diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/Kconfig | 8 | ||||
| -rw-r--r-- | arch/riscv/include/asm/sbi.h | 4 | ||||
| -rw-r--r-- | arch/riscv/lib/sbi.c | 4 |
3 files changed, 16 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 09fff05f99a..cc87da7e043 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -214,6 +214,14 @@ config SBI bool default y if RISCV_SMODE || SPL_RISCV_SMODE +config SBI_V01 + bool "SBI v0.1 support" + default y + depends on SBI + help + This config allows kernel to use SBI v0.1 APIs. This will be + deprecated in future once legacy M-mode software are no longer in use. + config SBI_IPI bool depends on SBI diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 6d3114c622d..c65104f4921 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -12,6 +12,7 @@ #include <linux/types.h> enum sbi_ext_id { +#ifdef CONFIG_SBI_V01 SBI_EXT_0_1_SET_TIMER = 0x0, SBI_EXT_0_1_CONSOLE_PUTCHAR = 0x1, SBI_EXT_0_1_CONSOLE_GETCHAR = 0x2, @@ -21,6 +22,7 @@ enum sbi_ext_id { SBI_EXT_0_1_REMOTE_SFENCE_VMA = 0x6, SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7, SBI_EXT_0_1_SHUTDOWN = 0x8, +#endif SBI_EXT_BASE = 0x10, SBI_EXT_TIME = 0x54494D45, SBI_EXT_IPI = 0x735049, @@ -75,10 +77,12 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, unsigned long arg3, unsigned long arg4, unsigned long arg5); +#ifdef CONFIG_SBI_V01 void sbi_console_putchar(int ch); int sbi_console_getchar(void); void sbi_clear_ipi(void); void sbi_shutdown(void); +#endif void sbi_set_timer(uint64_t stime_value); void sbi_send_ipi(const unsigned long *hart_mask); void sbi_remote_fence_i(const unsigned long *hart_mask); diff --git a/arch/riscv/lib/sbi.c b/arch/riscv/lib/sbi.c index 4b6a9e097ec..604a3a84feb 100644 --- a/arch/riscv/lib/sbi.c +++ b/arch/riscv/lib/sbi.c @@ -39,6 +39,8 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, return ret; } +#ifdef CONFIG_SBI_V01 + /** * sbi_console_putchar() - Writes given character to the console device. * @ch: The data to be written to the console. @@ -84,6 +86,8 @@ void sbi_shutdown(void) sbi_ecall(SBI_EXT_0_1_SHUTDOWN, 0, 0, 0, 0, 0, 0, 0); } +#endif /* CONFIG_SBI_V01 */ + /** * sbi_set_timer() - Program the timer for next timer event. * @stime_value: The value after which next timer event should fire. |