selftests/resctrl: Add a helper for the non-contiguous test

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The CAT non-contiguous selftests have to read the file responsible for
reporting support of non-contiguous CBMs in kernel (resctrl). Then the
test compares if that information matches what is reported by CPUID
output.

Add a generic helper function to read an unsigned number from
/sys/fs/resctrl/info/<RESOURCE>/<FILE>.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

...

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Maciej Wieczor-Retman 2024-02-16 09:35:15 +01:00 • committed by Shuah Khan

parent 5339792bd6

commit e331ac141f

2 changed files with 37 additions and 0 deletions

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tools/testing/selftests/resctrl/resctrl.h

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36

tools/testing/selftests/resctrl/resctrlfs.c

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