diff options
| author | Steven Price <steven.price@arm.com> | 2019-12-16 11:33:37 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-01-15 11:13:07 +0000 |
| commit | d4209d8b717311d114b5d47ba7f8249fd44e97c2 (patch) | |
| tree | ca1180c2cd7c364da1e92c187a0a42f6c4c7e000 /arch/arm64/include/uapi | |
| parent | 46cf053efec6a3a5f343fead837777efe8252a46 (diff) | |
arm64: cpufeature: Export matrix and other features to userspace
Export the features introduced as part of ARMv8.6 exposed in the
ID_AA64ISAR1_EL1 and ID_AA64ZFR0_EL1 registers. This introduces the
Matrix features (ARMv8.2-I8MM, ARMv8.2-F64MM and ARMv8.2-F32MM) along
with BFloat16 (Armv8.2-BF16), speculation invalidation (SPECRES) and
Data Gathering Hint (ARMv8.0-DGH).
Signed-off-by: Julien Grall <julien.grall@arm.com>
[Added other features in those registers]
Signed-off-by: Steven Price <steven.price@arm.com>
[will: Don't advertise SPECRES to userspace]
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/uapi')
| -rw-r--r-- | arch/arm64/include/uapi/asm/hwcap.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h index a1e72886b30c..e6dad5924703 100644 --- a/arch/arm64/include/uapi/asm/hwcap.h +++ b/arch/arm64/include/uapi/asm/hwcap.h @@ -65,5 +65,12 @@ #define HWCAP2_SVESM4 (1 << 6) #define HWCAP2_FLAGM2 (1 << 7) #define HWCAP2_FRINT (1 << 8) +#define HWCAP2_SVEI8MM (1 << 9) +#define HWCAP2_SVEF32MM (1 << 10) +#define HWCAP2_SVEF64MM (1 << 11) +#define HWCAP2_SVEBF16 (1 << 12) +#define HWCAP2_I8MM (1 << 13) +#define HWCAP2_BF16 (1 << 14) +#define HWCAP2_DGH (1 << 15) #endif /* _UAPI__ASM_HWCAP_H */ |