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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>
This commit is contained in:
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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arch/arm64/include/uapi/asm/hwcap.h
+1
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@@ -104,5 +104,6 @@
#define HWCAP2_SME_F16F16 (1UL << 42)
#define HWCAP2_MOPS (1UL << 43)
#define HWCAP2_HBC (1UL << 44)
#define HWCAP2_SVE_B16B16 (1UL << 45)
#endif /* _UAPI__ASM_HWCAP_H */