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Message-ID: <87zgd2d6j1.fsf@all.your.base.are.belong.to.us>
Date: Mon, 07 Nov 2022 18:21:54 +0100
From: Björn Töpel <bjorn@...nel.org>
To: Chris Stillson <stillson@...osinc.com>
Cc: Greentime Hu <greentime.hu@...ive.com>,
Guo Ren <guoren@...ux.alibaba.com>,
Vincent Chen <vincent.chen@...ive.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>, Guo Ren <guoren@...nel.org>,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v12 04/17] riscv: Add vector feature to compile
[Cropping the huge Cc:-list.]
Chris Stillson <stillson@...osinc.com> writes:
> From: Guo Ren <guoren@...ux.alibaba.com>
>
> This patch adds a new config option which could enable assembler's
> vector feature.
>
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Co-developed-by: Greentime Hu <greentime.hu@...ive.com>
> Signed-off-by: Greentime Hu <greentime.hu@...ive.com>
> ---
> arch/riscv/Kconfig | 15 +++++++++++++--
> arch/riscv/Makefile | 1 +
> 2 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index ed66c31e4655..e294d85bfb7d 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -432,7 +432,17 @@ config FPU
>
> If you don't know what to do here, say Y.
>
> -endmenu # "Platform type"
> +config VECTOR
> + bool "VECTOR support"
> + depends on GCC_VERSION >= 120000 || CLANG_VERSION >= 130000
> + default n
> + help
> + Say N here if you want to disable all vector related procedure
> + in the kernel.
> +
> + If you don't know what to do here, say Y.
> +
> +endmenu
"VECTOR" is not really consistent to how the other configs are named;
RISCV_ISA_V, RISCV_ISA_VECTOR, RISCV_VECTOR?
Björn
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