diff options
Diffstat (limited to 'src/arch/arm64/include/armv8')
| -rw-r--r-- | src/arch/arm64/include/armv8/arch/smc.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/arch/arm64/include/armv8/arch/smc.h b/src/arch/arm64/include/armv8/arch/smc.h new file mode 100644 index 0000000000..2e7cc8a3c2 --- /dev/null +++ b/src/arch/arm64/include/armv8/arch/smc.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef ARM_ARM64_SMC_H +#define ARM_ARM64_SMC_H + +#include <types.h> + +uint64_t smc(uint32_t function_id, uint64_t arg1, uint64_t arg2, uint64_t arg3, + uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7); + +#define smc_call0(function_id) smc(function_id, 0, 0, 0, 0, 0, 0, 0) +#define smc_call1(function_id, a1) smc(function_id, a1, 0, 0, 0, 0, 0, 0) +#define smc_call2(function_id, a1, a2) smc(function_id, a1, a2, 0, 0, 0, 0, 0) +#define smc_call3(function_id, a1, a2, a3) smc(function_id, a1, a2, a3, 0, 0, 0, 0) + +/* Documented in https://developer.arm.com/documentation/den0022/ */ +enum psci_return_values { + PSCI_SUCCESS = 0, + PSCI_NOT_SUPPORTED = -1, + PSCI_INVALID_PARAMETERS = -2, + PSCI_DENIED = -3, + PSCI_ALREADY_ON = -4, + PSCI_ON_PENDING = -5, + PSCI_INTERNAL_FAILURE = -6, + PSCI_NOT_PRESENT = -7, + PSCI_DISABLED = -8, + PSCI_INVALID_ADDRESS = -9, +}; + +/* PSCI functions */ +#define PSCI_VERSION 0x84000000 +#define PSCI_FEATURES 0x8400000a + +/* Documented in https://developer.arm.com/documentation/den0028/ */ +enum smccc_return_values { + SMC_SUCCESS = 0, + SMC_NOT_SUPPORTED = -1, + SMC_NOT_REQUIRED = -2, + SMC_INVALID_PARAMETER = -3, +}; + +/* SMCCC functions */ +#define SMCCC_VERSION 0x80000000 +#define SMCCC_ARCH_FEATURES 0x80000001 +#define SMCCC_ARCH_SOC_ID 0x80000002 +#define SMCCC_GET_SOC_VERSION 0 +#define SMCCC_GET_SOC_REVISION 1 + +uint8_t smccc_supports_arch_soc_id(void); +enum cb_err smccc_arch_soc_id(uint32_t *jep106code, uint32_t *soc_revision); + +#endif /* ARM_ARM64_SMC_H */ |