2021-02-09 05:52:31

by Anup Patel

Subject: [PATCH] RISC-V: Enable CPU Hotplug in defconfigs

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 <[email protected]>
---
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
--
2.25.1

2021-02-19 07:18:14

by Palmer Dabbelt

Subject: Re: [PATCH] RISC-V: Enable CPU Hotplug in defconfigs

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 <[email protected]>
> ---
> 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.

2021-02-27 03:59:50

by Anup Patel

Subject: Re: [PATCH] RISC-V: Enable CPU Hotplug in defconfigs

Hi Palmer,

On Fri, Feb 19, 2021 at 12:45 PM Palmer Dabbelt
<[email protected]> wrote:
>
> 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 <[email protected]>
> > ---
> > 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.

This patch was missed in your PR for Linux-5.12-rc1

Regards,
Anup

2021-02-27 05:39:01

by Palmer Dabbelt

Subject: Re: [PATCH] RISC-V: Enable CPU Hotplug in defconfigs

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 <[email protected]>
> ---
> 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

Sorry about that. I missed a handful of things, I'll send this out tomorrow.