arm64/sve: Report FEAT_SVE_B16B16 to userspace

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SVE 2.1 introduced a new feature FEAT_SVE_B16B16 which adds instructions
supporting the BFloat16 floating point format. Report this to userspace
through the ID registers and hwcap.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230915-arm64-zfr-b16b16-el0-v1-1-f9aba807bdb5@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2023-09-15 13:18:06 +01:00 • committed by Catalin Marinas

parent 6465e260f4

commit 5d5b4e8c2d

7 changed files with 16 additions and 1 deletions

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2

Documentation/arch/arm64/cpu-feature-registers.rst

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Documentation/arch/arm64/elf_hwcaps.rst

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arch/arm64/include/asm/hwcap.h

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arch/arm64/include/uapi/asm/hwcap.h

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arch/arm64/kernel/cpufeature.c

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arch/arm64/kernel/cpuinfo.c

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arch/arm64/tools/sysreg

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