diff options
Diffstat (limited to 'tools/testing/selftests/arm64/abi/hwcap.c')
| -rw-r--r-- | tools/testing/selftests/arm64/abi/hwcap.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 002ec38a8bbb..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 @@ -55,7 +57,6 @@ static void cmpbr_sigill(void) /* Not implemented, too complicated and unreliable anyway */ } - static void crc32_sigill(void) { /* CRC32W W0, W0, W1 */ @@ -169,6 +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] */ @@ -763,6 +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, |