diff options
Diffstat (limited to 'arch/riscv/lib/sbi.c')
| -rw-r--r-- | arch/riscv/lib/sbi.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/riscv/lib/sbi.c b/arch/riscv/lib/sbi.c index 8fbc23839d..77845a73ca 100644 --- a/arch/riscv/lib/sbi.c +++ b/arch/riscv/lib/sbi.c @@ -54,6 +54,42 @@ void sbi_set_timer(uint64_t stime_value) } /** + * sbi_get_spec_version() - get current SBI specification version + * + * Return: version id + */ +long sbi_get_spec_version(void) +{ + struct sbiret ret; + + ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_GET_SPEC_VERSION, + 0, 0, 0, 0, 0, 0); + if (!ret.error) + if (ret.value) + return ret.value; + + return -ENOTSUPP; +} + +/** + * sbi_get_impl_id() - get SBI implementation ID + * + * Return: implementation ID + */ +int sbi_get_impl_id(void) +{ + struct sbiret ret; + + ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_GET_IMP_ID, + 0, 0, 0, 0, 0, 0); + if (!ret.error) + if (ret.value) + return ret.value; + + return -ENOTSUPP; +} + +/** * sbi_probe_extension() - Check if an SBI extension ID is supported or not. * @extid: The extension ID to be probed. * |