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