diff options
| author | Mark Brown <broonie@kernel.org> | 2021-08-03 16:04:48 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2021-08-03 17:20:05 +0200 |
| commit | b43ab36a6d86f6c693f5919ee2cf25c543446213 (patch) | |
| tree | d911ba38762a098d0bfecf436ae90305a4745668 /tools/testing | |
| parent | kselftest/arm64: Provide a helper binary and "library" for SVE RDVL (diff) | |
| download | linux-b43ab36a6d86f6c693f5919ee2cf25c543446213.tar.xz linux-b43ab36a6d86f6c693f5919ee2cf25c543446213.zip | |
kselftest/arm64: Validate vector lengths are set in sve-probe-vls
Currently sve-probe-vls does not verify that the vector lengths reported
by the prctl() interface are actually what is reported by the architecture,
use the rdvl_sve() helper to validate this.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Link: https://lore.kernel.org/r/20210803140450.46624-3-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/arm64/fp/Makefile | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/arm64/fp/sve-probe-vls.c | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile index ed62e7003b96..fa3a0167db2d 100644 --- a/tools/testing/selftests/arm64/fp/Makefile +++ b/tools/testing/selftests/arm64/fp/Makefile @@ -13,7 +13,7 @@ fpsimd-test: fpsimd-test.o $(CC) -nostdlib $^ -o $@ rdvl-sve: rdvl-sve.o rdvl.o sve-ptrace: sve-ptrace.o sve-ptrace-asm.o -sve-probe-vls: sve-probe-vls.o +sve-probe-vls: sve-probe-vls.o rdvl.o sve-test: sve-test.o $(CC) -nostdlib $^ -o $@ vlset: vlset.o diff --git a/tools/testing/selftests/arm64/fp/sve-probe-vls.c b/tools/testing/selftests/arm64/fp/sve-probe-vls.c index 76e138525d55..a24eca7a4ecb 100644 --- a/tools/testing/selftests/arm64/fp/sve-probe-vls.c +++ b/tools/testing/selftests/arm64/fp/sve-probe-vls.c @@ -13,6 +13,7 @@ #include <asm/sigcontext.h> #include "../../kselftest.h" +#include "rdvl.h" int main(int argc, char **argv) { @@ -38,6 +39,10 @@ int main(int argc, char **argv) vl &= PR_SVE_VL_LEN_MASK; + if (rdvl_sve() != vl) + ksft_exit_fail_msg("PR_SVE_SET_VL reports %d, RDVL %d\n", + vl, rdvl_sve()); + if (!sve_vl_valid(vl)) ksft_exit_fail_msg("VL %d invalid\n", vl); vq = sve_vq_from_vl(vl); |