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authorMark Brown <broonie@kernel.org>2023-09-15 14:18:06 +0200
committerCatalin Marinas <catalin.marinas@arm.com>2023-09-29 16:56:17 +0200
commit5d5b4e8c2d9ec12a5cc013b82c1873cd387e0ddf (patch)
treef7705ca29fb1e96d692e1e69e2fbe56ab2dcfd42 /arch/arm64/include/uapi/asm
parentLinux 6.6-rc3 (diff)
downloadlinux-5d5b4e8c2d9ec12a5cc013b82c1873cd387e0ddf.tar.xz
linux-5d5b4e8c2d9ec12a5cc013b82c1873cd387e0ddf.zip
arm64/sve: Report FEAT_SVE_B16B16 to userspace
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>
Diffstat (limited to 'arch/arm64/include/uapi/asm')
-rw-r--r--arch/arm64/include/uapi/asm/hwcap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 53026f45a509..6faf549077c5 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -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 */