diff options
| -rw-r--r-- | arch/arm/include/uapi/asm/hwcap.h | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 1 | ||||
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 6 |
3 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index 3d168d4f2a51..14e260e2d6d0 100644 --- a/arch/arm/include/uapi/asm/hwcap.h +++ b/arch/arm/include/uapi/asm/hwcap.h @@ -32,6 +32,7 @@ #define HWCAP_ASIMDHP (1 << 23) #define HWCAP_ASIMDDP (1 << 24) #define HWCAP_ASIMDFHM (1 << 25) +#define HWCAP_ASIMDBF16 (1 << 26) /* * HWCAP2 flags - for elf_hwcap2 (in kernel) and AT_HWCAP2 diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index d88c1326f529..070067cb6c77 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1253,6 +1253,7 @@ static const char *hwcap_str[] = { "asimdhp", "asimddp", "asimdfhm", + "asimdbf16", NULL }; diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 404c4f901132..ff574cb8a0b9 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -851,6 +851,12 @@ static int __init vfp_init(void) */ if (cpuid_feature_extract_field(isar6, 8) == 0x1) elf_hwcap |= HWCAP_ASIMDFHM; + /* + * Check for the presence of Advanced SIMD Bfloat16 + * floating point instructions. + */ + if (cpuid_feature_extract_field(isar6, 20) == 0x1) + elf_hwcap |= HWCAP_ASIMDBF16; /* Extract the architecture version on pre-cpuid scheme */ } else { |