[PATCH v2 4/4] selftests/resctrl: Enable MBA/MBA tests on AMD

Babu Moger
2024-04-25T20:17:47Z

Enable MBA/MBM tests if UMC (Unified Memory Controller) support is
available on the system. Tests will be skipped otherwise.

Update noncont_cat_run_test to check for vendor. AMD supports
non contiguous CBM masks but does not report it via CPUID.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
tools/testing/selftests/resctrl/cat_test.c | 2 +-
tools/testing/selftests/resctrl/mba_test.c | 1 -
tools/testing/selftests/resctrl/mbm_test.c | 1 -
3 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 4cb991be8e31..b682eaf65bfd 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -314,7 +314,7 @@ static int noncont_cat_run_test(const struct resctrl_test *test,
else
return -EINVAL;

- if (sparse_masks != ((ecx >> 3) & 1)) {
+ if ((get_vendor() == ARCH_INTEL) && sparse_masks != ((ecx >> 3) & 1)) {
ksft_print_msg("CPUID output doesn't match 'sparse_masks' file content!\n");
return 1;
}
diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
index 7946e32e85c8..353054724fa7 100644
--- a/tools/testing/selftests/resctrl/mba_test.c
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -177,7 +177,6 @@ static bool mba_feature_check(const struct resctrl_test *test)
struct resctrl_test mba_test = {
.name = "MBA",
.resource = "MB",
- .vendor_specific = ARCH_INTEL,
.feature_check = mba_feature_check,
.run_test = mba_run_test,
};
diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
index d67ffa3ec63a..f2223315b5b8 100644
--- a/tools/testing/selftests/resctrl/mbm_test.c
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -147,7 +147,6 @@ static bool mbm_feature_check(const struct resctrl_test *test)
struct resctrl_test mbm_test = {
.name = "MBM",
.resource = "MB",
- .vendor_specific = ARCH_INTEL,
.feature_check = mbm_feature_check,
.run_test = mbm_run_test,
};
--
2.34.1