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Date:   Thu, 18 Feb 2021 23:15:32 -0800 (PST)
Subject:     Re: [PATCH] RISC-V: Enable CPU Hotplug in defconfigs
In-Reply-To: <20210209054620.25005-1-anup.patel@wdc.com>
CC:     Paul Walmsley <paul.walmsley@sifive.com>, aou@eecs.berkeley.edu,
        Atish Patra <Atish.Patra@wdc.com>,
        Alistair Francis <Alistair.Francis@wdc.com>,
        anup@brainfault.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org, Anup Patel <Anup.Patel@wdc.com>
From:   Palmer Dabbelt <palmerdabbelt@google.com>
To:     Anup Patel <Anup.Patel@wdc.com>
Message-ID: <mhng-ae92ee05-1177-4e83-9385-1e513e4883d1@palmerdabbelt-glaptop>
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On Mon, 08 Feb 2021 21:46:20 PST (-0800), Anup Patel wrote:
> The CPU hotplug support has been tested on QEMU, Spike, and SiFive
> Unleashed so let's enable it by default in RV32 and RV64 defconfigs.
>
> Signed-off-by: Anup Patel <anup.patel@wdc.com>
> ---
>  arch/riscv/configs/defconfig      | 1 +
>  arch/riscv/configs/rv32_defconfig | 1 +
>  2 files changed, 2 insertions(+)
>
> diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
> index 8c3d1e451703..6c0625aa96c7 100644
> --- a/arch/riscv/configs/defconfig
> +++ b/arch/riscv/configs/defconfig
> @@ -17,6 +17,7 @@ CONFIG_BPF_SYSCALL=y
>  CONFIG_SOC_SIFIVE=y
>  CONFIG_SOC_VIRT=y
>  CONFIG_SMP=y
> +CONFIG_HOTPLUG_CPU=y
>  CONFIG_JUMP_LABEL=y
>  CONFIG_MODULES=y
>  CONFIG_MODULE_UNLOAD=y
> diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig
> index 2c2cda6cc1c5..8dd02b842fef 100644
> --- a/arch/riscv/configs/rv32_defconfig
> +++ b/arch/riscv/configs/rv32_defconfig
> @@ -18,6 +18,7 @@ CONFIG_SOC_SIFIVE=y
>  CONFIG_SOC_VIRT=y
>  CONFIG_ARCH_RV32I=y
>  CONFIG_SMP=y
> +CONFIG_HOTPLUG_CPU=y
>  CONFIG_JUMP_LABEL=y
>  CONFIG_MODULES=y
>  CONFIG_MODULE_UNLOAD=y

Thanks, this is on for-next.