Re: [PATCH v4 0/2] perf header: Support HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS

[Jin, Yao]

Hi Jiri,

On 5/16/2021 5:18 AM, Jiri Olsa wrote:
> On Fri, May 14, 2021 at 08:29:46PM +0800, Jin Yao wrote:
> > AlderLake uses a hybrid architecture utilizing Golden Cove cores
> > (core cpu) and Gracemont cores (atom cpu). It would be useful to let user
> > know the hybrid topology, the HYBRID_TOPOLOGY feature in header indicates
> > which cpus are core cpus, and which cpus are atom cpus.
> >
> > On hybrid platform, it may have several cpu pmus, such as, "cpu_core" and
> > "cpu_atom". The HYBRID_CPU_PMU_CAPS feature in perf header is created to
> > support multiple cpu pmus.
> >
> > v4:
> > ---
> > - Only minor update in '[PATCH v4 2/2] perf header: Support HYBRID_CPU_PMU_CAPS feature'.
> >    1. Directly return process_per_cpu_pmu_caps() in process_cpu_pmu_caps.
> >       Remove the variable 'ret'.
> >    2. Set 'ret = -1' if (!n->pmu_name) in process_hybrid_cpu_pmu_caps().
> Acked-by: Jiri Olsa<jolsa@xxxxxxxxxx>
>
> thanks,
> jirka

Thanks so much!

I have some followup patches which depend on this patchset. I will post them after this patchset is 
applied.

Thanks
Jin Yao