Re: [PATCH v5 11/13] riscv: Add ISA extension parsing for Ziccrse

Andrew Jones
2024-08-21T14:33:45Z

On Sun, Aug 18, 2024 at 08:35:36AM GMT, Alexandre Ghiti wrote:
> Add support to parse the Ziccrse string in the riscv,isa string.
>
> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
> ---
> arch/riscv/include/asm/hwcap.h | 1 +
> arch/riscv/kernel/cpufeature.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
> index f5d53251c947..9e228b079a6d 100644
> --- a/arch/riscv/include/asm/hwcap.h
> +++ b/arch/riscv/include/asm/hwcap.h
> @@ -93,6 +93,7 @@
> #define RISCV_ISA_EXT_ZCMOP 84
> #define RISCV_ISA_EXT_ZAWRS 85
> #define RISCV_ISA_EXT_ZABHA 86
> +#define RISCV_ISA_EXT_ZICCRSE 87
>
> #define RISCV_ISA_EXT_XLINUXENVCFG 127
>
> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> index 67ebcc4c9424..ea9c255bbe3d 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -314,6 +314,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
> riscv_ext_zicbom_validate),
> __RISCV_ISA_EXT_SUPERSET_VALIDATE(zicboz, RISCV_ISA_EXT_ZICBOZ, riscv_xlinuxenvcfg_exts,
> riscv_ext_zicboz_validate),
> + __RISCV_ISA_EXT_DATA(ziccrse, RISCV_ISA_EXT_ZICCRSE),
> __RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR),
> __RISCV_ISA_EXT_DATA(zicond, RISCV_ISA_EXT_ZICOND),
> __RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR),
> --
> 2.39.2
>
>