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kselftest/arm64: Cover ZT in the FP stress test

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Hook up the newly added zt-test program in the FPSIMD stress tests, start
a copy per CPU when SME2 is supported.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-15-f2fa0aef982f@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Mark Brown 2023-01-16 16:04:50 +00:00 committed by Catalin Marinas
parent 1c07425e90
commit f63a9f15b2
1 changed files with 27 additions and 2 deletions
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29
tools/testing/selftests/arm64/fp/fp-stress.c
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@ -370,6 +370,19 @@ static void start_za(struct child_data *child, int vl, int cpu)
ksft_print_msg("Started %s\n", child->name);
}
static void start_zt(struct child_data *child, int cpu)
{
int ret;
ret = asprintf(&child->name, "ZT-%d", cpu);
if (ret == -1)
ksft_exit_fail_msg("asprintf() failed\n");
child_start(child, "./zt-test");
ksft_print_msg("Started %s\n", child->name);
}
static void probe_vls(int vls[], int *vl_count, int set_vl)
{
unsigned int vq;
@ -426,6 +439,7 @@ int main(int argc, char **argv)
bool all_children_started = false;
int seen_children;
int sve_vls[MAX_VLS], sme_vls[MAX_VLS];
bool have_sme2;
struct sigaction sa;
while ((c = getopt_long(argc, argv, "t:", options, NULL)) != -1) {
@ -458,6 +472,13 @@ int main(int argc, char **argv)
sme_vl_count = 0;
}
if (getauxval(AT_HWCAP2) & HWCAP2_SME2) {
tests += cpus;
have_sme2 = true;
} else {
have_sme2 = false;
}
/* Force context switching if we only have FPSIMD */
if (!sve_vl_count && !sme_vl_count)
fpsimd_per_cpu = 2;
@ -468,8 +489,9 @@ int main(int argc, char **argv)
ksft_print_header();
ksft_set_plan(tests);
ksft_print_msg("%d CPUs, %d SVE VLs, %d SME VLs\n",
cpus, sve_vl_count, sme_vl_count);
ksft_print_msg("%d CPUs, %d SVE VLs, %d SME VLs, SME2 %s\n",
cpus, sve_vl_count, sme_vl_count,
have_sme2 ? "present" : "absent");
if (timeout > 0)
ksft_print_msg("Will run for %ds\n", timeout);
@ -527,6 +549,9 @@ int main(int argc, char **argv)
start_ssve(&children[num_children++], sme_vls[j], i);
start_za(&children[num_children++], sme_vls[j], i);
}
if (have_sme2)
start_zt(&children[num_children++], i);
}
/*