| Message ID | 20210728163318.51492-3-broonie@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | kselftest/arm64: Vector length configuration tests | expand |
On Wed, Jul 28, 2021 at 05:33:16PM +0100, Mark Brown wrote: > 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> > --- > tools/testing/selftests/arm64/fp/Makefile | 2 +- > tools/testing/selftests/arm64/fp/sve-probe-vls.c | 5 +++++ > 2 files changed, 6 insertions(+), 1 deletion(-) > > 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); > -- > 2.20.1 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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);
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> --- tools/testing/selftests/arm64/fp/Makefile | 2 +- tools/testing/selftests/arm64/fp/sve-probe-vls.c | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-)