diff options
| author | Mark Brown <broonie@kernel.org> | 2019-06-18 20:10:54 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-06-25 15:21:41 +0200 |
| commit | 1201937491822b61641c1878ebcd16a93aed4540 (patch) | |
| tree | dd42f26ddbc06125c9aad5dbe6ba438678c459ab /arch/arm64/include/asm/hwcap.h | |
| parent | arm64: defconfig: enable CONFIG_RANDOMIZE_BASE (diff) | |
| download | linux-1201937491822b61641c1878ebcd16a93aed4540.tar.xz linux-1201937491822b61641c1878ebcd16a93aed4540.zip | |
arm64: Expose ARMv8.5 CondM capability to userspace
ARMv8.5 adds new instructions XAFLAG and AXFLAG to translate the
representation of the results of floating point comparisons between the
native ARM format and an alternative format used by some software. Add
a hwcap allowing userspace to determine if they are present, since we
referred to earlier CondM extensions as FLAGM call these extensions
FLAGM2.
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/hwcap.h')
| -rw-r--r-- | arch/arm64/include/asm/hwcap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index b4bfb6672168..838c47f90389 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -95,6 +95,7 @@ #define KERNEL_HWCAP_SVEBITPERM __khwcap2_feature(SVEBITPERM) #define KERNEL_HWCAP_SVESHA3 __khwcap2_feature(SVESHA3) #define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4) +#define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2) /* * This yields a mask that user programs can use to figure out what |