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Subject[PATCH v3 0/3] Tidy user rdpmc documentation and testing
From
libperf's perf_mmap__read_self and the addition of arm64 support mean
that the perf_event.h and the rdpmc perf test have become
stale. Refresh the documentation in perf_event.h, remove the x86 rdpmc
test and port the libperf test as a non-architecture specific test.

A comment is added to perf_event.h to avoid a divide by zero when
scaling counts if the running time is 0. This was previously discussed
in this thread:
https://lore.kernel.org/lkml/CAP-5=fVRdqvswtyQMg5cB+ntTGda+SAYskjTQednEH-AeZo13g@mail.gmail.com/

v3. Incorporates fixes from Rob Herring <robh@kernel.org> to make the
perf_event.h comments better. It drops the already merged sanitizer fix.
v2. Alters the skip in test_stat_user_read for open to always be a
skip as perf_event_open may fail with EACCES (permissions), ENOSYS
(not supported) and ENOENT (hypervisor). Adds Rob Herring's
acked-by on patch 3.

Ian Rogers (3):
perf: Align user space counter reading with code
perf test: Remove x86 rdpmc test
perf test: Add user space counter reading tests

include/uapi/linux/perf_event.h | 35 +++--
tools/include/uapi/linux/perf_event.h | 35 +++--
tools/perf/arch/x86/tests/Build | 1 -
tools/perf/arch/x86/tests/arch-tests.c | 2 -
tools/perf/arch/x86/tests/rdpmc.c | 182 -------------------------
tools/perf/tests/mmap-basic.c | 127 ++++++++++++++++-
6 files changed, 170 insertions(+), 212 deletions(-)
delete mode 100644 tools/perf/arch/x86/tests/rdpmc.c

--
2.37.0.170.g444d1eabd0-goog

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