Re: [PATCH -next v18 07/20] riscv: Introduce riscv_v_vsize to record size of Vector context

Heiko Stübner
2023-04-17T15:55:29Z

Am Freitag, 14. April 2023, 17:58:30 CEST schrieb Andy Chiu:
> From: Greentime Hu <greentime.hu@sifive.com>
>
> This patch is used to detect the size of CPU vector registers and use
> riscv_v_vsize to save the size of all the vector registers. It assumes all
> harts has the same capabilities in a SMP system. If a core detects VLENB
> that is different from the boot core, then it warns and turns off V
> support for user space.
>
> Co-developed-by: Guo Ren <guoren@linux.alibaba.com>
> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
> Co-developed-by: Vincent Chen <vincent.chen@sifive.com>
> Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
> Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
> Signed-off-by: Andy Chiu <andy.chiu@sifive.com>

Reviewed-by: Heiko Stuebner <heiko.stuebner@vrull.eu>