diff options
| author | Andrew Jones <ajones@ventanamicro.com> | 2023-02-24 17:26:27 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-03-14 21:26:04 -0700 |
| commit | 7ea5a73617e931230a46150dc7c1bbfd98f24c8e (patch) | |
| tree | 98621befd497830c7f67a5fe36a16c08ddfeb0ec /arch/riscv/include/asm/hwcap.h | |
| parent | ea20f117ab99d7c7653df656ddb795e51d9f7733 (diff) | |
RISC-V: Add Zicboz detection and block size parsing
Parse "riscv,cboz-block-size" from the DT by piggybacking on Zicbom's
riscv_init_cbom_blocksize(). Additionally check the DT for the presence
of the "zicboz" extension and, when it's present, validate the parsed
cboz block size as we do Zicbom's cbom block size with
riscv_isa_extension_check().
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230224162631.405473-5-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/hwcap.h')
| -rw-r--r-- | arch/riscv/include/asm/hwcap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index e3021b2590de..5955fbeaba86 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -42,6 +42,7 @@ #define RISCV_ISA_EXT_ZBB 30 #define RISCV_ISA_EXT_ZICBOM 31 #define RISCV_ISA_EXT_ZIHINTPAUSE 32 +#define RISCV_ISA_EXT_ZICBOZ 33 #define RISCV_ISA_EXT_MAX 64 #define RISCV_ISA_EXT_NAME_LEN_MAX 32 |