selftests/powerpc/pmu/: Add interface test for mmcr1_comb field

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The testcase uses event code "0x26880" to verify the settings for
different fields in Monitor Mode Control Register 1 (MMCR1). The field
include PMCxCOMB. Checks if this field are translated correctly via perf
interface to MMCR1

Add selftest for mmcr1 comb field.

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
[mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220127072012.662451-16-kjain@linux.ibm.com

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Athira Rajeev 2022-01-27 12:50:07 +05:30 • committed by Michael Ellerman

parent 6e11374b08

commit 2becea3b6a

3 changed files with 69 additions and 1 deletions

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1

tools/testing/selftests/powerpc/pmu/sampling_tests/.gitignore vendored

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3

tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

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66

tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_comb_test.c

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