selftests/powerpc/pmu: Add selftest for PERF_TYPE_HARDWARE events valid check

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Testcase to ensure that using invalid event in generic event for
PERF_TYPE_HARDWARE will fail. Invalid generic events in power10 are:
- PERF_COUNT_HW_BUS_CYCLES
- PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
- PERF_COUNT_HW_STALLED_CYCLES_BACKEND
- PERF_COUNT_HW_REF_CPU_CYCLES

Invalid generic events in power9 are:
- PERF_COUNT_HW_BUS_CYCLES
- PERF_COUNT_HW_REF_CPU_CYCLES

Testcase does event open for valid and invalid generic events to ensure
event open works for all valid events and fails for invalid events.

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220610134113.62991-29-atrajeev@linux.vnet.ibm.com

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Athira Rajeev 2022-06-10 19:11:06 +05:30 • committed by Michael Ellerman

parent 3f1a87425f

commit 8efeedf5aa

2 changed files with 131 additions and 1 deletions

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tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile

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130

tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c

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