diff options
| author | Mark Brown <broonie@kernel.org> | 2023-12-05 14:24:44 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-12-11 12:02:00 +0000 |
| commit | 48f7ab21f731f5a02ec34a4b83ae88c4a41d6a10 (patch) | |
| tree | 40838f0f3821a7e39d229dc9600aafa240bf69e3 /tools/testing/selftests/arm64/fp/sve-test.S | |
| parent | 33c1a7785a41216ec44d0fadc1890103e2db88b0 (diff) | |
kselftest/arm64: Log SVCR when the SME tests barf
On failure we log the actual and expected value of the register we detect
a mismatch in. For SME one obvious potential source of corruption would be
if we had corrupted SVCR since changes in streaming mode will reset the
register values, log the value to aid in understanding issues.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20231205-arm64-kselftest-log-svcr-v1-1-b77abd9ee7f3@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/testing/selftests/arm64/fp/sve-test.S')
| -rw-r--r-- | tools/testing/selftests/arm64/fp/sve-test.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/fp/sve-test.S b/tools/testing/selftests/arm64/fp/sve-test.S index 547d077e3517..fff60e2a25ad 100644 --- a/tools/testing/selftests/arm64/fp/sve-test.S +++ b/tools/testing/selftests/arm64/fp/sve-test.S @@ -515,6 +515,10 @@ function barf mov x11, x1 // actual data mov x12, x2 // data size +#ifdef SSVE + mrs x13, S3_3_C4_C2_2 +#endif + puts "Mismatch: PID=" mov x0, x20 bl putdec @@ -534,6 +538,12 @@ function barf bl dumphex puts "]\n" +#ifdef SSVE + puts "\tSVCR: " + mov x0, x13 + bl putdecn +#endif + mov x8, #__NR_getpid svc #0 // fpsimd.c acitivty log dump hack |