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selftests/resctrl: Add vendor detection mechanism 

RESCTRL feature is supported both on Intel and AMD now. Some features
are implemented differently. Add vendor detection mechanism. Use the vendor
check where there are differences.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Babu Moger 2020-01-16 13:32:43 -08:00 committed by Shuah Khan
parent 790bf585b0
commit 53f74fbec9
2 changed files with 25 additions and 0 deletions
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1
tools/testing/selftests/resctrl/resctrl.h
View File

@ -66,6 +66,7 @@ pid_t bm_pid, ppid;
int tests_run;
char llc_occup_path[1024];
bool is_amd;
bool check_resctrlfs_support(void);
int filter_dmesg(void);

24
tools/testing/selftests/resctrl/resctrl_tests.c
View File

@ -13,6 +13,27 @@
#define BENCHMARK_ARGS 64
#define BENCHMARK_ARG_SIZE 64
bool is_amd;
void detect_amd(void)
{
FILE *inf = fopen("/proc/cpuinfo", "r");
char *res;
if (!inf)
return;
res = fgrep(inf, "vendor_id");
if (res) {
char *s = strchr(res, ':');
is_amd = s && !strcmp(s, ": AuthenticAMD\n");
free(res);
}
fclose(inf);
}
static void cmd_help(void)
{
printf("usage: resctrl_tests [-h] [-b \"benchmark_cmd [options]\"] [-t test list] [-n no_of_bits]\n");
@ -107,6 +128,9 @@ int main(int argc, char **argv)
if (geteuid() != 0)
printf("# WARNING: not running as root, tests may fail.\n");
/* Detect AMD vendor */
detect_amd();
if (has_ben) {
/* Extract benchmark command from command line. */
for (i = ben_ind; i < argc; i++) {