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| author | Evan Green <evan@rivosinc.com> | 2023-05-09 11:25:01 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-06-19 09:51:16 -0700 |
| commit | c6699baf10647b87b075bf6c65d25b4cd52d4830 (patch) | |
| tree | f4a721b4d217e7dce0a88f80d77a7fc360b81ffc /arch/riscv/kernel/cpu.c | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| download | linux-stable-c6699baf10647b87b075bf6c65d25b4cd52d4830.tar.gz linux-stable-c6699baf10647b87b075bf6c65d25b4cd52d4830.tar.bz2 linux-stable-c6699baf10647b87b075bf6c65d25b4cd52d4830.zip | |
RISC-V: Add Zba, Zbs extension probing
Add the Zba address bit manipulation extension and Zbs single bit
instructions extension into those the kernel is aware of and maintains
in its riscv_isa bitmap.
Signed-off-by: Evan Green <evan@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Link: https://lore.kernel.org/r/20230509182504.2997252-2-evan@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/kernel/cpu.c')
| -rw-r--r-- | arch/riscv/kernel/cpu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index c96aa56cf1c7..bd294364390d 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -184,7 +184,9 @@ static struct riscv_isa_ext_data isa_ext_arr[] = { __RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM), __RISCV_ISA_EXT_DATA(zicboz, RISCV_ISA_EXT_ZICBOZ), __RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE), + __RISCV_ISA_EXT_DATA(zba, RISCV_ISA_EXT_ZBA), __RISCV_ISA_EXT_DATA(zbb, RISCV_ISA_EXT_ZBB), + __RISCV_ISA_EXT_DATA(zbs, RISCV_ISA_EXT_ZBS), __RISCV_ISA_EXT_DATA(smaia, RISCV_ISA_EXT_SMAIA), __RISCV_ISA_EXT_DATA(ssaia, RISCV_ISA_EXT_SSAIA), __RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF), |