diff options
| author | Mark Brown <broonie@kernel.org> | 2019-06-18 21:10:55 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-06-25 16:24:00 +0300 |
| commit | ca9503fc9e9812aa6258e55d44edb03eb30fc46f (patch) | |
| tree | 5deac994c347391edae01f5601a02db7f8be5434 /arch/arm64/include/asm | |
| parent | 1201937491822b61641c1878ebcd16a93aed4540 (diff) | |
| download | linux-ca9503fc9e9812aa6258e55d44edb03eb30fc46f.tar.xz | |
arm64: Expose FRINT capabilities to userspace
ARMv8.5 introduces the FRINT series of instructions for rounding floating
point numbers to integers. Provide a capability to userspace in order to
allow applications to determine if the system supports these instructions.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/hwcap.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index 838c47f90389..8371202e0a8b 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -96,6 +96,7 @@ #define KERNEL_HWCAP_SVESHA3 __khwcap2_feature(SVESHA3) #define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4) #define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2) +#define KERNEL_HWCAP_FRINT __khwcap2_feature(FRINT) /* * This yields a mask that user programs can use to figure out what diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 902d75b60914..601972771807 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -560,6 +560,7 @@ /* id_aa64isar1 */ #define ID_AA64ISAR1_SB_SHIFT 36 +#define ID_AA64ISAR1_FRINTTS_SHIFT 32 #define ID_AA64ISAR1_GPI_SHIFT 28 #define ID_AA64ISAR1_GPA_SHIFT 24 #define ID_AA64ISAR1_LRCPC_SHIFT 20 |