[v1, 6/6] riscv: vector: enable preemptive kernel-mode Vector to be built

[Conor Dooley]

Hey Andy,

On Sat, Jul 15, 2023 at 03:00:32PM +0000, Andy Chiu wrote:
> Add a Kconfig to let user decides whether kernel-mode Vector in a
> preemptive kernel should also run with preemption. If the config is 'N',
> then all kernel-mode Vector code are run with preemption disabled.

nit: "is run".

> 
> Signed-off-by: Andy Chiu <andy.chiu at sifive.com>
> ---
>  arch/riscv/Kconfig | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index a9e8b697fefb..da6a45ea42ec 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -500,6 +500,16 @@ config RISCV_ISA_V_DEFAULT_ENABLE
>  
>  	  If you don't know what to do here, say Y.
>  
> +config RISCV_ISA_V_PREEMPTIVE_KMV
> +	bool "Run kernel-mode Vector with kernel preemption"
> +	depends on PREEMPTION
> +	depends on RISCV_ISA_V
> +	default y
> +	help
> +	  Ordinarily the kernel disables preemption before running in-kernel
> +	  Vector code. This config frees the kernel from disabling preemption
> +	  by adding meory on demand for tracking kernel's V-context.

s/meory/memory/

This should be part of the previous patch.

Thanks,
Conor.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-riscv/attachments/20230717/205c70ca/attachment.sig>