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| author | Mark Brown <broonie@kernel.org> | 2019-06-18 19:10:55 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-06-25 14:24:00 +0100 |
| commit | ca9503fc9e9812aa6258e55d44edb03eb30fc46f (patch) | |
| tree | 5deac994c347391edae01f5601a02db7f8be5434 /Documentation/arm64 | |
| parent | 1201937491822b61641c1878ebcd16a93aed4540 (diff) | |
| download | linux-ca9503fc9e9812aa6258e55d44edb03eb30fc46f.tar.gz linux-ca9503fc9e9812aa6258e55d44edb03eb30fc46f.tar.bz2 linux-ca9503fc9e9812aa6258e55d44edb03eb30fc46f.zip | |
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 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt index ee8dbfe652b6..5ae2ef2c12f3 100644 --- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -227,6 +227,10 @@ HWCAP_PACG ID_AA64ISAR1_EL1.GPI == 0b0001, as described by Documentation/arm64/pointer-authentication.txt. +HWCAP2_FRINT + + Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001. + 4. Unused AT_HWCAP bits ----------------------- |