[PATCH v2 2/2] riscv: add HARDLOCKUP_DETECTOR_PERF support

Doug Anderson dianders at chromium.org
Thu Sep 25 12:59:35 PDT 2025


Hi,

On Thu, Sep 25, 2025 at 1:48 AM Yunhui Cui <cuiyunhui at bytedance.com> wrote:
>
> Enable the HARDLOCKUP_DETECTOR_PERF function based on RISC-V SSE.
>
> Signed-off-by: Yunhui Cui <cuiyunhui at bytedance.com>
> ---
>  arch/riscv/Kconfig           |  3 +++
>  drivers/perf/riscv_pmu_sbi.c | 10 ++++++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index badbb2b366946..bb4e8c5a18717 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -186,6 +186,9 @@ config RISCV
>         select HAVE_PAGE_SIZE_4KB
>         select HAVE_PCI
>         select HAVE_PERF_EVENTS
> +       select PERF_EVENTS

I don't think you want to select this, do you? Just depend on it?

Other than that, this looks good to me.


-Doug



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