selftests/powerpc/pmu/: Add interface test for mmcr0_pmcjce field
The testcase uses event code 0x500fa ("instructions") to verify the PMCjCE bit setting in Monitor Mode Control Register 0 (MMCR0). This bit is expected to be set in MMCR0 when using Performance Monitor Counter 5 (PMC5). Checks if perf interface sets this bit correctly. 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/20220127072012.662451-13-kjain@linux.ibm.com
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