diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-08-20 19:43:39 +0200 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2020-08-25 09:34:47 +0800 |
| commit | c92b50a44b95e706b9c0c97544bd7504fe6d36e9 (patch) | |
| tree | abda21707d0a9aa1fbd1529ba89b9820dfb4eb4b /arch | |
| parent | 27cef4e4a3ba791078534fda1dbeb814bd530ad5 (diff) | |
cmd: provide command sbi
Provide a command to display information about the SBI implementation.
The output might look like:
=> sbi
SBI 0.2
OpenSBI
Extensions:
sbi_set_timer
sbi_console_putchar
sbi_console_getchar
sbi_clear_ipi
sbi_send_ipi
sbi_remote_fence_i
sbi_remote_sfence_vma
sbi_remote_sfence_vma_asid
sbi_shutdown
SBI Base Functionality
Timer Extension
IPI Extension
RFENCE Extension
Hart State Management Extension
The command can be used to construct a unit test checking that the
communication with the SEE is working.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Tested-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/include/asm/sbi.h | 2 | ||||
| -rw-r--r-- | arch/riscv/lib/sbi.c | 36 |
2 files changed, 38 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 08e1ac0c0e..53ca316180 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -115,6 +115,8 @@ void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, unsigned long asid); #endif void sbi_set_timer(uint64_t stime_value); +long sbi_get_spec_version(void); +int sbi_get_impl_id(void); int sbi_probe_extension(int ext); #endif 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. * |