Re: [PATCH v3 1/3] RISC-V: add Bitmanip/Scalar Crypto parsing from DT

Samuel Ortiz
2022-11-24T09:19:24Z

Hi,

On Mon, Jun 13, 2022 at 02:46:01AM +0800, Hongren (Zenithal) Zheng wrote:
> This patch parses Zb/Zk related string from DT and
> output them in cpuinfo
>
> One thing worth noting is that if DT provides zk,
> all zbkb, zbkc, zbkx and zkn, zkr, zkt would be enabled.
>
> Note that zk is a valid extension name and the current
> DT binding spec allows this.
>
> This patch also changes the logical id of
> existing multi-letter extensions and adds a statement
> that instead of logical id compatibility, the order
> is needed.
>
> There currently lacks a mechanism to merge them when
> producing cpuinfo. Namely if you provide a riscv,isa
> "rv64imafdc_zk_zks", the cpuinfo output would be
> "rv64imafdc_zbkb_zbkc_zbkx_zknd_zkne_zknh_zkr_zksed
> _zksh_zkt"
>
> Tested-by: Jiatai He <jiatai2021@iscas.ac.cn>
> Signed-off-by: Hongren (Zenithal) Zheng <i@zenithal.me>
FWIW, after some rebasing:

Tested-by: Samuel Ortiz <sameo@rivosinc.com>

Cheers,
Samuel.