diff options
| author | Mark Brown <broonie@kernel.org> | 2025-10-15 18:56:38 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2025-11-17 20:11:54 +0000 |
| commit | a0245b42f881be6f0ddf678ce7a0d150362938c8 (patch) | |
| tree | e178e4606767a05784a8dd9b5d18c2eaa2c01d21 | |
| parent | eb9df6d69a96717fa9320c8d2be8e0033695f353 (diff) | |
kselftest/arm64: Cover disabling streaming mode without SVE in fp-ptrace
On a system which support SME but not SVE we can now disable streaming mode
via ptrace by writing FPSIMD formatted data through NT_ARM_SVE with a VL of
0. Extend fp-ptrace to cover rather than skip these cases, relax the check
for SVE writes of FPSIMD format data to not skip if SME is supported and
accept 0 as the VL when performing the ptrace write.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | tools/testing/selftests/arm64/fp/fp-ptrace.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace.c b/tools/testing/selftests/arm64/fp/fp-ptrace.c index a85c19e9524e..0114108ab25f 100644 --- a/tools/testing/selftests/arm64/fp/fp-ptrace.c +++ b/tools/testing/selftests/arm64/fp/fp-ptrace.c @@ -1071,7 +1071,7 @@ static bool sve_write_supported(struct test_config *config) static bool sve_write_fpsimd_supported(struct test_config *config) { - if (!sve_supported()) + if (!sve_supported() && !sme_supported()) return false; if ((config->svcr_in & SVCR_ZA) != (config->svcr_expected & SVCR_ZA)) @@ -1231,9 +1231,6 @@ static void sve_write_fpsimd(pid_t child, struct test_config *config) vl = vl_expected(config); vq = __sve_vq_from_vl(vl); - if (!vl) - return; - iov.iov_len = SVE_PT_SIZE(vq, SVE_PT_REGS_FPSIMD); iov.iov_base = malloc(iov.iov_len); if (!iov.iov_base) { |