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| author | Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com> | 2024-02-16 09:35:15 +0100 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2024-02-23 15:19:09 -0700 |
| commit | e331ac141f1df6d151d24e60ff16e93ec075509e (patch) | |
| tree | a71c47954859aa43cafb27031e80cc7f3fea7c47 /tools/testing/selftests/resctrl/resctrl.h | |
| parent | 5339792bd64bd1605d3d51f8e52e94dfc385959b (diff) | |
selftests/resctrl: Add a helper for the non-contiguous test
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>
Diffstat (limited to 'tools/testing/selftests/resctrl/resctrl.h')
| -rw-r--r-- | tools/testing/selftests/resctrl/resctrl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index a1462029998e..5116ea082d03 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -162,6 +162,7 @@ unsigned int count_contiguous_bits(unsigned long val, unsigned int *start); int get_full_cbm(const char *cache_type, unsigned long *mask); int get_mask_no_shareable(const char *cache_type, unsigned long *mask); int get_cache_size(int cpu_no, const char *cache_type, unsigned long *cache_size); +int resource_info_unsigned_get(const char *resource, const char *filename, unsigned int *val); void ctrlc_handler(int signum, siginfo_t *info, void *ptr); int signal_handler_register(void); void signal_handler_unregister(void); |