On Wed, Dec 20, 2023 at 04:57:20PM +0100, Clément Léger wrote:
> Add parsing for Zacas ISA extension which was ratified recently in the
> riscv-zacas manual.
>
> Signed-off-by: Clément Léger <cleger@xxxxxxxxxxxx>
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Cheers,
Conor.
> ---
> 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 3b31efe2f716..34f86424d743 100644
> --- a/arch/riscv/include/asm/hwcap.h
> +++ b/arch/riscv/include/asm/hwcap.h
> @@ -85,6 +85,7 @@
> #define RISCV_ISA_EXT_ZVFHMIN 70
> #define RISCV_ISA_EXT_ZFA 71
> #define RISCV_ISA_EXT_ZTSO 72
> +#define RISCV_ISA_EXT_ZACAS 73
>
> #define RISCV_ISA_EXT_MAX 128
> #define RISCV_ISA_EXT_INVALID U32_MAX
> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> index 3eb48a0eecb3..9a9d915b5bb2 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -259,6 +259,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
> __RISCV_ISA_EXT_DATA(zihintntl, RISCV_ISA_EXT_ZIHINTNTL),
> __RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE),
> __RISCV_ISA_EXT_DATA(zihpm, RISCV_ISA_EXT_ZIHPM),
> + __RISCV_ISA_EXT_DATA(zacas, RISCV_ISA_EXT_ZACAS),
> __RISCV_ISA_EXT_DATA(zfa, RISCV_ISA_EXT_ZFA),
> __RISCV_ISA_EXT_DATA(zfh, RISCV_ISA_EXT_ZFH),
> __RISCV_ISA_EXT_DATA(zfhmin, RISCV_ISA_EXT_ZFHMIN),
> --
> 2.43.0
>
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