linux-kernel - Re: [PATCH v11 19/27] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe

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Message-ID: <CANXhq0pXT_vJxyPPGJyVoBsBesmS642JzcmP111rDdYCzkLJaw@mail.gmail.com>
Date: Fri, 14 Mar 2025 16:32:33 +0800
From: Zong Li <zong.li@...ive.com>
To: Deepak Gupta <debug@...osinc.com>
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Subject: Re: [PATCH v11 19/27] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe

On Mon, Mar 10, 2025 at 11:42 PM Deepak Gupta <debug@...osinc.com> wrote:
>
> Adding enumeration of zicfilp and zicfiss extensions in hwprobe syscall.
>
> Signed-off-by: Deepak Gupta <debug@...osinc.com>
> ---
>  arch/riscv/include/uapi/asm/hwprobe.h | 2 ++
>  arch/riscv/kernel/sys_hwprobe.c       | 2 ++
>  2 files changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h
> index c3c1cc951cb9..c1b537b50158 100644
> --- a/arch/riscv/include/uapi/asm/hwprobe.h
> +++ b/arch/riscv/include/uapi/asm/hwprobe.h
> @@ -73,6 +73,8 @@ struct riscv_hwprobe {
>  #define                RISCV_HWPROBE_EXT_ZCMOP         (1ULL << 47)
>  #define                RISCV_HWPROBE_EXT_ZAWRS         (1ULL << 48)
>  #define                RISCV_HWPROBE_EXT_SUPM          (1ULL << 49)
> +#define                RISCV_HWPROBE_EXT_ZICFILP       (1ULL << 50)
> +#define                RISCV_HWPROBE_EXT_ZICFISS       (1ULL << 51)
>  #define RISCV_HWPROBE_KEY_CPUPERF_0    5
>  #define                RISCV_HWPROBE_MISALIGNED_UNKNOWN        (0 << 0)
>  #define                RISCV_HWPROBE_MISALIGNED_EMULATED       (1 << 0)
> diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c
> index bcd3b816306c..d802ff707913 100644
> --- a/arch/riscv/kernel/sys_hwprobe.c
> +++ b/arch/riscv/kernel/sys_hwprobe.c
> @@ -108,6 +108,8 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair,
>                 EXT_KEY(ZCB);
>                 EXT_KEY(ZCMOP);
>                 EXT_KEY(ZICBOZ);
> +               EXT_KEY(ZICFILP);
> +               EXT_KEY(ZICFISS);
>                 EXT_KEY(ZICOND);
>                 EXT_KEY(ZIHINTNTL);
>                 EXT_KEY(ZIHINTPAUSE);
>
LGTM.

Reviewed-by: Zong Li <zong.li@...ive.com>
> --
> 2.34.1
>
>
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