diff options
Diffstat (limited to 'arch/riscv/lib/sbi.c')
| -rw-r--r-- | arch/riscv/lib/sbi.c | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/arch/riscv/lib/sbi.c b/arch/riscv/lib/sbi.c index 993597e33db..8fbc23839dd 100644 --- a/arch/riscv/lib/sbi.c +++ b/arch/riscv/lib/sbi.c @@ -11,9 +11,6 @@ #include <asm/encoding.h> #include <asm/sbi.h> -/* default SBI version is 0.1 */ -unsigned long sbi_spec_version = SBI_SPEC_VERSION_DEFAULT; - struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4, @@ -56,6 +53,25 @@ void sbi_set_timer(uint64_t stime_value) #endif } +/** + * sbi_probe_extension() - Check if an SBI extension ID is supported or not. + * @extid: The extension ID to be probed. + * + * Return: Extension specific nonzero value f yes, -ENOTSUPP otherwise. + */ +int sbi_probe_extension(int extid) +{ + struct sbiret ret; + + ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_PROBE_EXT, extid, + 0, 0, 0, 0, 0); + if (!ret.error) + if (ret.value) + return ret.value; + + return -ENOTSUPP; +} + #ifdef CONFIG_SBI_V01 /** @@ -165,22 +181,4 @@ void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, (unsigned long)hart_mask, start, size, asid, 0, 0); } -/** - * sbi_probe_extension() - Check if an SBI extension ID is supported or not. - * @extid: The extension ID to be probed. - * - * Return: Extension specific nonzero value f yes, -ENOTSUPP otherwise. - */ -int sbi_probe_extension(int extid) -{ - struct sbiret ret; - - ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_PROBE_EXT, extid, - 0, 0, 0, 0, 0); - if (!ret.error) - if (ret.value) - return ret.value; - - return -ENOTSUPP; -} #endif /* CONFIG_SBI_V01 */ |