diff options
| author | Mark Brown <broonie@kernel.org> | 2025-09-18 20:42:07 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-09-19 12:50:17 +0100 |
| commit | 777fb19ed8d6f193c2811b76371ffb41acbca1da (patch) | |
| tree | e925cc11b7c740059914c28456d1255e61846769 /tools/testing/selftests | |
| parent | kselftest/arm64: Check that unsupported regsets fail in sve-ptrace (diff) | |
| download | linux-777fb19ed8d6f193c2811b76371ffb41acbca1da.tar.gz linux-777fb19ed8d6f193c2811b76371ffb41acbca1da.zip | |
kselftest/arm64: Add lsfe to the hwcaps test
This feature has no traps associated with it so the SIGILL is not reliable.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/arm64/abi/hwcap.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 27d4790c2f0c..3b96d090c5eb 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -17,6 +17,8 @@ #include <asm/sigcontext.h> #include <asm/unistd.h> +#include <linux/auxvec.h> + #include "../../kselftest.h" #define TESTS_PER_HWCAP 3 @@ -168,6 +170,18 @@ static void lse128_sigill(void) : "cc", "memory"); } +static void lsfe_sigill(void) +{ + float __attribute__ ((aligned (16))) mem; + register float *memp asm ("x0") = &mem; + + /* STFADD H0, [X0] */ + asm volatile(".inst 0x7c20801f" + : "+r" (memp) + : + : "memory"); +} + static void lut_sigill(void) { /* LUTI2 V0.16B, { V0.16B }, V[0] */ @@ -762,6 +776,13 @@ static const struct hwcap_data { .sigill_fn = lse128_sigill, }, { + .name = "LSFE", + .at_hwcap = AT_HWCAP3, + .hwcap_bit = HWCAP3_LSFE, + .cpuinfo = "lsfe", + .sigill_fn = lsfe_sigill, + }, + { .name = "LUT", .at_hwcap = AT_HWCAP2, .hwcap_bit = HWCAP2_LUT, |