diff options
| -rw-r--r-- | arch/riscv/include/asm/sbi.h | 1 | ||||
| -rw-r--r-- | arch/riscv/lib/sbi.c | 19 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 5030892b479..bfcd2049537 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -152,6 +152,7 @@ void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, void sbi_set_timer(uint64_t stime_value); long sbi_get_spec_version(void); int sbi_get_impl_id(void); +int sbi_get_impl_version(long *version); int sbi_probe_extension(int ext); void sbi_srst_reset(unsigned long type, unsigned long reason); diff --git a/arch/riscv/lib/sbi.c b/arch/riscv/lib/sbi.c index 2b53896b8a3..d427d1b29ea 100644 --- a/arch/riscv/lib/sbi.c +++ b/arch/riscv/lib/sbi.c @@ -90,6 +90,25 @@ int sbi_get_impl_id(void) } /** + * sbi_get_impl_version() - get SBI implementation version + * + * @version: pointer to receive version + * Return: 0 on success, -ENOTSUPP otherwise + */ +int sbi_get_impl_version(long *version) +{ + struct sbiret ret; + + ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_GET_IMP_VERSION, + 0, 0, 0, 0, 0, 0); + if (ret.error) + return -ENOTSUPP; + if (version) + *version = ret.value; + return 0; +} + +/** * sbi_probe_extension() - Check if an SBI extension ID is supported or not. * @extid: The extension ID to be probed. * |