[PATCH 2/2] perf vendor events riscv: add T-HEAD C9xx JSON file

[Inochi Amaoto]

> Do c906 and c910 have same HPM events ?
>
> https://github.com/T-head-Semi/openc906/blob/main/C906_RTL_FACTORY/gen_rtl/pmu/rtl/aq_hpcp_top.v
>
> and
>
>
> https://github.com/T-head-Semi/openc910/blob/main/C910_RTL_FACTORY/gen_rtl/pmu/rtl/ct_hpcp_top.v
>
> Look different to me - am i missing something ?

Yes, they as different, but event ids are compatible. See [1] p.99 and [2] p.73.

It seems I forgot extra event index from C906. I will fix in the v2.

[1] https://github.com/T-head-Semi/openc910/blob/main/doc/%E7%8E%84%E9%93%81C910%E7%94%A8%E6%88%B7%E6%89%8B%E5%86%8C.pdf
[2] https://github.com/T-head-Semi/openc906/blob/main/doc/%E7%8E%84%E9%93%81C906%E7%94%A8%E6%88%B7%E6%89%8B%E5%86%8C.pdf