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

[Reinette Chatre]

On 4/26/2024 12:06 AM, Ilpo Järvinen wrote:
> On Thu, 25 Apr 2024, Babu Moger wrote:
> 
>> 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@xxxxxxx>
>> ---
>>  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)) {
> 
> This looks independent change to me which should be put into own patch.
> 

Own patch that is separate from this series. This should go in
as a fix with
Fixes: ae638551ab64 ("selftests/resctrl: Add non-contiguous CBMs CAT test")

Reinette