setup TRP. Executed only by Primary CPU */ 6050a3056aSZelalem Aweke void trp_setup(void); 6150a3056aSZelalem Aweke 6250a3056aSZelalem Aweke #endif /* __ASSEMBLER__ */ 6350a3056aSZelalem Aweke #endif /* TRP_PRIVATE_H */ 64