diff options
| author | Mark Brown <broonie@kernel.org> | 2023-12-05 17:24:44 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-12-11 15:02:00 +0300 |
| commit | 48f7ab21f731f5a02ec34a4b83ae88c4a41d6a10 (patch) | |
| tree | 40838f0f3821a7e39d229dc9600aafa240bf69e3 /tools/testing/selftests/arm64 | |
| parent | 33c1a7785a41216ec44d0fadc1890103e2db88b0 (diff) | |
| download | linux-48f7ab21f731f5a02ec34a4b83ae88c4a41d6a10.tar.xz | |
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')
| -rw-r--r-- | tools/testing/selftests/arm64/fp/sve-test.S | 10 | ||||
| -rw-r--r-- | tools/testing/selftests/arm64/fp/za-test.S | 6 | ||||
| -rw-r--r-- | tools/testing/selftests/arm64/fp/zt-test.S | 5 |
3 files changed, 21 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 diff --git a/tools/testing/selftests/arm64/fp/za-test.S b/tools/testing/selftests/arm64/fp/za-test.S index 9dcd70911397..095b45531640 100644 --- a/tools/testing/selftests/arm64/fp/za-test.S +++ b/tools/testing/selftests/arm64/fp/za-test.S @@ -333,6 +333,9 @@ function barf // mov w8, #__NR_exit // svc #0 // end hack + + mrs x13, S3_3_C4_C2_2 + smstop mov x10, x0 // expected data mov x11, x1 // actual data @@ -356,6 +359,9 @@ function barf mov x1, x12 bl dumphex puts "]\n" + puts "\tSVCR: " + mov x0, x13 + bl putdecn mov x8, #__NR_getpid svc #0 diff --git a/tools/testing/selftests/arm64/fp/zt-test.S b/tools/testing/selftests/arm64/fp/zt-test.S index d63286397638..b5c81e81a379 100644 --- a/tools/testing/selftests/arm64/fp/zt-test.S +++ b/tools/testing/selftests/arm64/fp/zt-test.S @@ -267,6 +267,8 @@ function barf // mov w8, #__NR_exit // svc #0 // end hack + + mrs x13, S3_3_C4_C2_2 smstop mov x10, x0 // expected data mov x11, x1 // actual data @@ -287,6 +289,9 @@ function barf mov x1, x12 bl dumphex puts "]\n" + puts "\tSVCR: " + mov x0, x13 + bl putdecn mov x8, #__NR_getpid svc #0 |