diff options
| author | Xiaochen Shen <shenxiaochen@open-hieco.net> | 2025-12-17 11:04:56 +0800 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2026-01-09 16:49:01 -0700 |
| commit | 86063a2568b8f2eeb68da1411b320c0ff778f852 (patch) | |
| tree | 80f46132e7b29584a2cd03338bcbbf3a3eb6e453 /tools/testing/selftests/resctrl | |
| parent | 367f931e6476747edbde4e7c7b95fc5d5b724934 (diff) | |
selftests/resctrl: Fix non-contiguous CBM check for Hygon
The resctrl selftest currently fails on Hygon CPUs that always supports
non-contiguous CBM, printing the error:
"# Hardware and kernel differ on non-contiguous CBM support!"
This occurs because the arch_supports_noncont_cat() function lacks
vendor detection for Hygon CPUs, preventing proper identification of
their non-contiguous CBM capability.
Fix this by adding Hygon vendor ID detection to
arch_supports_noncont_cat().
Link: https://lore.kernel.org/r/20251217030456.3834956-5-shenxiaochen@open-hieco.net
Signed-off-by: Xiaochen Shen <shenxiaochen@open-hieco.net>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/resctrl')
| -rw-r--r-- | tools/testing/selftests/resctrl/cat_test.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index 94cfdba5308d..f00b622c1460 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -290,8 +290,10 @@ static int cat_run_test(const struct resctrl_test *test, const struct user_param static bool arch_supports_noncont_cat(const struct resctrl_test *test) { - /* AMD always supports non-contiguous CBM. */ - if (get_vendor() == ARCH_AMD) + unsigned int vendor_id = get_vendor(); + + /* AMD and Hygon always support non-contiguous CBM. */ + if (vendor_id == ARCH_AMD || vendor_id == ARCH_HYGON) return true; #if defined(__i386__) || defined(__x86_64__) /* arch */ |