diff options
Diffstat (limited to 'tools/testing/selftests/arm64/signal/testcases/ssve_regs.c')
| -rw-r--r-- | tools/testing/selftests/arm64/signal/testcases/ssve_regs.c | 41 |
1 files changed, 13 insertions, 28 deletions
diff --git a/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c b/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c index 3d37daafcff5..1dbca9afb13c 100644 --- a/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c +++ b/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c @@ -6,51 +6,31 @@ * set up as expected. */ +#include <kselftest.h> #include <signal.h> #include <ucontext.h> #include <sys/prctl.h> #include "test_signals_utils.h" +#include "sve_helpers.h" #include "testcases.h" static union { ucontext_t uc; char buf[1024 * 64]; } context; -static unsigned int vls[SVE_VQ_MAX]; -unsigned int nvls = 0; static bool sme_get_vls(struct tdescr *td) { - int vq, vl; + int res = sve_fill_vls(VLS_USE_SME, 1); - /* - * Enumerate up to SVE_VQ_MAX vector lengths - */ - for (vq = SVE_VQ_MAX; vq > 0; --vq) { - vl = prctl(PR_SME_SET_VL, vq * 16); - if (vl == -1) - return false; - - vl &= PR_SME_VL_LEN_MASK; + if (!res) + return true; - /* Did we find the lowest supported VL? */ - if (vq < sve_vq_from_vl(vl)) - break; - - /* Skip missing VLs */ - vq = sve_vq_from_vl(vl); - - vls[nvls++] = vl; - } + if (res == KSFT_SKIP) + td->result = KSFT_SKIP; - /* We need at least one VL */ - if (nvls < 1) { - fprintf(stderr, "Only %d VL supported\n", nvls); - return false; - } - - return true; + return false; } static void setup_ssve_regs(void) @@ -105,6 +85,11 @@ static int do_one_sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc, fprintf(stderr, "Got expected size %u and VL %d\n", head->size, ssve->vl); + if (get_svcr() != 0) { + fprintf(stderr, "Unexpected SVCR %lx\n", get_svcr()); + return 1; + } + return 0; } |