From:   Nikita Shubin <nikita.shubin@maquefel.me>
Cc:     Atish Patra <atishp@rivosinc.com>, linux-riscv@lists.infradead.org,
        linux@yadro.com, Nikita Shubin <n.shubin@yadro.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Kajol Jain <kjain@linux.ibm.com>,
        Andi Kleen <ak@linux.intel.com>,
        Jin Yao <yao.jin@linux.intel.com>,
        Kan Liang <kan.liang@linux.intel.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Ian Rogers <irogers@google.com>,
        John Garry <john.garry@huawei.com>,
        Riccardo Mancini <rickyman7@gmail.com>,
        Song Liu <song@kernel.org>,
        Madhavan Srinivasan <maddy@linux.ibm.com>,
        linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC PATCH 0/1] perf tools: Add 'm' event modifier for counting
Date:   Tue, 11 Jan 2022 17:20:47 +0300
Message-Id: <20220111142054.18733-1-nikita.shubin@maquefel.me>
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From: Nikita Shubin <n.shubin@yadro.com>

This patch is a proposal to add Machine Mode modifier that is currently 
available only for RISC-V for perf tool.

We don't currently have a level that is lower than kernel, so i don't 
see we can reuse something existing for this purpose.

The exclude_machine bit seems harmless to as no one will proccess it apart 
of riscv.

Patch depends on Atish Patra PMU series:
https://lwn.net/Articles/879905/
 + some modifications to pass execlude event to SBI PMU extension

Tested with qemu.

Nikita Shubin (1):
  perf tools: Add 'm' event modifier for counting machine

 include/uapi/linux/perf_event.h        |  3 ++-
 tools/include/uapi/linux/perf_event.h  |  3 ++-
 tools/perf/Documentation/perf-list.txt |  1 +
 tools/perf/tests/parse-events.c        | 18 ++++++++++++++++++
 tools/perf/util/evsel.c                |  4 +++-
 tools/perf/util/parse-events.c         | 18 +++++++++++++-----
 tools/perf/util/parse-events.l         |  2 +-
 7 files changed, 40 insertions(+), 9 deletions(-)

-- 
2.31.1