linux-kernel - Re: [PATCH v3 2/4] RISC-V: Support CPUID for risc-v in perf

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Date:   Thu, 9 Jun 2022 14:54:11 +0100
From:   Will Deacon <will@...nel.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Genevieve Chan <genevieve.chan@...rfivetech.com>,
        João Mário Domingos 
        <joao.mario@...nico.ulisboa.pt>,
        Nikita Shubin <n.shubin@...ro.com>,
        Atish Patra <atishp@...shpatra.org>,
        Anup Patel <anup@...infault.org>,
        Mark Rutland <mark.rutland@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:RISC-V PMU DRIVERS" <linux-riscv@...ts.infradead.org>,
        "moderated list:ARM PMU PROFILING AND DEBUGGING" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:PERFORMANCE EVENTS SUBSYSTEM" 
        <linux-perf-users@...r.kernel.org>
Subject: Re: [PATCH v3 2/4] RISC-V: Support CPUID for risc-v in perf

On Tue, Jun 07, 2022 at 04:16:45PM +0300, Nikita Shubin wrote:
> From: João Mário Domingos <joao.mario@...nico.ulisboa.pt>
> 
> This patch creates the header.c file for the risc-v architecture and introduces support for
> PMU identification through sysfs.
> It is now possible to configure pmu-events in risc-v.
> 
> Depends on patch [1], that introduces the id sysfs file.
> 
> Signed-off-by: João Mário Domingos <joao.mario@...nico.ulisboa.pt>
> [Nikita: replaced soc:pmu to riscv-pmu/id]
> Signed-off-by: Nikita Shubin <n.shubin@...ro.com>
> Tested-by: Nikita Shubin <n.shubin@...ro.com>
> ---
> v2->v3:
> - Change 'soc/soc:pmu/id' to 'riscv-pmu/id'
> ---
>  drivers/perf/riscv_pmu.c            | 18 ++++++++
>  tools/perf/arch/riscv/util/Build    |  1 +
>  tools/perf/arch/riscv/util/header.c | 66 +++++++++++++++++++++++++++++

You will need to separate out the kernel changes from the tooling changes in
order to get this merged.

Thanks,

Will